A formwork frame to prevent top plate slippage

By introducing an anti-slip mechanism into the mold frame and utilizing the cooperation of the limit push rod and the clamping plate, the problem of top plate slippage is solved, the top plate is stably clamped, and the safety and stability of the mold frame are improved.

CN224576042UActive Publication Date: 2026-07-31KUNSHAN ROBOT MOULD TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN ROBOT MOULD TECH CO LTD
Filing Date
2025-07-29
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

When the existing mold frame is in use, the connection between the top plate and the injection molding machine is prone to loosening, which can cause the top plate to slip off, posing a safety hazard.

Method used

An anti-slip mechanism was designed, including a fixed frame, a limiting push rod, a clamping plate, an inclined locking groove, a side block, a push plate, an inclined locking block, a pull rod, and a pull ring. Through the cooperation of the limiting push rod and the clamping plate, and the interlocking of the inclined locking groove and the locking block, the top plate is stably clamped to prevent slippage.

Benefits of technology

It effectively prevents the top plate from slipping during use, improves the safety and stability of the mold frame, and avoids the problem of top plate slippage caused by loose fixing bolts.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224576042U_ABST
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Abstract

This utility model relates to the field of injection molding machine mold frame technology, and discloses a mold frame for preventing top plate slippage. It includes an injection molding machine body, an injection platform on the upper surface of the injection molding machine body, a lower mold frame on the upper surface of the injection platform, a lower pressure plate above the injection molding machine body, a top plate body on the lower surface of the lower pressure plate, an upper mold frame fixedly connected to the lower surface of the top plate body, an anti-slip mechanism between the lower pressure plate and the top plate body to prevent the lower pressure plate from slipping, a fixed frame fixedly connected to the lower surface of the lower pressure plate around the top plate body, and a limiting push rod inserted through the fixed frame. This mold frame for preventing top plate slippage uses a limiting push rod and a clamping plate with inclined locking grooves on both sides inserted into the fixed frame fixedly connected to the bottom of the lower pressure plate. The inclined locking grooves engage with inclined locking blocks provided in the side blocks of the fixed frame, thereby clamping and limiting the top plate body at the bottom of the lower pressure plate.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding machine mold frame technology, specifically a mold frame that prevents the top plate from slipping. Background Technology

[0002] The mold frame is the supporting skeleton of the mold, used to assemble and fix the various parts of the mold so that it can be installed on a die-casting machine or injection molding machine.

[0003] The aforementioned device lacks a structure to prevent slippage between the mold frame top plate and the injection molding machine. As a result, most existing mold frames use bolts and clamps to connect the injection molding machine to the top plate of the upper mold frame. Although this provides a good connection, the bolts and clamps are prone to loosening after prolonged use. If this loosening is not addressed for an extended period, the mold frame is likely to slip during production. Based on the shortcomings of existing technology, this utility model designs a mold frame that prevents the top plate from slipping. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a mold frame that prevents the top plate from slipping, which has the advantage of preventing slippage when the top plate of the mold frame is connected to the injection molding machine.

[0005] This utility model provides the following technical solution: a mold frame for preventing top plate slippage, comprising an injection molding machine body, an injection table on the upper surface of the injection molding machine body, a lower mold frame on the upper surface of the injection table, a lower pressure plate above the injection molding machine body, a top plate body on the lower surface of the lower pressure plate, an upper mold frame fixedly connected to the lower surface of the top plate body, and an anti-slip mechanism between the lower pressure plate and the top plate body to prevent the lower pressure plate from slipping off;

[0006] An anti-slip mechanism is provided, comprising a fixed frame, a limiting push rod, a clamping plate, a beveled locking groove, a side block, a push plate, a beveled locking block, a pull rod, a pull ring, and a spring. The fixed frame is fixedly connected to the lower surface of the pressure plate surrounding the main body of the top plate. The limiting push rod is inserted through the fixed frame. The clamping plate is fixedly connected to the inner end of the limiting push rod. The beveled locking groove is formed on both sides of the limiting push rod. The side block is fixedly connected to both sides of the fixed frame. The beveled locking block is slidably inserted through the fixed frame and the side block, and the beveled locking block is movably engaged with the beveled locking groove. The push plate is fixedly connected to the outer end of the beveled locking block. The pull rod is fixedly connected to the outer side of the push plate. The pull ring is rotatably connected to the outer end of the pull rod. The spring is disposed within the side block.

[0007] As a preferred embodiment of this utility model, the injection molding machine body and the injection platform are provided with telescopic cylinders, the upper surface of the injection molding machine body is provided with a guardrail, the upper surface of the lower pressure plate is provided with a fixing head, and a control panel is provided on one side of the injection molding machine body.

[0008] As a preferred embodiment of this utility model, the bottom of the lower pressure plate is threaded with a fixing bolt, the fixing bolt is provided with a clamping strip, and the upper surface of the lower pressure plate is provided with an injection molding module.

[0009] As a preferred embodiment of this utility model, the clamping plates are arranged on the four sides of the top plate body, and the push plate is slidably connected to the side block.

[0010] In a preferred embodiment of this utility model, the pull rod is slidably inserted into the side block, and the spring is disposed between the pull rod and the inner wall of the side block, with the spring sleeved on the pull rod.

[0011] As a preferred embodiment of this utility model, the clamping strip is disposed on the lower surface of the top plate body.

[0012] As a preferred embodiment of this utility model, the lower mold frame is positioned directly below the upper mold frame.

[0013] As a preferred embodiment of this utility model, the top end of the telescopic cylinder is fixedly connected to the lower pressure plate, and the fixing head is fixedly connected to the top of the telescopic cylinder.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This mold frame for preventing top plate slippage works by pushing a limiting push rod at the bottom of the lower pressure plate inward after the top plate body and upper mold frame are fixed with fixing bolts and clamping strips. This causes the clamping plate at the inner end of the limiting push rod to move inward and contact the side wall of the top plate body. This process is repeated to operate the four sets of clamping plates at the bottom of the lower pressure plate to clamp and fix the top plate body. During the inward movement of the limiting push rod, the inclined locking block slides in the groove of the inclined locking groove until the clamping plate is in close contact with the top plate body. After that, the limiting push rod stops moving. The inclined locking block is pushed into the corresponding groove of the inclined locking groove by the side block and the push plate and locks the limiting push rod. At this time, all four sides of the top plate body are clamped and fixed. If the fixing bolts and clamping strips become loose due to long-term use, the clamping plate can effectively limit the top plate body and upper mold frame to prevent slippage. This device is convenient for preventing the top plate body from slipping during use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a bottom view of the main structure of the injection molding machine mold frame of this utility model;

[0018] Figure 3 This is a schematic diagram of the main structure of the lower mold frame and injection molding module of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure of the lower pressure plate, upper mold frame and top plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the connection structure of the top plate, the lower pressure plate, and the anti-slip mechanism of this utility model.

[0021] In the diagram: 1. Injection molding machine body; 101. Injection table; 102. Lower mold frame; 103. Telescopic cylinder; 104. Guardrail; 105. Fixing head; 106. Control panel; 2. Lower pressure plate; 201. Fixing bolt; 202. Clamping strip; 203. Top plate body; 204. Upper mold frame; 205. Injection module; 3. Anti-slip mechanism; 301. Fixing frame; 302. Limiting push rod; 303. Clamping plate; 304. Sloping locking groove; 305. Side block; 306. Push plate; 307. Sloping locking block; 308. Pull rod; 309. Pull ring; 310. Spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 A mold frame for preventing top plate slippage includes an injection molding machine body 1, an injection table 101 on the upper surface of the injection molding machine body 1, a lower mold frame 102 on the upper surface of the injection table 101, a lower pressure plate 2 above the injection molding machine body 1, a top plate body 203 on the lower surface of the lower pressure plate 2, an upper mold frame 204 fixedly connected to the lower surface of the top plate body 203, and an anti-slip mechanism between the lower pressure plate 2 and the top plate body 203 to prevent the lower pressure plate 2 from slipping. The sliding mechanism 3, the injection molding machine body 1 and the injection table 101 are equipped with telescopic cylinders 103, the upper surface of the injection molding machine body 1 is equipped with a guardrail 104, the upper surface of the lower pressure plate 2 is equipped with a fixing head 105, the side of the injection molding machine body 1 is equipped with a control panel 106, the lower mold frame 102 is located directly below the upper mold frame 204, the top of the telescopic cylinder 103 is fixedly connected to the lower pressure plate 2, and the fixing head 105 is fixedly connected to the top of the telescopic cylinder 103.

[0024] Please see Figure 4 The bottom of the lower pressure plate 2 is threaded with a fixing bolt 201, and a clamping strip 202 is provided on the fixing bolt 201. An injection molding module 205 is provided on the upper surface of the lower pressure plate 2, and the clamping strip 202 is clamped on the lower surface of the top plate body 203.

[0025] Please see Figure 4-5 The anti-slip mechanism 3 includes a fixed frame 301, a limiting push rod 302, a clamping plate 303, an inclined locking groove 304, a side block 305, a push plate 306, an inclined locking block 307, a pull rod 308, a pull ring 309, and a spring 310. The fixed frame 301 is fixedly connected to the lower surface of the lower pressure plate 2 around the top plate body 203. The limiting push rod 302 is inserted through the fixed frame 301. The clamping plate 303 is fixedly connected to the inner end of the limiting push rod 302. The inclined locking groove 304 is opened on both sides of the limiting push rod 302. The side block 305 is fixedly connected to both sides of the fixed frame 301. The inclined locking block 307 is slidably inserted through the fixed frame 301. The fixed frame 301 and side block 305 are connected, and the inclined locking block 307 is movably engaged with the inclined locking groove 304. The push plate 306 is fixedly connected to the outer end of the inclined locking block 307. The pull rod 308 is fixedly connected to the outer side of the push plate 306. The pull ring 309 is rotatably connected to the outer end of the pull rod 308. The spring 310 is set inside the side block 305. The clamping plate 303 is clamped on the four sides of the top plate body 203. The push plate 306 is slidably connected inside the side block 305. The pull rod 308 is slidably inserted into the side block 305. The spring 310 is set between the pull rod 308 and the inner wall of the side block 305. The spring 310 is sleeved on the pull rod 308.

[0026] By setting a fixed frame 301, a limiting push rod 302, and a clamping plate 303, the top plate body 203 and the upper mold frame 204, which are fixed to the bottom of the lower pressure plate 2 using fixing bolts 201 and clamping strips 202, are further fixed around the perimeter, preventing the top plate body 203 and the upper mold frame 204 from slipping off the bottom of the lower pressure plate 2 due to loosening of the fixing bolts 201 and clamping strips 202. This is achieved by setting an inclined locking groove 304, a side block 305, and a push plate. 306 and inclined locking block 307 are provided to lock the insertion position of inclined locking groove 304. By setting pull rod 308 and pull ring 309, the inclined locking block 307 can be pulled out from the inside of inclined locking groove 304 to release the lock on limit push rod 302. When it is necessary to replace the top plate body 203 and upper mold frame 204, the limit push rod 302 and clamping plate 303 can be pulled outward to release the clamping limit on the top plate body 203.

[0027] Working principle: When a mold frame for preventing top plate slippage is used, in the initial state, the injection table 101 and the telescopic cylinder 103 are first set on the upper surface of the injection molding machine body 1. The lower pressure plate 2 and the injection module 205 are set on the top of the telescopic cylinder 103 through the fixing head 105. The lower mold frame 102, the top plate body 203 and the upper mold frame 204 are respectively set on the upper surface of the injection table 101 and the lower surface of the lower pressure plate 2, so as to facilitate injection molding production processing using the top plate body 203 and the upper mold frame 204. The limiting push rod 302 and the clamping plate 303 with inclined locking grooves 304 on both sides are inserted into the fixing frame 301 fixedly connected at the bottom of the lower pressure plate 2. The inclined locking grooves 304 are engaged with the inclined locking blocks 307 set in the side blocks 305 on both sides of the fixing frame 301, so as to clamp and limit the top plate body 203 at the bottom of the lower pressure plate 2.

[0028] When it is necessary to prevent the top plate body 203 from slipping during use, after the top plate body 203 and the upper mold frame 204 are fixed with fixing bolts 201 and clamping strips 202, push the limiting push rod 302 at the bottom of the lower pressure plate 2 to move inward, so that the clamping plate 303 at the inner end of the limiting push rod 302 moves inward and contacts the side wall of the top plate body 203. This is repeated to operate the four sets of clamping plates 303 at the bottom of the lower pressure plate 2 to clamp and fix the top plate body 203. During the inward movement of the limiting push rod 302, the inclined locking block 307 will be in the groove of the inclined locking groove 304. The clamping plate 303 slides inward until it is in contact with the top plate body 203 and the limiting push rod 302 stops moving. The inclined locking block 307 is pushed into the corresponding slot of the inclined locking groove 304 by the side block 305 and the push plate 306 and locks the limiting push rod 302. At this time, all four sides of the top plate body 203 are clamped and fixed. If the fixing bolt 201 and the clamping strip 202 become loose due to long-term use, the clamping plate 303 can effectively limit the top plate body 203 and the upper mold frame 204 to prevent slippage. This device is convenient to prevent the top plate body 203 from slipping during use.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mold frame for preventing top plate slippage, comprising an injection molding machine body (1), characterized in that: An injection molding table (101) is provided on the upper surface of the injection molding machine body (1), a lower mold frame (102) is provided on the upper surface of the injection molding table (101), a lower pressure plate (2) is provided above the injection molding machine body (1), a top plate body (203) is provided on the lower surface of the lower pressure plate (2), an upper mold frame (204) is fixedly connected to the lower surface of the top plate body (203), and an anti-slip mechanism (3) is provided between the lower pressure plate (2) and the top plate body (203) to prevent the lower pressure plate (2) from slipping. The anti-slip mechanism (3) includes a fixed frame (301), a limiting push rod (302), a clamping plate (303), a sloping locking groove (304), a side block (305), a push plate (306), a sloping locking block (307), a pull rod (308), a pull ring (309), and a spring (310). The fixed frame (301) is fixedly connected to the lower surface of the pressure plate (2) around the top plate body (203). The limiting push rod (302) is inserted through the fixed frame (301). The clamping plate (303) is fixedly connected to the inner end of the limiting push rod (302). The sloping locking groove (304) 304) is opened on both sides of the limiting push rod (302), the side block (305) is fixedly connected to both sides of the fixed frame (301), the inclined locking block (307) is slidably inserted into the fixed frame (301) and the side block (305), and the inclined locking block (307) is movably engaged with the inclined locking groove (304), the push plate (306) is fixedly connected to the outer end of the inclined locking block (307), the pull rod (308) is fixedly connected to the outer side of the push plate (306), the pull ring (309) is rotatably connected to the outer end of the pull rod (308), and the spring (310) is set in the side block (305).

2. The mold frame for preventing top plate slippage according to claim 1, characterized in that: Telescopic cylinders (103) are provided on the injection molding machine body (1) and the injection table (101). A guardrail (104) is provided on the upper surface of the injection molding machine body (1). A fixing head (105) is provided on the upper surface of the lower pressure plate (2). A control panel (106) is provided on one side of the injection molding machine body (1).

3. The mold frame for preventing top plate slippage according to claim 1, characterized in that: The bottom of the lower pressure plate (2) is threaded with a fixing bolt (201), and a clamping strip (202) is provided on the fixing bolt (201). An injection molding module (205) is provided on the upper surface of the lower pressure plate (2).

4. The mold frame for preventing top plate slippage according to claim 1, characterized in that: The clamping plates (303) are clamped on all four sides of the top plate body (203), and the push plate (306) is slidably connected in the side block (305).

5. A mold frame for preventing top plate slippage according to claim 1, characterized in that: The pull rod (308) is slidably inserted into the side block (305), and the spring (310) is disposed between the pull rod (308) and the inner wall of the side block (305), and the spring (310) is sleeved on the pull rod (308).

6. A mold frame for preventing top plate slippage according to claim 3, characterized in that: The clamping bar (202) is clamped on the lower surface of the top plate body (203).

7. A mold frame for preventing top plate slippage according to claim 1, characterized in that: The lower mold frame (102) is located directly below the upper mold frame (204).

8. A mold frame for preventing top plate slippage according to claim 2, characterized in that: The top end of the telescopic cylinder (103) is fixedly connected to the lower pressure plate (2), and the fixing head (105) is fixedly connected to the top of the telescopic cylinder (103).