Automatic demolding equipment for comb injection molding

Abstract

The utility model discloses a kind of comb injection moulding automatic demoulding equipment, it includes: support frame, the top of the support frame is connected with hydraulic cylinder, the piston rod bottom of the hydraulic cylinder is connected with movable plate, the bottom of the movable plate is connected with top die, the surface of the top die is connected with movable push rod, the bottom of the support frame is connected with base, the top of the base is connected with bottom die, the inner wall of the base is provided with sliding slot.The utility model is convenient when opening mould, the formed comb is automatically ejected, to improve the convenience of demoulding, solve the problem that time and effort are wasted due to complicated demoulding operation, it is also beneficial to knock the surface of bottom die while ejecting, so that the formed comb is loose, avoid the situation that sticking occurs when demoulding, in turn improve the thoroughness of demoulding, solve the problem that the formed comb is damaged due to incomplete demoulding, in turn affect the molding quality.

Description

Technical Field

[0001] This utility model relates to the field of comb technology, and in particular to an automatic demolding device for comb injection molding. Background Technology

[0002] Combs are tools whose core function is to comb hair. With the continuous development of technology, there are more and more types of combs and more and more processing techniques for them, including injection molding. Automatic demolding equipment is needed when injection molding combs.

[0003] Existing automatic demolding equipment is inconvenient to loosen the molded combs during the demolding process, which makes the combs prone to sticking together during demolding, resulting in incomplete demolding and easy damage. To address this issue, an automatic demolding device for comb injection molding is proposed. Utility Model Content

[0004] Therefore, it is necessary to provide an automatic demolding device for comb injection molding to address the aforementioned technical problems.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An automatic demolding device for comb injection molding includes: a support frame, a hydraulic cylinder connected to the top of the support frame, a movable plate connected to the bottom of the piston rod of the hydraulic cylinder, a top mold connected to the bottom of the movable plate, a movable push rod connected to the surface of the top mold, a base connected to the bottom of the support frame, a bottom mold connected to the top of the base, a groove formed in the inner wall of the base, a return spring connected to the bottom wall of the groove, a movable frame connected to the top of the return spring, a push rod connected to the top of the movable frame, and a sealing block connected to the top of the push rod.

[0008] The inner wall of the movable frame is connected to a support shaft, the surface of the support shaft is connected to a movable block, one end of the support shaft is connected to a cylindrical gear, and the bottom of the support frame is connected to fixed racks on both sides near the base.

[0009] In a preferred embodiment of the automatic demolding equipment for comb injection molding provided by this utility model, the bottom of the movable frame is distributed in an "I" shape, and the shape of the slide groove is consistent with the bottom shape of the movable frame. The movable frame and the slide groove form a telescopic structure through a return spring.

[0010] In a preferred embodiment of the automatic demolding equipment for comb injection molding provided by this utility model, the top of the movable frame is provided with four protruding rods, the number of movable push rods is the same as the number of protruding rods, and the positions of the movable push rods and the protruding rods are matched.

[0011] In a preferred embodiment of the automatic demolding equipment for comb injection molding provided by this utility model, the push rods are evenly distributed on the movable frame, and the top of the push rods extends into the interior of the bottom mold.

[0012] In a preferred embodiment of the automatic demolding equipment for comb injection molding provided by this utility model, the movable block is rotatably connected to the movable frame via a support shaft, and the movable block is distributed in a teardrop shape.

[0013] In a preferred embodiment of the automatic demolding equipment for comb injection molding provided by this utility model, the longer end of the movable block abuts against the surface of the bottom mold, and the shorter end of the movable block is provided with a distance from the surface of the bottom mold.

[0014] In a preferred embodiment of the automatic demolding equipment for comb injection molding provided by this utility model, the cylindrical gear cooperates with the fixed rack, and the cylindrical gear and the fixed rack form a sliding structure.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention provides an automatic demolding device for injection molding of combs. By setting up a support frame, hydraulic cylinder, movable plate, top mold, movable push rod, base, bottom mold, slide, return spring, movable frame, push rod and sealing block, it facilitates the automatic ejection of the molded comb when the mold is opened, thereby improving the convenience of demolding and solving the problem of time-consuming and labor-intensive demolding operation.

[0017] 2. The automatic demolding equipment for injection molding of combs provided by this utility model, through the setting of support shaft, movable block, cylindrical gear and fixed rack, is conducive to knocking the surface of the bottom mold while ejecting, thereby loosening the molded comb and avoiding sticking during demolding. This improves the thoroughness of demolding and solves the problem of damage to the molded comb caused by incomplete demolding, which in turn affects the molding quality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A top-view three-dimensional structural schematic diagram of this utility model;

[0020] Figure 2 A three-dimensional structural schematic diagram of this utility model from a bottom view;

[0021] Figure 3 A schematic diagram of the base structure provided by this utility model;

[0022] Figure 4 A schematic diagram of the structure of the movable frame and the top rod provided by this utility model;

[0023] Figure 5 Provided by this utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0024] The markings in the diagram are explained as follows:

[0025] 1. Support frame; 2. Hydraulic cylinder; 3. Movable plate; 4. Top mold; 5. Movable push rod; 6. Base; 7. Bottom mold; 8. Slide groove; 9. Return spring; 10. Movable frame; 11. Push rod; 12. Sealing block; 13. Support shaft; 14. Movable block; 15. Cylindrical gear; 16. Fixed rack. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0027] Example 1

[0028] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5An automatic demolding device for comb injection molding includes a support frame 1, a hydraulic cylinder 2 connected to the top of the support frame 1, a movable plate 3 connected to the bottom of the piston rod of the hydraulic cylinder 2, a top mold 4 connected to the bottom of the movable plate 3, a movable push rod 5 connected to the surface of the top mold 4, a base 6 connected to the bottom of the support frame 1, a bottom mold 7 connected to the top of the base 6, a groove 8 formed on the inner wall of the base 6, a return spring 9 connected to the bottom wall of the groove 8, a movable frame 10 connected to the top of the return spring 9, and the bottom of the movable frame 10 being in the shape of an "I". The slide groove 8 is shaped like the bottom of the movable frame 10. The movable frame 10 and the slide groove 8 form a telescopic structure through the return spring 9. The top of the movable frame 10 is provided with four protrusions. The number of movable push rods 5 is the same as the number of protrusions. The movable push rods 5 and the protrusions are matched. This makes it convenient for the movable frame 10 to slide down through the movable push rods 5 when the top mold 4 is lowered and closes with the bottom mold 7. In the subsequent mold opening, the movable frame 10 can be reset and slid by the elasticity of the return spring 9.

[0029] Preferably, the top of the movable frame 10 is connected to a push rod 11, and the top of the push rod 11 is connected to a sealing block 12. Several push rods 11 are evenly distributed on the movable frame 10, and the top of the push rod 11 extends into the interior of the bottom mold 7, so that when the movable frame 10 is reset and slid, the push rod 11 can push out the formed comb through the sealing block 12.

[0030] Example 2

[0031] Based on Embodiment 1, a preferred embodiment of the automatic demolding device for comb injection molding provided by this utility model is available for reference. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The inner wall of the movable frame 10 is connected to a support shaft 13, and the surface of the support shaft 13 is connected to a movable block 14. The movable block 14 is rotatably connected to the movable frame 10 through the support shaft 13, and the movable block 14 is distributed in a teardrop shape. The longer end of the movable block 14 abuts against the surface of the bottom mold 7, and the shorter end of the movable block 14 is spaced apart from the surface of the bottom mold 7. This facilitates the movable block 14 to intermittently strike the surface of the bottom mold 7 when rotating, thereby loosening the comb formed inside and making demolding more thorough.

[0032] Preferably, a cylindrical gear 15 is connected to one end of the support shaft 13, and fixed racks 16 are connected to the bottom of the support frame 1 on both sides near the base 6. The cylindrical gear 15 and the fixed racks 16 cooperate and form a sliding structure, which facilitates the rotation of the cylindrical gear 15 while sliding, thereby helping to drive the movable block 14 to rotate.

[0033] The automatic demolding device for injection molding of combs provided by this utility model is used as follows: When the mold is closed, the movable push rod 5 will push the movable frame 10 down, causing the movable frame 10 to drive the return spring 9 to compress. When the mold is opened, the elasticity of the return spring 9 will drive the movable frame 10 to return and slide upward, so that the movable frame 10 will drive the sealing block 12 to return and slide upward through the push rod 11, so that the sealing block 12 will drive the molded comb to be ejected and demolded. At the same time, the movable frame 10 will drive the cylindrical gear 15 to slide through the support shaft 13, so that the cylindrical gear 15 will rotate while sliding through meshing with the fixed rack 16, thereby causing the support shaft 13 to drive the movable block 14 to rotate. At this time, through the teardrop shape of the movable block 14, the movable block 14 will intermittently knock on the surface of the bottom mold 7 when rotating, which will help loosen the comb molded inside the bottom mold 7 and effectively avoid the problem of sticking during demolding.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. An automatic demolding device for comb injection molding, characterized in that, It includes: a support frame (1), a hydraulic cylinder (2) connected to the top of the support frame (1), a movable plate (3) connected to the bottom of the piston rod of the hydraulic cylinder (2), a top mold (4) connected to the bottom of the movable plate (3), a movable push rod (5) connected to the surface of the top mold (4), a base (6) connected to the bottom of the support frame (1), a bottom mold (7) connected to the top of the base (6), a sliding groove (8) opened on the inner wall of the base (6), a return spring (9) connected to the bottom wall of the sliding groove (8), a movable frame (10) connected to the top of the return spring (9), a push rod (11) connected to the top of the movable frame (10), and a sealing block (12) connected to the top of the push rod (11). The inner wall of the movable frame (10) is connected to a support shaft (13), the surface of the support shaft (13) is connected to a movable block (14), one end of the support shaft (13) is connected to a cylindrical gear (15), and the bottom of the support frame (1) is connected to fixed racks (16) on both sides near the base (6).

2. The automatic demolding equipment for comb injection molding according to claim 1, characterized in that, The bottom of the movable frame (10) is arranged in an "I" shape, and the shape of the slide groove (8) is consistent with the bottom shape of the movable frame (10). The movable frame (10) and the slide groove (8) form a telescopic structure through the return spring (9).

3. The automatic demolding equipment for comb injection molding according to claim 1, characterized in that, The top of the movable frame (10) is provided with four protruding rods, the number of movable push rods (5) is the same as the number of protruding rods, and the movable push rods (5) are matched with the protruding rods.

4. The automatic demolding equipment for comb injection molding according to claim 1, characterized in that, The top rods (11) are evenly distributed on the movable frame (10), and the top of the top rods (11) extends into the interior of the bottom mold (7).

5. The automatic demolding equipment for comb injection molding according to claim 1, characterized in that, The movable block (14) is rotatably connected to the movable frame (10) via a support shaft (13), and the movable block (14) is distributed in a teardrop shape.

6. The automatic demolding equipment for comb injection molding according to claim 5, characterized in that, The longer end of the movable block (14) abuts against the surface of the bottom mold (7), and the shorter end of the movable block (14) is spaced apart from the surface of the bottom mold (7).

7. The automatic demolding equipment for comb injection molding according to claim 1, characterized in that, The cylindrical gear (15) engages with the fixed rack (16), and the cylindrical gear (15) and the fixed rack (16) form a sliding structure.

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