Plastic bucket forming mold capable of achieving rapid demolding

Abstract

The utility model discloses a plastic bucket forming mould capable of demoulding quickly, which relates to the field of plastic bucket manufacturing and comprises two support plates, first telescopic rods are fixedly mounted on the sides, close to each other, of the two support plates, and mould components are fixedly mounted at the ends, close to each other, of the two first telescopic rods. A top plate is fixedly installed above the two supporting plates and fixedly connected with the two supporting plates, an injection molding pipe is fixedly installed on the bottom face, corresponding to the mold assembly, of the top plate, a forming plate corresponding to the mold assembly is fixedly installed on the outer surface of the injection molding pipe, and connecting plates are fixedly installed on the back faces of the supporting plates. The demolding assembly is fixedly installed on the front face of the connecting plate corresponding to the mold assembly, the mold assembly rapidly cools materials entering the position between the mold assembly and the forming plate so as to accelerate plastic barrel forming, the water inlet pipe is arranged at the bottom of the cooling cavity so that the left mold and the right mold can be fully cooled, and then the purpose of rapid cooling is achieved.

Description

Technical Field

[0001] The utility model relates to the field of plastic bucket manufacturing, and particularly relates to a plastic bucket forming mold with rapid demolding. Background Art

[0002] The materials of plastic buckets are mostly made by blow molding and injection molding of plastics such as polyethylene and polypropylene. They are used for the outer packaging of liquids and solids in industries such as Shanghai plastic products, chemical industry, pesticides, medicine, food, hardware electronics, and mechanical and electrical industries. To improve production efficiency, plastic buckets are mostly used for the storage and transportation of various liquids. They have good characteristics for the packaging of special dangerous goods. They are not easy to break, do not rust, are lightweight, etc. Moreover, they have excellent oil resistance and strong corrosion resistance, and are mostly used for the packaging of dangerous goods that require heat preservation, moisture protection, pressure resistance, and corrosion resistance. The materials of plastic buckets are mostly made by blow molding, injection molding, thermoforming, and rotational molding of plastics such as polyethylene, polypropylene, and polyester.

[0003] In the production and manufacturing process of most existing plastic buckets, the melted injection molding material is placed in the injection mold, and then manual demolding is carried out by workers. Manual demolding is slow, greatly increasing the labor burden on workers. Moreover, due to the plastic bucket being in the injection mold after injection molding, the heat dissipation effect is poor, the injection molding speed is slow, the efficiency is low, and it is not convenient for manual demolding. Therefore, the utility model proposes a plastic bucket forming mold with rapid demolding. Summary of the Utility Model

[0004] To solve the above technical problems, a plastic bucket forming mold with rapid demolding is provided, which solves the problems of poor current heat dissipation effect and manual demolding by workers.

[0005] To achieve the above purposes, the technical solution adopted by the utility model is as follows:

[0006] A plastic bucket forming mold with rapid demolding includes two support plates. On one side of the two support plates close to each other, a first telescopic rod is fixedly installed. At one end of the two first telescopic rods close to each other, a mold assembly is fixedly installed. Above the two support plates, a top plate is fixedly installed. The top plate is fixedly connected to both support plates. At the bottom surface of the top plate corresponding to the mold assembly, an injection pipe is fixedly installed. On the outer surface of the injection pipe, a forming plate corresponding to the mold assembly is fixedly installed. On the back surface of the support plate, a connecting plate is fixedly installed. On the front surface of the connecting plate corresponding to the mold assembly, a demolding assembly is fixedly installed. At the bottom surface of the support plate, a positioning plate is fixedly installed. Inside the positioning plate, a collection assembly is provided.

[0007] Preferably, the mold assembly includes a left mold and a right mold. A plurality of first insertion grooves are formed on the side of the left mold close to the right mold. The plurality of first insertion grooves are linearly distributed along the bottom edge line of the left mold. A second insertion rod is fixedly installed between two adjacent first insertion grooves. A plurality of first insertion rods corresponding to the first insertion grooves are fixedly installed on the side of the right mold close to the left mold. A second insertion groove is formed on the side of the right mold corresponding to the second insertion rod. Cooling cavities are formed inside both the left mold and the right mold.

[0008] Preferably, water inlet pipes are fixedly installed on the bottom surfaces of both the left mold and the right mold. The water inlet pipes are communicated with the cooling cavities. One end of the water inlet pipe away from the cooling cavity is communicated with a first hose. Water outlet pipes are fixedly installed on the outer surfaces of both the left mold and the right mold. The water outlet pipes are communicated with the cooling cavities. One end of the water outlet pipe away from the cooling cavity is communicated with a second hose.

[0009] Preferably, the demolding assembly includes a main board. Two moving grooves are formed on the side of the main board close to the mold assembly. The two moving grooves are symmetrically distributed about the center line of the main board. Lead screws are rotatably installed at the bottoms of the inner walls of the two moving grooves. Moving blocks are sleeved on the outer surfaces of the lead screws. A second telescopic rod is fixedly installed on the side of the moving block close to the mold assembly. One end of the second telescopic rod away from the moving block is fixedly installed with a first buffer plate corresponding to the forming plate.

[0010] Preferably, the collection assembly includes a collection box. A plurality of moving wheels are rotatably installed on the bottom surface of the collection box. The plurality of moving wheels are symmetrically distributed about the center line of the collection box. A pull rod is fixedly installed on the side of the collection box. A buffer ring is fixedly installed on the inner wall of the collection box.

[0011] Preferably, second buffer plates are fixedly installed on the sides of both the left mold and the right mold close to each other.

[0012] Preferably, the materials of both the first hose and the second hose are polyurethane.

[0013] Compared with the prior art, the advantages of the present utility model are as follows: By setting the mold assembly, the mold assembly quickly cools the material entering between the mold assembly and the forming plate, thereby accelerating the completion of the plastic bucket forming. The coolant cools the material in turn through the first hose, the water inlet pipe, the cooling cavity, the water outlet pipe and the second hose. The water inlet pipe is arranged at the bottom of the cooling cavity so that the left mold and the right mold can be fully cooled, thereby achieving the purpose of rapid cooling. By setting the demolding assembly, the lead screw in the demolding assembly drives the second telescopic rod on the moving plate to quickly reach the predetermined position, and the second telescopic rod unfolds, so that the first buffer plate corresponds to the formed plastic bucket. The lead screw rotates in reverse to make the first buffer plate push the plastic bucket away from the forming plate, realizing that the plastic bucket can be demolded without manual operation. Brief Description of the Drawings

[0014] Figure 1 It is a three-dimensional structure schematic diagram of the present utility model;

[0015] Figure 2 It is an exploded view of the present utility model;

[0016] Figure 3 It is an exploded view of the mold assembly in the present utility model;

[0017] Figure 4 It is an exploded view of the mold assembly in the present utility model from another perspective;

[0018] Figure 5 It is an internal structure diagram of the right mold in the present utility model;

[0019] Figure 6 It is a three-dimensional structure schematic diagram of the demolding assembly in the present utility model;

[0020] Figure 7 It is a three-dimensional structure schematic diagram of the collection assembly in the present utility model.

[0021] The reference numerals in the figure are: 1, support plate; 2, first telescopic rod; 3, mold assembly; 4, top plate; 5, injection pipe; 6, forming plate; 7, connecting plate; 8, demolding assembly; 9, positioning plate; 10, collection assembly; 11, left mold; 12, right mold; 13, first insertion groove; 14, second insertion rod; 15, first insertion rod; 16, second insertion groove; 17, cooling cavity; 18, water inlet pipe; 19, first hose; 20, water outlet pipe; 21, second hose; 22, main board; 23, moving groove; 24, lead screw; 25, moving block; 26, second telescopic rod; 27, first buffer plate; 28, collection box; 29, moving wheel; 30, pull rod; 31, buffer ring; 32, second buffer plate. Detailed Embodiments

[0022] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.

[0023] Refer to Figures 1-7As shown in the figure, a plastic bucket forming mold with rapid demolding includes two support plates 1. On one side of the two support plates 1 close to each other, a first telescopic rod 2 is fixedly installed. At one end of the two first telescopic rods 2 close to each other, a mold assembly 3 is fixedly installed. Above the two support plates 1, a top plate 4 is fixedly installed. The top plate 4 is fixedly connected to both support plates 1. At the bottom surface of the top plate 4 corresponding to the mold assembly 3, an injection pipe 5 is fixedly installed. On the outer surface of the injection pipe 5, a forming plate 6 corresponding to the mold assembly 3 is fixedly installed. The first telescopic rod 2 pushes the mold assembly 3 to wrap the forming plate 6. The molten material enters between the mold assembly 3 and the forming plate 6 through the injection pipe 5. When the molten material is filled, the mold assembly 3 rapidly cools the material to complete the forming of the plastic bucket. On the back surface of the support plate 1, a connecting plate 7 is fixedly installed. On the front surface of the connecting plate 7 corresponding to the mold assembly 3, a demolding assembly 8 is fixedly installed. The demolding assembly 8 enables the formed material to rapidly separate from the forming plate 6. At the bottom surface of the support plate 1, a positioning plate 9 is fixedly installed. Inside the positioning plate 9, a collection assembly 10 is provided. The formed plastic bucket enters the collection assembly 10. When the plastic bucket fills the collection assembly 10, the staff can rapidly replace the collection assembly 10.

[0024] As Figures 3-4 shown in the figure, the mold assembly 3 includes a left mold 11 and a right mold 12. On one side of the left mold 11 close to the right mold 12, a plurality of first insertion grooves 13 are opened. The plurality of first insertion grooves 13 are linearly distributed along the bottom edge line of the left mold 11. Between two adjacent first insertion grooves 13 close to each other, a second insertion rod 14 is fixedly installed. On one side of the right mold 12 close to the left mold 11, a number of first insertion rods 15 corresponding to the first insertion grooves 13 are fixedly installed. On the side surface of the right mold 12 corresponding to the second insertion rod 14, a second insertion groove 16 is opened. When the first insertion rod 15 enters the first insertion groove 13, the second insertion rod 14 enters the second insertion groove 16 at the same time, ensuring high-precision alignment when the mold is closed and guaranteeing the accuracy of plastic bucket forming. Inside both the left mold 11 and the right mold 12, a cooling cavity 17 is opened. The coolant in the cooling cavity 17 rapidly cools the left mold 11 and the right mold 12.

[0025] As Figure 5 shown in the figure, on the bottom surface of both the left mold 11 and the right mold 12, a water inlet pipe 18 is fixedly installed. The water inlet pipe 18 is communicated with the cooling cavity 17. At one end of the water inlet pipe 18 far from the cooling cavity 17, a first hose 19 is communicated. On the outer surface of both the left mold 11 and the right mold 12, a water outlet pipe 20 is fixedly installed. The water outlet pipe 20 is communicated with the cooling cavity 17. At one end of the water outlet pipe 20 far from the cooling cavity 17, a second hose 21 is communicated. The coolant sequentially enters the cooling cavity 17 through the first hose 19 and the water inlet pipe 18. The coolant is slowly injected from the bottom of the cooling cavity 17, enabling the coolant to fully contact the left mold 11 and the right mold 12. When the cooling cavity 17 is filled, it leaves through the water outlet pipe 20 and the second hose 21.

[0026] As Figure 6 shown, the demoulding assembly 8 includes a main board 22. Two moving grooves 23 are formed on one side of the main board 22 close to the mould assembly 3. The two moving grooves 23 are symmetrically distributed about the center line of the main board 22. Lead screws 24 are rotatably installed at the bottoms of the inner walls of the two moving grooves 23. Moving blocks 25 are sleeved on the outer surfaces of the lead screws 24. A second telescopic rod 26 is fixedly installed on one side of the moving block 25 close to the mould assembly 3. One end of the second telescopic rod 26 away from the moving block 25 is fixedly installed with a first buffer plate 27 corresponding to the forming plate 6. The dropped plastic bucket impacts on the surface of the first buffer plate 27. The lead screw 24 drives the second telescopic rod 26 on the moving plate to quickly reach a predetermined position, and the second telescopic rod 26 expands, so that the first buffer plate 27 corresponds to the formed plastic bucket. The lead screw 24 rotates reversely to make the first buffer plate 27 push the plastic bucket away from the forming plate 6. The first buffer plate 27 prevents the just-formed plastic bucket from being damaged during the pushing process.

[0027] As Figure 7 shown, the collection assembly 10 includes a collection box 28. A plurality of moving wheels 29 are rotatably installed on the bottom surface of the collection box 28. The plurality of moving wheels 29 are symmetrically distributed about the center line of the collection box 28. A pull rod 30 is fixedly installed on the side surface of the collection box 28. When the collection box 28 is filled with plastic buckets, the staff pushes the collection assembly 10 through the pull rod 30 to complete the replacement of the collection assembly 10. A buffer ring 31 is fixedly installed on the inner wall of the collection box 28. The buffer ring 31 absorbs the kinetic energy when the plastic bucket falls, preventing the plastic bucket from popping out of the device under the action of the impact force and preventing the plastic bucket from being damaged under the action of the impact force.

[0028] As Figures 3-4 shown, second buffer plates 32 are fixedly installed on the sides of the left mould 11 and the right mould 12 close to each other. The second buffer plates 32 prevent the left mould 11 and the right mould 12 from being damaged due to collision when they come into contact, and can further improve the tightness between the left mould 11 and the right mould 12.

[0029] As Figures 1-5As shown, the materials of the first hose 19 and the second hose 21 are both polyurethane. 1. The polyurethane material has good oil resistance and corrosion resistance, which means that the first hose 19 and the second hose 21 can maintain the stability of their structures and performances even when contacting cooling water containing oils or other chemical substances, and are not easily corroded or damaged; 2. The polyurethane hoses have excellent abrasion resistance, which means that they can withstand long-term use and frequent bending, twisting and other actions without being easily worn or damaged, ensuring that the first hose 19 and the second hose 21 can still work during long-term bending; 3. The polyurethane hoses have good elasticity, which enables them to easily cope with the expansion and deformation caused by temperature changes, pressure changes or vibrations, etc.; 4. The polyurethane material can still maintain good elasticity and flexibility at low temperatures, which enables the first hose 19 and the second hose 21 to work properly in low-temperature environments.

[0030] Working principle: The two first telescopic rods 2 respectively push the left mold 11 and the right mold 12, so that when the first insertion rods 15 on the left mold 11 and the right mold 12 enter the first insertion slots 13, the second insertion rods 14 enter the second insertion slots 16 at the same time, and the two second buffer plates 32 abut against each other. After the left mold 11 and the right mold 12 completely wrap the forming plate 6, the molten material enters between the left mold 11, the right mold 12 and the forming plate 6 through the injection pipe 5. When the molten material is filled, the cooling liquid sequentially passes through the first hose 19, the water inlet pipe 18, the cooling cavity 17, the water outlet pipe 20 and the second hose 21 to cool the material. After the material is completely cooled, the first telescopic rod 2 contracts to separate the left mold 11 and the right mold 12. At the same time, the lead screw 24 drives the second telescopic rod 26 on the moving plate to quickly reach the predetermined position, and the second telescopic rod 26 expands, so that the first buffer plate 27 corresponds to the formed plastic bucket. The lead screw 24 rotates reversely to make the first buffer plate 27 push the plastic bucket away from the forming plate 6, and the separated plastic bucket falls into the buffer ring 31 in the collection box 28.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic bucket forming mold for rapid demolding, comprising two support plates (1), characterized in that: On one side of the two support plates (1) close to each other, a first telescopic rod (2) is fixedly installed. At one end of the two first telescopic rods (2) close to each other, a mold assembly (3) is fixedly installed. Above the two support plates (1), a top plate (4) is fixedly installed. The top plate (4) is fixedly connected to both support plates (1). At the bottom surface of the top plate (4) corresponding to the mold assembly (3), an injection pipe (5) is fixedly installed. On the outer surface of the injection pipe (5), a forming plate (6) corresponding to the mold assembly (3) is fixedly installed. On the back surface of the support plate (1), a connecting plate (7) is fixedly installed. On the front surface of the connecting plate (7) corresponding to the mold assembly (3), a demolding assembly (8) is fixedly installed. At the bottom surface of the support plate (1), a positioning plate (9) is fixedly installed. Inside the positioning plate (9), a collection assembly (10) is provided.

2. A plastic bucket forming mold for rapid demolding according to claim 1, characterized in that: The mold assembly (3) includes a left mold (11) and a right mold (12). On one side of the left mold (11) close to the right mold (12), a plurality of first insertion grooves (13) are formed. The plurality of first insertion grooves (13) are linearly distributed along the bottom edge line of the left mold (11). Between two adjacent first insertion grooves (13) close to each other, a second insertion rod (14) is fixedly installed. On one side of the right mold (12) close to the left mold (11), a number of first insertion rods (15) corresponding to the first insertion grooves (13) are fixedly installed. On the side surface of the right mold (12) corresponding to the second insertion rod (14), a second insertion groove (16) is formed. Inside both the left mold (11) and the right mold (12), a cooling cavity (17) is formed.

3. A plastic bucket forming mold with rapid demolding according to claim 2, characterized in that: At the bottom surface of both the left mold (11) and the right mold (12), a water inlet pipe (18) is fixedly installed. The water inlet pipe (18) is communicated with the cooling cavity (17). At one end of the water inlet pipe (18) away from the cooling cavity (17), a first flexible hose (19) is communicated. On the outer surface of both the left mold (11) and the right mold (12), a water outlet pipe (20) is fixedly installed. The water outlet pipe (20) is communicated with the cooling cavity (17). At one end of the water outlet pipe (20) away from the cooling cavity (17), a second flexible hose (21) is communicated.

4. A plastic bucket forming mold with rapid demolding according to claim 1, characterized in that: The demolding assembly (8) includes a main board (22). On one side of the main board (22) close to the mold assembly (3), two moving grooves (23) are formed. The two moving grooves (23) are symmetrically distributed about the center line of the main board (22). At the bottom of the inner walls of the two moving grooves (23), a lead screw (24) is rotatably installed. A moving block (25) is sleeved on the outer surface of the lead screw (24). On one side of the moving block (25) close to the mold assembly (3), a second telescopic rod (26) is fixedly installed. At one end of the second telescopic rod (26) away from the moving block (25), a first buffer plate (27) corresponding to the forming plate (6) is fixedly installed.

5. A plastic bucket forming mold with rapid demolding according to claim 1, characterized in that: The collection component (10) includes a collection box (28), and a plurality of moving wheels (29) are rotatably installed on the bottom surface of the collection box (28). The plurality of moving wheels (29) are symmetrically distributed about the center line of the collection box (28). A pull rod (30) is fixedly installed on the side surface of the collection box (28), and a buffer ring (31) is fixedly installed on the inner wall of the collection box (28).

6. A plastic bucket forming mold for rapid demolding according to claim 2, characterized in that: Second buffer plates (32) are fixedly installed on one side of the left mold (11) and the right mold (12) that are close to each other.

7. A plastic bucket forming mold for rapid demolding according to claim 3, characterized in that: The first hose (19) and the second hose (21) are both made of polyurethane.

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