Vertical track heat shrink tubing oven

Abstract

The utility model discloses a kind of vertical track heat shrink tube baking machines, including rack and the conveying belt mechanism being arranged in rack, heating plate, cooling mechanism and elastic compression mechanism;The upper end of rack is formed with feeding area and the lower end is formed with discharge area;Conveying belt mechanism is connected between feeding area and discharge area;Heating plate is arranged in the two sides of wire harness conveying path, cooling mechanism is located downstream of conveying belt mechanism, and elastic compression mechanism is arranged in conveying belt mechanism, further including the control system for controlling the present baking machine.This utility model improves heat shrink quality and safety, and simultaneously, single motor drive is used to the wire harness front and rear clamping belt, avoids the wire harness rotation after clamping, thereby avoiding the friction to belt, improves the service life of belt, and realizes automatic adjustment pressure according to the diameter difference of wire harness left and right side, ensures to wire harness stable clamping, improves heat shrink effect and improves cooling effect.

Description

Technical Field

[0001] This utility model belongs to the field of wire harness heat shrinking equipment, specifically, it relates to a vertical track heat shrink tubing baking machine. Background Technology

[0002] A wire harness is an integrated component in an electrical system, consisting of multiple wires, connectors, terminals, and insulation materials combined according to specific functions. It is widely used in automotive, electronic equipment, aerospace, and industrial machinery industries. Its core function is to connect disparate electrical components (such as sensors, controllers, and actuators) into an ordered circuit network via wires, enabling signal transmission or power supply. To slow down the aging and corrosion of wire harnesses due to long-term use, extend their overall lifespan, and reduce the frequency of equipment maintenance and wire harness replacement, heat shrink tubing is typically used to cover the wire harness.

[0003] Currently, the application of heat shrink tubing to wire harnesses is primarily accomplished using heat shrink equipment. However, existing heat shrink equipment suffers from the following significant drawbacks during the heat shrinking process:

[0004] 1) Inappropriate heating method: Existing equipment mostly adopts a parallel horizontal heating method, that is, two heating plates are set in parallel, and the wire harness is driven by belts on both sides. This method has serious drawbacks: the wire harness will lengthen due to thermal expansion after being heated, and the wire harness in the heat shrinking area is prone to drooping and touching the heating plate, which may cause problems such as fire or uneven heat shrinkage;

[0005] 2) Excessive travel: During the wire harness production process, the longer the travel of the heat shrink tubing during baking, the greater the drag force on the wire harness, leading to an increase in the defect rate;

[0006] 3) Large size: Existing heat shrink equipment is large in size, which requires a certain amount of space in the production workshop and is not convenient to use with other equipment;

[0007] 4) Insufficient belt clamping force: Existing heat shrink machines lack a belt elastic clamping mechanism. When the diameters of the left and right sides of the wire harness are inconsistent, the thinner side is easy to not clamp tightly, which affects the heat shrinking effect.

[0008] 5) Poor cooling effect: After baking, the product needs to be cooled quickly, but the small fan used in the existing equipment cannot achieve the effect of rapid cooling, which affects production efficiency. Utility Model Content

[0009] In order to solve the problems existing in the prior art, this utility model aims to provide a vertical track heat shrink tubing baking machine.

[0010] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0011] A vertical tracked heat shrink tubing baking machine includes a frame and a conveyor belt mechanism, a heating plate, a cooling mechanism, and an elastic clamping mechanism disposed within the frame. The frame has a loading area at its upper end and a unloading area at its lower end. The conveyor belt mechanism connects the loading area and the unloading area, conveying the wire harness from the loading area to the unloading area by clamping. The heating plate is disposed on both sides of the wire harness conveying path for baking the heat shrink tubing attached to the wire harness. The cooling mechanism is located downstream of the conveyor belt mechanism for cooling the baked wire harness. The elastic clamping mechanism is disposed within the conveyor belt mechanism for providing elastic pressure to ensure stable clamping of the wire harness. The machine also includes a control system for controlling the baking machine, with the conveyor belt mechanism, heating plate, and cooling mechanism electrically connected to the control system.

[0012] Furthermore, it also includes two sets of temperature sensors for monitoring the temperature, which are respectively connected to the control system via electrical signals.

[0013] Furthermore, the conveyor belt mechanism includes a front belt module and a rear belt module arranged opposite to each other, and the elastic clamping mechanism is disposed on the rear belt module side; under the action of no external force, the elastic clamping mechanism has a tendency to drive the belt to which the rear belt module belongs to move closer to the front belt module.

[0014] Furthermore, the elastic clamping mechanism includes a fixed base and a cover plate connected to the fixed base. Several sets of connecting holes are evenly opened from top to bottom on the end face of the fixed base opposite to the cover plate. A connecting rod that can slide inside each connecting hole is inserted into the connecting hole. A spring is provided between the rear end of the connecting rod and the inner bottom surface of the connecting hole, and a clamping wheel is provided at the front end of the connecting rod.

[0015] Furthermore, semi-circular slots are respectively formed between the upper side of the connecting hole and the upper end face of the connecting rod, and between the lower side of the connecting hole and the lower end face of the connecting rod, and ball bearings are respectively provided between the slots.

[0016] Furthermore, the cooling mechanism includes a vortex tube cooler, an upper air blowing assembly, and a lower air blowing assembly; the cold air outlet of the vortex tube cooler is connected to the upper air blowing assembly and the lower air blowing assembly respectively through corresponding pipes.

[0017] Furthermore, the upward air blowing assembly includes an upward air supply block and a fixing plate disposed on the upper and lower end faces of the upward air supply block; an air cavity A is formed inside the upward air supply block, and an upper baffle is provided at the opening of the air cavity A, with an upward air blowing port on the upper baffle; at least one set of upward air supply holes communicating with the air cavity A are provided on the rear end face of the upward air supply block, and at least one set of air outlet holes communicating with the air cavity A are respectively provided on the upper and lower end faces of the upward air supply block, and a clearance groove is provided around the outer opening of each air outlet hole, the clearance groove communicating with the front end face of the upward air supply block; when the fixing plate is installed, an air outlet is formed on the front side of the upper and lower end faces of the upward air supply block.

[0018] Furthermore, the downward blowing assembly includes a downward air supply block, in which an air cavity B is formed, and a lower baffle is provided at the opening of the air cavity B. The lower baffle is provided with a downward air outlet, and at least one set of downward air supply holes communicating with the air cavity B are provided on the rear end face of the downward air supply block. A base plate is provided at the lower end of the downward air supply block, and through holes corresponding to the downward air supply holes are provided in the base plate.

[0019] Furthermore, it also includes a heat dissipation and ventilation system, which includes a duct and an exhaust fan, with the exhaust fan located at the air outlet of the duct.

[0020] Furthermore, the feeding area is provided with a dial and a pair of control blocks adapted to the dial, and the position of the pair of control blocks on the feeding area can be adjusted.

[0021] The beneficial effects of this utility model are as follows:

[0022] 1. This utility model adopts a vertical conveying heating method, which avoids the problem of fire or uneven heat shrinkage caused by the wire harness becoming longer and drooping when it touches the heating plate. This improves the heat shrinkage quality and safety. At the same time, the front and rear clamping belts of the wire harness are driven by separate motors, which avoids the wire harness from rotating, thereby avoiding friction on the belt and improving the service life of the belt.

[0023] 2. By setting up an elastic clamping mechanism, this utility model can automatically adjust the pressure according to the difference in diameter between the left and right sides of the wire harness, ensuring stable clamping of the wire harness and improving the heat shrinking effect.

[0024] 3. This utility model achieves air cooling by setting up a vortex tube cooler, which improves the cooling effect. At the same time, by setting air outlets at the upper and lower ends of the air supply module, an air curtain effect is formed to isolate the heat source, further improving the cooling effect. Secondly, by setting up a heat dissipation and exhaust system, the airflow blown by the air supply module towards the wire harness is quickly drawn away, which further improves the cooling effect on the wire harness.

[0025] 4. The overall structure of this utility model is compact, which reduces the size of the equipment, lowers the space requirements of the production workshop, and facilitates movement.

[0026] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0028] Figure 1 This is a schematic diagram of the overall structure of the baking machine of this utility model;

[0029] Figure 2 This is a cross-sectional view of the baking machine of this utility model;

[0030] Figure 3 This is a schematic diagram showing the connection between the conveyor belt mechanism and the elastic clamping mechanism of this utility model;

[0031] Figure 4 This is a schematic diagram of the conveyor belt mechanism of this utility model;

[0032] Figure 5 This is a schematic diagram of the elastic clamping mechanism of this utility model;

[0033] Figure 6 This is a schematic diagram of the elastic pressing mechanism of this utility model without the cover plate.

[0034] Figure 7 This is a schematic diagram of the elastic clamping mechanism of this utility model after one of the connecting rods has been pulled out;

[0035] Figure 8 This is a schematic diagram of the structure of the top blower assembly of this utility model;

[0036] Figure 9 This is an exploded view of the blower assembly of this utility model;

[0037] Figure 10 This utility model Figure 9 Enlarged image from C;

[0038] Figure 11 This is a schematic diagram of the downward blowing component structure of this utility model;

[0039] Figure 12 This is an exploded view of the down-blowing component of this utility model;

[0040] Figure 13 This is a cross-sectional view of the downward blowing component of this utility model.

[0041] Explanation of the numbers in the diagram: 1. Frame; 2. Conveyor belt mechanism; 3. Heating plate; 4. Cooling mechanism; 5. Elastic clamping mechanism; 6. Heat dissipation and ventilation system; 7. Control system; 11. Loading area; 12. Unloading area; 111. Dial; 112. Control block; 21. Front belt module; 22. Rear belt module; 211. Clamping synchronous pulley assembly; 212. Drive synchronous pulley assembly; 213. Drive motor; 214. Connecting shaft; 215. Connecting rod; 41. Vortex tube cooler; 42. Upper blowing assembly; 43. Lower blowing assembly; 421. 422. Upper air supply block; 423. Fixing plate; 4211. Upper baffle; 4212. Air cavity A; 4213. Upper air supply hole; 4214. Air outlet; 4215. Clearance groove; 4231. Upper air blowing outlet; 431. Lower air supply block; 432. Lower baffle; 433. Base plate; 4311. Air cavity B; 4312. Lower air supply hole; 4321. Lower air blowing outlet; 4331. Through hole; 51. Fixing seat; 52. Cover plate; 53. Connecting rod; 54. Spring; 55. Pressure wheel; 511. Connecting hole; 512. Slot; 61. Air duct; 62. Exhaust fan. Detailed Implementation

[0042] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] It should be noted that all directional indicators (such as up, down, left, right, front, back, upper end, lower end, top, bottom, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0044] See Figure 1-2As shown, a vertical tracked heat shrink tubing baking machine includes a frame 1 and a conveyor belt mechanism 2, a heating plate 3, a cooling mechanism 4, and an elastic clamping mechanism 5 disposed within the frame 1. The conveyor belt mechanism 2 is connected between the loading area 11 and the unloading area 12, and conveys the wire harness from the loading area 11 to the unloading area 12 by clamping. The heating plate 3 is disposed on both sides of the wire harness conveying path and is used to bake the heat shrink tubing disposed on the wire harness. The cooling mechanism 4 is located downstream of the conveyor belt mechanism 2 and is used to cool the baked wire harness. The elastic clamping mechanism 5 is disposed within the conveyor belt mechanism 2 and is used to provide elastic pressure to the conveyor belt mechanism 2 to ensure stable clamping of the wire harness. The machine also includes a control system 7 for controlling the baking machine, and the conveyor belt mechanism 2, the heating plate 3, and the cooling mechanism 4 are electrically connected to the control system 7.

[0045] Further, see Figure 1 As shown, the upper end of the frame 1 forms a feeding area 11 and the lower end forms a discharging area 12; wherein, a scale 111 and a pair of control blocks 112 adapted to the scale 111 are provided in the feeding area 11. The position of the pair of control blocks 112 on the feeding area 11 can be adjusted. The size and position of the heat shrink tubing on the wire harness can be controlled by the pair of control blocks 112, thereby preventing excessive deviation in the size and position of the heat shrink tubing, ensuring quality and improving consistency.

[0046] Further, see Figure 3-4 As shown, the conveyor belt mechanism 2 includes a front belt module 21 and a rear belt module 22 arranged opposite to each other; both the front belt module 21 and the rear belt module 22 include two sets of clamping synchronous pulley assemblies 211, a driving synchronous pulley assembly 212, and a driving motor 213; wherein, the two sets of clamping synchronous pulley assemblies 211 are connected together by a connecting shaft 214, and one of the two sets of clamping synchronous pulley assemblies 211 is connected to a connecting rod 215, and the connecting rod 215 is connected to the driving synchronous pulley assembly 212 and the driving motor 213; wherein, in this embodiment, the driving motor 213 is a servo motor, and the driving motor 213 is electrically connected to the control system 7, and the control system 7 controls the start and stop of the driving motor 213.

[0047] During installation, the clamping synchronous pulley assemblies 211 in the front belt module 21 and the rear belt module 22 are rotatably mounted on the frame 1, while the drive motor 213 is fixed to the frame 1 via a corresponding motor bracket. At this time, the clamping synchronous pulley assemblies 211 in the front belt module 21 and the rear belt module 22 correspond one-to-one, and the corresponding clamping synchronous pulley assemblies 211 are arranged opposite each other, forming a vertically downward straight section between their opposing surfaces. This straight section is located between the loading area 11 and the unloading area 12. During operation, the clamping synchronous pulley assemblies 211 in the front belt module 21 and the rear belt module 22... The drive motor 213 drives the connecting rod 215 to rotate, thereby driving the clamping synchronous pulley assembly 211 connected to the connecting rod 215 to rotate. The rotating clamping synchronous pulley assembly 211 drives another set of clamping synchronous pulley assemblies 211 to rotate synchronously with it through the connecting shaft 212. When the wire harness is placed into the conveyor belt mechanism 2, the two ends of the wire harness are respectively clamped in the straight section between the two sets of clamping synchronous pulley assemblies 211, thereby realizing the conveying of the wire harness from the loading area 11 to the unloading area 12. During the conveying process, the heat shrink tubing set on the wire harness is baked by the heating plate 3.

[0048] To prevent fires due to high temperatures during the baking process, two sets of temperature sensors (not shown in the figure) are installed. These two sets of temperature sensors are electrically connected to the control system 7. During operation, one set of temperature sensors acts as a temperature control sensor, monitoring the core temperature of the heating plate 3 in real time and promptly feeding the monitoring data back to the control system 7. The control system 7 precisely adjusts the heating power based on the feedback data to ensure the temperature remains stable within the set process range. The other set of temperature sensors acts as a protection sensor, with a set protection temperature value slightly higher than the maximum process temperature set by the temperature control sensor. When the temperature abnormally rises during baking and reaches the protection temperature value, the protection sensor quickly sends a signal to the control system 7, which immediately cuts off the heating power to prevent fires and other safety accidents caused by excessive temperature, thus achieving dual protection.

[0049] Further, see Figure 3 As shown, the elastic clamping mechanism 5 is disposed on the side of the rear belt module 22, and each of the two sets of clamping synchronous pulley assemblies 211 in the rear belt module 22 corresponds to one set of the elastic clamping mechanism 5, that is, two sets of the elastic clamping mechanism 5 are disposed; see also Figure 5-7As shown, the elastic clamping mechanism 5 includes a fixed base 51 and a cover plate 52 connected to the fixed base 51. Eleven sets of connecting holes 511 are evenly distributed from top to bottom on the end face of the fixed base 51 opposite to the cover plate 52. However, this is not limited to eleven sets; other numbers can be provided, depending on the actual situation. Each connecting hole 511 communicates with the front end face of the fixed base 51, and a connecting rod 53, which can slide within the connecting hole 511, is inserted from the front end face into each connecting hole 511. A space is provided between the rear end of each connecting rod 53 and the inner bottom surface of the connecting hole 511. A spring 54 is provided, and a pressure wheel 55 is provided at the front end of the connecting rod 53. The pressure wheel 55 is I-shaped. During installation, the elastic pressure mechanism 5 is fixed on the frame 1 by the fixed seat 51. At this time, the pressure wheel 55 abuts against the inner side of the synchronous belt in the rear belt module 22. As the synchronous belt in the rear belt module 22 is subjected to force, the pressure wheel 55 can be squeezed to drive the connecting rod 53 to move inward toward the connecting hole 511. This enables the pressure to be automatically adjusted according to the outer diameter of both sides of the wire harness during the wire harness transportation process, ensuring stable clamping of the wire harness.

[0050] In this embodiment, semi-circular slots 512 are respectively formed between the upper side of the connecting hole 511 and the upper end face of the connecting rod 53, and between the lower side of the connecting hole 511 and the lower end face of the connecting rod 53. The opening direction of the slots 512 is parallel to the sliding direction of the connecting rod 53, and ball bearings 56 are respectively provided between the slots 512 to reduce the resistance of the connecting rod 53 in moving through the connecting hole 511. It should be noted that the slots 512 formed on the side of the connecting hole 511 all penetrate the front end face of the fixing base 51, while the slots 512 formed on the connecting rod 53 do not penetrate its two end faces.

[0051] Further, see Figure 2 As shown, the cooling mechanism 4 includes a vortex tube cooler 41, an upper air blowing assembly 42, and a lower air blowing assembly 43. During installation, after the vortex tube cooler 41, the upper air blowing assembly 42, and the lower air blowing assembly 43 are all installed on the frame 1, the cold air outlet of the vortex tube cooler 41 is connected to the upper air blowing assembly 42 and the lower air blowing assembly 43 through corresponding pipes. The upper air blowing assembly 42 and the lower air blowing assembly 43 are arranged on both sides of the wire harness output path, with the upper air blowing assembly 42 located above and the lower air blowing assembly 43 located below, forming an upper and lower distribution. During operation, an external air supply device supplies air to the vortex tube cooler 41 through corresponding pipes, and after passing through the vortex tube cooler 41, the air is delivered to the upper air blowing assembly 42 and the lower air blowing assembly 43 and blown out, thereby cooling the heat-shrinked wire harness.

[0052] Among them, see Figure 8-10 As shown, the upward air blowing assembly 42 includes an upward air supply block 421 and a fixing plate 422 disposed on the upper and lower end faces of the upward air supply block 421; an air cavity A4211 is formed inside the upward air supply block 421, and an upper baffle 423 is disposed at the opening of the air cavity A4211, and an upward air blowing port 4231 is provided on the upper baffle 423; two sets of upward air supply holes 4212 communicating with the air cavity A4211 are provided on the rear end face of the upward air supply block 421. 12 is connected to the cold air outlet of the vortex tube cooler 41 through corresponding pipes, and two sets of air outlets 4213 communicating with the air cavity A4211 are respectively opened on the upper and lower end faces of the upper air supply block 421, and clearance grooves 4214 are opened around the outer opening of the air outlets 4213, and the clearance grooves 4214 are communicating with the front end face of the upper air supply block 421; when the fixing plate 422 is installed, two sets of air outlets 4213 are respectively formed on the front side of the upper and lower end faces of the upper air supply block 421. A single air outlet is formed. During operation, the cold air outlet of the vortex tube cooler 41 is connected to the upper air supply hole 4212 through a pipe. After being cooled by the vortex tube cooler 41, the air enters the upper air supply hole 4212 through the pipe and is then sent into the air chamber A4211. It is then blown out through the upper air outlet 4231, thereby cooling the wire harness after the heat shrink tubing has been baked. At the same time, some of the air enters the air outlet 4213 and passes through the clearance groove 4214, finally being blown out through the outlet. This design achieves cooling of the wire harness after the heat shrink tubing has been baked, while simultaneously creating an air curtain effect on the upper and lower surfaces of the upper air supply block 421. This isolates the heat source from the heat shrink tubing baking process outside the air curtain and also isolates the heat source emitted by the wire harness after the heat shrink tubing baking process between the air curtains. It should be noted that the number of sets of the upper air supply holes 4212 and the air outlet holes 4213 described above is only one implementation method and is not intended to limit the scope of this application. The specific number of sets can be set according to actual needs.

[0053] See Figure 11-13As shown, the downward air blowing assembly 43 includes a downward air supply block 431, within which an air cavity B4311 is formed. A lower baffle 432 is provided at the opening of the air cavity B4311, and a downward air blowing port 4321 is provided on the lower baffle 432. Two sets of downward air supply holes 4312 communicating with the air cavity B4311 are provided on the rear end face of the downward air supply block 431. A base plate 433 is provided at the lower end of the downward air supply block 431, and through holes 4331 corresponding one-to-one with the downward air supply holes 4312 are provided in the base plate 433. During installation, the downward air supply block 431 is fixed to the frame 1 by the base plate 433. One end of the through hole 4331 is connected to the corresponding lower air outlet 431. During operation, the cold air outlet of the vortex tube cooler 41 is connected to the other end of the through hole 4331 through a pipe. After being cooled by the vortex tube cooler 41, the air passes through the through hole 4331 and the lower air outlet 4312 through the pipe and enters the air chamber B4311. The air is then blown onto the wire harness through the lower air outlet 4321 to further cool the wire harness and ensure the cooling effect. It should be noted that the number of sets of the lower air outlet 4312 is only one implementation method and is not intended to limit the scope of this application. The specific number of sets can be set according to actual needs.

[0054] In addition, see Figure 2 As shown, this baking machine also includes a heat dissipation and ventilation system 6 installed in the frame 1. The heat dissipation and ventilation system 6 includes a duct 61 and an exhaust fan 62. During installation, the air inlet of the duct 61 is arranged directly opposite the upper air blowing assembly 42, and the air outlet of the duct 61 is arranged on the rear side of the frame 1. The exhaust fan 62 is located at the air outlet of the duct 61. During operation, the exhaust fan 62 is activated to quickly draw away the airflow blown by the upper air blowing assembly 42 towards the wire harness, thereby improving the cooling effect on the wire harness.

[0055] The working principle of this utility model is as follows:

[0056] Before operation, first connect the cooling mechanism 4 to the air compression device.

[0057] During operation, the wire harness is placed into the conveyor belt mechanism 2 via the loading area 11. The wire harness is then conveyed to the unloading area 12 under the drive of the conveyor belt mechanism 2. During the conveying process, the heating plate 3 heats the wire harness and then enters the cooling mechanism 4 area after passing through the heating area. The cooling mechanism 4 cools the heat-shrinkable tubing after the heat-shrinkable tubing is heated. Finally, the wire harness that has completed the heat-shrinkable tubing heating and cooling process is conveyed to the unloading area 12 to complete the heat-shrinkable tubing heating operation.

[0058] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vertical track heat shrink tubing baking machine, characterized in that: The device includes a frame (1) and a conveyor belt mechanism (2), a heating plate (3), a cooling mechanism (4), and an elastic clamping mechanism (5) disposed within the frame (1). The frame (1) has a loading area (11) at its upper end and a unloading area (12) at its lower end. The conveyor belt mechanism (2) connects the loading area (11) and the unloading area (12), and conveys the wire harness from the loading area (11) to the unloading area (12) by clamping. The heating plate (3) is disposed on both sides of the wire harness conveying path, and is used for... The heat shrink tubing on the wire harness is baked; the cooling mechanism (4) is located downstream of the conveyor belt mechanism (2) and is used to cool the baked wire harness; the elastic clamping mechanism (5) is located inside the conveyor belt mechanism (2) and is used to provide elastic pressure to the conveyor belt mechanism (2) to ensure stable clamping of the wire harness; it also includes a control system (7) for controlling the baking machine, and the conveyor belt mechanism (2), heating plate (3) and cooling mechanism (4) are respectively electrically connected to the control system (7).

2. The vertical track heat shrink tubing baking machine according to claim 1, characterized in that: It also includes two sets of temperature sensors for monitoring the temperature, which are electrically connected to the control system (7).

3. The vertical track heat shrink tubing baking machine according to claim 1, characterized in that: The conveyor belt mechanism (2) includes a front belt module (21) and a rear belt module (22) arranged opposite to each other. The elastic pressing mechanism (5) is arranged on the side of the rear belt module (22). Under the action of no external force, the elastic pressing mechanism (5) tends to drive the belt of the rear belt module (22) to move closer to the front belt module (21).

4. The vertical track heat shrink tubing baking machine according to claim 2 or 3, characterized in that: The elastic pressing mechanism (5) includes a fixed base (51) and a cover plate (52) connected to the fixed base (51). A number of connecting holes (511) are evenly opened from top to bottom on the end face of the fixed base (51) opposite to the cover plate (52). The connecting holes (511) are connected to the front end face of the fixed base (51), and a connecting rod (53) that can slide inside the connecting hole (511) is respectively inserted from the front end face. A spring (54) is provided between the rear end of the connecting rod (53) and the inner bottom surface of the connecting hole (511), and a pressing wheel (55) is provided at the front end of the connecting rod (53).

5. The vertical track heat shrink tubing baking machine according to claim 4, characterized in that: Semi-circular slots (512) are respectively opened between the upper side of the connecting hole (511) and the upper end face of the connecting rod (53) and between the lower side of the connecting hole (511) and the lower end face of the connecting rod (53), and ball bearings (56) are respectively provided between the slots (512).

6. The vertical track heat shrink tubing baking machine according to claim 1, characterized in that: The cooling mechanism (4) includes a vortex tube cooler (41), an upper air blowing assembly (42), and a lower air blowing assembly (43); the cold air outlet of the vortex tube cooler (41) is connected to the upper air blowing assembly (42) and the lower air blowing assembly (43) through corresponding pipes.

7. The vertical track heat shrink tubing baking machine according to claim 6, characterized in that: The upper air blowing assembly (42) includes an upper air supply block (421) and a fixing plate (422) disposed on the upper and lower end faces of the upper air supply block (421); an air cavity A (4211) is formed inside the upper air supply block (421), and an upper baffle (423) is provided at the opening of the air cavity A (4211), and an upper air blowing port (4231) is provided on the upper baffle (423); at least one set of upper air blowing ports communicating with the air cavity A (4211) is provided on the rear end face of the upper air supply block (421). An air supply hole (4212) and an air outlet hole (4213) communicating with the air cavity A (4211) are respectively provided on the upper and lower end faces of the upper air supply block (421). A clearance groove (4214) is provided around the outer opening of the air outlet hole (4213). The clearance groove (4214) is communicating with the front end face of the upper air supply block (421). When the fixing plate (422) is installed, an air outlet is formed on the front side of the upper and lower end faces of the upper air supply block (421).

8. The vertical track heat shrink tubing baking machine according to claim 6, characterized in that: The down-blowing assembly (43) includes a down-blowing block (431), a wind cavity B (4311) is formed inside the down-blowing block (431), and a down baffle (432) is provided at the opening of the wind cavity B (4311). A down-blowing port (4321) is provided on the down-blowing block (432), and at least one set of down-blowing holes (4312) communicating with the wind cavity B (4311) is provided on the rear end face of the down-blowing block (431). A base plate (433) is provided at the lower end of the down-blowing block (431), and a through hole (4331) corresponding to the down-blowing hole (4312) is provided in the base plate (433).

9. The vertical track heat shrink tubing baking machine according to claim 1, characterized in that: It also includes a heat dissipation and ventilation system (6), which includes a duct (61) and an exhaust fan (62), with the exhaust fan (62) located at the air outlet of the duct (61).

10. The vertical track heat shrink tubing baking machine according to claim 1, characterized in that: The feeding area (11) is provided with a dial (111) and a pair of control blocks (112) adapted to the dial (111). The position of the pair of control blocks (112) on the feeding area (11) can be adjusted.

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