PE plastic product forming injection device

Abstract

The utility model relates to the technical field of PE plastic product production, especially a PE plastic product forming injection molding device, including lower mould subassembly and upper mould subassembly, the upside of lower mould subassembly is equipped with upper mould subassembly, in the utility model, through being provided first heat dissipation frame, second heat dissipation frame, shunt box, first shunt pipe, flexible connecting pipe and second shunt pipe, the device can be shunted through shunt box, through flexible connecting pipe to the second shunt pipe that needs to move up and down transports air, and then through first shunt pipe and second shunt pipe respectively to first heat dissipation frame and second heat dissipation frame transports air, through the air of quick flow and cool down lower mould and upper mould, simultaneously through the elastic force of compression spring and promote support axle, through support axle and prop up flexible connecting pipe, prevent flexible connecting pipe and contact lower mould, upper mould, the device has higher cooling efficiency, makes the overall production efficiency of PE plastic product improve.

Description

TECHNICAL FIELD

[0001] The utility model relates to PE plastic product production technical field, concretely is a kind of PE plastic product forming injection molding device. BACKGROUND

[0002] PE (polyethylene) is the thermoplastic resin of ethylene polymerization, it is odorless, nontoxic, low temperature resistance is strong, chemical stability is good, can resist the erosion of most acid and alkali, therefore widely used in the production of various plastic products, and PE plastic product forming injection molding device can be made into the plastic product required by PE.

[0003] Part of the existing PE plastic product forming injection molding device structure is relatively simple, PE plastic injection molding needs to wait for its natural cooling after demolding, and the cooling mode is low in efficiency, so that the overall production efficiency of PE plastic product is low, therefore, aiming at the above problem, a kind of PE plastic product forming injection molding device is provided. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of PE plastic product forming injection molding device to solve the problem that part of the existing PE plastic product forming injection molding device structure is relatively simple, PE plastic injection molding needs to wait for its natural cooling after demolding, and the cooling mode is low in efficiency.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A PE plastic product injection molding device includes a lower mold assembly and an upper mold assembly. The upper mold assembly is located on the upper side of the lower mold assembly, and a heat dissipation assembly and a support assembly are located on the left side of the lower mold assembly. The lower mold assembly includes a worktable and limiting plates. Four limiting plates are fixedly connected to the upper side of the worktable, and a lower mold is fixedly connected to the upper side of the worktable. A first heat dissipation frame is fixedly connected inside the lower mold. The upper mold assembly includes hydraulic rods and transmission blocks. Two hydraulic rods are fixedly connected to the upper side of the worktable, and transmission blocks are fixedly connected to the upper side of each hydraulic rod. An upper mold is fixedly connected between the two transmission blocks, and a second heat dissipation frame is fixedly connected inside the upper mold. The heat dissipation assembly includes... The workbench includes a gas pump and a distribution box. A gas pump is fixedly connected to the upper side of the workbench, and a distribution box is fixedly connected to the exhaust port of the gas pump. A first distribution pipe is fixedly connected to the right side of the distribution box, and the air outlet of the first distribution pipe is connected to the air inlet of the first heat sink. A flexible connecting pipe is fixedly connected to the upper side of the distribution box, and a second distribution pipe is fixedly connected to the end of the flexible connecting pipe away from the distribution box. The air outlet of the second distribution pipe is connected to the air inlet of the second heat sink. The support assembly includes sliding rails and a support shaft. A pair of sliding rails are fixedly connected to the left side of the lower mold, and a support shaft is slidably connected between the two sliding rails. A pair of compression springs are fixedly connected to the right side of the support shaft, and the right end of the compression springs is fixedly connected to the lower mold.

[0007] Preferably, the height of the limiting plate is greater than the sum of the heights of the lower mold and the upper mold, the four corners of the lower mold are fixedly connected to the limiting plate, and the four corners of the upper mold are fitted to the limiting plate.

[0008] Preferably, the first heat sink and the second heat sink are each provided with two air inlets on the left side, and the first heat sink and the second heat sink are each provided with two air outlets on the right side.

[0009] Preferably, the opposing sides of the two hydraulic rods are fixedly connected to the lower mold, the left half of the upper mold is provided with an injection port, and the right half of the upper mold is provided with an exhaust port.

[0010] Preferably, the gas pump has an air intake on its upper side and an air exhaust on its right side, and both the first and second split pipes have two air supply ports on their right sides.

[0011] Preferably, rectangular grooves are provided on the opposing sides of the two sliding rails, and rectangular sliders are provided on both the front and rear sides of the support shaft, with the flexible connecting tube in contact with the support shaft.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this invention, the device, consisting of a first heat sink, a second heat sink, a distribution box, a first distribution pipe, a flexible connecting pipe, and a second distribution pipe, can distribute air through the distribution box. Air is then supplied to the second distribution pipe, which needs to move up and down, via the flexible connecting pipe. This air then supplies air to the first and second heat sinks respectively. The rapidly flowing air cools the lower and upper molds. Simultaneously, the spring force of a compression spring pushes a support shaft, which in turn supports the flexible connecting pipe, preventing it from tangling or contacting the lower or upper molds. This device has high cooling efficiency, thus improving the overall production efficiency of PE plastic products. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the lower mold assembly structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the heat dissipation component structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the support component structure of this utility model;

[0018] Figure 5 This is a cross-sectional view of the installation structure of the first heat sink bracket of this utility model;

[0019] Figure 6 This is a cross-sectional view of the installation structure of the second heat sink bracket of this utility model.

[0020] In the diagram: 1. Lower mold assembly; 11. Worktable; 12. Limiting plate; 13. Lower mold; 14. First heat sink; 2. Upper mold assembly; 21. Hydraulic rod; 22. Transmission block; 23. Upper mold; 24. Second heat sink; 3. Heat dissipation assembly; 31. Gas pump; 32. Diverter box; 33. First diverter pipe; 34. Flexible connecting pipe; 35. Second diverter pipe; 4. Support assembly; 41. Sliding rail; 42. Support shaft; 43. Compression spring. Detailed Implementation

[0021] 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.

[0022] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0023] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0024] Please see Figures 1-6 This utility model provides a technical solution:

[0025] A PE plastic product injection molding device includes a lower mold assembly 1 and an upper mold assembly 2. The upper mold assembly 2 is located on the upper side of the lower mold assembly 1, and a heat dissipation assembly 3 and a support assembly 4 are located on the left side of the lower mold assembly 1. The lower mold assembly 1 includes a worktable 11 and limiting plates 12. Four limiting plates 12 are fixedly connected to the upper side of the worktable 11, and a lower mold 13 is fixedly connected to the upper side of the worktable 11. A first heat dissipation frame 14 is fixedly connected inside the lower mold 13. The upper mold assembly 2 includes hydraulic rods 21 and transmission blocks 22. Two hydraulic rods 21 are fixedly connected to the upper side of the worktable 11, and transmission blocks 22 are fixedly connected to the upper side of each hydraulic rod 21. An upper mold 23 is fixedly connected between the two transmission blocks 22, and a second heat dissipation frame 24 is fixedly connected inside the upper mold 23. The heat dissipation assembly 3 includes a gas pump 31. A gas pump 31 is fixedly connected to the upper side of the workbench 11, and a gas pump 31 is fixedly connected to the exhaust port of the gas pump 31. A first diversion pipe 33 is fixedly connected to the right side of the gas pump 31. The air outlet of the first diversion pipe 33 is connected to the air inlet of the first heat sink 14. A flexible connecting pipe 34 is fixedly connected to the upper side of the gas pump 32. A second diversion pipe 35 is fixedly connected to the end of the flexible connecting pipe 34 away from the gas pump 32. The air outlet of the second diversion pipe 35 is connected to the air inlet of the second heat sink 24. The support assembly 4 includes a sliding rail 41 and a support shaft 42. A pair of sliding rails 41 are fixedly connected to the left side of the lower mold 13. A support shaft 42 is slidably connected between the two sliding rails 41. A pair of compression springs 43 are fixedly connected to the right side of the support shaft 42. The right end of the compression springs 43 is fixedly connected to the lower mold 13.

[0026] The height of the limiting plate 12 is greater than the sum of the heights of the lower mold 13 and the upper mold 23. All four corners of the lower mold 13 are fixedly connected to the limiting plate 12, and the four corners of the upper mold 23 are fitted to the limiting plate 12. The limiting plate 12 guides the upper mold 23, ensuring accurate closure between the upper and lower molds. The first heat sink 14 and the second heat sink 24 each have two air inlets on their left sides and two air outlets on their right sides. These allow for the guidance of rapidly flowing air, thus cooling the lower mold 13 and the upper mold 23. The opposing sides of the two hydraulic rods 21 are fixedly connected to the lower mold 13. The left half of the upper mold 23 has a filling port, and the right half has an exhaust port. Molten metal can be added through the filling port of the upper mold 23. The PE plastic is used to expel the gas in the injection cavity through the exhaust port of the upper mold 23. The upper side of the gas pump 31 is provided with an air intake, and the right side of the gas pump 31 is provided with an air exhaust port. The right side of the first diversion pipe 33 and the second diversion pipe 35 are each provided with two air supply ports. The flexible connecting pipe 34 can supply air to the second diversion pipe 35 that needs to move up and down, and then supply air to the first heat sink 14 and the second heat sink 24 through the first diversion pipe 33 and the second diversion pipe 35 respectively. The opposing sides of the two sliding rails 41 are provided with rectangular sliding grooves, and the front and rear sides of the support shaft 42 are provided with rectangular sliders. The flexible connecting pipe 34 contacts the support shaft 42. The elastic force of the compression spring 43 pushes the support shaft 42, and the support shaft 42 supports the flexible connecting pipe 34 to prevent the flexible connecting pipe 34 from getting tangled or contacting the lower mold 13 and the upper mold 23.

[0027] Workflow: Before use, fix the worktable 11 on the injection molding machine and connect the power supply. This device is equipped with an external controller, which is electrically connected to the hydraulic rod 21 and the gas pump 31 respectively. The operating status of the hydraulic rod 21 and the gas pump 31 can be adjusted by manually operating the external controller. All of the above are existing technologies. When the device is not in use, the hydraulic rod 21 retracts, and the lower side of the upper mold 23 and the lower mold 13 fit tightly together. The lower mold 13 and the upper mold 23 can form an injection cavity. At this time, the compression spring 43 is in a slightly compressed state. The support shaft 42, which is limited by the sliding rail 41, can push the flexible connecting tube 34 to the left to prevent the flexible connecting tube 34 from getting tangled, and at the same time prevent the flexible connecting tube 34 from tangling with the lower mold 13 and the upper mold. With contact 23, when using this device, the operator first inserts the injection gun of the injection molding machine into the injection port of the upper mold 23, and adds molten PE plastic into the injection cavity formed by the lower mold 13 and the upper mold 23 through the injection gun. The gas in the injection cavity is discharged through the vent of the upper mold 23. Then, the operator starts the gas pump 31 through the external controller, and the gas pump 31 delivers air to the distribution box 32, so that the air enters the first distribution pipe 33 and the flexible connecting pipe 34 respectively. The air entering the first distribution pipe 33 can enter the first heat sink 14, and the air entering the flexible connecting pipe 34 can enter the second heat sink 24 through the second distribution pipe 35. The air can enter the first heat sink 14 and the second heat sink 24. The rapid internal flow removes heat from the lower mold 13 and upper mold 23, allowing them to cool quickly. Then, the operator uses an external controller to extend two hydraulic rods 21 upwards simultaneously. These rods move the transmission block 22 upwards, which in turn moves the upper mold 23 upwards, exposing the cooled PE plastic injection molded part. The operator can then remove the part. At this point, the flexible connecting pipe 34 expands, and the support shaft 42, limited by the sliding rail 41, approaches the lower mold 13. The compression spring 43 is further compressed. Subsequently, the operator can use the external controller to retract the two hydraulic rods 21 simultaneously, causing the upper mold 23 to move downwards. The limiting plate 12 guides the upper mold 23, allowing it to cool rapidly. The lower mold 13 closes accurately, and the above steps can be repeated to mass-produce PE plastic injection molded parts. This device can divert air through the diversion box 32, and deliver air to the second diversion pipe 35 that needs to move up and down through the flexible connecting pipe 34. Then, air is delivered to the first heat sink 14 and the second heat sink 24 through the first diversion pipe 33 and the second diversion pipe 35 respectively. The rapidly flowing air cools the lower mold 13 and the upper mold 23. At the same time, the spring force of the compression spring 43 pushes the support shaft 42, and the support shaft 42 supports the flexible connecting pipe 34 to prevent the flexible connecting pipe 34 from getting tangled or contacting the lower mold 13 and the upper mold 23. This device has high cooling efficiency, which improves the overall production efficiency of PE plastic products.

[0028] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PE plastic product molding injection device, comprising a lower mold assembly (1) and an upper mold assembly (2), characterized in that: The lower mold assembly (1) has an upper mold assembly (2) on its upper side, a heat dissipation assembly (3) on its left side, and a support assembly (4) on its left side. The lower mold assembly (1) includes a worktable (11) and limiting plates (12). Four limiting plates (12) are fixedly connected to the upper side of the worktable (11). A lower mold (13) is fixedly connected to the upper side of the worktable (11). A first heat dissipation frame is fixedly connected inside the lower mold (13). 14), the upper mold assembly (2) includes hydraulic rods (21) and transmission blocks (22), two hydraulic rods (21) are fixedly connected to the upper side of the workbench (11), and transmission blocks (22) are fixedly connected to the upper side of each hydraulic rod (21). An upper mold (23) is fixedly connected between the two transmission blocks (22), and a second heat sink (24) is fixedly connected inside the upper mold (23). The heat sink assembly (3) includes a gas pump (31) and a distribution box (32). A gas pump (31) is fixedly connected to the upper side of the platform (11). A distribution box (32) is fixedly connected to the exhaust port of the gas pump (31). A first distribution pipe (33) is fixedly connected to the right side of the distribution box (32). The air outlet of the first distribution pipe (33) is connected to the air inlet of the first heat sink (14). A flexible connecting pipe (34) is fixedly connected to the upper side of the distribution box (32). A second distribution pipe (35) is fixedly connected to the end of the flexible connecting pipe (34) away from the distribution box (32). The air outlet of the second diversion pipe (35) is connected to the air inlet of the second heat sink (24). The support assembly (4) includes a sliding rail (41) and a support shaft (42). A pair of sliding rails (41) are fixedly connected to the left side of the lower mold (13). The support shaft (42) is slidably connected between the two sliding rails (41). A pair of compression springs (43) are fixedly connected to the right side of the support shaft (42). The right end of the compression springs (43) is fixedly connected to the lower mold (13).

2. The PE plastic product molding injection device according to claim 1, characterized in that: The height of the limiting plate (12) is greater than the sum of the heights of the lower mold (13) and the upper mold (23). The four corners of the lower mold (13) are fixedly connected to the limiting plate (12), and the four corners of the upper mold (23) are in contact with the limiting plate (12).

3. The PE plastic product molding injection device according to claim 1, characterized in that: The first heat sink (14) and the second heat sink (24) each have two air inlets on their left sides, and the first heat sink (14) and the second heat sink (24) each have two air outlets on their right sides.

4. The PE plastic product molding injection device according to claim 1, characterized in that: The two hydraulic rods (21) are fixedly connected to the lower mold (13) on opposite sides. The left half of the upper mold (23) is provided with a material injection port, and the right half of the upper mold (23) is provided with a vent.

5. The PE plastic product molding injection device according to claim 1, characterized in that: The gas pump (31) has an air intake on its upper side and an exhaust port on its right side. The first diversion pipe (33) and the second diversion pipe (35) each have two air supply ports on their right sides.

6. The PE plastic product molding injection device according to claim 1, characterized in that: The two sliding rails (41) are provided with rectangular sliding grooves on their opposing sides, and the support shaft (42) is provided with rectangular sliders on its front and rear sides. The flexible connecting tube (34) is in contact with the support shaft (42).

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