Plastic mold convenient to demold

Abstract

The utility model belongs to the technical field of plastic molds, and particularly relates to a plastic mold convenient to demold, which comprises an operation table, a supporting table is fixedly connected to the outer wall of the operation table, a hydraulic cylinder is fixedly connected to the outer wall of the supporting table, and the output end of the hydraulic cylinder penetrates through the supporting table and is in sliding connection with the supporting table. The output end of the hydraulic cylinder is fixedly connected with an upper mold, a lower mold is arranged under the upper mold, and a demolding mechanism is arranged on the operation table. According to the plastic mold convenient to demold, after a plastic part is cooled and formed, an electric push rod is started, a lower mold starts to move under the action of the electric push rod, first-step demolding treatment is achieved, meanwhile, the lower mold drives a connecting rod, a sliding rod and a moving block to move in the moving process, and after the moving block makes contact with the outer wall of the plastic part, demolding is completed; and through cooperation of the sliding plate, the inclined groove and the protruding block, the clamping rod clamps the plastic part, the hydraulic cylinder is started again to enable the upper mold to be separated from the plastic part, all demolding treatment is completed, and the demolding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic molds, and particularly relates to a plastic mold convenient for demolding. Background Technique

[0002] Plastic thermoforming technology is a plastic processing method in which a thermoplastic sheet is heated to a softened state, and then under the action of an external force, it is made to closely adhere to the surface of the mold to obtain a shape similar to the surface of the mold, and the required product is obtained after cooling and shaping.

[0003] At present, some existing devices lack an automatic demolding mechanism and cannot achieve automatic demolding. This requires operators to constantly pay attention to the cooling and forming of plastic parts and perform demolding operations at the appropriate time, increasing the labor intensity. In view of this, we propose a plastic mold convenient for demolding. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a plastic mold convenient for demolding, which can solve the problems raised in the above background technique.

[0005] To achieve the above purpose, a plastic mold convenient for demolding proposed by the utility model includes an operating table, the outer wall of the operating table is fixedly connected with a support table, the outer wall of the support table is fixedly connected with a hydraulic cylinder, the output end of the hydraulic cylinder penetrates through the support table and is slidably connected with the support table, the output end of the hydraulic cylinder is fixedly connected with an upper mold, a lower mold is arranged directly below the upper mold, and a demolding mechanism is arranged on the operating table. The demolding mechanism includes:

[0006] An electric push rod, the outer wall of the electric push rod is fixedly connected with a base, the base is fixedly connected with the outer wall of the support table, the output end of the electric push rod is fixedly connected with the outer wall of the lower mold. There are two groups of lower molds in total. By the opposite movement of the two groups of lower molds, the preliminary demolding treatment of the mold can be realized;

[0007] A guide rod, one end of the guide rod is fixedly connected with the outer wall of the lower mold, and the other end of the guide rod penetrates through the base and is slidably connected with the base;

[0008] A slider, the slider is fixedly connected with the outer wall of the lower mold, the slider penetrates through a connecting rod and is rotatably connected with the connecting rod, and the end of the connecting rod far away from the slider is penetrated by a sliding rod and is slidably connected with the sliding rod;

[0009] A moving block, the moving block is rotatably connected with the sliding rod, a clamping rod is slidably connected to the inner wall of the moving block, a chute is formed in the moving block, a convex block is fixedly connected to the outer wall of the clamping rod, and the convex block is slidably connected with the chute.

[0010] Preferably, a sliding plate is provided on the outer wall of the moving block. A rod body is fixedly connected to the outer wall of the sliding plate. The rod body penetrates through the moving block and is slidably connected to the moving block. The sliding plate is elastically connected to the outer wall of the moving block through a first spring.

[0011] Preferably, the sliding plate is provided with an inclined groove, which is slidably connected to the convex block. The sliding plate is provided with a clamping groove.

[0012] Preferably, a clamping block is slidably connected to the moving block. A second spring is fixedly connected to the outer wall of the clamping block. One end of the second spring away from the clamping block is fixedly connected to the inner wall of the moving block.

[0013] Preferably, a through groove is provided on the operating table, and the through groove is slidably connected to the slider.

[0014] Preferably, a round block and an L-shaped rod are fixedly connected to the outer wall of the operating table. A sliding groove is provided in the L-shaped rod, and the sliding groove is slidably connected to the sliding rod to improve the movement stability of the sliding rod.

[0015] The utility model provides a plastic mold which is convenient for demolding. It has the following beneficial effects:

[0016] (1). For the plastic mold which is convenient for demolding, after the plastic part is cooled and formed, the electric push rod is started. The lower mold starts to move under the action of the electric push rod to realize the first step of demolding treatment. At the same time, during the movement of the lower mold, the connecting rod, the sliding rod and the moving block are driven to move. When the moving block contacts the outer wall of the plastic part, the clamping rod clamps the plastic part through the cooperation of the sliding plate, the inclined groove and the convex block. Then the hydraulic cylinder is started again to separate the upper mold from the plastic part, completing all the demolding treatments, eliminating the need for manual demolding and improving the demolding efficiency.

[0017] (2). For the plastic mold which is convenient for demolding, by clamping the clamping block into the clamping groove, the device can stably clamp the plastic part. By rotating the moving block, the clamping rod can clamp the plastic part and separate from the round block to realize material taking. Then, by pulling the clamping block, the clamping of the plastic part can be released to complete blanking. The operation is simple and convenient, improving the convenience of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0019] Figure 1 It is a schematic three-dimensional structure diagram of the whole of the present invention;

[0020] Figure 2 Partial three-dimensional structure schematic diagram of the present utility model Figure 1 ;

[0021] Figure 3 Partial three-dimensional structure schematic diagram of the present utility model Figure 2 ;

[0022] Figure 4 Partial three-dimensional structure schematic diagram of the present utility model Figure 3 ;

[0023] Figure 5 Three-dimensional structure schematic diagram of the moving block of the present utility model;

[0024] Figure 6 Three-dimensional cross-sectional structure schematic diagram of the moving block of the present utility model.

[0025] Explanation of the reference numerals in the drawings:

[0026] 1. Operating table; 11. Through groove; 12. L-shaped rod; 13. Round block; 14. Sliding groove; 2. Support table; 3. Hydraulic cylinder; 4. Upper mold; 5. Lower mold; 61. Electric push rod; 62. Base; 63. Guide rod; 64. Slide block; 65. Connecting rod; 66. Slide rod; 67. Moving block; 671. Chute; 672. Convex block; 673. Clamping rod; 674. Sliding plate; 675. Inclined groove; 676. First spring; 677. Rod body; 678. Block; 679. Second spring.

[0027] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Please refer to Figures 1 - 6, the present utility model provides a plastic mold facilitating demolding, which includes an operating table 1. A through groove 11 is formed in the operating table 1, and the through groove 11 is slidably connected to a slider 64. A round block 13 and an L-shaped rod 12 are fixedly connected to the outer wall of the operating table 1. A sliding groove 14 is formed in the L-shaped rod 12, and the sliding groove 14 is slidably connected to a sliding rod 66. A support table 2 is fixedly connected to the outer wall of the operating table 1. A hydraulic cylinder 3 is fixedly connected to the outer wall of the support table 2. The output end of the hydraulic cylinder 3 penetrates through the support table 2 and is slidably connected to the support table 2. The output end of the hydraulic cylinder 3 is fixedly connected to an upper mold 4. A lower mold 5 is arranged directly below the upper mold 4. A demolding mechanism is arranged on the operating table 1.

[0030] In an embodiment of the present utility model, in order to facilitate the demolding of plastic parts, specifically, the demolding mechanism includes an electric push rod 61. A base 62 is fixedly connected to the outer wall of the electric push rod 61. The base 62 is fixedly connected to the outer wall of the support table 2. The output end of the electric push rod 61 is fixedly connected to the outer wall of the lower mold 5. One end of a guide rod 63 is fixedly connected to the outer wall of the lower mold 5. The other end of the guide rod 63 penetrates through the base 62 and is slidably connected to the base 62;

[0031] A slider 64, the slider 64 is fixedly connected to the outer wall of the lower mold 5. The slider 64 penetrates through a connecting rod 65 and is rotatably connected to the connecting rod 65. The end of the connecting rod 65 far from the slider 64 is penetrated by the sliding rod 66 and is slidably connected to the sliding rod 66. A moving block 67 is rotatably connected to the sliding rod 66. A clamping rod 673 is slidably connected to the inner wall of the moving block 67. A chute 671 is formed in the moving block 67. A convex block 672 is fixedly connected to the outer wall of the clamping rod 673. The convex block 672 is slidably connected to the chute 671;

[0032] Furthermore, a sliding plate 674 is arranged on the outer wall of the moving block 67. A rod body 677 is fixedly connected to the outer wall of the sliding plate 674. The rod body 677 penetrates through the moving block 67 and is slidably connected to the moving block 67. The sliding plate 674 is elastically connected to the outer wall of the moving block 67 through a first spring 676;

[0033] Furthermore, an inclined groove 675 is formed in the sliding plate 674. The inclined groove 675 is slidably connected to the convex block 672. A clamping groove is formed in the sliding plate 674. A clamping block 678 is slidably connected to the moving block 67. A second spring 679 is fixedly connected to the outer wall of the clamping block 678. The end of the second spring 679 far from the clamping block 678 is fixedly connected to the inner wall of the moving block 67;

[0034] In the present utility model, during use, first, plastic is introduced into the lower mold 5. Subsequently, the hydraulic cylinder 3 is started. At this time, the upper mold 4 will be inserted into the lower mold 5 under the drive of the hydraulic cylinder 3. Subsequently, hot forming treatment is performed on the plastic particles. This is the prior art, so it will not be described in the specification. After the plastic part is cooled and formed, at this time, the electric push rod 61 is started. When the electric push rod 61 is started, at this time, the lower mold 5 starts to move towards the electric push rod 61, thereby realizing the first-step demolding treatment;

[0035] Meanwhile, during the movement of the lower mold 5, the connecting rod 65 will exert a force on the slide bar 66, causing the slide bar 66 to drive the moving block 67 to move. It should be noted that when the lower mold 5 is completely separated from the plastic part, at this time, the clamping rod 673 and the outer wall of the lower mold 5 are in the same plane. When the moving block 67 moves a further distance, at this time, the sliding plate 674 begins to contact the outer wall of the plastic part, and then the plastic part will extrude the outer wall of the sliding plate 674, causing the sliding plate 674 to slide, and at the same time, the first spring 676 undergoes elastic deformation. When the sliding plate 674 moves, at this time, the inclined groove 675 will exert a force on the convex block 672, causing the clamping rod 673 to slide inside the sliding groove 671, thereby realizing the clamping of the plastic part. Subsequently, the hydraulic cylinder 3 is started again, causing the upper mold 4 to move upward. Through the clamping of the clamping rod 673, the upper mold 4 can be separated from the plastic part, thereby completing the entire demolding process;

[0036] Meanwhile, during this process of the sliding plate 674, the sliding plate 674 will contact the block 678 and simultaneously exert a pressure on the block 678, causing the block 678 to move upward. It should be noted that when the clamping rod 673 completely clamps the plastic part, at this time, the teeth on the block 678 coincide with the slots on the sliding plate 674. Subsequently, under the elastic force of the second spring 679, the block 678 will move downward, causing the teeth to snap into the inside of the slots, thereby limiting the clamping rod 673. Subsequently, the moving block 67 is rotated by 90 degrees. At this time, the clamping rod 673 will clamp the plastic part and separate from the round block 13, thereby achieving the purpose of material taking. Subsequently, the block 678 is pulled again, causing the teeth to disengage from the slots. At this time, the sliding plate 674 will drive the clamping rod 673 back to its original position under the elastic force of the first spring 676, thereby releasing the clamping of the plastic part and completing the purpose of discharging materials.

[0037] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A plastic mold facilitating demolding, comprising an operating table (1), characterized in that: A support table (2) is fixedly connected to the outer wall of the operation table (1). A hydraulic cylinder (3) is fixedly connected to the outer wall of the support table (2). The output end of the hydraulic cylinder (3) penetrates through the support table (2) and is slidably connected to the support table (2). The output end of the hydraulic cylinder (3) is fixedly connected to an upper mold (4). A lower mold (5) is provided directly below the upper mold (4). A demolding mechanism is provided on the operation table (1). The demolding mechanism includes: An electric push rod (61). A base (62) is fixedly connected to the outer wall of the electric push rod (61). The base (62) is fixedly connected to the outer wall of the support table (2). The output end of the electric push rod (61) is fixedly connected to the outer wall of the lower mold (5); A guide rod (63). One end of the guide rod (63) is fixedly connected to the outer wall of the lower mold (5). The other end of the guide rod (63) penetrates through the base (62) and is slidably connected to the base (62); A slider (64). The slider (64) is fixedly connected to the outer wall of the lower mold (5). The slider (64) penetrates through a connecting rod (65) and is rotatably connected to the connecting rod (65). The end of the connecting rod (65) far from the slider (64) is penetrated by a sliding rod (66) and is slidably connected to the sliding rod (66); A moving block (67). The moving block (67) is rotatably connected to the sliding rod (66). A clamping rod (673) is slidably connected to the inner wall of the moving block (67). A chute (671) is provided in the moving block (67). A convex block (672) is fixedly connected to the outer wall of the clamping rod (673). The convex block (672) is slidably connected to the chute (671).

2. The plastic mold convenient for demolding according to claim 1 is characterized in that: A sliding plate (674) is provided on the outer wall of the moving block (67). A rod body (677) is fixedly connected to the outer wall of the sliding plate (674). The rod body (677) penetrates through the moving block (67) and is slidably connected to the moving block (67). The sliding plate (674) is elastically connected to the outer wall of the moving block (67) by a first spring (676).

3. The plastic mold for facilitating demolding according to claim 2, wherein: The sliding plate (674) is provided with an inclined groove (675). The inclined groove (675) is slidably connected to the convex block (672). The sliding plate (674) is provided with a card slot.

4. A plastic mold facilitating demolding according to claim 1, characterized in that: A clamping block (678) is slidably connected to the moving block (67). A second spring (679) is fixedly connected to the outer wall of the clamping block (678). The end of the second spring (679) far from the clamping block (678) is fixedly connected to the inner wall of the moving block (67).

5. The plastic mold facilitating demolding according to claim 1, characterized in that: A through groove (11) is provided in the operation table (1). The through groove (11) is slidably connected to the slider (64).

6. The plastic mold convenient for demolding according to claim 1, wherein: A round block (13) and an L-shaped rod (12) are fixedly connected to the outer wall of the operation table (1). A sliding groove (14) is provided in the L-shaped rod (12). The sliding groove (14) is slidably connected to the sliding rod (66).

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