Plastic bucket mold convenient to demold

Abstract

The utility model discloses a plastic bucket mold convenient to demold, and relates to the technical field of plastic molds. The mold comprises a frame, a first mold body and a second mold body are arranged in the frame in a sliding fit mode, and an auxiliary assembly is arranged in the first mold body. The auxiliary assembly comprises an injection molding cavity formed in one side of the second mold, a blocking column arranged on one side of the first mold, a top plate arranged at the end of the blocking column in a sliding fit mode, and a rotating rod arranged in the blocking column in a rotating fit mode. The second mold and the first mold move towards the outer side, then the blocking column gradually gets away from the interior of the injection molding cavity, meanwhile, the second toothed plate slides in the direction of the second mold, the rotating rod rotates to drive the first toothed plate to slide, the first toothed plate drives the top plate to move in the direction of the second mold, and the top plate gets away from the blocking column; and the formed plastic bucket can be conveniently, rapidly and completely demoulded, so that the processing efficiency is realized and improved.

Description

Technical Field

[0001] This utility model belongs to the field of plastic molds, specifically, it relates to a plastic bucket mold that is easy to demold. Background Technology

[0002] Plastic buckets are widely used due to their good corrosion resistance, rust resistance, and light weight. The production of plastic buckets often uses the "blowing" method, in which the semi-finished plastic bucket raw material, which is in a high-temperature state, is placed in a mold, and the raw material is bonded to the inner wall of the mold by "blowing". Thus, the plastic bucket is manufactured according to the shape of the mold cavity. With the continuous maturation of plastic bucket production technology, the plastic bucket molding mold has also been greatly optimized.

[0003] Chinese Patent CN221736999U discloses a plastic bucket mold for easy demolding, belonging to the field of injection molding. It includes a first mold and a second mold. The first mold has an injection cavity, and the second mold has a receiving cavity on one side facing the first mold. A blocking post protrudes from the receiving cavity, and a demolding cavity is formed at the end of the blocking post facing the injection cavity. A demolding assembly is installed in the demolding cavity. The demolding assembly includes a limiting rod and a sliding rod. A pushing block for assisting in sealing the demolding cavity is fixed to the outer side of the sliding rod. An air vent is inclined on the outer side of the pushing block. A tension spring for assisting in tightening the pushing block is installed in the demolding cavity. An air guide cavity is formed inside the blocking post, and the air guide cavity communicates with the interior of the demolding cavity. The beneficial effect of this application is that it provides a plastic bucket mold for easy demolding, which can minimize the situation where the plastic bucket sticks to the inner wall of the mold and is difficult to demold, ensuring smooth subsequent work.

[0004] In practical use, the existing technology described above involves injecting air into the air duct, which then drives multiple push blocks to demold the formed plastic bucket. However, since tension springs are installed on one side of each push block, some of the push blocks tend to remain stationary. Therefore, a plastic bucket mold that facilitates demolding is needed.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a plastic bucket mold that is easy to demold.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0008] A plastic bucket mold that is easy to demold includes a frame, a first mold and a second mold that slide together inside the frame, and an auxiliary component is provided inside the first mold;

[0009] The auxiliary components include an injection cavity installed on one side of the second mold, a blocking post installed on one side of the first mold, a top plate that slides on the end of the blocking post, a rotating rod that rotates inside the blocking post, a first toothed plate installed on one side of the top plate, and a second toothed plate installed on one side of the inner wall of the frame. The second toothed plate cooperates with the first toothed plate and the rotating rod, and the injection cavity cooperates with the blocking post.

[0010] Optionally, a first sliding groove is provided on one side of the first mold, and a placement groove is provided inside the blocking column. The first sliding groove is connected to the placement groove, and the second toothed plate is slidably engaged inside the first sliding groove and the placement groove. A first through groove is provided on one side of the inner wall of the placement groove, and the first toothed plate is slidably engaged inside the first through groove. A rotating rod is rotatably engaged inside the placement groove, and a gear is mounted on the rotating rod. The gear is located between and meshes with the first toothed plate and the second toothed plate. A reset member is installed between one side of the first toothed plate and one side of the inner wall of the placement groove.

[0011] Optionally, two second through slots are opened on one side of the inner wall of the frame, and fixed plates are installed on the opposite sides of the first mold and the second mold; threaded rods are rotatably fitted inside the second through slots, and threaded grooves are opened on one side of the fixed plates, with the threaded rods threadedly fitted inside the threaded grooves; a motor is installed on one side of the frame, and one end of one of the threaded rods is installed on the output end of the motor; a synchronous pulley is installed on the other end of the threaded rod, and a synchronous belt is sleeved between the two synchronous pulleys.

[0012] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art. Of course, any product implementing this utility model does not necessarily need to achieve all of the following advantages at the same time:

[0013] When it is necessary to demold the plastic bucket mold, the second mold and the first mold move outwards, and the blocking post gradually moves away from the inside of the injection cavity. At the same time, as the first mold slides outwards, the second toothed plate slides towards the second mold, causing it to drive the rotating rod to rotate. The rotation of the rotating rod then drives the first toothed plate to slide, causing it to move the top plate towards the second mold, so that the top plate moves away from the blocking post. This facilitates the quick demolding of the formed plastic bucket. By reversing the above operations, the plastic can be processed again, thereby achieving and improving processing efficiency.

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0015] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0016] Figure 1This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0018] Figure 3 This is a top view of an embodiment of the present utility model.

[0019] Figure 4 This is a schematic diagram of the auxiliary component structure according to an embodiment of the present utility model;

[0020] The attached diagram lists the components represented by each number as follows:

[0021] Frame 1, first mold 2, second mold 3, injection cavity 4, blocking post 5, second through groove 6, fixing plate 7, threaded groove 8, placement groove 9, threaded rod 10, motor 11, synchronous pulley 12, synchronous belt 13, first through groove 14, first slide groove 15, second toothed plate 16, top plate 17, first toothed plate 18, rotating rod 19, gear 20, reset component 21.

[0022] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] Please see Figure 1-4 As shown, this embodiment provides a plastic bucket mold that is easy to demold, including a frame 1, a first mold 2 and a second mold 3 that are slidably fitted inside the frame 1, and an auxiliary component is provided inside the first mold 2;

[0025] The auxiliary components include an injection cavity 4 installed on one side of the second mold 3, a blocking post 5 installed on one side of the first mold 2, a top plate 17 slidably fitted at the end of the blocking post 5, a rotating rod 19 rotatably fitted inside the blocking post 5, a first toothed plate 18 installed on one side of the top plate 17, and a second toothed plate 16 installed on one side of the inner wall of the frame 1. The second toothed plate 16 cooperates with the first toothed plate 18 and the rotating rod 19, and the injection cavity 4 cooperates with the blocking post 5.

[0026] One application of this embodiment is as follows: After the plastic bucket is formed, a demolding operation is required. Since the second toothed plate 16 is fixed to one side of the inner wall of the frame 1, the first mold 2 and the second mold 3 are slidably separated relative to each other within the frame 1 by external force. During the movement of the first mold 2, the blocking post 5 moves with the first mold 2, and at the same time, the rotating rod 19 rotates inside the blocking post 5. Because the second toothed plate 16 cooperates with the rotating rod 19, the rotation of the rotating rod 19 will drive the first toothed plate 18 to move. The first toothed plate 18 is installed on one side of the top plate 17, so the movement of the first toothed plate 18 will push the top plate 17 to slide at the end of the blocking post 5. The sliding of the top plate 17 will generate a thrust on the formed plastic bucket, pushing the plastic bucket out of the injection cavity 4, thereby facilitating the quick demolding of the formed plastic bucket. By reversing the above operations, the plastic can be processed again, thereby realizing and improving processing efficiency.

[0027] In this embodiment, a first sliding groove 15 is provided on one side of the first mold 2, and a placement groove 9 is provided inside the blocking post 5. The first sliding groove 15 is connected to the placement groove 9. The second toothed plate 16 is slidably engaged inside the first sliding groove 15 and the placement groove 9. A first through groove 14 is provided on one side of the inner wall of the placement groove 9, and the first toothed plate 18 is slidably engaged inside the first through groove 14. A rotating rod 19 is rotatably engaged inside the placement groove 9. A gear 20 is mounted on the rotating rod 19. The gear 20 is located between and meshes with the first toothed plate 18 and the second toothed plate 16. A reset member 21 is installed between one side of the first toothed plate 18 and one side of the inner wall of the placement groove 9.

[0028] The first mold 2 and the second mold 3 slide outward within the frame 1, gradually separating them. During the movement of the first mold 2, the blocking post 5 moves along with it. Since the second toothed plate 16 is fixed to one side of the inner wall of the frame 1, it slides relative to the first mold 2, causing it to slide within the first slide groove 15 and the placement groove 9. As the second toothed plate 16 slides, the gear 20 meshing with it begins to rotate within the placement groove 9. Because the gear 20 also meshes with the first toothed plate 18, the rotation of the gear 20 drives the first toothed plate 18 to slide within the first through groove 14. The toothed plate 18 is installed on one side of the top plate 17. The sliding of the first toothed plate 18 will push the top plate 17 to slide at the end of the blocking post 5. When the top plate 17 slides, it applies a pushing force to the molded plastic bucket, thereby pushing the plastic bucket out of the injection cavity 4, thus achieving demolding. During the demolding process, the reset member 21 will extend and retract. When the demolding operation is completed and the mold is closed again, the first mold 2 and the second mold 3 approach each other, the second toothed plate 16 slides in the opposite direction, the gear 20 rotates in the opposite direction, the reset member 21 gradually retracts, pushing the first toothed plate 18 to slide in the opposite direction, so that the top plate 17 returns to the initial position, preparing for the next injection and demolding.

[0029] In this embodiment, two second through slots 6 are opened on one side of the inner wall of the frame 1. Fixing plates 7 are installed on the opposite sides of the first mold 2 and the second mold 3. Threaded rods 10 are rotatably fitted inside the second through slots 6. Threaded grooves 8 are opened on one side of the fixing plates 7, and the threaded rods 10 are threadedly fitted inside the threaded grooves 8. A motor 11 is installed on one side of the frame 1, and one end of one of the threaded rods 10 is installed on the output end of the motor 11. Synchronous pulleys 12 are installed on the other end of the threaded rods 10, and a synchronous belt 13 is sleeved between the two synchronous pulleys 12.

[0030] By starting the motor 11, its output end drives the connected threaded rod 10 to rotate. Since the other end of the threaded rod 10 is equipped with a synchronous pulley 12, and a synchronous belt 13 is sleeved between the two synchronous pulleys 12, the rotation of the threaded rod 10 will drive the other threaded rod 10 to rotate synchronously through the synchronous pulley 12 and the synchronous belt 13. The two threaded rods 10 are respectively threaded into the threaded grooves 8 of the fixing plates 7 on the first mold 2 and the second mold 3. As the threaded rod 10 rotates, according to the principle of thread transmission, the first mold 2 and the second mold 3 will move in opposite directions along the axial direction of the threaded rod 10 on the inner wall of the frame 1, gradually approaching each other. When the first mold 2 and the second mold 3 approach each other to a suitable position, the injection cavity 4 and the blocking post 5 complete the engagement, forming a complete mold cavity for molding the plastic bucket, preparing for the subsequent injection molding process. By reversing the above operations, the molded mold can be demolded.

[0031] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A plastic pail mold facilitating demolding, characterized by, include: The frame (1) has a first mold (2) and a second mold (3) slidingly fitted inside the frame (1), and the first mold (2) has an auxiliary component inside; The auxiliary components include an injection cavity (4) installed on one side of the second mold (3), a blocking post (5) installed on one side of the first mold (2), a top plate (17) slidably fitted at the end of the blocking post (5), a rotating rod (19) rotatably fitted inside the blocking post (5), a first toothed plate (18) installed on one side of the top plate (17), and a second toothed plate (16) installed on one side of the inner wall of the frame (1). The second toothed plate (16) cooperates with the first toothed plate (18) and the rotating rod (19), and the injection cavity (4) cooperates with the blocking post (5).

2. A plastic bucket mold facilitating demolding according to claim 1, wherein The first mold (2) has a first groove (15) on one side, and a placement groove (9) is provided inside the blocking post (5). The first groove (15) is connected to the placement groove (9), and the second toothed plate (16) slides inside the first groove (15) and the placement groove (9).

3. A plastic tub mould facilitating demoulding according to claim 2, characterised in that A first through groove (14) is provided on one side of the inner wall of the placement groove (9), and the first toothed plate (18) slides inside the first through groove (14).

4. A plastic bucket mold for easy demolding according to claim 3, characterized in that, The rotating rod (19) is rotatably engaged inside the placement groove (9). A gear (20) is mounted on the rotating rod (19). The gear (20) is located between and meshes with the first tooth plate (18) and the second tooth plate (16). A reset member (21) is installed between one side of the first tooth plate (18) and one side of the inner wall of the placement groove (9).

5. The plastic pail mold facilitating demolding according to claim 1, wherein, Two second through slots (6) are opened on one side of the inner wall of the frame (1), and fixing plates (7) are installed on the opposite sides of the first mold (2) and the second mold (3).

6. A plastic bucket mold facilitating demolding according to claim 5, wherein The second through groove (6) is rotatably fitted with a threaded rod (10), and a threaded groove (8) is opened on one side of the fixing plate (7), with the threaded rod (10) threadedly fitted inside the threaded groove (8).

7. A plastic tub mould facilitating demoulding according to claim 6, characterised in that A motor (11) is mounted on one side of the frame (1), and one end of a threaded rod (10) is mounted on the output end of the motor (11).

8. A plastic bucket mold facilitating demolding according to claim 7, wherein The other end of the threaded rod (10) is equipped with a synchronous pulley (12), and a synchronous belt (13) is sleeved between the two synchronous pulleys (12).

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