Spring winding and shearing device

Abstract

The utility model discloses a spring winding shearing device which comprises a pressure spring assembly, a driving assembly, a forming control assembly and a shearing assembly, the driving assembly comprises a driving piece, the forming control assembly comprises a baffle, the baffle is arranged on the side portion of a wire outlet, the shearing assembly comprises a shearing tool, and the shearing tool is arranged on the side portion of the wire outlet. The shearing tool is arranged on the side portion of the wire outlet, the driving piece is in transmission connection with the baffle and the shearing tool at the same time, and the driving piece can drive the baffle to wind wires and drive the shearing tool to cut the wires. The driving assembly further comprises a transmission rod, a first cam and a second cam, wherein the first cam and the second cam are connected to the transmission rod. The forming control assembly further comprises a first abutting column. The shearing assembly further comprises a second abutting column. According to the utility model, the same driving piece can be used for controlling wire material forming and spring shearing, so that the mounting space and the cost can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of spring production equipment, in particular to a spring winding and shearing device. Background Art

[0002] Spring mattress is a common type of mattress. The internal spring system of spring mattress is usually composed of many independent springs, which are made by spring winding and shearing device. Existing spring winding and shearing device usually has a spring coiling mechanism and a shearing mechanism. The spring coiling mechanism coils the wire into a spring of a predetermined height, and the shearing mechanism cuts out the formed spring. The spring coiling mechanism is driven by a spring coiling drive, and the shearing mechanism is driven by a shearing drive. In the spring winding and shearing device, it is necessary to reserve installation space and transmission space for the spring coiling drive and the shearing drive, which requires a large space, and the drives of the two cannot be synchronized. It is necessary to add additional control programs and hardware interfaces, and the development cost is high. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a spring winding and shearing device, which can use the same driving member to control wire forming and spring shearing, thereby saving installation space and cost.

[0004] In order to solve the above technical problems, the utility model provides a spring winding and shearing device, including a compression spring assembly, a drive assembly, a forming control assembly and a shearing assembly. The compression spring assembly includes a feed hole, a discharge hole and a compression spring mechanism arranged between the feed hole and the discharge hole. The wire material enters the compression spring mechanism from the feed hole and is discharged from the discharge hole.

[0005] The driving component includes a driving member, the forming control component includes a baffle, the baffle is arranged on the side of the discharge hole, the shearing component includes a shearing tool, the shearing tool is arranged on the side of the discharge hole, the driving member is connected to the baffle and the shearing tool at the same time, and the driving member can drive the baffle to wind the wire material and drive the shearing tool to cut the wire material.

[0006] As an improvement of the above scheme, the molding control assembly also includes a first driving rod and a connecting block, one end of the first driving rod is transmission-connected to the driving member, the other end of the first driving rod is connected to the connecting block, the top of the connecting block is connected to the baffle, the opening of the discharge hole faces the baffle, and the plane of the baffle is inclined to the axis of the discharge hole.

[0007] As an improvement of the above scheme, the shearing assembly also includes a second driving rod and a fixed block, one end of the second driving rod is transmission-connected to the driving member, the other end of the second driving rod is connected to the fixed block, and the top of the fixed block is connected to the shearing tool.

[0008] As an improvement of the above-mentioned scheme, the driving assembly also includes a transmission rod, a first cam and a second cam connected to the transmission rod, the transmission rod is vertically connected to the movable end of the driving member, the first cam and the second cam are arranged in parallel, the end of the first driving rod away from the connecting block is connected to the side wall of the first cam, and the end of the second driving rod away from the fixed block is connected to the side wall of the second cam.

[0009] As an improvement of the above-mentioned scheme, the forming control component also includes a first abutment column, which is vertically fixed on the first driving rod, and the side wall of the first abutment column abuts against the side wall of the first cam; the shearing component also includes a second abutment column, which is vertically fixed on the second driving rod, and the side wall of the second abutment column abuts against the side wall of the second cam.

[0010] As an improvement of the above solution, the driving assembly also includes a bearing seat, the first driving rod passes through the bearing seat and is connected to the connecting block, the first driving rod is slidably connected to the bearing seat, and the second driving rod is slidably connected to the bearing seat.

[0011] As an improvement of the above-mentioned scheme, a first baffle is provided on the first driving rod, a second baffle is provided on the second driving rod, the forming control component also includes a first spring, the first spring is provided between the first baffle and the bearing seat, and the shearing component also includes a second spring, the second spring is provided between the second baffle and the bearing seat.

[0012] As an improvement of the above solution, the driving assembly further includes a fixing frame, the driving member is fixed on the fixing frame, and the first cam and the second cam are arranged in the fixing frame.

[0013] As an improvement of the above scheme, the compression spring mechanism includes a spring feed seat and a compression spring wheel. The number of the compression spring wheels is 2 and they are distributed up and down inside the compression spring wheel. The sides of the two compression spring wheels abut against each other. The line connecting the feed hole and the discharge hole is located between the two compression spring wheels. The edge of the compression spring wheel is provided with a compression spring groove. The wire material enters the compression spring groove from the feed hole and is discharged from the discharge hole.

[0014] As an improvement of the above solution, the driving component is a servo motor.

[0015] The implementation of this utility model has the following beneficial effects:

[0016] The utility model discloses a spring winding and shearing device comprising a compression spring assembly, a driving assembly, a forming control assembly and a shearing assembly. The wire material enters the compression spring mechanism from the feeding hole of the compression spring assembly and is discharged from the discharging hole. The forming control assembly comprises a baffle plate, which can block the discharged wire material and cause the wire material to curl into a spring shape. The wire material is then cut by a shearing tool of the shearing assembly. The driving member of the driving assembly is simultaneously connected to the baffle plate and the shearing tool in a transmission manner. The baffle plate and the shearing tool are both driven by the driving member. The single driving member is used for control. While saving the number of driving members and the installation space, the complexity of the control program can be reduced and the hardware interface can be reduced, thereby saving equipment cost and control cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the spring winding and shearing device of the utility model;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the compression spring assembly of the utility model;

[0019] Figure 3 It is a partial structural schematic diagram of the spring winding and shearing device of the utility model. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail with reference to the accompanying drawings. It is hereby stated that the directional words such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the utility model are only based on the accompanying drawings of the utility model, and are not specific limitations of the utility model.

[0021] See also Figure 1 and Figure 2The utility model embodiment discloses a spring winding and shearing device, including a compression spring assembly 1, a driving assembly 2, a forming control assembly 3 and a shearing assembly 4. The compression spring assembly 1 is used to press the wire material straight for subsequent winding. The compression spring assembly 1 includes a feed hole 11, a discharge hole 12 and a compression spring mechanism 13 arranged between the feed hole 11 and the discharge hole 12. The wire material enters the compression spring mechanism 13 from the feed hole 11 and is discharged from the discharge hole 12. The compression spring mechanism 13 presses the wire material straight. The driving assembly 2 includes a driving member 21, which is preferably a rotating motor. The forming control assembly 3 includes a baffle 31, which is arranged on the side of the discharge hole 12, and is used to form the wire material and control the height of the formed spring. The shearing assembly 4 includes a shearing tool 41, which is arranged on the side of the discharge hole 12. When the spring is formed and reaches a preset height, the shearing tool 41 can shear the end wire material of the spring, and then the spring is discharged. In order to reduce the control components and reduce the control complexity, and save component costs and installation space, the driving member 21 is simultaneously connected to the baffle 31 and the shearing tool 41. When the driving member 21 rotates, it can drive the baffle 31 and the shearing tool 41 at the same time. Specifically, the driving member 21 can drive the baffle 31 to wind the wire material and drive the shearing tool 41 to cut the wire material, so as to respectively complete the wire winding and forming cutting actions.

[0022] The beneficial effects of the embodiments of the utility model are as follows:

[0023] The spring winding and shearing device of the utility model embodiment is provided with a compression spring assembly 1, a driving assembly 2, a forming control assembly 3 and a shearing assembly 4. The wire material enters the compression spring mechanism 13 from the feed hole 11 of the compression spring assembly 1 and is discharged from the discharge hole 12. The forming control assembly 3 includes a baffle 31, which can block the discharged wire material to cause the wire material to curl into a spring shape, and then the wire material is cut by the shearing tool 41 of the shearing assembly 4. The driving member 21 of the driving assembly 2 is simultaneously connected to the baffle 31 and the shearing tool 41. The baffle 31 and the shearing tool 41 are both driven by the driving member 21 and controlled by a single driving member 21. While saving the number and installation space of the driving member 21, it can reduce the complexity of the control program and reduce the hardware interface, and can save equipment cost and control cost.

[0024] In the embodiment of the utility model, the driving member 21 is a servo motor. Using the servo motor control, accurate positioning and motion control can be achieved, and it has a fast response characteristic, can quickly respond to control instructions and achieve accurate motion control, thereby achieving the requirements of accurate control molding and rapid cutting.

[0025] Specifically, see Figure 3 The molding control assembly 3 also includes a first driving rod 32 and a connecting block 33, one end of the first driving rod 32 is transmission-connected to the driving member 21, and the other end of the first driving rod 32 is connected to the connecting block 33, the driving member 21 can drive the connecting block 33 to move through the first driving rod 32, and the top of the connecting block 33 is connected to the baffle 31, so the driving member 21 can drive the baffle 31 to move, the opening of the discharge hole 12 faces the baffle 31, the wire material discharged from the discharge hole 12 can contact the baffle 31, the plane of the baffle 31 is inclined to the axis of the discharge hole 12, because the baffle 31 is inclined, after the wire material is discharged from the discharge hole 12 and contacts the baffle 31, the baffle 31 will force the wire material to curl, and a spring is formed after multiple curlings. The length direction of the first driving rod 32 is perpendicular to the connecting line direction of the feed hole 11 and the discharge hole 12. The driving member 21 can drive the first driving rod 32 to move in a direction perpendicular to the moving direction of the wire. When the diameter of the wound spring remains unchanged, the baffle 31 is stationary. When the diameter of the wound spring needs to change, the driving member 21 will drive the baffle 31 to move in a direction perpendicular to the moving direction of the wire. Since the baffle 31 is tilted, the contact distance between the baffle 31 and the wire will change after movement. When the distance becomes shorter, the diameter of the spring becomes smaller, and when the distance becomes longer, the diameter of the spring becomes larger. Therefore, the molding control component 3 can control the molding diameter of the spring.

[0026] The shearing assembly 4 further includes a second driving rod 42 and a fixing block 43, one end of the second driving rod 42 is drivingly connected to the driving member 21, and the other end of the second driving rod 42 is connected to the fixing block 43, the driving member 21 can drive the fixing block 43 to move through the second driving rod 42, and the top of the fixing block 43 is connected to the shearing tool 41, so the driving member 21 can drive the shearing tool 41. When the spring is formed, the driving member 21 can drive the shearing tool 41 to shear the end wire of the spring.

[0027] See also Figure 3In order to be able to drive the baffle 31 and the shearing tool 41 at the same time, the driving assembly 2 also includes a transmission rod 22, a first cam 23 and a second cam 24 connected to the transmission rod 22, the transmission rod 22 is vertically connected to the movable end of the driving member 21, the first cam 23 and the second cam 24 are arranged in parallel, the end of the first driving rod 32 away from the connecting block 33 is connected to the side wall of the first cam 23, and the end of the second driving rod 42 away from the fixing block 43 is connected to the side wall of the second cam 24. By setting the first cam 23 and the second cam 24, when the movable end of the driving member 21 rotates, it will drive the transmission rod 22 to rotate, and the rotation of the transmission rod 22 will drive the first cam 23 and the second cam 24 to rotate at the same time. The first cam 23 and the second cam 24 have different protruding directions, which can be set according to the time for controlling the spring diameter change and the time for shearing after forming. In this way, the wire material is wound after being discharged from the discharge hole 12, and the diameter is changed after a period of time, and the spring is sheared after a period of time. During the continuous rotation of the driving member 21, the above process is repeated to achieve the effect of mass production.

[0028] In addition, in order to reduce the contact friction between the first driving rod 32 and the second driving rod 42 and the transmission rod 22, the molding control assembly 3 further includes a first abutting column 34, which is vertically fixed on the first driving rod 32, and the side wall of the first abutting column 34 abuts against the side wall of the first cam 23; the shearing assembly 4 further includes a second abutting column 44, which is vertically fixed on the second driving rod 42, and the side wall of the second abutting column 44 abuts against the side wall of the second cam 24. Since the first abutting column 34, the second abutting column 44 and the side wall of the transmission rod 22 are all curved surfaces, the friction area between the first abutting column 34 and the second abutting column 44 and the transmission rod 22 is small, and the friction resistance is small, so the first driving rod 32 and the second driving rod 42 will not hinder the rotation of the transmission rod 22, and can reduce wear.

[0029] See also Figure 3In order to facilitate the first driving rod 32 and the second driving rod 42 to move along the axial direction, the driving assembly 2 further includes a bearing seat 25, the first driving rod 32 passes through the bearing seat 25 and is connected to the connecting block 33, the first driving rod 32 is slidably connected to the bearing seat 25, the first driving rod 32 is slidably connected to the bearing seat 25, and the second driving rod 42 is slidably connected to the bearing seat 25. A linear bearing is arranged in the bearing seat 25, which can provide guidance for the movement of the first driving rod 32 and the second driving rod 42 and reduce the movement friction of the first driving rod 32 and the second driving rod 42.

[0030] In addition, in order to enable the first abutting column 34 and the second abutting column 44 to continuously abut against the first cam 23 and the second cam 24, the first driving rod 32 is provided with a first blocking piece 321, the second driving rod 42 is provided with a second blocking piece 421, the molding control assembly 3 further includes a first spring 35, the first spring 35 is provided between the first blocking piece 321 and the bearing seat 25, and the shearing assembly 4 further includes a second spring 45, the second spring 45 is provided between the second blocking piece 421 and the bearing seat 25. When the first cam 23 and the second cam 24 generate a force for the first driving rod 32 and the second driving rod 42 to move toward the bearing seat 25, under the reaction force of the first spring 35 and the second spring 45, the first abutting column 34 and the second abutting column 44 can continuously abut against the first cam 23 and the second cam 24, so as to ensure the stability of subsequent operation.

[0031] In order to fix the driving member 21, the driving assembly 2 also includes a fixing frame 26, and the driving member 21 is fixed on the fixing frame 26. There is an installation space in the fixing frame 26. The first cam 23 and the second cam 24 are arranged in the fixing frame 26. The first cam 23 and the second cam 24 can be accommodated by using only one fixing frame 26, which can save space.

[0032] The compression spring mechanism 13 includes a spring feed seat 14 and a compression spring wheel 15. The number of the compression spring wheels 15 is two and they are distributed up and down inside the compression spring wheel 15. The sides of the two compression spring wheels 15 abut against each other. The line connecting the feed hole 11 and the discharge hole 12 is located between the two compression spring wheels 15. The edge of the compression spring wheel 15 is provided with a compression spring groove 151. The wire material enters the compression spring groove 151 from the feed hole 11 and is discharged from the discharge hole 12. After the wire material enters the compression spring groove 151, it is straightened from the upper and lower directions by the two compression spring wheels 15. The compression spring groove 151 can wrap around the wire material, straighten the wire material from the four sides of the wire material, and the straightened wire material is discharged from the discharge hole 12.

[0033] The above are preferred implementations of the present utility model. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present utility model. These improvements and modifications are also considered to be within the protection scope of the present utility model.

Claims

1. A spring winding and shearing device, characterized in that: It includes a compression spring assembly, a driving assembly, a forming control assembly and a shearing assembly, wherein the compression spring assembly includes a feed hole, a discharge hole and a compression spring mechanism disposed between the feed hole and the discharge hole, and the wire material enters the compression spring mechanism from the feed hole and is discharged from the discharge hole; The driving component includes a driving member, the forming control component includes a baffle, the baffle is arranged on the side of the discharge hole, the shearing component includes a shearing tool, the shearing tool is arranged on the side of the discharge hole, the driving member is connected to the baffle and the shearing tool at the same time, and the driving member can drive the baffle to wind the wire material and drive the shearing tool to cut the wire material.

2. The spring winding and shearing device according to claim 1, characterized in that: The molding control assembly also includes a first driving rod and a connecting block, one end of the first driving rod is transmission-connected to the driving member, the other end of the first driving rod is connected to the connecting block, the top of the connecting block is connected to the baffle, the opening of the discharge hole faces the baffle, and the plane of the baffle is inclined to the axis of the discharge hole.

3. The spring winding and shearing device according to claim 2, characterized in that: The shearing assembly also includes a second driving rod and a fixed block, one end of the second driving rod is transmission-connected to the driving member, the other end of the second driving rod is connected to the fixed block, and the top of the fixed block is connected to the shearing tool.

4. The spring winding and shearing device according to claim 3, characterized in that: The driving assembly also includes a transmission rod, a first cam and a second cam connected to the transmission rod, the transmission rod is vertically connected to the movable end of the driving member, the first cam and the second cam are arranged in parallel, one end of the first driving rod away from the connecting block is connected to the side wall of the first cam, and one end of the second driving rod away from the fixed block is connected to the side wall of the second cam.

5. The spring winding and shearing device according to claim 4, characterized in that: The forming control component also includes a first abutment column, which is vertically fixed on the first driving rod, and the side wall of the first abutment column abuts against the side wall of the first cam; the shearing component also includes a second abutment column, which is vertically fixed on the second driving rod, and the side wall of the second abutment column abuts against the side wall of the second cam.

6. The spring winding and shearing device according to claim 5, characterized in that: The driving assembly also includes a bearing seat, the first driving rod passes through the bearing seat and is connected to the connecting block, the first driving rod is slidably connected to the bearing seat, and the second driving rod is slidably connected to the bearing seat.

7. The spring winding and shearing device according to claim 6, characterized in that: The first driving rod is provided with a first baffle, the second driving rod is provided with a second baffle, the forming control component also includes a first spring, the first spring is provided between the first baffle and the bearing seat, the shearing component also includes a second spring, the second spring is provided between the second baffle and the bearing seat.

8. The spring winding and shearing device according to claim 4, characterized in that: The driving assembly further comprises a fixing frame, the driving member is fixed on the fixing frame, and the first cam and the second cam are arranged in the fixing frame.

9. The spring winding and shearing device according to claim 1, characterized in that: The compression spring mechanism includes a spring feed seat and a compression spring wheel. There are two compression spring wheels distributed up and down inside the compression spring wheel. The sides of the two compression spring wheels abut against each other. The line connecting the feed hole and the discharge hole is located between the two compression spring wheels. A compression spring groove is provided on the edge of the compression spring wheel. The wire material enters the compression spring groove from the feed hole and is discharged from the discharge hole.

10. The spring winding and shearing device according to claim 1, characterized in that: The driving component is a servo motor.

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