A cold rolling device for copper rods

Abstract

The present application relates to a kind of cold rolling device for copper rod, it is related to copper rod cold rolling field.To overcome the shortcomings of lack of real-time perception and automatic adjustment mechanism to the center line offset induced bending in prior art.A kind of cold rolling device for copper rod, including frame, frame is equipped with connecting frame, connecting frame is equipped with first motor, connecting frame is rotatably connected with screw rod, and one end of screw rod is fixedly connected with first motor, connecting frame is provided with bearing block, and the bearing block in the middle part of connecting frame is fixedly connected with connecting frame, and the bearing block is rotatably connected with the first rotating frame between lifting frame and first rotating frame, and the rolling roller is fixedly connected with gear on both sides of rolling roller.The present application drives screw rod to rotate, drives bearing block to move, then promotes first rotating frame and its connecting component displacement, dynamically adjusts the position relationship of rolling roller, relieves local extrusion, effectively prevents copper rod from permanent deformation or fracture due to continuous stress, and improves the stability of rolling process and product yield.

Description

Technical Field

[0001] This invention relates to the field of cold rolling of copper rods, and more particularly to a cold rolling apparatus for copper rods. Background Technology

[0002] Cold rolling is a plastic forming process performed below the recrystallization temperature of a metal, widely used in the precision forming of copper and copper alloys. In the field of copper rod processing, cold rolling typically achieves cross-sectional diameter reduction and microstructure densification through multiple continuous rolling passes at room temperature. This not only yields high dimensional accuracy and excellent surface quality but also significantly improves the material's strength and electrical conductivity through work hardening. In actual production, cold rolling equipment usually consists of multiple rolling units arranged sequentially along the rolling direction. The rolling centerlines of each unit must be strictly collinear to ensure stable transmission of the copper rod along a predetermined trajectory during continuous deformation.

[0003] However, factors such as equipment installation alignment errors, uneven foundation settlement, roll bearing housing assembly deviations, inaccurate positioning after roll changes, and thermal deformation can easily lead to axial or angular misalignment between adjacent rolling units, disrupting the continuity of the rolling centerline. This centerline misalignment causes the direction of movement of the copper rod output from the preceding rolling unit to be inconsistent with the inlet guide axis of the subsequent unit. During the biting process, the edge of the copper rod is subjected to asymmetrical lateral constraint forces, resulting in localized plastic bending or serpentine oscillation. This not only affects the straightness and dimensional consistency of the product but may also cause process failures such as rolling vibration and accelerated die wear. Existing technologies lack real-time sensing and automatic adjustment mechanisms for bending caused by centerline misalignment, relying mainly on manual inspection, which results in a delayed response and is difficult to meet the quality control requirements of high-efficiency, high-precision cold rolling production. Summary of the Invention

[0004] In order to overcome the shortcomings of existing technologies, such as the lack of real-time sensing and automatic adjustment mechanism for bending caused by centerline deviation, which mainly relies on manual inspection and has a slow response, the technical problem is to provide a cold rolling device for copper rods.

[0005] The technical solution is as follows: A cold rolling device for copper rods includes a frame, a connecting frame mounted on the frame, a first motor mounted on the connecting frame, a screw rotatably connected to the connecting frame, one end of the screw fixedly connected to the first motor, a bearing block provided on the connecting frame, a bearing block in the middle of the connecting frame fixedly connected to the connecting frame, bearing blocks on both sides of the connecting frame threadedly connected to the screw, a contact switch fixedly installed on one side of the bearing blocks on both sides of the connecting frame, the contact switch being electrically connected to the first motor through a control module, a first rotating frame provided on the top of the bearing blocks on both sides of the connecting frame, a first torsion spring sleeved between the first rotating frame and the bearing blocks, a telescopic rod symmetrically arranged along the first rotating frame fixedly connected to the first rotating frame, a lifting frame fixedly connected to the side of the telescopic rod away from the first rotating frame, rolling rolls rotatably connected between the lifting frame and the first rotating frame, and gears fixedly connected to both sides of the rolling rolls.

[0006] Optionally, it also includes a second motor, which is fixedly installed on one side of the first rotating frame. The second motor is fixedly connected to the rolling roll. A sliding frame is slidably connected to the connecting frame. The sliding frame is in contact with a contact switch to control the start of the contact switch. A spring is fixedly connected between the sliding frame and the connecting frame.

[0007] Optionally, the bottom of the first rotating frame has protrusions extending to both sides for pushing the sliding frame to move.

[0008] Optionally, it also includes a fixing frame, which is fixedly connected to one side of the bearing block. The first rotating frame is fixedly connected to one side of the fixing block, and the fixing block is connected to a second rotating frame. The second rotating frame is symmetrically provided with a limit frame along the axial extension direction. A torsion spring is sleeved between the second rotating frame and the fixing block, and a second torsion spring is sleeved between the second rotating frame and the limit frame.

[0009] Optionally, it also includes a support frame, which is fixedly mounted on one side of the connecting frame.

[0010] Optionally, the side wall of the support frame is provided with a through square opening to support the weight of the copper rod and prevent it from bending downwards due to gravity.

[0011] The beneficial effects of this invention are: by driving the screw to rotate, the bearing block moves, thereby pushing the first rotating frame and its connecting parts to move, dynamically adjusting the positional relationship of the rolling rolls, alleviating local extrusion, effectively preventing the copper rod from undergoing permanent deformation or breakage due to continuous stress, and improving the stability of the rolling process and the product yield.

[0012] By setting up a mechanical linkage mechanism consisting of a bearing block, a first rotating frame, a limit frame, and a lifting frame, a progressive protection mechanism of "primary adjustment - secondary trigger - emergency release" is formed. This mechanism can not only automatically adjust the rolling state in the early stage of centerline deviation, but also activate an emergency response when the operator does not intervene in time, effectively preventing the copper rod from bending or breaking due to continuous stress.

[0013] By placing a support frame between rolling units to bear the weight of the copper rod, bending of the copper rod is prevented, effectively suppressing sagging deformation caused by the weight of the copper rod, reducing bending stress, and maintaining straightness during the rolling process. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural cross-sectional view of the present invention.

[0016] Figure 3 This is a three-dimensional structural diagram of the connecting frame, the first motor, and the screw of the present invention.

[0017] Figure 4 This is a three-dimensional structural diagram of the lifting frame, telescopic rod, and second motor of the present invention.

[0018] Figure 5 This is a three-dimensional structural diagram of the first rotating frame of the present invention.

[0019] Figure 6 This is a three-dimensional structural diagram of the components of the present invention, including the fixing block, the second rotating frame, and the limiting frame.

[0020] Figure 7 This is a three-dimensional structural diagram of the second rotating frame and the limiting frame of the present invention.

[0021] Figure 8 This is a three-dimensional structural diagram of the connecting frame and the support frame of the present invention.

[0022] The markings in the attached diagram are as follows: 101_frame, 102_connecting frame, 103_first motor, 104_screw, 105_sliding frame, 1051_spring, 106_bearing block, 107_contact switch, 108_first rotating frame, 109_first torsion spring, 110_lifting frame, 111_telescopic rod, 112_second motor, 113_rolling roll, 114_gear, 201_fixed frame, 202_fixed block, 203_second rotating frame, 204_limiting frame, 205_second torsion spring, 301_bearing frame. Detailed Implementation

[0023] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0024] Example 1: A cold rolling apparatus for copper rods, such as Figures 1-5As shown, the system includes a frame 101, a connecting frame 102 mounted on top of the frame 101, a first motor 103 mounted on the upper part of the connecting frame 102, a screw 104 rotatably connected to the upper part of the connecting frame 102, one end of the screw 104 being fixedly connected to the first motor 103, and three sets of bearing blocks 106 provided on the upper side of the connecting block 102. The bearing blocks 106 located on the left and right sides of the top of the connecting frame 102 are slidably connected to the connecting frame 102, the bearing block 106 in the middle of the top of the connecting frame 102 is fixedly connected to the connecting frame 102, and the bearing blocks 106 located on both sides of the top of the connecting frame 102 are threadedly connected to the screw 104. A contact switch 107 is fixedly mounted on one side of the bearing blocks 106 on both sides of the connecting frame 102. The contact switch 107 is electrically connected to the first motor 103 through a control module. A first rotating frame 108 is provided on the top of the bearing blocks 106 on both sides of the connecting frame 102. The bearing blocks 106 and the first rotating frame 108 are horizontally distributed from left to right. The bottom of the first rotating frame 108 has protrusions extending to both sides for pushing the sliding frame 105 to move. A first torsion spring 109 is sleeved between the first rotating frame 108 and the bearing blocks 106. Telescopic rods 111 are fixedly connected to the front and rear sides of the first rotating frame 108 and are symmetrically arranged along the first rotating frame 108. A lifting frame 110 is fixedly connected to one side of the top of the symmetrically arranged telescopic rods 111. A rolling roller 113 is rotatably connected between the lifting frame 110 and the first rotating frame 108. Gears 114 are fixedly connected to both sides of the rolling roller 113. The rolling roller 113 generates an interactive rolling force through the meshing between the gears 114 on both sides to roll the copper rod.

[0025] like Figure 4 As shown, it also includes a second motor 112, which is fixedly installed on one side of the first rotating frame 108. The second motor 112 is fixedly connected to the front side of the rolling roll 113. A sliding frame 105 is slidably connected to the upper part of the connecting frame 102. The sliding frame 105 is in contact with the contact switch 107 to control the start of the contact switch 107. A spring 1051 is fixedly connected between the sliding frame 105 and the connecting frame 102.

[0026] First, the second motor 112 is started, which drives the lower rolling roll 113 to rotate. Then, through the gear 114, the upper rolling roll 113 is driven to rotate, and the copper rod is placed between the rolling rolls 113. A normal pressure (perpendicular to the contact surface) is applied to the copper rod by the rolling rolls 113. The friction force generated in the contact area rolls the copper rod and drives it to move to the right. Then, the copper rod is driven by the rolling rolls 113 to enter the rolling rolls 113 located in the middle and on the right side of the connecting frame 102 in sequence. Finally, the shaping rolling is completed by the rolling roll 113 on the right side. During the rolling process, the rolling center lines of all rolling units should be on the same straight line to ensure that the copper rod is stably transmitted along the predetermined trajectory and completes plastic deformation.

[0027] If, during the copper rod rolling process, the rolling center lines between adjacent rolling units are not aligned, the direction of movement of the copper rod output from the previous rolling unit deviates from the inlet guide direction of the subsequent rolling unit. This deviation causes the copper rod to fail to enter the roll pass symmetrically when entering the subsequent rolling unit, instead experiencing asymmetrical lateral constraint forces at the edge of the roll pass. The lateral force forces the copper rod to undergo localized plastic or elastic bending to adapt to the entry position of the next rolling unit. The copper rod begins to bend under stress, thereby causing the first rotating frame 108 located on the left or right side of the connecting frame 102 and the corresponding components mounted on the first rotating frame 108 to begin rotating. The first torsion spring 109 deforms and stores force, and then the bottom of the first rotating frame 108 pushes the sliding frame 105 to move away from the middle position of the connecting frame 102, disengaging from the contact switch 107. The spring 1051 is stretched, and then the contact switch 107 sends an electrical signal. After receiving the electrical signal, the control module starts the first motor 103. The first motor 103 drives the screw 104 to rotate, thereby driving the bearing... The carrier block 106 moves towards the sliding frame 105, thereby driving the first rotating frame 108 and its corresponding components to move. This prevents the copper rod from being excessively squeezed and bent, releases the stress on the copper rod, and allows the operator to make corresponding adjustments based on the above situation to correct the above problems until the contact switch 107 re-engages with the sliding frame 105. In summary, by driving the screw 104 to rotate, the carrier block 106 moves, thereby pushing the first rotating frame 108 and its connecting components to move, dynamically adjusting the positional relationship of the rolling rolls 113, alleviating local squeezing, effectively preventing the copper rod from undergoing permanent deformation or breakage due to continuous stress, and improving the stability of the rolling process and the product yield.

[0028] Example 2: Based on Example 1, such as Figure 1 , Figure 6 and Figure 7 As shown, it also includes a fixing frame 201, which is fixedly connected to the outside of the bearing block 106. The first rotating frame 108 is fixedly connected to a fixing block 202 on the side adjacent to the fixing frame. A second rotating frame 203 is connected to the middle of the fixing block 202. The second rotating frame 203 is symmetrically provided with limit frames 204 along the left and right axis extension directions. A torsion spring is sleeved between the second rotating frame 203 and the fixing block 202. A second torsion spring 205 is sleeved between the second rotating frame 203 and the limit frame 204.

[0029] To prevent excessive bending or even breakage of the copper rod due to operator failure to adjust the equipment in time when it bends, this device is equipped with a two-stage protection mechanism. The specific working process is as follows: When the bearing block 106 moves to its limit position away from the center of the connecting frame 102, if the operator still does not stop the machine and make adjustments in time, the bearing block 106 has no further room to move and cannot continue to release the stress generated by the bending of the copper rod. As the rolling process continues, the copper rod is subjected to increased force and bends further, causing the first rotating frame 108 to rotate. The first rotating frame 108 then drives the fixed block 202, the second rotating frame 203, the limiting frame 204, and the second torsion spring 205 to rotate synchronously. During the rotation, the second rotating frame 203 contacts the side of the fixed frame 201 and is deflected by force, thereby causing the limiting frame 204 to rotate counterclockwise, releasing the locking state of the lifting frame 110. At this time, the telescopic rod 111 (such as spring 1051 or gas spring 1051) quickly pushes the lifting frame 110 upward under the action of elastic restoring force, disengaging from the rolling position, terminating the rolling pressure on the copper rod, and realizing emergency protection. In summary, by setting up a mechanical linkage mechanism consisting of bearing block 106, first rotating frame 108, limit frame 204 and lifting frame 110, a progressive protection mechanism of "primary adjustment - secondary trigger - emergency release" is formed. It can not only automatically adjust the rolling state in the early stage of centerline deviation, but also activate the emergency response when the operator does not intervene in time, effectively preventing the copper rod from being excessively bent or broken due to continuous force.

[0030] Example 3: Based on Example 2, such as Figure 1 , Figure 8 As shown, it also includes a support frame 301, which is fixedly installed on one side of the top of the connecting frame 102. The side wall of the support frame 301 is provided with a through square opening to support the weight of the copper rod and prevent it from bending downwards due to gravity.

[0031] To prevent the copper rods between rolling units from sagging and bending due to gravity, the following measures are taken: By placing a bearing frame 301 between rolling units to support the weight of the copper rods, bending is prevented, effectively suppressing sagging deformation caused by the weight of the copper rods, reducing bending stress, and maintaining straightness during the rolling process.

[0032] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the invention without departing from the principles and spirit of the invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for illustrative purposes only and is not intended to limit the invention; rather, the scope of protection is defined by the content of the claims.

Claims

1. A cold rolling device for copper rods, characterized in that, The utility model provides a copper rod rolling machine, including organic frame (101), frame (101) is installed with connecting frame (102), connecting frame (102) is installed with first motor (103), connecting frame (102) rotationally connects with screw rod (104), and one end of screw rod (104) is fixedly connected with first motor (103), and connecting frame (102) is provided with bearing block (106), and the bearing block (106) of connecting frame (102) middle part is fixedly connected with connecting frame (102), and the bearing block (106) on both sides of connecting frame (102) is screwly connected with screw rod (104), and the bearing block (106) on both sides of connecting frame (102) one side is fixedly installed with contact switch (107), and contact switch (107) is electrically connected with first motor (103) through control module, and the top of bearing block (106) on both sides of connecting frame (102) is provided with first rotary frame (108), and first torsional spring (109) is sleeved between first rotary frame (108) and bearing block (106), and first rotary frame (108) is fixedly connected with telescopic link (111) along the symmetry of first rotary frame (108), and telescopic link (111) is fixedly connected with lifting frame (110) on the side away from first rotary frame (108), and lifting frame (110) and first rotary frame (108) are rotatably connected with rolling roller (113) between, and the both sides of rolling roller (113) are fixedly connected with gear (114); Also including second motor (112), second motor (112) is fixedly installed on the side of first rotary frame (108), and second motor (112) is fixedly connected with rolling roller (113), and connecting frame (102) is slidably connected with sliding frame (105), and sliding frame (105) is in contact with contact switch (107) and is matched with contact switch (107) for controlling contact switch (107) to start, and spring (1051) is fixedly connected between sliding frame (105) and connecting frame (102); First rotary frame (108) bottom extends to both sides and has protruding part for moving sliding frame (105).

2. A device for cold rolling of copper bars according to claim 1, characterized in that, Also including fixed frame (201), fixed frame (201) is fixedly connected on the side of bearing block (106), and first rotary frame (108) one side is fixedly connected with fixed block (202), and fixed block (202) is rotatably connected with second rotary frame (203), and second rotary frame (203) is symmetrically provided with limit frame (204) along the extension direction of axis, and torsional spring is sleeved between second rotary frame (203) and fixed block (202), and second torsional spring (205) is sleeved between second rotary frame (203) and limit frame (204).

3. A device for cold rolling of copper bars according to claim 2, characterized in that, Also including bearing frame (301), bearing frame (301) is fixedly arranged on the side of connecting frame (102).

4. A device for cold rolling of copper bars according to claim 3, characterized in that, The side wall of bearing frame (301) is provided with through square mouth for bearing the weight of copper rod and preventing it from bending downward under gravity.

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