Steel belt uncoiling device for steel furniture production

Abstract

The invention relates to the technical field of metal strip winding processing, and particularly discloses a steel strip uncoiling device for steel furniture production, which comprises a machine body, a winding mechanism and a guide mechanism are arranged on the machine body, and the guide mechanism comprises a guide assembly I and a guide assembly II; the first guiding assembly comprises a connecting piece, a first guiding piece, an adjusting piece and an adjusting structure, the connecting piece is fixed to the upper end of the adjusting piece, an adjusting groove is formed in the adjusting piece, the first guiding piece is in longitudinal sliding fit with the adjusting groove and is in rotating fit with the bottom of the adjusting groove, and the adjusting structure is connected with the connecting piece and the first guiding piece at the same time. The adjusting structure pushes the first guide part to move downwards along the adjusting groove and rotate around the bottom of the adjusting groove. The second guide assembly comprises a second guide part and an elastic part, the lower end of the elastic part is hinged relative to the machine body, the upper end of the elastic part elastically abuts against the bottom of the second guide part, and the tail end of the steel belt penetrates through the position between the first guide part and the second guide part.

Description

Technical Field

[0001] The invention relates to the technical field of metal strip winding processing, and in particular to a steel strip unwinding device for producing steel furniture. Background Art

[0002] Steel strips have strong structural properties and can provide additional support and stability. Therefore, they are widely used in furniture such as office chairs, filing cabinets, and bookshelves to improve the load-bearing capacity and durability of furniture. In the production process of such furniture, the steel strips need to be wound and unwound with the help of an uncoiler. The steel strips are usually in a relatively loose state when placed on the reel. In order to avoid the loose steel strips affecting the subsequent processing accuracy, the steel strips need to be wound into a tight state.

[0003] In order to facilitate the rapid winding of steel strip, the patent document with authorization announcement number CN118002644B discloses a stainless steel strip coil uncoiler, including an uncoiler main body, a coil pressing assembly installed on one side of the uncoiler main body, and a reel rotatably connected to one end of the uncoiler main body, a transmission gear disk is fixed on the end of the reel close to the uncoiler main body, a tightening structure is fixed on the side of the uncoiler main body away from the coil pressing assembly, and an adjustment structure is fixed on one side of the tightening structure, and the steel coil is tightened inward by counterclockwise rotation of the reel, the transmission gear disk drives the first transmission gear to rotate, the first transmission gear drives the second sprocket through the first sprocket and the chain, the second sprocket drives the transmission sprocket to rotate, the transmission sprocket drives the tightening roller through the chain and the third sprocket, the tightening roller drives the clamping roller to clamp the unwinding end of the steel coil, and the tightening roller rotates clockwise, and the outer ring of the steel coil can be tightened while limiting the steel coil, so that the steel coil can be tightened more quickly.

[0004] When the uncoiler provided by the above patent rotates the loose steel strip counterclockwise to tighten it, the tightening roller rotates clockwise. The relative movement between the tightening roller and the steel strip will generate friction on the surface of the steel strip, which may cause scratches on the surface of the steel strip, affecting the quality of the steel strip and further affecting the subsequent production quality of furniture. Summary of the invention

[0005] The present invention provides a steel strip unwinding device for steel furniture production, aiming to solve the problem that when the unwinding machine in the related art tightens the loose steel strip, it is easy to cause friction on the surface of the steel strip, resulting in scratches on the surface of the steel strip, thereby affecting the quality of furniture production.

[0006] The present invention discloses a steel strip unwinding device for producing steel furniture, comprising a machine body, the machine body is provided with a winding mechanism for winding the steel strip, the machine body is also provided with a guide mechanism, the guide mechanism comprises a guide component 1 and a guide component 2; The guide assembly 1 includes a connecting piece, a guide piece 1, an adjusting piece and an adjusting structure, wherein the connecting piece is fixed to the upper end of the adjusting piece, an adjusting slot is provided on the adjusting piece, the guide piece 1 is longitudinally slidably matched with the adjusting slot, and is rotationally matched with the bottom of the adjusting slot, and the adjusting structure is simultaneously connected to the connecting piece and the guide piece 1, and the adjusting structure pushes the guide piece 1 to move downward along the adjusting slot, and pushes the guide piece 1 to rotate around the bottom of the adjusting slot when the guide piece 1 moves to the bottom of the adjusting slot; The guide component 2 includes a guide member 2 and an elastic member, the lower end of the elastic member is hinged relative to the body, the upper end of the elastic member is elastically abutted against the bottom of the guide member 2, and the end of the steel belt passes between the guide member 1 and the guide member 2.

[0007] The beneficial effects are as follows: when the steel strip is rolled up, the end of the steel strip is clamped and fixed, and at the same time, scratches on the surface of the steel strip are avoided during the tightening process of the steel strip. The guide member 1 and the guide member 2 are respectively fitted with the two end surfaces of the end of the steel strip, and when the guide member 1 moves to the bottom of the adjustment groove, the guide member 1 is pushed to rotate around the bottom of the adjustment groove, so that the guide member 1 and the guide member 2 clamp and fix the steel strip in a relatively inclined state, thereby improving the fixing strength of the end of the steel strip, reducing the sliding of the steel strip relative to the guide member 1 and the guide member 2, reducing the scratches on the surface of the steel strip, and improving the quality of subsequent processing of the steel strip.

[0008] Preferably, the adjustment structure includes a driving source, a screw, a sliding member and a push rod, the driving end of the driving source is connected to one end of the screw, the screw is rotatably matched with the connecting member, the sliding member is threadedly matched with the screw and slidably matched with the connecting member, one end of the push rod is hinged to the sliding member, and the other end of the push rod is hinged to the guide member.

[0009] Preferably, a sliding portion is fixed to the side of the guide member, and the sliding portion is longitudinally slidably matched with the adjusting groove. A rotating block is rotatably provided at the bottom of the adjusting groove, and a slot consistent with the shape of the sliding portion is provided on the rotating block. The rotating block is connected to the adjusting member through a torsion spring. When the torsion spring is naturally stretched, the sliding portion slides to the bottom of the adjusting groove, enters the slot and engages with the slot.

[0010] The beneficial effect is: during the steel belt tightening operation, the automatic clamping and fixing operation of the end of the steel belt is realized. When the torsion spring stretches naturally, the sliding part slides to the bottom of the adjustment groove, enters the slot and engages with the slot. The adjustment structure pushes the guide part 1 to move down along the adjustment groove, and when the guide part 1 moves to the bottom of the adjustment groove, it pushes the guide part 1 to rotate around the bottom of the adjustment groove, thereby automatically realizing the clamping of the steel belt and the deflection of the clamping steel belt.

[0011] Preferably, the guide member 1 includes a guide portion 1 and a guide portion 2, the guide portion 1 and the guide portion 2 are slidably matched, the push rod is hinged to the guide portion 1, a shift lever is further provided on the guide portion 1, the push rod is movably abutted against the shift lever, and the guide member 2 includes a hinged movable portion 1 and a movable portion 2; The guide mechanism also includes a rotating structure, which includes a driving source 2, a gear 1 and a gear 2. The driving source 2 is fixed relative to the body, the gear 1 is connected to the driving end of the driving source 2, the gear 1 is fixed relative to the guide part 1, the gear 2 is fixed relative to the movable part 1, and the gear 1 is meshed with the gear 2.

[0012] The beneficial effects are: improving the conveying accuracy of the steel strip during unwinding operation and ensuring the quality of steel furniture production. When the steel strip is unwinding, the guide part 1 presses against the outermost steel strip of the steel strip coil to prevent the steel strip coil from loosening. The inner end of the movable part 2 moves up and abuts against the steel strip, which is used to tension the steel strip being unrolled to prevent the steel strip from loosening and ensure the conveying accuracy of the steel strip when unwinding. The outer ends of the guide part 1 and the movable part 1 clamp and guide the steel strip to ensure the flatness of the steel strip conveying.

[0013] Preferably, a slide groove is provided on the guide part one, and a slider is fixed on the guide part two, and the slider is slidably matched with the slide groove. The guide part one and the guide part two are also connected by a limiting structure, and the limiting structure includes a limiting block and an extrusion piece. The limiting block is slidably matched with the guide part one, and the limiting block slides in a direction perpendicular to the slide groove. The limiting block is provided with a notch opposite to the movement of the slide groove, and the extrusion piece is fixed relative to the machine body, and the thickness of the extrusion piece increases from bottom to top, and the limiting block abuts against the extrusion piece.

[0014] The beneficial effect is: it avoids the sliding cooperation between the guide part 1 and the guide part 2 from affecting the tensioning operation when the steel strip is rolled up. Only when the guide part 1 rotates, the limit block rotates with the guide part 1 to contact the extrusion part, and the extrusion part squeezes the limit block so that the notch on the limit block is opposite to the slide groove, and the slider can smoothly pass through the notch on the limit block. The guide block 1 and the guide block 2 can slide relatively. During the rolling operation, the guide part 1 does not rotate, the limit block contacts the bottom end of the extrusion part, and the notch on the limit block is staggered with the slide groove, preventing the slider from sliding along the slide groove, thereby limiting the relative sliding of the guide block 1 and the guide block 2.

[0015] Preferably, two relatively distant ends of the guide portion 1 and the guide portion 2 are each provided with a rotatable pressure roller, and two relatively distant ends of the movable portion 1 and the movable portion 2 are each provided with a rotatable pressure roller.

[0016] The beneficial effect is that by setting the pressure roller, the friction with the surface of the steel belt during the tensioning operation is reduced, and the wear on the surface of the steel belt is reduced.

[0017] Preferably, a mounting frame is fixed on the machine body, an arc-shaped groove is provided on the mounting frame, and the connecting member is slidably matched with the arc-shaped groove.

[0018] Preferably, there are a plurality of elastic members, and each of the elastic members is respectively connected to the four corners of the second guide member.

[0019] The beneficial effects of the present invention are: (1) When the steel strip is rolled up, the end of the steel strip is clamped and fixed, and at the same time, scratches on the surface of the steel strip are avoided during the tightening process. The guide member 1 and the guide member 2 are respectively fitted with the two end surfaces of the end of the steel strip, and when the guide member 1 moves to the bottom of the adjustment groove, the guide member 1 is pushed to rotate around the bottom of the adjustment groove, so that the guide member 1 and the guide member 2 clamp and fix the steel strip in a relatively inclined state, thereby improving the fixing strength of the end of the steel strip, reducing the sliding of the steel strip relative to the guide member 1 and the guide member 2, reducing the scratches on the surface of the steel strip, and improving the quality of subsequent processing of the steel strip.

[0020] (2) Improve the conveying accuracy of the steel strip during unwinding operation to ensure the quality of steel furniture production. When the steel strip is unwinding, the guide part 1 presses against the outermost steel strip of the steel strip roll to prevent the steel strip roll from loosening. The inner end of the movable part 2 moves up and contacts the steel strip to tighten the steel strip being unwound to prevent the steel strip from loosening and ensure the conveying accuracy of the steel strip during unwinding. The outer ends of the guide part 1 and the movable part 1 clamp and guide the steel strip to ensure the flatness of the steel strip conveying. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 This is a status diagram of the guide mechanism and the steel strip when the steel strip is being rolled.

[0023] Figure 3 This is a state diagram of the guide mechanism and the steel strip from another perspective when the steel strip is being rolled up.

[0024] Figure 4 It is a schematic diagram of the connection structure of the adjustment structure, the adjustment member and the guide member.

[0025] Figure 5 This is a state diagram of the guide mechanism and the output end of the steel strip when it is uncoiled.

[0026] Reference numerals: 1. Machine body; 11. Winding mechanism; 12. Reel; 13. Steel belt; 2. Mounting frame; 21. Connecting piece; 211. Screw rod; 212. Sliding piece; 213. Push rod; 22. Adjusting piece; 221. Adjusting slot; 222. Rotating block; 3. Guide piece 1; 31. Guide part 1; 311. Gear lever; 32. Guide part 2; 321. Sliding part; 33. Slide slot; 331. Sliding block; 34. Limit stopper; 4. Guide piece 2; 41. Movable part 1; 42. Movable part 2; 43. Elastic piece; 5. Pressing roller. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0028] like Figure 1 and Figure 2 As shown, the steel strip unwinding device for steel furniture production of the present invention comprises a body 1, on which a winding mechanism 11 and a guiding mechanism are provided, the winding mechanism 11 is used for winding and unwinding a steel strip 13, the winding mechanism 11 comprises a motor, a clamp and a reel 12, the motor is mounted on the body 1, the clamp comprises a plurality of clamping claws, the reel 12 is sleeved on each clamping claw, the motor drives the clamp and the reel 12 to rotate, and the winding and unwinding operations of the steel strip 13 are realized by controlling the rotation direction of the motor, the steel strip 13 placed on the reel 12 is in a loose state, in order to avoid affecting the accuracy of subsequent processing, the steel coil needs to be tightened first, and the guiding mechanism is used to clamp and fix the end of the steel strip 13 when the motor drives the clamp to wind the steel strip 13, so as to facilitate the smooth tightening of the steel strip 13 and avoid friction on the surface of the steel strip 13 to the greatest extent.

[0029] like Figures 2 to 4 As shown, the guide mechanism includes a guide component 1 and a guide component 2, and the end of the steel belt 13 passes between the guide component 1 and the guide component 2, and the guide component 1 and the guide component 2 clamp and fix the end of the steel belt 13; The body 1 is fixed with a mounting frame 2, and the guide assembly 1 is mounted on the mounting frame 2. The guide assembly 1 includes a connecting member 21, a guiding member 3, an adjusting member 22 and an adjusting structure. The connecting member 21 is fixed to the upper end of the adjusting member 22, and an adjusting groove 221 is provided on the adjusting member 22. The guiding member 3 is longitudinally slidably matched with the adjusting groove 221 and is rotatably matched with the bottom of the adjusting groove 221. Specifically, a sliding portion 321 is fixed to the side of the guiding member 3, and the sliding portion 321 is longitudinally slidably matched with the adjusting groove 221. The bottom of the adjusting groove 221 is rotatably matched with the bottom of the adjusting groove 221. The rotating part is provided with a rotating block 222, and a slot which is consistent with the shape of the sliding part 321 is provided on the rotating block 222. The rotating block 222 is connected to the adjusting part 22 through a torsion spring. When the torsion spring is naturally stretched, the sliding part 321 slides to the bottom of the adjusting slot 221 and enters the slot and is engaged with the slot. The adjusting structure is connected to the connecting part 21 and the guide part 3 at the same time. The adjusting structure pushes the guide part 3 to move down along the adjusting slot 221, and pushes the guide part 3 to rotate around the bottom of the adjusting slot 221 when the guide part 3 moves to the bottom of the adjusting slot 221.

[0030] The guide assembly 2 includes a guide member 2 4 and an elastic member 43. The elastic member 43 can be an elastic telescopic rod. A mounting frame 2 is also fixed to the body 1. The lower end of each elastic member 43 is hinged to the mounting frame 2, and the upper end of the elastic member 43 elastically abuts against the bottom of the guide member 2 4. The end of the steel belt 13 passes between the guide member 1 3 and the guide member 2 4. When the steel belt 13 is rolled up, the guide member 1 3 and the guide member 2 4 clamp the end of the steel belt 13.

[0031] The adjustment structure includes a driving source 1, a screw rod 211, a sliding member 212 and a push rod 213. The driving source can be a motor. The driving end of the driving source 1 is connected to one end of the screw rod 211. The driving source 1 can be directly connected to the screw rod 211, or it can be transmitted and matched with the screw rod 211 through a gear. The driving source 1 is used to drive the screw rod 211 to rotate, the screw rod 211 is rotationally matched with the connecting member 21, the sliding member 212 is threadedly matched with the screw rod 211, and is slidingly matched with the connecting member 21, one end of the push rod 213 is hinged to the sliding member 212, and the other end of the push rod 213 is hinged to the guide member 3.

[0032] In the initial state, guide member 1 3 is located on the upper side of guide member 2 4 and there is a gap between guide member 2 4. After the steel strip roll is placed on the winding mechanism 11, the end of the steel strip 13 is pulled to the bottom of guide member 1 3, the driving source 1 is started to work and drive the screw rod 211 to rotate. When the screw rod 211 rotates, it drives the sliding member 212 to slide relative to the connecting member 21, and further drives the push rod 213 to rotate. When the push rod 213 deflects, it pushes guide member 1 3 to move downward until the bottom of guide member 1 3 contacts the steel strip 13 and moves downward to squeeze guide member 2 4. Each elastic member 43 is deformed by pressure and stores force, so that guide member 2 4 is tightly attached to the steel strip 13 under the elastic force of the elastic member 43, thereby improving the stability of guide member 1 3 and guide member 2 4 in clamping and fixing the steel strip 13. After the sliding part 321 slides to the bottom of the adjusting groove 221, it engages with the slot on the rotating block 222, and the screw rod 211 continues to rotate. Because the sliding part 321 cannot continue to move downward, the push rod 213 pushes the guide member 3 to rotate, with the side close to the reel 12 as the inner side. When the guide member 3 rotates, its inner end moves downward and its outer end tilts upward. Under the action of each elastic member 43, the guide member 24 is synchronously tilted with the guide member 3 and maintained in a state of being in contact with the steel belt 13 at the bottom of the steel belt 13, so that the guide member 13 and the guide member 24 clamp the steel belt 13 in a relatively inclined state, further preventing the end of the steel belt 13 from sliding relative to the guide member 13 and the guide member 24 during the tightening operation of the steel belt 13, thereby improving the fixing strength of the end of the steel belt 13 during the tightening operation of the steel belt 13.

[0033] like Figure 5 As shown, the end of the steel strip 13 is prone to looseness during the unwinding process. In order to ensure the subsequent processing accuracy, the guide mechanism can also keep the end of the steel strip 13 in a tensioned state when the steel strip 13 is unwinding. The guide member 3 includes a guide part 1 31 and a guide part 2 32. The guide part 1 31 and the guide part 2 32 are slidably matched. The push rod 213 is hinged to the guide part 1 31. The guide part 1 31 is also provided with a gear rod 311. The push rod 213 is movably abutted against the gear rod 311. The guide member 2 4 includes a hinged active part 1 41 and an active part 2 42; the guide mechanism also includes a rotating structure, which includes a driving source 2, a gear 1 and a gear 2. The driving source 2 is fixed relative to the body 1. The driving source 2 can be a motor. The gear 1 is connected to the driving end of the driving source 2, the gear 1 is fixed relative to the guide part 1 31, the gear 2 is fixed relative to the active part 1 41, and the gear 1 is meshed with the gear 2.

[0034] When the driving source 2 drives the gear 1 to rotate, it drives the gear 1 and the gear 2 to rotate synchronously in the opposite direction. The gear 1 is fixed relative to the outer end of the guide member 1 3. When the gear 1 rotates, the guide member 1 3 rotates around the gear 1 until the inner end of the guide member 3 deflects upward. After the push rod 213 moves to abut against the gear lever 311, it no longer rotates relative to the guide part 2 32, and pushes the guide part 2 32 to slide relative to the guide part 1 31, so that the overall length of the guide member 3 is increased, and the guide member 1 3 abuts against the outermost layer of the steel belt 13 on the reel 12. When the gear 2 rotates, it drives the movable part 1 41 to rotate, and the hinge between the movable part 1 41 and the movable part 2 42 deflects downward. The inner end of the movable part 2 42 moves up under the push of the elastic member 43. A pressure roller 5 is provided at each of the two ends of the guide part 1 31 and the guide part 2 32 that are relatively far away from each other. A pressure roller 5 is provided at each of the two ends of the movable part 1 41 and the movable part 2 42 that are relatively far away from each other. The pressure roller 5 rotates with the guide part 2 32 and the movable part 2 42.

[0035] When the steel strip 13 is unrolled, the pressure roller 5 on the guide part 31 presses the outermost steel strip 13 of the steel strip coil to prevent the steel strip coil from loosening, and the inner end of the movable part 42 moves up to abut against the steel strip 13, which is used to tension the unrolled steel strip 13 to prevent the steel strip 13 from loosening when unrolling and to ensure the conveying accuracy of the steel strip 13 when unrolling. The pressure rollers 5 on the guide part 31 and the movable part 41 clamp and guide the steel strip 13 to ensure the smoothness of the steel strip 13 when conveyed.

[0036] A slide groove 33 is provided on the guide part 1 31, and a slider 331 is fixed on the guide part 2 32. The slider 331 slides with the slide groove 33. In order to prevent the sliding cooperation between the guide part 1 31 and the guide part 2 32 from affecting the tensioning operation when the steel strip 13 is rolled up, the guide part 1 31 and the guide part 2 32 are also connected by a limiting structure. The limiting structure includes a limiting block 34 and an extrusion piece. The limiting block 34 slides with the guide part 1 31. The limiting block 34 slides in a direction perpendicular to the slide groove 33. A notch is provided on the limiting block 34 that is opposite to the movement of the slide groove 33. The extrusion piece is fixed relative to the body 1. The thickness of the extrusion piece increases from bottom to top. The limiting block 34 abuts against the extrusion piece. The cam 331 is pressed against the top of the workpiece 31 and the cam 332 is pressed against the workpiece 31. When the cam 331 is pressed against the workpiece 31, the cam 332 is pressed against the workpiece 31. When the cam 331 is pressed against the workpiece 31, the cam 332 is pressed against the workpiece 31.

[0037] The steel strip unwinding device provided by the present invention is used to reduce the friction generated on the surface of the steel strip during the steel strip winding process, and at the same time, keep the output end of the steel strip in a tensioned state during the steel strip unwinding operation, thereby improving the conveying accuracy of the steel strip.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A steel strip unwinding device for steel furniture production, comprising a machine body (1), the machine body (1) being provided with a winding mechanism (11) for winding the steel strip (13), characterized in that: The machine body (1) is also provided with a guide mechanism, which comprises a guide component 1 and a guide component 2; The guide assembly 1 comprises a connecting member (21), a guiding member 1 (3), an adjusting member (22) and an adjusting structure, wherein the connecting member (21) is fixed to the upper end of the adjusting member (22), an adjusting groove (221) is provided on the adjusting member (22), the guiding member 1 (3) is longitudinally slidably matched with the adjusting groove (221), and is rotationally matched with the bottom of the adjusting groove (221), the adjusting structure is connected to the connecting member (21) and the guiding member 1 (3) at the same time, the adjusting structure pushes the guiding member 1 (3) to move downward along the adjusting groove (221), and when the guiding member 1 (3) moves to the bottom of the adjusting groove (221), pushes the guiding member 1 (3) to rotate around the bottom of the adjusting groove (221); The guide assembly 2 comprises a guide member 2 (4) and an elastic member (43), the lower end of the elastic member (43) being hinged relative to the machine body (1), the upper end of the elastic member (43) being elastically abutted against the bottom of the guide member 2 (4), and the end of the steel belt (13) passing between the guide member 1 (3) and the guide member 2 (4).

2. The steel strip unwinding device for steel furniture production according to claim 1 is characterized in that: The adjustment structure comprises a driving source 1, a screw rod (211), a sliding member (212) and a push rod (213); the driving end of the driving source 1 is connected to one end of the screw rod (211); the screw rod (211) is rotationally matched with the connecting member (21); the sliding member (212) is threadedly matched with the screw rod (211) and is slidingly matched with the connecting member (21); one end of the push rod (213) is hinged to the sliding member (212); and the other end of the push rod (213) is hinged to a guide member 1 (3).

3. The steel strip unwinding device for steel furniture production according to claim 1 is characterized in that: A sliding portion (321) is fixed to the side of the guide member 1 (3), and the sliding portion (321) is longitudinally slidably matched with the adjusting groove (221). A rotating block (222) is rotatably provided at the bottom of the adjusting groove (221), and a clamping groove having the same shape as the sliding portion (321) is provided on the rotating block (222). The rotating block (222) is connected to the adjusting member (22) via a torsion spring. When the torsion spring is naturally stretched, the sliding portion (321) slides to the bottom of the adjusting groove (221), enters the clamping groove, and is clamped with the clamping groove.

4. The steel strip unwinding device for steel furniture production according to claim 2 is characterized in that: The guide member 1 (3) comprises a guide portion 1 (31) and a guide portion 2 (32), the guide portion 1 (31) and the guide portion 2 (32) are slidably matched, the push rod (213) is hingedly connected to the guide portion 1 (31), the guide portion 1 (31) is also provided with a shift rod (311), the push rod (213) and the shift rod (311) are movably abutted, and the guide member 2 (4) comprises a hinged movable portion 1 (41) and a movable portion 2 (42); The guide mechanism also includes a rotating structure, which includes a driving source 2, a gear 1 and a gear 2. The driving source 2 is fixed relative to the machine body (1), the gear 1 is connected to the driving end of the driving source 2, the gear 1 is fixed relative to the guiding part 1 (31), the gear 2 is fixed relative to the movable part 1 (41), and the gear 1 and the gear 2 are meshed.

5. The steel strip unwinding device for steel furniture production according to claim 4 is characterized in that: The guide part 1 (31) is provided with a slide groove (33), the guide part 2 (32) is fixed with a slider (331), the slider (331) and the slide groove (33) are slidably matched, the guide part 1 (31) and the guide part 2 (32) are also connected via a limiting structure, the limiting structure comprises a limiting block (34) and an extrusion piece, the limiting block (34) and the guide part 1 (31) are slidably matched, the limiting block (34) slides in a direction perpendicular to the slide groove (33), the limiting block (34) is provided with a notch that is movable opposite to the slide groove (33), the extrusion piece is fixed relative to the body (1), the thickness of the extrusion piece increases from bottom to top, and the limiting block (34) abuts against the extrusion piece.

6. The steel strip unwinding device for steel furniture production according to claim 4, characterized in that: A pressure roller (5) is rotatably provided at two ends of the guide part 1 (31) and the guide part 2 (32) that are relatively far away from each other, and a pressure roller (5) is provided at two ends of the movable part 1 (41) and the movable part 2 (42) that are relatively far away from each other.

7. The steel strip unwinding device for steel furniture production according to claim 4, characterized in that: A mounting frame (2) is fixed on the machine body (1), an arc-shaped groove is provided on the mounting frame (2), and the connecting piece (21) is slidably matched with the arc-shaped groove.

8. The steel strip unwinding device for steel furniture production according to claim 1, characterized in that: There are a plurality of elastic members (43), and each elastic member (43) is connected to four corners of the second guide member (4) respectively.

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