Base mold of electric binding machine

Abstract

The utility model discloses a base mold of an electric binding machine. The base mold comprises a front mold assembly, a rear mold assembly and a side core-pulling assembly, the front mold assembly comprises a front mold fixing plate, a front mold base plate and a front mold plate which are sequentially arranged from top to bottom, a base female mold is arranged on the front mold plate, the rear mold assembly comprises a rear mold plate, a cushion block and a rear mold fixing plate, the rear mold plate, the cushion block and the rear mold fixing plate are sequentially arranged from top to bottom, a base male mold is arranged on the rear mold plate, and a base female mold is arranged on the base male mold. The base convex mold and the base concave mold form a base injection molding cavity; the side core-pulling assembly comprises an inclined guide piece and a side core, the side core is slidably arranged on the front mold plate, the inclined guide piece is fixedly arranged on the front mold fixing plate, the side core extends into the base injection molding cavity, an inclined guide hole is formed in the side core, the inclined guide piece is slidably connected into the inclined guide hole, an ejector rod is arranged in the side core, and the ejector rod is slidably arranged relative to the side core; a limiting groove is formed in the inclined guide piece, one end of the ejector rod extends into the inclined guide hole and is located in the limiting groove at the same time, and the other end of the ejector rod extends into the base injection molding cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a base mold of an electric binding machine. Background Art

[0002] Moulds are various moulds and tools used in industrial production to obtain the required products by methods such as injection moulding, blow moulding, extrusion, die casting or forging, smelting, stamping, etc. Injection moulds usually include a front mould and a back mould. When the front mould and the back mould are buckled, the molten material is injected into the cavity through the gate. When the mould is opened, the front mould and the back mould are separated to take out the plastic product.

[0003] A base on an electric binding machine is used to load batteries and power components. Since the base has side walls extending upward on both sides, and the side walls have complex structures such as multiple holes, grooves, and protrusions, the mold needs to use a side core assembly to form the structure on the side wall. When demolding, the side core assembly needs to be pulled out. However, the contact surface between the side core and the molded product is large, and there is a combination of the protrusion and the groove, which makes the side core and the molded product have a large friction force, which makes it difficult to separate the side core and the product. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model aims to provide a base mold for an electric binding machine to solve the technical problem in the prior art that the base of the binding machine and the side core are difficult to separate.

[0005] The utility model is implemented by the following technical scheme: an electric binding machine base mold, including a front mold component, a rear mold component and a side core pulling component;

[0006] The front mold assembly includes a front mold fixing plate, a front mold pad and a front mold plate, wherein the front mold fixing plate, the front mold pad and the front mold plate are arranged in sequence from top to bottom, and a base concave mold is provided on the front mold plate.

[0007] The rear mold assembly comprises a rear mold plate, a cushion block and a rear mold fixing plate, wherein the rear mold plate, the cushion block and the rear mold fixing plate are arranged in sequence from top to bottom, and a base convex mold is provided on the rear mold plate, and the base convex mold and the base concave mold form a base injection cavity;

[0008] The side core pulling assembly comprises an oblique guide and a side core, the side core can be slidably arranged on the front mold plate, the oblique guide is fixedly arranged on the front mold fixing plate, the side core extends into the injection molding cavity of the base, an oblique guide hole is arranged on the side core, the oblique guide is slidably connected to the oblique guide hole, a push rod is arranged in the side core, the push rod can be slidably arranged relative to the side core, a limiting groove is arranged on the oblique guide, one end of the push rod extends into the oblique guide hole and is simultaneously located in the limiting groove, and the other end of the push rod extends into the injection molding cavity of the base;

[0009] During demoulding, the oblique guide drives the side core to move outward, and the ejector rod moves relative to the side core under the action of the limiting groove, and the direction of relative movement of the ejector rod is opposite to the direction of demoulding movement of the side core.

[0010] In a possible implementation manner, the limiting groove is communicated with the oblique guide hole, and the bottom surface of the limiting groove is smoothly connected to the outer surface of the oblique guide member.

[0011] In a possible implementation manner, a first elastic member is sleeved on the push rod, one end of the first elastic member is connected to the push rod, and the other end of the first elastic member is connected to the side core.

[0012] In a possible implementation manner, a through hole is provided in the side core, two openings of the through hole are respectively connected to the inclined guide hole and the base injection cavity, and the ejector rod is disposed in the through hole.

[0013] In a possible implementation manner, the side core includes an outer slider and an inner slider that are detachably connected, the inclined guide hole is provided on the outer slider, and the inner slider extends into the injection molding cavity of the base.

[0014] In a possible embodiment, the push rod includes an outer rod and an inner rod that are connected, the outer rod is arranged in the outer sliding block, the inner rod is arranged in the inner sliding block, one end of the outer rod extends into the inclined guide hole, and one end of the inner rod extends into the injection molding cavity of the base.

[0015] In a possible implementation manner, a positioning protrusion is provided on the inner side wall of the outer sliding block, and a positioning groove cooperating with the positioning protrusion is provided on the outer side wall of the inner sliding block.

[0016] In a possible implementation, a first guide column is provided on the front mold fixing plate, a first guide hole is provided on the rear mold plate, and the first guide column is slidably connected in the first guide hole.

[0017] In a possible embodiment, it also includes a lifting assembly, which includes a lifting plate and a plurality of ejector pins arranged on the lifting plate, the lifting plate is arranged on the rear mold fixing plate, and a plurality of pinholes are arranged on the base punch, and each of the ejector pins is slidably connected to each of the ejector pin holes.

[0018] In a possible embodiment, a second guide column is provided on the lifting plate, a second guide hole is provided on the rear template, the second guide column is slidably connected in the second guide hole, a second elastic member is sleeved on the second guide column, one end of the second elastic member abuts against the lifting plate, and the other end of the second elastic member abuts against the rear template.

[0019] Compared with the prior art, the beneficial effect of the utility model is that when the molded product needs to be demolded, the front mold fixing plate is separated from the front mold plate under the drive of an external driving member, and the front mold fixing plate drives the inclined guide to move together, and the inclined guide drives the side core away from the molded product, and the inclined guide will resist the push rod while rising, and the push rod will resist the molded product, avoiding the molded product from being offset under the action of the side core, greatly improving the convenience of product demolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the base mold of the electric binding machine of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the front mold assembly in the base mold of the electric binding machine of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the front mold assembly in the base mold of the electric binding machine of the utility model in the mold opening state;

[0023] Figure 4 It is a structural schematic diagram of the rear mold assembly in the base mold of the electric binding machine of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the rear mold assembly in the base mold of the electric binding machine of the utility model in the mold opening state;

[0025] Figure 6 It is a structural schematic diagram of the side core of the base mold of the electric binding machine of the utility model;

[0026] Figure 7 It is an exploded schematic diagram of the side core of the base mold of the electric binding machine of the utility model;

[0027] Figure 8 It is a structural schematic diagram of the oblique guide in the base mold of the electric binding machine of the utility model.

[0028] In the figure:

[0029] 100, front mold fixing plate; 101, first guide column;

[0030] 200, front mold pad;

[0031] 300, front mold plate; 301, base die;

[0032] 400, rear template; 401, base punch; 402, first guide hole; 403, second guide hole;

[0033] 500, pad;

[0034] 600, rear mold fixing plate;

[0035] 700, side core; 701, oblique guide; 7011, limit groove; 702, oblique guide hole; 703, ejector rod; 7031, outer rod; 7032, inner rod; 704, first elastic member; 705, outer slider; 7051, positioning protrusion; 706, inner slider; 7061, positioning groove;

[0036] 800, lifting plate; 801, ejector pin; 802, second guide column; 803, second elastic member. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0040] like Figure 1-8The electric binding machine base mold shown in the figure includes a front mold assembly, a rear mold assembly and a side core pulling assembly; the front mold assembly includes a front mold fixing plate 100, a front mold pad 200 and a front mold plate 300, the front mold fixing plate 100, the front mold pad 200 and the front mold plate 300 are arranged in sequence from top to bottom, and the front mold plate 300 is provided with a base concave mold 301; the rear mold assembly includes a rear mold plate 400, a cushion block 500 and a rear mold fixing plate 600, the rear mold plate 400, the cushion block 500 and the rear mold fixing plate 600 are arranged in sequence from top to bottom, and the rear mold plate 400 is provided with a base convex mold 401, and the base convex mold 401 and the base concave mold 301 form a base injection cavity; the side core pulling assembly includes an oblique guide 701 and a side core 700, the side core 700 can be slidably arranged on the front mold plate 300, and the oblique guide 701 is fixedly arranged on the front mold fixing plate 100, the side core 700 extends into the injection molding cavity of the base, an inclined guide hole 702 is arranged on the side core 700, the inclined guide member 701 is slidably connected in the inclined guide hole 702, a push rod 703 is arranged in the side core 700, the push rod 703 is slidably arranged relative to the side core 700, a limiting groove 7011 is arranged on the inclined guide member 701, one end of the push rod 703 extends into the inclined guide hole 702 and is simultaneously located in the limiting groove 7011, and the other end of the push rod 703 extends into the injection molding cavity of the base; when demolding, the inclined guide member 701 drives the side core 700 to move outward, and the push rod 703 generates relative movement with the side core 700 under the action of the limiting groove 7011, and the direction of the relative movement of the push rod 703 is opposite to the direction of the demolding movement of the side core 700.

[0041] In this embodiment, when the molded product needs to be demolded, the front mold fixing plate 100 is separated from the front mold plate 300 under the drive of an external driving member, and the front mold fixing plate 100 drives the inclined guide 701 to move together. The inclined guide 701 will drive the side core 700 away from the molded product while rising, and when the inclined guide 701 starts to rise, the push rod 703 will slowly withdraw from the limiting groove 7011, so that the back side of the inclined guide 701 will conflict with the push rod 703, and the push rod 703 will not move with the side core 700, or the moving speed of the push rod 703 is slower than the moving speed of the side core 700, so that the side core 700 is separated from the molded product earlier than the push rod 703, so that the side core 700 is more easily separated from the molded product.

[0042] Please refer to Figure 8 In a possible implementation, the limiting groove 7011 is connected to the oblique guide hole 702, and the bottom surface of the limiting groove 7011 is smoothly connected to the outer surface of the oblique guide 701. It is easy to understand that the bottom surface of the limiting groove 7011 is smoothly connected to the outer surface of the oblique guide 701, so that the oblique guide 701 can slowly push the ejector 703 during the rising process, so that the ejector 703 is always in a state of conflict with the molded product, which helps to separate the side core 700 from the molded product more smoothly.

[0043] Please refer to Figure 7 In a possible implementation, a first elastic member 704 is sleeved on the ejector pin 703, one end of the first elastic member 704 is connected to the ejector pin 703, and the other end of the first elastic member 704 is connected to the side core 700. In this embodiment, the first elastic member 704 is a spring, and the provision of the first elastic member 704 enables the ejector pin 703 to automatically reset. When the mold is re-closed, one end of the ejector pin 703 needs to be re-extended into the limiting groove 7011, and the ejector pin 703 is reset by the elastic force of the first elastic member 704 without the support of the inclined guide member 701.

[0044] Please refer to Figure 6 and Figure 7 In a possible implementation, a through hole is provided in the side core 700, and two openings of the through hole are respectively connected to the inclined guide hole 702 and the base injection cavity, and the ejector pin 703 is provided in the through hole. It is easy to understand that the through hole is provided on the side core 700 to provide installation space for the ejector pin 703 and the first elastic member 704, and when the ejector pin 703 needs to be maintained or replaced, the ejector pin 703 can be conveniently removed from the side core 700.

[0045] Please refer to Figure 7 In this embodiment, the side core 700 includes an outer slider 705 and an inner slider 706 that are detachably connected, the oblique guide hole 702 is provided on the outer slider 705, and the inner slider 706 extends into the base injection cavity. It should be noted that the outer slider 705 and the inner slider 706 are fixed together by fastening bolts, and the inner slider 706 has a molding surface on one side close to the base die 301, and the molding surface is used to form various complex structures on the side wall of the product. Therefore, various parts for molding complex structures are provided inside the inner slider 706. When these parts need to be maintained or replaced, the outer slider 705 and the inner slider 706 can be disassembled to facilitate the maintenance and replacement of the parts by the staff.

[0046] Please refer to Figure 7In this embodiment, the top rod 703 includes an outer rod 7031 and an inner rod 7032 connected to each other. The outer rod 7031 is arranged in the outer slider 705, and the inner rod 7032 is arranged in the inner slider 706. One end of the outer rod 7031 extends into the inclined guide hole 702, and one end of the inner rod 7032 extends into the injection molding cavity of the base. It is easy to understand that there is no direct connection between the outer rod 7031 and the inner rod 7032. It is just that the end of the outer rod 7031 abuts against the end of the inner rod 7032. Dividing the top rod 703 into the outer rod 7031 and the inner rod 7032 can facilitate the installation of the top rod 703. In addition, the end of the outer rod 7031 extending into the inclined guide hole 702 is a round head to reduce the friction between the outer rod 7031 and the inclined guide member 701. The end of the inner rod 7032 that abuts against the outer rod 7031 is provided with a rod cap. The first elastic member 704 is sleeved on the inner rod 7032, so that one end of the first elastic member 704 abuts against the rod cap and the other end abuts against the inner slider 706. In addition, there are three top rods 703, which are arranged at intervals in the side core 700.

[0047] Please refer to Figure 7 In a possible implementation, a positioning protrusion 7051 is provided on the inner side wall of the outer slider 705, and a positioning groove 7061 is provided on the outer side wall of the inner slider 706 to cooperate with the positioning protrusion 7051. It is easy to understand that the arrangement of the positioning protrusion 7051 and the positioning groove 7061 can not only enable the outer slider 705 and the inner slider 706 to be quickly positioned during installation to improve installation efficiency and accuracy, but also enable the outer slider 705 and the inner slider 706 to be more tightly connected.

[0048] Please refer to Figure 2 and Figure 4 In a possible implementation, a first guide post 101 is provided on the front mold fixing plate 100, and a first guide hole 402 is provided on the rear mold plate 400, and the first guide post 101 is slidably connected in the first guide hole 402. It is easy to understand that the first guide hole 402 is provided on the front mold pad 200, the front mold plate 300, the cushion block 500 and the rear mold fixing plate 600, so that the first guide post 101 provided on the front mold fixing plate 100 directly penetrates to the rear mold fixing plate 600. The provision of the first guide post 101 can not only improve the stability of the mold movement when opening and closing the mold, but also play a role in positioning the installation of the entire mold.

[0049] Please refer to Figure 5In a possible embodiment, it further includes a lifting assembly, which includes a lifting plate 800 and a plurality of ejector pins 801 disposed on the lifting plate 800. The lifting plate 800 is disposed on the rear mold fixing plate 600. A plurality of pinholes are disposed on the base punch 401. Each ejector pin 801 is slidably connected to each ejector pin 801 hole. It is easy to understand that when the molded product needs to be demolded and the side core pulling mechanism and the front mold assembly have completed the movement, the molded product will remain on the rear mold plate 400, and the lifting plate 800 rises under the action of the external driving member, so that the molded product is ejected by the ejector pins 801, completing the demolding work.

[0050] Please refer to Figure 4 In a possible embodiment, a second guide column 802 is provided on the lifting plate 800, a second guide hole 403 is provided on the rear template 400, the second guide column 802 is slidably connected in the second guide hole 403, a second elastic member 803 is sleeved on the second guide column 802, one end of the second elastic member 803 abuts against the lifting plate 800, and the other end of the second elastic member 803 abuts against the rear template 400. It is easy to understand that the provision of the second guide column 802 can improve the stability of the movement of the lifting plate 800 during demoulding, and the provision of the second elastic member 803 can buffer the lifting movement of the lifting plate 800 and help reset the lifting assembly.

[0051] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A base mold for an electric binding machine, characterized in that: It includes a front mold assembly, a rear mold assembly and a side core pulling assembly; The front mold assembly includes a front mold fixing plate, a front mold pad and a front mold plate, wherein the front mold fixing plate, the front mold pad and the front mold plate are arranged in sequence from top to bottom, and a base concave mold is provided on the front mold plate. The rear mold assembly comprises a rear mold plate, a cushion block and a rear mold fixing plate, wherein the rear mold plate, the cushion block and the rear mold fixing plate are arranged in sequence from top to bottom, and a base convex mold is provided on the rear mold plate, and the base convex mold and the base concave mold form a base injection cavity; The side core pulling assembly comprises an oblique guide and a side core, the side core can be slidably arranged on the front mold plate, the oblique guide is fixedly arranged on the front mold fixing plate, the side core extends into the injection molding cavity of the base, an oblique guide hole is arranged on the side core, the oblique guide is slidably connected to the oblique guide hole, a push rod is arranged in the side core, the push rod can be slidably arranged relative to the side core, a limiting groove is arranged on the oblique guide, one end of the push rod extends into the oblique guide hole and is simultaneously located in the limiting groove, and the other end of the push rod extends into the injection molding cavity of the base; During demoulding, the oblique guide drives the side core to move outward, and the ejector rod moves relative to the side core under the action of the limiting groove, and the direction of relative movement of the ejector rod is opposite to the direction of demoulding movement of the side core.

2. The electric binding machine base mold according to claim 1, characterized in that: The limiting groove is communicated with the oblique guide hole, and the bottom surface of the limiting groove is smoothly connected to the outer surface of the oblique guide member.

3. The electric binding machine base mold according to claim 1, characterized in that: A first elastic member is sleeved on the push rod, one end of the first elastic member is connected to the push rod, and the other end of the first elastic member is connected to the side core.

4. The electric binding machine base mold according to claim 1, characterized in that: A through hole is provided in the side core, two openings of the through hole are respectively connected with the inclined guide hole and the base injection cavity, and the ejector rod is arranged in the through hole.

5. The electric binding machine base mold according to claim 1, characterized in that: The side core comprises an outer slider and an inner slider which are detachably connected, the oblique guide hole is arranged on the outer slider, and the inner slider extends into the injection molding cavity of the base.

6. The electric binding machine base mold according to claim 5, characterized in that: The ejector rod comprises an outer rod and an inner rod connected to each other, wherein the outer rod is arranged in the outer slider, the inner rod is arranged in the inner slider, one end of the outer rod extends into the inclined guide hole, and one end of the inner rod extends into the base injection molding cavity.

7. The electric binding machine base mold according to claim 5, characterized in that: A positioning protrusion is provided on the inner side wall of the outer sliding block, and a positioning groove matched with the positioning protrusion is provided on the outer side wall of the inner sliding block.

8. The electric binding machine base mold according to claim 1, characterized in that: The front mold fixing plate is provided with a first guide column, the rear mold plate is provided with a first guide hole, and the first guide column is slidably connected in the first guide hole.

9. The electric binding machine base mold according to claim 1, characterized in that: It also includes a lifting component, which includes a lifting plate and a plurality of ejector pins arranged on the lifting plate. The lifting plate is arranged on the rear mold fixing plate. The base punch is provided with a plurality of pinholes, and each of the ejector pins is slidably connected in each of the ejector pin holes.

10. The electric binding machine base mold according to claim 9, characterized in that: The lifting plate is provided with a second guide column, the rear template is provided with a second guide hole, the second guide column is slidably connected in the second guide hole, the second guide column is sleeved with a second elastic member, one end of the second elastic member abuts against the lifting plate, and the other end of the second elastic member abuts against the rear template.

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