A sheet material support device for a mold

Abstract

This utility model provides a sheet metal supporting device for molds, comprising a support plate, a support plate connecting seat, a counterweight, and a magnetic attraction assembly. The support plate connecting seat is vertically fixed on a punch seat. The support plate is rotatably connected to the support plate connecting seat. The support plate has a supporting surface that can extend horizontally from the front side of the support plate connecting seat or retract as the support plate rotates. The counterweight is fixedly connected to the end of the support plate away from the supporting surface and is located on the rear side of the support plate connecting seat. The counterweight has an abutment surface that can contact the rear side of the support plate connecting seat. The abutment surface has a first groove recessed into the counterweight, and the bottom of the first groove has a threaded hole penetrating the counterweight. The magnetic attraction assembly includes a magnet and an adjusting screw. The magnet is movably disposed in the first groove, and the adjusting screw is threadedly connected to the threaded hole, with one end fixedly connected to the magnet. This utility model overcomes the problems of unreliable reset, inconvenient adjustment, and poor versatility of traditional mold sheet metal supporting devices.

Description

Technical Field

[0001] This utility model belongs to the field of stamping die technology, specifically relating to a sheet metal support device for a die. Background Technology

[0002] In the stamping die processing, accurate positioning and stable support of the sheet metal are crucial for ensuring the quality of stamped parts. Currently, most common sheet metal support devices on the market adopt a spring-reset structure, using the spring force to drive the support plate to support and reset the sheet metal. However, this type of device has significant drawbacks: firstly, the spring is constantly under compression or tension, making it prone to fatigue failure, leading to decreased support plate reset accuracy or even failure to reset, requiring frequent spring replacements, increasing maintenance costs and downtime; secondly, the spring force cannot be flexibly adjusted according to the weight of the sheet metal, requiring the replacement of springs with different spring forces when processing sheet metal of different specifications, resulting in cumbersome operation and poor adaptability.

[0003] Therefore, there is an urgent need for a mold plate material support device that is reliable in resetting, easy to adjust, and highly versatile, in order to overcome the shortcomings of existing technologies. Utility Model Content

[0004] The purpose of this utility model is to overcome the problems of unreliable reset, inconvenient adjustment, and poor versatility of the existing mold plate material support device, and to provide a plate material support device for molds that achieves stable reset, flexible adjustment and wide compatibility through optimized structural design.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A sheet metal support device for a mold includes a support plate, a support plate connecting seat, a counterweight, and a magnetic attraction assembly. The support plate connecting seat is vertically fixed to a punch seat. The support plate is rotatably connected to the support plate connecting seat. The support plate has a supporting surface that can extend horizontally from the front side of the support plate connecting seat or retract as the support plate rotates. The counterweight is fixedly connected to the end of the support plate away from the supporting surface and is located on the rear side of the support plate connecting seat. The counterweight has an abutment surface that can contact the rear side of the support plate connecting seat. The abutment surface has a first groove recessed into the counterweight, and the bottom of the first groove has a threaded hole penetrating the counterweight. The magnetic attraction assembly includes a magnet and an adjusting screw. The magnet is movably disposed in the first groove, and the adjusting screw is threadedly connected to the threaded hole, with one end fixedly connected to the magnet.

[0007] As a preferred embodiment of this utility model, the magnet has a cylindrical structure, the first groove is a circular groove that mates with the magnet, and the axial depth of the groove is 2 to 4 times the axial length of the magnet.

[0008] As a preferred embodiment of this utility model, the end of the adjusting screw away from the magnet is provided with a driving screw head, which is an internal hexagonal cylindrical screw head, and its outer diameter is larger than the diameter of the threaded hole.

[0009] As a preferred embodiment of this utility model, the counterweight is provided with a second groove recessed into the counterweight on the side away from the abutting surface, and the driving screw head is disposed in the second groove.

[0010] As a preferred embodiment of this utility model, a compression spring is provided between the drive screw head and the bottom of the second groove.

[0011] As a preferred embodiment of this utility model, the front side of the pallet connecting seat forms a positioning surface that abuts against the edge of the plate; the upper end of the positioning surface is connected to a guide slope or a guide arc surface.

[0012] As a preferred embodiment of this utility model, the lower end of the pallet connecting seat is connected to a guide slider, the punch seat is provided with a guide groove that slides with the guide slider, the guide slider is provided with a strip hole, and a bolt passes through the strip hole to lock the guide slider on the punch seat.

[0013] As a preferred embodiment of this utility model, the pallet is a right-angled triangle, with one right-angled side serving as the supporting surface and the other right-angled side fixedly connected to the counterweight; the counterweight is a cuboid structure, located below the rotation connection point of the pallet; when the supporting surface is horizontally arranged, the supporting surface extends forward from the front side of the pallet connecting seat, and the contact surface of the counterweight abuts against the rear side of the pallet connecting seat.

[0014] As a preferred embodiment of this utility model, there are two trays, which are symmetrically arranged on the left and right sides of the tray connecting seat.

[0015] The sheet metal support device for molds provided by this utility model has the following advantages compared with the prior art:

[0016] (1) Reliable reset: The dual reset structure of "counterweight gravity + magnetic adsorption" is adopted. Compared with the traditional spring reset, it avoids the problem of spring fatigue failure, has high reset accuracy and strong stability, and effectively extends the service life of the device.

[0017] (2) Flexible adjustment: The magnetic suction component can achieve precise adjustment of the suction force by adjusting the screw, which can be adapted to different weights of boards and has strong versatility. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0019] Figure 1 This is a perspective view of a sheet metal support device for molds provided in an embodiment of the present utility model, showing the assembly relationship of the support plate, support plate connecting seat, counterweight, magnetic suction assembly and guide slider;

[0020] Figure 2 This is a cross-sectional view of the sheet metal support device, showing the positions of the first groove, the second groove, the threaded hole, the magnet, the adjusting screw, and the compression spring inside the counterweight.

[0021] Figure 3 This is a schematic diagram of the working state of the plate material support device (the left image shows the horizontal support state, and the right image shows the retracted state), demonstrating the positional changes of each component during the rotation of the pallet.

[0022] Marked in the image:

[0023] 1. Support plate; 11. Supporting surface; 12. Pin; 2. Support plate connecting seat; 21. Positioning surface; 22. Guide slope; 23. Guide slider; 24. Guide groove; 25. Strip hole; 3. Counterweight; 31. Abutting surface; 32. First groove; 33. Threaded hole; 34. Second groove; 4. Magnetic suction assembly; 41. Magnet; 42. Adjusting screw; 43. Drive screw head; 44. Compression spring. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do 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. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] Please refer to the following: Figures 1 to 3 The sheet material support device for molds provided in the embodiments of this utility model will now be described.

[0029] The sheet material support device of this utility model embodiment includes a support plate 1, a support plate connecting seat 2, a counterweight block 3, and a magnetic suction component 4.

[0030] The pallet connecting seat 2 is vertically fixed to the punch seat of the mold. As the core support component of the device, its front side can form a positioning surface 21 that abuts against the edge of the sheet metal. The upper end of the positioning surface 21 is connected to a guide slope 22 or a guide arc surface (preferably the angle of the guide slope 22 is 45°-60°) to guide the sheet metal to slide smoothly into the positioning position and avoid collision and wear between the edge of the sheet metal and the positioning surface 21. The lower end of the pallet connecting seat 2 is also connected to a guide slider 23. The punch seat has a guide groove 24 that slides with the guide slider 23. The guide slider 23 has a strip hole 25 extending in the vertical direction. The bolt passes through the strip hole 25 to lock the guide slider 23 to the punch seat. By loosening the bolt and sliding the guide slider 23, the horizontal position of the pallet connecting seat 2 can be adjusted to adapt to different specifications of sheet metal.

[0031] Pallet 1: Rotatably connected to pallet connecting seat 2 (preferably via pin 12). Pallet 1 has a supporting surface 11 for supporting the material. This supporting surface 11 can extend or retract horizontally from the front side of pallet connecting seat 2 as pallet 1 rotates. Preferably, pallet 1 has a right-angled triangular structure, with one right-angled side serving as the supporting surface 11 and the other right-angled side fixedly connected to the counterweight 3 (by welding or bolting). Two pallets 1 are provided and symmetrically arranged on the left and right sides of pallet connecting seat 2 to form a symmetrical supporting structure, improving the stability of supporting the material and preventing tilting caused by unilateral force on the material.

[0032] Counterweight 3: Fixedly connected to the end of the pallet 1 away from the supporting surface 11 and located on the rear side of the pallet connecting seat 2, it is made of high-density metal material (such as cast iron) and has a cuboid structure. Its center of gravity is located below the rotating connection point of the pallet 1, providing the basic driving force for the pallet 1 to reset through gravity. The side of the counterweight 3 near the pallet connecting seat 2 has an abutment surface 31 that can contact the rear side of the pallet connecting seat 2. The abutment surface 31 has a first groove 32 that is recessed into the counterweight 3. The bottom of the first groove 32 has a threaded hole 33 that penetrates the counterweight 3. The side of the counterweight 3 away from the abutment surface 31 also has a second groove 34 that is recessed into the counterweight 3 to accommodate the driving component of the adjusting screw 42.

[0033] Magnetic assembly 4 includes a magnet 41 and an adjusting screw 42. The magnet 41 is movably disposed within a first groove 32, preferably a cylindrical structure. The first groove 32 is a circular groove corresponding to the magnet 41, and the axial depth of the first groove 32 is 2 to 4 times the axial length of the magnet 41 (for example, when the axial length of the magnet 41 is 20 mm, the groove depth is 40 mm to 80 mm), ensuring that the magnet 41 can move flexibly within the first groove 32. The adjusting screw 42 is threadedly connected to a threaded hole 33 at the bottom of the first groove 32, with one end... The adjusting screw 42 is fixedly connected to the magnet 41 (it can be fixed by a pin), and the other end is provided with a drive screw head 43. The drive screw head 43 is an internal hexagonal cylindrical screw head, and its outer diameter is larger than the diameter of the threaded hole 33 to prevent the adjusting screw 42 from being fully inserted into the first groove 32. The drive screw head 43 is set in the second groove 34, and a compression spring 44 is provided between the drive screw head 43 and the bottom of the second groove 34. The compression spring 44 is sleeved on the outside of the adjusting screw 42, and can form an axial preload on the adjusting screw 42 through the elastic force to prevent the adjusting screw 42 from loosening due to mold vibration.

[0034] The working principle of the sheet metal support device for molds in this embodiment of the utility model is as follows:

[0035] When the device is in its initial state, under the gravity of the counterweight 3, the supporting surface 11 of the pallet 1 remains horizontal and extends forward from the front side of the pallet connecting seat 2. At the same time, the contact surface 31 of the counterweight 3 is in contact with the rear side of the pallet connecting seat 2. The magnet 41 in the magnetic attraction assembly 4 is attracted to the rear side of the pallet connecting seat 2 under the positioning of the adjusting screw 42, which further enhances the stability of the pallet 1. At this time, the plate can be placed on the supporting surface 11, and the edge positioning is achieved by the positioning surface 21 of the pallet connecting seat 2.

[0036] When the die starts stamping, the upper die moves downward and applies pressure to the sheet metal. The sheet metal drives the support plate 1 to rotate downward around the rotating connection point. The supporting surface 11 gradually changes from a horizontal state to a vertical state. During this process, the counterweight 3 rotates synchronously with the support plate 1. Its contact surface 31 separates from the rear side of the support plate connecting seat 2. The magnet 41 moves with the counterweight 3 and disengages from the rear side of the support plate connecting seat 2. When the stamping is completed, the upper die moves upward, the pressure on the sheet metal disappears, and under the gravity of the counterweight 3, the support plate 1 rotates in the opposite direction to reset. At the same time, the magnet 41 is attracted to the rear side of the support plate connecting seat 2 again, helping the support plate 1 to quickly return to a horizontal supporting state, waiting for the next stamping.

[0037] If it is necessary to adapt to plates of different weights, the drive screw head 43 of the adjusting screw 42 can be turned by using an Allen wrench to make the adjusting screw 42 move axially along the threaded hole 33, thereby driving the magnet 41 to move in the first groove 32, changing the initial adsorption distance between the magnet 41 and the rear side of the support plate connecting seat 2, adjusting the magnitude of the adsorption force, and ensuring that the reset force of the support plate 1 matches the weight of the plate.

[0038] In summary, the sheet metal support device for molds that implements the embodiments of this utility model has the following beneficial effects:

[0039] (1) Reliable reset: The dual reset structure of "counterweight 3 gravity + magnetic component 4 adsorption" is adopted. Compared with the traditional spring reset, it avoids the problem of spring fatigue failure, has high reset accuracy and strong stability, and effectively extends the service life of the device.

[0040] (2) Flexible adjustment: The magnetic suction component 4 can achieve precise adjustment of the adsorption force by adjusting the screw 42, which can be adapted to different weights of boards and has strong versatility.

[0041] (3) Precise positioning: The positioning surface 21 of the pallet connecting seat 2, together with the guide slope 22, ensures that the plate is positioned quickly and accurately, reduces stamping defects caused by plate offset, and improves the product qualification rate.

[0042] (4) Stable structure: The symmetrical double support plate 1 structure enhances the support stability of the plate and avoids the plate tilting; the compression spring 44 pre-tightens the adjusting screw 42 to prevent adjustment failure caused by mold vibration.

[0043] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A sheet metal support device for molds, characterized in that, The device includes a tray, a tray connecting seat, a counterweight, and a magnetic attraction assembly. The tray connecting seat is vertically fixed to a punch seat. The tray is rotatably connected to the tray connecting seat. The tray has a supporting surface that can extend horizontally from the front side of the tray connecting seat or retract as the tray rotates. The counterweight is fixedly connected to the end of the tray away from the supporting surface and is located on the rear side of the tray connecting seat. The counterweight has an abutment surface that can contact the rear side of the tray connecting seat. The abutment surface has a first groove recessed into the counterweight, and the bottom of the first groove has a threaded hole penetrating the counterweight. The magnetic attraction assembly includes a magnet and an adjusting screw. The magnet is movably disposed in the first groove, and the adjusting screw is threadedly connected to the threaded hole, with one end fixedly connected to the magnet. The magnet has a cylindrical structure, and the first groove is a circular groove that mates with the magnet. The axial depth of the groove is 2 to 4 times the axial length of the magnet. The lower end of the support plate connecting seat is connected to a guide slider. The punch seat is provided with a guide groove that slidably mates with the guide slider. The guide slider has a strip hole, and a bolt passes through the strip hole to lock the guide slider onto the punch seat.

2. The sheet metal support device for a mold as described in claim 1, characterized in that, The adjusting screw has a drive screw head at the end away from the magnet. The drive screw head is an internal hexagonal cylindrical screw head, and its outer diameter is larger than the diameter of the threaded hole.

3. The sheet metal support device for a mold as described in claim 2, characterized in that, The counterweight has a second groove recessed into the counterweight on the side away from the contact surface, and the drive screw is disposed in the second groove.

4. The sheet metal support device for a mold as described in claim 3, characterized in that, A compression spring is provided between the drive screw head and the bottom of the second groove.

5. The sheet metal support device for a mold as described in claim 1, characterized in that, The front side of the pallet connecting seat forms a positioning surface that abuts against the edge of the plate; the upper end of the positioning surface is connected to a guide slope or a guide arc surface.

6. The sheet metal support device for a mold as described in any one of claims 1 to 5, characterized in that, The pallet is a right-angled triangle, with one right-angled side serving as the supporting surface and the other right-angled side fixedly connected to the counterweight. The counterweight is a cuboid structure and is located below the rotation connection point of the pallet. When the supporting surface is horizontally arranged, it extends forward from the front side of the pallet connecting seat, and the contact surface of the counterweight abuts against the rear side of the pallet connecting seat.

7. The sheet metal support device for a mold as described in claim 6, characterized in that, Two trays are provided and are symmetrically arranged on the left and right sides of the tray connecting seat.

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