Detachable and replaceable injection mold for workpiece production

Abstract

The utility model discloses a detachable and replaceable injection mold for workpiece production, which relates to the field of workpiece production and comprises a fixed base, a support rod and a mold top cover, a forming mold shell is arranged above the fixed base, and an ejection component is arranged on the inner side of the fixed base. The ejection assembly comprises an ejection plate, a telescopic rod, a hollow fixing column, a rotating lead screw, a driving motor, a rotating rod, a chain wheel and a transmission chain. According to the detachable and replaceable injection mold for workpiece production, the ejection assembly, the clamping piece and the mounting assembly are arranged, in the using process of the injection mold during workpiece production, the formed mold is ejected out, and the demolding efficiency of the injection mold is greatly improved; and meanwhile, operation is easy, a worker can disassemble, assemble and replace the injection mold conveniently according to the actual situation, and the worker can use the injection mold conveniently.

Description

Technical Field

[0001] The utility model relates to the field of workpiece production, in particular to a detachable and replaceable injection mold for workpiece production. Background Art

[0002] Workpiece, a product component in the manufacturing process. During the workpiece production process, workers may use injection molds to assist production. Injection molds are plastic molds used for injection molding. It is a tool that heats the plastic to a molten state, then injects the molten plastic into the mold through an injection molding machine, and then molds it into a product of the desired shape and size after cooling.

[0003] However, the current injection molds still have some shortcomings. For example, the injection mold that is easy to demold with application number 202220222869.0 has not yet fully considered the disassembly, assembly and replacement structure of the injection mold. During the use of the injection mold in workpiece production, if the injection mold is not fully considered in terms of the disassembly, assembly and replacement structure, then when the injection mold is damaged in the future, it is inconvenient for the staff to disassemble, assemble and replace the injection mold according to the actual situation, which hinders the staff's maintenance of the injection mold and is not convenient for the staff to use the injection mold for a long time.

[0004] Therefore, it is urgent to improve this shortcoming. The utility model studies and improves the existing structure and shortcomings, and provides a detachable and replaceable injection mold for workpiece production. Utility Model Content

[0005] The purpose of the utility model is to provide a detachable and replaceable injection mold for workpiece production to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a detachable and replaceable injection mold for workpiece production, comprising a fixed base, a support rod and a mold top cover, a molding mold shell is arranged above the fixed base, and an ejection assembly is arranged on the inner side of the fixed base, and the ejection assembly includes an ejection plate, a telescopic rod, a hollow fixed column, a rotating screw, a driving motor, a rotating rod, a sprocket and a transmission chain, the support rod is fixedly connected to the four corners above the fixed base, and the top end of the support rod is fixedly connected to a fixed top plate, and a lifting member is arranged at the center of the fixed top plate, and the bottom of the lifting member is fixedly connected to a connecting plate, the mold top cover is arranged below the connecting plate, and an installation assembly is arranged on the inner side of the connecting plate, and the installation assembly includes an installation screw, a fixing plate, a limiting rod, a protruding movable block, a fixing rod and a reset spring.

[0007] Furthermore, the number of the molding mold shells is two, the two molding mold shells are symmetrically arranged front and back, and the top of the fixed base is fixedly connected with a sealing clamping strip, and the bottom of the molding mold shell is tightly clamped and connected with the sealing clamping strip.

[0008] Furthermore, fixed uprights are provided on both sides of the forming mold shell, and the bottom ends of the fixed uprights are welded to the surface of the fixed base, and one side of the fixed uprights is clamped and connected with a clamping piece, and the fixed uprights are clamped and connected to the forming mold shell through the clamping piece, and at the same time, one side of the top of the clamping piece is fixedly connected to the top of the fixed uprights by bolts.

[0009] Furthermore, the ejector plate is arranged on the upper surface of the fixed base, and telescopic rods are welded on both sides of the bottom of the ejector plate, and a hollow fixed column is arranged on the outside of the telescopic rod, and the outer wall of the hollow fixed column is fixedly connected to the fixed base.

[0010] Furthermore, the inner side of the telescopic rod is rotatably connected to a rotating screw, and a driving motor is provided on one side of the rotating screw, and the output shaft of the driving motor is fixedly connected to the rotating rod through a coupling, and the outer walls of the bottom ends of the rotating screw and the rotating rod are fixedly connected to sprockets, and the outer side of the sprocket is rotatably connected to a transmission chain.

[0011] Furthermore, the outer wall of the mounting screw is provided with threads, and the connecting plate is fixedly connected to the mold top cover through the mounting screw, and the inner bottom center of the mounting screw is fixedly connected with a fixing plate, and the center of the fixing plate passes through and is fixedly connected with a limiting rod.

[0012] Furthermore, protruding movable blocks are arranged outside both ends of the limiting rod, and fixing rods are connected through the upper and lower sides of the protruding movable blocks, and one end of the fixing rod is welded to the fixing plate, and a return spring is arranged outside the fixing rod.

[0013] Furthermore, snap blocks are welded on both sides of the connecting plate, and sliding clamps are snap-fitted and slidably connected on both sides of the upper side of the mold top cover, and one end of the sliding clamp is snap-fitted and connected to the snap blocks, and one side of the sliding clamp is fixedly connected to the mold top cover by bolts.

[0014] The utility model provides a detachable and replaceable injection mold for workpiece production, which has the following beneficial effects:

[0015] 1. The utility model is provided with an ejector assembly. When the injection mold is used in the production of workpieces, the ejector plate is raised and lowered, so that the mold after molding is ejected by the ejector plate, which greatly improves the demoulding efficiency of the injection mold and avoids the influence of subsequent use of the injection mold due to unsuccessful demoulding of the injection mold. The structure is simple and it is convenient for the staff to use the injection mold.

[0016] 2. The utility model is provided with a clamping piece and an installation assembly. When the injection mold is used in the production of workpieces, the clamping piece is used to facilitate the staff to quickly replace the molding mold shell later. At the same time, the connecting plate and the mold top cover are fixedly connected by the installation screw, and the protruding movable block is used for stable limiting, which is convenient for the subsequent staff to replace the top cover according to the mold specifications. The operation is simple, and it is convenient for the staff to disassemble, assemble and replace the injection mold according to the actual situation, and it is convenient for the staff to maintain the injection mold and use the injection mold for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the appearance of a detachable and replaceable injection mold for workpiece production according to the utility model;

[0018] Figure 2 It is a schematic diagram of the disassembled three-dimensional structure of a molding mold shell-clamping member of a detachable and replaceable injection mold for workpiece production of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of a fixed base-ejection assembly of a detachable and replaceable injection mold for workpiece production according to the utility model;

[0020] Figure 4 It is a cross-sectional schematic diagram of the three-dimensional structure of a connecting plate-sliding clamp of a detachable and replaceable injection mold for workpiece production of the utility model;

[0021] Figure 5 The utility model is a schematic diagram of the three-dimensional structure of the installation component of the injection mold for workpiece production that can be disassembled and replaced.

[0022] In the figure: 1. fixed base; 2. molding mold shell; 3. sealing snap-fit ​​strip; 4. fixed vertical rod; 5. snap-fit ​​piece; 6. ejector assembly; 601. ejector plate; 602. telescopic rod; 603. hollow fixed column; 604. rotating screw; 605. driving motor; 606. rotating rod; 607. sprocket; 608. transmission chain; 7. support rod; 8. fixed top plate; 9. lifting member; 10. connecting plate; 11. mold top cover; 12. installation assembly; 1201. installation screw; 1202. fixed plate; 1203. limit rod; 1204. protruding movable block; 1205. fixed rod; 1206. reset spring; 13. snap-fit ​​block; 14. sliding clamp. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0024] like Figure 1-Figure 3As shown, a detachable and replaceable injection mold for workpiece production includes a fixed base 1, a support rod 7 and a mold top cover 11. A molding mold shell 2 is arranged above the fixed base 1. The number of molding mold shells 2 is two, and the two molding mold shells 2 are symmetrically arranged front and back, and a sealing clamping strip 3 is fixedly connected to the top of the fixed base 1, and the bottom of the molding mold shell 2 is tightly clamped and connected to the sealing clamping strip 3, so that the connection between the structures is tighter to avoid leakage during subsequent injection molding. Fixed vertical rods 4 are arranged on both sides of the molding mold shell 2, and the bottom end of the fixed vertical rod 4 is welded to the surface of the fixed base 1, and one side of the fixed vertical rod 4 is clamped and connected with a clamping piece 5, and the fixed vertical rod 4 is clamped and connected to the molding mold shell 2 through the clamping piece 5, and at the same time, one side of the top of the clamping piece 5 is fixedly connected to the top of the fixed vertical rod 4 by bolts, so that the staff can quickly replace the molding mold shell 2 later, and an ejection assembly 6 is arranged on the inner side of the fixed base 1, and the ejection assembly 6 includes an ejector plate 601, a telescopic rod 602, a hollow fixed column 603, a rotating screw 604, a driving motor 605, a rotating rod 606, a sprocket 607 and a transmission chain 608, the ejector plate 601 is arranged on the upper surface of the fixed base 1, and the telescopic rod 602 is welded on both sides of the bottom of the ejector plate 601, and the outer side of the telescopic rod 602 is provided with a hollow fixed column 603, and the outer wall of the hollow fixed column 603 is fixedly connected to the fixed base 1, and the inner side of the telescopic rod 602 is rotated. It is dynamically connected with a rotating screw 604, and a driving motor 605 is arranged on one side of the rotating screw 604, and the output shaft of the driving motor 605 is fixedly connected with a rotating rod 606 through a coupling, and the outer walls of the bottom ends of the rotating screw 604 and the rotating rod 606 are fixedly connected with a sprocket 607, and the outer side of the sprocket 607 is rotatably connected with a transmission chain 608 to eject the mold after molding, which greatly improves the demoulding efficiency of the injection mold and facilitates the staff to use the injection mold.

[0025] like Figure 1 , Figure 4 and Figure 5As shown, the support rod 7 is fixedly connected to the four corners above the fixed base 1, and the top of the support rod 7 is fixedly connected to the fixed top plate 8, and the center of the fixed top plate 8 is provided with a lifting member 9, and the bottom of the lifting member 9 is fixedly connected to the connecting plate 10, the mold top cover 11 is arranged below the connecting plate 10, and the inner side of the connecting plate 10 is provided with a mounting assembly 12, and the mounting assembly 12 includes a mounting screw 1201, a fixed plate 1202, a limiting rod 1203, a protruding movable block 1204, a fixed rod 1205 and a reset spring 1206, the outer wall of the mounting screw 1201 is provided with a thread, and the connecting plate 10 is fixedly connected to the mold top cover 11 through the mounting screw 1201, and the inner bottom center of the mounting screw 1201 is fixedly connected to the fixed plate 1202, and The center of the fixed plate 1202 passes through a limit rod 1203 that is fixedly connected thereto. Protruding movable blocks 1204 are arranged on the outer sides of both ends of the limit rod 1203. The upper and lower sides of the protruding movable blocks 1204 pass through fixed rods 1205 that are connected thereto. One end of the fixed rod 1205 is welded to the fixed plate 1202. A return spring 1206 is arranged on the outer side of the fixed rod 1205 to facilitate the staff to disassemble, assemble and replace the injection mold according to actual conditions, and to facilitate the staff to maintain the injection mold. Engaging blocks 13 are welded on both sides of the connecting plate 10. Sliding clamps 14 are slidably connected to the upper sides of the mold top cover 11. One end of the sliding clamp 14 is engaged with the engaging block 13. One side of the sliding clamp 14 is fixedly connected to the mold top cover 11 by bolts.

[0026] In summary, the detachable and replaceable workpiece production injection mold is based on Figure 1-Figure 5According to the structure shown in , in the process of using the injection mold during workpiece production, first, after the workpiece mold is formed, the staff can use the ejector assembly 6 to eject the molding mold, use the driving motor 605 to drive the rotating rod 606 to rotate, and use the sprocket 607 and the transmission chain 608 to make the rotating screws 604 arranged on both sides of the rotating rod 606 rotate synchronously, so that the telescopic rod 602 rotatably connected to the outer side of the rotating screw 604 gradually extends out from the hollow fixed column 603, and then the ejector plate 601 is lifted and lowered, so that the molding mold is ejected. In addition, the staff can replace the injection mold according to actual conditions, use the clamping member 5 to clamp the fixed vertical rod 4 with the molding mold shell 2, and use bolts to fix the top of the clamping member 5 to the top of the fixed vertical rod 4 , thereby completing the replacement of the molding mold shell 2. In addition, the staff can use the mounting assembly 12 to replace the mold top cover 11, and use the mounting screw 1201 to rotate to fix the connecting plate 10 and the mold top cover 11. As the rotation of the mounting screw 1201 is completed, the protruding movable block 1204 is gradually ejected under the elastic force of the reset spring 1206, thereby limiting the engagement with the mold top cover 11. Finally, the staff can move the sliding card 14 so that one end of the sliding card 14 is engaged with the engaging blocks 13 welded on both sides of the connecting plate 10, and use bolts to fix one side of the sliding card 14 to the mold top cover 11, thereby completing the replacement of the mold top cover 11, making the overall structure more stable and reliable, and facilitating the long-term use of the injection mold by the staff.

[0027] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A detachable and replaceable injection mold for workpiece production, comprising a fixed base (1), a support rod (7) and a mold top cover (11), characterized in that: A molding die shell (2) is arranged above the fixed base (1), and an ejection assembly (6) is arranged inside the fixed base (1), and the ejection assembly (6) comprises an ejection plate (601), a telescopic rod (602), a hollow fixed column (603), a rotating screw (604), a driving motor (605), a rotating rod (606), a sprocket (607) and a transmission chain (608), the support rod (7) is fixedly connected to the four corners above the fixed base (1), and the top of the support rod (7) is fixedly connected to a fixed A fixed top plate (8), and a lifting member (9) is arranged at the center of the fixed top plate (8), and a connecting plate (10) is fixedly connected to the bottom of the lifting member (9), the mold top cover (11) is arranged below the connecting plate (10), and a mounting assembly (12) is arranged on the inner side of the connecting plate (10), and the mounting assembly (12) includes a mounting screw (1201), a fixed plate (1202), a limiting rod (1203), a protruding movable block (1204), a fixed rod (1205) and a reset spring (1206).

2. A detachable and replaceable injection mold for workpiece production according to claim 1, characterized in that: The number of the molding mold shells (2) is two, and the two molding mold shells (2) are symmetrically arranged front and back, and the top of the fixed base (1) is fixedly connected with a sealing snap-fit ​​strip (3), and the bottom of the molding mold shell (2) is tightly snap-fitted with the sealing snap-fit ​​strip (3).

3. A detachable and replaceable injection mold for workpiece production according to claim 1, characterized in that: Fixed vertical rods (4) are arranged on both sides of the molding mold shell (2), and the bottom ends of the fixed vertical rods (4) are welded to the surface of the fixed base (1), and one side of the fixed vertical rods (4) is snap-connected with a snap-fitting piece (5), and the fixed vertical rods (4) are snap-connected with the molding mold shell (2) through the snap-fitting piece (5), and at the same time, one side of the top of the snap-fitting piece (5) is fixedly connected to the top of the fixed vertical rod (4) through bolts.

4. A detachable and replaceable injection mold for workpiece production according to claim 1, characterized in that: The ejection plate (601) is arranged on the upper surface of the fixed base (1), and telescopic rods (602) are welded on both sides of the bottom of the ejection plate (601), and a hollow fixed column (603) is arranged on the outer side of the telescopic rod (602), and the outer wall of the hollow fixed column (603) is fixedly connected to the fixed base (1).

5. The detachable and replaceable injection mold for workpiece production according to claim 1, characterized in that: The inner side of the telescopic rod (602) is rotatably connected to a rotating screw rod (604), and a driving motor (605) is provided on one side of the rotating screw rod (604), and the output shaft of the driving motor (605) is fixedly connected to a rotating rod (606) via a coupling, and the outer walls of the bottom ends of the rotating screw rod (604) and the rotating rod (606) are fixedly connected to a sprocket wheel (607), and the outer side of the sprocket wheel (607) is rotatably connected to a transmission chain (608).

6. A detachable and replaceable injection mold for workpiece production according to claim 1, characterized in that: The outer wall of the mounting screw (1201) is provided with threads, and the connecting plate (10) is fixedly connected to the mold top cover (11) through the mounting screw (1201), and the center of the inner bottom of the mounting screw (1201) is fixedly connected to a fixing plate (1202), and the center of the fixing plate (1202) passes through and is fixedly connected to a limiting rod (1203).

7. A detachable and replaceable injection mold for workpiece production according to claim 1, characterized in that: Protruding movable blocks (1204) are arranged on the outer sides of both ends of the limiting rod (1203), and fixed rods (1205) are connected through the upper and lower sides of the protruding movable blocks (1204), and one end of the fixed rod (1205) is welded to the fixed plate (1202), and a return spring (1206) is arranged on the outer side of the fixed rod (1205).

8. The detachable and replaceable injection mold for workpiece production according to claim 1, characterized in that: The two sides of the connecting plate (10) are welded with snap-fit ​​blocks (13), and the two sides above the mold top cover (11) are snap-fitted and slidably connected with sliding clamps (14), and one end of the sliding clamp (14) is snap-fitted and connected to the snap-fit ​​blocks (13), and one side of the sliding clamp (14) is fixedly connected to the mold top cover (11) by bolts.

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