A mold ejector pin cutting device

Abstract

This utility model relates to a mold ejector pin cutting device, belonging to the technical field of mold ejector pin cutting equipment. It includes a base plate with a clamping assembly on the base plate. A locking block is located at the front end of the clamping assembly, and a scale is inserted into the locking block. A movable positioning caliper is slidably inserted into the scale. A pneumatic cutter is located on the side of the clamping assembly. The clamping assembly includes a clamping seat with a clamping pressure block that presses against the locking block. It integrates precision positioning, pneumatic clamping, and pneumatic cutting functions, effectively solving the problems of low efficiency, poor accuracy, uneven cuts, and operational safety hazards associated with traditional manual cutting methods. Through the cooperation of the scale and the movable positioning caliper, the ejector pin length can be quickly set and batch cut, ensuring the consistency of processing dimensions. It is an indispensable auxiliary tool in mold manufacturing and maintenance.

Description

Technical Field

[0001] This utility model relates to the technical field of mold ejector pin cutting equipment, and specifically to a mold ejector pin cutting device. Background Technology

[0002] Traditional ejector pin cutting involves manual measurement with measuring tools, marking, clamping in a fixture, and then cutting with a handheld cutting machine. Inaccurate marking during measurement, variations in line width and visual error, and other factors contribute to significant overall dimensional errors. Furthermore, clamping the ejector pin after measurement can cause positional shifts, and precise alignment with a handheld cutting machine is difficult. This is especially problematic in batch cutting, where consistent ejector pin lengths are not guaranteed, necessitating re-trimming after cutting. All of these factors create considerable challenges in both accuracy and efficiency during mold manufacturing.

[0003] Currently, ejector pin cutting machines are used for cutting ejector pins, which are specialized mechanical devices for precision cutting of mold ejector pins, pins, and other workpieces. This equipment uses a combination of a toothless saw blade with a thickness of only 1mm and a grinding wheel to complete cutting and grinding in one operation, achieving a cutting accuracy of ±0.01mm. The core structure includes a cast iron base and a lever fulcrum design, equipped with a quick-positioning fixture. However, ejector pin cutting machines suffer from drawbacks such as complex structure, large footprint, and high cost. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by providing a mold ejector pin cutting device. It features high-precision positioning, reliable clamping, efficient pneumatic cutting, a safe and secure design, and convenient operation. Integrating precision positioning, pneumatic clamping, and pneumatic cutting functions, it effectively solves the problems of low efficiency, poor accuracy, uneven cuts, and operational safety hazards associated with traditional manual cutting methods. Through the cooperation of a ruler and a movable positioning caliper, it enables rapid setting of ejector pin length and batch cutting, ensuring consistency in processing dimensions. It is an indispensable auxiliary tool in mold manufacturing and maintenance.

[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solutions:

[0006] A mold ejector pin cutting device includes a base plate, on which a clamping assembly is provided. A locking block is provided at the front end of the clamping assembly. A scale is provided on the locking block and inserted into it. A movable positioning caliper is provided on the scale and slidably inserted into it. A pneumatic cutter is provided on the side of the clamping assembly. The clamping assembly includes a clamping seat, on which a clamping pressure block is provided that presses against the locking block.

[0007] Preferably, the clamping seat is provided with a lead screw for driving the displacement of the clamping block, and the rear end of the lead screw is provided with a clamping handwheel that is fixed to the lead screw by a screw.

[0008] Preferably, the pneumatic cutting machine includes a cutting base, a cutting head is provided between the cutting base and the clamping block, and a pneumatic cutting motor for driving the cutting head is provided at the rear end of the cutting base.

[0009] Preferably, the cutting head includes a cutting blade, and a protective cover is provided above the cutting blade and connected and fixed to the cutting seat.

[0010] Preferably, the upper part of the card block is provided with several clamping screws for fixing the scale.

[0011] Preferably, both sides of the clamping seat are provided with guide pressure plates that are screwed and fixed to the base plate.

[0012] Preferably, the clamping block has a fixing bolt at its rear end, and a spring is provided between the fixing bolt and the clamping block.

[0013] This invention can achieve the following effects:

[0014] This utility model provides a mold ejector pin cutting device, which, compared with the prior art, features high-precision positioning, reliable clamping, efficient pneumatic cutting, safety protection design, and convenient operation.

[0015] High-precision positioning: The length setting method combines a ruler and a movable positioning caliper, making positioning intuitive, accurate, and with high repeatability.

[0016] Reliable clamping: The mechanical clamping mechanism, consisting of a lead screw and a clamping block, combined with spring pre-compression, ensures that the ejector pin will not loosen or shift during high-speed cutting.

[0017] High-efficiency pneumatic cutting: The pneumatic cutting machine drives the cutting blade with high speed and strong power, resulting in a flat, smooth, and burr-free cutting surface, which greatly improves cutting efficiency and quality.

[0018] Safety protection design: A fixed protective cover is installed above the cutting blade to effectively prevent debris from flying during the cutting process and protect the safety of operators.

[0019] Easy to operate: The overall structure is designed with a user-friendly approach, and the operation steps are simple and clear. No complicated training is required to get started, reducing labor intensity.

[0020] It has the following significant beneficial effects:

[0021] Improve cutting accuracy: Static comparison and real-time length measurement are achieved through a high-precision ruler measurement module, with a measurement accuracy of ±0.01mm, eliminating errors caused by manual marking and human visual perception; the clamping component of the positioning measurement mechanism is integrated with the positioning seat, avoiding pin movement and repeated positioning, and greatly improving pin length accuracy.

[0022] Improve production efficiency: The automatic cutting, positioning, measurement and cutting process replaces the traditional manual operation. The cutting force is uniform and the cutting cycle of a single pin is shortened from 30-60 seconds in the traditional method to 5-8 seconds, which improves efficiency by more than 500% and can meet the needs of batch continuous production.

[0023] Ensuring batch consistency: Through static comparison and real-time length measurement, the length difference of batch-cut ejector pins can be controlled within 0.02mm, avoiding secondary trimming processes due to individual differences and reducing subsequent processing costs.

[0024] Enhanced adaptability: By adjusting the control system parameters, it can adapt to the cutting needs of different specifications of ejector pins (diameter 3-20mm, length 50-300mm) without replacing the core components, thus improving the versatility and practicality of the device. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model.

[0026] Figure 2 This is a top view of the structure of this utility model.

[0027] Figure 3 This is a side view of the structure of this utility model.

[0028] Figure 4 This is a front view structural diagram of this utility model.

[0029] In the diagram: 1. Clamping block; 2. Movable positioning caliper; 3. Scale; 4. Clamping assembly; 5. Base plate; 6. Pneumatic cutter; 7. Guide pressure plate; 8. Clamping pressure block; 9. Lead screw; 10. Clamping seat; 11. Clamping handwheel; 12. Pneumatic cutting motor; 13. Cutting seat; 14. Cutting head; 15. Clamping screw; 16. Spring; 17. Fixing bolt; 18. Protective cover; 19. Cutting disc. Detailed Implementation

[0030] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0031] Example: Figure 1-4As shown, a mold ejector pin cutting device includes a base plate 5, on which a clamping assembly 4 is provided. The clamping assembly 4 includes a clamping seat 10, and guide pressure plates 7 are provided on both sides of the clamping seat 10 and are screwed and fixed to the base plate 5. The clamping seat 10 is provided with a clamping block 8 that presses against a clamping block 1. A fixing bolt 17 is provided at the rear end of the clamping block 8, and a spring 16 is provided between the fixing bolt 17 and the clamping block 8. The clamping seat 10 is provided with a lead screw 9 that drives the clamping block 8 to move. A clamping handwheel 11 is provided at the rear end of the lead screw 9 and is fixed with a screw. The clamping assembly 4 is provided with a clamping block 1 at the front end. A scale 3 is inserted and connected to the clamping block 1. Two clamping screws 15 are provided on the upper part of the clamping block 1 for fixing the scale 3. A movable positioning caliper 2 is slidably inserted and connected to the scale 3. A pneumatic cutter 6 is provided on the side of the clamping assembly 4. The pneumatic cutting machine 6 includes a cutting base 13, a cutting head 14 is provided between the cutting base 13 and the clamping block 8, and a pneumatic cutting motor 12 for driving the cutting head 14 is provided at the rear end of the cutting base 13. The cutting head 14 includes a cutting blade 19, and a protective cover 18 is provided above the cutting blade 19 and is connected and fixed to the cutting base 13.

[0032] The operation steps are as follows:

[0033] (1) Reset the clamping component 4 to the initial position of the front end.

[0034] (2) Pre-clamp the ejector pin between the clamping assembly 4 and the card block 1.

[0035] (3) Adjust the movable positioning caliper 2 on the scale 3 to adjust the pin to the required length position, and tighten the screw on the movable positioning caliper 2.

[0036] (4) Tighten the clamping handwheel 11 so that the screw 9 drives the clamping block 8 to clamp the ejector pin, so that the ejector pin does not move.

[0037] (5) Turn on the switch of the pneumatic cutting motor 12 to make the cutting blade 19 rotate at high speed.

[0038] (6) Release the clamping assembly 4 so that the clamping assembly 4 moves the cutting pin slowly backward automatically through the guide plate 7 and the spring 16.

[0039] In summary, this mold ejector pin cutting device solves the problems of dimensional accuracy and efficiency in ejector pin cutting during mold manufacturing, ensuring precise and efficient ejector pin cutting. It eliminates errors caused by manual measurement and marking, including inaccurate marking positions, variations in marking line width, and visual judgment errors leading to insufficient ejector pin length measurement accuracy. It resolves the positional offset that occurs during the ejector pin's movement from the measurement position to clamping in the fixture, as well as the technical challenge of accurately aligning the marking line when using a handheld cutting machine. It improves the consistency of ejector pin length during batch cutting, avoiding subsequent trimming processes due to individual differences. Ultimately, it enhances the overall efficiency of ejector pin cutting, reduces time lost through manual operation, and lowers labor and time costs in mold manufacturing.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] In summary, the above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A mold ejector pin cutting device, characterized in that: The device includes a base plate (5), on which a clamping assembly (4) is provided. The clamping assembly (4) has a locking block (1) at its front end. The locking block (1) has a scale (3) that is inserted and connected to the locking block (1). The scale (3) has a movable positioning caliper (2) that is slidably inserted and connected to the scale (3). The clamping assembly (4) has a pneumatic cutting machine (6) on its side. The clamping assembly (4) includes a clamping seat (10), on which a clamping pressure block (8) is pressed against the locking block (1).

2. The mold ejector pin cutting device according to claim 1, characterized in that: The clamping seat (10) is provided with a lead screw (9) for driving the displacement of the clamping block (8), and the rear end of the lead screw (9) is provided with a clamping handwheel (11) that is fixed with a screw connected to the lead screw (9).

3. The mold ejector pin cutting device according to claim 1, characterized in that: The pneumatic cutting machine (6) includes a cutting seat (13), a cutting head (14) is provided between the cutting seat (13) and the clamping block (8), and a pneumatic cutting motor (12) for driving the cutting head (14) is provided at the rear end of the cutting seat (13).

4. The mold ejector pin cutting device according to claim 3, characterized in that: The cutting head (14) includes a cutting blade (19), and a protective cover (18) is provided above the cutting blade (19) and is connected and fixed to the cutting seat (13).

5. The mold ejector pin cutting device according to claim 1, characterized in that: The upper part of the card block (1) is provided with several clamping screws (15) for fixing the scale (3).

6. The mold ejector pin cutting device according to claim 1, characterized in that: The clamping seat (10) is provided with guide pressure plates (7) on both sides, which are screwed and fixed to the base plate (5).

7. The mold ejector pin cutting device according to claim 1, characterized in that: The clamping block (8) is provided with a fixing bolt (17) at its rear end, and a spring (16) is provided between the fixing bolt (17) and the clamping block (8).

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