Controllable mold opening stroke component and device for injection molding

Abstract

The present application provides a mold opening stroke controllable component for injection molding and a device thereof. The above-mentioned mold opening stroke controllable component for injection molding includes a fastening component, a stroke limit pull rod and an adjustment stopper. One end of the stroke limit pull rod is connected to the upper mold plate, and the other end of the stroke limit pull rod is provided with a movable adjustment through hole and a positioning groove that are interconnected; the first locking member is penetrated through the movable adjustment through hole and connected to the lower mold plate, and an adjustment positioning portion is formed on the inner circumferential wall on one side of the movable adjustment through hole, and the notch of the positioning groove passes through the inner circumferential wall on the other side of the movable adjustment through hole and faces the adjustment positioning portion, and the adjustment positioning portion is provided with a plurality of positioning notches. The upper end of the adjustment stopper is located in the positioning groove, and the lower end of the adjustment stopper is clamped in the corresponding positioning notch. The above-mentioned mold opening stroke controllable component for injection molding can adjust the mold opening strokes of different molds, effectively improving the compatibility of the mold opening stroke controllable component for injection molding.

Description

Technical Field

[0001] The utility model relates to the technical field of polymer injection molding molds, in particular to a mold opening stroke controllable component for injection molding and a device thereof. Background Art

[0002] At present, the application of plastic products has been integrated into all aspects of human life, and its application fields cover packaging, home appliances, automobile industry, construction and medical fields, etc.; among them, plastic products in common electronic equipment related fields, such as USB dust covers, key panels, plastic lampshades, display back shells, and back covers or front shells used for insulation decoration, etc., all require the design of corresponding injection molding molds to complete the mass production of plastic products.

[0003] Since the above-mentioned plastic products are mostly user products with high requirements on appearance, most mold manufacturers at this stage will adopt a three-plate mold structure design, and the corresponding glue injection method will also adopt a point gate to minimize the impact of injection molding on the appearance surface, thereby improving the quality and aesthetics of the molded plastic products.

[0004] In the mold structure design of the traditional point-gate three-plate mold, in order to ensure the opening sequence and mold opening stroke of the upper mold plate, the lower mold plate and the stripper plate, an internal tie rod is usually arranged in the mold, and a limit block (also called a sprue plate tie rod or an external tie rod) is arranged on the outer side of the upper mold plate and the lower mold plate; for example, Chinese patent document CN217531706U discloses an injection three-plate mold, and the above-disclosed technical solution adopts a combination of a limit block and an internal tie rod to achieve the control of the mold opening action and mold opening stroke.

[0005] However, the technical solution disclosed in the above patent still has the following problems: although the coordination between the limit block and the first limit nut and the second limit nut structure is relatively simple, the limit groove of the limit block can limit the moving distance of the second limit nut to be fixed, that is, the opening stroke of the upper template and the lower template is fixed; therefore, it can be seen that the limit block has the problem of poor compatibility, so that the limit block cannot adapt to molds with different opening strokes. Utility Model Content

[0006] The utility model aims to overcome the shortcomings of the prior art and provide a controllable mold opening stroke component and a device for injection molding which can adjust the mold opening stroke and has good compatibility.

[0007] The purpose of this utility model is achieved through the following technical solutions:

[0008] A mold opening stroke controllable component for injection molding, used for limiting the mold opening stroke of an upper mold plate and a lower mold plate, comprising:

[0009] A fastening assembly including a first locking member;

[0010] A travel limit rod, one end of which is connected to the upper template, and the other end of which is provided with a movable adjustment through hole and a positioning groove that are in communication; the first locking member is passed through the movable adjustment through hole and connected to the lower template, an adjustment positioning portion is formed on the inner circumferential wall of one side of the movable adjustment through hole, the notch of the positioning groove passes through the inner circumferential wall of the other side of the movable adjustment through hole and faces the adjustment positioning portion, and the adjustment positioning portion is provided with a plurality of positioning notches;

[0011] An adjusting stop member, wherein the upper end of the adjusting stop member is located in the positioning groove, and the lower end of the adjusting stop member is clamped in the corresponding positioning notch.

[0012] In one of the embodiments, the fastening assembly further includes a second locking member;

[0013] A connecting through hole is provided at one end of the travel limit pull rod, and the second locking member is passed through the connecting through hole and is threadedly connected to the threaded hole of the upper template.

[0014] In one embodiment, the first locking member is threadedly connected to the lower template.

[0015] In one embodiment, the plurality of positioning notches are linearly distributed.

[0016] In one of the embodiments, a plurality of positioning concave areas are defined in the positioning groove, the plurality of positioning concave areas are linearly distributed, and the plurality of positioning concave areas are arranged in one-to-one correspondence with the plurality of positioning notches.

[0017] In one embodiment, the adjustment stop member includes a screw member and a stop block; one end of the screw member is disposed in the positioning recess, and the other end of the screw member is screwed to the stop block; the stop block is formed with a clamping portion matching the positioning notch.

[0018] In one embodiment, the travel limit pull rod is an integrally formed structure.

[0019] A controllable mold opening stroke device for injection molding comprises the controllable mold opening stroke component for injection molding described in any one of the above embodiments.

[0020] Compared with the prior art, the utility model has at least the following advantages:

[0021] When the lower end of the adjustment stop member is engaged with different positioning notches, the different moving distances of the first locking member in the movable adjustment through hole can be adjusted and limited, so that the controllable mold opening stroke component for injection molding can adjust the mold opening strokes of different molds, thereby effectively improving the compatibility of the controllable mold opening stroke component for injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of a structure of a controllable mold opening stroke component for injection molding in one embodiment;

[0024] Figure 2 for Figure 1 A front view of a controllable mold opening stroke assembly for injection molding shown;

[0025] Figure 3 for Figure 1 Another structural schematic diagram of a controllable mold opening stroke component for injection molding is shown. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] The present disclosure provides a controllable mold opening stroke component for injection molding, which is used to limit the mold opening stroke of the upper mold plate and the lower mold plate. The controllable mold opening stroke component for injection molding includes a fastening component, a stroke limit pull rod and an adjustment stop member. The fastening component includes a first locking member. One end of the stroke limit pull rod is connected to the upper mold plate, and the other end of the stroke limit pull rod is provided with a connected movable adjustment through hole and a positioning groove; the first locking member is penetrated through the movable adjustment through hole and connected to the lower mold plate, and an adjustment positioning portion is formed on the inner circumferential wall on one side of the movable adjustment through hole, and the notch of the positioning groove passes through the inner circumferential wall on the other side of the movable adjustment through hole and faces the adjustment positioning portion, and the adjustment positioning portion is provided with a plurality of positioning notches. The upper end of the adjustment stop member is located in the positioning groove, and the lower end of the adjustment stop member is clamped in the corresponding positioning notch.

[0030] See also Figures 1 to 3 In order to better understand the mold opening stroke controllable component 10 for injection molding of the present application, the following further explains the mold opening stroke controllable component 10 for injection molding:

[0031] A mold opening stroke controllable component 10 for injection molding in one embodiment includes a fastening component 100, a stroke limit rod 200 and an adjustment stopper 300. The fastening component 100 includes a first locking component 110. One end of the stroke limit rod 200 is connected to the upper template (not shown), and the other end of the stroke limit rod 200 is provided with a movable adjustment through hole 201 and a positioning groove 202 that are connected to each other; the first locking component 110 is penetrated through the movable adjustment through hole 201 and connected to the lower template (not shown), and an adjustment positioning portion 210 is formed on the inner peripheral wall of one side of the movable adjustment through hole 201, and the notch of the positioning groove 202 passes through the inner peripheral wall of the other side of the movable adjustment through hole 201 and faces the adjustment positioning portion 210, and the adjustment positioning portion 210 is provided with a plurality of positioning notches 2101. The upper end of the adjusting stopper 300 is located in the positioning groove 202 , and the lower end of the adjusting stopper 300 is engaged with the corresponding positioning notch 2101 .

[0032] In this embodiment, when the lower end of the adjustment stop member 300 is engaged with different positioning notches 2101, it can adjust and limit the different moving distances of the first locking member 110 in the movable adjustment through hole 201, so that the mold opening stroke controllable component 10 for injection molding can adjust the mold opening strokes of different molds, thereby effectively improving the compatibility of the mold opening stroke controllable component 10 for injection molding.

[0033] like Figures 1 to 3 As shown, in one embodiment, the fastening assembly 100 further includes a second locking member 120. A connecting through hole 203 is provided at one end of the travel limit pull rod 200, and the second locking member 120 is passed through the connecting through hole 203 and is threadedly connected to the threaded hole of the upper template. In one embodiment, the first locking member 110 is threadedly connected to the lower template.

[0034] It can be understood that in this embodiment, the first locking member 110 and the second locking member 120 are both hexagon socket flat head screws, and the second locking member 120 is threadedly connected to the threaded hole of the upper template (not shown), which is simple, reliable and easy to install. Since the first locking member 110 is threadedly connected to the lower template, when the lower template moves to open the mold, the first locking member 110 will move along the radial direction of the movable adjustment through hole 201 to abut against the adjustment stop member 300, thereby completing the mold opening stroke of the upper template and the lower template. Among them, when the lower end of the adjustment stop member 300 is clamped in different positioning notches 2101, the movement stroke of the first locking member 110 in the movable adjustment through hole 201 can be adjusted by adjusting the stop member 300, thereby adjusting the mold opening stroke of the upper template and the lower template, which effectively improves the compatibility of the mold opening stroke controllable component 10 for injection molding.

[0035] like Figure 1 and Figure 2 As shown, in one embodiment, the plurality of positioning notches 2101 are linearly distributed. It can be understood that the plurality of positioning notches 2101 are linearly distributed, the structural design is reasonable, and the processing is convenient. The user can also set the distance between the positioning notches 2101 to more accurately control the mold opening stroke.

[0036] like Figures 1 to 3As shown, in one embodiment, a plurality of positioning concave areas 204 are provided in the positioning groove 202, and the plurality of positioning concave areas 204 are arranged in a linear distribution, and the plurality of positioning concave areas 204 are arranged one-to-one with the plurality of positioning notches 2101. In one embodiment, the adjustment stopper 300 includes a screw member 310 and a stopper block 320; one end of the screw member 310 is provided in the positioning concave area 204, and the other end of the screw member 310 is screwed to the stopper block 320; the stopper block 320 is formed with a clamping portion 3210 matching the positioning notch 2101.

[0037] It can be understood that in this embodiment, the screw member 310 is a hexagon socket flat head screw, the head of the hexagon socket flat head screw is positioned in the positioning recessed area 204, and the clamping portion 3210 of the stop block 320 is clamped in the positioning notch 2101. The above-mentioned adjustment stop member 300 is easy to install and can realize the movable limiting of the first locking member 110. Its structural connection is reliable and simple to manufacture.

[0038] like Figure 1 As shown, in one embodiment, the travel limit rod 200 is an integrally formed structure. It can be understood that there is a large pulling force when the lower mold plate moves to open the mold. The use of an integrally formed structure can make the travel limit rod 200 have a good structural connection strength, thereby ensuring that the mold can normally and smoothly complete the mold opening action and effectively preventing the travel limit rod 200 from being broken.

[0039] The present application also provides a controllable mold opening stroke device for injection molding, including the controllable mold opening stroke component 10 for injection molding described in any of the above embodiments.

[0040] In this embodiment, when the lower end of the adjustment stop member is engaged with different positioning notches, the different moving distances of the first locking member in the movable adjustment through hole can be adjusted and limited, so that the controllable mold opening stroke device for injection molding can adjust the mold opening strokes of different molds, thereby effectively improving the compatibility of the controllable mold opening stroke device for injection molding.

[0041] Compared with the prior art, the utility model has at least the following advantages:

[0042] When the lower end of the adjustment stop member is engaged with different positioning notches, the different moving distances of the first locking member in the movable adjustment through hole can be adjusted and limited, so that the controllable mold opening stroke component for injection molding can adjust the mold opening strokes of different molds, thereby effectively improving the compatibility of the controllable mold opening stroke component for injection molding.

[0043] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A mold opening stroke controllable component for injection molding, used to limit the mold opening stroke of the upper mold plate and the lower mold plate, characterized in that: include: A fastening assembly including a first locking member; A travel limit rod, one end of which is connected to the upper template, and the other end of which is provided with a movable adjustment through hole and a positioning groove that are in communication; the first locking member is passed through the movable adjustment through hole and connected to the lower template, an adjustment positioning portion is formed on the inner circumferential wall of one side of the movable adjustment through hole, the notch of the positioning groove passes through the inner circumferential wall of the other side of the movable adjustment through hole and faces the adjustment positioning portion, and the adjustment positioning portion is provided with a plurality of positioning notches; An adjusting stop member, wherein the upper end of the adjusting stop member is located in the positioning groove, and the lower end of the adjusting stop member is clamped in the corresponding positioning notch.

2. The mold opening stroke controllable component for injection molding according to claim 1, characterized in that: The fastening assembly further includes a second locking member; A connecting through hole is provided at one end of the travel limit pull rod, and the second locking member is passed through the connecting through hole and is threadedly connected to the threaded hole of the upper template.

3. The mold opening stroke controllable component for injection molding according to claim 1, characterized in that: The first locking member is threadedly connected to the lower template.

4. The mold opening stroke controllable component for injection molding according to claim 1, characterized in that: The plurality of positioning notches are arranged in a linear distribution.

5. The mold opening stroke controllable component for injection molding according to claim 4, characterized in that: A plurality of positioning concave areas are provided in the positioning groove, the plurality of positioning concave areas are arranged in a linear distribution, and the plurality of positioning concave areas are arranged in a one-to-one correspondence with the plurality of positioning notches.

6. The mold opening stroke controllable component for injection molding according to claim 5, characterized in that: The adjusting stop member comprises a screw member and a stop block; one end of the screw member is arranged in the positioning recessed area, and the other end of the screw member is screwed to the stop block; the stop block is formed with a clamping portion matching the positioning notch.

7. The mold opening stroke controllable component for injection molding according to claim 1, characterized in that: The travel limit pull rod is an integrally formed structure.

8. A controllable mold opening stroke device for injection molding, characterized in that: The invention comprises a controllable mold opening stroke component for injection molding according to any one of claims 1 to 7.

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