Gluing plant for refrigerated trucks
Tec Mac has developed a cost effective but very efficient fully automated gluing line dedicated to refrigerated truck body manufacturer. The line consists in the reliable dosing unit and its traverse unit travelling over the panels’ preparation tables for the automated dispensing of the glue according to the production recipe loaded from the memory of the system.
The system works as follows:
1) The operators place the external facing over the first preparation table
2) The automated glue dispensing starts according to the production program loaded in the system.
3) In the meantime the operators can place the insulating sheets over the just glued facing
4) Once the automated dispensing is completed, the mixing head is moved out of the line waiting for the next gluing. If this does not happen before the glue starts hardening, an automated head cleaning cycle starts.
5) Once the operator has completed the positioning of the insulating sheets and/or steel or wooden reinforcements, the adhesive dispensing starts for the second gluing
6) Once the second gluing is completed, the dispensing unit automatically moved over the next table, ready to start a new gluing program
7) The operator cover the insulating sheets with the second facing
8) The operator cover the panels with the plastic sheets and put them under vacuum for the needed glue curing time.
9) When the curing time is expired, the operator removed the vacuum and remove the glued panels, so the table is ready for the next gluing
Many are the advantages of our technology:
1) Very low capital investment, especially if compared with the traditional direct foaming system (less than 1/10). No need to buy an extremely expensive press but just a preparation table, our gluing unit and its automated dispensing device.
2) Bubble free panels. Sometimes with the direct foaming some air bubbles are entrapped into the foam, creating dangerous thermal bridges.
3) Stronger panels meaning stronger truck body because the bonding with our technology is done with glue and not while foaming
4) Exact positioning of reinforcement. In our system the reinforcement are bonded exactly in the required position while in the foaming the reinforcement may be pushed out by the foam pressure during its expansion inside the press.
5) Cheaper insulating material: possibility to select the cheapest insulating material according to the economic situation. Many different insulating materials can be used like XPS, polyurethane etc while with the direct foaming only polyurethane panels can be used.
6) Higher productivity. With our system the productivity is higher
7) Increase of productivity with very low capital investment. Just need to add a preparation table and not to buy another extremely expensive press.
Our gluing system can be easily and quickly implemented in existing line, both if the tables are in-line or side-by-side.