Pre-tightening device on sheet cutting device

Abstract

The utility model discloses a pre-tightening device on a sheet cutting device, which relates to the technical field of sheet processing and comprises a supporting component and a pre-pressing component, and the supporting component consists of a supporting bracket, a conveying roller and a supporting plate. The pre-pressing assembly is arranged, the pressing wheel of the pre-pressing assembly is always pressed on the surface of the aluminum alloy sheet under the torsion effect of the first torsion spring, therefore, vibration of the aluminum alloy sheet can be effectively reduced, the pressing wheel cannot rotate reversely under the limiting effect of the arc-shaped clamping block, and then the situation that the aluminum alloy sheet moves backwards can be effectively avoided; meanwhile, limiting metal discs on the two pre-pressing assemblies are attached to two side plates of the aluminum alloy sheet, the aluminum alloy sheet can be effectively prevented from deviating due to vibration, and the aluminum alloy sheet entering the sheet cutting device can be kept in a stable state through cooperation of the multiple parts; and the aluminum alloy sheet of the part is effectively prevented from moving backwards and vibrating, and then the cutting precision of the aluminum alloy sheet is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet material processing, in particular to a pre-tightening device on a sheet material cutting device. Background Art

[0002] A metal yarn guide plate is a metal plate used to guide yarn. It is usually installed on textile machinery to guide the path of the yarn to ensure that the yarn moves in the desired direction, thereby improving the quality and production efficiency of textiles.

[0003] The metal yarn guide plate is usually made of wear-resistant metal materials, such as cast iron, steel or aluminum alloy, etc. It has a certain strength and rigidity and can withstand a certain tension and friction. There are usually some grooves or holes on the yarn guide plate to guide the path of the yarn.

[0004] When processing and producing metal yarn guide plates, the aluminum alloy coils need to be cut into small pieces first, and then the small pieces of aluminum alloy sheets are processed into yarn guide plates through stamping, drilling and other processes. In this process, a sheet cutting device is needed to cut the aluminum alloy coils;

[0005] During the process of cutting the aluminum alloy coil or the aluminum alloy sheet, the aluminum alloy sheet will stop being transported. After completing a single cut, the aluminum alloy sheet will continue to be transported. This reciprocating operation will cause the aluminum alloy sheet to shake during the start and stop of the aluminum alloy sheet transportation, which may easily cause the aluminum alloy sheet to shift, thereby affecting the cutting accuracy. Based on this, a pre-tightening device on a sheet cutting device is provided. Utility Model Content

[0006] The purpose of the utility model is to provide a pre-tightening device on a sheet material cutting device in order to solve the above-mentioned background problems.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pre-tightening device on a sheet cutting device, comprising a support assembly consisting of a support bracket, a conveying roller, and a support plate, wherein the support plate is fixed to the inner side of the support bracket, and the conveying roller is symmetrically rotated and installed on the inner side of the support bracket with the support plate as the center, and the top of the support bracket is symmetrically fixedly connected with a fixed side plate, and the middle of the two fixed side plates is fixedly connected with a guide rod, and the guide rod is distributed above the support plate, and a pre-tightening assembly is arranged on the outer side of the guide rod, and the pre-tightening assembly is used to realize the pressing operation on the aluminum alloy sheet passing through the top of the support plate;

[0008] The pre-pressing assembly includes a pressing unit, a reverse self-locking unit, and a side limiting unit;

[0009] The pressing unit is used to perform a pressing operation on the top of the aluminum alloy sheet;

[0010] The reverse self-locking unit is used to unidirectionally lock the rotation direction of the pressing wheel in the pressing unit, so as to realize the unidirectional movement of the aluminum alloy sheet;

[0011] The side limiting unit is used to assist the pressing unit to limit the side of the aluminum alloy sheet.

[0012] As a further solution of the utility model: the clamping unit includes a sliding seat, a locking bolt, a connecting seat, an arc-shaped arm, a side T-shaped shaft, a first torsion spring and a pressure wheel;

[0013] The sliding seat is slidably sleeved on the outside of the guide rod, and the locking bolt is threadedly connected to the top of the sliding seat and passes through the sliding seat and fits tightly with the top of the guide rod, so as to lock the position of the sliding seat;

[0014] The connecting seat is fixed to one end of the sliding seat, the side T-shaped shaft is fixed to the top of the arc-shaped arm, and the arc-shaped arm is rotatably connected to the inner side of the connecting seat through the side T-shaped shaft, and the pressure wheel is symmetrically rotatably connected to both sides of the bottom end of the arc-shaped arm;

[0015] One side of the side T-shaped shaft protrudes from the outside of the connecting seat, the first torsion spring is sleeved on the outside of the side T-shaped shaft, and the two end ends of the first torsion spring are respectively clamped with the outer side surface of the connecting seat and the side wall of the side T-shaped shaft. The first torsion spring is used to provide a downward deflection force for the arc arm, so that the pressure wheel can fit tightly on the top of the aluminum alloy sheet.

[0016] As a further solution of the utility model: the reverse self-locking unit includes a through-hole, a connecting shaft, an arc-shaped clamping block, and a second torsion spring;

[0017] The outer end surface of the pressing wheel is formed with a plurality of circumferentially distributed grooves for increasing the friction between the pressing wheel and the aluminum alloy sheet;

[0018] The through-hole is opened at a position near the bottom of the arc-shaped arm, the connecting shaft is rotatably installed on the inner side of the through-hole and penetrates to the two sides of the outer side of the arc-shaped arm to be fixedly connected with the arc-shaped clamping blocks, and the bottom ends of the two arc-shaped clamping blocks are clamped in the grooves on the outer side of the pressure wheel;

[0019] The second torsion spring is installed on the inner side of the through-port and sleeved on the outer side of the connecting shaft. The two end heads of the second torsion spring are respectively clamped with the side wall of the through-port and the outer wall of the connecting shaft. The second torsion spring is used to provide a deflection force for the connecting shaft, thereby realizing the clamping fit between the arc-shaped clamping block and the groove.

[0020] As a further solution of the utility model: the side limiting unit includes a limiting metal plate, and the limiting metal plate is fixed to a side of the two pressing wheels away from each other;

[0021] The pre-pressing components are arranged in plurality along the long side direction of the guide rod, and the two limiting metal disks on the two pre-pressing components are respectively attached to the side edges of the aluminum alloy sheet to achieve movement limiting of the aluminum alloy sheet.

[0022] As a further solution of the utility model: the outer diameter of the limiting metal disk is smaller than the outer diameter of the pressure wheel, and an inner core disk fixedly connected to the limiting metal disk is arranged inside the pressure wheel.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] By setting up a pre-pressing component, its pressure wheel is always pressed against the surface of the aluminum alloy sheet under the torsion of the first torsion spring, which can effectively reduce the vibration of the aluminum alloy sheet. In addition, the pressure wheel cannot rotate in the opposite direction due to the limitation of the arc-shaped clamping block, thereby effectively preventing the aluminum alloy sheet from moving backward. At the same time, the limiting metal plates on the two pre-pressing components are attached to the two side plates of the aluminum alloy sheet, which can effectively prevent the aluminum alloy sheet from shifting due to vibration. Through the cooperation of the above multiple parts, the aluminum alloy sheet entering the sheet cutting device can be kept in a stable state, effectively preventing this part of the aluminum alloy sheet from moving backward and vibrating, thereby improving the cutting accuracy of the aluminum alloy sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 It is a side structural cross-sectional view of the support assembly of the utility model;

[0027] Figure 3 It is a side structural sectional view of the pre-compression assembly of the utility model;

[0028] Figure 4 This is another perspective view of the pre-compression component of the utility model.

[0029] In the figure: 1. Support assembly; 101. Support bracket; 102. Conveyor roller; 103. Support plate; 104. Fixed side plate; 105. Guide rod; 2. Pre-tensioning assembly; 201. Sliding seat; 202. Locking bolt; 203. Connecting seat; 204. Arc arm; 205. Side T-axis; 206. First torsion spring; 207. Pressure wheel; 208. Limiting metal disk; 209. Through-hole; 210. Connecting shaft; 211. Arc block; 212. Second torsion spring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figures 1 to 4 In an embodiment of the utility model, a pre-tightening device on a sheet cutting device comprises a support assembly 1 composed of a support bracket 101, a conveying roller 102, and a support plate 103. The support plate 103 is fixed to the inner side of the support bracket 101, and the conveying roller 102 is symmetrically rotated and installed on the inner side of the support bracket 101 with the support plate 103 as the center. The top of the support bracket 101 is symmetrically fixedly connected with a fixed side plate 104, and the middle of the two fixed side plates 104 is fixedly connected with a guide rod 105, which is distributed above the support plate 103. A pre-tightening assembly 2 is arranged on the outer side of the guide rod 105, and the pre-tightening assembly 2 is used to realize a pressing operation on the aluminum alloy sheet passing through the top of the support plate 103;

[0032] The pre-pressing assembly 2 includes a pressing unit, a reverse self-locking unit, and a side limiting unit;

[0033] The pressing unit is used to press the top of the aluminum alloy sheet, the reverse self-locking unit is used to unidirectionally lock the rotation direction of the pressing wheel 207 in the pressing unit, so as to achieve unidirectional movement of the aluminum alloy sheet, and the side limiting unit is used to assist the pressing unit to limit the side of the aluminum alloy sheet;

[0034] The pressing unit includes a sliding seat 201, a locking bolt 202, a connecting seat 203, an arc-shaped arm 204, a side T-shaped shaft 205, a first torsion spring 206 and a pressing wheel 207;

[0035] The sliding seat 201 is slidably sleeved on the outside of the guide rod 105, and the locking bolt 202 is threadedly connected to the top of the sliding seat 201 and penetrates the sliding seat 201 and fits tightly with the top of the guide rod 105, so as to lock the position of the sliding seat 201;

[0036] The connecting seat 203 is fixed to one end of the sliding seat 201, the side T-shaped shaft 205 is fixed to the top of the arc-shaped arm 204, and the arc-shaped arm 204 is rotatably connected to the inner side of the connecting seat 203 through the side T-shaped shaft 205, and the pressure wheel 207 is symmetrically rotatably connected to both sides of the bottom end of the arc-shaped arm 204;

[0037] One side of the side T-shaped shaft 205 protrudes from the outside of the connecting seat 203, the first torsion spring 206 is sleeved on the outside of the side T-shaped shaft 205, and the two ends of the first torsion spring 206 are respectively clamped with the outer side surface of the connecting seat 203 and the side wall of the side T-shaped shaft 205, and the first torsion spring 206 is used to provide a downward deflection force for the arc-shaped arm 204, so as to achieve the pressing wheel 207 to fit closely to the top of the aluminum alloy sheet;

[0038] The reverse self-locking unit includes a through hole 209, a connecting shaft 210, an arc-shaped clamping block 211, and a second torsion spring 212;

[0039] The outer end surface of the pressing wheel 207 is formed with a plurality of circumferentially distributed grooves to increase the friction between the pressing wheel 207 and the aluminum alloy sheet;

[0040] The through hole 209 is opened at a position near the bottom of the arc-shaped arm 204, and the connecting shaft 210 is rotatably installed inside the through hole 209 and penetrates to the two sides of the outside of the arc-shaped arm 204 and is fixedly connected to the arc-shaped clamping blocks 211. The bottom ends of the two arc-shaped clamping blocks 211 are clamped in the grooves on the outside of the pressing wheel 207.

[0041] The second torsion spring 212 is installed on the inner side of the through-opening 209 and is sleeved on the outer side of the connecting shaft 210. The two end ends of the second torsion spring 212 are respectively clamped with the side wall of the through-opening 209 and the outer wall of the connecting shaft 210. The second torsion spring 212 is used to provide a deflection force for the connecting shaft 210, thereby realizing the clamping fit between the arc-shaped clamping block 211 and the groove.

[0042] In this embodiment: when cutting the aluminum alloy sheet, one end of the aluminum alloy coil is pulled and passed through the middle of the pressure wheel 207 and the support plate 103, and then one end of the aluminum alloy coil is sent into the sheet cutting device, and its conveying roller 102 is flush with the upper surface of the support plate 103, which can provide support for the conveying of the aluminum alloy sheet;

[0043] When the sheet cutting device is cutting and pulling the aluminum alloy sheet, the pressing wheel 207 is pressed against the surface of the aluminum alloy sheet under the torsion of the first torsion spring 206, which can effectively reduce the vibration of the aluminum alloy sheet.

[0044] At the same time, during the movement of the aluminum alloy sheet, the pressure wheel 207 can be driven to rotate synchronously under the action of friction. At this time, the rotation of the pressure wheel 207 can squeeze the arc block 211, so that the arc block 211 drives the connecting shaft 210 to rotate synchronously. The rotation of the connecting shaft 210 further twists and deforms the second torsion spring 212. When the aluminum alloy sheet stops moving, the pressure wheel 207 stops rotating, and its arc block 211 will be reset and stuck in a groove under the torsion of the second torsion spring 212. Through this structure, when the aluminum alloy sheet has a tendency to move backward due to vibration, the pressure wheel 207 will be pushed in the opposite direction. At this time, the pressure wheel 207 cannot rotate in the opposite direction under the limitation of the arc block 211, and then the aluminum alloy sheet can be effectively prevented from moving backward.

[0045] Through the coordination of the above multiple parts, the aluminum alloy sheet entering the sheet cutting device can be kept in a stable state, effectively preventing this part of the aluminum alloy sheet from moving backward or vibrating, thereby improving the cutting accuracy of the aluminum alloy sheet.

[0046] Please refer to Figures 1 to 4 The side limiting unit includes a limiting metal plate 208, and the limiting metal plate 208 is fixed to a side of the two pressing wheels 207 away from each other;

[0047] There are multiple pre-pressing components 2 arranged along the long side direction of the guide rod 105, and two limiting metal discs 208 on two pre-pressing components 2 are respectively attached to the side of the aluminum alloy sheet to achieve movement limiting of the aluminum alloy sheet;

[0048] The outer diameter of the limiting metal disk 208 is smaller than the outer diameter of the pressing wheel 207 , and an inner core disk fixedly connected to the limiting metal disk 208 is arranged inside the pressing wheel 207 .

[0049] In this embodiment, it should be noted that the pressing wheel 207 is composed of an inner core disk and a rubber layer wrapped around the outer side of the inner core disk. The rubber layer has a certain deformation and shrinkage performance, which can increase the friction between the pressing wheel 207 and the aluminum alloy sheet.

[0050] In addition, through the structural setting of multiple groups of pre-pressing components 2, sufficient pressing force can be provided for aluminum alloy sheets of different widths. This is because the limiting metal plates 208 on the two pre-pressing components 2 are attached to the two side plates of the aluminum alloy sheet, which can effectively prevent the aluminum alloy sheet from shifting due to vibration. The limiting metal plates 208 can prevent the aluminum alloy sheet from contacting the side of the rubber layer of the pressure wheel 207, thereby preventing the rubber layer from being scratched by the side plates of the aluminum alloy sheet.

[0051] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pre-tightening device on a sheet material cutting device, comprising a support assembly (1) consisting of a support bracket (101), a conveying roller (102), and a support plate (103), wherein the support plate (103) is fixed to the inner side of the support bracket (101), and the conveying roller (102) is symmetrically mounted on the inner side of the support bracket (101) with the support plate (103) as the center. The device is characterized in that: The top of the support bracket (101) is symmetrically fixedly connected to a fixed side plate (104), the middle of the two fixed side plates (104) is fixedly connected to a guide rod (105), the guide rod (105) is distributed above the support plate (103), and a pre-pressing assembly (2) is arranged on the outer side of the guide rod (105), and the pre-pressing assembly (2) is used to implement a pressing operation on the aluminum alloy sheet passing through the top of the support plate (103); The pre-pressing assembly (2) comprises a pressing unit, a reverse self-locking unit, and a side limiting unit; The pressing unit is used to perform a pressing operation on the top of the aluminum alloy sheet; The reverse self-locking unit is used to unidirectionally lock the rotation direction of the pressing wheel (207) in the pressing unit, thereby achieving unidirectional movement of the aluminum alloy sheet; The side limiting unit is used to assist the pressing unit to limit the side of the aluminum alloy sheet.

2. A pre-tightening device on a sheet material cutting device according to claim 1, characterized in that: The pressing unit comprises a sliding seat (201), a locking bolt (202), a connecting seat (203), an arc-shaped arm (204), a side T-shaped shaft (205), a first torsion spring (206) and a pressing wheel (207); The sliding seat (201) is slidably sleeved on the outside of the guide rod (105), and the locking bolt (202) is threadedly connected to the top of the sliding seat (201) and penetrates the sliding seat (201) to fit tightly with the top of the guide rod (105), so as to lock the position of the sliding seat (201); The connecting seat (203) is fixed to one end of the sliding seat (201), the side T-shaped shaft (205) is fixed to the top of the arc-shaped arm (204), and the arc-shaped arm (204) is rotatably connected to the inner side of the connecting seat (203) through the side T-shaped shaft (205), and the pressing wheel (207) is symmetrically rotatably connected to both sides of the bottom end of the arc-shaped arm (204); One side of the side T-shaped shaft (205) protrudes from the outside of the connecting seat (203), the first torsion spring (206) is sleeved on the outside of the side T-shaped shaft (205), and the two ends of the first torsion spring (206) are respectively clamped with the outer side surface of the connecting seat (203) and the side wall of the side T-shaped shaft (205), and the first torsion spring (206) is used to provide a downward deflection force for the arc-shaped arm (204), thereby achieving a pressing wheel (207) that is tightly fitted to the top of the aluminum alloy sheet.

3. A pre-tightening device on a sheet material cutting device according to claim 2, characterized in that: The reverse self-locking unit comprises a through opening (209), a connecting shaft (210), an arc-shaped clamping block (211), and a second torsion spring (212); The outer end surface of the pressing wheel (207) is formed with a plurality of circumferentially distributed grooves, which are used to increase the friction between the pressing wheel (207) and the aluminum alloy sheet; The through-opening (209) is opened at a position near the bottom inside the arc-shaped arm (204), the connecting shaft (210) is rotatably mounted on the inside of the through-opening (209) and penetrates to the two sides outside the arc-shaped arm (204) to be fixedly connected to the arc-shaped clamping blocks (211), and the bottom ends of the two arc-shaped clamping blocks (211) are clamped in the grooves on the outside of the pressure wheel (207); The second torsion spring (212) is installed on the inner side of the through-opening (209) and sleeved on the outer side of the connecting shaft (210); the two ends of the second torsion spring (212) are respectively engaged with the side wall of the through-opening (209) and the outer wall of the connecting shaft (210); the second torsion spring (212) is used to provide a deflection force for the connecting shaft (210), thereby achieving the engagement and fitting of the arc-shaped clamping block (211) with the groove.

4. The pre-tightening device on a sheet material cutting device according to claim 2, characterized in that: The side limiting unit comprises a limiting metal plate (208), and the limiting metal plate (208) is fixed to a side of the two pressing wheels (207) that is away from each other; The pre-pressing components (2) are provided in plurality along the long side direction of the guide rod (105), and the two limiting metal plates (208) on the two pre-pressing components (2) are respectively attached to the side edges of the aluminum alloy sheet, so as to limit the movement of the aluminum alloy sheet.

5. The pre-tightening device on a sheet material cutting device according to claim 4, characterized in that: The outer diameter of the limiting metal disk (208) is smaller than the outer diameter of the pressure wheel (207), and an inner core disk fixedly connected to the limiting metal disk (208) is arranged inside the pressure wheel (207).

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