Mold convenient and rapid to demold

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to a mold convenient and quick to demold, which comprises a base, a sliding groove is formed in the base, an outer mold is connected to the sliding groove in a sliding manner, an inner mold is fixedly connected to the outer wall of the base, and a jacking device is arranged in the inner mold. According to the mold convenient and rapid to demold, when injection molding is completed, a hydraulic cylinder is started, an outer mold moves towards the hydraulic cylinder, in the process, a fixed rod fixedly connected with the outer mold can drive a moving rod to move, at the moment, the moving rod can apply acting force to a bottom block, the bottom block drives an ejector rod to move upwards, a workpiece can be ejected out of an inner mold, and the mold is convenient to demold. And when the outer mold moves towards the middle, the moving rod can return to the original position at the moment, in the process, the pressure borne by the bottom block disappears, the spring can apply acting force to the sliding block at the moment, and therefore the ejector rod can return to the original position, and next injection molding can be completed.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a mold which is convenient and quick to demould. Background Art

[0002] Injection mold is a tool for producing plastic products. It is also a tool that gives plastic products a complete structure and precise size. Injection mold is also a processing method used in mass production of parts. It is mainly used in the industrial field. The injection mold process is to inject the heated and melted material into the mold cavity by high pressure, and obtain a molded product after cooling and solidification.

[0003] However, after the workpiece is cooled and formed, part of the workpiece tends to stick to the outer wall of the mold, which makes it difficult for the staff to remove the mold, thus affecting the injection molding efficiency of the mold. In view of this, we propose a mold that is convenient and quick to demold. Utility Model Content

[0004] The main purpose of the utility model is to provide a mold that is convenient and quick to demould, which can solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a mold for convenient and quick demoulding, comprising a base, the base is provided with a sliding groove, the sliding groove is slidably connected to an outer mold, and its function is to improve the sliding stability of the outer mold, the outer wall of the base is fixedly connected to an inner mold, and a lifting device is provided inside the inner mold, and the lifting device comprises:

[0006] A push rod, the push rod passes through the inner mold and is slidably connected to the inner mold;

[0007] The slider is penetrated by the push rod and is fixedly connected to the inner wall of the slider.

[0008] Preferably, the slider is slidably connected to the inner wall of the inner mold, the outer wall of the slider is fixedly connected to a spring, and one end of the spring away from the slider is fixedly connected to the inner wall of the inner mold.

[0009] Preferably, a bottom block is provided below the sliding block, the bottom block is slidably connected to the inner wall of the inner mold, and the bottom block is fixedly connected to the bottom end of the ejector rod.

[0010] Preferably, a moving rod is provided under the bottom block, the moving rod is slidably connected to the inner wall of the inner mold, the outer wall of the moving rod is fixedly connected to a fixed rod, and an inclined block is provided at one end of the moving rod away from the fixed rod. When the moving rod moves, the moving rod will exert a force on the bottom block, so that the bottom block drives the top rod to move upward.

[0011] Preferably, the outer molds are provided with two groups in total, and the bottom end of one of the two groups of outer molds is fixedly connected to the fixing rod.

[0012] Preferably, the outer wall of the base is fixedly connected to a fixed plate, and there are two groups of fixed plates in total. A guide rod is fixedly connected between the inner walls of the two groups of fixed plates, and its function is to further improve the sliding stability of the outer mold. The guide rod passes through the two groups of outer molds and is slidably connected to the two groups of outer molds. The outer walls of the two groups of outer molds are fixedly connected to the output end of the hydraulic cylinder.

[0013] The utility model provides a mold that is convenient and quick to demould. It has the following beneficial effects:

[0014] (1) When the injection molding is completed, the hydraulic cylinder is started to move the outer mold toward the hydraulic cylinder. During this process, the fixed rod fixedly connected to the outer mold drives the moving rod to move. At this time, the moving rod exerts a force on the bottom block, so that the bottom block drives the ejector rod to move upward. This design can eject the workpiece from the inner mold through the upward movement of the ejector rod, thereby improving the efficiency of mold injection.

[0015] (2) For this mold that is easy to demold quickly, when the hydraulic cylinder pushes the outer mold to move toward the middle, the moving rod returns to its original position. During this process, the pressure on the bottom block disappears. At this time, the spring will exert a force on the slider, so that the ejector rod can return to its original position and the next injection molding can be completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 The overall three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0018] Figure 2 The overall three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the overall three-dimensional part of the utility model.

[0020] Description of Figure Numbers:

[0021] 1. Base; 11. Sliding groove; 2. Outer mold; 3. Fixed plate; 4. Hydraulic cylinder; 5. Guide rod; 6. Inner mold; 7. Lifting device; 71. Push rod; 72. Spring; 73. Sliding block; 74. Bottom block; 75. Moving rod; 76. Fixed rod.

[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-Figure 3 The utility model proposes a mold for convenient and quick demoulding, including a base 1, the base 1 is provided with a sliding groove 11, the sliding groove 11 is slidably connected to an outer mold 2, two groups of outer molds 2 are provided, the outer wall of the base 1 is fixedly connected to a fixing plate 3, two groups of fixing plates 3 are provided, a guide rod 5 is fixedly connected between the inner walls of the two groups of fixing plates 3, the guide rod 5 passes through the two groups of outer molds 2 and is slidably connected to the two groups of outer molds 2, the outer walls of the two groups of outer molds 2 are fixedly connected to the output end of the hydraulic cylinder 4, the outer wall of the base 1 is fixedly connected to an inner mold 6, and a lifting device 7 is provided inside the inner mold 6.

[0025] In the embodiment of the present utility model, in order to lift the workpiece, specifically, the lifting device 7 includes a push rod 71, the push rod 71 passes through the inner mold 6 and is slidably connected to the inner mold 6, a slider 73, the slider 73 is penetrated by the push rod 71 and is fixedly connected to the inner wall of the slider 73, the slider 73 is slidably connected to the inner wall of the inner mold 6, the outer wall of the slider 73 is fixedly connected with a spring 72, the end of the spring 72 away from the slider 73 is fixedly connected to the inner wall of the inner mold 6, a bottom block 74 is provided below the slider 73, the bottom block 74 is slidably connected to the inner wall of the inner mold 6, the bottom block 74 is fixedly connected to the bottom end of the push rod 71, a moving rod 75 is provided below the bottom block 74, the moving rod 75 is slidably connected to the inner wall of the inner mold 6, the outer wall of the moving rod 75 is fixedly connected to a fixing rod 76, and the bottom end of one of the two groups of outer molds 2 is fixedly connected to the fixing rod 76;

[0026] like Figure 3As shown, when the injection molding is completed, the hydraulic cylinder 4 is started, so that the outer mold 2 moves toward the hydraulic cylinder 4. When the outer mold 2 moves, the fixed rod 76 fixedly connected to the outer mold 2 will drive the moving rod 75 to move to the left. It should be noted that an inclined block is provided at the end of the moving rod 75 away from the fixed rod 76. When the moving rod 75 moves, the moving rod 75 will exert a force on the bottom block 74, so that the bottom block 74 drives the push rod 71 to move upward. At the same time, the spring 72 undergoes elastic deformation to produce elastic force. This design allows the push rod 71 to move upward, and can eject the workpiece from the inner mold 6, thereby improving the efficiency of mold injection. When the hydraulic cylinder 4 pushes the outer mold 2 to move toward the middle, the moving rod 75 moves to the right. During this process, the pressure on the bottom block 74 disappears. At this time, the spring 72 will exert a force on the slider 73, so that the push rod 71 can return to its original position.

[0027] When in use, first start the hydraulic cylinder 4 so that when the outer mold 2 moves to the middle, the moving rod 75 moves to the right. During this process, the pressure on the bottom block 74 disappears. At this time, the spring 72 will exert a force on the slider 73, so that the push rod 71 can return to its original position, and then the plastic solution is injected into the outer mold 2. After it cools down, the hydraulic cylinder 4 is started again to make the outer mold 2 move toward the hydraulic cylinder 4. When the outer mold 2 moves, the fixed rod 76 fixedly connected to the outer mold 2 will drive the moving rod 75 to move to the left. At this time, the moving rod 75 will exert a force on the bottom block 74, so that the bottom block 74 drives the push rod 71 to move upward, thereby ejecting the workpiece from the inner mold 6.

[0028] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A mold for convenient and quick demoulding, comprising a base (1), characterized in that: The base (1) is provided with a sliding groove (11), the sliding groove (11) is slidably connected to an outer mold (2), the outer wall of the base (1) is fixedly connected to an inner mold (6), a lifting device (7) is provided inside the inner mold (6), and the lifting device (7) comprises: A push rod (71), wherein the push rod (71) passes through the inner mold (6) and is slidably connected to the inner mold (6); A sliding block (73), wherein the sliding block (73) is penetrated by the push rod (71) and is fixedly connected to the inner wall of the sliding block (73).

2. A mold for convenient and quick demoulding according to claim 1, characterized in that: The slider (73) is slidably connected to the inner wall of the inner mold (6); the outer wall of the slider (73) is fixedly connected to a spring (72); and one end of the spring (72) away from the slider (73) is fixedly connected to the inner wall of the inner mold (6).

3. A mold for convenient and quick demoulding according to claim 2, characterized in that: A bottom block (74) is provided below the sliding block (73), the bottom block (74) is slidably connected to the inner wall of the inner mold (6), and the bottom block (74) is fixedly connected to the bottom end of the ejector rod (71).

4. A mold for convenient and quick demoulding according to claim 3, characterized in that: A moving rod (75) is provided below the bottom block (74), the moving rod (75) is slidably connected to the inner wall of the inner mold (6), and a fixing rod (76) is fixedly connected to the outer wall of the moving rod (75).

5. A mold for convenient and quick demoulding according to claim 1, characterized in that: The outer molds (2) are provided in two groups in total, and the bottom end of one of the two groups of outer molds (2) is fixedly connected to the fixing rod (76).

6. A mold for convenient and quick demoulding according to claim 1, characterized in that: A fixing plate (3) is fixedly connected to the outer wall of the base (1), and two groups of the fixing plates (3) are provided. A guide rod (5) is fixedly connected between the inner walls of the two groups of fixing plates (3). The guide rod (5) passes through the two groups of outer molds (2) and is slidably connected to the two groups of outer molds (2). The outer walls of the two groups of outer molds (2) are fixedly connected to the output end of the hydraulic cylinder (4).

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