Strip cutting apparatus

Abstract

This application relates to the field of pre-processing equipment technology, and more particularly to a strip cutting device, which includes a cutting module comprising a first punch and a second punch arranged opposite to each other; a connecting structure connected to a driving device and the first punch respectively, and driven by the driving device to move the first punch toward or away from the second punch to cut the strip; and a lifting module fixedly connected to the cutting module and following the movement of the first punch to lift the waste portion of the strip. The lifting plate of the strip cutting device provided in this application is fixedly connected to the second punch through a connector, and its arm is received in the receiving groove of the second punch, ensuring that the lifting action is synchronized with the cutting, preventing the waste portion of the strip from getting stuck in the equipment, and allowing for rapid removal of waste; the bracket and the limiting component cooperate to form a limiting structure to precisely control the stroke of the lifting plate and prevent over-punching or deviation.

Description

[Technical Field]

[0001] This application relates to the field of pre-processing equipment technology, and in particular to a strip cutting device. [Background Technology]

[0002] In the pretreatment process of metal terminal overmolding, the protective corners on the strip need to be removed first, and then the strip with terminals is cut into individual segments to obtain individual terminal workpieces, so as to facilitate subsequent cleaning, adhesive primer coating and liquid silicone injection molding and other processes.

[0003] like Figure 1 As shown, the terminal strip 1 includes a terminal 11, a protective corner 13, and a connecting portion 15 that fixes the terminal 11 and the protective corner 13. The connecting portion 15 is provided with a positioning hole 151. In order to accurately cut the strip, the cutting equipment provided in the related art typically has a positioning post at its station that matches the positioning hole 151 of the strip. The terminal strip 1 is fitted onto the positioning post through the positioning hole 151 for quick and accurate positioning and installation at the station of the cutting equipment.

[0004] However, after the cutting equipment completes the cutting operation, the terminal 11, the protective corner 13, and the connecting part 15 separate from each other, while the connecting part 15, which belongs to waste material, is still sleeved on the positioning post of the cutting equipment. Because the positioning post and the positioning hole are matched and small in size, it is not easy to manually remove the waste material, which is time-consuming and laborious, resulting in low processing efficiency.

[0005] Furthermore, there is no corresponding collection device for the cut-off terminals 11. The large number of terminals 11 need to be manually loaded onto other equipment before subsequent operations can continue, which is time-consuming, labor-intensive, and has low processing efficiency.

[0006] In summary, how to quickly remove waste and collect workpieces is a problem that urgently needs to be solved by those skilled in the art. [Summary of the Invention]

[0007] To solve the above problems and quickly remove waste and collect workpieces, this application provides a strip cutting device.

[0008] This application provides a strip cutting device for cutting strips to obtain workpieces, comprising: a cutting module including a first punch and a second punch disposed opposite to each other; a connecting structure connected to a driving device and the first punch respectively, and driving the first punch to move toward or away from the second punch under the drive of the driving device to cut the strip; and a lifting module fixedly connected to the cutting module and following the movement of the first punch to lift the waste portion of the strip.

[0009] In some embodiments, the lifting module includes a lifting plate and a connector. The lifting plate is fixedly connected to the cutting module via the connector to follow the movement of the first punch. The lifting plate has an arm that is received in a receiving groove of the second punch. When the lifting plate moves, the arm leaves the receiving groove and lifts the waste portion of the material strip covering the receiving groove. The waste portion of the material strip is carried away from the second punch by the arm.

[0010] In some embodiments, the lifting module further includes a bracket and a limiting member. The bracket is fixedly connected to the lifting plate and has a through hole. One end of the limiting member is fixedly connected to the cutting module, and the other end passes through the through hole.

[0011] In some embodiments, the support includes a crossbeam and legs, the legs being fixedly connected to two opposite ends of the crossbeam; the through hole is provided at the foot, the size of the through hole being larger than the size of the limiting member, the limiting member limiting the support to move with the lifting plate within a certain stroke.

[0012] In some embodiments, a collection module is also included, which is fixedly connected to the cutting module and guides the workpiece for directional collection.

[0013] In some embodiments, the collection module includes a fixedly connected support body and a baffle, the support body and the baffle cooperating to form a slide rail groove.

[0014] In some embodiments, a workpiece carrier is also included, which has a loading cavity corresponding to the slide rail groove, the loading cavity being used to accommodate and load the workpiece.

[0015] In some embodiments, the first punch includes a cutting edge body with a clearance groove to avoid the workpiece.

[0016] In some embodiments, the inner wall of the slide rail has a surface with continuously varying curvature.

[0017] In some embodiments, the workpiece carrier further includes a gripping portion that protrudes outward from the outer surface of the workpiece carrier.

[0018] Compared to the cutting equipment involved in related technologies, the lifting plate of the strip cutting equipment provided in this application is fixedly connected to the second punch through a connector, and its arm is housed in the receiving groove of the second punch to ensure that the lifting action is synchronized with the cutting, avoid the waste part of the strip getting stuck in the equipment, and can quickly remove waste; the bracket and the limiting component cooperate to form a limiting structure to precisely control the stroke of the lifting plate and prevent over-punch or deviation. [Attached Image Description]

[0019] Figure 1A partial structural diagram of a terminal strip provided for related technologies.

[0020] Figure 2 This application provides a material strip cutting device according to one embodiment.

[0021] Figure 3 for Figure 2 The diagram shows an exploded view of the three-dimensional structure of the strip cutting equipment.

[0022] Figure 4 for Figure 2 The diagram shows a cross-sectional view of the strip cutting equipment.

[0023] Figure 5 for Figure 2 The diagram shows a partial assembly of the strip cutting equipment in one state.

[0024] Figure 6 for Figure 2 The diagram shows a partial assembly of the strip cutting equipment in another state. 【Detailed Implementation Methods】

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0026] In the description of the embodiments of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0027] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0028] The strip cutting device 2 is used to cut strip materials to obtain workpieces for processing; specifically, it is used to cut single-sided strip materials, such as connector terminals. Please refer to [reference needed]. Figure 1 and Figure 2 , Figure 2 This application provides a material strip cutting device according to one embodiment, which will be described using the cutting of the terminal material strip 1 as an example.

[0029] The material strip cutting device 2 includes a cutting module 21, a connecting structure 23, a lifting module 25, a collecting module 27, and a workpiece carrier 29. The cutting module 21 includes a first punch 211 and a second punch 213 arranged opposite to each other, with the terminal material strip 1 fixedly mounted on the second punch 213. The connecting structure 23, the lifting module 25, and the collecting module 27 are respectively fixedly connected to the cutting module 21, and the workpiece carrier 29 is detachably connected to the collecting module 27. The connecting structure 23 is also connected to other driving devices (not shown), which drive the first punch 211 to move toward or away from the second punch 213 to cut the cutting points 111 and 131 of the terminal material strip 1. The lifting module 25 moves synchronously with the first punch to lift the discarded connecting portion 15, allowing the waste material to detach from the cutting module 21 for easy removal. The cut terminals 11 fall into the collection module 27 and are guided and oriented by the collection module 27 to be loaded onto the workpiece carrier 29. The workpiece carrier 29 allows for batch transfer of the terminals between the cutting operation and other processes, resulting in efficient processing and saving time and labor.

[0030] It is understood that the drive device can be an independent drive device, such as a motor, cylinder, or hydraulic device; or it can utilize the drive device of other processing equipment, such as the servo drive system of a CNC (Computer Numerical Control) based machining center.

[0031] Please see Figure 3 , Figure 3 for Figure 2 The diagram shows an exploded three-dimensional view of the material strip cutting equipment. The cutting module 21 includes a first punch 211, a second punch 213, an adjusting component 215, and a mounting base 217. The assembly of the first punch 211, the second punch 213, and the adjusting component 215 is detachably connected to the mounting base 217 and fixedly installed to the processing site via the mounting base 217, for example, by bolting or welding. In this embodiment, the second punch 213 is detachably connected to the mounting base 217 by bolting. The first punch 211 and the second punch 213 are respectively fixedly connected to the adjusting component 215. The two punches move relative to each other or away through the adjusting component 215, cooperating to form a shearing force to cut the cutting points 111 and 131 of the terminal material strip 1.

[0032] For ease of explanation or illustration, in this embodiment, the first punch 211 and the second punch 213 are defined to move relative to each other along the first direction Z.

[0033] Specifically, see reference Figure 3 and Figure 4 , Figure 4 for Figure 2 The diagram shows a cross-sectional view of the strip cutting equipment. The adjusting assembly 215 includes a pre-pressing component 2151, a guide post 2153, and a guide sleeve 2155. The pre-pressing component 2151 is located between the first punch 211 and the second punch 213, and is fixedly connected to the first punch 211, for example, by bolts. The pre-pressing component 2151 has a first through hole 21511, and the second punch 213 has a corresponding second through hole 2131. The inner diameters of the first through hole 21511 and the second through hole 2131 match the size of the guide sleeve 2155, which is respectively received in the first through hole 21511 and the second through hole 2131. The guide sleeves 2155, respectively received in the first through hole 21511 and the second through hole 2131, are sleeved on the same guide post 2153, with a transition fit between the guide sleeve 2155 and the guide post 2153.

[0034] The guide post 2153 is a cylindrical structural component that provides guidance for relative motion. One end is a fixed end 21531, and the other end is a guiding end 21533. Multiple oil grooves 21535 are provided between the fixed end 21531 and the guiding end 21533, and these grooves are spaced apart. The fixed end 21531 is fixedly connected to the first punch 211. Specifically, the first punch 211 has a third through hole 2111, and the guide post 2153 is partially housed within this third through hole 2111. The centerlines of the first through hole 21511, the second through hole 2131, the third through hole 2111, the guide sleeve 2155, and the guide post 2153 overlap and are all parallel to the first direction. The fixed end 21531 is fixedly connected to the inner wall of the third through hole 2111, for example, by welding or riveting.

[0035] The guide sleeve 2155 is a hollow tube structure that provides guidance for relative movement. The inner wall of the hollow tube is fitted with the guide post 2153 to achieve relative sliding. One end of the guide sleeve 2155 is a head 21551, which is fixedly connected to the inner wall of the first through hole 21511 or the second through hole 2131, for example, by riveting, to prevent the guide sleeve 2155 from being pulled out of the first through hole 21511 or the second through hole by the guide post 2153.

[0036] In this embodiment, there are two guide posts 2153 and four guide sleeves 2155. In other embodiments, the number of guide posts 2153 may be more or less, but at least one. The number of guide posts 2153 is related to the overall specifications of the strip cutting equipment 2 and can be adjusted according to actual needs. The number of guide sleeves 2155 is related to the number of guide posts 2153, and the number of guide sleeves 2155 is an integer multiple of the number of guide posts 2153.

[0037] Please refer to the following: Figure 4 The pre-compression member 2151 is correspondingly arranged with the second punch 213 so that they are flush along the shearing plane α, which is parallel to the first direction Z. The cutting points 111 and 113 are located in the common plane when the terminal strip 1 is loaded onto the strip cutting device 2. It can be understood that the cutting module 21 will apply a shearing force to the terminal strip 1 along the shearing plane α.

[0038] The first punch 211 includes a main body 2113 and a cutting edge 2115 fixedly connected. The main body 2113 has two opposing first ends and second ends. The first ends are fixedly connected to the connecting structure 23, for example, by bolts or welding. One end of the cutting edge 2115 is fixedly connected to the second end of the main body 2113, and the opposite end abuts against the side of the preload member 2151 facing the shearing surface α. Please refer to the reference section. Figure 2 The blade body 2115 has a clearance groove 21151 on the side away from the shearing surface α. The shape and size of the clearance groove 21151 are matched to the terminal 11 to avoid the terminal 11. The number of clearance grooves 21151 corresponds to the number of terminals 11, and multiple clearance grooves 21151 are spaced apart. In this embodiment, eight clearance grooves 21151 are used as an example for illustration. It can be understood that in other embodiments, the number of clearance grooves 21151 may be more or less, but at least one.

[0039] To limit the shearing force provided by the first punch 211, the cutting module 21 further includes a buffer member 219. One end of the buffer member 219 abuts against the first punch 211, and the other end abuts against the pre-compression member 2151. The first punch 211 moves under the drive of the connecting structure 23. After a certain stroke, the pre-compression member 2151 abuts against the second punch 213. The first punch 211 and the pre-compression member 2151 cooperate to compress the buffer member 219. The buffer member 219 provides an opposing force to partially offset the acceleration of the first punch 211, thereby limiting the shearing force provided by the first punch 211 to the terminal strip 1. The buffer member 219 is an elastic material, such as silicone, rubber, or a metal spring. In this embodiment, the buffer member 219 can be silicone.

[0040] Please see Figure 5 , Figure 5 for Figure 2 The diagram shows a partial assembly of the strip cutting equipment in one state. Figure 5 The assembly relationship between the terminal strip 1 and the strip cutting device 2 is shown. A positioning post 2133 is provided on the side of the second punch 213 near the pre-pressing member 2151, and the positioning post 2133 is adapted to the positioning hole of the terminal strip 1. The connecting portion 15 of the terminal strip 1 is sleeved on the positioning post 2133 through the positioning hole 151, and the protective corner 1313 and the terminal 11 of the terminal strip 1 are suspended. After the cutting operation is completed, the terminal 11 is obtained as the workpiece, and the connecting portion 15 is the discarded part.

[0041] Please refer to the following: Figure 4 and Figure 5 The collection module 27 includes a support body 271 and a baffle 273 fixedly connected. The support body 271 is fixedly connected to the side of the mounting base 217 near the shear surface α, for example, by screws or welding. The side of the support body 271 away from the mounting base 217 is an inclined arc surface. The baffles 273 are spaced apart on the inclined arc surface, and the baffles 273 and the inclined arc surface cooperate to form a slide rail groove 275. The end of the slide rail groove 275 near the shear surface α is the inlet end 2751, and the opposite end is the outlet end 2753. The direction from the inlet end 2751 to the outlet end 2753 is the sliding direction X of the terminal 11.

[0042] The slide rail groove 275 includes a first sliding section 2755 and a second sliding section 2757 connected along the sliding direction X. The slope of the first sliding section 2755 is greater than the slope of the second sliding section 2757. In this embodiment, the first sliding section 2755 and the second sliding section 2757 are directly connected. In other embodiments, the first sliding section 2755 and the second sliding section 2757 may also be indirectly connected through other sliding sections. It is understood that the inner wall of the slide rail groove 275 is a surface with continuously changing curvature to prevent damage to the terminal 11 due to excessive impact or friction.

[0043] The support 271 has a fixing groove 277 on the side away from the shear surface α. The fixing groove 277 is adapted to the workpiece carrier 29 so that the inner wall of the fixing groove 277 engages with the workpiece carrier 29. The workpiece carrier 29 has a loading cavity 291 corresponding to the slide rail groove 275. The loading cavity 291 is used to accommodate the terminal 11 and is connected to the outside space through an opening 293. The depth of the fixing groove 277 is matched to the opening 293 so that the opening 293 is fully exposed. The workpiece carrier 29 also has a gripping part 295, which protrudes outward from the outer surface of the workpiece carrier 29. By gripping the gripping part 295, the workpiece carrier 29 can be quickly transferred.

[0044] Please refer to the following: Figure 3 , Figure 4 and Figure 5 The lifting module 25 includes a bracket 251, a lifting plate 253, a connector 255, and a limiting member 257. The bracket 251 is arranged adjacent to the cutting module 21. Specifically, in this embodiment, the bracket 251 is located at the end of the cutting module 21 away from the shearing surface α.

[0045] The support 251 has a gantry structure, including a crossbeam 2511 and legs 2513. The legs 2513 are fixedly connected to two opposite ends of the crossbeam 2511, and the lifting plate 253 is fixedly connected to one side of the crossbeam, for example, by bolts or welding. The lifting plate 253 has an arm 2531, and the second punch 213 has a corresponding receiving groove 2135 at one end near the first punch 211. The arm 2531 is received in the receiving groove 2135, which extends from one side of the second punch 213 near the shearing surface α to the opposite side. One end of the arm 2531 is fixedly connected to the lifting plate 253, and the opposite end extends toward the shearing surface α.

[0046] Since the strip 1 is fixedly installed on the strip cutting equipment through the positioning hole, the connecting part 15 of the strip 1 covers the receiving groove. The lifting plate 253 and the pre-pressing member 2151 are fixedly connected through the connecting member 255. The driving device drives the connecting structure 23 to move the first punch 211, which in turn moves the pre-pressing member 2151, which in turn moves the connecting member 255, which in turn moves the lifting plate 253. The connecting member 255 is a columnar structure. One side of the connecting member 255 is fixedly connected to the lifting plate 253, and the adjacent other side is fixedly connected to the first punch 211, for example, by bolt fixing or riveting fixing. When the lifting plate 253 moves, the arm 2531 of the lifting plate 253 leaves the receiving groove 2135 and lifts the connecting part 15 of the terminal strip 1, so that the connecting part 15 is separated from the positioning post 2133, which facilitates the removal of waste material.

[0047] The leg 2513 of the bracket 251 has a through hole 25131, which extends from the side of the leg 2513 near the mounting base 217 to the side of the leg 2513 away from the mounting base 217. One end of the limiting member 257 is fixedly connected to the mounting base 217, for example, by bolts or riveting, and the other end passes through the through hole 25131. The size of the through hole 25131 is larger than the size of the limiting member 257. When the bracket 251 is moved by the lifting plate 253, the limiting member 257 allows the bracket 251 to move within a certain stroke. After exceeding a certain stroke, it will prevent the bracket 251 from continuing to move. With this setting, the lifting plate 253 can only move within a certain stroke to avoid the lifting plate 253 moving too far and throwing the connecting part 15 to other positions of the equipment during the movement.

[0048] Please refer to the following: Figures 1 to 6 , Figure 6 for Figure 2 The diagram shows a partial assembly of the strip cutting equipment in another configuration. The workflow of the strip cutting equipment 2 is described below:

[0049] After the slitting operation, the resulting terminal strip 11 is Figure 1 As shown. The terminal strip 11 is fixedly installed on the strip cutting device 2 through the positioning hole 151. The external driving device drives the connecting structure 23 to move the first punch 211 toward the second punch 213 to cut the cutting points 111 and 131 of the terminal strip 1.

[0050] After the cutting operation is completed, the terminal 11 falls into the inlet end 2751 of the collection module 27 and slides along the slide rail groove 275 to the outlet end 2753. Under inertia, the terminal 11 enters the loading cavity 291 of the workpiece carrier 29 through the opening 293. By transferring the workpiece carrier 29, the terminals 11 are transferred in batches for other processing operations.

[0051] After the cutting action is completed, the external driving device drives the connecting structure 23 to move the first punch 211 away from the second punch 213, thereby driving the pre-pressing member 2151 to move, which in turn drives the connecting member 255 to move, and in turn drives the lifting plate 253. Simultaneously with the movement of the lifting plate 253, the arm 2531 of the lifting plate 253 leaves the receiving groove 2135 and lifts the connecting portion 15 of the terminal strip 1, causing the connecting portion 15 to disengage from the positioning post 2133, facilitating the removal of waste material.

[0052] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A strip cutting device for cutting strips to obtain workpieces, characterized in that, include: The cutting module includes a first punch and a second punch that are positioned relative to each other. The connection structure is connected to the driving device and the first punch respectively, and under the drive of the driving device, the first punch moves toward or away from the second punch to cut the material strip; and The material lifting module is fixedly connected to the cutting module and moves with the first punch to lift the waste portion of the material strip.

2. The strip cutting equipment according to claim 1, characterized in that, The lifting module includes a lifting plate and a connector. The lifting plate is fixedly connected to the cutting module through the connector to follow the movement of the first punch. The lifting plate is provided with an arm, which is received in the receiving groove of the second punch. When the lifting plate moves, the arm leaves the receiving groove and lifts the waste portion of the material strip covering the receiving groove. The waste portion of the material strip is carried away from the second punch by the arm.

3. The strip cutting equipment according to claim 2, characterized in that, The lifting module also includes a bracket and a limiting member. The bracket is fixedly connected to the lifting plate and has a through hole. One end of the limiting member is fixedly connected to the cutting module, and the other end passes through the through hole.

4. The strip cutting equipment according to claim 3, characterized in that, The support includes a crossbeam and legs, with the legs fixedly connected to two opposite ends of the crossbeam; the through hole is located at the foot, and the size of the through hole is larger than the size of the limiting member, which limits the support to move with the lifting plate within a certain stroke.

5. The strip cutting equipment according to claim 1, characterized in that, It also includes a collection module, which is fixedly connected to the cutting module and guides the workpiece to achieve directional collection.

6. The strip cutting equipment according to claim 5, characterized in that, The collection module includes a fixedly connected support body and a baffle, which cooperate to form a slide rail groove.

7. The strip cutting equipment according to claim 6, characterized in that, It also includes a workpiece carrier, which has a loading cavity corresponding to the slide rail groove, and the loading cavity is used to accommodate and load the workpiece.

8. The strip cutting equipment according to claim 1, characterized in that, The first punch includes a cutting edge body, which is provided with a clearance groove to avoid the workpiece.

9. The strip cutting equipment according to claim 6, characterized in that, The inner wall of the slide rail groove has a surface with continuously varying curvature.

10. The strip cutting equipment according to claim 7, characterized in that, The workpiece carrier is also provided with a gripping part, which protrudes outward from the outer surface of the workpiece carrier.

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