A copper-aluminum strip trimming machine

Abstract

The application belongs to the technical field of metal strip processing, and discloses a copper-aluminum strip trimming machine, which comprises a base, an adjusting block is slidably connected to the base, a lower wedge-shaped block is slidably connected to the adjusting block, a shell is slidably connected to the top of the lower wedge-shaped block, a guide rail is formed in the shell, three groups of rail rods are slidably connected in the guide rail, and a driving assembly for driving the three rail rods to move synchronously is further arranged on the shell; the copper-aluminum strip trimming machine forms a trimming system with three-in-one rotation mode of trimming station, compensation station and standby station through the cyclic switching of the guide rail and the three groups of trimming wheels, and through the cooperative matching between the trimming station and the compensation station, the trimming wheels at the trimming station can undertake the main trimming operation when the equipment is normally used, the trimming wheels at the compensation station can be used as online standby and compensation execution elements, and the trimming wheels at the compensation station can be automatically compensated online when the trimming wheels are slightly worn and can be automatically replaced when the trimming wheels are severely worn.

Description

Technical Field

[0001] This invention belongs to the field of metal strip processing technology, specifically a copper and aluminum strip trimming machine. Background Technology

[0002] Copper-aluminum strip refers to a metal strip material made of copper or aluminum as the base material, which is widely used in electronics, power, heat dissipation and decoration. During the cutting or rolling process, copper-aluminum strip will produce irregular shapes. In order to avoid problems such as interlayer short circuits and stress concentration in subsequent processing, it is necessary to trim the edges. Trimming can make the edges smooth and uniform in width, which not only improves the dimensional accuracy and appearance quality of the product, but also helps to reduce the risk of strip breakage during high-speed operation, ensuring production stability and final performance.

[0003] In the trimming process of copper and aluminum strip, trimming machines generally use trimming wheels that roll and contact the edge of the strip. The trimming wheels are driven to rotate by the conveying motion of the strip itself. The V-groove is used to roll and extrude the edge of the strip, gradually correcting it to the target shape and size under the extrusion action of the V-groove, while eliminating edge burrs and irregular shapes. As the trimming operation continues, the working surface of the V-groove inevitably experiences progressive wear, causing the actual contour of the V-groove to deviate from the initial setting value. The extrusion angle and extrusion amount of the V-groove change accordingly, directly affecting the contact point between the trimming wheel and the edge of the strip and the extrusion shaping effect. This causes the actual trimming amount to drift, which in turn affects the width dimensional accuracy of the strip and the edge cut quality. Because this wear process is slow and insidious, the abnormality is only discovered when the finished product inspection shows dimensional deviations or excessive edge burrs, resulting in defective strips.

[0004] The wear compensation of the trimming wheel in existing copper and aluminum strip trimming equipment relies entirely on post-processing shutdown. It is impossible to correct the wear offset of the trimming wheel in real time during strip operation. When the operator finds that the trimming quality is not up to standard, the entire production line must be stopped, the trimming wheel shaft system must be disassembled, and the wear must be compensated by adding adjusting shims, or a brand new trimming wheel must be directly replaced when the wear is severe. This kind of compensation method not only leads to production interruption and reduced equipment utilization, but also the frequent disassembly and debugging process is time-consuming and long, which seriously affects the efficiency of continuous production operations. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a copper-aluminum strip trimming machine, which effectively solves the problem that the wear of the trimming wheel cannot be adaptively compensated online.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a copper-aluminum strip trimming machine, comprising a base, an adjusting block slidably connected to the base, a lower wedge block slidably connected to the adjusting block, a housing slidably connected to the top of the lower wedge block, a guide rail provided in the housing, three sets of rail rods slidably connected in the guide rail, a drive assembly for driving the three rail rods to move synchronously on the housing, a trimming wheel fixedly connected to each rail rod, and a trigger assembly on the housing;

[0007] The drive assembly drives the three track rods to slide along the guide rail, so that each trimming wheel sequentially switches to the trimming station, compensation station and standby station under the constraint of the guide rail, and the trimming station and compensation station are located on the same trajectory line.

[0008] Preferably, the guide track is formed by sequentially connecting an arc-shaped groove segment, a first inclined groove segment, a second inclined groove segment, a first vertical groove segment, a second vertical groove segment, and a horizontal groove segment.

[0009] Preferably, the triggering component includes a fixed frame fixedly connected to the housing, a toothed plate slidably connected to the fixed frame, a spring fixedly connected between the toothed plate and the fixed frame, and a control switch is also provided in the housing, with the toothed plate contacting the control switch during its movement.

[0010] Preferably, the drive assembly includes a drive shaft rotatably connected to the housing, and three sets of telescopic rods arranged in a ring array are fixedly connected to the drive shaft. One end of each telescopic rod is fixedly connected to a collar, and each collar is rotatably connected to a corresponding track rod. A control switch is electrically connected to a motor that drives the drive shaft to rotate, and is used to control the rotation of the drive shaft.

[0011] Preferably, each of the three track rods is fixedly connected with a gear, and when any track rod carrying the gear switches to the compensation position, the gear meshes with the gear plate.

[0012] Preferably, a one-way transmission unit is further provided between the gear and the track rod. The one-way transmission unit includes a single-sided helical tooth block that is laterally slidably connected in the track rod. A second spring is also provided between the single-sided helical tooth block and the track rod. A fixed ring is fixedly connected to the gear. A single-sided helical tooth groove is provided inside the fixed ring. The elastic force of the second spring drives the single-sided helical tooth block to engage with the single-sided helical tooth groove.

[0013] Preferably, a screw is provided on the base, and a threaded block is fixedly connected to the bottom of the adjusting block, and the screw is threadedly connected to the threaded block.

[0014] Preferably, the top of the adjusting block is provided with an inclined surface, and an inclined dovetail protrusion is fixedly connected to the inclined surface. The bottom of the lower wedge block is provided with an inclined surface that matches the inclined surface of the top of the adjusting block, and an inclined dovetail groove is opened at the bottom of the lower wedge block. The inclined dovetail protrusion and the inclined dovetail groove slide together.

[0015] The adjusting block is rotatably connected to a second screw, and a second threaded block is threadedly connected to the second screw. A vertical rod is fixedly connected to the second threaded block, and the vertical rod slides vertically in the lower wedge block.

[0016] Preferably, a screw three is provided on the lower wedge block, and a threaded block three is fixedly connected to the bottom of the housing, with the threaded block three threadedly connected to the screw three.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This invention forms a three-in-one rotating trimming system consisting of a trimming station, a compensation station, and a standby station through the cyclic switching of a guide rail and three sets of trimming wheels. The trimming station and the compensation station are set on the same side of the conveyor track of the strip. Through the coordinated operation between the trimming station and the compensation station, the trimming wheel at the trimming station undertakes the main trimming operation when the equipment is in normal use. The trimming wheel rolls and extrudes the edge of the strip to shape it, gradually correcting the edge of the strip to the target shape and size under the extrusion action of the trimming wheel. The trimming wheel at the compensation station serves as an online backup and compensation execution element. The trimming wheel at the compensation station works in a coordinated manner according to the wear condition of the trimming wheel at the trimming station. It automatically compensates online when the wear is slight and automatically switches positions when the wear is heavy. This realizes autonomous judgment and graded response to the wear degree of the trimming wheel, effectively avoiding the problems of batch dimensional deviation and defective products caused by wear accumulation.

[0019] 2. This invention employs three independent threaded adjustment mechanisms: one between the base and the adjusting block, one between the adjusting block and the lower wedge block, and one between the lower wedge block and the housing. The first screw and the first threaded block enable coarse horizontal adjustment of the adjusting block on the base. The second screw, the second threaded block, and the vertical rod work together to precisely feed the lower wedge block along the inclined surface, accurately controlling the height of the trimming wheel. The third screw and the third threaded block enable independent fine adjustment of the housing relative to the lower wedge block. These three independent, progressively advancing adjustment mechanisms correspond to coarse, fine, and micro-adjustments, allowing the trimming wheel to quickly and accurately align with the ideal trimming position of the strip edge. Furthermore, each adjustment mechanism maintains its position after adjustment due to the self-locking characteristic of the threaded pair, effectively preventing positional drift caused by vibration during trimming and significantly improving trimming dimensional accuracy and product consistency. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0021] In the attached diagram:

[0022] Figure 1 This is a schematic diagram of the structure of a copper-aluminum strip trimming machine according to the present invention;

[0023] Figure 2 This is an exploded view of the overall structure of the present invention;

[0024] Figure 3 This is a top view of the cross section of the shell structure in this invention;

[0025] Figure 4 This is a bottom view of the cross section of the shell structure in this invention;

[0026] Figure 5 This is an exploded view of the triggering component, track rod, gear, and one-way transmission unit in this invention.

[0027] Figure 6 This is a cross-sectional view of the fixed ring structure in this invention.

[0028] In the diagram: 1. Base; 11. Adjusting block; 12. Lower wedge block; 13. Housing; 14. Guide rail; 15. Rail rod; 16. Trimming wheel; 21. Fixing frame; 22. Tooth plate; 23. Spring 1; 24. Control switch; 31. Drive shaft; 32. Telescopic rod; 33. Collar; 41. Gear; 51. Single-sided helical tooth block; 52. Spring 2; 53. Fixing ring; 54. Single-sided helical tooth groove; 61. Screw 1; 62. Threaded block 1; 71. Inclined dovetail protrusion; 72. Inclined dovetail groove; 73. Screw 2; 74. Threaded block 2; 75. Vertical rod; 81. Screw 3; 82. Threaded block 3. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] Depend on Figures 1 to 6The present invention relates to a copper and aluminum strip trimming machine, comprising a base 1, an adjusting block 11 slidably connected to the base 1, a lower wedge block 12 slidably connected to the adjusting block 11, a housing 13 slidably connected to the top of the lower wedge block 12, a guide rail 14 provided in the housing 13, three sets of rail rods 15 slidably connected in the guide rail 14, a drive assembly for driving the three rail rods 15 to move synchronously on the housing 13, a trimming wheel 16 fixedly connected to each rail rod 15, and a trigger assembly on the housing 13.

[0031] The drive assembly drives the three track rods 15 to slide along the guide rail 14, so that each trimming wheel 16 sequentially switches to the trimming station, the compensation station and the standby station under the constraint of the guide rail 14, and the trimming station and the compensation station are located on the same trajectory line.

[0032] With this design, the two adjusting blocks 11 on the base 1 are symmetrically arranged to facilitate simultaneous trimming of both sides of the strip, ensuring that the trimming quality and progress on both sides of the strip are consistent, and avoiding uneven stress on the strip caused by unilateral trimming, which could lead to bending or warping deformation. At the same time, multiple sets of identical trimming structures can be set along the direction of strip movement. The V-groove trimming angle of the trimming wheel 16 in each set of trimming structures gradually decreases along the strip conveying direction, forming a graded trimming system from coarse shaping to fine shaping. When the strip passes through each set of trimming structures in sequence, the edge allowance is squeezed and shaped step by step, and the trimming load is reasonably distributed to multiple sets of trimming wheels, avoiding a single set of trimming wheels bearing too much shaping load and accelerating wear.

[0033] By setting the trimming station and the compensation station on the same conveying trajectory line of the strip, and setting the guide rail 14 in the housing 13, and cooperating with the drive assembly to drive the three track rods 15 to slide cyclically along the guide rail 14, the three sets of trimming wheels 16 can be switched sequentially to the trimming station, the compensation station and the standby station. The trimming station and the compensation station are arranged sequentially along the conveying direction of the strip, while the standby station is deviated from the conveying trajectory line of the strip.

[0034] When the trimming wheel 16 at the trimming station is not worn, the strip continues to be conveyed forward. The protruding part of the strip edge enters the V-groove of the trimming wheel 16. Since the thickness of the strip edge is greater than the gap corresponding to the trimming angle of the trimming wheel 16, the strip squeezes the working surface of the V-groove of the trimming wheel 16 during its forward movement. Relying on the contact friction and extrusion force between the strip and the trimming wheel 16, the trimming wheel 16 is driven to rotate, thereby performing roll forming on the strip edge. Under the extrusion action of the V-groove, the strip edge is gradually corrected to the target shape and size, compensating for the uneven conveying of the strip at the trimming station where the trimming wheel 16 is located on the same side of the strip. On the conveying track, the trimming wheel 16 maintains contact with the edge of the strip. However, since the trimming work has been basically completed at the trimming station, the excess material at the edge of the strip has been squeezed and shaped to the target size. There is no effective squeezing and shaping effect between the trimming wheel 16 at the compensation station and the strip. It only maintains a follow-up state and does not generate an active trimming effect. The trimming wheel 16 at the standby station deviates from the conveying track and does not contact the strip at all. It is in an idle standby state. During the continuous operation of the equipment, the operator can check, maintain or replace the trimming wheel 16 at the standby station without stopping the machine.

[0035] When the trimming wheel 16 at the trimming station experiences localized wear due to continuous operation, the area on the strip surface corresponding to the worn area cannot be completely compressed and shaped, forming a section to be trimmed. When this section to be trimmed is conveyed to the compensation station along with the strip, since the edge of the strip at this location still retains some uncompressed allowance, it makes effective compression contact with the trimming wheel 16 at the compensation station. The movement of the strip itself drives the trimming wheel 16 at the compensation station to rotate intermittently, performing online compensation compression and shaping on the localized defect section, thereby compensating for the trimming loss caused by localized wear at the trimming station.

[0036] When the wear of the trimming wheel 16 at the trimming station further intensifies to the point of losing its trimming capability, a continuous, extended section to be trimmed is formed on the surface of the strip. When this continuous section to be trimmed moves to the compensation station, it makes continuous and effective extrusion contact with the trimming wheel 16 at the compensation station, driving it to rotate continuously for a long time. This triggers the component to operate and controls the drive component to automatically complete the station cycle switching of each trimming wheel 16. The severely worn trimming wheel 16 at the trimming station is switched to the standby station, and the trimming wheel 16 that has participated in compensation trimming at the compensation station is switched to the trimming station to continue the operation. At the same time, the new or repaired trimming wheel 16 that has been maintained and replaced at the standby station is switched to the compensation station as a new backup compensation element, realizing the autonomous judgment and graded response to the wear degree of the trimming wheel 16.

[0037] Specifically, the guide track 14 is formed by sequentially connecting the arc-shaped groove segment, the first inclined groove segment, the second inclined groove segment, the first vertical groove segment, the second vertical groove segment, and the horizontal groove segment.

[0038] In this design, one end of the arc-shaped groove segment is connected to one end of the first inclined groove segment, and the other end of the arc-shaped groove segment is connected to one end of the second inclined groove segment. The other end of the first inclined groove segment is connected to one end of the first vertical groove segment, and the other end of the second inclined groove segment is connected to one end of the second vertical groove segment. The other ends of the first vertical groove segment and the second vertical groove segment are connected to each other through the transverse groove segment, so that the guide rail 14 forms a closed loop track with the ends connected. The first vertical groove segment is to provide the track rod 15 with longitudinal movement from the standby station, and it can slide directly to the side of the strip conveying track. The transverse groove segment realizes the transverse connection between the two vertical groove segments, so that each track rod 15 can sequentially pass through the arc-shaped groove segment, inclined groove segment, vertical groove segment and transverse groove segment along a fixed path. Thus, under the drive of the drive component, the three sets of trimming wheels 16 can sequentially switch between the trimming station, compensation station and standby station. The track structure is simple and the movement trajectory is clear, which ensures the reliability of station switching and the repeatability of positioning accuracy.

[0039] Specifically, the triggering component includes a fixed frame 21 fixedly connected to the housing 13, a toothed plate 22 slidably connected to the fixed frame 21, a spring 23 fixedly connected between the toothed plate 22 and the fixed frame 21, and a control switch 24 is also provided in the housing 13, and the toothed plate 22 contacts the control switch 24 during its movement.

[0040] With this design, when the trimming wheel 16 at the compensation station rotates continuously under the drive of the continuous trimming section of the strip, the continuous rotation drives the toothed plate 22 to slide along the fixed frame 21 against the elastic force of the spring 23 through the meshing action of the gear 41 and the toothed plate 22.

[0041] Specifically, the drive assembly includes a drive shaft 31 rotatably connected to the housing 13. Three sets of telescopic rods 32 arranged in a ring array are fixedly connected to the drive shaft 31. One end of each telescopic rod 32 is fixedly connected to a collar 33. Each collar 33 is rotatably connected to a corresponding track rod 15 and electrically connected to a motor that drives the drive shaft 31 to rotate, for controlling the rotation of the drive shaft 31.

[0042] In this design, the drive shaft 31 is driven by an external motor. When the toothed plate 22 moves to the end of its stroke, it contacts the control switch 24 located in the housing 13. Upon triggering, the control switch 24 sends an electrical signal to the drive assembly, controlling the drive shaft 31 to rotate. The drive shaft 31 then drives the three sets of telescopic rods 32 on it to rotate synchronously. Each telescopic rod 32 transmits its rotation to the corresponding track rod 15 via a collar 33, driving each track rod 15 to slide along the guide rail 14. Because the three sets of telescopic rods 32 are arranged in a circular array and correspond to the three track rods 15 respectively, the drive shaft... 31 rotates a specific angle (the specific angle is 120°), and the three track rods 15 simultaneously slide along the guide rail 14 to the next work position. The setting of the telescopic rod 32 allows the radial distance between the drive shaft 31 and the track rod 15 to be adaptively adjusted according to the trajectory change of the guide rail 14. The collar 33 ensures that the track rod 15 can slide freely along the guide rail 14 while rotating with the telescopic rod 32, realizing the transformation of the rotational motion of the drive shaft 31 into the sliding motion of the track rod 15 along the guide rail 14, thereby realizing the work position switching of each trimming wheel 16.

[0043] Specifically, gears 41 are fixedly connected to each of the three track rods 15. When any track rod 15 carries gear 41 to switch to the compensation position, the gear 41 meshes with the toothed plate 22.

[0044] With this design, during the cyclic switching of the three track rods 15 along the guide rail 14, only the gear 41 on the track rod 15 at the compensation station meshes with the toothed plate 22, while the gears 41 at the other two stations are disengaged from the toothed plate 22. This allows the rotation of the trimming wheel 16 at the compensation station to be transmitted to the toothed plate 22 through the gear 41, thereby driving the toothed plate 22 to slide and trigger the control switch 24. The rotation of the trimming wheel 16 at the trimming station and the standby station will not affect the state of the toothed plate 22, ensuring that the station switching is only triggered when the compensation station rotates continuously to a preset degree, thus avoiding false triggering. This structure achieves selective pickup of working status and unidirectional transmission of signals.

[0045] Specifically, a one-way transmission unit is also provided between the gear 41 and the track rod 15. The one-way transmission unit includes a single-sided helical tooth block 51 that is laterally slidably connected in the track rod 15. A second spring 52 is also provided between the single-sided helical tooth block 51 and the track rod 15. A fixing ring 53 is fixedly connected to the gear 41. A single-sided helical tooth groove 54 is provided inside the fixing ring 53. The elastic force of the second spring 52 drives the single-sided helical tooth block 51 to engage with the single-sided helical tooth groove 54.

[0046] In this design, gear 41 forms a one-way transmission engagement with single-sided helical tooth block 51 in track rod 15 through fixed ring 53 and its internal single-sided helical tooth groove 54. The direction in which the strip moves and drives the trimming wheel 16 to rotate is the first direction. When gear 41 rotates in the first direction, single-sided helical tooth block 51 is engaged in single-sided helical tooth groove 54 of fixed ring 53 under the elastic force of spring 2 52. Untrimmed strip moves and contacts trimming wheel 16 and drives it to rotate. The rotation of trimming wheel 16 drives track rod 15 to rotate. The rotation of track rod 15 is transmitted to gear 41 through single-sided helical tooth block 51. Gear 41 rotates and meshes with tooth plate 22, thereby driving tooth plate 22 to move.

[0047] When gear 41 rotates intermittently, the trimming wheel 16 at the trimming station wears down, and the strip will have some complete trimmed sections and some sections to be trimmed. When the strip with some sections to be trimmed moves to the compensation station, it contacts the trimming wheel 16 at the compensation station and the trimming wheel 16 at that station rotates. At this time, the gear 41 can rotate a certain angle by engaging with the single-sided helical tooth block 51 and the single-sided helical tooth groove 54 on the fixed ring 53 through the track rod 15, the single-sided helical tooth block 51 and the single-sided helical tooth groove 54 on the fixed ring 53. The distance that drives the meshing tooth plate 22 to move is insufficient to reach the control switch 24.

[0048] When the strip material with a partially complete trimmed section is switched to the trimming wheel 16 at the compensation station, the strip material with the complete trimmed section only makes contact with the trimming wheel 16 at the compensation station. The friction force at the contact is insufficient to support the rotation of the trimming wheel 16. At this time, the track rod 15 set at this station stops. The restoring force of the stretched spring 23 will pull the tooth plate 22 to reset. When the tooth plate 22 resets, the direction of rotation of the meshing gear 41 is the second direction. At this time, the single-sided helical tooth block 51, under the pushing action of the inclined surface of the single-sided helical tooth groove 54, overcomes the elastic force of the spring 2 52 and slides laterally into the track rod 15, disengaging from the single-sided helical tooth groove 54. At this time, the gear 41 rotates freely relative to the track rod 15 and cannot transmit the rotation to the track rod 15.

[0049] When gear 41 rotates continuously, the trimming wheel 16 at the trimming station is almost completely worn, and the strip will have an extended trimming section. When the strip contacts the trimming wheel 16 at the compensation station and drives it to rotate in the first direction for a long time, the rotation of the track rod 15 is transmitted to the gear 41 through the single-sided helical tooth block 51. The gear 41 rotates and meshes with the tooth plate 22, thereby driving the tooth plate 22 to move a longer distance until it reaches the control switch 24, so that the control switch 24 is triggered to realize the switching between stations. This setting can extend the service life of the trimming wheel 16 as much as possible, ensuring that switching is only performed when the trimming wheel 16 at the trimming station is severely damaged, thus improving the utilization efficiency of the trimming wheel 16.

[0050] Specifically, a screw 61 is provided on the base 1, and a threaded block 62 is fixedly connected to the bottom of the adjusting block 11. The screw 61 and the threaded block 62 are threadedly connected.

[0051] With this design, the operator can drive the adjusting block 11 to slide horizontally along the base 1 by rotating the screw 61 and utilizing the threaded engagement between the screw 61 and the threaded block 62. This allows the adjusting block 11 to be adjusted in the strip width direction. This adjustment provides a basic horizontal position setting for the entire housing 13 and all the trimming wheels 16 mounted on it. After the threaded pair is adjusted to the correct position, it maintains a stable position due to its self-locking characteristics, preventing positional drift caused by vibration during the trimming process.

[0052] Specifically, the top of the adjusting block 11 is provided with an inclined surface, and an inclined dovetail protrusion 71 is fixedly connected to the inclined surface. The bottom of the lower wedge block 12 is provided with an inclined surface that matches the inclined surface of the top of the adjusting block 11, and an inclined dovetail groove 72 is provided at the bottom of the lower wedge block 12. The inclined dovetail protrusion 71 and the inclined dovetail groove 72 are slidably engaged. A screw 73 is rotatably connected inside the adjusting block 11. A threaded block 74 is threadedly connected to the screw 73. A vertical rod 75 is fixedly connected to the threaded block 74. The vertical rod 75 slides vertically in the lower wedge block 12.

[0053] With this design, the lower wedge block 12 slides along the inclined surface of the adjusting block 11 through the inclined dovetail groove 72 at its bottom and the inclined dovetail protrusion 71 at the top of the adjusting block 11. The dovetail guide structure can bear the load perpendicular to the sliding direction while guiding, preventing the lower wedge block 12 from derailing. When the operator rotates the screw 73, the threaded block 74 moves along the axis of the screw 73 with the cooperation of the vertical rod 75. Due to the existence of the inclined surface, the lower wedge block 12 produces a vertical height change while moving horizontally, thereby driving the housing 13 and the trimming wheel 16 to achieve precise height adjustment. This adjustment mechanism realizes continuous and precise feeding of the working height of the trimming wheel.

[0054] Specifically, a screw 81 is provided on the lower wedge block 12, and a threaded block 82 is fixedly connected to the bottom of the housing 13, with the threaded block 82 threadedly connected to the screw 81.

[0055] With this design, when the operator rotates screw 3 81, the screw 3 81 and the threaded block 3 82 at the bottom of the housing 13 are threaded together to drive the housing 13 to slide horizontally relative to the lower wedge block 12. This enables independent fine-tuning of the housing 13 and the trimming wheel 16 relative to the lower wedge block 12. This adjustment mechanism is independent of the aforementioned horizontal coarse adjustment of screw 1 61 and the height fine adjustment of screw 2 73, and is progressively advanced, corresponding to the three levels of coarse adjustment, fine adjustment and fine adjustment, respectively. This allows the trimming wheel 16 to quickly and accurately align with the trimming position of the strip edge. Moreover, after each adjustment mechanism is adjusted to the correct position, it maintains a stable position by relying on the self-locking characteristics of the threaded pair, effectively avoiding positional drift caused by vibration during the trimming process.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A copper-aluminum strip trimming machine, comprising a base (1), characterized in that: An adjusting block (11) is slidably connected to the base (1), a lower wedge block (12) is slidably connected to the adjusting block (11), a housing (13) is slidably connected to the top of the lower wedge block (12), a guide rail (14) is provided in the housing (13), three sets of rail rods (15) are slidably connected in the guide rail (14), a driving component for driving the three rail rods (15) to move synchronously is also provided on the housing (13), a trimming wheel (16) is fixedly connected to each rail rod (15), and a trigger component is also provided on the housing (13). The drive assembly drives the three track rods (15) to slide along the guide rail (14), so that each trimming wheel (16) sequentially switches to the trimming station, compensation station and standby station under the constraint of the guide rail (14), and the trimming station and the compensation station are located on the same trajectory line.

2. The copper-aluminum strip trimming machine according to claim 1, characterized in that: The guide track (14) is formed by connecting the arc-shaped groove segment, the first inclined groove segment, the second inclined groove segment, the first vertical groove segment, the second vertical groove segment, and the horizontal groove segment end to end in sequence.

3. The copper-aluminum strip trimming machine according to claim 1, characterized in that: The triggering component includes a fixed frame (21) fixedly connected to the housing (13), a toothed plate (22) slidably connected to the fixed frame (21), a spring (23) fixedly connected between the toothed plate (22) and the fixed frame (21), and a control switch (24) is also provided in the housing (13). The toothed plate (22) contacts the control switch (24) during its movement.

4. A copper-aluminum strip trimming machine according to claim 3, characterized in that: The drive assembly includes a drive shaft (31) rotatably connected to the housing (13). Three sets of telescopic rods (32) arranged in a ring array are fixedly connected to the drive shaft (31). One end of each telescopic rod (32) is fixedly connected to a collar (33). Each collar (33) is rotatably connected to a corresponding track rod (15). A control switch (24) is electrically connected to a motor that drives the drive shaft (31) to rotate, and is used to control the rotation of the drive shaft (31).

5. A copper-aluminum strip trimming machine according to claim 3, characterized in that: Gears (41) are fixedly connected to each of the three track rods (15). When any track rod (15) carries the gear (41) to switch to the compensation station, the gear (41) meshes with the toothed plate (22).

6. A copper-aluminum strip trimming machine according to claim 5, characterized in that: A one-way transmission unit is also provided between the gear (41) and the track rod (15). The one-way transmission unit includes a single-sided helical tooth block (51) that is laterally slidably connected in the track rod (15). A second spring (52) is also provided between the single-sided helical tooth block (51) and the track rod (15). A fixed ring (53) is fixedly connected to the gear (41). A single-sided helical tooth groove (54) is provided inside the fixed ring (53). The elastic force of the second spring (52) drives the single-sided helical tooth block (51) to engage with the single-sided helical tooth groove (54).

7. A copper-aluminum strip trimming machine according to claim 1, characterized in that: The base (1) is provided with a screw rod (61), and the bottom of the adjusting block (11) is fixedly connected with a threaded block (62). The screw rod (61) and the threaded block (62) are threadedly connected.

8. A copper-aluminum strip trimming machine according to claim 1, characterized in that: The top of the adjusting block (11) is provided with an inclined surface, and an inclined dovetail protrusion (71) is fixedly connected to the inclined surface. The bottom of the lower wedge block (12) is provided with an inclined surface that matches the inclined surface at the top of the adjusting block (11), and an inclined dovetail groove (72) is provided at the bottom of the lower wedge block (12). The inclined dovetail protrusion (71) and the inclined dovetail groove (72) are slidably engaged. The adjusting block (11) is rotatably connected to a screw rod (73), and a threaded block (74) is threadedly connected to the screw rod (73). A vertical rod (75) is fixedly connected to the threaded block (74), and the vertical rod (75) slides vertically in the lower wedge block (12).

9. A copper-aluminum strip trimming machine according to claim 1, characterized in that: The lower wedge block (12) is provided with a screw three (81), and the bottom of the housing (13) is fixedly connected with a threaded block three (82), which is threadedly connected to the screw three (81).

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