Temperature control device for a thermoforming apparatus

Abstract

The present application relates to the technical field of hot forming equipment, in particular to a temperature control device of hot forming equipment, which comprises a water collecting pool, a spraying tower is arranged on the upper side of the water collecting pool, a water outlet pipe is installed on one side of the water collecting pool, a tee pipe is installed on the end of the water outlet pipe away from the water collecting pool, a switching valve is installed on each end of the tee pipe away from the water outlet pipe, a circulating pump is connected to the end of the switching valve away from the tee pipe through a check valve, a stop valve is installed on the outlet end of the circulating pump, the two stop valves connected to the two circulating pumps are connected through a communication pipe, the communication pipe is connected with a water delivery pipe through a branch pipe, two gate chambers are installed on the outer surface of the water delivery pipe, a strip-shaped opening is formed on the opposite surface of each of the two gate chambers, a gate plate for separating the internal space of the gate chamber is inserted into each of the two strip-shaped openings, and a linkage is installed between the two gate plates, the present application has the following beneficial effects: stepless control of the cooling water flow is realized, and the temperature control precision of the mold is improved.

Description

Technical Field

[0001] This invention relates to the field of thermoforming equipment technology, specifically a temperature control device for thermoforming equipment. Background Technology

[0002] In the production process of thermoforming molds, the cooling tower, through a circulating water system, cools the mold and is a key facility for ensuring stable mold temperature and the quality of the molded product. Its core working logic is as follows: the circulating pump delivers the cooled water from the cooling tower to the cooling channel of the thermoforming mold. After absorbing the heat generated by the mold during the thermoforming process, the water carries the heat back to the cooling tower. After being cooled by heat exchange (air and water contact for heat dissipation) within the tower, it is delivered to the mold again by the circulating pump, forming a closed loop. By continuously removing heat, the mold temperature is controlled.

[0003] Existing cooling systems have significant shortcomings in adapting to the dynamic temperature control requirements of thermoforming molds. The core issue lies in the inability to flexibly adjust the circulating water flow rate according to the mold's cooling needs. The circulating pump, as the power source for water delivery, has a fixed power, meaning the amount of cooling water pumped per unit time is relatively constant and cannot adapt to the real-time cooling requirements of the mold. In thermoforming production, mold temperature fluctuates dynamically depending on the material, thickness, and production cycle of the molded product. For example, when processing thick-walled plastic parts, the mold generates more heat per unit time, requiring a larger flow rate of cooling water to quickly remove the heat; conversely, when processing thin-walled parts, the mold generates less heat, requiring a reduced cooling water flow to prevent excessively low mold temperatures that could lead to poor product molding. Fixed-power circulating pumps cannot meet this dynamic demand: when the mold needs rapid cooling, the constant flow of cooling water cannot efficiently remove excess heat, causing the mold temperature to remain high. This not only prolongs the molding cycle but may also cause defects such as shrinkage marks and deformation in the product. When the mold needs to maintain a low cooling rate, excessive cooling water will continuously remove heat, resulting in an excessively low mold temperature. This affects the flow and solidification of the plastic melt, leading to problems such as missing material at the edges and corners and obvious weld lines. This mismatch between flow rate and demand directly results in poor temperature control accuracy and insufficient stability of thermoforming molds, making it difficult to meet the high-quality molding requirements of products of different specifications. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a temperature control device for thermoforming equipment to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a temperature control device for a thermoforming equipment, comprising a water collection tank, a spray tower mounted on the upper side of the water collection tank, a water outlet pipe installed on one side of the water collection tank, a tee pipe installed at the end of the water outlet pipe away from the water collection tank, switching valves installed at both ends of the tee pipe away from the water outlet pipe, a circulation pump connected to the end of the switching valve away from the tee pipe via a check valve, a shut-off valve installed at the outlet end of the circulation pump, two shut-off valves connected to the two circulation pumps being connected via a connecting pipe, a water supply pipe connected via a branch pipe, two gate chambers connected via the water supply pipe, each gate chamber having a slotted opening on its opposite side, a gate plate for separating the internal space of the gate chamber being inserted into each of the slotted openings, a linkage component installed between the two gate plates, one gate chamber being connected to the spray tower via a return pipe, and the other gate chamber being connected to the water inlet of the thermoforming mold via a cold water pipe, and a return pipe for connecting the water outlet of the thermoforming mold being installed on one side of the spray tower. Spray towers typically spray hot water from top to bottom to cool it, often in conjunction with fans to accelerate the cooling process.

[0006] Specifically, the linkage includes a triangular block, which is installed between the two gates. One side of the triangular block is machined with a first inclined surface, and a top block is attached to the first inclined surface. One side of the top block is machined with a second inclined surface, and the first inclined surface and the second inclined surface are in sliding contact. A driving component for driving the top block to move up and down is rotatably installed on the lower surface of the top block.

[0007] Specifically, a connecting rod is installed between the two gates, and a U-shaped frame is fitted on the connecting rod. Both ends of the U-shaped frame are connected to triangular blocks, and the connecting rod is connected to the U-shaped frame by screws.

[0008] Specifically, the driving component includes a screw, which is rotatably mounted on the lower surface of the top block. An L-shaped frame is provided on one side of the top block. A threaded hole is opened on the horizontal part of the L-shaped frame, and the screw is threaded into the threaded hole. A handle rod is inserted into a shaft hole at the lower part of the outer surface of the screw. Two horizontally arranged tubes are installed on the vertical part of the L-shaped frame. A telescopic rod is inserted into the tube. One end of the telescopic rod on the outside of the tube is connected to a triangular block. A compression spring is sleeved on the structure formed by the telescopic rod and the tube. The two ends of the compression spring are in contact with the L-shaped frame and the triangular block, respectively.

[0009] Specifically, a cover is installed on the vertical part of the L-shaped frame away from the tube. Two connecting holes are opened in the area of ​​the vertical part of the L-shaped frame covered by the cover. The connecting holes communicate with the internal space of the cover and the corresponding internal space of the tube. A piston is installed at one end of the telescopic rod inside the tube. The piston is slidably installed inside the tube. A vertical hole is opened on the horizontal part of the L-shaped frame. A vertical tube is installed in the vertical hole. A bent tube is installed at the lower part of the vertical tube. The end of the bent tube away from the vertical tube is connected to the cover. A rubber plug is slidably installed inside the vertical tube. A top rod is installed at the middle of the upper surface of the rubber plug. A support plate is fixedly connected to the upper end of the top rod. An arc plate is installed at the end of the support plate away from the top rod. The arc plate wraps around the screw rod. The arc plate is located on the side of the screw rod away from the vertical part of the L-shaped frame.

[0010] Specifically, a positioning seat is installed at the top of the vertical part of the L-shaped frame. The upper surface of the positioning seat has multiple fixing holes. A reinforcing rib is installed on the lower surface of the positioning seat near the L-shaped frame. The end of the reinforcing rib away from the positioning seat is connected and fixed to the L-shaped frame.

[0011] Specifically, the gate chamber has a rectangular cross-section, and the side of the gate chamber facing the water supply pipe is open. A chamber cover is installed at the open end of the gate chamber, and a pipe joint is installed in a circular opening on one side of the chamber cover. The end of the pipe joint away from the chamber cover is connected to the water supply pipe.

[0012] Specifically, a support frame is provided on the outside of the strip-shaped opening. One end of the support frame is connected and fixed to the gate chamber. A sealing sleeve is glued inside the support frame and the sealing sleeve is wrapped around the gate plate.

[0013] Specifically, a bottom frame is installed at the bottom of the water collection tank, a bracket is installed at the bottom of the bottom frame, and multiple support rods for supporting the spray tower are evenly installed between the water collection tank and the spray tower.

[0014] Specifically, the top of the spray tower is provided with a ventilation opening, and a ring for supporting the fan is provided on the upper side of the ventilation opening, which is concentrically arranged with the ventilation opening.

[0015] The beneficial effects of this invention are:

[0016] Rotating the screw of the drive unit can drive the top block to move up and down. The second inclined surface of the top block slides into contact with the first inclined surface of the triangular block, pushing the triangular block to move laterally, which in turn drives the two gates to slide in opposite directions synchronously. One gate opens to increase the water flow channel of the cold water pipe, while the other gate closes to decrease the water flow channel of the return pipe, or vice versa. Compared with the crude method of relying solely on the pump body for adjustment, stepless control of the cooling water flow is achieved, improving the temperature control accuracy of the mold.

[0017] When the screw is turned, the screw drives the top block to move up and down, which in turn moves the triangular block laterally. Combined with the rebound force of the compression spring, the triangular block moves laterally stably. The telescopic rod and the tube work together to support the compression spring. After the compression spring is compressed, the fluid medium in the tube enters and exits the casing through the connecting hole under the action of the piston. Since the casing is connected to the vertical cylinder through the bend, the rubber plug moves up and down in the vertical cylinder. As a result, the rubber plug drives the arc plate to move up and down along the screw through the top rod. At this time, the arc plate and other components work together to support the screw, reduce the impact of the rebound force of the compression spring on the screw, and protect the screw. Attached Figure Description

[0018] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the temperature control device for a thermoforming equipment according to the present invention;

[0020] Figure 2 This is a perspective view of a temperature control device for a thermoforming equipment according to the present invention;

[0021] Figure 3 This is another perspective view of the temperature control device of a thermoforming equipment according to the present invention;

[0022] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 This is a schematic diagram of the assembly of the triangular block, L-shaped frame, gate, gate chamber and water supply pipe in the temperature control device of a thermoforming equipment according to the present invention;

[0024] Figure 6 for Figure 5 Enlarged view at point B;

[0025] Figure 7 This is an exploded structural diagram of the triangular block, L-shaped frame, gate plate, gate chamber, and water supply pipe in the temperature control device of a thermoforming equipment according to the present invention.

[0026] Figure 8 This is an exploded view of the triangular block, L-shaped frame, gate, gate chamber, and water pipe in the temperature control device of a thermoforming equipment according to the present invention.

[0027] In the diagram: 100, water collection tank; 101, support rod; 102, spray tower; 1021, ring; 1022, return water pipe; 103, base frame; 1031, bracket; 200, outlet pipe; 201, tee pipe; 2011, switching valve; 2012, check valve; 202, circulating pump; 2021, shut-off valve; 2022, connecting pipe; 203, water supply pipe; 204, branch pipe; 300, gate chamber; 301, pipe joint; 302, return pipe; 303, cold water pipe; 304, L-shaped frame; 3041, positioning seat; 3042, reinforcing rib plate; 3043, fixing hole; 3044. Connecting hole; 305. Chamber cover; 306. Support frame; 3061. Sealing sleeve; 400. Gate; 401. Connecting rod; 4011. U-shaped frame; 4012. Screw; 500. Triangular block; 501. Top block; 5011. Second inclined plane; 502. Screw; 5021. Handle rod; 503. First inclined plane; 600. Compression spring; 601. Telescopic rod; 6011. Piston; 602. Tube; 700. Cover; 701. Bend; 702. Vertical tube; 703. Arc plate; 7031. Support plate; 7032. Top rod; 7033. Rubber stopper. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0029] Please see Figures 1-8 This invention provides a technical solution: a temperature control device for a thermoforming equipment, including a water collection tank 100, a bottom frame 103 installed at the bottom of the water collection tank 100, and a bracket 1031 installed at the bottom of the bottom frame 103. The structure formed by the bracket 1031 and the bottom frame 103 supports the water collection tank 100. A spray tower 102 is provided on the upper side of the water collection tank 100, wherein a plurality of support rods 101 for supporting the spray tower 102 are evenly installed between the water collection tank 100 and the spray tower 102, and a side of the spray tower 102 is equipped with... The return water pipe 1022 is used to connect the outlet of the thermoforming mold. The support rod 101 connects the spray tower 102 and the water collection tank 100. The top of the spray tower 102 is provided with a vent. On the upper side of the vent, there is a ring 1021 arranged concentrically with the vent to support the fan. After the cooling water flows into the spray tower 102, the vent at the top of the spray tower 102 and the fan supported by the ring 1021 can accelerate the heat dissipation of the water and ensure that the temperature of the return cooling water drops to a suitable range, thus providing a guarantee for recycling.

[0030] A water outlet pipe 200 is installed on one side of the water collection tank 100. A three-way pipe 201 is installed at the end of the water outlet pipe 200 away from the water collection tank 100. Switching valves 2011 are installed at both ends of the three-way pipe 201 away from the water outlet pipe 200. A circulation pump 202 is connected to the end of the switching valve 2011 away from the three-way pipe 201 through a check valve 2012. A shut-off valve 2021 is installed at the outlet end of the circulation pump 202. The two shut-off valves 2021 connected to the two circulation pumps 202 are connected to each other through a connecting pipe 2022. The connecting pipe 2022 is connected to a water delivery pipe 203 through a branch pipe 204. The check valve 2012 at the inlet of the circulating pump 202 prevents the cooling water from flowing backward, avoiding backflow caused by the shutdown of the circulating pump 202 or pressure fluctuations, and ensuring a stable water supply direction. The shut-off valve 2021 at the outlet of the circulating pump 202 can close another channel when a single pump is running, preventing water diversion and ensuring an effective water supply. The shut-off valve 2021 and the switching valve 2011 work together to avoid flow fluctuations caused by water turbulence, ensuring a stable amount of cooling water flowing to the mold and providing a stable water flow basis for mold temperature control.

[0031] Two gate chambers 300 are installed on the outer surface of the water supply pipe 203. Each gate chamber 300 has a rectangular cross-section and an open side facing the water supply pipe 203. A cover 305 is installed at the open end of each gate chamber 300. A circular opening is formed on one side of the cover 305, and a pipe connector 301 is installed inside this opening. The end of the pipe connector 301 away from the cover 305 is connected to the water supply pipe 203. The structure formed by the pipe connector 301 and the cover 305 enables communication between the gate chambers 300 and the water supply pipe 203. The connection is as follows: Two gate chambers 300 have strip-shaped openings on their opposite sides, and gate plates 400 for separating the internal space of each gate chamber 300 are installed in each of the two strip-shaped openings; a support frame 306 is provided on the outside of the strip-shaped openings, one end of the support frame 306 is connected and fixed to the gate chamber 300, and a sealing sleeve 3061 is glued inside the support frame 306. The sealing sleeve 3061 wraps around the gate plate 400, improving the sealing between the gate plate 400 and the strip-shaped openings and preventing cooling water leakage.

[0032] One gate chamber 300 is connected to the spray tower 102 via a return pipe 302, and the other gate chamber 300 is connected to the inlet of the thermoforming mold via a cold water pipe 303. A triangular block 500 is installed between the two gate plates 400, and a connecting rod 401 is installed between the two gate plates 400. A U-shaped frame 4011 is fitted on the connecting rod 401, and both ends of the U-shaped frame 4011 are connected to the triangular block 500. The connecting rod 401 is connected to the U-shaped frame 4011 via screws 4012, so that the relative positions of the two gate plates 400 and the triangular block 500 remain unchanged.

[0033] A triangular block 500 has a first inclined surface 503 machined on one side, and a top block 501 is attached to the first inclined surface 503. A second inclined surface 5011 is machined on one side of the top block 501, and the first inclined surface 503 and the second inclined surface 5011 are in sliding contact. A screw 502 is rotatably mounted on the lower surface of the top block 501. An L-shaped bracket 304 is provided on one side of the top block 501. A threaded hole is opened in the horizontal part of the L-shaped bracket 304, and the screw 502 is threaded into the threaded hole. A shaft hole is opened at the lower part of the outer surface of the screw 502, and a handle rod 5021 is inserted into the shaft hole. A positioning seat 3041 is installed at the top of the vertical part of the frame 304. The upper surface of the positioning seat 3041 has multiple fixing holes 3043. A reinforcing rib plate 3042 is installed on the lower surface of the positioning seat 3041 near the L-shaped frame 304. The end of the reinforcing rib plate 3042 away from the positioning seat 3041 is connected and fixed to the L-shaped frame 304. The reinforcing rib plate 3042 improves the mechanical strength of the connection between the positioning seat 3041 and the L-shaped frame 304. The positioning seat 3041 is installed at the required position using bolts to limit the position of the L-shaped frame 304.

[0034] Rotating the screw 502 causes the top block 501 to move up and down. The second inclined surface 5011 of the top block 501 slides into contact with the first inclined surface 503 of the triangular block 500, pushing the triangular block 500 to move laterally. This, in turn, causes the two gates 400 to slide synchronously in opposite directions. One gate 400 opens to increase the water flow channel of the cooling water pipe 303, while the other gate 400 closes to decrease the water flow channel of the return pipe 302, or vice versa. This fine-tuning method can control the amount of cooling water flowing to the mold. For example, when the mold temperature is slightly higher than the target value, the fine-tuning gate 400 slightly increases the flow rate of the cooling water pipe 303 to quickly remove excess heat; when the temperature is close to the target value, the flow rate of the cooling water pipe 303 is reduced to maintain a stable temperature. Compared to the crude method of relying solely on the circulation pump 202 for regulation, this method achieves stepless control of the cooling water flow, improves the accuracy of mold temperature control, and allows cooling water that does not flow to the mold to return to the spray tower 102 through the return pipe 302. After being cooled by the spray tower 102, it flows back into the collection tank 100 to participate in the next cycle, avoiding the waste of water resources caused by direct discharge of cooling water. The vents and fans at the top of the spray tower 102 can accelerate the cooling of the water, ensuring that the temperature of the return cooling water drops to a suitable range, providing a guarantee for recycling. This closed-loop design reduces water consumption and wastewater discharge, meeting the requirements of energy conservation and environmental protection.

[0035] The vertical part of the L-shaped frame 304 is equipped with two horizontally arranged tubes 602. A telescopic rod 601 is inserted inside each tube 602, with one end of the telescopic rod 601 on the outside of the tube 602 connected to a triangular block 500. A compression spring 600 is fitted onto the structure formed by the telescopic rod 601 and the tube 602, with both ends of the compression spring 600 contacting the L-shaped frame 304 and the triangular block 500, respectively. A cover 700 is installed on the vertical part of the L-shaped frame 304 away from the tubes 602. Two connecting holes 3044 are provided in the area of ​​the vertical part of the L-shaped frame 304 covered by the cover 700. The connecting holes 3044 communicate with the internal space of the cover 700 and the corresponding internal space of the tube 602. The telescopic rod 601 is located inside the tube 602. A piston 6011 is installed at one end of the tube 602, and the piston 6011 is slidably installed inside the tube 602; a vertical hole is opened on the horizontal part of the L-shaped frame 304, and a vertical tube 702 is installed in the vertical hole. A bent tube 701 is installed at the lower part of the vertical tube 702, and the end of the bent tube 701 away from the vertical tube 702 is connected to the cover 700; a rubber plug 7033 is slidably installed inside the vertical tube 702, and a push rod 7032 is installed at the middle of the upper surface of the rubber plug 7033. A support plate 7031 is fixedly connected to the upper end of the push rod 7032, and an arc plate 703 is installed at the end of the support plate 7031 away from the push rod 7032. The arc plate 703 is wrapped around the screw 502 and is located on the side of the screw 502 away from the vertical part of the L-shaped frame 304. When screw 502 is turned, screw 502 drives top block 501 to move up and down, thereby causing triangular block 500 to move laterally. Combined with the rebound force of compression spring 600, this achieves stable lateral movement of triangular block 500. Telescopic rod 601 and tube 602 work together to support compression spring 600. After the amount of compression of compression spring 600 changes, the fluid medium inside tube 602 enters and exits the casing 700 through connecting hole 3044 under the action of piston 6011. Because casing 700 is connected to vertical tube 702 via bent pipe 701, rubber plug 7033 moves up and down inside vertical tube 702. Rubber plug 7033, through top rod 7032, drives arc plate 703 to move up and down along screw 502. At this time, arc plate 703 and other components work together to support screw 502, reducing the impact of the rebound force of compression spring 600 on screw 502 and protecting screw 502.

[0036] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A temperature control device for a thermoforming apparatus, characterized by: The utility model provides a water supply system of thermoforming die, including water collecting pool (100), the water collecting pool (100) upside is equipped with spray tower (102), the water collecting pool (100) one side is installed with water outlet pipe (200), the water outlet pipe (200) is installed with tee pipe (201) away from water collecting pool (100) one end, two ends of tee pipe (201) away from water outlet pipe (200) are installed with switch valve (2011), the switch valve (2011) is connected with circulating pump (202) through check valve (2012) away from tee pipe (201) one end, the liquid outlet of circulating pump (202) is installed with stop valve (2021), two stop valves (2021) that two circulating pumps (202) are connected are connected with the communication pipe (2022) through, the communication pipe (2022) is connected with water delivery pipe (203) through branch pipe (204), water delivery pipe (203) is connected with two gate chambers (300) with the communication, two the strip mouth of opposite surfaces of gate chamber (300) are all set up, two the gate board (400) for separating gate chamber (300) internal space are inserted in two strip mouths, the linkage is installed between two gate board (400), one gate chamber (300) is connected with the communication through backflow pipe (302) with spray tower (102), and another gate chamber (300) is connected with the water inlet of thermoforming die through cold water pipe (303), and the backwater pipe (1022) for connecting the water outlet of thermoforming die is installed in spray tower (102) one side face, the linkage includes triangular block (500), two gate board (400) between installation triangular block (500), one side of triangular block (500) is processed with first inclined plane (503), the first inclined plane (503) is pasted with top block (501), one side of top block (501) is processed with second inclined plane (5011), first inclined plane (503) and second inclined plane (5011) sliding contact, the lower surface of top block (501) is rotatably installed with the driving element for driving top block (501) moves up and down, the connecting rod (401) is installed between two gate board (400), the U-shaped frame (4011) is sleeved on connecting rod (401), both ends of U-shaped frame (4011) are connected with triangular block (500), and connecting rod (401) is connected with U-shaped frame (4011) through screw (4012).The driving member comprises a screw rod (502), the screw rod (502) is rotatably installed on the lower surface of the top block (501), one side of the top block (501) is provided with an L-shaped frame (304), a threaded hole is formed in the horizontal part of the L-shaped frame (304), the screw rod (502) is threadedly connected in the threaded hole, an axle hole is formed in the lower position of the outer surface of the screw rod (502), a handle rod (5021) is inserted in the axle hole, two horizontally arranged pipe cylinders (602) are installed on the vertical part of the L-shaped frame (304), a telescopic rod (601) is inserted in the pipe cylinder (602), one end of the telescopic rod (601) outside the pipe cylinder (602) is connected with a triangular block (500), a compression spring (600) is sleeved on the structure formed by the telescopic rod (601) and the pipe cylinder (602), and the two ends of the compression spring (600) are respectively in contact with the L-shaped frame (304) and the triangular block (500).

2. A temperature control device for a thermoforming apparatus according to claim 1, wherein: The vertical part of the L-shaped frame (304) is provided with a cover (700) on the side away from the tube (602), the area covered by the cover (700) of the vertical part of the L-shaped frame (304) is provided with two communication holes (3044), the communication holes (3044) are communicated with the inner space of the cover (700) and the inner space of the corresponding tube (602), one end of the telescopic rod (601) inside the tube (602) is provided with a piston (6011), the piston (6011) is slidingly installed in the tube (602), a vertical hole is formed in the horizontal part of the L-shaped frame (304), a vertical tube (702) is installed in the vertical hole, a bend pipe (701) is installed at the lower position in the vertical tube (702), one end of the bend pipe (701) away from the vertical tube (702) is connected and communicated with the cover (700), a rubber plug (7033) is slidingly installed in the vertical tube (702), a top rod (7032) is installed at the middle position on the upper surface of the rubber plug (7033), a support plate (7031) is fixedly connected to the upper end of the top rod (7032), an arc-shaped plate (703) is installed at the end of the support plate (7031) away from the top rod (7032), the arc-shaped plate (703) is wrapped around the screw rod (502), and the arc-shaped plate (703) is arranged on the side of the screw rod (502) away from the vertical part of the L-shaped frame (304).

3. A temperature control device for a thermoforming apparatus according to claim 2, wherein: A positioning seat (3041) is installed at the top end of the vertical part of the L-shaped frame (304), a plurality of fixing holes (3043) are formed in the upper surface of the positioning seat (3041), a reinforcing rib plate (3042) is installed on the lower surface of the positioning seat (3041) close to one side of the L-shaped frame (304), and the end of the reinforcing rib plate (3042) away from the positioning seat (3041) is fixedly connected with the L-shaped frame (304).

4. The temperature control device of a thermoforming apparatus according to claim 1, wherein: The cross section of the gate chamber (300) is rectangular, one side of the gate chamber (300) facing the water conveying pipe (203) is open, and the open end of the gate chamber (300) is provided with a chamber cover (305); one side of the chamber cover (305) is provided with a circular opening, and a pipe joint (301) is installed in the circular opening; one end of the pipe joint (301) away from the chamber cover (305) is connected and communicated with the water conveying pipe (203).

5. A temperature control device for a thermoforming apparatus as defined in claim 4, wherein: A support frame (306) is arranged outside the strip-shaped opening, one end of the support frame (306) is fixedly connected with the gate chamber (300), and a sealing sleeve (3061) is pasted in the support frame (306) by using glue; the sealing sleeve (3061) is wrapped around the gate plate (400).

6. The temperature control device of a hot forming apparatus according to claim 1, characterized by: A bottom frame (103) is installed at the bottom of the water collecting pool (100), a bracket (1031) is installed at the bottom of the bottom frame (103), and a plurality of supporting rods (101) are uniformly installed between the water collecting pool (100) and the spray tower (102) for supporting the spray tower (102).

7. A temperature control device for a thermoforming apparatus according to claim 6, wherein: A ventilation opening is formed at the top of the spray tower (102), and a ring (1021) concentrically arranged with the ventilation opening is arranged on the upper side of the ventilation opening for supporting a fan.

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