High-speed punching feeding mechanism for lead belt and punching equipment

Abstract

The utility model discloses a high-speed punching feeding mechanism for a lead belt. The high-speed punching feeding mechanism comprises a feeding roller pair, a discharging roller pair and a lead belt bearing mechanism. The feeding roller pair is provided with a first roller gap for clamping a lead belt; the discharging roller pair is arranged on the discharging side of the feeding roller pair in the lead belt conveying direction, and the discharging roller pair is provided with a second roller gap for clamping and conveying the lead belt; the lead belt bearing mechanism comprises a bearing piece located between the feeding roller pair and the discharging roller pair and a lifting driving piece for driving the bearing piece to move in the plumb bob direction. The bearing piece is provided with an upward lead belt bearing face. According to the high-speed punching feeding mechanism for the lead belt, the lead belt arching upwards is supported through the lifting supporting piece, the lead belt is positioned in the plumb bob direction and the lead belt feeding horizontal direction, shaking of an arching structure of the lead belt is completely eradicated, and the problem that the internal stress of the lead belt is increased and / or local deformation is further caused by shaking of the arching structure is solved. The utility model further discloses punching equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of lead-acid battery plate production equipment, in particular to a high-speed punching and feeding mechanism and a punching and cutting device for a lead strip. Background Art

[0002] Lead strips produced by continuous casting and rolling are punched at high speed to form grid sheets.

[0003] CN204735649U discloses a high-speed feeding mechanism for a flexible sheet stamping device, which forms an upper arch of the flexible sheet on the feeding side of a punching station by using a feed roller pair, determines the length of the flexible sheet reserved in the upper arch by a distance sensor, and guides out the upper arch to achieve rapid feeding of the punching station.

[0004] The defects of the above structure are: first, the top of the upper arch of the flexible sheet is prone to shaking due to equipment vibration or environmental factors, affecting the detection accuracy of the distance sensor; the feed amount of high-speed punching is controlled by the feed clamping roller. Although the detection accuracy of the distance sensor will not significantly affect the punching accuracy, the local bending of the flexible sheet will cause internal stress or local deformation; second, when the thickness of the flexible sheet or the single feed length of punching changes, it is necessary to adjust the position of multiple guide rollers in the guide mechanism and / or increase or decrease the number of guide rollers accordingly, and the equipment adjustment work is relatively cumbersome. Utility Model Content

[0005] One of the purposes of the utility model is to overcome the defects in the prior art and provide a high-speed punching and feeding mechanism for a lead strip, which uses a lifting support member to position the upwardly arched lead strip, reduce the shaking of the lead strip, and simplify the guiding structure of the upwardly arched lead strip.

[0006] In order to achieve the above technical effects, the technical solution of the utility model is: a high-speed punching and feeding mechanism for lead strip, comprising:

[0007] A feed pair of rollers having a first roller gap for clamping and feeding the lead strip;

[0008] A discharge roller pair, arranged on the discharge side of the feed roller pair in the lead strip conveying direction, and having a second roller gap for clamping and feeding the lead strip;

[0009] The lead strip supporting mechanism comprises a supporting member located between the feeding roller pair and the discharging roller pair, and a lifting driving member driving the supporting member to move along the plumb bob direction; the supporting member has a lead strip supporting surface facing upward.

[0010] The preferred technical solution is that the lead belt supporting surface is the roller surface of a single roller, or is a combination of the roller surfaces of at least two rollers.

[0011] A preferred technical solution is that the supporting member is provided with a pressure sensor, and / or a lead strip tension sensor is provided between the feed roller pair and the discharge roller pair.

[0012] A preferred technical solution is that the supporting member includes two side blocks arranged in sequence along the lead tape conveying direction, and a top supporting member sandwiched between the side blocks and arranged higher than the side blocks, and the spacing between the side blocks along the lead tape conveying direction is adjustable.

[0013] A preferred technical solution is that the lifting drive member is configured to lift the supporting member to at least two height positions.

[0014] A preferred technical solution is that the side stopper has a side stopper surface that abuts against the lead belt, and the side stopper surfaces are symmetrically arranged on both sides of the top supporting member.

[0015] A preferred technical solution is that the side stopper comprises a roller seat and at least two side stop rollers rotatably connected to the roller seat, and the side stop surface is composed of the roller surfaces of the side stop rollers of the roller seat.

[0016] A preferred technical solution is that the side stopper has a first end and a second end opposite to each other, the first end is arranged higher than the second end, and the distance between the first end and the supporting member along the lead strip conveying direction is adjustable.

[0017] The second purpose of the utility model is to provide a punching and cutting device, including a reeling mechanism, a punching and cutting mechanism and a reeling mechanism, and also includes the above-mentioned high-speed punching and cutting feeding mechanism for lead strip, and the high-speed punching and cutting feeding mechanism for lead strip is arranged between the reeling mechanism and the punching and cutting mechanism.

[0018] The advantages and beneficial effects of the utility model are:

[0019] The lead strip uses a high-speed punching and feeding mechanism to support the upwardly arched lead strip through a lifting support member, positioning the lead strip in the plumb direction and the horizontal direction of the lead strip feeding, thereby eliminating the shaking of the arched structure of the lead strip and avoiding the problem of increased internal stress and / or local deformation of the lead strip caused by further shaking of the arched structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 2 is a schematic structural diagram of a high-speed punching and feeding mechanism for lead strip according to an embodiment;

[0021] Figure 2 2 is a schematic structural diagram of another use state of the high-speed punching and feeding mechanism for lead strip in the embodiment;

[0022] Figure 3 is a schematic diagram of the three-dimensional structure of a supporting member in another embodiment;

[0023] Figure 4 yes Figure 3A schematic diagram of the three-dimensional structure of the middle supporting member in another use state;

[0024] Figure 5 is a schematic structural diagram of a punching and cutting device in an embodiment;

[0025] In the figure: 1. Feed roller pair; 2. Discharge roller pair; 3. Lead belt supporting mechanism; 31. Supporting member; 311. Side stop member; 311a. Roller seat; 311b. Side stop roller; 312. Top supporting member; 313. Base; 314. Long hole; 315. Locking nut; 32. Lifting drive member; 4. Pressure sensor. DETAILED DESCRIPTION

[0026] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0027] In the description of the present application, it should be noted that, unless otherwise specified, “plurality” means more than two; the terms “upper”, “lower”, “left”, “right”, “inside”, “outside”, etc., indicating directions or positional relationships, are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application.

[0028] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0029] Example

[0030] like Figure 1-2 As shown, the lead strip high-speed punching feeding mechanism of the embodiment comprises a feed roller pair 1, a discharge roller pair 2 and a lead strip supporting mechanism 3; the feed roller pair 1 has a first roller gap for clamping and feeding the lead strip; the discharge roller pair 2 is arranged in the lead strip conveying direction of the feed roller pair 1 ( Figure 1 On the discharging side (in the direction indicated by the unidirectional arrow in the figure), the discharging roller pair 2 has a second roller gap for clamping the lead strip; the lead strip supporting mechanism 3 includes a supporting member 31 located between the feeding roller pair 1 and the discharging roller pair 2, and a lifting driving member 32 for driving the supporting member 31 to move along the plumb direction; the supporting member 31 has a lead strip supporting surface a facing upward.

[0031] Both feeding and discharging are based on the lead tape between the feed roller pair 1 and the discharging roller pair 2. When the feed roller pair 1 starts and the discharging roller pair 2 stops, the length of the lead tape between the feed roller pair 1 and the discharging roller pair 2 increases; when the feed roller pair 1 stops and the discharging roller pair 2 starts, the length of the lead tape between the feed roller pair 1 and the discharging roller pair 2 decreases.

[0032] The lead strip used to produce grids is mainly composed of lead, which is soft. Its internal stress or local deformation will further affect the performance and / or service life of the plate. The existing guide structure composed of several corner rollers and transverse limiting rollers is only used to limit the position of the upper and lower sections of the lead strip arch and the corner radius. More transverse limiting rollers must be set to achieve the positioning of lead strips of different lengths.

[0033] The lead strip is introduced into the lead strip supporting mechanism 3 via the feed roller pair 1, and is led out of the lead strip supporting mechanism 3 via the discharge roller pair 2. The supporting member 31 is used to exert an upward force on the bottom surface of the highest point of the upwardly arched lead strip, that is, the bottom surface of the highest point of the arch of the lead strip abuts against the lead strip supporting surface a. The center of gravity of the arched structure of the lead strip is shifted upward, and positioning the highest point of the arch is more conducive to fixing the position of the lead strip.

[0034] The lead belt supporting surface a slides and rubs against the continuously fed lead belt, and the size of the friction surface depends on the structural part where the lead belt supporting surface a is located.

[0035] like Figure 1 As shown, in another preferred embodiment, the lead strip supporting surface a is the roller surface of a single roller, or is a combination of the roller surfaces of at least two rollers.

[0036] Although the lead belt has self-lubricating properties, sliding friction will inevitably cause the lead belt to wear. Compared with surface contact sliding friction, the contact surface between the lead belt and the roller surface is smaller, which is conducive to reducing the wear of the lead belt during transportation. Further, the roller is rotatably arranged in the support member 31, for example, connected to the base of the support member 31 through a bearing.

[0037] like Figure 1 As shown, in another preferred embodiment, the supporting member 31 is provided with a pressure sensor 4, and / or a lead strip tension sensor is provided between the feed roller pair 1 and the discharge roller pair 2.

[0038] The lead tape exerts an up and down force on the supporting member 31 due to its own weight and its tension. By obtaining the pressure value of the pressure sensor 4 and / or the tension value of the lead tape surplus, the feeding speed of the feed roller 1 is matched with the rising speed of the supporting member 31. On the contrary, if the tension of the lead tape is too large during the rising process of the supporting member 31, the probability of defects such as the extension and deformation of the lead tape is increased.

[0039] Specifically, the lead strip tension sensor is arranged between the feed roller pair 1 and the supporting member 31 , and / or between the supporting member 31 and the discharge roller pair 2 .

[0040] like Figure 3-4 As shown, in another preferred embodiment, the supporting member 31 includes two side blocks 311 arranged in sequence along the lead tape conveying direction, and a top supporting member 312 sandwiched between the side blocks 311 and arranged higher than the side blocks 311, and the spacing of the side blocks 311 along the lead tape conveying direction is adjustable.

[0041] The side stopper 311 determines the span of the lead tape arch structure along the lead tape conveying direction.

[0042] Specifically, in this embodiment, the supporting member 31 also includes a base 313, and the side block 311 and the top supporting member 312 are both connected to the base 313. The base 313 is provided with a long hole extending along the lead belt conveying direction. The side block 311 realizes the adjustment of the position of the side block 311 by means of a screw rod passing through the long hole 314 and a locking nut 315 matched with the screw thread.

[0043] In some embodiments, the lifting drive member 32 is configured to lift the supporting member 31 to at least two height positions.

[0044] The lead strip feed length for a single punching operation depends on the size of the grid and the size of the punching die. By adjusting the position of the support member 31 in its lifting path, the lead strip length in the arched structure is adjusted to a predetermined value to suit the punching production of grids of different sizes.

[0045] In some embodiments, the side stopper 311 has a side stopper surface that abuts against the lead belt, and the side stopper surfaces are symmetrically arranged on both sides of the top support member 312 so that the arched structure of the lead belt tends to be symmetrical and the pressure of the lead belt on the support member 31 tends to be balanced.

[0046] As an alternative to adjusting the position of the side stopper 311 along the lead tape conveying direction, the side stopper 311 can also be moved toward or away from each other by means of a bidirectional ball screw or the like.

[0047] like Figure 3-4 As shown, in another preferred embodiment, the side stopper 311 includes a roller seat 311a and at least two side stop rollers 311b rotatably connected to the roller seat 311a, and the side stop surface is composed of the roller surface of the side stop roller 311b of the roller seat 311a. Similar to the idler, the side stop roller 311b is used to contact the lead belt, which is beneficial to reduce the wear of the lead belt during the conveying process.

[0048] like Figure 3-4 As shown, in another preferred embodiment, the side stopper 311 has a first end and a second end opposite to each other, the first end is arranged higher than the second end, and the distance between the first end and the top supporting member 312 along the lead tape conveying direction is adjustable.

[0049] Taking the upward side baffle 311 located between the feed roller pair 1 and the supporting member 31 as an example, its function is to guide the lead strip to arch upward to the top of the supporting member 31. When the distance between the first end and the top supporting member 312 increases, the corner radius of the lead strip at the top supporting member 312 increases, which is more suitable for lead strips with thicker thickness. At the same time, the diameter of the roller used as the top supporting member 312 can be selected to be smaller to reduce the inertial kinetic energy of the supporting member 31 and reduce the braking load of the lifting drive member 32.

[0050] In this embodiment, the screw rod passing through the long hole 314 is the rotating shaft of the side block 311. The side block 311 is rotated around the rotating shaft, and then the locking nut 315 is tightened to adjust the distance between the first end and the top support 312 along the lead belt conveying direction.

[0051] like Figure 5 As shown, the punching and cutting equipment of the embodiment includes an unwinding mechanism, a punching and cutting mechanism and a winding mechanism, and also includes the above-mentioned high-speed punching and cutting feeding mechanism for lead strip, and the high-speed punching and cutting feeding mechanism for lead strip is arranged between the unwinding mechanism and the punching and cutting mechanism.

[0052] Furthermore, the lead strip between the unwinding mechanism and the lead strip high-speed punching feeding mechanism is also provided with an unwinding allowance, and two lead strip allowances are provided to meet the production rhythm of high-speed punching of the grid production.

[0053] The working process of the high-speed punching and feeding mechanism for lead strip is as follows:

[0054] S1: When the punching mechanism is working, the discharge roller pair 2 stops and clamps the lead strip, the feed roller pair 1 starts, and the lead strip is fed between the feed roller pair 1 and the discharge roller pair 2. While the lead strip is arched upward, the lifting drive member 32 drives the supporting member 31 upward until the feed roller pair 1 stops feeding and the lead strip supporting surface a of the supporting member 31 abuts against the bottom surface of the arched top of the lead strip;

[0055] S2: When the punching and cutting mechanism is on standby, the feed roller pair 1 stops and the discharge roller pair 2 starts to lead the lead strip to the punching and cutting station. The length of the lead strip between the feed roller pair 1 and the discharge roller pair 2 gradually decreases, and the lifting drive member 32 drives the supporting member 31 downward until the discharge roller pair 2 stops discharging.

[0056] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A high-speed punching and feeding mechanism for lead strip, characterized in that: include: A feed pair of rollers having a first roller gap for clamping and feeding the lead strip; A discharge roller pair, arranged on the discharge side of the feed roller pair in the lead strip conveying direction, and having a second roller gap for clamping and feeding the lead strip; The lead strip supporting mechanism comprises a supporting member located between the feeding roller pair and the discharging roller pair, and a lifting driving member driving the supporting member to move along the plumb bob direction; the supporting member has a lead strip supporting surface facing upward.

2. The high-speed punching and feeding mechanism for lead strip according to claim 1, characterized in that: The lead belt supporting surface is the roller surface of a single roller, or is composed of the roller surfaces of at least two rollers.

3. The high-speed punching and feeding mechanism for lead strip according to claim 1, characterized in that: The supporting member is provided with a pressure sensor, and / or a lead strip tension sensor is provided between the feed roller pair and the discharge roller pair.

4. The high-speed punching and feeding mechanism for lead strip according to claim 2, characterized in that: The supporting member comprises two side blocks arranged in sequence along the lead strip conveying direction, and a top supporting member sandwiched between the side blocks and arranged higher than the side blocks. The spacing between the side blocks along the lead strip conveying direction is adjustable.

5. The high-speed punching and feeding mechanism for lead strip according to claim 1, characterized in that: The lifting drive member is configured to lift the supporting member to at least two height positions.

6. The high-speed punching and feeding mechanism for lead strip according to claim 4, characterized in that: The side stopper has a side stopper surface that abuts against the lead belt, and the side stopper surfaces are symmetrically arranged on both sides of the top supporting member.

7. The high-speed punching and feeding mechanism for lead strip according to claim 6, characterized in that: The side stopper comprises a roller seat and at least two side stop rollers rotatably connected to the roller seat, and the side stop surface is composed of the roller surfaces of the side stop rollers of the roller seat.

8. The high-speed punching and feeding mechanism for lead strip according to claim 7, characterized in that: The side stopper has a first end and a second end opposite to each other, the first end is arranged higher than the second end, and the distance between the first end and the supporting member along the lead strip conveying direction is adjustable.

9. A punching and cutting device, comprising an unwinding mechanism, a punching and cutting mechanism and a winding mechanism, characterized in that: It also includes the high-speed punching and feeding mechanism for lead strip as described in any one of claims 1 to 8, and the high-speed punching and feeding mechanism for lead strip is arranged between the unwinding mechanism and the punching mechanism.

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