A mold locking mechanism for an injection molding machine

Abstract

The utility model discloses a kind of mould locking mechanisms of injection molding machine, it is related to injection molding machine equipment technical field, including workbench and the static mould placed in the center of workbench top surface, further include: setting assembly unit, clamping unit and moving mould on workbench;Assembly unit includes cylinder, rectangular box, rectangular block, internal thread sleeve and group joint screw rod, cylinder is installed on workbench by support frame, rectangular box is fixedly set in cylinder telescopic bottom end, rectangular block is movably placed in rectangular box, moving mould is fixedly set in rectangular block bottom end and located static mould directly above;Clamping unit includes servo motor, screw rod, supporting block, clamping plate and guide rod, workbench top surface center is provided with strip-shaped mounting groove, servo motor is installed on strip-shaped mounting groove.In the utility model, two clamping plates are mutually close to each other, and the surface of static mould and moving mould opposite two sides can be clamped simultaneously, and the equipment is simple and convenient to prepare and low in cost to mould clamping and fixing structure.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine equipment technology, and in particular to an injection molding machine clamping mechanism. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection machines, are the main molding equipment for making various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds. They are divided into vertical, horizontal, and all-electric types. Injection molding machines heat plastics and apply high pressure to the molten plastics, causing them to be injected and fill the mold cavity.

[0003] Publication number CN222115951U discloses a mold clamping mechanism for an injection molding machine, relating to the technical field of injection molding equipment. It includes: a worktable with an adjustment cavity on its inner wall; a motor fixedly connected above a shock-absorbing plate; a rotating shaft fixedly connected to the output end of the motor; a first gear fixedly connected to the outer side of one end of the rotating shaft; two sliding grooves on both sides above the worktable; a lead screw installed in each groove; a second gear fixedly connected to one end of the lead screw passing through the groove; a sliding block sleeved on the outer surface of the lead screw; a limit device on the sliding block; a stationary mold fixedly connected above the worktable; and a moving mold fixedly connected to the output end of a cylinder. By incorporating the lead screw, second gear, sliding block, and limit device, the mold is easily clamped, and both sides of the mold are fixed and limited, ensuring mold stability during molding and improving the yield rate of the molded product.

[0004] While the above-mentioned solutions facilitate the clamping of the mold, the moving mold is difficult to fix and disassemble on the cylinder, and the side clamping components require gear transmission components, which are complex in structure and have high manufacturing costs. Therefore, we propose a mold clamping mechanism for injection molding machines. Utility Model Content

[0005] The main purpose of this utility model is to provide a mold clamping mechanism for injection molding machines. By setting up an assembly unit and a clamping unit, it solves the problems of difficulty in fixing and disassembling the moving mold on the cylinder, and the side clamping component requires gear transmission components, which has a complex structure and high manufacturing cost.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a molding machine clamping mechanism, including a worktable and a stationary mold placed at the center of the top surface of the worktable, and further including: an assembly unit, a clamping unit and a moving mold arranged on the worktable;

[0007] The assembly unit includes a cylinder, a rectangular box, a rectangular block, an internally threaded sleeve, and a connecting screw. The cylinder is mounted on a workbench via a support frame. The rectangular box is fixedly mounted at the telescopic bottom of the cylinder. The rectangular block is movably placed inside the rectangular box. The moving mold is fixedly mounted at the bottom of the rectangular block and located directly above the stationary mold. A first through hole is opened on one side surface of the rectangular box, and a second through hole is opened on the side surface of the rectangular block. The internally threaded sleeve is fixedly mounted on the other side surface of the rectangular box. The connecting screw movably passes through the rectangular box and the rectangular block through the first and second through holes and is assembled on the internally threaded sleeve.

[0008] The clamping unit includes a servo motor, a lead screw, support blocks, clamping plates, and a guide rod. A strip-shaped mounting groove is provided at the center of the top surface of the worktable. The servo motor is mounted on the strip-shaped mounting groove. The lead screw is mounted on the output end of the servo motor. The two support blocks are respectively matched with the two symmetrically arranged positive and negative threads on the lead screw. The two clamping plates are respectively fixedly mounted on the top of the two support blocks and located above the worktable. The guide rod is fixedly mounted on the strip-shaped mounting groove and moves through the two support blocks.

[0009] Preferably, the connecting screw and the cylinder are arranged perpendicular to each other.

[0010] Preferably, the internal threaded sleeve, the first through hole, and the second through hole are located on the same central axis.

[0011] Preferably, the lead screw and the connecting screw are arranged perpendicular to each other.

[0012] Preferably, a control box is installed at the corner of the top surface of the workbench.

[0013] Preferably, a positioning hole is provided at the corner of the top surface of the stationary mold, and a positioning post with a size matching the positioning hole is provided at the corner of the bottom surface of the moving mold.

[0014] Compared with the prior art, the mold clamping mechanism of the injection molding machine of this utility model has the following beneficial effects:

[0015] 1. In this utility model, by setting an assembly unit, when the moving mold is placed directly above the stationary mold, the rectangular block at the top of the moving mold can be inserted into the rectangular box at the bottom of the cylinder extension and retraction. The assembly screw passes through the first through hole and the second through hole and can be rotated and assembled onto the internal threaded sleeve on the side of the rectangular box. The moving mold is fixedly assembled onto the rectangular box along with the rectangular block. The equipment is simple and flexible in disassembling and assembling the moving mold.

[0016] 2. In this utility model, by setting a clamping unit, the operation of the servo motor can control the lead screw to rotate forward and backward on the strip mounting groove. The two support blocks that are threaded to the lead screw can move relative to each other under the force, which can drive the two clamping plates to adjust the distance on the top surface of the worktable. The guide rod fixed on the strip mounting groove can guide the support blocks to slide and translate and help the support blocks maintain the angle. When the two clamping plates come together, they can clamp the opposite two sides of the stationary mold and the moving mold at the same time. The equipment has a simple mold clamping and fixing structure and low manufacturing cost. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a mold clamping mechanism for an injection molding machine according to the present invention;

[0019] Figure 2 This is a top view schematic diagram of the mold clamping mechanism of an injection molding machine according to the present invention;

[0020] Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0021] Figure 4 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point BB;

[0022] Figure 5 This is a side view of the clamping mechanism of an injection molding machine according to the present invention.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Workbench;

[0025] 2. Static model;

[0026] 3. Assembly unit; 301. Cylinder; 302. Rectangular box; 303. Rectangular block; 304. Internal threaded sleeve; 305. Assembly screw;

[0027] 4. Clamping unit; 401. Servo motor; 402. Lead screw; 403. Support block; 404. Clamping plate; 405. Guide rod;

[0028] 5. Moving mold;

[0029] 6. Control box;

[0030] 7. Positioning post. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Example 1

[0035] like Figure 1 , Figure 2 , Figure 4 as well as Figure 5 As shown, an injection molding machine clamping mechanism includes a worktable 1 and a stationary mold 2 placed at the center of the top surface of the worktable 1, and further includes an assembly unit 3, a clamping unit 4 and a moving mold 5 disposed on the worktable 1;

[0036] Assembly unit 3 includes cylinder 301, rectangular box 302, rectangular block 303, internal threaded sleeve 304, and assembly screw 305. Cylinder 301 is mounted on workbench 1 via support frame. Rectangular box 302 is fixedly mounted on the telescopic bottom end of cylinder 301. Rectangular block 303 is movably placed inside rectangular box 302. Moving mold 5 is fixedly mounted on the bottom end of rectangular block 303 and located directly above stationary mold 2. A first through hole is opened on one side surface of rectangular box 302, and a second through hole is opened on the side of rectangular block 303. Internal threaded sleeve 304 is fixedly mounted on the other side surface of rectangular box 302. Assembly screw 305 movably passes through rectangular box 302 and rectangular block 303 through the first and second through holes and is assembled on internal threaded sleeve 304.

[0037] The clamping unit 4 includes a servo motor 401, a lead screw 402, a support block 403, a clamping plate 404, and a guide rod 405. A strip-shaped mounting groove is provided at the center of the top surface of the worktable 1. The servo motor 401 is mounted on the strip-shaped mounting groove. The lead screw 402 is mounted on the output end of the servo motor 401. The two support blocks 403 are respectively matched with the two symmetrically arranged positive and negative threads on the lead screw 402. The two clamping plates 404 are respectively fixedly mounted on the top of the two support blocks 403 and located above the worktable 1. The guide rod 405 is fixedly mounted on the strip-shaped mounting groove and moves through the two support blocks 403.

[0038] Furthermore, the connecting screw 305 and the cylinder 301 are arranged perpendicular to each other.

[0039] Furthermore, the internal threaded sleeve 304, the first through hole, and the second through hole are located on the same central axis.

[0040] Furthermore, a control box 6 is installed at the corner of the top surface of the workbench 1.

[0041] Furthermore, a positioning hole is provided at the corner of the top surface of the stationary mold 2, and a positioning post 7 with a size matching the positioning hole is provided at the corner of the bottom surface of the moving mold 5.

[0042] Assembly unit 3 makes the disassembly and assembly of the moving mold 5 simple and flexible.

[0043] Example 2

[0044] like Figure 1 , Figure 2 , Figure 3 as well as Figure 5 As shown, an injection molding machine clamping mechanism includes a worktable 1 and a stationary mold 2 placed at the center of the top surface of the worktable 1, and further includes an assembly unit 3, a clamping unit 4 and a moving mold 5 disposed on the worktable 1;

[0045] Assembly unit 3 includes cylinder 301, rectangular box 302, rectangular block 303, internal threaded sleeve 304, and assembly screw 305. Cylinder 301 is mounted on workbench 1 via support frame. Rectangular box 302 is fixedly mounted on the telescopic bottom end of cylinder 301. Rectangular block 303 is movably placed inside rectangular box 302. Moving mold 5 is fixedly mounted on the bottom end of rectangular block 303 and located directly above stationary mold 2. A first through hole is opened on one side surface of rectangular box 302, and a second through hole is opened on the side of rectangular block 303. Internal threaded sleeve 304 is fixedly mounted on the other side surface of rectangular box 302. Assembly screw 305 movably passes through rectangular box 302 and rectangular block 303 through the first and second through holes and is assembled on internal threaded sleeve 304.

[0046] The clamping unit 4 includes a servo motor 401, a lead screw 402, a support block 403, a clamping plate 404, and a guide rod 405. A strip-shaped mounting groove is provided at the center of the top surface of the worktable 1. The servo motor 401 is mounted on the strip-shaped mounting groove. The lead screw 402 is mounted on the output end of the servo motor 401. The two support blocks 403 are respectively matched with the two symmetrically arranged positive and negative threads on the lead screw 402. The two clamping plates 404 are respectively fixedly mounted on the top of the two support blocks 403 and located above the worktable 1. The guide rod 405 is fixedly mounted on the strip-shaped mounting groove and moves through the two support blocks 403.

[0047] Furthermore, the lead screw 402 and the connecting screw 305 are arranged perpendicularly to each other.

[0048] Furthermore, a control box 6 is installed at the corner of the top surface of the workbench 1.

[0049] Furthermore, a positioning hole is provided at the corner of the top surface of the stationary mold 2, and a positioning post 7 with a size matching the positioning hole is provided at the corner of the bottom surface of the moving mold 5.

[0050] The clamping unit 4 makes the equipment's mold clamping and fixing structure simple and the manufacturing cost low.

[0051] The working principle of this utility model is as follows:

[0052] When the moving mold 5 is placed directly above the stationary mold 2, the rectangular block 303 at the top of the moving mold 5 is inserted into the rectangular box 302 at the bottom of the cylinder 301. The assembly screw 305 passes through the first and second through holes, moving through the rectangular box 302 and the rectangular block 303, and is then rotated and assembled onto the internal threaded sleeve 304 on the side of the rectangular box 302. The moving mold 5 is fixedly assembled onto the rectangular box 302 along with the rectangular block 303. The servo motor 401 operates to control the lead screw 402 to rotate forward and backward on the strip mounting groove. The two support blocks 403, which are threaded to the lead screw 402, move relative to each other under the force, causing the two clamping plates 404 to adjust the distance on the top surface of the worktable 1. The guide rod 405, which is fixedly set on the strip mounting groove, guides the support blocks 403 to slide and translate and helps the support blocks 403 maintain the angle. When the two clamping plates 404 come together, they can simultaneously clamp the opposite side surfaces of the stationary mold 2 and the moving mold 5.

[0053] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mold clamping mechanism for an injection molding machine, comprising a worktable (1) and a stationary mold (2) placed at the center of the top surface of the worktable (1), characterized in that, Also includes: Assembly unit (3), clamping unit (4) and moving mold (5) are set on the workbench (1); The assembly unit (3) includes a cylinder (301), a rectangular box (302), a rectangular block (303), an internal threaded sleeve (304), and a connecting screw (305). The cylinder (301) is mounted on the workbench (1) via a support frame. The rectangular box (302) is fixedly mounted on the telescopic bottom end of the cylinder (301). The rectangular block (303) is movably placed inside the rectangular box (302). The moving mold (5) is fixedly mounted on the bottom end of the rectangular block (303) and located directly above the stationary mold (2). A first through hole is opened on one side surface of the rectangular box (302), and a second through hole is opened on the side of the rectangular block (303). The internal threaded sleeve (304) is fixedly mounted on the other side surface of the rectangular box (302). The connecting screw (305) movably passes through the rectangular box (302) and the rectangular block (303) through the first and second through holes and is assembled on the internal threaded sleeve (304). The clamping unit (4) includes a servo motor (401), a lead screw (402), a support block (403), a clamping plate (404), and a guide rod (405). A strip-shaped mounting groove is provided at the center of the top surface of the worktable (1). The servo motor (401) is mounted on the strip-shaped mounting groove. The lead screw (402) is mounted on the output end of the servo motor (401). The two support blocks (403) are respectively matched with the two symmetrically arranged positive and negative threads on the lead screw (402). The two clamping plates (404) are respectively fixedly mounted on the top of the two support blocks (403) and located above the worktable (1). The guide rod (405) is fixedly mounted on the strip-shaped mounting groove and moves through the two support blocks (403).

2. The injection molding machine clamping mechanism according to claim 1, characterized in that: The connecting screw (305) and the cylinder (301) are arranged perpendicular to each other.

3. The injection molding machine clamping mechanism according to claim 1, characterized in that: The internal threaded sleeve (304), the first through hole, and the second through hole are located on the same central axis.

4. The injection molding machine clamping mechanism according to claim 1, characterized in that: The lead screw (402) and the connecting screw (305) are arranged perpendicularly to each other.

5. The injection molding machine clamping mechanism according to claim 1, characterized in that: A control box (6) is installed at the corner of the top surface of the workbench (1).

6. The injection molding machine clamping mechanism according to claim 1, characterized in that: The stationary mold (2) has a positioning hole at the top corner, and the moving mold (5) has a positioning post (7) at the bottom corner with a size matching the positioning hole.

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