Rolled cylindrical pin production device

Abstract

The utility model discloses a rolled cylindrical pin production device which comprises a mounting base, a winding roller is arranged on the mounting base, two groups of expansion rollers which are distributed in a staggered mode are arranged on the mounting base, the two groups of expansion rollers are both rotationally connected with the mounting base through bearings, a mounting frame is arranged above the mounting base, and the mounting frame is provided with a rolling roller. Two groups of symmetrically distributed adjusting frames are arranged on the mounting frame, belts are arranged on the two groups of adjusting frames, a coil spring is arranged in the mounting seat, the inner end and the outer end of the coil spring are fixedly connected with the winding roller and the mounting seat respectively, and the two ends of the winding roller penetrate through the mounting seat and are rotationally connected with the mounting seat respectively; a ratchet wheel is connected to the left end of the winding roller in a sleeving mode, a pawl is arranged in the mounting base, and the winding roller, the coil spring, the ratchet wheel, the expansion roller, the belt and the like are arranged, so that the steel belt is kept in an expansion state in the conveying process while conveying of the steel belt is achieved, and the punching mechanism can conveniently cut and punch the steel belt with the accurate size; and the production quality of the cylindrical pin is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of cylindrical pin production, in particular to a rolled cylindrical pin production device. Background Art

[0002] Elastic cylindrical pins, also known as spring pins, are headless hollow cylindrical bodies with axial slots and chamfered ends. They are used for positioning, connecting, and fixing parts. They need to have good elasticity and shear resistance. The outer diameter of this type of pin is slightly larger than the assembly hole diameter.

[0003] Usually, the production of cylindrical pins requires the use of carbon spring steel or stainless steel as raw materials. In the prior art, there is no good fastening measure for the transmission of steel materials during the production process of cylindrical pins. The steel belt is loose and dragged on the ground during a long transmission distance, which not only pollutes the steel belt but also affects the accuracy of the steel belt cutting size, thereby affecting the accuracy of the cylindrical pin punching size. In addition, the existing production device requires the staff to manually reel in the steel belt after suspending production, which is time-consuming and labor-intensive and can easily cut the staff. Utility Model Content

[0004] The utility model aims to provide a production device for rolled cylindrical pins to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for producing rolled cylindrical pins, comprising a mounting seat, a winding roller is provided on the mounting seat, two groups of staggered expansion rollers are provided on the mounting seat, both groups of expansion rollers are rotatably connected to the mounting seat through bearings, a mounting frame is provided above the mounting seat, two groups of symmetrically distributed adjustment frames are provided on the mounting frame, both groups of adjustment frames are provided with belts, a disc spring is provided in the mounting seat, inner and outer ends of the disc spring are fixedly connected to the winding roller and the mounting seat respectively, both ends of the winding roller respectively penetrate the mounting seat and are rotatably connected to the mounting seat, a ratchet is sleeved on the left end of the winding roller, and a pawl is provided in the mounting seat.

[0006] As a further preferred embodiment of the present technical solution, the pawl is meshedly connected with the ratchet wheel, the pawl is rotatably connected with the mounting seat via a mounting shaft, a torsion spring is sleeved on the mounting shaft, and two ends of the torsion spring are respectively fixedly connected to the pawl and the mounting seat.

[0007] As a further preferred embodiment of the present technical solution, a clamping rod is provided on the winding roller, and the clamping rod is movably clamped with the winding roller. Two groups of symmetrically distributed tension springs are provided in the winding roller, and two ends of the tension spring are fixedly connected to the clamping rod and the winding roller respectively.

[0008] As a further preferred embodiment of the present technical solution, two groups of symmetrically distributed first limit plates are sleeved on the winding roller, and the two groups of the first limit plates are slidingly connected to the winding roller. A first bidirectional screw is arranged in the winding roller, and the two ends of the first bidirectional screw respectively pass through the winding roller and are rotatably connected to the winding roller, and the first bidirectional screw respectively passes through the two groups of first limit plates and are threadedly connected to the two groups of first limit plates.

[0009] As a further preferred embodiment of the present technical solution, two groups of symmetrically distributed second limit plates are sleeved on the expansion roller, a second bidirectional screw is arranged in the expansion roller, two ends of the second bidirectional screw respectively pass through the expansion roller and are rotatably connected with the expansion roller, the second bidirectional screw respectively passes through the two groups of second limit plates and are threadedly connected with the two groups of second limit plates respectively.

[0010] As a further preferred embodiment of the present technical solution, two groups of the adjustment frames are each provided with two groups of symmetrically distributed installation rods, pulleys are sleeved on the installation rods, and the belts are respectively connected to the two groups of correspondingly arranged pulleys in driving connection.

[0011] As a further preferred embodiment of the present technical solution, the two groups of adjustment frames are both slidably connected to the mounting frame, a third bidirectional screw rod is provided in the mounting frame, both ends of the third bidirectional screw rod respectively pass through the mounting frame and are rotatably connected to the mounting frame, and the third bidirectional screw rod respectively passes through the two groups of adjustment frames and are respectively threadedly connected to the two groups of adjustment frames.

[0012] The utility model provides a rolled cylindrical pin production device, which has the following beneficial effects:

[0013] (1) The utility model realizes the transmission of the steel strip by means of the winding roller, disc spring, ratchet wheel, tension roller, belt, etc., while keeping the steel strip in a tensioned state during the transmission process, so that the stamping mechanism can perform accurate cutting and stamping of the steel strip, thereby ensuring the quality of the cylindrical pin production; the steel strip raw material is wound on the winding roller and transmitted to the right, and the winding roller rotates clockwise during the steel strip transmission process, and the disc spring is tightened during the rotation of the winding roller. At this time, under the action of the ratchet wheel and the pawl, the winding roller cannot rotate counterclockwise to return to its original position under the elastic force of the disc spring. Under the action of the disc spring and the ratchet wheel and the pawl, the winding roller cannot rotate automatically and can only rotate passively during the steel strip transmission process, thereby preventing the steel strip from loosening and dragging on the ground during the transmission process due to the automatic rotation of the winding roller, resulting in contamination of the steel strip and dimensional error of the steel strip punching. In addition, during the transmission process of the steel strip, the steel strip bypasses two sets of tension rollers respectively and is transmitted to the right under the action of two sets of reversely driven belts, so as to assist the winding roller in preventing the steel strip from loosening during the transmission process.

[0014] (2) The utility model realizes the adjustment of the size of the steel strip that can be wound and transmitted by setting a first limit plate, a second limit plate and two groups of adjustment frames, so that the production device can be suitable for steel strip raw materials of various sizes and produce cylindrical pins of different sizes; the first bidirectional screw rod, the second bidirectional screw rod and the third bidirectional screw rod are respectively driven by corresponding motors to rotate, drive the two groups of first limit plates, the two groups of second limit plates and the two groups of adjustment frames to change the relative distance, and the change in the distance between the adjustment frames drives the spacing between the two groups of belts arranged relatively to each other, so as to adapt to the winding and transmission of steel strips of different widths and thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the winding roller of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the first limiting plate of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the second limiting plate of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the adjustment frame of the utility model;

[0020] In the figure: 1. mounting seat; 2. winding roller; 3. disc spring; 4. ratchet; 5. pawl; 6. torsion spring; 7. tension roller; 8. mounting frame; 9. adjustment frame; 10. mounting rod; 11. pulley; 12. belt; 13. first limit plate; 14. first bidirectional screw rod; 15. clamping rod; 16. tension spring; 17. mounting shaft; 18. second limit plate; 19. second bidirectional screw rod; 20. third bidirectional screw rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] The utility model provides a technical solution: Figure 1 , Figure 2 and Figure 3As shown, in this embodiment, a rolled cylindrical pin production device includes a mounting seat 1, a winding roller 2 is provided on the mounting seat 1, two groups of staggered expansion rollers 7 are provided on the mounting seat 1, and the two groups of expansion rollers 7 are rotatably connected to the mounting seat 1 through bearings, a mounting frame 8 is provided above the mounting seat 1, and two groups of symmetrically distributed adjustment frames 9 are provided on the mounting frame 8, and belts 12 are provided on the two groups of adjustment frames 9, and a coil spring 3 is provided in the mounting seat 1, and the inner and outer ends of the coil spring 3 are respectively fixedly connected to the winding roller 2 and the mounting seat 1, and the two ends of the winding roller 2 respectively penetrate the mounting seat 1 and It is rotatably connected to the mounting seat 1, a ratchet 4 is sleeved on the left end of the winding roller 2, a pawl 5 is provided in the mounting seat 1, the pawl 5 is meshed with the ratchet 4, the pawl 5 is rotatably connected to the mounting seat 1 through a mounting shaft 17, a torsion spring 6 is sleeved on the mounting shaft 17, the two ends of the torsion spring 6 are respectively fixedly connected to the pawl 5 and the mounting seat 1, a clamping rod 15 is provided on the winding roller 2, the clamping rod 15 is movably clamped with the winding roller 2, two groups of symmetrically distributed tension springs 16 are provided in the winding roller 2, and the two ends of the tension spring 16 are respectively fixedly connected to the clamping rod 15 and the winding roller 2.

[0023] The transmission of the steel strip is achieved through the winding roller 2, coil spring 3, ratchet 4, tensioning roller 7, belt 12, etc., while the steel strip is kept in a tensioned state during the transmission process, so that the stamping mechanism can cut and stamp the steel strip with precise size, thereby ensuring the quality of cylindrical pin production.

[0024] like Figure 4 and Figure 5 As shown, two groups of symmetrically distributed first limit plates 13 are sleeved on the winding roller 2, and the two groups of first limit plates 13 are slidably connected to the winding roller 2. A first bidirectional screw rod 14 is arranged in the winding roller 2, and the two ends of the first bidirectional screw rod 14 respectively penetrate the winding roller 2 and are rotatably connected to the winding roller 2. The first bidirectional screw rod 14 respectively penetrates the two groups of first limit plates 13 and is threadedly connected to the two groups of first limit plates 13 respectively. Two groups of symmetrically distributed second limit plates 18 are sleeved on the expansion roller 7. A second bidirectional screw rod 19 is arranged in the expansion roller 7, and the two ends of the second bidirectional screw rod 19 respectively penetrate the expansion roller 7 and are rotatably connected to the expansion roller 7 Then, the second bidirectional screw rod 19 passes through the two groups of second limit plates 18 respectively and is threadedly connected to the two groups of second limit plates 18 respectively. Two groups of adjusting frames 9 are provided with two groups of symmetrically distributed mounting rods 10. The mounting rods 10 are sleeved with pulleys 11. The belts 12 are respectively transmission connected to the two groups of corresponding pulleys 11. The two groups of adjusting frames 9 are slidingly connected to the mounting frame 8. A third bidirectional screw rod 20 is provided in the mounting frame 8. Both ends of the third bidirectional screw rod 20 respectively pass through the mounting frame 8 and are rotatably connected to the mounting frame 8. The third bidirectional screw rod 20 passes through the two groups of adjusting frames 9 respectively and is threadedly connected to the two groups of adjusting frames 9 respectively.

[0025] By providing the first limiting plate 13, the second limiting plate 18 and the two sets of adjusting frames 9, the size of the steel strip that can be wound and transmitted can be adjusted, so that the production device can be suitable for steel strip materials of various sizes and produce cylindrical pins of different sizes.

[0026] The utility model provides a production device for rolled cylindrical pins, and the specific working principle is as follows: the steel strip raw material is wound on the uniform winding roller and transmitted to the right. During the steel strip transmission process, the winding roller 2 rotates clockwise, and the coil spring 3 is tightened during the rotation of the winding roller 2. At this time, under the action of the ratchet 4 and the pawl 5, the winding roller 2 cannot rotate counterclockwise to return to its original position under the elastic force of the coil spring 3. Under the action of the coil spring 3 and the ratchet 4 pawl 5, the winding roller 2 cannot rotate automatically and can only rotate passively during the steel strip transmission process, thereby avoiding the steel strip from being loosened and dragged on the ground during transmission due to the automatic rotation of the winding roller 2, resulting in contamination of the steel strip. The steel strip is wound around two sets of expansion rollers 7 and driven to the right by two sets of reversely driven belts 12 to prevent the steel strip from loosening during transmission. The first bidirectional lead screw 14, the second bidirectional lead screw 19 and the third bidirectional lead screw 20 are driven by corresponding motors to rotate, and the two sets of first limit plates 13, the two sets of second limit plates 18 and the two sets of adjusting frames 9 are driven to change the relative distance. The change in the distance between the adjusting frames 9 drives the spacing between the two sets of belts 12 set relatively to adapt to the winding and transmission of steel strips of different widths and thicknesses.

[0027] 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 device for producing rolled cylindrical pins, comprising a mounting seat (1), characterized in that: The mounting seat (1) is provided with a winding roller (2), and the mounting seat (1) is provided with two groups of staggered expansion rollers (7). The two groups of expansion rollers (7) are rotatably connected to the mounting seat (1) through bearings. A mounting frame (8) is provided above the mounting seat (1). The mounting frame (8) is provided with two groups of symmetrically distributed adjustment frames (9). The two groups of adjustment frames (9) are provided with belts (12). A coil spring (3) is provided inside the mounting seat (1). The inner and outer ends of the coil spring (3) are respectively fixedly connected to the winding roller (2) and the mounting seat (1). The two ends of the winding roller (2) respectively penetrate the mounting seat (1) and are rotatably connected to the mounting seat (1). A ratchet (4) is sleeved on the left end of the winding roller (2), and a ratchet pawl (5) is provided inside the mounting seat (1).

2. The device for producing a rolled cylindrical pin according to claim 1, characterized in that: The pawl (5) is meshedly connected with the ratchet wheel (4), and the pawl (5) is rotationally connected with the mounting seat (1) via a mounting shaft (17). A torsion spring (6) is sleeved on the mounting shaft (17), and the two ends of the torsion spring (6) are respectively fixedly connected to the pawl (5) and the mounting seat (1).

3. The device for producing a rolled cylindrical pin according to claim 1, characterized in that: The winding roller (2) is provided with a clamping rod (15), the clamping rod (15) being movably clamped with the winding roller (2), and the winding roller (2) is provided with two groups of symmetrically distributed tension springs (16), the two ends of the tension spring (16) being fixedly connected to the clamping rod (15) and the winding roller (2) respectively.

4. The device for producing a rolled cylindrical pin according to claim 1, characterized in that: The winding roller (2) is sleeved with two groups of symmetrically distributed first limit plates (13), and the two groups of the first limit plates (13) are both slidably connected to the winding roller (2). The winding roller (2) is provided with a first bidirectional screw rod (14), and the two ends of the first bidirectional screw rod (14) respectively penetrate the winding roller (2) and are rotatably connected to the winding roller (2). The first bidirectional screw rod (14) respectively penetrates the two groups of first limit plates (13) and is respectively threadedly connected to the two groups of first limit plates (13).

5. The device for producing rolled cylindrical pins according to claim 1, characterized in that: The expansion roller (7) is sleeved with two groups of symmetrically distributed second limit plates (18), and a second bidirectional screw rod (19) is arranged inside the expansion roller (7). Both ends of the second bidirectional screw rod (19) respectively penetrate the expansion roller (7) and are rotatably connected to the expansion roller (7), and the second bidirectional screw rod (19) respectively penetrates the two groups of second limit plates (18) and is respectively threadedly connected to the two groups of second limit plates (18).

6. The device for producing rolled cylindrical pins according to claim 1, characterized in that: Two groups of symmetrically distributed mounting rods (10) are provided on the two groups of adjustment frames (9), belt pulleys (11) are sleeved on the mounting rods (10), and the belts (12) are respectively connected to the two groups of correspondingly arranged belt pulleys (11).

7. The device for producing rolled cylindrical pins according to claim 1, characterized in that: The two groups of adjustment frames (9) are both slidably connected to the mounting frame (8); a third bidirectional screw rod (20) is arranged inside the mounting frame (8); two ends of the third bidirectional screw rod (20) respectively penetrate the mounting frame (8) and are rotatably connected to the mounting frame (8); the third bidirectional screw rod (20) respectively penetrates the two groups of adjustment frames (9) and is respectively threadedly connected to the two groups of adjustment frames (9).

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