Cold core box mold

Abstract

The utility model relates to the field of cold core boxes, and discloses a cold core box mold which comprises a mold plate, a fixing plate is installed on the rear surface of the mold plate, a positioning pin is installed on the rear surface of the fixing plate, a fixing assembly is arranged on the rear surface of the fixing plate and comprises a positioning plate, a positioning hole is formed in the front surface of the positioning plate, and the positioning pin is installed on the rear surface of the positioning plate. The positioning pin is inserted into the inner wall of the positioning hole, the rear surface of the positioning plate is slidably connected with a sliding rod, the right surface of the sliding rod is fixedly connected with an extrusion block, the rear end of the positioning plate is fixedly connected with a rotating shaft, and the outer wall of the rotating shaft is rotatably connected with a rotating ring. According to the utility model, through the arrangement of the fixing assembly, when the template needs to be installed, the positioning pin at the rear end of the fixing plate can be directly inserted into the positioning hole, and then the rotating ring can be driven to rotate by rotating the grip, so that the hinged plate can be driven to push the sliding rod to move outwards, and the sliding rod can drive the extrusion block to extrude the positioning pin to fix the positioning pin.

Description

Technical Field

[0001] This utility model relates to the field of cold core boxes, and in particular to a cold core box mold. Background Technology

[0002] Cold box molds are molds that use cold box technology and are mainly used to manufacture sand cores in casting production. They are generally composed of multiple mold bodies with receiving grooves inside. After multiple mold bodies are connected to each other, they can form a cavity for molding sand cores. At the same time, a sand-shooting plate is also installed on the rear surface of one side of the mold body. The sand-shooting plate is fixed to one of the mold bodies through a sand-shooting column. The sand-shooting through holes in the sand-shooting column can be used to inject molding sand into the receiving cavity.

[0003] In the existing technology, during production, it is often necessary to change the shape of the mold body according to different production needs. The mold body and the mounting plate are generally fixed by bolts. Therefore, multiple sets of bolts need to be disassembled and installed during installation, which is inconvenient and has low replacement efficiency. To solve the above problems, a cold core box mold is proposed. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a cold core box mold, which aims to improve the problem that "the existing technology generally uses bolts to fix the mold body, which results in low replacement efficiency when changing it".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cold box mold, comprising a template, a fixing plate mounted on the rear surface of the template, a positioning pin mounted on the rear surface of the fixing plate, a fixing component provided on the rear surface of the fixing plate, the fixing component comprising a positioning plate, a positioning hole provided on the front surface of the positioning plate, the positioning pin inserted into the inner wall of the positioning hole, a sliding rod slidably connected to the rear surface of the positioning plate, an extrusion block fixedly connected to the right surface of the sliding rod, a rotating shaft fixedly connected to the rear end of the positioning plate, a rotating ring rotatably connected to the outer wall of the rotating shaft, a connecting rod fixedly connected to the outer wall of the rotating ring, a hinge plate hinged to the inner wall of the connecting rod, the right end of the hinge plate hinged to the left end of the sliding rod, a handle fixedly connected to the outer wall of the rotating ring, a positioning post fixedly connected to the rear end of the positioning plate, an mounting plate fixedly connected to the rear surface of the positioning post by bolts, and a control component provided on the inner wall of the handle.

[0006] As a further description of the above technical solution:

[0007] The control component includes a plug that is slidably connected to the inner wall of the grip, the plug penetrating and inserting into the upper surface of the rotating ring, and a slot provided on the outer wall of the rotating shaft, the plug being inserted into the inner wall of the slot.

[0008] As a further description of the above technical solution:

[0009] A toggle block is fixedly connected to the upper surface of the insert block, and the toggle block is configured as T-shaped.

[0010] As a further description of the above technical solution:

[0011] A fixing spring is fixedly connected to the lower surface of the paddle, and the lower end of the fixing spring is fixedly connected to the inner wall of the handle.

[0012] As a further description of the above technical solution:

[0013] A fixed base is fixedly connected to the front surface of the grip, and a push block is slidably connected to the inner wall of the fixed base. The rear surface of the push block is set as an inclined surface, and the front surface of the push block is set as an inclined surface.

[0014] As a further description of the above technical solution:

[0015] The right surface of the extrusion block is set as an inclined plane.

[0016] As a further description of the above technical solution:

[0017] The slide rod and positioning pin are provided in multiple sets, and the multiple sets of slide rod and positioning pin are symmetrically arranged with the center line of the rotating shaft as the axis of symmetry.

[0018] As a further description of the above technical solution:

[0019] The connecting rods and hinge plates are provided in multiple sets, and the multiple sets of connecting rods and hinge plates are arranged in a rotating array with the center line of the rotating shaft as the rotation axis.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, by setting a fixing component, when the template needs to be installed, the positioning pin at the rear end of the fixing plate can be directly inserted into the positioning hole. Then, rotating the handle will drive the rotating ring to rotate, which will drive the hinge plate to push the slide rod to move outward. The slide rod will drive the pressing block to press the positioning pin to fix it. When disassembly is required, simply reverse the handle. The overall device has high replacement efficiency.

[0022] 2. In this utility model, by setting a control component, when it is necessary to rotate the handle, the push block must be pressed first to squeeze the paddle block and drive it to move upward. The paddle block will drive the insert block to disengage from the inside of the slot, and then the handle can be rotated. This setting can prevent the handle from rotating randomly during operation, and the overall device has good safety. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0024] Figure 2 This is a rear-view disassembled schematic diagram of the three-dimensional structure of the overall device in this utility model;

[0025] Figure 3 This is a three-dimensional cross-sectional view of the grip structure in this utility model;

[0026] Figure 4 This is a three-dimensional cross-sectional diagram of the control component in this utility model.

[0027] Legend:

[0028] 1. Template; 2. Fixing component; 21. Positioning plate; 22. Positioning post; 23. Positioning hole; 24. Slide rod; 25. Rotating shaft; 26. Connecting rod; 27. Hinge plate; 28. Rotating ring; 29. ​​Extrusion block; 210. Handle; 3. Mounting plate; 4. Fixing plate; 5. Positioning pin; 6. Control component; 61. Insert block; 62. Slot; 63. Fixing spring; 64. Toggle block; 65. Fixing base; 66. Push block. Detailed Implementation

[0029] 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.

[0030] Reference Figure 1 - Figure 3This utility model provides an embodiment of a cold box mold, including a template 1. A fixing plate 4 for supporting the template 1 is installed on the rear surface of the template 1. A positioning pin 5 for fixing the fixing plate 4 is installed on the rear surface of the fixing plate 4. The positioning pin 5 is relatively slender in the middle and has a frustoconical protrusion at its end. A fixing component 2 for fixing the positioning pin 5 is provided on the rear surface of the fixing plate 4. The fixing component 2 includes a positioning plate 21 for supporting the entire fixing component 2. The front surface of the positioning plate 21 is provided with a positioning hole for accommodating the positioning pin 5. 23. The positioning pin 5 is inserted into the inner wall of the positioning hole 23. When the fixing plate 4 and the positioning plate 21 are fully fitted, the slender middle part of the positioning pin 5 will pass through the positioning plate 21. The rear surface of the positioning plate 21 is slidably connected to a slide rod 24 for moving the pressing block 29. The right surface of the slide rod 24 is fixedly connected to the pressing block 29 for fixing the positioning pin 5. When the pressing block 29 is inserted into the outer wall of the positioning pin 5, the frustoconical protrusion at the end of the positioning pin 5 will be restricted from moving forward. In this way, the positioning pin 5 will be fixed and unable to move forward. Fixed plate 4 and positioning plate 21 will also be fixed. A rotating shaft 25 for supporting the rotation of rotating ring 28 is fixedly connected to the rear end of positioning plate 21. A rotating ring 28 for driving connecting rod 26 to rotate is rotatably connected to the outer wall of rotating shaft 25. A connecting rod 26 for pressing hinge plate 27 is fixedly connected to the outer wall of rotating ring 28. A hinge plate 27 for transmitting power is hinged to the inner wall of connecting rod 26. The right end of hinge plate 27 is hinged to the left end of slide rod 24. When rotating ring 28 rotates, it will drive connecting rod 26 to rotate synchronously. The rotation causes the hinge plate 27 to move, and the movement of the hinge plate 27 causes the slide rod 24 to move left and right. The outer wall of the rotating ring 28 is fixedly connected to a handle 210 for the operator to rotate the rotating ring 28. The rear end of the positioning plate 21 is fixedly connected to a positioning post 22 for fixing the positioning plate 21. The rear surface of the positioning post 22 is fixedly connected to a mounting plate 3 by bolts. The rear surface of the mounting plate 3 is directly mounted on the output shaft of the hydraulic press for easy control of the movement of the mounting plate 3. The inner wall of the handle 210 is provided with a control component 6 to prevent the handle 210 from moving arbitrarily.

[0031] Reference Figure 2 - Figure 4The control component 6 includes a plug 61 for fixing the grip 210. The plug 61 is slidably connected to the inner wall of the grip 210 and extends through the upper and lower ends of the outer wall of the grip 210. The plug 61 extends through and is inserted into the upper surface of the rotating ring 28. The outer wall of the rotating shaft 25 is provided with a slot 62 for accommodating the plug 61. The plug 61 is inserted into the inner wall of the slot 62. When the plug 61 is inserted into the slot 62, the plug 61 will be fixed and cannot rotate, and the grip 210 will also be fixed and cannot rotate. A lever 64 for moving the plug 61 is fixedly connected to the upper surface of the plug 61. The lever 64 is T-shaped, and a lever for moving the plug 61 is fixedly connected to the lower surface of the lever 64. A fixing spring 63 is used to prevent the lever 64 from moving arbitrarily. The lower end of the fixing spring 63 is fixedly connected to the inner wall of the handle 210. The fixing spring 63 will pull the lever 64 downward at all times, thus preventing the lever 64 from moving upward arbitrarily. A fixing seat 65 for supporting the movement of the push block 66 is fixedly connected to the front surface of the handle 210. A push block 66 for pressing the lever 64 is slidably connected to the inner wall of the fixing seat 65. The rear surface of the push block 66 is set as an inclined surface, and the front surface of the lever 64 is set as an inclined surface. By pushing the push block 66, the lever 64 can be pressed, thus causing the lever 64 to move upward. The upward movement of the lever 64 will cause the insert 61 to disengage from the inside of the slot 62.

[0032] Reference Figure 2 - Figure 4 The right surface of the extrusion block 29 is set as an inclined surface. The inclined surface makes it easy for the extrusion block 29 to be inserted into the outer wall of the positioning pin 5. Multiple sets of slide rods 24 and positioning pins 5 are provided. Multiple sets of slide rods 24 and positioning pins 5 are symmetrically arranged with the center line of the rotating shaft 25 as the axis of symmetry. Multiple sets of positioning pins 5 can fix the left and right sides of the fixing plate 4 respectively. Multiple sets of connecting rods 26 and hinge plates 27 are provided. Multiple sets of connecting rods 26 and hinge plates 27 are arranged in a rotating array with the center line of the rotating shaft 25 as the axis of rotation. When the rotating ring 28 rotates, the two sets of connecting rods 26 will simultaneously push the two sets of hinge plates 27 to move outward.

[0033] Working principle: When it is necessary to fix the fixing plate 4, the positioning pin 5 at the rear end of the fixing plate 4 can be inserted into the positioning hole 23. Then, press the push block 66 to squeeze the lever 64 to move it upward. The upward movement of the lever 64 will drive the insert block 61 to move upward. The upward movement of the insert block 61 will disengage it from the slot 62. Then, rotate the handle 210 to drive the rotating ring 28 to rotate. The rotation of the rotating ring 28 will drive the connecting rod 26 to rotate. The rotation of the connecting rod 26 will push the hinge plate 27 to move the two sets of hinge plates 27 outward synchronously. The outward movement of the hinge plate 27 will drive the pressing block 29 to press the positioning pin 5. In this way, the protruding part of the positioning pin 5 can be fixed. Then, the push block 66 can be released. The fixing spring 63 will pull the lever 64 downward to move it downward to reset. The downward movement of the lever 64 will drive the insert block 61 to re-insert into the slot 62. At this time, the handle 210 will be fixed again, and the fixing plate 4 will also be fixed.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cold-box mould comprising a mould plate (1), characterised in that: The rear surface of the template (1) is provided with a fixed plate (4), the rear surface of the fixed plate (4) is provided with a positioning pin (5), the rear surface of the fixed plate (4) is provided with a fixing assembly (2), the fixing assembly (2) comprises a positioning plate (21), the front surface of the positioning plate (21) is provided with a positioning hole (23), the positioning pin (5) is inserted into the inner wall of the positioning hole (23), the rear surface of the positioning plate (21) is slidably connected with a sliding rod (24), the right surface of the sliding rod (24) is fixedly connected with an extrusion block (29), the rear end of the positioning plate (21) is fixedly connected with a rotating shaft (25), the outer wall of the rotating shaft (25) is rotatably connected with a rotating ring (28), the outer wall of the rotating ring (28) is fixedly connected with a connecting rod (26), the inner wall of the connecting rod (26) is hingedly connected with a hinged plate (27), the right end of the hinged plate (27) is hingedly connected with the left end of the sliding rod (24), the outer wall of the rotating ring (28) is fixedly connected with a handle (210), the rear end of the positioning plate (21) is fixedly connected with a positioning column (22), the rear surface of the positioning column (22) is fixedly connected with a mounting plate (3) through bolts, and the inner wall of the handle (210) is provided with a control assembly (6).

2. A cold-box mold according to claim 1, characterized in that: The control assembly (6) comprises an insertion block (61), the insertion block (61) is slidably connected to the inner wall of the handle (210), and the insertion block (61) penetrates and is inserted into the upper surface of the rotating ring (28); the outer wall of the rotating shaft (25) is provided with an insertion slot (62), and the insertion block (61) is inserted into the inner wall of the insertion slot (62).

3. A cold box mold according to claim 2, characterized in that: The upper surface of the insertion block (61) is fixedly connected with a dial block (64), and the dial block (64) is in T-shaped structure.

4. A cold box mold according to claim 3, characterized in that: The lower surface of the dial block (64) is fixedly connected with a fixed spring (63), and the lower end of the fixed spring (63) is fixedly connected to the inner wall of the handle (210).

5. A cold box mold according to claim 4, characterized in that: The front surface of the handle (210) is fixedly connected with a fixed seat (65), the inner wall of the fixed seat (65) is slidably connected with a push block (66), the rear surface of the push block (66) is provided as an inclined surface, and the front surface of the dial block (64) is provided as an inclined surface.

6. A cold box mold according to claim 1, characterized in that: The right surface of the extrusion block (29) is provided as an inclined surface.

7. A cold box mold according to claim 1, characterized in that: The sliding rod (24) and the positioning pin (5) are provided in multiple groups, and the multiple groups of the sliding rod (24) and the positioning pin (5) are symmetrically arranged with the center line of the rotating shaft (25) as the axis of symmetry.

8. A cold box mold according to claim 1, characterized in that: The connecting rod (26) and the hinged plate (27) are provided in multiple groups, and the multiple groups of the connecting rod (26) and the hinged plate (27) are rotatably arranged with the center line of the rotating shaft (25) as the rotation axis.

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