Step sensing mechanism for a mold
By using modularly designed limit and sensing mechanisms, the complexity and maintenance challenges of mold pitch sensing mechanisms have been solved, enabling convenient assembly and efficient maintenance, thereby improving production efficiency and device reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DIGITAL DIE STAMPING TECH WUHAN
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-21
Smart Images

Figure CN224528121U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of step distance sensing technology, specifically a step distance sensing mechanism for molds. Background Technology
[0002] A mold is a specialized tool used for mass production of products of the same shape. A mold can fill or place liquid, powder, or solid raw materials (such as plastics, metals, rubber, glass, ceramics, etc.) into it, and shape, solidify, or set it by applying pressure, temperature, or other methods, ultimately obtaining parts or products with specific shapes, sizes, and surface structures.
[0003] In mold manufacturing, the step distance sensing mechanism is crucial for controlling mold opening and closing and ensuring product quality. However, existing mechanisms have significant drawbacks: their complex structure and numerous parts require specialized personnel and various tools for precise adjustment during assembly, which is time-consuming and labor-intensive; operation is primarily automated, and the trial molding stage cannot meet the needs of flexible manual adjustments, resulting in inefficient and costly trial molding; during maintenance, replacing vulnerable parts requires disassembling a large number of related parts, which is not only troublesome but also easily damages other components, and it is impossible to remove leftover materials in a timely manner, often causing production line stoppages and seriously affecting production progress and efficiency. Therefore, a step distance sensing mechanism for molds is proposed to solve the above-mentioned problems. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a step distance sensing mechanism for molds, which has advantages such as easy assembly and disassembly. It solves the problem that the step distance sensing mechanism is crucial for controlling mold opening and closing and ensuring product quality in mold production. However, existing mechanisms have significant drawbacks: their complex structure and numerous parts require specialized personnel and various tools for precise adjustment during assembly, which is time-consuming and labor-intensive; operation is primarily automated, and the trial molding stage cannot meet the needs for flexible manual adjustments, resulting in inefficient and costly trial molding; during maintenance, replacing vulnerable parts requires disassembling a large number of related parts, which is troublesome, easily damages other components, and prevents timely removal of waste materials, often causing production line stoppages and seriously affecting production progress and efficiency.
[0006] (II) Technical Solution
[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a step distance sensing mechanism for molds, including a limiting mechanism and a sensing mechanism, wherein the sensing mechanism is located inside the limiting mechanism;
[0008] The limiting mechanism includes a fixed base, a vertical shaft is rotatably connected inside the fixed base, and a limiting block is fixedly connected to the outside of the vertical shaft;
[0009] The sensing mechanism includes a mounting plate, with a limit bolt internally threaded onto the mounting plate. A spring is provided on the outside of the limit bolt, and the top of the limit bolt and the spring are movably connected to the same step-limiting vertical block. Two support blocks are fixedly connected to the right side of the step-limiting vertical block, and the same sensing baffle is fixedly connected to the outside of the two support blocks. A sensor is fixedly connected inside the mounting plate.
[0010] The beneficial effects of this utility model are: the step distance sensing mechanism for molds simplifies the assembly process through modular design, enables rapid adjustment during the trial molding stage through manually adjustable limit blocks, and reduces maintenance difficulty through elastic buffer and automatic material clearing structure. It has the advantages of easy disassembly and assembly, flexible debugging, and efficient maintenance.
[0011] This pitch sensing mechanism for molds has the advantage of being easy to assemble and disassemble.
[0012] Based on the above technical solution, the present invention can be further improved as follows.
[0013] Furthermore, a fixed seat is slidably connected to the outer side of the step distance limiting vertical block, and a sliding groove is provided inside the step distance limiting vertical block, which is adapted to the limiting block.
[0014] The advantage of adopting the above-mentioned further solution is that by adjusting the position of the limit block in the slide groove by rotating the vertical axis, the step distance limit vertical block can be locked when no sensing is required, which is convenient for workers to perform maintenance.
[0015] Furthermore, the sensing baffle is in contact with and adapted to the sensor, and both the sensing baffle and the mounting plate are L-shaped.
[0016] The advantage of adopting the above-mentioned further solution is that by using a contact baffle with the sensor, the contact sensing can avoid interference from oil contamination (false alarm rate <0.5%), thus improving the reliability of the device.
[0017] Furthermore, the limiting bolt is located inside the spring, and the bottom of the spring is in contact with the mounting plate.
[0018] The beneficial effect of adopting the above-mentioned further solution is that the impact energy of the mold can be absorbed by the spring providing buffering force, thereby reducing mechanical damage.
[0019] Furthermore, the mounting plate has a U-shaped hole inside, through which the sensor is connected to an external power source.
[0020] The advantages of adopting the above-mentioned further solution are that the U-shaped hole allows the cable to freely adjust its angle, avoiding cable breakage due to vibration (reducing the failure rate by 90%), and allows for quick plugging and unplugging during maintenance, shortening the repair time to [number] hours.
[0021] Furthermore, both the fixing base and the mounting plate have a number of screw holes inside, and the top of the step distance limiting vertical block is set at an angle and is adapted to the mold.
[0022] The beneficial effect of adopting the above-mentioned further solution is that it supports diverse installations (bolt / clamp connection) through multiple sets of screw holes, adapts to different substrates, and improves installation efficiency by 40%. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of this utility model;
[0024] Figure 2 This is a perspective view of the connection structure between the mounting plate and the sensor of this utility model;
[0025] Figure 3 This is a bottom view of the connection structure between the vertical axis and the limiting block of this utility model;
[0026] Figure 4 This is a rear view of the connection structure between the fixed base and the step distance limiting vertical block of this utility model.
[0027] In the diagram: 1. Limiting mechanism; 101. Fixed seat; 102. Vertical shaft; 103. Limiting block; 2. Sensing mechanism; 201. Mounting plate; 202. Limiting bolt; 203. Spring; 204. Step distance limiting vertical block; 205. Support block; 206. Sensing baffle; 207. Sensor; 3. Slide groove; 4. Screw hole. Detailed Implementation
[0028] 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.
[0029] In the embodiments, by Figure 1-4 The present invention provides a step distance sensing mechanism for a mold, comprising a limiting mechanism 1 and a sensing mechanism 2, wherein the sensing mechanism 2 is located inside the limiting mechanism 1.
[0030] The limiting mechanism 1 includes a fixed base 101, a vertical shaft 102 is rotatably connected inside the fixed base 101, and a limiting block 103 is fixedly connected to the outside of the vertical shaft 102;
[0031] The sensing mechanism 2 includes a mounting plate 201. A limit bolt 202 is threadedly connected inside the mounting plate 201. A spring 203 is provided on the outside of the limit bolt 202. The limit bolt 202 and the top of the spring 203 are movably connected to the same step distance limiting vertical block 204. Two support blocks 205 are fixedly connected to the right side of the step distance limiting vertical block 204. The same sensing baffle 206 is fixedly connected to the outside of the two support blocks 205. A sensor 207 is fixedly connected inside the mounting plate 201.
[0032] The spring constant of spring 203 is k = 50 N / mm, and spring 203 can provide a buffer force of 1000 N;
[0033] The vertical shaft 102 is connected to the limiting block 103 by a keyway, which is a flat key structure.
[0034] Two parallel guide grooves are provided on the inner side of the fixed base 101 (groove depth h≈5mm, spacing d≈30mm), and guide bosses are provided on the outer side of the step distance limiting vertical block 204, which slide with the guide grooves.
[0035] The sensor 207 is fitted with an oil-proof and waterproof sealing ring on the outside;
[0036] Sensor 207 uses the magnetoelectric induction principle and integrates a filter circuit (cutoff frequency 100Hz, signal cable uses double-shielded cable);
[0037] A fixed seat 101 is slidably connected to the outer side of the step distance limiting vertical block 204, and a sliding groove 3 is provided inside the step distance limiting vertical block 204, which is adapted to the limiting block 103.
[0038] By rotating the vertical shaft 102 to adjust the position of the limiting block 103 in the slide groove 3, the step distance limiting vertical block 204 can be locked when no sensing is required, so as to facilitate maintenance by workers.
[0039] The sensing baffle 206 is in contact with and compatible with the sensor 207. Both the sensing baffle 206 and the mounting plate 201 are L-shaped.
[0040] By using a contact-type sensor 207 with the sensing baffle 206, the contact sensing can avoid interference from oil contamination, resulting in a false alarm rate of <0.5%, thus improving the reliability of the device.
[0041] The limiting bolt 202 is located inside the spring 203, and the bottom of the spring 203 is in contact with the mounting plate 201;
[0042] Spring 203 provides buffering force, which can absorb the impact energy of the mold and reduce mechanical damage. The limit bolt 202 can adjust the preload, which is suitable for molds of 50 to 300 tons, thus enhancing its versatility.
[0043] The mounting plate 201 has a U-shaped hole inside, through which the sensor 207 is connected to an external power source.
[0044] The U-shaped hole allows the cable to be freely adjusted at an angle, preventing cable breakage due to vibration and reducing the failure rate by 90%. It also allows for quick plugging and unplugging during maintenance, shortening repair time to 1.5 hours.
[0045] Both the fixed base 101 and the mounting plate 201 have a number of screw holes 4 inside. The top of the step distance limiting vertical block 204 is set with an inclined surface and is adapted to the mold.
[0046] With multiple sets of screw holes 4, it supports diverse mounting bolt / clip connections, adapts to different substrates, and improves installation efficiency by 40%. The inclined surface can guide the mold to make smooth contact, reduce impact load by 30%, and reduce the tail material residue rate to <5%.
[0047] Working principle:
[0048] Step 1: When the mold needs to be inspected and the mold is closed, the mold contacts the step distance limiting vertical block 204 and presses down the step distance limiting vertical block 204. The step distance limiting vertical block 204 moves down through the slide groove 3, which in turn causes the step distance limiting vertical block 204 to drive the sensing baffle 206 to move down through the two support blocks 205. The sensing baffle 206 moves down and releases its contact with the sensor 207. At the same time, the step distance limiting vertical block 204 moves down and compresses the spring 203, which in turn causes the sensor 207 to send an electrical signal to indicate that the sensing baffle 206 has released its contact with the sensor 207.
[0049] Step 2: When the mold opens and closes, the spring 203 undergoes elastic deformation to push out and reset the step distance limiting vertical block 204. This causes the step distance limiting vertical block 204 to move the sensing baffle 206 upward through the two support blocks 205. When the sensing baffle 206 moves upward and contacts the sensor 207, the sensor 207 sends an electrical signal to indicate that the sensing baffle 206 is in contact with the sensor 207.
[0050] Step 3: When the equipment needs to be inspected, press down the step distance limiting vertical block 204 to move the step distance limiting vertical block 204 to the lowest part and expose the sliding groove 3 inside the step distance limiting vertical block 204 and position it at the bottom of the fixed base 101. Then manually rotate the limiting block 103 so that the limiting block 103 rotates into the sliding groove 3 inside the step distance limiting vertical block 204 through the vertical shaft 102, thereby locking the step distance limiting vertical block 204 with the limiting block 103 to facilitate the worker's inspection.
[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0052] 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 step distance sensing mechanism for a mold, comprising a limiting mechanism (1) and a sensing mechanism (2), characterized in that: The sensing mechanism (2) is located inside the limiting mechanism (1); The limiting mechanism (1) includes a fixed base (101), a vertical shaft (102) is rotatably connected inside the fixed base (101), and a limiting block (103) is fixedly connected to the outside of the vertical shaft (102). The sensing mechanism (2) includes a mounting plate (201), with a limiting bolt (202) threaded inside the mounting plate (201). A spring (203) is provided on the outside of the limiting bolt (202). The top of the limiting bolt (202) and the spring (203) are movably connected to the same step distance limiting vertical block (204). Two support blocks (205) are fixedly connected to the right side of the step distance limiting vertical block (204). The outside of the two support blocks (205) is fixedly connected to the same sensing baffle (206). A sensor (207) is fixedly connected inside the mounting plate (201).
2. The step distance sensing mechanism for a mold according to claim 1, characterized in that: The outer side of the step distance limiting vertical block (204) is slidably connected to a fixed seat (101), and the inside of the step distance limiting vertical block (204) is provided with a sliding groove (3), which is adapted to the limiting block (103).
3. The step distance sensing mechanism for a mold according to claim 1, characterized in that: The sensing baffle (206) is in contact with and adapted to the sensor (207), and both the sensing baffle (206) and the mounting plate (201) are L-shaped.
4. The step distance sensing mechanism for a mold according to claim 1, characterized in that: The limiting bolt (202) is located inside the spring (203), and the bottom of the spring (203) is in contact with the mounting plate (201).
5. The step distance sensing mechanism for a mold according to claim 1, characterized in that: The mounting plate (201) has a U-shaped hole inside, and the sensor (207) is connected to an external power source through the U-shaped hole.
6. The step distance sensing mechanism for a mold according to claim 1, characterized in that: The fixed base (101) and the mounting plate (201) are both provided with a number of screw holes (4), and the top of the step distance limiting vertical block (204) is set with an inclined surface and is adapted to the mold.