Forming mold for plastic product with side recess

Abstract

The utility model relates to the technical field of molds, and discloses a plastic product forming mold with side recesses, which comprises a bottom plate, a fixed mold is fixedly arranged on the upper surface of the bottom plate, fixed columns are fixedly arranged at four corners of the bottom plate, a plurality of fixed columns are fixedly connected with a top plate together, cavities are arranged at two ends of the fixed mold, and the top plate is fixedly connected with the fixed mold. U-shaped grooves are formed in the bottoms in the two cavities, U-shaped blocks are arranged on the inner walls of the two U-shaped grooves, sliding blocks are fixedly arranged on the inner walls of the two cavities, two inclined blocks are fixedly arranged at the positions, close to the lower ends, of one side walls of the two sliding blocks, and guide columns are movably arranged on the inner walls of the inclined blocks. The forming mold for the plastic product with the side concave part has the effect of facilitating rapid demolding, and also has the effect of facilitating installation and replacement of the convex block when the mold is used, so that plastic products with different side concave shapes can be conveniently produced.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a plastic product forming mold with an undercut. Background Art

[0002] Plastics, synthetic rubber and synthetic fibers are three indispensable synthetic materials in our daily life. Plastic products made of plastic as the main raw material are widely used in daily necessities and industrial products. In order to better make plastic into finished products, corresponding molds are needed.

[0003] At present, when most plastic product molding molds are used, the molded products are easy to stick to the inside of the mold, which makes demoulding difficult and the finished products difficult to take out, thereby seriously reducing the production efficiency of the plastic finished products. At the same time, it is difficult to replace the protrusions in traditional molds, which makes it inconvenient to produce undercut plastic products with different undercut shapes. Therefore, those skilled in the art provide a plastic product molding mold with undercuts to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a plastic product molding mold with an undercut, which has the effect of facilitating rapid demoulding, and the mold also has the function of facilitating the installation and replacement of protrusions when in use, thereby facilitating the production of plastic products with different undercut shapes.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A plastic product forming mold with an undercut comprises a bottom plate, a fixed mold is fixedly arranged on the upper surface of the bottom plate and fixed columns are fixedly arranged at the four corners, a plurality of the fixed columns are fixedly connected to a top plate, chambers are arranged at both ends of the fixed mold, U-shaped grooves are arranged at the bottoms of the two chambers, U-shaped blocks are arranged on the inner walls of the two U-shaped grooves, sliding blocks are fixedly arranged on the inner walls of the two chambers, two oblique blocks are fixedly arranged on one side wall of the two sliding blocks near the lower end, guide columns are movably arranged on the inner walls of the plurality of oblique blocks, and the plurality of guide columns are adjacently arranged in groups of two and fixedly connected to the U-shaped blocks.

[0007] Through the above technical solution, the oblique block, the guide column, the U-shaped block and the U-shaped groove cooperate with each other, so that the produced plastic products can be easily extruded, thereby achieving the effect of easy demoulding.

[0008] Furthermore, one side wall of the two chambers is provided with a slide groove, the inner walls of the two slide grooves are slidably provided with threaded sleeves, the inner walls of the two threaded sleeves are threadedly connected with rotating columns, and one end of the two rotating columns is fixedly connected with a connector;

[0009] Through the above technical solution, the protrusion can be easily fixed by the mutual cooperation between the threaded sleeve, the rotating column and the connecting head.

[0010] Furthermore, through grooves are provided on both sides of the inner wall of the fixed mold, and protrusions are provided on the inner walls of the two through grooves, and the two protrusions are snap-fitted with the sliding block;

[0011] Through the above technical solution, the protrusion can be easily limited by using the sliding block.

[0012] Furthermore, one end of each of the two protrusions is fixedly provided with a threaded ring, and the two threaded rings are respectively connected to corresponding connectors;

[0013] Through the above technical solution, the connector can be threadedly connected to the threaded ring by rotating the connector, thereby achieving the function of fixing the protrusion.

[0014] Furthermore, electric telescopic rods are fixedly provided at both ends of the fixed mold, and the output ends of the two electric telescopic rods are respectively fixed between corresponding sliding blocks;

[0015] Through the above technical solution, the movement of the sliding block can be controlled by using the electric telescopic rod.

[0016] Furthermore, a cylinder is fixedly arranged on the upper surface of the top plate, and the output end of the cylinder is fixedly connected to a movable mold;

[0017] Through the above technical solution, the movement of the movable mold can be controlled by using the cylinder.

[0018] Furthermore, springs are sleeved on the outer walls of the two connectors between the threaded sleeve and the sliding block;

[0019] Through the above technical solution, the spring can play a role of assisting the return.

[0020] The utility model has the following beneficial effects:

[0021] 1. Compared with the existing plastic product molding mold, the plastic product molding mold with undercut proposed by the utility model can eject the molded plastic product through the movement of the sliding block under the cooperation of the oblique block, the guide column and the U-shaped groove when the mold is put into use, thereby realizing the effect of rapid demoulding.

[0022] 2. Compared with the existing plastic product molding mold, the plastic product molding mold with side concave proposed by the utility model, when put into use, under the cooperation of the spring, by rotating the rotating column and the connecting head, under the action of the threaded ring, the connecting head and the protrusion can be connected, thereby facilitating the installation and replacement of protrusions of different shapes, thereby improving the quality of the product and greatly improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an axonometric view of a plastic product forming mold with undercut proposed by the utility model;

[0024] Figure 2 This is a front view of a plastic product forming mold with undercuts proposed by the utility model;

[0025] Figure 3 This is a front cross-sectional view of a plastic product forming mold with undercuts proposed by the utility model;

[0026] Figure 4 This is a partial structural schematic diagram of a plastic product forming mold with undercuts proposed by the utility model;

[0027] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0028] Legend:

[0029] 1. Bottom plate; 2. Fixed mold; 3. Fixed column; 4. Top plate; 5. Through slot; 6. Electric telescopic rod; 7. Rotating column; 8. Threaded sleeve; 9. Moving mold; 10. Cylinder; 11. Threaded ring; 12. Oblique block; 13. Sliding block; 14. Bump; 15. U-shaped block; 16. U-shaped groove; 17. Guide column; 18. Spring; 19. Connector; 20. Chamber; 21. Slide slot. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1-5The utility model provides an embodiment: a plastic product forming mold with undercut, comprising a bottom plate 1, a fixed mold 2 is fixedly arranged on the upper surface of the bottom plate 1 and fixed columns 3 are fixedly arranged at the four corners, a plurality of fixed columns 3 are fixedly connected to a top plate 4, chambers 20 are arranged at both ends of the fixed mold 2, U-shaped grooves 16 are arranged at the bottoms of the two chambers 20, U-shaped blocks 15 are arranged on the inner walls of the two U-shaped grooves 16, sliding blocks 13 are fixedly arranged on the inner walls of the two chambers 20, two oblique blocks 12 are fixedly arranged on one side wall of the two sliding blocks 13 near the lower end, guide columns 17 are movably arranged on the inner walls of the plurality of oblique blocks 12, and the plurality of guide columns 17 are adjacent to each other in pairs and fixedly connected with the U-shaped blocks 15, and the oblique blocks 12, the guide columns 17, the U-shaped blocks 15 and the U-shaped grooves 16 cooperate with each other to facilitate the extrusion of the produced plastic products, thereby achieving the effect of facilitating demoulding.

[0032] A slide groove 21 is provided on one side wall of the two chambers 20, and a threaded sleeve 8 is slidably provided on the inner wall of the two slide grooves 21. The inner wall of the two threaded sleeves 8 is threadedly connected with a rotating column 7. One end of the two rotating columns 7 is fixedly connected with a connector 19. The threaded sleeve 8, the rotating column 7 and the connector 19 cooperate with each other to facilitate the fixing of the protrusion 14. Through grooves 5 are provided on both sides of the inner wall of the fixed mold 2. The inner walls of the two through grooves 5 are provided with protrusions 14. The two protrusions 14 are snap-fitted with the sliding block 13. The sliding block 13 is used to facilitate the positioning of the protrusion 14. One end of the two protrusions 14 is fixedly provided with a threaded ring 11, and the two threaded rings 11 are respectively connected to the corresponding connectors. 19 are connected, and by rotating the connector 19, it can be threadedly connected to the threaded ring 11, so as to achieve the function of fixing the protrusion 14, electric telescopic rods 6 are fixedly provided at both ends of the fixed mold 2, and the output ends of the two electric telescopic rods 6 are respectively fixed to the corresponding sliding blocks 13, and the movement of the sliding blocks 13 can be controlled by the electric telescopic rods 6, and a cylinder 10 is fixedly provided on the upper surface of the top plate 4, and the output end of the cylinder 10 is fixedly connected to the movable mold 9, and the movement of the movable mold 9 can be controlled by the cylinder 10, and the outer walls of the two connectors 19 are located between the threaded sleeve 8 and the sliding block 13, and springs 18 are sleeved, which can play a role in assisting the return.

[0033] Working principle: When the utility model is in use, the cylinder 10 is used to close the movable mold 9 and the fixed mold 2, and then the sliding block 13 is moved to the middle under the left and right of the electric telescopic rod 6, so that the protrusion 14 is extruded, and then the raw material is poured into the mold. After cooling, under the action of the electric telescopic rod 6, with the cooperation of the oblique block 12, the guide column 17, and the U-shaped block 15, the molded plastic product can be pushed out, thereby facilitating demoulding. When plastic products of different shapes are needed, by rotating the rotating column 7, with the cooperation of the connecting head 19, the protrusion 14 can be disassembled, thereby facilitating the replacement of protrusions 14 of different shapes.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plastic product forming mold with an undercut, comprising a bottom plate (1), characterized in that: A fixed mold (2) is fixedly arranged on the upper surface of the bottom plate (1) and fixed columns (3) are fixedly arranged at the four corners; a plurality of the fixed columns (3) are fixedly connected to the top plate (4); chambers (20) are arranged at both ends of the fixed mold (2); the bottoms of the two chambers (20) are provided with U-shaped grooves (16); the inner walls of the two U-shaped grooves (16) are provided with U-shaped blocks (15); the inner walls of the two chambers (20) are fixedly arranged with sliding blocks (13); one side wall of the two sliding blocks (13) is fixedly arranged with two oblique blocks (12) at the lower end; the inner walls of the plurality of oblique blocks (12) are movably provided with guide columns (17); the plurality of guide columns (17) are arranged in pairs and fixedly connected to the U-shaped blocks (15).

2. A plastic product forming mold with undercut according to claim 1, characterized in that: A slide groove (21) is provided on one side wall of the two chambers (20), a threaded sleeve (8) is slidably provided on the inner wall of the two slide grooves (21), a rotating column (7) is threadedly connected to the inner wall of the two threaded sleeves (8), and a connector (19) is fixedly connected to one end of the two rotating columns (7).

3. A plastic product forming mold with undercut according to claim 1, characterized in that: Through grooves (5) are provided on both sides of the inner wall of the fixed mold (2), and protrusions (14) are provided on the inner walls of the two through grooves (5). The two protrusions (14) are snap-fitted with the sliding block (13).

4. A plastic product forming mold with undercut according to claim 3, characterized in that: A threaded ring (11) is fixedly provided at one end of each of the two protrusions (14), and the two threaded rings (11) are respectively connected to corresponding connectors (19).

5. The plastic product forming mold with undercut according to claim 1, characterized in that: Electric telescopic rods (6) are fixedly arranged at both ends of the fixed mold (2), and the output ends of the two electric telescopic rods (6) are respectively fixed between corresponding sliding blocks (13).

6. A plastic product forming mold with undercut according to claim 1, characterized in that: A cylinder (10) is fixedly arranged on the upper surface of the top plate (4), and the output end of the cylinder (10) is fixedly connected to a movable mold (9).

7. A plastic product forming mold with undercut according to claim 2, characterized in that: The outer walls of the two connecting heads (19) are located between the threaded sleeve (8) and the sliding block (13) and are both sleeved with a spring (18).

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