A steel plate bending device for processing metal yield type damper
By designing a steel plate bending device including supporting racks, lift rods, sliding racks, and positioning parts, the problem of inconvenient positioning of the steel plate of one -quarter of the steel plate has been solved, and the automatic positioning and bending Product quality.
Patent Information
- Application Number
- CN202411317727.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2044-09-20
AI Technical Summary
During the processing of metal yield dampers, one-quarter of the steel plate is inconvenient to position, resulting in cumbersome operation and may cause damage to the steel plate.
A steel plate bending device including a support frame, a lifting rod, a detachable top rod, a sliding frame, edge and inner support blocks, positioning parts and adjustment parts is designed. Through the synergy of these components, automatic positioning and bending of steel plates is achieved, eliminating manual measurement and marking.
This device enables the one -quarter of the steel plate to automatically locate, simplifies the processing process, avoids damage to the steel plate, and improves the effect of the damper.
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Figure CN118832012B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of plate bending, in particular to a steel plate bending device for processing a metal yield type damper. Background Art
[0002] As attached Figure 1 The figure shows a metal yield damper, in the middle of which is a ring-shaped workpiece, which is made by bending a steel plate twice. During the processing, a marking line is made at one quarter of the steel plate with a marking needle, and the marking position is placed at the bend to complete the processing of the workpiece.
[0003] However, when marking, it is necessary to first measure one quarter of the steel plate with a measuring ruler, and then mark it with a marking needle and a steel ruler. The operation is cumbersome, and the marking needle is made of metal, which will cause certain damage to the steel plate when marking.
[0004] To this end, we propose a steel plate bending device for processing metal yield type dampers. Summary of the invention
[0005] The object of the present invention is to provide a steel plate bending device for processing a metal yield type damper, so as to solve the problem of inconvenient steel plate positioning mentioned in the above background technology.
[0006] To achieve the above object, the present invention provides the following technical solution: a steel plate bending device for processing a metal yield type damper, comprising a support frame, a lifting rod is installed on the inner side of the support frame, a detachable top rod is installed on the top of the lifting rod, a forming port is installed on the top of the support frame, and further comprising:
[0007] Two sliding frames, the two sliding frames are slidably mounted on both sides of the supporting frame;
[0008] The edge support block and the inner support block are both installed on the outer side of the sliding frame. When the edge of the steel plate is aligned with the edge support block, the inner support block is located at one quarter of the steel plate.
[0009] The first positioning member and the second positioning member, the first positioning member is installed on the edge support block, and the second positioning member is installed on the inner support block. During the first bending, the first positioning member is activated, and during the second bending, the second positioning member is activated. When the first positioning member and the second positioning member are activated, one quarter of the steel plate is positioned on the top of the top rod;
[0010] The adjusting member is installed between the sliding frame and the supporting frame. The adjusting member moves outward when the steel plate is bent, so that the steel plate does not contact the edge supporting block and the inner supporting block during the bending process.
[0011] Among them, the first positioning member is fixed at the bottom of the edge support block, the first positioning member is a first positioning rod, the second positioning member is composed of a second positioning rod and a positioning groove, the second positioning rod is fixed at the end of the inner support block, and the positioning groove is opened on the outside of the support frame.
[0012] Among them, a lifting frame is fixedly installed on the top of the lifting rod, a placement groove is opened on the top of the lifting frame, the top rod is engaged in the placement groove, and limiting wheels are fixedly installed on both sides of the lifting frame, and the limiting wheels are slidably installed on the inner side of the support frame.
[0013] Among them, extrusion wheels are rotatably installed on both sides of the forming port, rollers are installed at the bottom of the sliding frame, tracks are slidably installed at the bottom of the rollers, and the tracks are installed on both sides of the supporting frame.
[0014] The first screw is rotatably mounted inside the sliding frame, and two threads with different pitches are arranged on the first screw, and the ratio of the two pitches is two to one. The edge support block is threadedly connected to the large pitch of the first screw, and the inner support block is threadedly connected to the small pitch of the first screw. Strip holes are opened on both sides of the sliding frame, and the edge support block and the inner support block are both slidably mounted in the strip holes.
[0015] A balancing mechanism is installed in the middle position of the sliding frame, and the balancing mechanism detects whether the steel plate is located on the top of the top rod.
[0016] Among them, the balancing mechanism includes two mounting seats fixed on both sides of the sliding frame, the mounting seats are located on both sides of the top rod, a pressure sensor is fixedly installed inside each mounting seat, and a detection wheel is slidably installed inside the mounting seat, and the bottom of the detection wheel is against the pressure sensor.
[0017] Among them, support parts are rotatably installed at both ends of the lifting frame to support the steel plate. A limiting part is installed at the bottom of the support part to limit the rotation of the support part. A trigger part is installed on the outside of the lifting frame. When the steel plate moves to the bottom after forming, the trigger part drives the limiting part to release the limit of the support part.
[0018] Wherein, the support member comprises a support rod rotating on the inner side of the lifting frame, and a support wheel is installed on the top of the support rod;
[0019] The limiting member comprises a limiting gear and a retractable limiting rack. The limiting gear is fixed to the end of the support rod, the limiting rack is installed on the inner side of the lifting frame, and the top of the limiting rack is meshed with the limiting gear.
[0020] Among them, sliding rods are slidably installed on both sides of the limit rack, the bottom of the sliding rod is fixed on the inner side of the lifting frame, the outer side of the sliding rod is sleeved with a spring, and a pressing plate is fixed between the two limit racks;
[0021] The triggering member comprises a through hole formed on the side of the lifting frame, a triggering rod is slidably mounted inside the through hole, and the end of the triggering rod is mounted on the bottom of the track.
[0022] The adjusting member includes an adjusting rack fixed on the outside of the lifting frame, the top of the adjusting rack is meshed with an adjusting gear, the adjusting gear is rotatably mounted on the inner side of the supporting frame, a second screw is mounted on the shaft end of the adjusting gear, and the second screw is threadedly connected to the bottom of the track;
[0023] A cross bar is installed on the side of the track, a vertical bar is fixedly installed on the top of the support frame, and the track is slidably installed in the vertical bar through the cross bar.
[0024] The present invention has at least the following beneficial effects:
[0025] During the initial bending, the distance between the edge support block and the inner support block is one-fourth of the steel plate, and the sliding steel plate can complete the positioning of the steel plate. During the secondary bending, when the first positioning piece is against the short side of the workpiece, the other quarter of the other end of the steel plate can be positioned. Therefore, there is no need to measure and mark the steel plate during the overall operation. It is more convenient to use and will not cause damage to the steel plate, thereby improving the use effect of the subsequent damper. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of the explosion structure of a metal yield type damper;
[0027] Figure 2 It is a schematic diagram of the overall first-view structure of the present invention;
[0028] Figure 3 It is a schematic diagram of the overall structure of the present invention from a second viewing angle;
[0029] Figure 4 It is a front view structural schematic diagram of the present invention;
[0030] Figure 5 It is a schematic diagram of the side cross-sectional structure of the present invention;
[0031] Figure 6 It is a schematic diagram of the track end structure of the present invention;
[0032] Figure 7 It is a schematic diagram of the middle structure of the track of the present invention;
[0033] Figure 8 This is a schematic diagram of the lifting frame structure of the present invention;
[0034] Fig. 9 This is a schematic diagram of the support member installation structure of the present invention;
[0035] Fig.10 It is a schematic diagram of the structure of the limiter of the present invention;
[0036] Fig.11 It is a structural schematic diagram of the workpiece processing steps of the present invention.
[0037] In the figure: 1, support frame; 2, lifting rod; 3, top rod; 4, forming mouth; 5, sliding frame; 6, edge support block; 7, inner support block; 8, first positioning member; 9, second positioning member; 10, second positioning rod; 11, positioning groove; 12, lifting frame; 13, placement groove; 14, limiting wheel; 15, extrusion wheel; 16, roller; 17, track; 18, first screw; 19, strip hole; 20, balancing mechanism; 21, Mounting seat; 22. Pressure sensor; 23. Detection wheel; 24. Support member; 25. Limit member; 26. Trigger member; 27. Support rod; 28. Support wheel; 29. Limit rack; 30. Limit gear; 31. Sliding rod; 32. Spring; 33. Pressing plate; 34. Perforation; 35. Trigger rod; 36. Adjustment member; 37. Adjustment rack; 38. Adjustment gear; 39. Second screw; 40. Cross bar; 41. Vertical bar. DETAILED DESCRIPTION
[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0039] Embodiment 1
[0040] See also Figures 2 to 11 The present invention provides a technical solution: a steel plate bending device for processing a metal yield type damper, comprising: a support frame 1, a lifting rod 2 is fixedly installed on the inner side of the support frame 1, in this embodiment, the lifting rod 2 is realized by a hydraulic rod, a lifting frame 12 is fixedly installed on the top of the lifting rod 2, and a placement groove 13 is opened on the top of the lifting frame 12, a top rod 3 is engaged inside the placement groove 13, and a forming mouth 4 is fixedly installed on the top of the support frame 1.
[0041] Through the above technical scheme, one quarter of the steel plate to be bent is placed between the push rod 3 and the forming mouth 4, and the lifting rod 2 moves upward to squeeze the steel plate so that it is squeezed into the forming mouth 4, and the straight steel plate is bent into a "J" shape. After the initial bending, the position of the steel plate is continued to be adjusted, and one quarter of the other end of the steel plate is placed between the push rod 3 and the forming mouth 4 to continue bending, so that the steel plate is bent into a ring-shaped structure. When the steel plate is bent into a ring, the push rod 3 can be removed from one side of the lifting frame 12, so that the workpiece can be taken out of the lifting frame 12.
[0042] It should be added that in order to facilitate the removal of the bent steel plate from the forming port 4, extrusion wheels 15 are rotatably installed on both sides of the forming port 4. After the steel plate is squeezed into the forming port 4, the formed steel plate can be more conveniently taken out through the rolling effect of the extrusion wheels 15. In addition, limiting wheels 14 are fixedly installed at both ends of the lifting frame 12. The limiting wheels 14 are slidably installed on the inner side of the support frame 1. When the lifting rod 2 drives the lifting frame 12 to move, the limiting wheels 14 slide synchronously on the support frame 1. The limiting wheels 14 can limit the movement of the lifting frame 12 so that it always maintains vertical movement.
[0043] A sliding frame 5 is slidably installed on the inner side of the support frame 1, that is, first, a vertical rod 41 is fixedly installed on the support frame 1, a horizontal rod 40 is installed on the side of the vertical rod 41, and a track 17 is fixed on the end of the horizontal rod 40, and a roller 16 is fixedly installed on the bottom of the sliding frame 5, and the sliding frame 5 can slide in the track 17 through the roller 16 at the bottom.
[0044] Edge support blocks 6 and inner support blocks 7 are installed at both ends of the sliding frame 5. The edge support blocks 6 and the inner support blocks 7 are used to place the steel plates. At the same time, the distance between the edge support blocks 6 and the inner support blocks 7 is one-fourth of the steel plates. When a steel plate of a specific length is placed on the edge support blocks 6 and the inner support blocks 7, when the end of the steel plate is aligned with the edge support block 6, the position of the inner support block 7 is one-fourth of the steel plate. Therefore, when positioning the steel plate, it is only necessary to ensure that the edge of the steel plate is aligned with the edge support block 6, and there is no need to mark the steel plate.
[0045] A first positioning member 8 is installed at the bottom of the edge support block 6. In this embodiment, the first positioning member 8 is a first positioning rod, and a second positioning member 9 is installed between the inner support block 7 and the support frame 1. The second positioning member 9 is composed of a second positioning rod 10 and a positioning groove 11, wherein the second positioning rod 10 is fixed to the outer side of the inner support block 7, and the positioning groove 11 is opened on the outer side of the support frame 1, and the positioning groove 11 and the top rod 3 are maintained on the same straight line.
[0046] When the sliding frame 5 is fully engaged, the sliding frame 5 will not be pushed when the sliding frame 5 is pushed continuously. At this time, one-fourth of the steel plate is just above the top rod 3, so as to realize the positioning of the steel plate. After positioning, preliminary bending is performed. After the preliminary bending, the bent steel plate is placed on the top of the edge support block 6 and the inner support block 7 again. When the short side after the preliminary bending is formed contacts with the first positioning rod, one-fourth of the other end of the steel plate is also just at the top of the top rod 3. There is no need to mark the steel plate. When using it, you only need to slide the steel plate, which is more convenient to operate and will not cause damage to the steel plate, thereby improving the use effect of the subsequent damper.
[0047] Since the steel plate will change from a horizontal state to a vertical state when it is bent, the edge support block 6 and the inner support block 7 supporting the steel plate will hinder the change of the state of the steel plate. Therefore, an adjustment member 36 is installed between the track 17 and the support frame 1. The adjustment member 36 will gradually move away from the steel plate during the rising process of the lifting frame 12, thereby moving away from the edge support block 6 and the inner support block 7, providing space for the change of the state of the steel plate.
[0048] Specifically, first, the vertical rod 41 and the cross rod 40 are slidably connected, and secondly, an adjusting rack 37 is fixedly installed on the outer side of the lifting frame 12, and an adjusting gear 38 is meshed on the top of the adjusting rack 37, and the adjusting gear 38 is rotatably installed on the inner side of the support frame 1, and at the same time, a second screw 39 is fixedly installed on the axial end of the adjusting gear 38, and the second screw 39 is threadedly connected to the bottom of the track 17. Therefore, when the lifting frame 12 moves upward, it will drive the adjusting rack 37 to move upward synchronously, and when the adjusting rack 37 moves upward, it meshes with the adjusting gear 38, so that the adjusting gear 38 rotates, and the adjusting gear 38 synchronously drives the second rotation during the rotation process, and when the second screw 39 rotates, it cooperates with the track 17 thread, so that the cross rod 40 on the track 17 slides outward on the vertical rod 41, and the edge support block 6 and the inner support block 7 are away from the steel plate.
[0049] Embodiment 2
[0050] In the embodiment, the steel plate is first placed on the edge support block 6 and the inner support block 7, but as the lifting frame 12 moves upward, the track 17 will move away from the steel plate, and the steel plate will also be separated from the edge support block 6, that is, the steel plate will not play a supporting role. The existing method generally requires two workers to limit the two ends of the steel plate with tools to keep the steel plate balanced, which is not convenient and laborious.
[0051] In the present embodiment, support members 24 are rotatably installed at both ends of the lifting frame 12. The support members 24 can always support the steel plate before the steel plate contacts the forming mouth 4. At this time, the rotatable support members 24 are restricted by the limit members 25 and will not rotate. When the steel plate moves to the bottom of the forming mouth 4, the limit members 25 will be triggered by the trigger member 26 installed on one side of the lifting frame 12, so that the limit members 25 contact and restrict the support members 24. At this time, the support members 24 can fall under the action of their own gravity, ensuring support without affecting the deformation space of the steel plate.
[0052] Specifically, the support member 24 includes a support rod 27 that rotates on the inner side of the lifting frame 12, and a support wheel 28 is fixedly installed on the top of the support rod 27. A limit gear 30 is fixedly installed at one end of the support rod 27 close to the lifting frame 12. The bottom of the limit gear 30 engages with a limit rack 29, and slide rods 31 are slidably installed on both sides of the limit rack 29, and a spring 32 is sleeved on the outer side of the slide rod 31. When supporting the steel plate, the limit rack 29 and the limit rack 29 engage with each other to limit the position of the limit gear 30 and prevent it from rotating.
[0053] A pressing plate 33 is installed between the limiting racks 29 at both ends, and a through hole 34 is opened on the side of the lifting frame 12. A trigger rod 35 is slidably installed inside the through hole 34, and the end of the trigger rod 35 is fixed to the end of the second screw 39. Therefore, when the lifting frame 12 drives the steel plate to move upward, the pressing plate 33 gradually contacts the trigger rod 35. When the steel plate contacts the forming port 4, the trigger rod 35 will generate a certain pressure on the pressing plate 33. Under the action of pressure, the pressing plate 33 drives the limiting rack 29 to slide downward on the sliding rod 31, thereby realizing the separation of the limiting gear 30 and the limiting rack 29. When the limiting gear 30 is not restricted by the limiting rack 29, the support rod 27 and the support wheel 28 rotate downward under the action of their own gravity and no longer support the steel plate.
[0054] Embodiment 3
[0055] Before positioning the steel plate, it is necessary to ensure that the edge of the steel plate is aligned with the edge support block 6. However, due to the different sizes of the dampers, the lengths of the steel plates required to be bent are also different. When the lengths of the steel plates are different, it is impossible to align the steel plates with the edge support block 6. Therefore, in order to meet the bending needs of steel plates of more lengths, a balancing mechanism 20 is installed in the middle of the track 17. The balancing mechanism 20 can position the midpoint of the steel plate above the top rod 3, and the distance between the edge support block 6 and the inner support block 7 can be adjusted.
[0056] Specifically, the balancing mechanism 20 includes a mounting base 21 fixed on the inner side of the track 17, a pressure sensor 22 is fixedly installed inside the mounting base 21, and a detection wheel 23 is slidably installed inside the mounting base 21. The detection wheel 23 is located on both sides of the lifting frame 12, and the bottom of the detection wheel 23 is located at the top of the pressure sensor 22 and is against each other. Therefore, when the steel plate is placed on the detection wheel 23, the detection wheels 23 on both sides will detect the pressure. When the steel plate is in an inclined state, the value of the pressure sensor 22 on one side will be higher than the value of the pressure sensor 22 on the other side. At this time, the operator only needs to adjust the steel plate according to the values of the pressure sensors 22 on both sides until the difference in the values of the pressure sensors 22 on both sides is within a small range.
[0057] Secondly, a first screw rod 18 is rotatably installed inside the sliding frame 5. The first screw rod 18 is provided with two threads with different pitches, and the ratio between the pitches is two to one. The edge support block 6 is threadedly connected to the large pitch, while the inner support block 7 is connected to the small pitch. At the same time, a strip hole 19 is opened on the side of the sliding frame 5, and the edge support block 6 and the inner support block 7 are both slidably installed in the strip hole 19.
[0058] Through the above technical solution, when the length of the steel plate increases, the midpoint of the steel plate is aligned with the top of the top rod 3, and the edge support block 6 is still located on the inner side of the edge of the steel plate. At this time, it is only necessary to rotate the first screw 18. When the first screw 18 rotates, it will drive the edge support block 6 and the inner support block 7 to move synchronously. When the edge support block 6 moves to the edge of the steel plate, the inner support block 7 also moves to one-fourth of the steel plate, thereby being able to meet the bending requirements of steel plates of different lengths.
[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A steel plate bending device for processing a metal yield type damper, comprising a support frame (1), a lifting rod (2) is installed on the inner side of the support frame (1), a detachable top rod (3) is installed on the top of the lifting rod (2), and a forming port (4) is installed on the top of the support frame (1), characterized in that: Also includes: Two sliding frames (5), the two sliding frames (5) being slidably mounted on two sides of the support frame (1) respectively; An edge support block (6) and an inner support block (7), wherein the edge support block (6) and the inner support block (7) are both mounted on the outside of the sliding frame (5), and when the edge of the steel plate is aligned with the edge support block (6), the inner support block (7) is located at one quarter of the steel plate; a first positioning member (8) and a second positioning member (9), wherein the first positioning member (8) is mounted on the edge support block (6), and the second positioning member (9) is mounted on the inner support block (7); An adjusting member (36), wherein the adjusting member (36) is installed between the sliding frame (5) and the supporting frame (1); The first positioning member (8) is fixed to the bottom of the edge support block (6), the first positioning member (8) is a first positioning rod, the second positioning member (9) is composed of a second positioning rod (10) and a positioning groove (11), the second positioning rod (10) is fixed to the end of the inner support block (7), and the positioning groove (11) is provided on the outside of the support frame (1); A lifting frame (12) is fixedly mounted on the top of the lifting rod (2), a placement groove (13) is provided on the top of the lifting frame (12), the top rod (3) is engaged in the placement groove (13), and limiting wheels (14) are fixedly mounted on both sides of the lifting frame (12), and the limiting wheels (14) are slidably mounted on the inner side of the support frame (1); The adjusting member (36) comprises an adjusting rack (37) fixed to the outside of the lifting frame (12), the top of the adjusting rack (37) is meshed with an adjusting gear (38), the adjusting gear (38) is rotatably mounted on the inside of the supporting frame (1), a second screw (39) is mounted on the shaft end of the adjusting gear (38), and the second screw (39) is threadedly connected to the bottom of the track (17); A cross bar (40) is installed on the side of the track (17), a vertical bar (41) is fixedly installed on the top of the support frame (1), and the track (17) is slidably installed in the vertical bar (41) through the cross bar (40).
2. The steel plate bending device for processing a metal yield type damper according to claim 1, characterized in that: Extrusion wheels (15) are rotatably mounted on both sides of the forming opening (4), a roller (16) is mounted on the bottom of the sliding frame (5), a track (17) is slidably mounted on the bottom of the roller (16), and the track (17) is mounted on both sides of the support frame (1).
3. The steel plate bending device for processing a metal yield type damper according to claim 1, characterized in that: A first screw rod (18) is rotatably mounted inside the sliding frame (5), the first screw rod (18) being provided with two threads with different pitches, and the ratio of the two pitches being two to one, the edge support block (6) being threadedly connected to the large pitch of the first screw rod (18), the inner support block (7) being threadedly connected to the small pitch of the first screw rod (18), strip holes (19) being provided on both sides of the sliding frame (5), the edge support block (6) and the inner support block (7) being slidably mounted in the strip holes (19); A balancing mechanism (20) is installed at the middle position of the sliding frame (5), and the balancing mechanism (20) detects whether the midpoint of the steel plate is located at the top of the top rod (3).
4. The steel plate bending device for processing a metal yield type damper according to claim 3, characterized in that: The balancing mechanism (20) comprises two mounting seats (21) fixed on both sides of the sliding frame (5), the mounting seats (21) being located on both sides of the top rod (3), a pressure sensor (22) being fixedly mounted inside each mounting seat (21), a detection wheel (23) being slidably mounted inside the mounting seat (21), and the bottom of the detection wheel (23) being in contact with the pressure sensor (22).
5. The steel plate bending device for processing a metal yield type damper according to claim 4, characterized in that: Support members (24) are rotatably mounted at both ends of the lifting frame (12), the support members (24) supporting the steel plate, a limiting member (25) is mounted at the bottom of the support member (24), the limiting member (25) limiting the rotation of the support member (24), and a trigger member (26) is mounted on the outer side of the lifting frame (12), when the steel plate moves to the bottom of the forming opening (4), the trigger member (26) drives the limiting member (25) to move to release the limiting position of the support member (24).
6. The steel plate bending device for processing a metal yield type damper according to claim 5, characterized in that: The support member (24) comprises a support rod (27) which rotates inside the lifting frame (12), and a support wheel (28) is installed on the top of the support rod (27); The limiting member (25) comprises a limiting gear (30) and a retractable limiting rack (29); the limiting gear (30) is fixed to the end of the support rod (27); the limiting rack (29) is installed on the inner side of the lifting frame (12); and the top of the limiting rack (29) is meshed with the limiting gear (30).
7. The steel plate bending device for processing a metal yield type damper according to claim 6, characterized in that: Sliding rods (31) are slidably mounted on both sides of the limiting rack (29); the bottom of the sliding rod (31) is fixed to the inner side of the lifting frame (12); a spring (32) is sleeved on the outer side of the sliding rod (31); and a pressing plate (33) is fixed between the two limiting racks (29); The trigger member (26) comprises a through hole (34) opened on the side of the lifting frame (12), a trigger rod (35) is slidably mounted inside the through hole (34), and an end of the trigger rod (35) is mounted on the bottom of the track (17).
Citation Information
Patent Citations
Hoop machining bending equipment convenient to clean
CN219425325U
Curtain track width fixing device
CN220942721U