CN218191723U

CN218191723U - Cold rolling equipment with copper bar as head

Info

Publication number: CN218191723U
Application number: CN202222360105.0U
Authority: CN
Inventors: 尹一帆; 刘苇; 洪成龙; 廖罗火生; 叶雪琪; 刘新伟; 金国海; 洪东伟
Original assignee: Zhejiang Tianning Alloy Material Co ltd
Current assignee: Zhejiang Tianning Alloy Material Co ltd
Priority date: 2022-09-05
Filing date: 2022-09-05
Publication date: 2023-01-03
Anticipated expiration: 2032-09-05

Abstract

The utility model relates to a cold rolling device for making a head of a copper bar, which comprises a rolling mechanism for cold rolling the head end part of the copper bar and a driving mechanism for transmitting power to the rolling mechanism; the rolling mechanism comprises a group of opposite racks, a group of parallel and opposite and coaxial bearing seats are respectively arranged in the middle of each of the two racks, a first roller and a second roller which are coaxially arranged with the bearing seats are respectively arranged in the vertical direction of the racks, adjusting units for adjusting the first roller to be parallel are respectively arranged above the bearing seats arranged at the two ends of the first roller, the buffer units are respectively arranged close to the adjusting units along the width direction of the racks, and connecting shafts which penetrate through the two racks and are locked and fixed through nuts are further arranged on the periphery of the racks. The utility model discloses a cold rolling mode improves the homogeneity that the copper bar was done the head, is difficult for the phenomenon of splitting to take place when helping drawing in next station.

Description

Cold rolling equipment with copper bar as head

Technical Field

The utility model relates to a copper bar production facility technical field especially relates to a cold rolling equipment that copper bar was done first.

Background

At present, in the process of obtaining an extrusion piece with a required shape, size and certain mechanical property, cold extrusion processing is generally adopted, the cold extrusion is an important component in a precise plastic volume forming technology, one end of a copper bar passes through a die cavity of a die in a cold state, and the copper bar is forced to be extruded out of the die cavity under the action of strong pressure and the speed of clamping and moving one end of the copper bar by a puller, so that the required specification is obtained;

in the prior art, the copper bar needs to be precisely extruded again to obtain a copper bar with higher precision, and the copper bar cannot pass through a die because a die with higher precision is incompatible with the size of the primarily molded copper bar; consequently need extrude the top of the head portion of copper bar, make the top of the head portion thickness attenuation of copper bar reach the size that can pass the mould, at the extrusion in-process, the manual press that all adopts is suppressed the top of the copper bar to the homogeneity of copper bar top can't be guaranteed, lead to carrying out the accurate extrusion and the copper bar top of drawing under next station and easily break.

Disclosure of Invention

An object of the utility model is to provide a cold rolling equipment that copper bar was done first, the utility model discloses well adoption cold rolling mode improves the homogeneity that the copper bar was done the head, is difficult for the phenomenon of breaking occur when helping drawing in next station.

For solving the technical problem, the technical proposal of the utility model is that: a cold rolling device for making a head of a copper bar comprises a rolling mechanism for cold rolling the head end part of the copper bar and a driving mechanism for transmitting power to the rolling mechanism; the rolling mechanism comprises a set of opposite frames, wherein a set of parallel and opposite coaxial bearing seats are respectively arranged in the middle of each frame, a first roller and a second roller which are coaxially arranged with the bearing seats are respectively arranged in the vertical direction of each frame, adjusting units used for adjusting the parallelism of the first rollers are respectively arranged above the bearing seats at the two ends of the first rollers, and buffering units are respectively arranged close to the adjusting units along the width direction of each frame.

Preferably, the adjusting unit comprises a connecting piece, connecting rods are fixedly clamped on two sides of the connecting piece fixedly connected with the bearing seat respectively, the connecting rods penetrate through the two frames and extend towards the direction of the driving mechanism, an adjusting piece in threaded fit with the frames is arranged in the vertical direction, and one end of the adjusting piece extending towards the first roller is connected with the connecting piece in a floating mode.

In the arrangement, an adjusting piece in an adjusting unit is in threaded fit with the rack, one extending end of the adjusting piece is in floating connection with the bearing block, and the two ends of the first roller are respectively provided with the adjusting unit; the adjusting piece is arranged in the device for adjusting the level of the first roller, and the distance between the first roller and the second roller can be adjusted according to the required head making size, so that the head making sizes of different specifications can be made.

Preferably, the roller is axially eccentrically disposed to approach or separate from the second roller when the first roller rotates.

In the arrangement, firstly, the distance between the first roller and the second roller is adjusted through the adjusting unit, and meanwhile, the axial level of the first roller is also adjusted, wherein the first roller is arranged in an eccentric mode in the axial direction, so that the head end part of the copper bar moves along the rotating direction of the first roller and the second roller under the condition of double-direction extrusion of the first roller and the second roller, and the head end part with uniformity is also obtained.

Preferably, the buffer unit comprises moving members in sliding fit on the two connecting rods, a support fixedly connected with the rack is arranged above the moving members, screw rods which penetrate through the support and are in threaded fit with the moving members are respectively arranged in the middle of the support, the two elastic members are respectively sleeved on the screw rods in the axial direction towards one end of the adjusting member, and a limiting block for limiting the elastic members to axially stretch is further arranged.

In the above arrangement, the buffer unit plays a role in buffering when the head end parts of the copper bars are extruded every time the roller I and the roller II are used, the overall flexibility is high, the uniformity in extrusion is improved, and compared with the hard extrusion process, the extrusion with the buffer function can reduce the part abrasion and the part chapping phenomenon in the hard extrusion state for a long time, so that the situation that parts are replaced manually frequently is reduced.

Preferably, two sides of the frame in the width direction are respectively provided with a protruding part, a groove is formed in the protruding part, and the groove extends towards the bottom of the frame.

Among the above-mentioned setting, the bellying plays the effect of auxiliary shaft as the benchmark when removing, and the help manual work can be quick adjusts the auxiliary shaft to can stretch into the copper bar smoothly the position between two rollers.

Preferably, the groove is in a T-shaped arrangement.

In the arrangement, the T-shaped groove is used as a guide for adjusting the movement of the auxiliary shaft, and the phenomenon that the auxiliary shaft falls off in the adjusting process is effectively prevented.

Preferably, locking plates are respectively arranged near the protruding portions, bolts extending out of the grooves penetrate through the locking plates to respectively lock auxiliary shafts between the grooves and the locking plates, and the auxiliary shafts are arranged in parallel with the rollers.

Among the above-mentioned setting, the both ends of auxiliary shaft are respectively through locking plate and bolt fastening to can reciprocate along the recess direction, help adjusting auxiliary shaft horizontal direction, reach and stretch into the nose tip of copper bar smoothly between two rollers, wherein the auxiliary shaft also plays the effect of holding the copper bar, alleviates artificial burden.

Preferably, the driving mechanism comprises a universal rod, a reduction gearbox, a gear box, a connecting shaft, a transmission belt and a motor, wherein one end of the universal rod is connected with the reduction gearbox, the other end of the universal rod is connected with the first roller and the second roller, the reduction gearbox is connected with the gear box through the connecting shaft, and a driven wheel at one end of the gear box is connected with the motor through the transmission belt to form transmission.

In the arrangement, the driven wheel is connected with the motor through the transmission belt to generate a reduction ratio, and the torque output by the reduction ratio cannot reach the torque required by extrusion, so that a reduction gearbox capable of changing the reduction ratio is added, and the torque is increased; the reduction gearbox is connected with the rolling mechanism through the universal rod, and during the process, because the first roller and the second roller in the rolling mechanism can float during operation, the universal rod also plays a role in reducing fluctuation while transmitting power, so that stable operation is ensured under the condition that the torque transmitted to the two rollers is not changed.

Preferably, there is a balance weight wheel coaxially arranged with the driven wheel and oppositely arranged on one side of the gear box.

In the above arrangement, the weight wheel contributes to the stability of the driven wheel during rotation.

To sum up, compare with prior art, the utility model discloses following beneficial effect has:

the utility model discloses in, at first the regulating element in the rolling mechanism is adjusted roller one and roller two to the level, then adjust the interval between two rollers and can let the tip of copper bar stretch into, later the rolling mechanism passes through actuating mechanism during conveying power operation, artifical both hands are holding the copper bar and are stretching into two roller intervals with the tip, the copper bar passes through the direction and the jack-up of auxiliary shaft at this in-process, make the manual work need not promote the copper bar just can be along with roller one and the rotatory direction removal of roller two, the buffer unit that the axial eccentric settings of roller one and roller one both ends were equipped with again, so that the tip of copper bar obtains more even tip under the extrusion that roller one and roller two have the buffering, consequently, the tip of copper bar takes place the phenomenon of splitting when drawing in next station.

Drawings

Fig. 1 is a schematic structural diagram of a cold rolling device for making a head of a copper bar, which is related to the utility model;

fig. 2 is a schematic view of a rolling mechanism according to the present invention;

fig. 3 is a partial cross-sectional view of a rolling mechanism in accordance with the present invention;

the reference numbers in the figures are:

1. a rolling mechanism; 11. a frame; 12. an adjustment unit; 121. a connecting member; 122. an adjustment member; 123. a connecting rod; 13. a buffer unit; 131. a moving member; 132. a support; 133. a screw; 134. an elastic member; 135. a limiting block; 14. a first roller; 15. a second roller; 16. a bearing seat; 17. a connecting shaft; 18. a boss portion; 181. a groove; 19. a locking plate; 20. an auxiliary shaft; 2. a drive mechanism; 21. a gimbal lever; 22. a reduction gearbox; 23. a gear housing; 231. a driven wheel; 232. a counterweight wheel; 24. a coupling shaft; 25. a transmission belt; 26. an electric motor.

Detailed Description

For a better understanding of the technical content of the present invention, the following embodiments are provided, and the present invention is further described with reference to the accompanying drawings.

As shown in fig. 1 to 3, a cold rolling device for heading a copper bar comprises a rolling mechanism 1 for cold rolling a head end of the copper bar and a driving mechanism 2 for transmitting power to the rolling mechanism; the rolling mechanism comprises a group of opposite frames 11, a group of parallel and opposite coaxial bearing seats 16 are respectively arranged in the middle of each of the two frames 11, a first roller 14 and a second roller 15 which are coaxially arranged with the bearing seats 16 are respectively arranged in the vertical direction of the frame 11, adjusting units 12 for adjusting the parallelism of the first roller 14 are respectively arranged above the bearing seats 16 arranged at the two ends of the first roller 14, buffer units 13 are respectively arranged close to the adjusting units 12 along the width direction of the frame 11, and connecting shafts 17 which penetrate through the two frames 11 and are locked by nuts are also arranged around the frame 11.

Further, the adjusting unit 12 includes a connecting member 121, two sides of the connecting member 121, which are fixedly connected to the bearing housing 16, are respectively and fixedly clamped with a connecting rod 123, the connecting rod 123 extends through the two frames 11 toward the driving mechanism 2, an adjusting member 122, which is in threaded fit with the frames 11, is arranged in the vertical direction, and one end of the adjusting member 122, which extends toward the first roller 14, is connected to the connecting member 121 in a floating manner. In the embodiment, the adjusting member 122 in the adjusting unit 12 is in threaded fit with the frame 11, one extending end of the adjusting member 122 is in floating connection with the bearing block 16, and the adjusting unit 12 is arranged at each of the two ends of the first roller 14; the adjusting piece 122 arranged in the device adjusts the level of the first roller 14, and can also adjust the distance between the first roller 14 and the second roller 15 according to the required head size, so that the head sizes with different specifications can be manufactured.

Further, the first roller 14 is axially eccentrically disposed to be closer to or farther from the second roller 15 when the first roller 14 rotates. In the embodiment, firstly, the distance between the first roller 14 and the second roller 15 is adjusted through the adjusting unit 12, and meanwhile, the axial level of the first roller 14 is also adjusted, wherein the first roller 14 is axially and eccentrically arranged, so that the head end part of the copper bar moves along the rotating direction of the two rollers under the bidirectional extrusion of the first roller 14 and the second roller 15, and the head end part with uniformity is obtained at the same time.

Further, the buffer unit 13 includes a moving member 131 slidably engaged with the two connecting rods 123, a bracket 132 fixedly connected with the frame 11 is disposed above the moving member 131, screw rods 133 penetrating through the bracket 132 and engaged with the moving member 131 by threads are respectively disposed in the middle of the bracket 132, one ends of the two screw rods 133 extending toward the adjusting member 122 are respectively sleeved with an elastic member 134 in the axial direction, and a limiting block 135 is further disposed to limit the elastic member 134 from axially extending and retracting. The buffering unit 13 arranged in the embodiment plays a role in buffering when the first roller 14 and the second roller 15 squeeze the head end part of the copper bar, is flexible overall, improves the uniformity during squeezing, and can reduce part abrasion and part chapping phenomenon in a hard squeezing state for a long time compared with a hard squeezing process, so that the situation that parts are replaced frequently by workers is reduced.

Furthermore, two sides of the frame 11 in the width direction are respectively provided with a protruding part 18, a groove 181 is formed in the protruding part 18, and the groove 181 extends towards the bottom of the frame 11. The boss 18 plays the effect of auxiliary shaft 20 as the benchmark when removing in this embodiment, and the help manual work can be quick adjust auxiliary shaft 20 to can stretch into the copper bar smoothly the position between two rollers.

Further, the groove 181 is provided in a T shape. The T-shaped groove 181 provided in this embodiment serves as a guide for adjusting the movement of the auxiliary shaft 20, and also effectively prevents the auxiliary shaft 20 from falling off during the adjustment process.

Furthermore, locking plates 19 are respectively arranged near the convex parts 18, bolts extending out of the grooves 181 penetrate through the locking plates 19 to respectively lock the auxiliary shafts 20 between the grooves 181 and the locking plates 19, and the auxiliary shafts 20 are arranged in parallel with the first rollers 14. The both ends of auxiliary shaft 20 are respectively through locking plate 19 and bolt fastening in this embodiment to can reciprocate along recess 181 direction, help adjusting the 20 horizontal direction of auxiliary shaft, reach and stretch into the top end portion of copper bar smoothly between two rollers, wherein auxiliary shaft 20 also plays the effect of holding the copper bar, alleviates artificial burden.

Further, the driving mechanism 2 comprises a universal rod 21, a reduction gearbox 22, a gear box 23, a coupling shaft 24, a transmission belt 25 and a motor 26, wherein one end of the universal rod 21 is connected with the reduction gearbox 22, the opposite end of the universal rod 21 is connected with the first roller 14 and the second roller 15, the reduction gearbox 22 is connected with the gear box 23 through the coupling shaft 24, and a driven wheel 231 located at one end of the gear box 23 is connected with the motor 26 through the transmission belt 25 to form transmission. In the embodiment, the driven wheel 231 and the motor 26 are connected through the transmission belt 25 to generate a reduction ratio, and the torque output by the reduction ratio cannot reach the torque required by extrusion, so that the reduction gear box 22 capable of changing the reduction ratio is added, and the torque is increased; the reduction box 22 is connected with the rolling mechanism 1 through the universal rod 21, and during the process, because the first roller 14 and the second roller 15 in the rolling mechanism 1 can float during operation, the universal rod 21 also plays a role in reducing fluctuation while transmitting power, and ensures that the operation is stable under the condition that the torque transmitted to the two rollers is not changed.

Further, a weight wheel 232 is provided on the gear housing 23 side coaxially with and opposite to the driven wheel 231. The weight wheel 232 in this embodiment helps the driven wheel 231 to rotate more smoothly.

During production, firstly, the first roller 14 and the second roller 15 are adjusted to be horizontal by the adjusting unit 12 in the rolling mechanism 1, then the distance between the two rollers is adjusted to enable the head end part of the copper bar to extend into the roller, then the rolling mechanism 1 transmits power through the driving mechanism 2 for operation, the copper bar is held by hands of a person to enable the head end part to extend into the distance between the two rollers, in the process, the copper bar is guided and supported through the auxiliary shaft 20, the person can move along with the extrusion in the rotating direction of the first roller 14 and the second roller 15 without pushing the copper bar, then the axial eccentric arrangement of the first roller 14 and the buffer units 13 arranged at the two ends of the first roller 14 are added, so that the head end part of the copper bar is subjected to buffer extrusion to obtain more uniform head end parts, and the phenomenon that the head end part of the copper bar is broken when the first roller 14 and the second roller 15 are subjected to buffer extrusion is avoided in the next station.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a cold rolling equipment of head is made to copper bar which characterized in that: the device comprises a rolling mechanism (1) for cold rolling the head end part of the copper bar and a driving mechanism (2) for transmitting power to the rolling mechanism;

the rolling mechanism comprises a group of opposite frames (11), wherein a group of parallel and opposite coaxial bearing seats (16) are respectively arranged in the middle of each frame (11), a first roller (14) and a second roller (15) which are coaxially arranged with the bearing seats (16) are respectively arranged in the vertical direction of each frame (11), adjusting units (12) used for adjusting the first roller (14) to be parallel are respectively arranged above the bearing seats (16) at the two ends of the first roller (14), and buffer units (13) are respectively close to the adjusting units (12) to be arranged along the width direction of each frame (11) and are also provided with connecting shafts (17) which penetrate through the two frames (11) and are locked through nuts around the frames (11).

2. The cold rolling equipment for heading copper bars as claimed in claim 1, wherein the cold rolling equipment comprises: the adjusting unit (12) comprises a connecting piece (121), connecting rods (123) are fixedly clamped on two sides of the connecting piece (121) fixedly connected with the bearing seat (16), the connecting rods (123) penetrate through the two racks (11) and extend towards the direction of the driving mechanism (2), an adjusting piece (122) in threaded fit with the racks (11) is arranged in the vertical direction, and one end, extending towards the first roller (14), of the adjusting piece (122) is connected with the connecting piece (121) in a floating mode.

3. The cold rolling equipment for heading copper bars as claimed in claim 2, wherein the cold rolling equipment comprises: the first roller (14) is axially eccentrically arranged and moves towards or away from the second roller (15) when the first roller (14) rotates.

4. The cold rolling equipment for heading copper bars as claimed in claim 1, wherein the cold rolling equipment comprises: buffer unit (13) are including sliding fit's moving member (131) on two connecting rods (123), are close to moving member (131) top is equipped with support (132) that link firmly with frame (11) the middle part of support (132) is equipped with respectively and passes support (132) and with moving member (131) screw-thread fit's screw rod (133), two screw rod (133) are equipped with elastic component (134) towards the one end that adjusting part (122) extended respectively cover in the axial, wherein, still are equipped with the restriction elastic component (134) the flexible stopper (135) of axial.

5. The cold rolling equipment for heading copper bars as claimed in claim 1, wherein the cold rolling equipment comprises: the improved structure of the automobile seat is characterized in that protruding portions (18) are arranged on two sides of the width direction of the rack (11), grooves (181) are formed in the protruding portions (18), and the grooves (181) extend towards the bottom of the rack (11).

6. The cold rolling equipment for heading copper bars as claimed in claim 5, wherein the cold rolling equipment comprises: the groove (181) is arranged in a T shape.

7. The cold rolling equipment for heading copper bars as claimed in claim 5, wherein the cold rolling equipment comprises: locking plates (19) are respectively arranged close to the protruding portions (18), bolts extending out of the grooves (181) penetrate through the locking plates (19) to respectively lock auxiliary shafts (20) between the grooves (181) and the locking plates (19), and the auxiliary shafts (20) are arranged in parallel with the rollers I (14).

8. The cold rolling equipment for heading copper bars as claimed in claim 1, wherein the cold rolling equipment comprises: the driving mechanism (2) comprises a universal rod (21), a reduction gearbox (22), a gear case (23), a coupling shaft (24), a transmission belt (25) and a motor (26), wherein the universal rod (21) is provided with two ends which are respectively connected with the reduction gearbox (22), the opposite end of the universal rod (21) is respectively connected with a roller I (14) and a roller II (15), the reduction gearbox (22) and the gear case (23) are connected through the coupling shaft (24), and a driven wheel (231) which is positioned at one end of the gear case (23) is connected with the motor (26) through the transmission belt (25) to form transmission.

9. The cold rolling equipment for heading copper bars as claimed in claim 8, wherein the cold rolling equipment comprises: and a counterweight wheel (232) which is coaxial with the driven wheel (231) and is oppositely arranged on one side of the gear case (23).