Plastic product forming device

Abstract

The utility model relates to the technical field of plastic product processing, and discloses a plastic product forming device which comprises a bottom plate, supporting columns protruding upwards are arranged on the periphery of the top of the bottom plate, a cooling part is further arranged on the top of the bottom plate, the cooling part comprises a water tank capable of temporarily storing plastic products, and a containing cavity is formed in the inner side of the water tank. Cooling water is inversely arranged in the containing cavity, a first sponge is fixed to the bottom, corresponding to the containing cavity, of the water tank, a first lower mold and a second lower mold are arranged above the water tank, the first lower mold is fixed relative to the bottom plate, the second lower mold is located on the left side of the first lower mold, and the second lower mold can be attached to the first lower mold to form a forming groove. Plastic products can be cooled conveniently through cooling water in the containing cavity, the production efficiency is improved, the first sponge can buffer the plastic products falling from the forming groove to a certain degree, the situation that the plastic products make contact with the bottom rapidly in the water tank due to the gravity effect, and consequently the formed plastic products are bad is prevented, only the second movable lower mold is arranged, moving parts are reduced, and the production cost is reduced. And the manufacturing cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of plastic product processing technology, and in particular to a plastic product molding device. Background Technology

[0002] Plastic products are a general term for everyday and industrial goods made primarily from plastics. This includes products manufactured using processes such as injection molding and thermoforming. Plastics are a class of synthetic polymer materials with malleability. Together with synthetic rubber and synthetic fibers, they form the three essential synthetic materials for daily life. Specifically, plastics are materials made primarily of natural or synthetic resins, with various additives, which can be molded into specific shapes under certain temperature and pressure conditions and retain their shape at room temperature.

[0003] Existing plastic product molding devices require two hydraulic devices to drive the lower mold to separate. Using two hydraulic devices increases the manufacturing unit price of the plastic product molding device and the purchase cost for customers. At the same time, the molded plastic products fall directly into the water tank, and the plastic products may impact the bottom of the water tank, causing deformation and damage to the freshly molded plastic products, thus reducing the output efficiency of the plastic product molding device. Utility Model Content

[0004] To overcome the problems of existing devices that use hydraulic devices on both sides of the lower mold for movement, which increases the manufacturing cost of plastic product molding devices, and the plastic products that fall directly into the water tank may be deformed due to impact.

[0005] The technical solution of this utility model is as follows: a plastic product molding device, including a base plate, with upwardly protruding support columns around the top of the base plate, and a cooling section at the top of the base plate. The cooling section includes a water tank that can temporarily store plastic products. The inner side of the water tank has a receiving cavity, and the receiving cavity contains inverted cooling water. A sponge is fixed to the bottom of the receiving cavity corresponding to the water tank. A lower mold 1 and a lower mold 2 are provided above the water tank. The lower mold 1 is fixed relative to the base plate, and the lower mold 2 is located to the left of the lower mold 1. The lower mold 2 can fit close to the lower mold 1 to form a molding groove, in which plastic products can be molded. The lower mold 2 can move to the left, and an upper mold is suspended above the molding groove.

[0006] Preferably, the right side of the top of the second lower mold is provided with a second wall-breaking groove, and the left side of the top of the first lower mold is provided with a first wall-breaking groove. The second wall-breaking groove and the first wall-breaking groove can together form a molding groove that can form plastic products. The distance between the left and right sides of the second wall-breaking groove is greater than the distance between the left and right sides of the first wall-breaking groove. When the formed plastic product is located in the molding groove, the center of gravity of the formed plastic product is located on the second wall-breaking groove.

[0007] Preferably, there are four support columns, the base plate is a rectangular structure, the support columns are located at the four corners of the top of the base plate, and the support columns on the front and rear sides are provided with support columns on the side facing the water tank. The lower mold is fixed to the right side of the top of the support column.

[0008] Preferably, a slide rail is provided on the side of the support column away from the support column, and downward protruding support plates are provided on the front and rear sides of the bottom of the lower mold. A slider is provided on the side of the support plate facing the slide rail, and the slider can slide on the slide rail.

[0009] Preferably, the lower mold is connected to the left side of the electric cylinder, the bottom of the electric cylinder is provided with a support plate, the support plate is located at the top of the support column, and the electric cylinder includes a servo motor, which is located on the left side.

[0010] Preferably, the tops of the four support columns are connected to an upper plate. The top of the upper plate is equipped with an electric cylinder, which includes a servo motor located at the top. The output rod of the electric cylinder extends downward through the upper plate. The bottom of the output rod of the electric cylinder is equipped with a moving plate. The upper mold is located at the bottom of the moving plate. The top of the moving plate is equipped with a guide rod, which can extend upward through the upper plate.

[0011] Preferably, the side wall of the lower mold is provided with a guide hole, the axis of which is parallel to the length direction of the slide rail, and the right side of the lower mold is provided with a guide rod corresponding to the guide hole.

[0012] The beneficial effects of this utility model are: the sponge can cushion the plastic products falling from the molding tank, preventing them from hitting the bottom of the tank quickly due to gravity, thus preventing defects in the molded plastic products; the lower mold is the only moving part, reducing moving parts and lowering manufacturing costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the lower mold structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the lower mold of this utility model;

[0016] Figure 4 This is a schematic diagram of the water tank structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the upper mold structure of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Base plate; 11. Support column; 12. Water tank; 120. Receiving cavity; 121. Sponge I; 21. Support column; 211. Slide rail; 220. Forming groove; 2201. Wall-breaking groove II; 2202. Wall-breaking groove I; 221. Lower mold I; 2211. Guide hole; 222. Lower mold II; 2221. Support plate; 2222. Slider; 23. Electric cylinder II; 231. Servo motor II; 232. Bearing plate; 3. Upper plate; 31. Moving plate; 311. Guide rod I; 312. Upper mold; 32. Electric cylinder I; 321. Servo motor I. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please see Figure 1 - Figure 5 This utility model provides an embodiment of a plastic product molding device, including a base plate 1, with upwardly protruding support columns 11 around the top perimeter of the base plate 1, and a cooling section at the top of the base plate 1. The cooling section includes a water tank 12 for temporarily storing plastic products, with a receiving cavity 120 inside the water tank 12. Cooling water is inverted inside the receiving cavity 120, and a sponge 121 is fixed to the bottom of the receiving cavity 120 corresponding to the water tank 12. A lower mold 221 and a lower mold 222 are provided above the water tank 12. 21 is fixed relative to the base plate 1. The lower mold 222 is located to the left of the lower mold 221. The lower mold 222 can fit close to the lower mold 221 to form a molding groove 220. Plastic products can be molded in the molding groove 220. The lower mold 222 can move to the left. An upper mold 312 is suspended above the molding groove 220. Cooling water in the receiving cavity 120 facilitates the cooling of the plastic products, improving the cooling efficiency of the plastic products and increasing production efficiency. The sponge 121 can absorb the plastic products falling from the molding groove 220. The plastic product is cushioned to prevent it from hitting the bottom of the water tank 12 too quickly due to gravity, which could cause defects in the molded plastic product. Only the lower mold 222 moves, reducing moving parts and lowering manufacturing costs. The lower mold 222 has a second wall-breaking groove 2201 on the top right side, and the lower mold 1 has a first wall-breaking groove 2202 on the top left side. The second wall-breaking groove 2201 and the first wall-breaking groove 2202 together form a molding groove 220 for molding the plastic product. The distance between the left and right sides of 201 is greater than the distance between the left and right sides of the first wall-breaking groove 2202. When the formed plastic product is in the forming groove 220, the center of gravity of the formed plastic product is located on the second wall-breaking groove 2201. Because the distance between the left and right sides of the second wall-breaking groove 2201 is greater than the distance between the left and right sides of the first wall-breaking groove 2202, the center of gravity of the formed plastic product in the forming groove 220 is located on the second lower mold 222. The rapid removal of the second lower mold 222 can cause the formed plastic product to fall into the water tank 12.

[0021] Please see Figure 2 - Figure 5 In this embodiment, there are four support columns 11. The base plate 1 has a rectangular structure. The support columns 11 are located at the four corners of the top of the base plate 1. Support columns 21 are provided on the side of the support columns 11 facing the water tank 12. A lower mold 221 is fixed to the right side of the top of the support column 21. The four support columns 11 increase the overall stability of the device. The sidewalls of the support columns 11 are connected to the support columns 21, allowing the support columns 21 to stably support the lower mold 221. The support columns 21 can fix the lower mold 221, preventing it from moving with the lower mold 222. A slide rail 211 is provided on the side of the support column 21 away from the support columns 11. The bottom of the lower mold 222... The front and rear sides are provided with downwardly protruding support plates 2221. A slider 2222 is provided on the side of the support plate 2221 facing the slide rail 211. The slider 2222 can slide on the slide rail 211. Through the cooperation of the lower mold 221 and the slider 2222, the damage to the movement of the lower mold 222 is increased, and the load on the servo motor 231 is reduced. The slider 2222 can support the lower mold 222, enabling it to move left and right. An electric cylinder 23 is connected to the left side of the lower mold 222. A support plate 232 is provided at the bottom of the electric cylinder 23, located at the top of the support column 21. The electric cylinder 23 includes a servo motor 231. 1. Located on the left side, it is connected to the support plate 232 via an electric cylinder 23, enabling the electric cylinder 23 to move the support plate 232 left and right, achieving the effect of removing the bottom support of the molded plastic product. The tops of the four support columns 11 are connected to the upper plate 3. The top of the upper plate 3 is equipped with an electric cylinder 32, which includes a servo motor 321 located at the top. The output rod of the electric cylinder 32 extends downward through the upper plate 3. The bottom of the output rod of the electric cylinder 32 is equipped with a moving plate 31. The upper mold 312 is located at the bottom of the moving plate 31. The top of the moving plate 31 is equipped with a guide rod 311, which can extend upward through the upper plate 3 and is driven by the electric cylinder 32. The movable plate 31 moves up and down, thereby driving the upper mold 312 to move up and down, achieving the effect of mold opening and closing. At the same time, the guide rod 311 can increase the stability of the movement of the upper mold 312 and increase the yield of molded plastic products. The side wall of the lower mold 221 is provided with a guide hole 2211. The axis of the guide hole 2211 is parallel to the length direction of the slide rail 211. The right side of the lower mold 222 is provided with a guide rod corresponding to the guide hole 2211. The guide rod on the right side of the lower mold 222 cooperates with the guide hole 2211 of the lower mold 221 to increase the stability of the operation of the lower mold 222 and prevent the lower mold 222 from deviating when it is in contact with the lower mold 221.

[0022] During operation, molten plastic is injected into the molding groove 220 formed by the second wall-breaking groove 2201 and the first wall-breaking groove 2202. Then, the first electric cylinder 32 drives the moving plate 31 downwards, which in turn moves the upper mold 312 downwards, causing the textured bottom of the upper mold 312 to press against the plastic product in the molding groove 220. After the plastic product in the molding groove 220 cools and solidifies, the first electric cylinder 32 drives the moving plate 31 to move the upper mold 312 upwards. Then, the second electric cylinder 23 quickly drives the second lower mold 222 to the left, and the slider 2222 installed at the support plate 2221 moves along the slide rail 211. As the plastic product slides upwards, only the right side of the molded plastic product is within the wall-breaking groove 2202. However, the wall-breaking groove 2202 cannot provide good support for the molded plastic product, and the center of the molded plastic product is far away from the lower mold 222. As a result, the molded plastic product will fall into the receiving cavity 120 of the water tank 12 under the action of gravity. The receiving cavity 120 is equipped with a sponge 121, which is fixed in the water tank 12 by a frame-shaped fixing plate and does not float. When the molded plastic product falls into the water tank 12, the sponge 121 can cushion the molded plastic product and reduce damage to the molded plastic product.

[0023] Through the above steps, the cooling water in the receiving cavity 120 facilitates the cooling of plastic products, improves the cooling efficiency of plastic products, and increases production efficiency. The sponge 121 can provide a certain buffer for plastic products falling from the molding tank 220, preventing plastic products from hitting the bottom of the water tank 12 quickly due to gravity, which would cause defects in the molded plastic products. Only the lower mold 222 moves, reducing moving parts and reducing manufacturing costs. This solves the problem that the existing device uses hydraulic devices on both sides of the lower mold for movement, which increases the manufacturing cost of the plastic product molding device. At the same time, the plastic products that fall directly into the water tank may be deformed due to impact.

Claims

1. A plastic product molding apparatus, characterized in that: The device includes a base plate (1), with upward-protruding support columns (11) around the top of the base plate (1). A cooling section is also provided on the top of the base plate (1). The cooling section includes a water tank (12) that can temporarily store plastic products. A receiving cavity (120) is provided inside the water tank (120). Cooling water is inverted in the receiving cavity (120). A sponge (121) is fixed to the bottom of the receiving cavity (120) of the water tank (12). A lower mold (221) and a lower mold (222) are provided above the water tank (12). The lower mold (221) is fixed relative to the base plate (1). The lower mold (222) is located to the left of the lower mold (221). The lower mold (222) can fit close to the lower mold (221) to form a molding groove (220). Plastic products can be formed in the molding groove (220). The lower mold (222) can move to the left. An upper mold (312) is suspended above the molding groove (220).

2. The plastic product molding apparatus according to claim 1, characterized in that: The second lower mold (222) has a second wall-breaking groove (2201) on the right side of the top, and the first lower mold (221) has a first wall-breaking groove (2202) on the left side of the top. The second wall-breaking groove (2201) and the first wall-breaking groove (2202) can together form a molding groove (220) that can form plastic products. The distance between the left and right sides of the second wall-breaking groove (2201) is greater than the distance between the left and right sides of the first wall-breaking groove (2202). When the formed plastic product is located in the molding groove (220), the center of gravity of the formed plastic product is located on the second wall-breaking groove (2201).

3. The plastic product molding apparatus according to claim 2, characterized in that: There are four support columns (11). The base plate (1) is a rectangular structure. The support columns (11) are located at the four corners of the top of the base plate (1). The support columns (11) on the front and rear sides are provided with support columns (21) on the side facing the water tank (12). The lower mold (221) is fixed on the right side of the top of the support column (21).

4. The plastic product molding apparatus according to claim 3, characterized in that: The support column (21) is provided with a slide rail (211) on the side away from the support column (11). The bottom of the lower mold (222) has downward protruding support plates (2221) on the front and rear sides. The support plate (2221) is provided with a slider (2222) on the side facing the slide rail (211). The slider (2222) can slide on the slide rail (211).

5. The plastic product molding apparatus according to claim 4, characterized in that: The lower mold (222) is connected to the left side of the electric cylinder (23). The bottom of the electric cylinder (23) is provided with a support plate (232). The support plate (232) is located on the top of the support column (21). The electric cylinder (23) includes a servo motor (231), which is located on the left side.

6. The plastic product molding apparatus according to claim 5, characterized in that: The top of the four support columns (11) is connected to the upper plate (3). The top of the upper plate (3) is provided with an electric cylinder (32). The electric cylinder (32) includes a servo motor (321) located at the top. The output rod of the electric cylinder (32) extends downward through the upper plate (3). The bottom of the output rod of the electric cylinder (32) is provided with a moving plate (31). The upper mold (312) is located at the bottom of the moving plate (31). The top of the moving plate (31) is provided with a guide rod (311). The guide rod (311) can extend upward through the upper plate (3).

7. The plastic product molding apparatus according to claim 6, characterized in that: The lower mold (221) has a guide hole (2211) on its side wall. The axis of the guide hole (2211) is parallel to the length direction of the slide rail (211). The lower mold (222) has a guide rod on its right side that corresponds to the guide hole (2211).

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