Heat treatment tool for plastic curved-surface product

Abstract

The utility model relates to the technical field of tools, in particular to a heat treatment tool for a plastic curved-surface product. According to the technical scheme, the device comprises a main body assembly, the main body assembly comprises a female die, a bottom plate, a lower die plate and a fixing plate, the lower die plate is fixedly installed at the top of the bottom plate, the female die is fixedly installed at the top of the lower die plate, and a supporting plate for supporting the fixing plate is fixedly installed at the top of the bottom plate; and the moving part comprises an air cylinder, an air cylinder connecting piece, an upper die plate and a male die, the air cylinder is fixedly installed at the top of the fixing plate, and the air cylinder connecting piece penetrating through the fixing plate is fixedly installed at the bottom of the air cylinder. According to the utility model, the cylinder is pressed downwards to push the upper template to move downwards, so that the female die and the male die are closed, a curved-surface product placed at the top of the female die is heated by the heating pipe and under the pressure action of the cylinder, the curved-surface product releases stress after heat treatment, the current warping situation is improved, and the cylinder is directly controlled to ascend and descend, so that time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling, in particular to a heat treatment tooling for plastic curved surface products. Background Art

[0002] Injection molding refers to a model with a certain shape, which is formed by injecting a molten colloid into a mold cavity through pressure. The solid plastic is melted at a certain melting point and injected into the mold at a certain speed through the pressure of the injection machine. The mold is cooled by water to solidify the plastic, and a product with the same design as the mold cavity can be obtained. In addition, some complex structures involving irregular curved surface structures can be injection molded by molds. Products after injection molding usually have certain warping deformation. The warped products are corrected by post-processing methods to meet the original design size standards, and the warping is changed by heat treatment shaping.

[0003] In the prior art, the product is placed in a jig with a heating function, an external temperature control device is connected to control the temperature, and a heavy object is used to press the product for heat treatment and shaping. However, this pretreatment jig uses a heavy object to press the product, which requires manual clamping and handling, which is cumbersome. Utility Model Content

[0004] The utility model aims to solve the problem that the method of pressing heavy objects with jigs in the background technology requires manual clamping and relatively cumbersome transportation, and proposes a heat treatment tooling for plastic curved surface products.

[0005] The technical solution of the utility model: a heat treatment tool for plastic curved surface products, comprising a main body component, wherein the main body component comprises a concave mold, a bottom plate, a lower mold plate and a fixed plate, wherein the top of the bottom plate is fixedly installed with the lower mold plate, the top of the lower mold plate is fixedly installed with the concave mold, and the top of the bottom plate is fixedly installed with a support plate for supporting the fixed plate;

[0006] A motion assembly, the motion assembly comprising a cylinder, a cylinder connector, an upper template and a punch, the cylinder is fixedly mounted on the top of the fixed plate, the cylinder connector penetrating the fixed plate is fixedly mounted on the bottom of the cylinder, the upper template is fixedly mounted on the bottom of the cylinder connector, and the punch is fixedly mounted on the bottom of the upper template;

[0007] A curved surface product is placed on the top of the concave mold, and the curved surface product is located on the moving path of the punch.

[0008] Optionally, the male mold is adapted to the shape of the curved product, and the female mold and the male mold clamp the curved product.

[0009] Optionally, a jaw structure is fixedly installed on the top of the concave die, a positioning pin is fixedly installed on the top of the concave die, a small hole is opened on the curved surface product, and the positioning pin passes through the small hole of the curved surface product.

[0010] Optionally, the device further includes a heating component, which includes a temperature sensor and a heating tube. The temperature sensor and the heating tube are fixedly installed inside the die. A PLC controller is fixedly installed on the top of the fixed plate. The PLC controller is electrically connected to the temperature sensor and the heating tube. A water outlet and a water inlet are provided on the side of the die.

[0011] Optionally, a plurality of guide pillars are fixedly mounted on the top of the lower template, and a number of ball sleeves equal to the number of the guide pillars are fixedly mounted on the bottom of the upper template, and the guide pillars slide on the inner walls of the ball sleeves.

[0012] Optionally, an upper insulation board is fixedly installed between the cylinder connecting part and the upper template, the guide column passes through the upper template and the upper insulation board, a limit plate is fixedly installed on the top of the guide column, and a lower insulation board is fixedly installed between the bottom plate and the lower template.

[0013] Optionally, an upper heat insulation plate is fixedly installed at the connection between the cylinder connecting piece and the upper template, and a lower heat insulation plate is fixedly installed between the bottom plate and the lower template.

[0014] Optionally, a mounting plate is fixedly installed on the outer side of the support plate, a safety grating is fixedly installed on the side of the mounting plate, a solenoid valve, an air switch and an AC contactor are fixedly installed on the side of the mounting plate, a start button and a reset button are provided on the side of the PLC controller, and the solenoid valve is electrically connected to the cylinder.

[0015] Compared with the prior art, the present invention has at least one of the following beneficial technical effects:

[0016] The utility model pushes the upper template downward by the downward pressure of the cylinder, so that the concave mold and the convex mold are closed. The curved surface product placed on the top of the concave mold is heated by the heating tube and under the pressure of the cylinder, the curved surface product is released from stress after heat treatment, and the current warping status is improved by directly controlling the lifting of the cylinder, which saves time and effort.

[0017] Furthermore, through the PLC controller's built-in intelligent temperature control system, you can independently program the step temperature control and adjust the heat treatment process temperature and time according to different situations.

[0018] Furthermore, through the coordination of the ball sleeve and the guide column and the use of the structural design of the jaw structure, high-precision clamping and mold closing can be achieved.

[0019] At the same time, a cooling water channel is set inside the die. After the heat treatment is completed, cooling water is added through the water outlet to achieve accelerated cooling in the latter stage of the heat treatment and shorten the heat treatment time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1A schematic diagram of the overall structure of an embodiment of the utility model is given;

[0021] Figure 2 A schematic diagram of a mold closing state of an embodiment of the utility model is given;

[0022] Figure 3 A schematic diagram of the positioning pin structure of an embodiment of the utility model is given.

[0023] Figure numerals: 1. Cylinder; 2. PLC controller; 3. Cylinder connector; 4. Mounting plate; 5. Upper insulation board; 6. Upper template; 7. Ball bushing; 8. Guide column; 9. Locating pin; 10. Curved product; 11. Die; 12. Bottom plate; 13. Lower insulation board; 14. Temperature sensor; 15. Heating tube; 16. Lower template; 17. Safety grating; 18. Punch; 19. Support plate; 20. Fixing plate; 21. Solenoid valve; 22. Air switch; 23. AC contactor; 24. Water outlet; 25. Water inlet; 26. Start button; 27. Reset button; 28. Tiger's mouth structure. DETAILED DESCRIPTION

[0024] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0025] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0026] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are only used to describe the target ball sleeve 7, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Embodiment

[0030] This embodiment provides a heat treatment tooling for plastic curved surface products, as Figure 1 shown, which includes a main body assembly. The main body assembly includes a female mold 11, a bottom plate 12, a lower template 16, and a fixing plate 20. The lower template 16 is fixedly installed on the top of the bottom plate 12, the female mold 11 is fixedly installed on the top of the lower template 16, and a support plate 19 for supporting the fixing plate 20 is fixedly installed on the top of the bottom plate 12.

[0031] As Figure 3 shown, a curved surface product 10 is placed on the top of the female mold 11. A positioning pin 9 is fixedly installed on the top of the female mold 11. A small hole is opened on the curved surface product 10, and the positioning pin 9 passes through the small hole of the curved surface product 10, which is convenient for the placement and use of the curved surface product 10 and positions the curved surface product 10 at the same time.

[0032] A motion assembly is arranged on the fixing plate 20. The motion assembly includes a cylinder 1, a cylinder connecting piece 3, an upper template 6, and a male mold 18. The cylinder 1 is fixedly installed on the top of the fixing plate 20. The bottom of the cylinder 1 is fixedly installed with a cylinder connecting piece 3 that penetrates the fixing plate 20. The bottom of the cylinder connecting piece 3 is fixedly installed with the upper template 6, and the male mold 18 is fixedly installed on the bottom of the upper template 6. The curved surface product 10 is located on the moving path of the male mold 18. Two cylinders 1 are provided to provide pressure for heat treatment shaping.

[0033] As Figure 2 shown, the male mold 18 is adapted to the shape of the curved surface product 10. The female mold 11 and the male mold 18 clamp the curved surface product 10. A tiger mouth structure 28 is fixedly installed on the top of the female mold 11. A convex block is arranged on the male mold 18, and the convex block is inserted into the tiger mouth structure 28 to enable the female mold 11 and the male mold 18 to be accurately closed.

[0034] Inside the female die 11, a heating component is provided. The heating component includes a temperature sensor 14 and a heating pipe 15. The temperature sensor 14 and the heating pipe 15 are fixedly installed inside the female die 11. Four heating pipes 15 are provided and evenly distributed at the bottom of the female die 11. At the top of the fixing plate 20, a PLC controller 2 is fixedly installed. The PLC controller 2 is electrically connected to the temperature sensor 14 and the heating pipe 15. The temperature of the female die 11 is detected by the temperature sensor 14, and the heating pipe 15 provides heat for the heat treatment. The temperature of the female die 11 is displayed in real time through the PLC controller 2.

[0035] A lower heat insulation plate 13 is fixedly installed between the bottom plate 12 and the lower template 16, and an upper heat insulation plate 5 is fixedly installed between the cylinder connecting piece 3 and the upper template 6. Since the heating pipe 15 is provided inside the female die 11 and the temperature is relatively high, in order to reduce heat transfer, the upper heat insulation plate 5 and the lower heat insulation plate 13 need to be provided to prevent heat from being conducted to the cylinder 1 and the cylinder connecting piece 3, resulting in a reduced service life of the cylinder 1 and affecting the use. The lower heat insulation plate 13 and the upper heat insulation plate 5 are made of ceramic fiber material and have good heat insulation effects.

[0036] A plurality of guide posts 8 are fixedly installed at the top of the lower template 16, and a ball sleeve 7 with the same number as the guide posts 8 is fixedly installed at the bottom of the upper template 6. The guide posts 8 slide on the inner wall of the ball sleeve 7. A limit plate is fixedly installed at the top of the guide posts 8, and the guide posts 8 penetrate through the upper template 6 and the upper heat insulation plate 5.

[0037] As Figure 2 shown, an installation plate 4 is fixedly installed on the outside of the support plate 19. A safety light curtain 17 is fixedly installed on the side of the installation plate 4. An electromagnetic valve 21, an air switch 22 and a contactor 23 are fixedly installed on the side of the installation plate 4. The temperature control process time and the stepped temperature value are adjusted by programming the PLC controller. A start button 26 and a reset button 27 are provided on the side of the PLC controller 2. The start button 26 is used to start the PLC controller 2, and the reset button 27 is used to reset the PLC controller 2. The electromagnetic valve 21 is electrically connected to the cylinder 1, and the electromagnetic valve 21 controls the operation of the cylinder 1.

[0038] A water outlet 24 and a water inlet 25 are provided on the side of the female die 11. After the heat treatment is completed, water is introduced from the water outlet 24 to cool the female die 11, and the heat-exchanged water flows out from the water inlet 25.

[0039] First, place the curved surface product 10 on the female mold 11, and fix the position of the curved surface product 10 through the positioning pin 9. Press the solenoid valve 21 to make the cylinder move downward, so that the female mold 11 moves downward and is closed with the male mold 18 equipped with the curved surface product 10. The PLC controller 2 is internally provided with a stepped temperature control program, and the temperature is set in the range of 220°C to 50°C, and it will decrease by 10°C every 1 hour. The entire process time will last for 17 hours. Finally, it enters the cooling stage. Cooling water is added at the water outlet 24 to accelerate the temperature drop rate inside the mold cavity, shorten the entire heat treatment cycle time, improve efficiency. After the temperature returns to normal temperature, press the reset button 27, and the cylinder 1 drives the female mold 11 to move upward, and then the heat-treated and shaped curved surface product 10 can be taken out.

[0040] In this embodiment, the upper template 6 is pushed downward by the cylinder 1 to close the female mold 11 and the male mold 18. The curved surface product 10 placed on the top of the female mold 11 is heated by the heating tube 15 and under the pressure of the cylinder 1, so that the curved surface product 10 releases stress after heat treatment and completes the shaping to improve the warping situation.

[0041] The above specific embodiments are only several alternative embodiments of the present invention. Based on the technical solution of the present invention and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. Heat treatment tooling for plastic curved surface products, characterized in that: include: A main body component, the main body component comprising a concave mold (11), a bottom plate (12), a lower mold plate (16) and a fixed plate (20), the lower mold plate (16) being fixedly mounted on the top of the bottom plate (12), the concave mold (11) being fixedly mounted on the top of the lower mold plate (16), and a support plate (19) supporting the fixed plate (20) being fixedly mounted on the top of the bottom plate (12); A motion assembly, the motion assembly comprising a cylinder (1), a cylinder connecting piece (3), an upper template (6) and a punch (18), the cylinder (1) being fixedly mounted on the top of the fixed plate (20), the cylinder connecting piece (3) penetrating the fixed plate (20) being fixedly mounted on the bottom of the cylinder (1), the upper template (6) being fixedly mounted on the bottom of the cylinder connecting piece (3), and the punch (18) being fixedly mounted on the bottom of the upper template (6); A curved surface product (10) is placed on the top of the concave mold (11), and the curved surface product (10) is located on the moving path of the convex mold (18).

2. The heat treatment tool for plastic curved surface products according to claim 1, characterized in that: The male mold (18) is adapted to the shape of the curved surface product (10), and the female mold (11) and the male mold (18) clamp the curved surface product (10).

3. The heat treatment tool for plastic curved surface products according to claim 1, characterized in that: A jaw structure (28) is fixedly installed on the top of the concave die (11), a positioning pin (9) is fixedly installed on the top of the concave die (11), a small hole is opened on the curved surface product (10), and the positioning pin (9) passes through the small hole of the curved surface product (10).

4. The heat treatment tool for plastic curved surface products according to claim 1, characterized in that: The invention also comprises a heating component, wherein the heating component comprises a temperature sensor (14) and a heating tube (15); the temperature sensor (14) and the heating tube (15) are fixedly installed inside the die (11); a PLC controller (2) is fixedly installed on the top of the fixed plate (20); the PLC controller (2) is electrically connected to the temperature sensor (14) and the heating tube (15); and a water outlet (24) and a water inlet (25) are provided on the side of the die (11).

5. The heat treatment tool for plastic curved surface products according to claim 1, characterized in that: A plurality of guide pillars (8) are fixedly mounted on the top of the lower template (16), and a number of ball sleeves (7) equal to the number of the guide pillars (8) are fixedly mounted on the bottom of the upper template (6), and the guide pillars (8) slide on the inner wall of the ball sleeves (7).

6. The heat treatment tool for plastic curved surface products according to claim 5, characterized in that: A limit plate is fixedly installed on the top of the guide column (8), an upper heat insulation plate (5) is fixedly installed between the cylinder connecting piece (3) and the upper template (6), the guide column (8) passes through the upper template (6) and the upper heat insulation plate (5), and a lower heat insulation plate (13) is fixedly installed between the bottom plate (12) and the lower template (16).

7. The heat treatment tool for plastic curved surface products according to claim 1, characterized in that: An upper heat insulation board (5) is fixedly installed at the connection between the cylinder connecting piece (3) and the upper template (6), and a lower heat insulation board (13) is fixedly installed between the bottom plate (12) and the lower template (16).

8. The heat treatment tool for plastic curved surface products according to claim 4, characterized in that: A mounting plate (4) is fixedly mounted on the outer side of the support plate (19), a safety grating (17) is fixedly mounted on the side of the mounting plate (4), a solenoid valve (21), an air switch (22) and an AC contactor (23) are fixedly mounted on the side of the mounting plate (4), a start button (26) and a reset button (27) are provided on the side of the PLC controller (2), and the solenoid valve (21) is electrically connected to the cylinder (1).

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