Mini movable block mechanism of injection mold

Abstract

The utility model belongs to the field of injection molds, and particularly relates to a mini movable block mechanism of an injection mold, which comprises two pressing strips, a sliding block seat, an inclined guide post, a movable block and two movable pins, a linkage part and a guide part are respectively arranged at two ends of each movable pin, and the movable block is provided with two positioning grooves matched with the linkage parts of the two movable pins. The two pressing strips are provided with guide slopes and guide receding grooves matched with the guide parts of the two movable pins, when the guide parts of the two movable pins slide to the guide slopes, the linkage parts of the two movable pins are clamped in the positioning grooves of the movable blocks, and when the guide parts of the two movable pins slide to the guide receding grooves, the linkage parts of the two movable pins are clamped in the positioning grooves of the movable blocks. And the linkage parts of the two movable pins are separated from the positioning grooves. According to the mini movable block mechanism provided by the utility model, when a mold is opened and closed, the sliding block seat can be opened or closed with the movable block along with the mold opening and closing action, and an operator only needs to take out and put back the movable block, so that the installation of the movable block and an insert is facilitated, and the production of the mold is favorably improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to injection mold technical field, concretely relates to a kind of mini movable block mechanism of injection mold. BACKGROUND

[0002] Mold is used in industrial production to obtain the required product by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods. When designing injection mold, there is a case of placing inserts with movable blocks. The movable block structure design is complex, and the positioning structure, guide structure, manual placement and mechanical opening structure of the movable block need to be fully considered during design. Therefore, a larger space is usually required to place the movable block.

[0003] The existing movable block mechanism of injection mold has a complex structure design, high cost and large size, which increases the length of the flow channel and the cost of mold manufacturing. When installing inserts on the movable block, the opening steps of the movable block are complicated, which greatly affects the production efficiency of the mold. SUMMARY

[0004] The utility model aims at overcoming the shortcomings and deficiencies of the prior art, and provides a composite slide block mechanism of injection mold.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a mini movable block mechanism of injection mold, comprising two compression strips, a slide block seat slidingly arranged between the two compression strips, an inclined guide column arranged on a static mold plate and slidingly connected with the slide block seat, a movable block arranged between the two compression strips and used for placing inserts, and two movable pins movably arranged on the slide block seat. The movable pins have linkage parts and guide parts at both ends respectively. The movable block has two positioning grooves matched with the linkage parts of the two movable pins. The two compression strips are provided with guide inclined surfaces and guide clearance grooves matched with the guide parts of the two movable pins. When the guide parts of the two movable pins slide onto the guide inclined surfaces, the linkage parts of the two movable pins are engaged in the positioning grooves of the movable block. When the guide parts of the two movable pins slide into the guide clearance grooves, the linkage parts of the two movable pins are separated from the positioning grooves.

[0006] In some embodiments, the guide parts of the two movable pins are provided with inclined surfaces matched with the two guide inclined surfaces.

[0007] In some embodiments, the inclined guide column has a connecting part connected with the static mold plate at one end, and has a guide rod part matched with the slide block seat at the other end. The slide block seat is provided with a guide inclined hole matched with the guide rod part. The guide rod part is inserted into the guide inclined hole, and the guide rod part and the slide block seat are slidingly connected and matched.

[0008] In some embodiments, two positioning cores are arranged between the two pressing strips and the movable block, and upper ends of the two positioning cores are respectively provided with guiding curved surfaces matched with the movable block.

[0009] In some embodiments, the sliding block seat is provided with two through holes matched with two movable pins, and the two movable pins are respectively inserted into the two through holes.

[0010] In some embodiments, a handle for taking out the movable block is arranged on an upper end surface of the movable block.

[0011] In some embodiments, one end of the handle has a clamping rod matched with the movable block, the movable block is provided with a clamping groove matched with the clamping rod, the clamping rod is inserted into the clamping groove, and the clamping rod and the movable block are clamped.

[0012] In some embodiments, the other end of the handle has a handle rod exposed outside the movable block, and an outer peripheral wall of the handle rod has a holding curved surface.

[0013] The mini movable block mechanism has the advantages that the structure design is simple, the cost is lower, the design space of the mold is saved, and the length of the flow channel is shortened. When the mold is opened and closed, the sliding block seat can be opened or closed with the movable block through the opening and closing action, the operator only needs to take out and put back the movable block, and the installation of the movable block and the insert can be completed, so that the production efficiency of the mold is improved. When the mold is opened, the stationary mold plate pulls the sliding block seat through the inclined guide pillar, the sliding block seat pulls the movable block to perform the opening action through the two movable pins, the guide portions of the two movable pins slide into the guide grooves from the guide inclined surfaces, and the two linkage portions of the two movable pins are separated from the positioning grooves of the movable block, so that the operator can easily take out the movable block and easily put the insert into the insert hole of the movable block. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced.

[0015] Figure 1 is a perspective view of an embodiment of the present application;

[0016] Figure 2 is an exploded view of an embodiment of the present application;

[0017] Figure 3 is a perspective view of a pressing strip of an embodiment of the present application;

[0018] Figure 4 is a perspective view of a movable pin of an embodiment of the present application. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. The description and the drawings are to be regarded as illustrative in nature and are not intended to limit the scope of the application.

[0021] The terms of direction and position mentioned in the present application, such as up, down, front, back, left, right, inner, outer, top, bottom, side, etc., are only the direction or position of the drawings. Therefore, the terms of direction and position used are used to explain and understand the present application, and are not a limitation on the scope of protection of the present application.

[0022] The present application will be further described in conjunction with the drawings and specific embodiments:

[0023] As Figures 1-4As shown in the figure, a kind of mini movable block mechanism of injection mold, including two compression bars 10, the slider block 11 slidingly arranged between the two compression bars 10, the inclined guide pillar 12 arranged on the static mold plate and slidingly connected with the slider block 11, the movable block 13 arranged between the two compression bars 10 and used for placing insert, two movable pins 14 movably arranged on the slider block 11, the movable pin 14 has linkage portion 141 and guide portion 142 at both ends respectively, the movable block 13 has two positioning grooves 131 matched with the linkage portion 141 of the two movable pins 14, the two compression bars 10 are provided with guide inclined surface 101 and guide clearance groove 102 matched with the guide portion 142 of the two movable pins 14, when the guide portion 142 of the two movable pins 14 slides to the guide inclined surface 101, the linkage portion 141 of the two movable pins 14 is engaged in the positioning groove 131 of the movable block 13, when the guide portion 142 of the two movable pins 14 slides to the guide clearance groove 101, the linkage portion 141 of the two movable pins 14 is separated from the positioning groove 131. The guide portion 142 of the two movable pins 14 is provided with inclined surface 1421 matched with the two guide inclined surfaces 101. The guide portion is matched with the guide inclined surface through the inclined surface, so that the guide portion of the movable pin can reliably and smoothly slide to the guide inclined surface, and the action reliability is higher.

[0024] As shown in the figure, Figure 1 and 2 As shown in the figure, the inclined guide pillar 12 has a connecting portion 121 connected with the static mold plate at one end, and has a guide rod portion 122 matched with the slider block 11 at the other end, the slider block 11 is provided with a guide inclined hole 111 matched with the guide rod portion 122, the guide rod portion 122 is inserted in the guide inclined hole 111, and the sliding connection of the guide rod portion 122 and the slider block 11 is formed. The guide rod portion of the inclined guide pillar plays a guiding role for the slider block, so that the slider block can reliably act, and the working reliability is higher.

[0025] As shown in the figure, Figure 1 As shown in the figure, two positioning cores 15 are arranged between the two compression bars 10 and the movable block 13, and the guide arc surface 151 matched with the movable block 13 is arranged at the upper end of the two positioning cores 15. The two positioning cores play a positioning role for the movable block, and the guide arc surface plays a guiding role for the movable block, so as to facilitate the operator to put back the movable block. The slider block 11 is provided with two through holes 112 matched with the two movable pins 14, and the two movable pins 14 are respectively inserted in the two through holes 112. The movable pin insertion slot is in the through hole of the slider block, so that the movable pin can reliably slide on the slider block, and the action reliability is higher.

[0026] As shown in the figure, Figure 1 and 2As shown, a handle 16 for removing the movable block 13 is provided on the upper surface of the movable block 13. The handle facilitates the operator's removal of the movable block. One end of the handle 16 has a locking rod portion 161 that mates with the movable block 13. The movable block 13 has a locking groove 132 that mates with the locking rod portion 161. The locking rod portion 161 is inserted into the locking groove 132, forming a locking engagement between the locking rod portion 161 and the movable block 13. The handle engages with the movable block via the locking rod portion, making assembly more convenient. The other end of the handle 16 has a handle rod portion 162 protruding from the movable block 13. The outer peripheral wall of the handle rod portion 162 has a gripping arc surface 1621. The gripping arc surface increases the gripping area, making it easier for the operator to remove and place the movable block.

[0027] The beneficial effects of this utility model are as follows: The mini movable block mechanism has a simple structural design, lower cost, saves mold design space, and shortens the flow channel length. During mold opening and closing, the slider seat opens or closes along with the movable block. Operators only need to remove and place the movable block to complete the installation of the movable block and insert, thereby improving the production efficiency of the mold. During mold opening, the stationary platen pulls the slider seat via the inclined guide post. The slider seat, through two movable pins, pulls the movable block to perform the opening action. The guide parts of the two movable pins slide from the guide inclined surface into the guide groove, and the two linkage parts of the two movable pins separate from the positioning groove of the movable block, making it easy for operators to remove the movable block and easily insert the insert into the insert hole of the movable block. This makes operation convenient and more efficient. During mold closing, the movable block is placed between the two positioning cores. The inclined guide post pushes the slider seat towards the movable block, and the slider seat drives the two movable pins to move. The guide parts of the two movable pins slide from the guide groove to the guide inclined surface, so that the linkage parts of the two movable pins are inserted into the positioning groove of the movable block, thereby locking the movable block with the two movable pins. This makes it easier to put the movable block back, making the operation more convenient and efficient.

[0028] The above description is only one embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model; the scope of protection of the present utility model is defined by the claims in the claims, and all equivalent changes and modifications made in accordance with the utility model are within the scope of protection of the present utility model patent.

Claims

1. A miniature movable block mechanism for an injection mold, characterized in that: The device includes two pressure strips, a slider seat slidably disposed between the two pressure strips, an inclined guide post disposed on a static template and slidably connected to the slider seat, a movable block disposed between the two pressure strips for placing an insert, and two movable pins movably disposed on the slider seat. Each movable pin has a linkage part and a guide part at both ends. The movable block has two positioning grooves that cooperate with the linkage parts of the two movable pins. The two pressure strips are provided with guide slopes and guide relief grooves that cooperate with the guide parts of the two movable pins. When the guide parts of the two movable pins slide to the guide slopes, the linkage parts of the two movable pins engage in the positioning grooves of the movable block. When the guide parts of the two movable pins slide to the guide relief grooves, the linkage parts of the two movable pins separate from the positioning grooves.

2. The mini movable block mechanism of the injection mold according to claim 1, characterized in that: The guide portion of the two movable pins is provided with an inclined surface that cooperates with the two guide inclined surfaces.

3. The miniature movable block mechanism of the injection mold according to claim 1 or 2, characterized in that: One end of the inclined guide post has a connecting part that connects to the static template, and the other end of the inclined guide post has a guide rod part that cooperates with the slider seat. The slider seat is provided with a guide inclined hole that cooperates with the guide rod part. The guide rod part is inserted into the guide inclined hole and forms a sliding connection between the guide rod part and the slider seat.

4. The miniature movable block mechanism of the injection mold according to claim 1 or 2, characterized in that: Two positioning cores are provided between the two pressure strips and the movable block, and the upper ends of the two positioning cores are respectively provided with guide arc surfaces that cooperate with the movable block.

5. The miniature movable block mechanism of the injection mold according to claim 1 or 2, characterized in that: The slider seat is provided with two through holes that cooperate with two movable pins, and the two movable pins are respectively inserted into the two through holes.

6. The miniature movable block mechanism of the injection mold according to claim 1, characterized in that: The movable block is provided with a handle on its upper surface for removing the movable block.

7. The miniature movable block mechanism of the injection mold according to claim 6, characterized in that: One end of the handle has a locking rod that engages with the movable block. The movable block has a locking groove that engages with the locking rod. The locking rod is inserted into the locking groove, thus forming a locking engagement between the locking rod and the movable block.

8. The miniature movable block mechanism of the injection mold according to claim 6, characterized in that: The other end of the handle has a handle rod portion that protrudes outside the movable block, and the outer peripheral wall of the handle rod portion has a gripping arc surface.

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