A feed system for a cold rolling mill

Abstract

The application discloses a cold rolling mill feeding system, which comprises a feeding device and a guide device. The feeding device comprises a first base, a guide groove, a pushing pipe and a first driving device. The guide device comprises a second base, a first clamp, a second clamp, a guide rod and a second driving device. The first clamp or / and the second clamp and the guide rod are in abutment. The first clamp comprises a first fixed seat, a first through hole, a first sliding groove and a first clamping block. The groove bottom of the first sliding groove is provided with a first air groove. The groove bottom of the first air groove is connected with the first clamping block through a second spring. The cold rolling mill feeding system further comprises a pressure regulating device. The second clamp comprises a second fixed seat, a second through hole, a second sliding groove and a second clamping block. The groove bottom of the second sliding groove is provided with a second air groove. The groove bottom of the second air groove is connected with the second clamping block through a third spring. The application can prevent the guide rod from falling off when neither the first clamp nor the second clamp clamps the guide rod.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of copper pipe cold rolling, in particular to a cold rolling machine feeding system. BACKGROUND

[0002] When the copper pipe is cold rolled, the pushing device puts the copper pipe on the feeding system, and the feeding system guides the copper pipe into the cold rolling machine for cold rolling. The existing feeding system generally includes a feeding device and a guide device. The pushing device first puts the copper pipe on the feeding device, and the feeding device pushes the copper pipe into the guide device. The guide device sends the copper pipe into the cold rolling machine for cold rolling. The cold rolling machine drives the copper pipe to advance while cold rolling the copper pipe. Finally, the copper pipe leaves the guide device, and the action is repeated to cold roll another copper pipe. The existing guide device includes a guide rod for guiding the copper pipe, and two clamps at both ends of the guide rod. The clamps clamp the guide rod to fix the guide rod. During the cold rolling process, the copper pipe slides into the guide rod from the left end of the guide rod and slides out of the right end of the guide rod into the cold rolling machine. When the copper pipe slides into the guide rod from the left end of the guide rod, the left clamp releases the guide rod to prevent interference between the clamp and the copper pipe. The right clamp clamps the guide rod. Conversely, when the copper pipe leaves the guide rod from the right end, the right clamp releases and the left clamp clamps the guide rod. The clamps at both ends of the existing feeding system are controlled by two independent power systems. On the one hand, this increases the difficulty of power system control. On the other hand, when the two power systems are delayed, both clamps will release the guide rod, causing the guide rod to fall off, which will cause the cold rolling to be interrupted. SUMMARY

[0003] The present application proposes a cold rolling machine feeding system to solve the problem of the existing feeding device using two independent power systems to control the two clamps, which can easily cause the guide rod to fall off. The first clamp and the second clamp are driven by one power source, which can prevent the first clamp and the second clamp from not clamping the guide rod and causing the guide rod to fall off.

[0004] To achieve the above purpose, the present application adopts the following technical scheme:

[0005] The application discloses a feeding system of a cold rolling mill, which comprises a feeding device and a guide device, the feeding device comprises a first base, a guide groove arranged on the upper side of the first base, a pushing pipe for pushing the copper pipe to move towards the guide device and slidably connected to the guide groove, and a first driving device for driving the pushing pipe to move along the guide groove, the guide device comprises a second base, a first clamp arranged at one end of the second base close to the feeding device, a second clamp arranged at the other end of the second base, a guide rod arranged above the second base for the copper pipe to slide, and a second driving device for driving the copper pipe to move along the guide rod, the guide rod is coaxial with the pushing pipe, and the first clamp or / and the second clamp abuts against the guide rod; the first clamp comprises a first fixed seat fixedly connected to the second base, a first through hole arranged on the first fixed seat, first sliding grooves arranged on the upper and lower sides of the first through hole, and first clamping blocks slidably connected to the first sliding grooves, the guide rod passes through the first through hole, and the first clamping blocks are located on the upper and lower sides of the guide rod, the groove bottom of the first sliding groove is provided with a first air groove, the groove bottom of the first air groove is connected with the first clamping blocks through a second spring, and the feeding system of the cold rolling mill further comprises a pressure regulating device, which is connected with the first air groove and used for regulating the air pressure of the first air groove; the second clamp comprises a second fixed seat fixedly connected to the second base, a second through hole arranged on the second fixed seat, second sliding grooves arranged on the upper and lower sides of the second through hole, and second clamping blocks slidably connected to the second sliding grooves, the guide rod passes through the second through hole, and the second clamping blocks are located on the upper and lower sides of the guide rod, the groove bottom of the second sliding groove is provided with a second air groove, the groove bottom of the second air groove is connected with the second clamping blocks through a third spring, and the pressure regulating device is connected with the second air groove and used for regulating the air pressure of the second air groove.

[0006] Further, the pressure regulating device comprises a cavity extending horizontally and arranged in the second base, a first piston and a second piston are slidably connected in the cavity, one end of the cavity close to the first piston is communicated with the first air groove through a first air channel, the other end of the cavity is communicated with the second air groove through a second air channel, a third driving device is arranged between the first piston and the second piston, the second piston abuts against the other end of the cavity close to the second air channel, the third driving device comprises a third driving motor arranged in the middle of the cavity, a rotating shaft connected with the third driving motor, and two driving rods connected with the rotating shaft, one end of one of the driving rods away from the second piston is fixedly connected with one end of the rotating shaft away from the third driving motor, one end of the other driving rod away from the second piston is penetrated by the rotating shaft and rotatably connected with the rotating shaft, a fourth spring is arranged on the rotating shaft, the two driving rods are connected through the fourth spring, one end of the driving rod fixedly connected with the rotating shaft is upwardly inclined and rotatably connected with a roller, one end of the driving rod rotatably connected with the rotating shaft is downwardly inclined and rotatably connected with a roller, the rollers abut against the second piston, and the driving rod comprises a sleeve and a telescopic rod slidably connected in the sleeve, the roller is rotatably connected to one end of the telescopic rod away from the sleeve, a fifth spring is arranged in the sleeve, one end of the fifth spring is connected with the sleeve, and the other end of the fifth spring is connected with the telescopic rod.

[0007] Further, the end of the guide rod close to the pushing pipe is provided with a taper surface for facilitating the insertion of the guide rod into the pushing pipe and the copper pipe.

[0008] Further, the upper side of the first base is provided with a moving groove, which is arranged below the guide groove and communicates with the guide groove, the first driving device comprises first sprockets rotatably connected to the two ends of the moving groove, a first driving motor for driving the rotation of the first sprockets, the first sprockets are connected by a first chain, the lower side of the end of the pushing pipe away from the material guiding device is fixedly connected with a connecting plate, the connecting plate is connected with the first chain.

[0009] Further, the upper side of the second base is provided with a guide rail, one end of the guide rail is fixedly connected with the first clamp, the other end of the guide rail is fixedly connected with the second clamp, the second driving device comprises a trolley arranged between the guide rail and the guide rod, and a wheel rotatably connected with the trolley, the end of the second base close to the first clamp is rotatably connected with a second sprocket, the end of the second base close to the second clamp is rotatably connected with a third sprocket, the second sprocket and the third sprocket are connected by a second chain, the second driving device further comprises a second driving motor for driving the rotation of the second sprocket, a supporting mechanism arranged on the upper side of the trolley for pushing the copper pipe towards the second clamp, and the second chain is connected with the trolley.

[0010] Further, the supporting mechanism comprises two pushing blocks, the guide rod is arranged between the pushing blocks, the end of the pushing block away from the other pushing block is rotatably connected with the trolley, the extension direction of the pushing block is perpendicular to the extension direction of the guide rod, and the pushing block and the trolley are connected by a first spring. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a top view of the embodiment.

[0012] Figure 2 It is a top view of the material guiding device.

[0013] Figure 3 It is a A-A sectional view of the embodiment. Figure 1

[0014] Figure 4 It is a sectional view of the material guiding device.

[0015] Figure 5 It is a B-B partial sectional view of the embodiment. Figure 4

[0016] Figure 6 It is a sectional view of the driving rod and the roller.

[0017] Figure 7 It is a schematic view of the pushing pipe pushing the copper pipe to the right on the guide rod.

[0018] Figure 8 ​​Schematic view of the pusher tube moving back to the first base.

[0019] Figure 9 Schematic view of the first rod rotating counterclockwise and driving the first piston to move left.

[0020] Figure 10 Schematic view of the Figure 9 Enlarged view of D.

[0021] Figure 11 Schematic view of the second rod rotating counterclockwise under the action of the fourth spring to the first piston.

[0022] Figure 12 Schematic view of the push block driving the copper pipe to the right. DETAILED DESCRIPTION

[0023] The technical solutions of the present application will be further specifically described below by examples in combination with the drawings.

[0024] Referring to Figures 1 to 12 A feeding system of a cold rolling mill, comprising a feeding device 11 and a guide device 12, the feeding device 11 comprising a first base 111, a guide groove 112 arranged on the upper side of the first base 111, a pusher tube 113 slidingly connected to the guide groove 112 and used for pushing a copper pipe 21 to move to the guide device 12, a first driving device 114 used for driving the pusher tube 113 to move along the guide groove 112, the guide device 12 comprising a second base 121, a first clamp 122 arranged on one end of the second base 121 close to the feeding device 11, a second clamp 123 arranged on the other end of the second base 121, a guide rod 124 arranged above the second base 121 and used for the copper pipe 21 to slide, and a second driving device 125 used for driving the copper pipe 21 to move along the guide rod 124, the guide rod 124 and the pusher tube 113 being coaxial, the first clamp 122 or / and the second clamp 123 and the guide rod 124 abutting, the first clamp 122 being provided with a first photoelectric sensor 13 on the side away from the second clamp 123, and the second clamp 123 being provided with a second photoelectric sensor 14 on the side away from the first clamp 122.

[0025] Through the above arrangement, the function of detecting the copper pipe 21 is achieved, and the interference between the front and rear copper pipes 21 is prevented to cause the copper pipe 21 to be scrapped. Specifically, initially, referring to Figure 3 and Figure 4At this time, the second clamp 123 clamps the guide rod 124, so as to fix the guide rod 124 above the second base 121, the first clamp 122 releases the guide rod 124, so that the copper pipe 21 does not interfere with the first clamp 122 when the copper pipe 21 is sleeved on the left end of the guide rod 124, the pushing device places the copper pipe 21 on the guide groove 112, at this time, the copper pipe 21 is located on the side of the pushing pipe 113 close to the guide device 12, then under the action of the first driving device 114, the pushing pipe 113 moves rightward to push the copper pipe 21 to move rightward, the copper pipe 21 and the pushing pipe 113 are coaxial, and the copper pipe 21 and the pushing pipe 113 move rightward along the guide groove 112, the guide rod 124 is inserted into the right end of the copper pipe 21, the copper pipe 21 passes through the first clamp 122 and approaches the second clamp 123, when the left end of the copper pipe 21 moves to the second driving device 125 through the first clamp 122, at this time, the left end of the guide rod 124 is also inserted into the pushing pipe 113, and the pushing pipe 113 is detected by the first photoelectric sensor 13, see Figure 7 and Figure 8 The first driving device 114 drives the pushing pipe 113 to move leftward to return to the first base 111, after the pushing pipe 113 leaves below the first photoelectric sensor 13, the first photoelectric sensor 13 detects the signal that the pushing pipe 113 leaves, which indicates that the pushing pipe 113 has left the first clamp 122, at this time, the first clamp 122 clamps the left end of the guide rod 124, and then the second clamp 123 releases the guide rod 124, so as to prevent the copper pipe 21 from interfering with the second clamp 123, see Figure 12 Then the second driving device 125 drives the copper pipe 21 to move rightward, the cold rolling mill is located on the right side of the guide device 12, the copper pipe 21 leaves the guide rod 124 and enters the cold rolling mill to be cold-rolled after passing through the second clamp 123, at this time, the second photoelectric sensor 14 detects the copper pipe 21, the cold rolling mill cold-rolls the copper pipe 21 while driving the copper pipe 21 to advance together with the second driving device 125, the guide rod 124 ensures the direction of the forward movement of the copper pipe 21, and finally the copper pipe 21 leaves the guide rod 124 as a whole, after the left end of the copper pipe 21 passes through the second photoelectric sensor 14, the second photoelectric sensor 14 detects the signal that the copper pipe 21 leaves, which indicates that the copper pipe 21 has left the second clamp 123, and at this time, the copper pipe 21 has been basically cold-rolled and can be fed with the next copper pipe 21, at this time, the second clamp 123 clamps the guide rod 124 again, then the first clamp 122 releases the guide rod 124 to prepare for the new copper pipe 21, and then the pushing device places the new copper pipe 21 on the feeding device 11 to prepare for the new cold rolling.

[0026] As an implementation manner, the end of the guide rod 124 close to the pushing pipe 113 is provided with a taper surface 1241 which facilitates the insertion of the guide rod 124 into the pushing pipe 113 and the copper pipe 21.

[0027] Through the above setting, the left end of the guide rod 124 is inserted into the copper pipe 21 and the pushing pipe 113.

[0028] As an implementation manner, the upper side of the first base 111 is provided with a moving groove 1111, the moving groove 1111 is arranged at the lower side of the guide groove 112 and communicates with the guide groove 112, the first driving device 114 includes first sprockets 1141 rotatably connected at two ends of the moving groove 1111, a first driving motor for driving the first sprockets 1141 to rotate, the first sprockets 1141 are connected through a first chain 1142, and the lower side of the end of the pushing pipe 113 away from the material guiding device 12 is fixedly connected with a connecting plate 1131, the connecting plate 1131 is connected with the first chain 1142.

[0029] Through the above setting, when the first driving motor drives the first sprockets 1141 to rotate, the first chain 1142 runs and drives the pushing pipe 113 to move along the guide groove 112 through the connecting plate 1131.

[0030] As an implementation manner, the upper side of the first base 111 is provided with a moving groove 1111, the moving groove 1111 is arranged at the lower side of the guide groove 112 and communicates with the guide groove 112, the first driving device 114 includes first sprockets 1141 rotatably connected at two ends of the moving groove 1111, a first driving motor for driving the first sprockets 1141 to rotate, the first sprockets 1141 are connected through a first chain 1142, and the lower side of the end of the pushing pipe 113 away from the material guiding device 12 is fixedly connected with a connecting plate 1131, the connecting plate 1131 is connected with the first chain 1142.

[0031] Through the above setting, when the pushing pipe 113 pushes the copper pipe 21 to the right, so that the left end of the copper pipe 21 moves to the right side of the supporting mechanism 1254, referring to Figure 7Then the pushing pipe 113 moves left to the first base 111 under the action of the first driving device 114, then the second driving motor drives the second chain 1214 to run through the second sprocket 1212, the second chain 1214 drives the supporting mechanism 1254 to move right through the trolley 1251, the wheel 1252 rolls on the guide rail 1211 so that the trolley 1251 runs stably, the supporting mechanism 1254 pushes the left end of the copper pipe 21 to make the copper pipe 21 move along the guide rod 124 to the cold rolling mill, the copper pipe 21 passes through the second clamp 123 and is cold-rolled in the cold rolling mill, the copper pipe 21 moves right while being cold-rolled, the supporting mechanism 1254 moves right along with the copper pipe 21, when the trolley 1251 moves to the right end of the guide rail 1211, the copper pipe 21 continues to move right under the action of the cold rolling mill, and the second driving motor reverses to drive the trolley 1251 to move left to the left end of the guide rail 1211 so that the next copper pipe 21 can be pushed.

[0032] As an implementation manner, the second base 121 is provided with a third photoelectric sensor 15 for sensing the trolley 1251 at one end close to the first clamp 122.

[0033] Through the above arrangement, the trolley 1251 can be detected, when the third photoelectric sensor 15 cannot sense the trolley 1251, that is, the trolley 1251 has not reached the left end of the guide rail 1211, at this time the feeding will be stopped, so that the copper pipe 21 cannot move to the cold rolling mill under the action of the second driving device 125, only when the trolley 1251 is located at the left end of the guide rail 1211, the steel pipe can continue to be cold-rolled.

[0034] As an implementation manner, the supporting mechanism 1254 includes two pushing blocks 12541, the guide rod 124 is arranged between the pushing blocks 12541, the end of the pushing block 12541 away from the other pushing block 12541 is rotationally connected with the trolley 1251, the extension direction of the pushing block 12541 is perpendicular to the extension direction of the guide rod 124, and the pushing block 12541 and the trolley 1251 are connected through the first spring 12542.

[0035] Through the above arrangement, referring to Figure 1 and Figure 2 When the pushing pipe 113 pushes the copper pipe 21 to move right along the guide rod 124, the copper pipe 21 pushes the pushing block 12541 to rotate when passing through the pushing block 12541, and the first spring 12542 is elongated, until the right end of the pushing pipe 113 passes through the pushing block 12541, referring to Figure 7 At this time, the left end of the copper pipe 21 moves to the right side of the pushing block 12541, then the pushing pipe 113 moves left to the first base 111 under the action of the first driving device 114, referring to Figure 8When the pushing pipe 113 leaves the pushing block 12541, the pushing block 12541 rotates to the initial state under the action of the first spring 12542, at this time when the vehicle 1251 moves to the right, the pushing block 12541 will push the left end of the copper pipe 21 and make the copper pipe 21 move along the guide rod 124 to the cold rolling mill.

[0036] As an implementation manner, the first clamp 122 comprises a first fixed seat 1221 fixedly connected with the second base 121, a first through hole 1222 arranged on the first fixed seat 1221, first sliding grooves 1223 arranged on the upper and lower sides of the first through hole 1222, first clamping blocks 1224 slidingly connected in the first sliding grooves 1223, the guide rod 124 passes through the first through hole 1222, and the first clamping blocks 1224 are located on the upper and lower sides of the guide rod 124, the groove bottoms of the first sliding grooves 1223 are provided with first air grooves 1225, the groove bottoms of the first air grooves 1225 are connected with the first clamping blocks 1224 through second springs 1226, and the cold rolling mill feeding system further comprises a pressure regulating device 16, the pressure regulating device 16 is connected with the first air grooves 1225 and is used for adjusting the air pressure of the first air grooves 1225.

[0037] Through the above setting, the first through hole 1222 passes through the guide rod 124, so that the guide rod 124 is as close to the feeding device 11 as possible, and then the movement of the pushing pipe 113 and the copper pipe 21 to the guide rod 124 is facilitated, when the pushing pipe 113 pushes the copper pipe 21 to move to the guide rod 124, the copper pipe 21 and the pushing pipe 113 pass through the first through hole 1222 and move to the guide rod 124, when the pressure regulating device 16 makes the air pressure of the first air grooves 1225 larger, the first clamping blocks 1224 move to the guide rod 124 along the first sliding grooves 1223 and clamp the guide rod 124, so as to fix the guide rod 124 above the second base 121, see Figure 12 When the pressure regulating device 16 makes the air pressure of the first air grooves 1225 smaller, the first clamping blocks 1224 move away from the guide rod 124 along the first sliding grooves 1223 under the action of the second springs 1226 and release the guide rod 124, so as to prevent the first clamping blocks 1224 from interfering with the copper pipe 21 and the pushing pipe 113.

[0038] As an implementation, the second clamp 123 comprises a second fixed seat 1231 fixedly connected with the second base 121, a second through hole 1232 arranged on the second fixed seat 1231, a second sliding groove 1233 arranged on the upper and lower sides of the second through hole 1232, a second clamping block 1234 slidingly connected in the second sliding groove 1233, and a guide rod 124 penetrating through the second through hole 1232 and located on the upper and lower sides of the guide rod 124. A groove bottom of the second sliding groove 1233 is provided with a second air groove 1235, a groove bottom of the second air groove 1235 is connected with the second clamping block 1234 through a third spring 1236, and the pressure regulating device 16 is connected with the second air groove 1235 and used for adjusting the air pressure of the second air groove 1235.

[0039] Through the above arrangement, the second through hole 1232 penetrates through the guide rod 124, so that the guide rod 124 is close to the cold rolling mill as much as possible, so that the copper pipe 21 can pass through the second through hole 1232 and move in a defined direction into the cold rolling mill to be cold-rolled. When the pressure regulating device 16 increases the air pressure of the second air groove 1235, the second clamping block 1234 moves along the second sliding groove 1233 to the guide rod 124 and clamps the guide rod 124, so as to fix the guide rod 124 above the second base 121. See Figure 9 When the pressure regulating device 16 reduces the air pressure of the second air groove 1235, the second clamping block 1234 moves away from the guide rod 124 along the second sliding groove 1233 under the action of the third spring 1236 and releases the guide rod 124, so as to prevent the second clamping block 1234 and the copper pipe 21 from interfering.

[0040] As an implementation manner, the pressure regulating device 16 comprises a horizontally extending cavity 161 arranged in the second base 121, a first piston 162 and a second piston 163 are slidingly connected in the cavity 161, one end of the cavity 161 close to the first piston 162 is communicated through the first air channel 164 and the first air groove 1225, the other end of the cavity 161 is communicated through the second air channel 165 and the second air groove 1235, a third driving device is arranged between the first piston 162 and the second piston 163, the second piston 163 and the other end of the cavity 161 close to the second air channel 165 are in abutment, the third driving device comprises a third driving motor 1661 arranged in the middle of the cavity 161, a rotating shaft 1662 connected with the third driving motor 1661, and two driving rods 1663 connected with the rotating shaft 1662, one end of one of the driving rods 1663 away from the second piston 163 and one end of the rotating shaft 1662 away from the third driving motor 1661 are fixedly connected, one end of the other driving rod 1663 away from the second piston 163 is penetrated by the rotating shaft 1662 and is rotationally connected with the rotating shaft 1662, a fourth spring 1664 is arranged on the rotating shaft 1662, the two driving rods 1663 are connected through the fourth spring 1664, one end of the driving rod 1663 fixedly connected with the rotating shaft 1662 away from the rotating shaft 1662 is upwardly inclined and rotationally connected with a roller 1665, one end of the driving rod 1663 rotationally connected with the rotating shaft 1662 away from the rotating shaft 1662 is downwardly inclined and rotationally connected with a roller 1665, the roller 1665 is in abutment with the second piston 163, the driving rod 1663 comprises a sleeve 16631 and a telescopic rod 16632 slidingly connected in the sleeve 16631, the roller 1665 is rotationally connected at one end of the telescopic rod 16632 away from the sleeve 16631, the sleeve 16631 is provided with a fifth spring 16633, one end of the fifth spring 16633 is connected with the sleeve 16631, and the other end of the fifth spring 16633 is connected with the telescopic rod 16632.

[0041] Through the above arrangement, one power source is used to drive the first clamp 122 and the second clamp 123, the control is simplified, and it can be prevented that the guide rod 124 is dropped because the first clamp 122 and the second clamp 123 are not clamped on the guide rod 124. Specifically, refer to Figure 4 and Figure 5, the fifth spring 16633 is in a compressed state, the fifth spring 16633 exerts a force on the roller 1665 towards the second piston 163, the fourth spring 1664 is also in a twisted state, that is, the fourth spring 1664 exerts a force on the driving rod 1663 towards the second piston 163, so that the driving rod 1663 extrudes the second piston 163 at the right end of the cavity 161 through the roller 1665, at this time, the air pressure in the second air channel 165 and the second air groove 1235 is high, so that the second clamp block 1234 clamps and fixes the guide rod 124 above the second base 121, the first piston 162 is close to the middle part of the cavity 161 and located at the left side of the rotating shaft 1662, so that the air pressure of the first air channel 164 and the first air groove 1225 is low, and the first clamp block 1224 is located in the first sliding groove 1223, so as to prevent the first clamp block 1224 from interfering with the copper pipe 21 and the pushing pipe 113. In order to facilitate the description, the driving rod 1663 fixedly connected with the rotating shaft 1662 is defined as the first rod, and the driving rod 1663 rotatably connected with the rotating shaft 1662 is defined as the second rod. When the copper pipe 21 moves to the guide rod 124, and when the pushing pipe 113 moves away from the first through hole 1222 and moves back to the first base 111, the third driving motor 1661 drives the rotating shaft 1662 to rotate counterclockwise by one hundred and eighty degrees as the only power source. In this process, the rotating shaft 1662 drives the first rod to rotate counterclockwise and pushes the first piston 162 to move leftwards, so that the air pressure of the first air channel 164 and the first air groove 1225 becomes larger, and the first clamp block 1224 abuts against the guide rod 124. See Figure 9 In the process of rotating, the fourth spring 1664 continues to be twisted, so that the torsion of the fourth spring 1664 on the second rod becomes larger. Under the action of the torsion, see Figure 10, the second rod will rotate upward, since the second rod is in an inclined state, when the second rod rotates upward, the fifth spring 16633 will be further compressed, thereby increasing the resistance of the second rod rotating upward, since the first piston 162 has not abutted against the left end of the cavity 161 at this time, the air pressure of the first air groove 1225 and the first air channel 164 has not reached the maximum, that is, the first clamp block 1224 has not clamped the guide rod 124, at this time the second rod still presses the second piston 163 at the right end of the cavity 161, that is, the second clamp 123 still clamps the guide rod 124, thereby preventing the guide rod 124 from falling, the third drive motor 1661 continues to drive the first rod to rotate counterclockwise through the rotating shaft 1662, until the end of the first rod away from the rotating shaft 1662 tilts downward, at this time the first rod presses the first piston 162 tightly at the left end of the cavity 161 through the roller 1665 under the action of the fifth spring 16633 of the first rod, the setting of the roller 1665 makes the resistance of the end of the first rod moving downward along the first piston 162 relatively small, at this time the air pressure of the first air channel 164 and the first air groove 1225 is the smallest, and the first clamp 122 clamps the guide rod 124, at this time the torsion of the fourth spring 1664 overcomes the resistance of the fifth spring 16633 of the second rod to drive the second rod to rotate counterclockwise around the axis of the rotating shaft 1662, in the process of rotating, the torsion of the fourth spring 1664 decreases, until the roller 1665 of the second rod and the first piston 162 abut, see Figure 12 , at this time the second piston 163 loses the action of the second rod and moves leftward, the air pressure of the second air channel 165 and the second air groove 1235 becomes smaller, the second clamp 123 releases the guide rod 124, thereby preventing the copper pipe 21 and the second clamp block 1234 from interfering, at this time the end of the second rod away from the rotating shaft 1662 tilts upward. Similarly, when the cold rolling of the copper pipe 21 is completed, the third drive motor 1661 continues to drive the rotating shaft 1662 to rotate counterclockwise by one hundred and eighty degrees, that is, it can return to the initial state to prepare for the cold rolling of the next copper pipe 21, see Figure 4 .

[0042] It should be understood that for those skilled in the art, improvements or changes can be made according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the present application.

Claims

1. A cold rolling mill feeding system, characterized in that, The utility model provides a cold rolling machine feeding system, including feeding device, guide material device, the feeding device includes first base, the guide groove of setting in the upper side of first base, the pushing material pipe of sliding connection on the guide groove is used for pushing copper pipe to the movement of guide material device, first drive arrangement is used for driving the pushing material pipe moves along the guide groove, the guide material device includes second base, the first clamp of setting in second base near the one end of feeding device, the second clamp of setting in the other end of second base, the guide rod of setting in the upper side of second base for the copper pipe sliding, second drive arrangement is used for driving the copper pipe moves along the guide rod, the guide rod and the pushing material pipe are coaxial, and the first clamp or / and the second clamp and the guide rod abutment; The first clamp includes the first fixed seat of fixed connection with the second base, the first through hole of setting on the first fixed seat, the first sliding slot of setting on the upper and lower sides of first through hole, the first clamping block of sliding connection in the first sliding slot, the guide rod passes through the first through hole, and the first clamping block is located on the upper and lower sides of guide rod, the groove bottom of first sliding slot is provided with first air groove, the groove bottom of first air groove is connected with first clamping block through second spring, the cold rolling machine feeding system further includes pressure regulating device, the pressure regulating device is connected with first air groove and is used for adjusting the air pressure of first air groove; The second clamp includes the second fixed seat of fixed connection with the second base, the second through hole of setting on the second fixed seat, the second sliding slot of setting on the upper and lower sides of second through hole, the second clamping block of sliding connection in the second sliding slot, the guide rod passes through the second through hole, and the second clamping block is located on the upper and lower sides of guide rod, the groove bottom of second sliding slot is provided with second air groove, the groove bottom of second air groove is connected with second clamping block through third spring, and the pressure regulating device is connected with second air groove and is used for adjusting the air pressure of second air groove; The pressure regulating device comprises a horizontally extending cavity arranged in the second base, a first piston and a second piston are slidably connected in the cavity, one end of the cavity close to the first piston is communicated with the first air channel and the first air groove, the other end of the cavity is communicated with the second air channel and the second air groove, a third driving device is arranged between the first piston and the second piston, the second piston abuts against one end of the cavity close to the second air channel, the third driving device comprises a third driving motor arranged in the middle of the cavity, a rotating shaft connected with the third driving motor, and two driving rods connected with the rotating shaft, one end of one of the driving rods away from the second piston is fixedly connected with one end of the rotating shaft away from the third driving motor, one end of the other driving rod away from the second piston is penetrated by the rotating shaft and rotatably connected with the rotating shaft, a fourth spring is arranged on the rotating shaft, the two driving rods are connected by the fourth spring, one end of the driving rod fixedly connected with the rotating shaft is upwardly inclined and rotatably connected with a roller, one end of the driving rod rotatably connected with the rotating shaft is downwardly inclined and rotatably connected with a roller, the rollers abut against the second piston, the driving rod comprises a sleeve and a telescopic rod slidably connected in the sleeve, the roller is rotatably connected with one end of the telescopic rod away from the sleeve, a fifth spring is arranged in the sleeve, one end of the fifth spring is connected with the sleeve, and the other end of the fifth spring is connected with the telescopic rod.

2. A feed system for a cold rolling mill as claimed in claim 1, wherein, One end of the guide rod close to the pushing pipe is provided with a taper surface for facilitating the insertion of the guide rod into the pushing pipe and the copper pipe.

3. A feed system for a cold rolling mill as claimed in claim 1, wherein, The upper side of the first base is provided with a movement groove arranged below the guide groove and communicated with the guide groove, the first driving device comprises first chain wheels rotatably connected at two ends of the movement groove, and a first driving motor for driving the rotation of the first chain wheels, the first chain wheels are connected by a first chain, the lower side of one end of the pushing pipe away from the material guiding device is fixedly connected with a connecting plate, and the connecting plate is connected with the first chain.

4. A feed system for a cold rolling mill as claimed in claim 3, characterised in that, The upper side of the second base is provided with a guide rail, one end of the guide rail is fixedly connected with the first clamp, and the other end of the guide rail is fixedly connected with the second clamp, the second driving device comprises a trolley arranged between the guide rail and the guide rod, and wheels rotatably connected with the trolley, the second base is rotatably connected with a second chain wheel at one end close to the first clamp, and rotatably connected with a third chain wheel at one end close to the second clamp, the second chain wheel and the third chain wheel are connected by a second chain, the second driving device further comprises a second driving motor for driving the rotation of the second chain wheel, and a supporting mechanism arranged on the upper side of the trolley for pushing the copper pipe to move towards the second clamp, and the second chain is connected with the trolley.

5. A feed system for a cold rolling mill as claimed in claim 4, wherein, The support mechanism comprises two push blocks, the guide rod is arranged between the push blocks, one end of the push block away from the other push block is rotationally connected with the vehicle, the extension direction of the push block is perpendicular to the extension direction of the guide rod, and the push block is connected with the vehicle through a first spring.

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