Cooling device for injection mould of automobile seat backrest

Abstract

The utility model relates to the technical field of automobile seat guard plate injection mold provides a cooling device of automobile seat guard plate injection mold, including base, the edge position department of base top all are fixed with support, the top of support is fixed with the top plate, the bottom of top plate is provided with the heat radiation structure, the heat radiation structure includes the electric push rod of installing in the top plate top two sides, the output of electric push rod of top plate bottom is installed with the template, the inside of support outside template is provided with the sliding slot, the outside of support both ends all is provided with the buffer pad, the inside of base is provided with the cooling structure. The utility model is provided with heat radiation structure, forms air cooling heat dissipation through the symmetrical distribution heat dissipation groove and heat dissipation fan, combines the equidistance first through -hole on the heat radiation plate, has increased the contact area of airflow and mould greatly, has accelerated the heat emission of the mould surface after injection molding.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat cover injection mold technology, and in particular to a cooling device for automotive seat cover injection mold. Background Technology

[0002] An injection mold for automotive seat upholstery panels is a precision molding tool specifically designed for producing automotive seat upholstery panels. It's a specialized production tool that injects molten plastic into a mold cavity, which then cools and solidifies to form automotive seat upholstery panel components of a specific shape, size, and function. A cooling device for an automotive seat upholstery injection mold is a key system within the mold used to control the molding temperature, accelerate plastic solidification, and ensure stable product quality. It regulates the mold temperature through circulating cooling media, allowing the molten plastic to cool rapidly and uniformly, thereby shortening the molding cycle, reducing product deformation, and improving production efficiency. To address this, patent CN214645639U discloses a processing mold for an automotive seat bracket with a cooling function. The mold includes a platform, with sliding rods fixedly connected to the top left and right sides of the platform, and sliding blocks slidably connected to the outer walls of the sliding rods. A through groove is fixedly installed inside each sliding block. A cooling box is fixedly installed between the sliding blocks, and an injection mold is fixedly installed inside the cooling box. Drainage pipes are interconnected on the bottom left and right sides of the cooling box. A screw hole is fixedly installed inside the platform, and a screw rod is threaded onto the inner wall of the screw hole. This invention allows for adjustment of the mold height, facilitating injection molding, and provides excellent cooling after processing. The aforementioned automotive seat bracket processing mold with cooling function is cooled during use through a cooling box and drain pipe. It relies on the natural heat dissipation or simple flow of the medium in the cooling box, resulting in limited heat exchange efficiency and difficulty in achieving rapid cooling. In contrast, this application adopts a dual cooling design of "heat dissipation structure + cooling structure": the cooling fan generates airflow, which expands the contact area through the first through hole of the heat dissipation plate to achieve initial heat dissipation; the cooling chamber, together with the second through hole of the heat conduction plate, forms a highly efficient heat exchange, and the circulating flow of the cooling medium enhances deep cooling, thereby improving the cooling efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a cooling device for an injection mold of an automotive seat cover, in order to solve the defect that existing automotive seat bracket processing molds with cooling functions are not easy to dissipate heat quickly.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a cooling device for an injection mold of an automotive seat cover, including a base; Support rods are fixed at the top edge of the base, and a top plate is fixed at the top of each support rod. A heat dissipation structure is provided at the bottom of the top plate. The heat dissipation structure includes electric push rods installed on both sides of the top of the top plate. A template is installed at the output end of the electric push rod at the bottom of the top plate. A sliding groove is provided inside the template on the outer side of the support rod. A buffer pad is provided on the outer side of both ends of the support rod. An injection port is fixed at the middle position inside the template. Heat dissipation grooves are provided on both sides inside the template. A cooling fan is installed at the top of the heat dissipation groove. A heat dissipation plate is fixed at the bottom of the heat dissipation groove. A first through hole is provided inside the heat dissipation plate. A retaining ring is fixed at the bottom of the template. The base is equipped with a cooling structure inside.

[0005] Preferably, the electric push rods are symmetrically distributed at the top of the top plate, the template and the support rod are slidably connected by a sliding groove, and the buffer pad is made of rubber.

[0006] With the above structure, the support rods guide the movement of the template during use, allowing the template to slide up and down only along the vertical direction of the support rods. This restricts the lateral displacement of the template, ensuring that the template maintains the correct movement trajectory during position adjustment or injection molding, thus improving the accuracy of equipment operation. Furthermore, when the template contacts the buffer pads at both ends of the support rods, it effectively absorbs the impact force generated by the template movement, reducing hard collisions between the template and the support rods, reducing component wear, and extending the service life of the equipment.

[0007] Preferably, the heat dissipation grooves are symmetrically distributed inside the template, and an exhaust hole is provided on one side of the heat dissipation grooves. The first through holes are evenly distributed inside the heat dissipation plate.

[0008] With the above structure, the airflow in the heat sink is provided through the exhaust port during use. When the cooling fan is working, the generated airflow enters the heat sink and exchanges heat with the heat sink plate. The airflow carrying heat can be discharged in time through the exhaust port, forming a complete airflow circulation path.

[0009] Preferably, the cooling structure includes a mold cavity disposed at the top of the base, a cooling chamber disposed inside the base outside the mold cavity, a heat-conducting plate fixed inside the cooling chamber, a second through hole disposed inside the heat-conducting plate, a water tank fixed to one side of the base, a water pump installed inside the water tank, a water supply pipe installed at the output end of the water pump, a return water pipe fixed to one side of the bottom of the base, coolers installed on both sides inside the water tank, and a drain pipe fixed to one side of the bottom of the water tank.

[0010] Preferably, the outer side of the retaining ring is fitted with the inner side of the mold cavity, the interior of the mold cavity is convex, and the interior of the cooling cavity is concave.

[0011] With the above structure, the outer side of the retaining ring fits into the inner side of the mold cavity during use, thereby achieving precise positioning of the template and the base. This ensures the stability of the relative position of the template and the mold cavity during injection molding, enhances the sealing between the template and the mold cavity, prevents the injection molding material from leaking from the gaps during high-pressure injection, reduces material waste, and ensures the integrity of the injection molded parts' edges.

[0012] Preferably, the heat-conducting plates are evenly distributed inside the cooling cavity, and the second through holes are evenly distributed inside the heat-conducting plates.

[0013] With the above structure, during use, the heat transferred from the mold cavity can be evenly distributed to various areas of the cooling cavity through the heat-conducting plates. This ensures that the cooling medium inside the cooling cavity can fully contact the multiple heat-conducting plates, and the second through-holes are evenly distributed inside the heat-conducting plates, significantly increasing the contact area between the cooling medium and the heat-conducting plates. When the cooling medium flows in the cooling cavity, it passes through these through-holes, allowing the cooling medium to contact not only the outer surface of the heat-conducting plates but also the inner wall of the through-holes, further improving the efficiency of heat transfer.

[0014] Preferably, one end of the water supply pipe and the return pipe extends through one side of the base and into the interior of the cooling chamber, and a valve is installed on the outside of the drain pipe.

[0015] With the above structure, during use, one end of the water supply pipe and the return pipe penetrates through the base and extends into the cooling chamber, providing a direct and efficient channel for the circulation of the cooling medium, ensuring the utilization rate and circulation efficiency of the cooling medium, thereby continuously and stably providing a cooling effect for the mold.

[0016] The present invention provides a cooling device for an injection mold of an automotive seat cover, the advantages of which are: By setting up a heat dissipation structure, air cooling is formed through symmetrically distributed heat dissipation slots and cooling fans. Combined with the equally spaced first through holes on the heat dissipation plate, the contact area between the airflow and the mold is greatly increased, which accelerates the heat dissipation of the mold surface after injection molding. With a cooling structure, the cooling medium forms a closed loop through the water supply and return pipes, and the cooler in the water tank can stably control the temperature of the medium. Furthermore, the heat-conducting plates arranged at equal intervals ensure that the heat in each area of ​​the mold is evenly transferred to the cooling medium. The second through hole on the heat-conducting plate further enhances the heat exchange efficiency between the cooling medium and the heat-conducting plate. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the present invention; Figure 3This is a schematic diagram of the three-dimensional frontal cross-sectional structure of this utility model; Figure 4 This is a three-dimensional side view sectional structural diagram of the present invention; Figure 5 This is a three-dimensional exploded structural diagram of the present invention.

[0018] The following are the annotations in the diagram: 1. Base; 2. Support rod; 3. Top plate; 4. Heat dissipation structure; 401. Electric push rod; 402. Template; 403. Slide groove; 404. Buffer pad; 405. Injection port; 406. Heat dissipation groove; 407. Cooling fan; 408. Heat dissipation plate; 409. First through hole; 410. Retaining ring; 5. Cooling structure; 501. Mold cavity; 502. Cooling chamber; 503. Heat conduction plate; 504. Second through hole; 505. Water tank; 506. Water pump; 507. Water supply pipe; 508. Water return pipe; 509. Refrigerator; 510. Drain pipe. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-5 The present invention provides a cooling device for an injection mold of an automotive seat cover, comprising a base 1.

[0021] Reference Figures 1-5As shown, support rods 2 are fixed at the top edge of the base 1, and a top plate 3 is fixed at the top of the support rods 2. A heat dissipation structure 4 is provided at the bottom of the top plate 3. The heat dissipation structure 4 includes electric push rods 401 installed on both sides of the top of the top plate 3. A template 402 is installed at the output end of the electric push rods 401 at the bottom of the top plate 3. A sliding groove 403 is provided inside the template 402 on the outer side of the support rod 2. A buffer pad 404 is provided on the outer side of both ends of the support rod 2. An injection port 405 is fixed at the middle position inside the template 402. Heat dissipation grooves 406 are provided on both sides inside the template 402. A cooling fan 407 is installed at the top of the 06, a heat sink 408 is fixed at the bottom of the heat sink 406, a first through hole 409 is provided inside the heat sink 408, a retaining ring 410 is fixed at the bottom of the template 402, electric push rods 401 are symmetrically distributed at the top of the top plate 3, the template 402 and the support rod 2 are slidably connected by a sliding groove 403, the buffer pad 404 is made of rubber, the heat sink 406 is symmetrically distributed inside the template 402, an exhaust hole is provided on one side of the heat sink 406, and the first through hole 409 is evenly distributed inside the heat sink 408.

[0022] The electric push rod 401 is activated to move the template 402. This causes the template 402 to slide up and down along the support rod 2, adjusting it to a working position compatible with the mold. The buffer pads 404 on the outer sides of both ends of the support rod 2 buffer and dampen the template 402 during its sliding, preventing hard collisions between components. When the template 402 reaches the designated position, the retaining ring 410 engages with the mold cavity 501, providing positioning and sealing. The injection port 405 then provides a material injection channel for the injection process, allowing the material to enter the mold cavity 501 for injection. After injection, the cooling fan 407 mounted on the top of the heat dissipation tank 406 is activated. The cooling fan 407 generates airflow, which enters the heat dissipation tank 406. Passing through the heat dissipation plate 408, the airflow passes through the evenly spaced first through holes 409, increasing the contact area between the airflow and the heat dissipation plate 408 and accelerating heat dissipation. The heat-carrying airflow can then be discharged through the exhaust holes, forming a complete airflow circulation path, thus providing initial cooling for the mold.

[0023] Reference Figure 1 , Figure 3 , Figure 4 and Figure 5As shown in the figure, a cooling structure 5 is provided inside the base 1. The cooling structure 5 includes a mold cavity 501 provided at the top end of the base 1. Inside the base 1 outside the mold cavity 501, a cooling cavity 502 is provided. A heat conduction plate 503 is fixed inside the cooling cavity 502. A second through hole 504 is provided inside the heat conduction plate 503. A water tank 505 is fixed on one side of the base 1. A water pump 506 is installed inside the water tank 505. The output end of the water pump 506 is installed with a water delivery pipe 507. A water return pipe 508 is fixed on one side of the bottom of the base 1. Refrigerators 509 are installed on both sides inside the water tank 505. A drain pipe 510 is fixed on one side of the bottom of the water tank 505. The outer side of the retaining ring 410 is fitted with the inner side of the mold cavity 501. The inside of the mold cavity 501 is arranged in a "convex" shape. The inside of the cooling cavity 502 is arranged in a "concave" shape. The heat conduction plates 503 inside the cooling cavity 502 are arranged at equal intervals. The second through holes 504 inside the heat conduction plates 503 are arranged at equal intervals. The heat conduction plates 503 inside the cooling cavity 502 are arranged at equal intervals. The second through holes 504 inside the heat conduction plates 503 are arranged at equal intervals. One ends of the water delivery pipe 507 and the water return pipe 508 respectively penetrate through one side of the base 1 and extend into the inside of the cooling cavity 502. A valve is installed on the outer side of the drain pipe 510. [[ID=!]]

[0024] By starting the refrigerators 509 on both sides inside the water tank 505, the cooling medium inside the water tank 505 is refrigerated to make it reach a suitable cooling temperature. After the refrigeration is completed, the water pump 506 is then started. The water pump 506 conveys the cooled medium through the water delivery pipe 507 into the cooling cavity 502. The cooling medium flows inside the cooling cavity 502. The heat conduction plates 503 inside the cooling cavity 502 are arranged at equal intervals, and can efficiently conduct the heat generated by the mold to the cooling medium. At the same time, the second through holes 504 inside the heat conduction plates 503 are arranged at equal intervals, further increasing the contact area between the cooling medium and the heat conduction plates 503, improving the heat exchange efficiency, enhancing the cooling effect. The cooling medium after absorbing heat flows back to the water tank 505 through the water return pipe 508, thus forming a cycle of the cooling medium.

[0025] [[ID=!]]Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A cooling device for an injection mold of an automotive seat cover, comprising a base (1); Its features are: Support rods (2) are fixed at the edge of the top of the base (1). A top plate (3) is fixed at the top of the support rods (2). A heat dissipation structure (4) is provided at the bottom of the top plate (3). The heat dissipation structure (4) includes electric push rods (401) installed on both sides of the top of the top of the top plate (3). A template (402) is installed at the output end of the electric push rod (401) at the bottom of the top plate (3). A sliding groove (403) is provided inside the template (402) on the outside of the support rod (2). Both ends of the support rod (2) A buffer pad (404) is provided on the outer side of each template (402). An injection port (405) is fixed in the middle of the template (402). Heat dissipation grooves (406) are provided on both sides of the template (402). A cooling fan (407) is installed at the top of the heat dissipation groove (406). A heat dissipation plate (408) is fixed at the bottom of the heat dissipation groove (406). A first through hole (409) is provided inside the heat dissipation plate (408). A retaining ring (410) is fixed at the bottom of the template (402). The base (1) is provided with a cooling structure (5).

2. The cooling device for an injection mold of an automotive seat cover panel according to claim 1, characterized in that: The electric push rods (401) are symmetrically distributed at the top of the top plate (3), the template (402) and the support rod (2) are slidably connected by the slide groove (403), and the buffer pad (404) is made of rubber.

3. The cooling device for an injection mold of an automotive seat cover panel according to claim 1, characterized in that: The heat dissipation grooves (406) are symmetrically distributed inside the template (402), and an exhaust hole is provided on one side of the heat dissipation grooves (406). The first through holes (409) are evenly distributed inside the heat dissipation plate (408).

4. The cooling device for an injection mold of an automotive seat cover panel according to claim 1, characterized in that: The cooling structure (5) includes a mold cavity (501) disposed at the top of the base (1), a cooling cavity (502) disposed inside the base (1) outside the mold cavity (501), a heat-conducting plate (503) fixed inside the cooling cavity (502), a second through hole (504) disposed inside the heat-conducting plate (503), a water tank (505) fixed on one side of the base (1), a water pump (506) installed inside the water tank (505), a water supply pipe (507) installed at the output end of the water pump (506), a return water pipe (508) fixed on one side of the bottom of the base (1), a cooler (509) installed on both sides inside the water tank (505), and a drain pipe (510) fixed on one side of the bottom of the water tank (505).

5. The cooling device for an injection mold of an automotive seat cover panel according to claim 4, characterized in that: The outer side of the retaining ring (410) fits into the inner side of the mold cavity (501), the interior of the mold cavity (501) is convex, and the interior of the cooling cavity (502) is concave.

6. The cooling device for an injection mold of an automotive seat cover panel according to claim 4, characterized in that: The heat-conducting plates (503) are evenly distributed inside the cooling cavity (502), and the second through holes (504) are evenly distributed inside the heat-conducting plates (503).

7. The cooling device for an injection mold of an automotive seat cover panel according to claim 4, characterized in that: One end of the water supply pipe (507) and the return water pipe (508) respectively penetrates one side of the base (1) and extends into the interior of the cooling chamber (502), and a valve is installed on the outside of the drain pipe (510).

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