Automobile tailgate cover plate mold

Abstract

The utility model relates to injection mold technical field discloses automobile tail door cover plate mould, including the bottom plate, the top fixedly connected with two groups of square iron of bottom plate, the top fixedly connected with the lower mould shell of square iron, the top fixedly connected with the lower mould plate of bottom plate, the inside temperature control assembly of being convenient for adjusting of lower mould shell is provided with. This automobile tail door cover plate mould is provided with micro pump, water inlet pipe, water inlet, water outlet, copper coil pipe, electric heating sheet, inner cavity, lower mould plate and heat conducting block, when using, electric heating sheet connects electricity and generates heat, and the heat is transmitted to the lower mould plate through the heat conducting block, makes it preheats, and the electric heating sheet stops heating after injection, and micro pump continuously pumps in the cold water to the copper coil pipe inside through the water inlet pipe and the water inlet, and the temperature inside the inner cavity reduces quickly, has realized the function that is convenient for adjusting temperature control, solves the problem that the device does not have the function that is convenient for adjusting temperature control.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a car tailgate cover mold. Background Technology

[0002] The tailgate cover is a common automotive accessory. The tailgate is the door on the rear of an SUV or hatchback, and it is one of the most important external coverings, as well as a key component affecting the overall appearance quality of the vehicle. Like the trunk lid, the tailgate must have dustproof and waterproof functions, and its structure is basically the same.

[0003] As an independent system assembly within the car body, the tailgate structure generally consists of three main parts: the tailgate body, tailgate accessories, and the tailgate interior and exterior trim. The tailgate cover, a type of tailgate interior trim, is used to conceal and protect the wiring within the tailgate and is typically molded as a single piece using injection molding. Currently, common automotive tailgate cover molds on the market are quite similar in overall structure, belonging to conventional injection molds. They consist of upper and lower molds; after the upper and lower molds are closed, injection molding occurs from the sprue at the top of the upper mold, and the mold is formed after cooling. However, in practical use, there are some functional shortcomings and room for improvement. For example, the mold temperature is uncontrollable. During prolonged production, the injection mold itself reaches a high temperature, which affects the cooling of the workpiece. Current solutions involve adding a fan at the mold opening for cooling, but this is relatively slow, and there is room for further improvement in cooling efficiency. Additionally, preheating is required before injection molding to prevent premature solidification of the liquid plastic due to low temperatures. Temperature control is difficult to maintain and lacks easily adjustable temperature control functionality.

[0004] Now, a new type of automobile tailgate cover mold is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a mold for automobile tailgate covers to solve the problem mentioned in the background art of not having a function for easy temperature adjustment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a car tailgate cover mold, including a base plate, two sets of square irons fixedly connected to the top of the base plate, a lower mold shell fixedly connected to the top of the square irons, an ejector base plate provided below the lower mold shell, an ejector panel provided at the top of the ejector base plate, a top plate provided above the base plate, an upper mold fixing plate fixedly connected to the bottom of the top plate, limit rods fixedly connected to the four corners at the bottom of the upper mold fixing plate, a lower template fixedly connected to the top of the base plate, a heat-conducting block fixedly connected to the bottom of the lower template, a PLC controller fixedly connected to the front end of the lower mold shell, an infrared temperature sensor installed at the rear end of the PLC controller, and a temperature control component for easy temperature adjustment provided inside the lower mold shell.

[0007] The temperature control component includes an inner cavity, which is located inside the top of the base plate. Heating elements are fixedly connected to both sides of the bottom of the inner cavity. A copper coil is fixedly connected to the inner wall of the inner cavity. A water outlet is provided at the top left side of the copper coil, and a water inlet is provided at the bottom left side of the copper coil. A micro pump is installed on the left side of the top of the base plate.

[0008] As a further technical solution of this utility model, the inlet, outlet and copper coil are internally connected, and the copper coil and the heat-conducting block are externally attached.

[0009] As a further technical solution of this utility model, an inlet pipe is fixedly connected between the micro pump and the inlet, and the micro pump, the inlet pipe, and the inlet are internally connected.

[0010] As a further technical solution of this utility model, the top end of the heating element and the bottom end of the heat-conducting block are attached to each other, and the micro pump, the heating element, and the PLC controller are electrically connected.

[0011] As a further technical solution of this utility model, two sets of countersunk screw grooves are respectively opened on both sides of the top of the lower template, two sets of fixing screw holes are respectively opened on both sides of the top of the lower mold shell, an upper template is provided at the bottom of the upper mold fixing plate, corner fixing blocks are respectively welded to the front and rear ends of the top of the upper template, two sets of mounting bolts are longitudinally inserted into the inside of the corner fixing blocks, two sets of positioning grooves are respectively opened at the front and rear ends of the upper mold fixing plate, and reserved grooves are respectively opened at the four corners of the top of the upper template.

[0012] As a further technical solution of this utility model, the countersunk screw groove and the fixed screw eye are in one-to-one correspondence in position and size, and the front and rear ends and left and right sides of the lower mold shell and the lower template are flush.

[0013] As a further technical solution of this utility model, the positions and dimensions of the corner fixing block and the positioning groove correspond one-to-one, and the mounting bolt passes through the corner fixing block and extends into the interior of the upper mold fixing plate.

[0014] As a further technical solution of this utility model, the infrared temperature sensor penetrates the front end of the lower mold shell and extends into the interior of the inner cavity, and the PLC controller and the infrared temperature sensor are electrically connected.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the automobile tailgate cover mold not only realizes the function of easy temperature adjustment and control, and the function of replaceable mold core, but also realizes the function of internal temperature feedback.

[0016] (1) By setting up a micro pump, water inlet pipe, water outlet, copper coil, electric heating element, inner cavity, lower template and heat conduction block, when in use, the lower mold shell and upper mold fixing plate are close together, so that the lower template and upper template are tightly fitted. Liquid plastic is injected from the water outlet at the top of the top plate and quickly fills the cavity of the mold to form a shape. Before injection molding, the lower template is preheated. The electric heating element is connected to the power source and heats up. The heat is transferred to the lower template through the heat conduction block to preheat it in advance. After injection molding, the electric heating element stops heating. At the same time, the micro pump continuously pumps cold water into the copper coil through the water inlet pipe and water outlet. The temperature inside the inner cavity drops rapidly. The low temperature is transferred to the lower template through the heat conduction block to accelerate the cooling of the workpiece. Since the tailgate cover itself is relatively thin, the production efficiency of the tailgate cover is greatly improved after accelerated cooling, and the function of easy temperature control is realized.

[0017] (2) By setting countersunk screw grooves, fixing screw holes, upper template, corner fixing blocks, mounting bolts, positioning grooves, top plate, upper mold fixing plate, limit rods and reserved grooves, when in use, the lower template and the lower mold shell are connected by four sets of countersunk bolts. The countersunk screw grooves and fixing screw holes reserve positions for the bolts to be driven in, and can be directly replaced. The upper template and the upper mold fixing plate are assembled by corner fixing blocks, mounting bolts and positioning grooves. The upper template can be replaced by removing the mounting bolts, thus realizing the function of replaceable mold core;

[0018] (3) By setting up a PLC controller and an infrared temperature sensor, when in use, the infrared rays emitted by the infrared temperature sensor pass through the gap of the copper coil and fall on the heat conduction block, which monitors the temperature of the heat conduction block in real time and feeds the value back to the display screen of the PLC controller for easy reference by the staff, thus realizing the function of internal temperature feedback. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present utility model;

[0020] Figure 2 This is a top view of a partial cross-sectional structure of the lower mold shell of this utility model;

[0021] Figure 3 This is a front view schematic diagram of the copper coil structure of this utility model;

[0022] Figure 4 This is a top view schematic diagram of the lower template structure of this utility model.

[0023] Figure 5 This is a front view structural diagram of the lower template of this utility model.

[0024] Figure 6 This is a front view structural diagram of the upper mold fixing plate of this utility model;

[0025] Figure 7This is a top view of the upper template structure of this utility model.

[0026] In the diagram: 1. Base plate; 2. Square iron; 3. Ejector pin base plate; 4. Ejector pin panel; 5. Lower mold shell; 6. Micro pump; 7. Water inlet pipe; 8. Water inlet; 9. Water outlet; 10. Copper coil; 11. Heating element; 12. Inner cavity; 13. Lower mold plate; 14. Heat-conducting block; 15. Countersunk screw groove; 16. Fixing screw eye; 17. Upper mold plate; 18. Corner fixing block; 19. Mounting bolt; 20. Positioning groove; 21. Top plate; 22. Upper mold fixing plate; 23. Limiting rod; 24. Reserved groove; 25. PLC controller; 26. Infrared temperature sensor. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-7 A car tailgate cover mold includes a base plate 1, two sets of square irons 2 are fixedly connected to the top of the base plate 1, a lower mold shell 5 is fixedly connected to the top of the square irons 2, an ejector base plate 3 is provided below the lower mold shell 5, an ejector panel 4 is provided at the top of the ejector base plate 3, a top plate 21 is provided above the base plate 1, an upper mold fixing plate 22 is fixedly connected to the bottom of the top plate 21, limit rods 23 are fixedly connected to the four corners at the bottom of the upper mold fixing plate 22, a lower template 13 is fixedly connected to the top of the base plate 1, a heat conducting block 14 is fixedly connected to the bottom of the lower template 13, a PLC controller 25 is fixedly connected to the front end of the lower mold shell 5, an infrared temperature sensor 26 is installed at the rear end of the PLC controller 25, and a temperature control component for easy temperature adjustment is provided inside the lower mold shell 5.

[0029] Please see Figure 1-7 The tailgate mold also includes a temperature control component, which includes an inner cavity 12. The inner cavity 12 is located inside the top of the base plate 1. Heating elements 11 are fixedly connected to both sides of the bottom of the inner cavity 12. A copper coil 10 is fixedly connected to the inner wall of the inner cavity 12. A water outlet 9 is provided at the top left side of the copper coil 10, and a water inlet 8 is provided at the bottom left side of the copper coil 10. A micro pump 6 is installed on the left side of the top of the base plate 1.

[0030] The inlet 8, outlet 9, and copper coil 10 are internally connected. The copper coil 10 and the heat-conducting block 14 are externally attached. The micro pump 6 and the inlet 8 are fixedly connected by an inlet pipe 7. The micro pump 6, the inlet pipe 7, and the inlet 8 are internally connected. The top of the heating element 11 and the bottom of the heat-conducting block 14 are attached. The micro pump 6, the heating element 11, and the PLC controller 25 are electrically connected to facilitate temperature control.

[0031] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the lower mold plate 13 is preheated before injection molding. The heating element 11 is connected to electricity and heats up. The heat is transferred to the lower mold plate 13 through the heat conduction block 14 to preheat it in advance. After injection molding, the heating element 11 stops heating. At the same time, the micro pump 6 continuously pumps cold water into the copper coil 10 through the water inlet pipe 7 and the water inlet 8. The temperature inside the inner cavity 12 drops rapidly. The low temperature is transferred to the lower mold plate 13 through the heat conduction block 14 to accelerate the cooling of the workpiece. Since the tailgate cover itself is relatively thin, the production efficiency of the tailgate cover is greatly improved after accelerated cooling.

[0032] Two sets of countersunk screw grooves 15 are respectively opened on both sides of the top of the lower template 13, and two sets of fixing screw holes 16 are respectively opened on both sides of the top of the lower mold shell 5. The bottom end of the upper mold fixing plate 22 is provided with an upper template 17. The front and rear ends of the top of the upper template 17 are respectively welded with corner fixing blocks 18. Two sets of mounting bolts 19 are longitudinally inserted into the inside of the corner fixing blocks 18. Two sets of positioning grooves 20 are respectively opened on the front and rear ends of the upper mold fixing plate 22. The four corners of the top of the upper template 17 are respectively provided with reserved grooves 24. The position and size of the countersunk screw grooves 15 and the fixing screw holes 16 are one-to-one. The front and rear ends and the left and right sides of the lower mold shell 5 and the lower template 13 are flush. The position and size of the corner fixing blocks 18 and the positioning grooves 20 are one-to-one. The mounting bolts 19 pass through the corner fixing blocks 18 and extend into the inside of the upper mold fixing plate 22, which facilitates the replacement of the mold core template.

[0033] Specifically, such as Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 7 As shown, the lower template 13 and the lower mold shell 5 are connected by four sets of countersunk bolts. The countersunk bolt groove 15 and the fixing bolt eye 16 provide positions for the bolts to be driven in, so they can be directly replaced. The upper template 17 and the upper mold fixing plate 22 are assembled by the corner fixing block 18, the mounting bolt 19 and the positioning groove 20. The upper template 17 can be replaced by removing the mounting bolt 19.

[0034] The infrared temperature sensor 26 passes through the front end of the lower mold shell 5 and extends into the interior of the inner cavity 12. The PLC controller 25 and the infrared temperature sensor 26 are electrically connected to facilitate temperature monitoring.

[0035] Specifically, such as Figure 1 and Figure 2 As shown, the infrared rays emitted by the infrared temperature sensor 26 pass through the gaps in the copper coil 10 and fall onto the heat-conducting block 14, thereby monitoring the temperature of the heat-conducting block 14 in real time and feeding back the values ​​to the display screen of the PLC controller 25 for easy reference by the staff.

[0036] Working principle: When using this utility model, firstly, the lower mold shell 5 and the upper mold fixing plate 22 are fitted together, so that the lower mold plate 13 and the upper mold plate 17 are tightly fitted. Liquid plastic is injected from the sprue at the top of the top plate 21 and quickly fills the cavity of the mold to form a shape. Before injection molding, the lower mold plate 13 is preheated. The heating element 11 is connected to electricity and heats up. The heat is transferred to the lower mold plate 13 through the heat conduction block 14 to preheat it. After injection molding, the heating element 11 stops heating. At the same time, the micro pump 6 continuously pumps cold water into the copper coil 10 through the water inlet pipe 7 and the water inlet 8. The temperature inside the inner cavity 12 drops rapidly. The low temperature is transferred to the lower mold plate 13 through the heat conduction block 14 to accelerate the cooling of the workpiece. Since the tailgate cover itself is relatively thin, the production efficiency of the tailgate cover is greatly improved after accelerated cooling. The lower template 13 and the lower mold shell 5 are connected by four sets of countersunk bolts. The countersunk bolt grooves 15 and fixing bolt holes 16 provide positions for the bolts to be driven in, allowing for direct replacement. The upper template 17 and the upper mold fixing plate 22 are assembled by corner fixing blocks 18, mounting bolts 19, and positioning grooves 20. The upper template 17 can be replaced by removing the mounting bolts 19. The infrared rays emitted by the infrared temperature sensor 26 pass through the gaps in the copper coil 10 and fall on the heat-conducting block 14, monitoring the temperature of the heat-conducting block 14 in real time and feeding back the values ​​to the display screen of the PLC controller 25 for easy reference by the staff.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tailgate cover mold for automobiles, comprising a base plate (1), characterized in that: Two sets of square irons (2) are fixedly connected to the top of the base plate (1). A lower mold shell (5) is fixedly connected to the top of the square irons (2). A ejector base plate (3) is provided below the lower mold shell (5). An ejector panel (4) is provided at the top of the ejector base plate (3). A top plate (21) is provided above the base plate (1). An upper mold fixing plate (22) is fixedly connected to the bottom of the top plate (21). Limit rods (23) are fixedly connected to the four corners at the bottom of the upper mold fixing plate (22). A lower template (13) is fixedly connected to the top of the base plate (1). A heat-conducting block (14) is fixedly connected to the bottom of the lower template (13). A PLC controller (25) is fixedly connected to the front end of the lower mold shell (5). An infrared temperature sensor (26) is installed at the rear end of the PLC controller (25). A temperature control component that facilitates temperature adjustment is provided inside the lower mold shell (5). The temperature control component includes an inner cavity (12), which is located inside the top of the base plate (1). Heating elements (11) are fixedly connected to both sides of the bottom of the inner cavity (12). A copper coil (10) is fixedly connected to the inner wall of the inner cavity (12). A water outlet (9) is provided at the top left side of the copper coil (10), and a water inlet (8) is provided at the bottom left side of the copper coil (10). A micro pump (6) is installed on the left side of the top of the base plate (1).

2. The automotive tailgate cover panel mold of claim 1, wherein: The inlet (8), outlet (9), and copper coil (10) are internally connected, and the copper coil (10) and the heat-conducting block (14) are externally attached.

3. The automotive tailgate cover mold of claim 1, wherein: A water inlet pipe (7) is fixedly connected between the micro pump (6) and the water inlet (8), and the micro pump (6), the water inlet pipe (7), and the water inlet (8) are internally connected.

4. The automotive tailgate cover panel mold of claim 1, wherein: The top of the heating element (11) and the bottom of the heat-conducting block (14) are attached to each other, and the micro pump (6), the heating element (11), and the PLC controller (25) are electrically connected.

5. The automotive tailgate cover panel mold of claim 1, wherein: Two sets of countersunk screw grooves (15) are respectively opened on both sides of the top of the lower template (13), two sets of fixing screw holes (16) are respectively opened on both sides of the top of the lower mold shell (5), an upper template (17) is provided at the bottom of the upper mold fixing plate (22), corner fixing blocks (18) are respectively welded to the front and rear ends of the top of the upper template (17), two sets of mounting bolts (19) are longitudinally inserted into the inside of the corner fixing block (18), two sets of positioning grooves (20) are respectively opened at the front and rear ends of the upper mold fixing plate (22), and reserved grooves (24) are respectively opened at the four corners of the top of the upper template (17).

6. The automotive tailgate cover panel mold of claim 5, wherein: The countersunk screw groove (15) and the fixed screw eye (16) are in one-to-one correspondence in position and size, and the front and rear ends and left and right sides of the lower mold shell (5) and the lower template (13) are flush.

7. The automotive tailgate cover mold of claim 5, wherein: The corner fixing block (18) and the positioning groove (20) are in a one-to-one correspondence in position and size. The mounting bolt (19) passes through the corner fixing block (18) and extends into the interior of the upper mold fixing plate (22).

8. The automotive tailgate cover panel mold of claim 1, wherein: The infrared temperature sensor (26) penetrates the front end of the lower mold shell (5) and extends into the inside of the inner cavity (12), and the PLC controller (25) and the infrared temperature sensor (26) are electrically connected.

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