Quick-cooling injection mold for processing PP (polypropylene) packaging box

Abstract

The utility model relates to the technical field of injection molds, and discloses a quick-cooling injection mold for processing a PP packaging box, which comprises a mold base and a mold top seat, one side of the mold top seat is in threaded connection with a right support frame, and the bottom of the right support frame is fixedly connected with a workbench. And cooling mechanisms are arranged in the mold base and the mold top base. According to the rapid-cooling injection mold for PP packaging box machining, through the arrangement of the mold base, the mold top base and the cooling mechanism, when the mold is pressurized, a water pump is started, the water pump pumps liquid in the cooling tower, the liquid flows through the mold base and the mold top base through a liquid inlet pipe and then flows into the cooling tower through a liquid outlet pipe for cooling, and the water pump enables cooling liquid to circularly flow; and compared with a traditional linear cooling channel, the surface area, in contact with the mold, of the cooling channel is greatly increased, the heat dissipation efficiency is improved, and therefore the injection mold can be rapidly cooled.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to an injection mold for processing PP packaging boxes with rapid cooling. Background Technology

[0002] Injection molds are tools used to produce plastic products, giving them a complete structure and precise dimensions. Injection molding is a processing method used for mass production of certain complex-shaped parts. Specifically, it refers to injecting molten plastic into the mold cavity under high pressure by an injection molding machine, and then cooling and solidifying it to obtain the molded product. In order to improve product quality, the cooling and solidification of injection molds requires specific cooling structures.

[0003] A rapidly cooling injection mold is disclosed in publication number CN217531770U. This rapidly cooling injection mold includes a supporting base plate, a supporting frame, a fixed mounting plate, and a rapidly cooling injection mold assembly. The assembly includes a fixed injection mold, a fixed connecting groove, a lifting hydraulic rod, a movable injection mold, an injection pipe, a connecting fixing block, a cooling water storage box, a water injection pipe, a bolt-plug drain pipe, a ring plate connecting plate, a supporting ring plate, a motor support shaft, a cooling motor, a cooling transmission shaft, and rotating cooling fan blades. This utility model belongs to the field of injection mold technology, specifically referring to a rapidly cooling injection mold. It effectively solves the problems of inconvenient rapid cooling, low work efficiency, low automation, and time-consuming and labor-intensive processes in current injection molds. It achieves the goal of convenient and rapid cooling, high work efficiency, high automation, and time and labor saving, making it a very practical rapidly cooling injection mold.

[0004] While the aforementioned patent achieves the goals of rapid cooling of injection molds, high efficiency, high automation, and time and labor savings, the device only rapidly cools the mold base, does not cool the mold top, and does not have an automatic demolding function. Therefore, the automation level is low, it is time-consuming, and increases labor costs. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a fast-cooling injection mold for processing PP packaging boxes, which solves the problems mentioned in the background art, such as the device only rapidly cooling the mold base, not the mold top seat, and not achieving automatic demolding function, resulting in low automation, time consumption, and increased labor costs.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a rapid-cooling injection mold for processing PP packaging boxes, comprising a mold base and a mold top, a right support frame threadedly connected to one side of the mold top, a worktable fixedly connected to the bottom of the right support frame, a cooling mechanism provided inside both the mold base and the mold top, a demolding mechanism penetrating the surface of the mold base, and a placement mechanism provided on the surface of the worktable. The cooling mechanism includes a cooling channel formed inside the mold base and the mold top, an inlet pipe penetrating one side of the cooling channel, a water pump penetrating one side of the inlet pipe, a cooling tower penetrating one side of the water pump, an outlet pipe penetrating one side of the cooling tower, and an outlet pipe penetrating one side of the cooling channel. The demolding mechanism includes an inner rod penetrating the mold base. A spring is fitted onto the surface of the inner rod. One end of the inner rod is fixedly connected to a movable base. A dome column is threaded onto one side of the movable base. Four sets of external connecting rods are fixedly connected inside the mold base. One end of each external connecting rod is fixedly connected to a cylinder top plate. Four sets of internal connecting rods are fixedly connected to one side of the cylinder top plate. The four sets of internal connecting rods are fixedly connected to one side of the mold base. A circular hole is opened in the middle of the cylinder top plate. Four sets of through rods are fixedly connected to one side of the cylinder top plate. A middle support frame is threaded through the surface of the four sets of through rods. A top base is fixedly connected to one side of the middle support frame. The storage mechanism includes a storage opening on the surface of the workbench. Two limit strips are fixed to the bottom of the workbench. A storage box is provided in the middle of the limit strips. Four sets of universal wheels are threaded onto the bottom of the storage box. A handle is fixedly connected to one side of the storage box.

[0009] As a further embodiment of this utility model, a cylinder base plate is fixedly connected to one side of the four sets of through rods, and a pressurizing cylinder is fixedly connected to one side of the cylinder base plate. A left support frame is threadedly connected to the bottom of the pressurizing cylinder. The left support frame and the middle support frame are both fixedly connected to the top of the workbench. The setting of the left support frame and the middle support frame plays the role of supporting and fixing the injection mold.

[0010] As a further embodiment of this utility model, the diameter of the circular hole is greater than the diameter of the dome column, the diameter of the circular hole is greater than the diameter of the top base, and the height of the dome column is greater than the total height of the cylinder top plate. The dome column serves to open the movable base.

[0011] As a further embodiment of this utility model, the surface of the right support frame is provided with four sets of support holes, and the four sets of external connecting rods are connected through the inside of the support holes. The support holes serve to fix the external connecting rods.

[0012] As a further embodiment of this utility model, an injection tube is provided in the middle of the right support frame, and an injection port is provided in the middle of the mold top seat. The injection port is connected to one end of the injection tube. The injection tube serves to open a material feeding channel.

[0013] As a further embodiment of this utility model, two sets of lower molds are fixedly connected to one side of the mold base, and two sets of mold holes are opened on one side of the mold top seat. The lower molds and mold holes serve to shape the packaging box.

[0014] As a further embodiment of this utility model, the lower model and the model hole are matched in position and size, and both sets of model holes are connected through one end of the injection port. The setting of the injection port serves to release material.

[0015] (III) Beneficial Effects

[0016] This utility model provides an injection mold for rapidly cooling PP packaging box processing, which has the following features:

[0017] Beneficial effects:

[0018] 1. This rapidly cooling injection mold for PP packaging box processing, through the setting of mold base, mold top seat and cooling mechanism, starts the water pump when the mold is pressurized. The water pump draws liquid from the cooling tower, flows through the inlet pipe through the mold base and mold top seat, and then flows into the cooling tower through the outlet pipe for cooling. The water pump makes the coolant circulate, ensuring that the coolant can quickly remove heat. Compared with the traditional straight cooling channel, this cooling channel design has a significantly increased surface area in contact with the mold, which improves heat dissipation efficiency, thereby achieving rapid cooling of the injection mold.

[0019] 2. This rapid-cooling injection mold for processing PP packaging boxes, through the setting of a pressure cylinder, mold base, demolding mechanism, and placement mechanism, allows the pressure cylinder to move the cylinder top plate to the left during mold demolding. When the dome column contacts the top base, the cylinder top plate continues to move to the left, and the movable base slides to the right along the inner connecting rod. The spring is compressed, and the inner rod inside the spring moves outward, pushing the PP packaging box outward and into the placement box below. The placement box can be moved and pulled out, saving time and effort, thereby achieving automatic demolding and collection functions, reducing the labor intensity of workers, lowering labor costs, and improving production efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the cooling mechanism of this utility model;

[0022] Figure 3 This is a schematic diagram of the demolding mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the storage mechanism of this utility model.

[0024] In the diagram: 1. Mold base; 2. Mold top seat; 3. Right support frame; 4. Worktable; 5. Cooling mechanism; 501. Cooling channel; 502. Liquid inlet pipe; 503. Water pump; 504. Cooling tower; 505. Liquid outlet pipe; 6. Demolding mechanism; 601. Inner rod; 602. Spring; 603. Movable base; 604. Dome column; 605. Outer connecting rod; 606. Cylinder top plate; 607. Inner... 608. Connecting rod; 609. Round hole; 610. Through rod; 611. Middle support frame; 612. Top base; 7. Storage mechanism; 701. Storage opening; 702. Limiting strip; 703. Storage box; 704. Casters; 705. Handle; 8. Cylinder base plate; 9. Pressurized cylinder; 10. Left support frame; 11. Support hole; 12. Injection tube; 13. Injection port; 14. Lower mold; 15. Mold hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] Please see Figures 1 to 4This utility model provides a technical solution: a rapid-cooling injection mold for processing PP packaging boxes, including a mold base 1 and a mold top 2. A right support frame 3 is threadedly connected to one side of the mold top 2, and a workbench 4 is fixedly connected to the bottom of the right support frame 3. Cooling mechanisms 5 are provided inside both the mold base 1 and the mold top 2. A demolding mechanism 6 is connected through the surface of the mold base 1. A placement mechanism 7 is provided on the surface of the workbench 4. The cooling mechanism 5 includes a cooling channel 501 opened inside the mold base 1 and the mold top 2. An inlet pipe 502 is connected through one side of the cooling channel 501. A water pump 503 is connected through one side of the inlet pipe 502. A cooling tower 504 is connected through one side of the water pump 503. An outlet pipe 505 is connected through one side of the cooling tower 504 and is connected through one side of the cooling channel 501. The demolding mechanism 6 includes an inner rod 601 connected through the mold base 1. A spring 602 is sleeved on the surface of the inner rod 601. One end of mold base 1 is fixedly connected to a movable base 603. A dome post 604 is threadedly connected to one side of the movable base 603. Four sets of external connecting rods 605 are fixedly connected inside the mold base 1. One end of each external connecting rod 605 is fixedly connected to a cylinder top plate 606. Four sets of internal connecting rods 607 are fixedly connected to one side of the cylinder top plate 606. The four sets of internal connecting rods 607 are fixedly connected to one side of the mold base 1. A circular hole 608 is opened in the middle of the cylinder top plate 606. One side of the cylinder top plate 606 is fixed... The workbench 4 is connected by four sets of through rods 609, and a middle support frame 610 is connected through the surface of the four sets of through rods 609. A top base 611 is fixedly connected to one side of the middle support frame 610. The storage mechanism 7 includes a storage opening 701 opened on the surface of the workbench 4. Two sets of limiting strips 702 are fixed to the bottom of the workbench 4. A storage box 703 is provided in the middle of the limiting strips 702. Four sets of universal wheels 704 are threadedly connected to the bottom of the storage box 703. A handle 705 is fixedly connected to one side of the storage box 703.

[0027] A cylinder base plate 8 is fixedly connected to one side of the four sets of through rods 609. A pressurizing cylinder 9 is fixedly connected to one side of the cylinder base plate 8. A left support frame 10 is threadedly connected to the bottom of the pressurizing cylinder 9. The left support frame 10 and the middle support frame 610 are both fixedly connected to the top of the worktable 4. The setting of the left support frame 10 and the middle support frame 610 plays the role of supporting and fixing the injection mold.

[0028] The diameter of the round hole 608 is larger than the diameter of the dome post 604, the diameter of the round hole 608 is larger than the diameter of the top base 611, and the height of the dome post 604 is greater than the total height of the cylinder top plate 606. The dome post 604 serves to open the movable base 603.

[0029] As a further embodiment of this utility model, four sets of support holes 11 are provided on the surface of the right support frame 3, and four sets of external connecting rods 605 are connected through the inside of the support holes 11. The support holes 11 serve to fix the external connecting rods 605.

[0030] As a further embodiment of this utility model, an injection tube 12 is provided in the middle of the right support frame 3, and an injection port 13 is provided in the middle of the mold top seat 2. The injection port 13 is connected to one end of the injection tube 12. The setting of the injection tube 12 serves to open a material feeding channel.

[0031] As a further embodiment of this utility model, two sets of lower molds 14 are fixedly connected to one side of the mold base 1, and two sets of mold holes 15 are opened on one side of the mold top seat 2. The lower molds 14 and the mold holes 15 are set to achieve the function of shaping the packaging box.

[0032] As a further embodiment of this utility model, the lower model 14 and the model hole 15 are matched in position and size, and both sets of model holes 15 are connected through one end of the injection port 13. The injection port 13 serves to release material.

[0033] In this invention, the working steps of the device are as follows:

[0034] First step: When the mold is pressurized, the water pump 503 is started. The water pump 503 draws liquid from the cooling tower 504 and flows through the liquid inlet pipe 502 through the mold base 1 and the mold top seat 2. Then, it flows into the cooling tower 504 through the liquid outlet pipe 505 for cooling. The water pump 503 makes the coolant circulate, ensuring that the coolant can quickly remove heat. Compared with the traditional straight cooling channel 501, this cooling channel 501 design has a significantly increased surface area in contact with the mold, which improves the heat dissipation efficiency.

[0035] The second step: When demolding the mold, the pressure cylinder 9 drives the cylinder top plate 606 to move to the left. After the dome column 604 contacts the top base 611, the cylinder top plate 606 continues to move to the left. The movable base 603 slides to the right along the inner connecting rod 607. The spring 602 is compressed. The inner rod 601 inside the spring 602 moves outward to push the PP packaging box outward and fall into the storage box 703 below. The storage box 703 can be moved and pulled out.

[0036] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0037] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0038] 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 rapid cooling injection mold for processing PP packaging boxes, comprising a mold base (1) and a mold top (2), characterized in that: The side of the mold top base (2) is threadedly connected with a right support frame (3), the bottom of the right support frame (3) is fixedly connected with a workbench (4), the interiors of the mold base (1) and the mold top base (2) are both provided with cooling mechanisms (5), the surface of the mold base (1) is penetrated through with a demolding mechanism (6), the surface of the workbench (4) is provided with a storage mechanism (7), The cooling mechanism (5) comprises cooling channels (501) provided in the interiors of the mold base (1) and the mold top base (2), one side of the cooling channel (501) is penetrated through with an inlet pipe (502), one side of the inlet pipe (502) is penetrated through with a water pump (503), one side of the water pump (503) is penetrated through with a cooling tower (504), one side of the cooling tower (504) is penetrated through with an outlet pipe (505), and the outlet pipe (505) is penetrated through on one side of the cooling channel (501), The demolding mechanism (6) comprises an inner rod (601) penetrated through the mold base (1), the surface of the inner rod (601) is sleeved with a spring (602), one end of the inner rod (601) is fixedly connected with a movable base (603), one side of the movable base (603) is threadedly connected with a dome column (604), the interior of the mold base (1) is fixedly connected with four groups of outer connecting rods (605), one end of the outer connecting rod (605) is fixedly connected with a cylinder top plate (606), one side of the cylinder top plate (606) is fixedly connected with four groups of inner connecting rods (607), four groups of the inner connecting rods (607) are fixedly connected on one side of the mold base (1), the middle part of the cylinder top plate (606) is provided with a circular hole (608), one side of the cylinder top plate (606) is fixedly connected with four groups of penetrating rods (609), the surfaces of four groups of the penetrating rods (609) are penetrated through with a middle support frame (610), one side of the middle support frame (610) is fixedly connected with a top base (611), The storage mechanism (7) comprises a storage opening (701) provided on the surface of the workbench (4), the bottom of the workbench (4) is fixedly connected with two groups of limiting strips (702), the middle part of the limiting strip (702) is provided with a storage box (703), the bottom of the storage box (703) is threadedly connected with four groups of universal wheels (704), and one side of the storage box (703) is fixedly connected with a handle (705).

2. The rapid-cooling PP packaging box processing injection mold according to claim 1, characterized in that: One side of four groups of the penetrating rods (609) is fixedly connected with a cylinder bottom plate (8), one side of the cylinder bottom plate (8) is fixedly connected with a pressurizing cylinder (9), the bottom of the pressurizing cylinder (9) is threadedly connected with a left support frame (10), and the left support frame (10) and the middle support frame (610) are both fixedly connected above the workbench (4).

3. The rapid cooling PP packaging box processing injection mold according to claim 1, characterized in that: The diameter of the circular hole (608) is greater than the diameter of the dome column (604), the diameter of the circular hole (608) is greater than the diameter of the top base (611), and the height of the dome column (604) is greater than the total height of the cylinder top plate (606).

4. The rapid-cooling PP packaging box processing injection mold according to claim 1, characterized in that: The surface of the right support frame (3) is provided with four groups of support holes (11), and four groups of the outer connecting rods (605) are connected to the inside of the support holes (11) in a penetrating manner.

5. The rapid-cooling PP packaging box processing injection mold according to claim 1, characterized in that: The middle part of the right support frame (3) is provided with an injection pipe (12), and the middle part of the mold top base (2) is provided with an injection port (13) in a penetrating manner.

6. The rapid-cooling PP packaging box processing injection mold according to claim 1, characterized in that: One side of the mold base (1) is fixedly connected with two groups of lower models (14), and one side of the mold top base (2) is provided with two groups of model holes (15).

7. The quick-cooling PP packaging box processing injection mold according to claim 6, characterized in that: The position and size of the lower model (14) and the model hole (15) are matched, and two groups of the model holes (15) are connected to one end of the injection port (13) in a penetrating manner.

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