Anti-interference material sensing device of drawing die

Abstract

The utility model discloses a kind of anti-interference material sensing devices of draw die, it is used to induct whether material reaches predetermined position, it is characterized by: including sensing component and swing mechanism fixedly connected to the side of sensing component;Wherein, sensing component, it includes the lateral table of transverse extension arrangement, and the inductor of lateral wall of lateral table, the side end opening of the lateral table is recessed with first cavity, the inductor is inserted and is connected with lateral table and makes the inductive end of the inductor be placed in the first cavity;Swing mechanism, it includes the longitudinal table of longitudinal extension arrangement, and movable swing block built-in the second cavity of longitudinal table bottom;The movable swing block is rotatably connected with longitudinal table by pin shaft, the lateral wall of longitudinal table and the side end opening of lateral table are fixedly connected, so that the first cavity and second cavity are communicated;The utility model solves the problem that the inductive accuracy is poor and the space utilization is inefficient due to the completely exposed design of the existing detection switch.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to an anti-interference material sensing device for drawing dies. Background Technology

[0002] With the rapid development of the global automotive industry, competition is becoming increasingly fierce, especially with the rapid development of new energy vehicles and intelligent connected vehicles. Cost reduction and efficiency improvement have become crucial for the survival and development of enterprises. Currently, automation in the manufacturing and stamping processes of automotive parts molds is the most effective way to reduce costs. This has led to a continuous increase in the demand for material feeding detection and positioning switches in automated molds. For example, material feeding detection and positioning are essential in automated drawing dies. A typical drawing die set is equipped with two sets of material feeding detection and positioning switches to detect whether the material arrives at the predetermined position accurately and on time.

[0003] However, the design positions of the movable component and sensor of the feeding detection switch used in existing drawing dies are extremely unreasonable. This results in the sensing parts of the movable component and the sensing end of the sensor being completely exposed, leading to several problems in practical use: First, the fully exposed sensing part is easily interfered with by the external environment, such as iron filings, oil stains, or other production debris, or by accidental activation by personnel, causing incorrect signal transmission and resulting in the die receiving incorrect instructions and malfunctioning. Second, the exposed structure is not efficient in terms of space utilization, occupying a large volume, and requires additional space for swinging, resulting in low space utilization and hindering the trend towards miniaturization and integration of equipment. Therefore, a new structural design is urgently needed to solve these problems. Utility Model Content

[0004] This utility model provides an anti-interference material sensing device for drawing dies, which overcomes the shortcomings of the prior art and adopts the following technical solution:

[0005] An anti-interference material sensing device for a drawing die, used to sense whether material has reached a predetermined position, is characterized by: including a sensing component and a swing mechanism fixedly connected to the side of the sensing component; wherein, the sensing component includes a horizontally extending platform and a sensor disposed on the outer wall of the platform, the side opening of the platform has a recessed first cavity, and the sensor is inserted into the platform such that the sensing end of the sensor is placed in the first cavity; the swing mechanism includes a longitudinally extending platform and a movable swing block built into a second cavity at the bottom of the platform; the movable swing block is rotatably connected to the platform via a pin, and the side wall of the platform is fixedly connected to the side opening of the platform, so that the first cavity and the second cavity are connected; the movable swing block is partially exposed outside the second cavity in its natural state, and its exposed part can rotate when subjected to the force of the material, rotating from the second cavity to the first cavity, so that the sensing part on the outer surface of the movable swing block corresponds to the sensing end of the sensor and triggers a signal, and after the external force disappears, it returns to the second cavity under its own weight.

[0006] Preferably, the sensing part is configured as a time-delay sensing part, and the surface of the time-delay sensing part is formed with an arc-shaped time-delay trajectory extending along the rotation direction of the movable pendulum. When the movable pendulum rotates to the end of the time-delay trajectory, the sensor receives a time-delay trigger signal.

[0007] Preferably, the side opening of the horizontal platform is further recessed to form a first abutting wall and a second abutting wall, both of which are adapted to the shape of the outer wall surface of the vertical platform, and the vertical platform is welded and fixed to the horizontal platform by abutting against the first abutting wall and the second abutting wall.

[0008] Preferably, the outer wall of the cross platform is formed with a through hole that communicates with the first cavity, the sensor is inserted into the through hole and connected to the cross platform, and the end face of the sensing end of the sensor is flush with the inner wall surface of the first cavity.

[0009] Preferably, the distance between the two inner sidewalls of the second cavity is less than or equal to the distance between the two inner sidewalls of the first cavity; when the movable swing block enters the first cavity from the second cavity and corresponds to the sensing end of the sensor, the outer sidewall of the movable swing block forms a clearance gap relative to the two inner sidewalls of the second cavity.

[0010] Preferably, the exposed portion of the movable pendulum block is configured as a top holding portion, which is located on the outer wall surface of the movable pendulum block. When the movable pendulum block is in its natural state, the top holding portion is exposed outside the second cavity, and when subjected to force, it retracts into the second cavity.

[0011] Preferably, the hinge end of the movable pendulum block and the sensing part are diagonally arranged at both ends of the movable pendulum block, and the hinge end is located at the upper part of the second cavity, while the sensing part is located at the lower part of the movable pendulum block, so that the sensing part hangs down into the second cavity under the action of gravity in a natural state.

[0012] Preferably, the side opening of the horizontal platform is located on the right end face of the horizontal platform, and the concave depth of the first cavity is not less than one-quarter of the transverse length of the horizontal platform; the horizontal platform is provided with at least one weight-reducing hole at intervals on the left side of the first cavity, and the weight-reducing hole extends through the platform perpendicularly to the platform surface.

[0013] As can be seen from the above description of this utility model, compared with the prior art, this utility model has the following beneficial effects:

[0014] (1) This utility model provides an anti-interference material sensing device for drawing dies, which solves the problems of poor sensing accuracy and inefficient space utilization caused by the completely exposed design of existing detection switches. In this utility model, the longitudinal platform and the transverse platform are fixedly connected, so that the first cavity and the second cavity are connected to form a cavity structure for the movement of movable parts. There is no need to reserve external clearance space, the overall volume is reduced, and the space utilization rate is improved. Secondly, the sensing end is built into the first cavity, avoiding exposure and reducing the probability of interference from production debris, which affects the sensing accuracy and effectively reduces the occurrence of production accidents.

[0015] (2) In this technical solution, the design of the delayed sensing part can effectively ensure that the sensor will trigger a signal only after the moving ornament has rotated for a certain time and distance, that is, to avoid the sensor being disturbed by external debris such as flying iron filings and sending a signal, and further reduce the probability of being disturbed by production debris.

[0016] (3) In this technical solution, the sensing end is flush with the inner wall of the first cavity, eliminating the protruding structure, preventing the moving part from rubbing and impacting the sensing end, thus reducing friction and improving service life.

[0017] (4) In this technical solution, the outer side wall of the movable swing block forms a clearance gap with respect to the two inner side walls of the second cavity, which further avoids the movable swing block from rubbing against the inner wall surface of the first cavity and reduces mechanical wear.

[0018] (5) In this technical solution, a diagonal layout is adopted to form a stable gravity lever structure, so that the movable pendulum block can be automatically reset by gravity without the need for additional reset components, which simplifies the mechanical structure and reduces costs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the anti-interference material sensing device installed on a drawing die according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 A magnified view of part A shown;

[0022] Figure 3 This is a schematic diagram of the overall structure of the anti-interference material sensing device according to an embodiment of the present invention;

[0023] Figure 4 This is an exploded view of the anti-interference material sensing device according to an embodiment of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the movable pendulum block rotating in its natural state according to an embodiment of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the movable pendulum block rotating under force in an embodiment of this utility model.

[0026] The annotations in the attached figures are explained as follows:

[0027] 1. Sensing component; 11. Horizontal platform; 11a. First cavity; 111. First abutting wall; 112. Second abutting wall; 113. Through hole; 12. Sensor; 121. Sensing end;

[0028] 2. Swinging mechanism; 21. Longitudinal stage; 21a. Second cavity; 22. Movable swing block; 221. Sensing part; 222. Hinge end; 223. Supporting part; 23. Pin. 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 preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0030] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0031] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing this utility model and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific protection scope of this utility model.

[0032] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.

[0033] In the claims, description and accompanying drawings of this utility model, the terms "comprising," "having," and variations thereof are used to mean "including but not limited to."

[0034] Please see Figures 1 to 6 .

[0035] This embodiment provides an anti-interference material sensing device for drawing dies, solving the problems of poor sensing accuracy and inefficient space utilization caused by the exposed structure of existing detection switches. See also... Figure 1 and Figure 2 This anti-interference material sensing device is installed on a drawing die to sense whether the material has reached a predetermined position. The material sensing device mainly includes: a sensing component 1 and a swing mechanism 2 fixedly connected to the side of the sensing component 1.

[0036] See Figures 3 to 5 ,

[0037] The sensing component 1 includes a horizontally extending platform 11 and a sensor 12 disposed on the outer wall of the platform 11. The side opening of the platform 11 has a recessed first cavity 11a. The sensor 12 is inserted and connected to the platform 11, with the sensing end 121 of the sensor 12 placed in the first cavity 11a. The platform 11 is a long strip structure, with the side opening located on the right end face of the platform 11. The recessed depth of the first cavity 11a is not less than one-quarter of the horizontal length of the platform 11. This ensures sufficient installation space for the sensor 12 and the movable swing block 22, while also ensuring the structural support strength on the left side of the platform 11 and improving the overall deformation resistance of the platform 11. The platform 11 has at least one weight-reducing hole at intervals (relative to the first cavity 11a) on the left side of the first cavity 11a. The weight-reducing hole extends perpendicularly through the platform 11. The design of the weight-reducing hole reduces the weight of the platform 11, reduces material costs, achieves a certain degree of lightweighting, and facilitates installation.

[0038] The swing mechanism 2 includes a longitudinally extending platform 21 and a movable swing block 22 built into a second cavity 21a at the bottom of the platform 21. The second cavity 21a is located at the bottom of the platform 21 and is an open cavity structure facing downwards. The movable swing block 22 is rectangular. The movable swing block 22 is rotatably connected to the through hole of the platform 21 through a pin 23. The side wall of the platform 21 is fixedly connected to the side opening of the horizontal platform 11, so that the first cavity 11a and the second cavity 21a are connected.

[0039] See Figure 5 In its natural state, the top support portion 223 of the movable rocker block 22 is partially exposed outside the second cavity 21a; see also Figure 6 When the exposed top support 223 of the movable swing block 22 is subjected to the force of the material, the movable swing block 22 can rotate from the second cavity 21a into the first cavity 11a, so that the sensing part 221 on the outer surface of the movable swing block 22 corresponds to the sensing end 121 of the sensor 12 and triggers a signal. See Figure 5 After the external force disappears, the object returns to the second cavity 21a under its own weight, and the top holding part 223 of the movable swing block 22 continues to be partially exposed outside the second cavity 21a.

[0040] In this embodiment, the sensor 12 is mainly a proximity sensor, and the sensing part 221 is mainly a part of the side wall surface of the movable swing block 22. That is, when the side wall surface of the movable swing block 22 is close to the sensing end 121 of the proximity sensor, the proximity sensor will emit a sensing signal.

[0041] In this embodiment, the reset principle of the movable pendulum block 22 is as follows: See Figure 5The hinge end 222 of the movable swing block 22 and the sensing part 221 are diagonally arranged at both ends of the movable swing block 22, with the hinge end 222 located at the upper part of the second cavity 21a and the sensing part 221 located at the lower part of the movable swing block 22. This allows the sensing part 221 to hang down into the second cavity 21a under the influence of gravity (rotation) in its natural state. That is, once the movable swing block 22 loses the force applied to it, it will rotate on the hinge end 222 due to its own gravity until the sensing part 221 abuts against the upper limit of the drawing die worktable surface to stop rotation. In other embodiments, the movable swing block 22 can be set at a certain height to prevent the sensing part 221 from contacting the drawing die worktable surface and causing collision and friction.

[0042] In this embodiment, see Figure 4 The side opening of the horizontal platform 11 is also recessed to form a first abutting wall 111 and a second abutting wall 112, which are adapted to the shape of the outer wall surface of the vertical platform 21. The vertical platform 21 is welded and fixed to the horizontal platform 11 by the first abutting wall 111 and the second abutting wall 112. The tight fit between the abutting wall and the outer wall surface of the vertical platform 21 prevents iron filings from entering the gap between them. At the same time, the welding and fixing improves the structural strength and makes positioning and installation more convenient.

[0043] In this embodiment, see Figure 4 The outer wall of the transverse platform 11 has a through hole 113 that communicates with the first cavity 11a. (See also...) Figure 5 The sensor 12 is inserted into the through hole 113 and connected to the horizontal platform 11. The end face of the sensing end 121 of the sensor 12 is flush with the inner wall of the first cavity 11a. The flushness of the sensing end 121 with the inner wall of the first cavity 11a eliminates the protruding structure and prevents the movable part from rubbing against the sensing end 121 and causing rotation jamming, thereby reducing friction.

[0044] In this embodiment, the sensor 12 is threadedly connected to the through hole 113 of the first cavity 11a. The sensor 12 has a stop flange surface. The sensor 12 is inserted into the through hole 113 and rotates. The stop flange surface restricts the sensor 12 from continuing to move in the through hole 113 so that the sensing end 121 of the sensor 12 is flush with the inner wall of the first cavity 11a.

[0045] In this embodiment, see Figure 4 and Figure 5 The distance between the two inner sidewalls of the second cavity 21a is less than or equal to the distance between the two inner sidewalls of the first cavity 11a. When the movable swing block 22 enters the first cavity 11a from the second cavity 21a and corresponds to the sensing end 121 of the sensor 12, the outer sidewall of the movable swing block 22 forms a clearance gap relative to the two inner sidewalls of the second cavity 21a, thus effectively preventing the movable swing block from rubbing against the inner wall surface of the first cavity 11a.

[0046] In this embodiment, the exposed portion of the movable swing block 22 is configured as a top holding portion 223. The top holding portion 223 is located on the outer wall surface of the movable swing block 22. When the movable swing block 22 is in its natural state, the top holding portion 223 is exposed outside the second cavity 21a. When subjected to force, it retracts into the second cavity 21a. The exposed design of the top holding portion 223 facilitates the pushing of materials, and the retraction causes the sensing portion 221 to be triggered.

[0047] The working principle and usage process of this utility model:

[0048] During installation, the pin 23 passes through the through holes of both the movable swing block 22 and the longitudinal platform 21, hinges the movable swing block 22 to the longitudinal platform 21, allowing the movable swing block 22 to rotate within the second cavity 21a of the longitudinal platform 21. Then, the sensor 12 is inserted and connected to the horizontal platform 11, with the sensing end 121 of the sensor 12 placed within the first cavity 11a, until the sensing end 121 of the sensor 12 is flush with the inner wall of the first cavity 11a. Finally, the outer wall of the longitudinal platform 21 is welded to the horizontal platform 11 against the first and second abutting walls 111 and 112, thus connecting the first cavity 11a and the second cavity 21a and completing the overall installation of the sensing device. The structure is extremely simple and the cost is extremely low.

[0049] When using, please refer to Figure 1 and Figure 2 Multiple sensing devices are respectively bolted to the worktable surface of the drawing die, see [reference]. Figure 3 and Figure 5 At this time, the movable swing block 22 is in a natural, unforced state, and the top holding part 223 of the movable swing block 22 is exposed outside the second cavity 21a; then, the drawing die begins to work, see Figure 6 The material descends vertically and acts on the top holding part 223 of the movable swing block 22. The movable swing block 22 begins to rotate from the second cavity 21a into the first cavity 11a until the sensing part 221 of the movable swing block 22 corresponds to the sensing end 121 of the sensor 12 and triggers a signal. Finally, the sensor 12 senses that the material has reached the predetermined position, the drawing die stops, and the material can be removed from the drawing die. The external force on the movable swing block 22 disappears, and it returns to the second cavity 21a under its own weight. Therefore, in this utility model, the longitudinal platform 21 and the transverse platform 11 are fixedly connected, so that the first cavity 11a and the second cavity 21a are connected to form a cavity structure for the movement of the movable swing component. There is no need to reserve external clearance space, the overall volume is reduced, and the space utilization rate is improved. Secondly, the sensing end 121 is built into the first cavity 11a, avoiding exposure and reducing the probability of interference from production debris, which would affect the sensing accuracy and effectively reduce the occurrence of production accidents.

[0050] Second Embodiment

[0051] The difference between the second embodiment and the first embodiment is that the sensing part 221 is configured as a delayed sensing part 221, and the surface of the delayed sensing part 221 is formed with an arc-shaped delayed trajectory (not shown) extending along the rotation direction of the movable pendulum 22. When the movable pendulum 22 rotates to the end of the delayed trajectory, the sensor receives a delayed trigger signal.

[0052] Therefore, in this embodiment, in order to avoid the sensor 12 being accidentally triggered by external debris such as flying iron filings and thus reduce the probability of being interfered with by production debris, the design of the delayed sensing part 221 can effectively ensure that the sensor 12 is triggered only after the movable ornament has rotated for a certain time and distance. In other words, the proximity sensor will only send a signal after the extended sensing part 221 is aligned with the sensing end 121 of the sensor 12 for a certain time.

[0053] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.

Claims

1. An anti-interference material sensing device for a drawing die, used to sense whether the material has reached a predetermined position, characterized in that: It includes a sensing component and a swing mechanism fixedly connected to the side of the sensing component; wherein, A sensing component includes a horizontally extending platform and a sensor disposed on the outer wall of the platform. The side opening of the platform has a first cavity recessed therein. The sensor is inserted and connected to the platform such that the sensing end of the sensor is placed in the first cavity. The swing mechanism includes a longitudinally extending platform and a movable swing block built into a second cavity at the bottom of the platform; the movable swing block is rotatably connected to the platform via a pin, and the side wall of the platform is fixedly connected to the side opening of the platform, so that the first cavity and the second cavity are connected. In its natural state, the movable pendulum is partially exposed outside the second cavity. When the exposed part is subjected to the force of the material, it can rotate from the second cavity into the first cavity, so that the sensing part on the outer surface of the movable pendulum corresponds to the sensing end of the sensor and triggers a signal. After the external force disappears, it returns to the second cavity under its own weight.

2. The anti-interference material sensing device for a drawing die as described in claim 1, characterized in that: The sensing part is configured as a time-delay sensing part, and the surface of the time-delay sensing part is formed with an arc-shaped time-delay trajectory extending along the rotation direction of the movable pendulum. When the movable pendulum rotates to the end of the time-delay trajectory, the sensor receives a time-delay trigger signal.

3. The anti-interference material sensing device for a drawing die as described in claim 1, characterized in that: The side opening of the horizontal platform is also recessed to form a first abutting wall and a second abutting wall, which are adapted to the shape of the outer wall surface of the vertical platform. The vertical platform abuts against the first abutting wall and the second abutting wall and is welded and fixed to the horizontal platform.

4. The anti-interference material sensing device for a drawing die as described in claim 1, characterized in that: The outer wall of the cross platform has a through hole that communicates with the first cavity. The sensor is inserted into the through hole and connected to the cross platform, and the end face of the sensing end of the sensor is flush with the inner wall surface of the first cavity.

5. The anti-interference material sensing device for a drawing die as described in claim 1, characterized in that: The distance between the two inner sidewalls of the second cavity is less than or equal to the distance between the two inner sidewalls of the first cavity; when the movable swing block enters the first cavity from the second cavity and corresponds to the sensing end of the sensor, the outer sidewall of the movable swing block forms a clearance gap relative to the two inner sidewalls of the second cavity.

6. The anti-interference material sensing device for a drawing die as described in claim 1, characterized in that: The exposed portion of the movable pendulum block is configured as a top support, which is located on the outer wall surface of the movable pendulum block. When the movable pendulum block is in its natural state, the top support is exposed outside the second cavity, and when subjected to force, it retracts into the second cavity.

7. The anti-interference material sensing device for a drawing die as described in claim 1, characterized in that: The hinge end of the movable pendulum and the sensing part are diagonally arranged at both ends of the movable pendulum, with the hinge end located at the upper part of the second cavity and the sensing part located at the lower part of the movable pendulum, so that the sensing part hangs down into the second cavity under the action of gravity in a natural state.

8. The anti-interference material sensing device for a drawing die as described in claim 1, characterized in that: The side opening of the horizontal platform is located on the right end face of the horizontal platform, and the concave depth of the first cavity is not less than one-quarter of the transverse length of the horizontal platform; the horizontal platform is provided with at least one weight-reducing hole at intervals on the left side of the first cavity, and the weight-reducing hole extends through the horizontal platform perpendicularly to the platform surface.

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