Pull rod clamping device of injection molding machine

Abstract

The utility model relates to a pull rod clamping device of an injection molding machine, which is arranged at a right-angle opening at the front upper end corner of a movable template of the injection molding machine, the clamping device comprises a right-angle seat fixed at a right-angle notch, a pull rod is connected with a static template of the injection molding machine through a space formed by the right-angle seat and the right-angle notch, and a mounting plate is fixed on the end surface of the right-angle seat. A left clamping jaw and a right clamping jaw are arranged on the mounting plate, the left clamping jaw and the right clamping jaw are bilaterally symmetrically arranged relative to a central shaft of the pull rod, the pull rod is clamped when the left clamping jaw and the right clamping jaw move close to each other, the pull rod is loosened when the left clamping jaw and the right clamping jaw move away from each other, and a pressing plate for fixing the left clamping jaw, the right clamping jaw and the mounting plate after the pull rod is clamped is arranged between the left clamping jaw and the right clamping jaw. When the left clamping jaw and the right clamping jaw move close to each other or far away from each other, the pull rod is clamped or loosened, and the left clamping jaw and the right clamping jaw are fixed with the mounting plate by the pressing plate after the pull rod is clamped, so that the pull rod is ensured to be in a stable state when a mold is mounted and replaced, and the mold is convenient to replace and mount.

Description

Technical Field

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

[0002] In the structure of an injection molding machine, tie rods are usually installed at the four corners of the machine, connecting the moving and stationary mold plates, and serving as guides and supports to ensure the stability and accuracy of the mold during the opening and closing process.

[0003] However, in actual use, if it is necessary to install or replace the mold, the tie rod between the moving platen and the stationary platen on the operating end side will interfere with the mold, making it inconvenient to operate. Therefore, it is necessary to first pull the tie rod out from between the moving platen and the stationary platen to the rear side of the moving platen. This will create a relatively open operating space between the moving platen and the stationary platen, making it convenient for the installation and replacement of the mold.

[0004] However, this simple method of pulling the lever to the back of the moving template and then changing the mold is prone to shaking and lacks stability. This still has a certain impact on material handling and personnel movement during the mold installation and replacement process. Utility Model Content

[0005] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the prior art, this utility model provides an injection molding machine tie rod clamping device to ensure that the tie rod remains stationary and stable after being pulled out, which facilitates the installation and replacement of injection molding machine molds.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a clamping device for a pull rod of an injection molding machine, which is provided at the right-angle opening at the upper corner of the front side of the moving template of the injection molding machine. The clamping device includes a right-angle seat fixed to the right-angle notch. The pull rod is connected to the stationary template of the injection molding machine through the space formed by the right-angle seat and the right-angle notch. A mounting plate is fixed to the end face of the right-angle seat. The mounting plate is provided with a left clamp and a right clamp. The left clamp and the right clamp are symmetrically arranged with respect to the central axis of the pull rod. When the left clamp and the right clamp move close to each other, they clamp the pull rod; when they move far apart, they release the pull rod. A pressure plate is provided between the left clamp and the right clamp to fix the left clamp and the right clamp to the mounting plate after the pull rod is clamped.

[0007] Furthermore, both the inner surfaces of the left and right grippers have semi-circular arc surfaces that mate with the outer periphery of the pull rod.

[0008] Specifically, the pressure plate includes an upper pressure plate and a lower pressure plate, which are symmetrically arranged vertically relative to the central axis of the pull rod. An adapter plate is fixed on the mounting plate. Both the left and right grippers have oblong holes. The upper pressure plate is provided with upper fastening bolts that fix the upper parts of the left and right grippers to the adapter plate through the oblong holes. The lower pressure plate is provided with lower fastening bolts that fix the lower parts of the left and right grippers to the adapter plate through the oblong holes.

[0009] Furthermore, the right gripper is provided with an adjustment plate on its outer side, with tension screws at its upper and lower ends, and a sleeve inside the right gripper. The tension screws pass through the sleeve and are threadedly connected to the left gripper. A clamping bolt with its end pressing against the outer side of the right gripper is threadedly connected in the middle of the adjustment plate.

[0010] Furthermore, a support block is fixed on the lower pressure plate to support the pull rod when it is pressed.

[0011] The beneficial effects of this utility model are: when the left and right grippers move close together, they clamp the pull rod; when they move far apart, they release the pull rod. After the pull rod is clamped, the pressure plate fixes the left and right grippers to the mounting plate, thereby ensuring that the pull rod is in a static and stable state when installing or changing the mold, which facilitates the replacement and installation of the mold and improves the safety of operation. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of this utility model after the upper pressure plate is removed.

[0015] Figure 3 This is a schematic diagram of the installation structure of this utility model.

[0016] In the diagram: 1. Right-angle seat, 2. Mounting plate, 3. Left clamp, 4. Right clamp, 5-1. Upper pressure plate, 5-2. Lower pressure plate, 6. Adapter plate, 7. Upper fastening bolt, 8. Lower fastening bolt, 9. Adjusting plate, 10. Tightening screw, 11. Sleeve, 12. Clamping bolt, 13. Support block, 14. Moving template, 15. Tie rod, 16. Static template. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0018] like Figures 1-3The diagram shows a clamping device for a pull rod of an injection molding machine. The clamping device is located at the right-angle opening at the upper corner of the front side of the moving platen 14 of the injection molding machine. It includes a right-angle seat 1 fixed at the right-angle notch of the moving platen 14. The pull rod 15 is connected to the stationary platen 16 of the injection molding machine through the space formed by the right-angle seat 1 and the right-angle notch.

[0019] The right-angle seat 1 has a mounting plate 2 fixed to its end face, and an adapter plate 6 is fixed on the mounting plate 2. There are two adapter plates 6, which are symmetrically arranged vertically relative to the central axis of the pull rod 15. The inner side of the adapter plate has a semi-circular arc surface. The adapter plate is provided with a left clamp 3 and a right clamp 4. The left clamp 3 and the right clamp 4 are symmetrically arranged horizontally relative to the central axis of the pull rod 15. The inner side of the left clamp 3 and the inner side of the right clamp 4 both have a semi-circular arc surface that cooperates with the outer periphery of the pull rod 15.

[0020] A pressure plate is provided between the left clamp 3 and the right clamp 4 to fix the left clamp 3 and the right clamp 4 to the mounting plate 2 after the pull rod 15 is clamped. The pressure plate includes an upper pressure plate 5-1 and a lower pressure plate 5-2. The upper pressure plate 5-1 and the lower pressure plate 5-2 are symmetrically arranged with respect to the central axis of the pull rod 15. The left clamp 3 and the right clamp 4 are both provided with waist-shaped holes. The upper pressure plate 5-1 is provided with upper fastening bolts 7 that fix the upper part of the left clamp 3 and the upper part of the right clamp 4 to the adapter plate 6 through the waist-shaped holes. The lower pressure plate 5-2 is provided with lower fastening bolts 8 that fix the lower part of the left clamp 3 and the lower part of the right clamp 4 to the adapter plate 6 through the waist-shaped holes. The lowest pressure plate 5-2 is fixed with a support block 13 that supports the pull rod 15 when it is clamped to ensure the stability of the pull rod 15 when clamped.

[0021] An adjusting plate 9 is provided on the outer side of the right gripper 4. The upper and lower ends of the adjusting plate 9 are respectively provided with tensioning screws 10. The right gripper 4 is provided with a sleeve 11. The tensioning screw 10 passes through the sleeve 11 and is threadedly connected to the left gripper 3. The adjusting plate 9 is threadedly connected in the middle with a clamping bolt 12 whose end is pressed against the outer side of the right gripper 4.

[0022] When the injection molding machine is working normally, the pull rod 15 is installed between the moving platen 14 and the stationary platen 16, and the clamping device is in the loose state. When it is necessary to change the mold, the pull rod 15 is disconnected from the stationary platen 16, and the end of the pull rod 15 is pulled into the space formed by the right angle seat 1 and the right angle notch of the moving platen 14. At this time, the upper fastening bolt 7 and the lower fastening bolt 8 are in the loose state. Rotate the clamping bolt 12 to push the semi-circular surface of the right jaw 4 to clamp on the outer circumference of the right side of the pull rod 15. Then rotate the upper fastening bolt 7 and the lower fastening bolt 8 to pull the left jaw 3 to clamp on the outer circumference of the left side of the pull rod 15, thereby clamping the pull rod 15. Finally, the left jaw 3 and the right jaw 4 are pressed together by the upper pressure plate 5-1 and the lower pressure plate 5-2. In this way, the mold can be installed or replaced through the space between the moving platen 14 and the stationary platen 16. The tightened pull rod 15 is in a stable state and will not shake, which is conducive to the smooth progress of the mold installation operation. After the mold is installed or replaced, loosen the upper pressure plate 5-1 and the lower pressure plate 5-2, and rotate the clamping bolt 12, the upper fastening bolt 7 and the lower fastening bolt 8 in the opposite direction so that the left clamp 3 and the right clamp 4 are released from the clamping state of the pull rod 15. Then connect the end of the pull rod 15 to the stationary template 16.

[0023] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A tie rod clamping device for an injection molding machine, located at a right-angle opening at the upper corner of the front side of the moving platen (14) of the injection molding machine, characterized in that: The clamping device includes a right-angle seat (1) fixed in the right-angle opening. The pull rod (15) is connected to the stationary template (16) of the injection molding machine through the space formed by the right-angle seat (1) and the right-angle opening. The end face of the right-angle seat (1) is fixed with a mounting plate (2). The mounting plate (2) is provided with a left clamping jaw (3) and a right clamping jaw (4). The left clamping jaw (3) and the right clamping jaw (4) are symmetrically arranged with respect to the central axis of the pull rod (15). When the left clamping jaw (3) and the right clamping jaw (4) move close to each other, they clamp the pull rod (15) and when they move far apart, they release the pull rod (15). A pressure plate is provided between the left clamping jaw (3) and the right clamping jaw (4) to fix the left clamping jaw (3) and the right clamping jaw (4) to the mounting plate (2) after the pull rod (15) is clamped.

2. The injection molding machine tie rod clamping device as described in claim 1, characterized in that: The inner sides of the left gripper (3) and the right gripper (4) both have semi-circular arc surfaces that cooperate with the outer periphery of the pull rod (15).

3. The injection molding machine tie rod clamping device as described in claim 2, characterized in that: The pressure plate includes an upper pressure plate (5-1) and a lower pressure plate (5-2). The upper pressure plate (5-1) and the lower pressure plate (5-2) are symmetrically arranged above and below the central axis of the pull rod (15). An adapter plate (6) is fixed on the mounting plate (2). The left jaw (3) and the right jaw (4) are both provided with waist-shaped holes. The upper pressure plate (5-1) is provided with upper fastening bolts (7) that fix the upper part of the left jaw (3) and the upper part of the right jaw (4) to the adapter plate (6) through the waist-shaped holes. The lower pressure plate (5-2) is provided with lower fastening bolts (8) that fix the lower part of the left jaw (3) and the lower part of the right jaw (4) to the adapter plate (6) through the waist-shaped holes.

4. The injection molding machine tie rod clamping device as described in claim 3, characterized in that: An adjusting plate (9) is provided on the outside of the right jaw (4). The upper and lower ends of the adjusting plate (9) are respectively provided with a tightening screw (10). A sleeve (11) is provided inside the right jaw (4). The tightening screw (10) passes through the sleeve (11) and is threadedly connected to the left jaw (3). A clamping bolt (12) with its end pressing against the outer side of the right jaw (4) is threadedly connected in the middle of the adjusting plate (9).

5. The injection molding machine tie rod clamping device as described in claim 3, characterized in that: The lower pressure plate (5-2) is fixed with a support block (13) that supports the pull rod (15) when it is pressed.

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