CN219786044U - Double-core cold drawing machine - Google Patents

Abstract

The utility model discloses a double-core cold drawing machine, which comprises a rack and a cold drawing die arranged on the rack, wherein a cold drawing cavity is formed in the cold drawing die, and an upper pipe structure and a push pipe structure are arranged on the rack; the pipe feeding structure comprises a feeding channel, a feeding frame connected with the feeding channel and a conveying mechanism arranged on the feeding frame, the conveying mechanism drives the pipe to move into the feeding channel along the feeding frame, the feeding channel transfers the pipe to the pipe pushing channel, and the pipe is sleeved on the pipe pushing structure; the push tube structure comprises push tube channels arranged on two sides of the frame, a push rod used for pushing the tube, and a swing mechanism connected with the push tube channels, wherein the push rod is arranged on the push tube channels in a sliding manner, the cold drawing cavity is arranged below the two sides of the push tube channels, the feeding channel is arranged above the two sides of the push tube channels, and the swing mechanism drives the two sides of the push tube channels to swing alternately to a first position opposite to the feeding channel and a second position opposite to the cold drawing cavity.

Description

Double-core cold drawing machine

Technical Field

The utility model relates to the technical field of pipe processing, in particular to a double-core cold drawing machine.

Background

Cold drawing of steel pipe is to stretch hot rolled seamless steel pipe at normal temperature through drawing hole to obtain product with specified diameter and wall thickness. Cold drawing is the main method for producing thin-wall, extremely thin-wall and large-diameter thin-wall pipes and capillaries, and has the advantages of high dimensional accuracy, small surface roughness and complete variety and specification of products, and the mechanical properties of the products can be improved by adopting a heat treatment method in the processing process, so that steel pipe cold drawing equipment has become common equipment in pipe processing.

For example, a steel tube cold drawing apparatus disclosed in publication No. CN113967666a includes a loading rail, a discharging rail, and a die device mounted between the loading rail and the discharging rail, the loading device mounted on the loading rail being adapted to rotationally push a steel tube to be cold drawn through the die device and to extend to the discharging rail, the discharging device mounted on the discharging rail being adapted to rotationally draw the steel tube to be cold drawn completely through the die device to complete cold drawing; the die device comprises a shell, an adjusting mechanism and a cold-drawing die part, wherein the adjusting mechanism and the cold-drawing die part are arranged in the shell, a cold-drawing cavity is formed in the cold-drawing die part, a steel pipe to be cold-drawn passes through the cold-drawing cavity in a rotating mode to finish cold drawing, and the adjusting mechanism is suitable for adjusting the size of the cold-drawing cavity.

However, the cold drawing equipment of the steel tube in the prior art has the following defects: after the cold drawing work is completed on the whole pipe in the cold drawing process of the pipe, the next pipe is subjected to feeding cold drawing, in the whole cold drawing process, when the pipe is subjected to cold drawing, the feeding part waits, and when the pipe is subjected to feeding, the cold drawing part waits, so that a large amount of waiting waste occurs in the whole equipment operation process, and the efficiency of the equipment is lower.

Disclosure of Invention

In order to solve the technical problems in the background technology, the utility model provides a double-core cold drawing machine.

The utility model solves the technical problems by adopting the following technical scheme:

the double-core cold drawing machine comprises a frame and a cold drawing die arranged on the frame, wherein a cold drawing cavity is formed in the cold drawing die, and an upper pipe structure and a push pipe structure are arranged on the frame;

the pipe feeding structure comprises a feeding channel, a feeding frame connected with the feeding channel and a conveying mechanism arranged on the feeding frame, wherein the conveying mechanism drives the pipe to move into the feeding channel along the feeding frame, and the feeding channel transfers the pipe to the pipe pushing channel and enables the pipe to be sleeved on the pipe pushing structure;

the push pipe structure comprises push pipe channels arranged on two sides of the frame, a push rod used for pushing pipes, and a swing mechanism connected with the push pipe channels, wherein the push rod is arranged on the push pipe channels in a sliding mode, the cold drawing cavity is arranged below the two sides of the push pipe channels, the feeding channel is arranged above the two sides of the push pipe channels, and the swing mechanism drives the two sides of the push pipe channels to swing alternately to a first position opposite to the feeding channel and a second position opposite to the cold drawing cavity.

Preferably, the swing mechanism comprises a rotating shaft arranged below the middle part of the cold drawing cavity, a swing plate fixed on the rotating shaft, a guide plate fixed on the frame and a connecting rod group used for driving the swing plate and the push pipe channel to rotate, wherein the connecting rod group is connected with a jacking cylinder, the swing plate is provided with swing arms extending on two sides of the rotating shaft, the connecting rod group is arranged on the swing arms and the guide plate in a sliding manner, and the tail end of the connecting rod group is fixed with the push pipe channel and drives the push pipe channel to swing up and down. Through the improvement, the lifting cylinder drives the connecting rod group to ascend, the connecting rod group drives one side of the swinging plate to ascend, so that the swinging plate drives the push tube channel on one side to ascend and the feeding channel on the other side to oppositely set, feeding is carried out, the feeding channel on the other side is driven to descend, cold drawing is carried out, feeding and cold drawing work are carried out simultaneously, alternating rotation is carried out, waiting time of equipment is reduced, and cold drawing efficiency is greatly increased.

Preferably, the swing arm is provided with a first chute, the guide plate is provided with a second chute, the connecting rod group is provided with a first transmission end arranged in the first chute and a second transmission end arranged in the second chute, the second chute is provided with a rising section and a falling section, and the second transmission end moves between the rising section and the falling section and drives the pushing pipe channels on the same side to rise to a first position or fall to a second position. Through the improvement, the connecting rod group slides in the first chute and the second chute to drive the push pipe channels on the same side to rise to the first position or descend to the second position, so that the push pipe channels on two sides rise or descend relatively, and simultaneous cold drawing and feeding are realized.

Preferably, a driving cylinder is arranged on the frame, and the output end of the driving cylinder is connected with the push rod so that the push rod moves back and forth along the feeding channel. Through the improvement, the output end of the driving cylinder drives the push rod to advance, so that the push rod pushes the top of the pipe into the cold drawing cavity.

Preferably, an abutting portion is formed on the push rod, and a sleeve space is formed between the abutting portion and the push tube channel. Through above improvement, butt portion and tubular product tip butt push into cold drawing intracavity with tubular product under butt portion effect, butt portion week side and push away tub passageway week side butt formation sleeve pipe space, make tubular product can establish on the push rod along the material loading passageway cover, and further improved the location of tubular product, guarantee the accuracy of pushing away the material in-process.

Preferably, the feeding channel is provided with an arc-shaped flange in a surrounding manner. Through the improvement, the arc-shaped flange provides limit of the circumference for the push rod and the pipe, so that the push rod or the pipe is prevented from being separated from the push pipe channel in the process of moving up and down of the push pipe channel, and the stability of the push pipe channels on two sides in the switching process is ensured.

Preferably, the feeding frame both sides are equipped with the fender material cylinder, fender material cylinder output is equipped with the striker plate, striker plate and tubular product butt. Through above improvement, keep off material cylinder drive striker plate and remove to control tubular product enters into in the material loading passageway, realize single tubular product ration pipe feeding.

Preferably, the end of the push rod is formed with a guide surface. Through the improvement, the guide surface at the end part of the push rod provides guide for the pipe in the process of sleeving the push rod, so that the pipe is easier to sleeve on the push rod.

Preferably, two sides of the feeding channel are provided with guide inclined planes. Through the improvement, the guide inclined plane provides a wire for the pipe, so that the pipe enters the feeding channel along the guide inclined plane, and the steel is prevented from being separated from the feeding channel in the feeding process, so that the stability in the feeding process is ensured.

Preferably, the rear section of the frame is also provided with a tube pulling structure, the tube pulling structure comprises a tube clamping mechanism and a moving mechanism for driving the tube clamping mechanism to move back and forth, the tube clamping mechanism is away from the tube pushing structure and is opposite to the cold drawing cavity, the tube clamping mechanism is abutted to the periphery of the tube, and the moving mechanism drives the tube clamping mechanism to move so that the tube completely passes through the cold drawing cavity. Through the improvement, the pipe clamping mechanism clamps the pipe, so that the whole pipe passes through the cold drawing cavity, and cold drawing is realized.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

the bottom of the push tube channel is provided with a swinging mechanism, the swinging mechanism comprises a rotating shaft arranged below the middle part of the cold drawing cavity, a swinging plate fixed on the rotating shaft, a guide plate fixed on the rack and a connecting rod group used for driving the swinging plate and the push tube channel to rotate, the connecting rod group is connected with a jacking cylinder, the swinging plate is provided with swinging arms extending relative to two sides of the rotating shaft, the connecting rod group is arranged on the swinging arms and the guide plate in a sliding manner, the tail end of the connecting rod group is fixed with the push tube channel, the jacking cylinder drives the connecting rod group to ascend, the connecting rod group drives one side of the swinging plate to ascend, so that the swinging plate drives the push tube channel on one side to ascend relative to the feeding channel to carry out feeding, and drives the feeding channel on the other side to descend for cold drawing, so that feeding and cold drawing work are carried out simultaneously, and alternate rotation is carried out, the waiting time of equipment is shortened, and cold drawing efficiency is greatly increased.

Drawings

FIG. 1 is a schematic structural view of the overall structure of the present utility model;

FIG. 2 is a schematic view of another angular structure of the overall structure of the present utility model;

FIG. 3 is a schematic view of the initial state of the swing mechanism according to the present utility model;

FIG. 4 is a schematic diagram of the structure of the push pipe channel and push rod of the present utility model;

FIG. 5 is a schematic structural view of the swing mechanism in the cold drawing state and the feeding state;

in the figure: 1. a frame; 2. cold drawing the mold; 3. cold drawing the cavity; 4. a push tube structure; 5. an upper tube structure; 6. a tube pulling structure; 7. a pipe; 101. a push tube channel; 102. a push rod; 103. a swinging mechanism; 104. a feeding channel; 105. a feeding frame; 106. a conveying mechanism; 107. a tube clamping mechanism; 108. a moving mechanism; 109. a first position; 110. a second position; 201. jacking the air cylinder; 202. a rotating shaft; 203. a swinging plate; 204. a linkage; 205. a guide plate; 206. a first chute; 207. a second chute; 208. a driving cylinder; 209. swing arms; 210. a rising section; 211. a descent section; 212. a first driving end; 213. a second driving end; 301. an abutting portion; 302. a cannula space; 303. an arc-shaped flange; 304. a material blocking cylinder; 305. a striker plate; 306. a guide surface; 307. a material guiding inclined plane; 401. a conveyor belt; 402. a rotating roller; 403. a motor;

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that, although the terms upper, middle, lower, top, end, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another for ease of understanding and are not used to define any directional or sequential limitation.

As shown in fig. 1-5, a double-core cold drawing machine comprises a frame 1 and a cold drawing die 2 arranged on the frame 1, wherein a cold drawing cavity 3 is formed in the cold drawing die 2, and an upper pipe structure 5 and a push pipe structure 4 are arranged on the frame 1;

the pipe feeding structure 5 comprises a feeding channel 104 positioned above the middle part of the cold drawing cavity 3, a feeding frame 105 connected with the feeding channel 104 and a conveying mechanism 106 arranged on the feeding frame 105, a plurality of pipes 7 are placed on the feeding frame 105, the pipes 7 are moved into the feeding channel 104 along the feeding frame 105 under the action of the conveying mechanism 106, the feeding channel 104 transfers the pipes 7 to the push pipe channel 101, and the pipes 7 are sleeved on the push rod 102 of the push pipe structure 4.

The push tube structure 4 comprises push tube channels 101 arranged on two sides of the frame 1, push rods 102 used for pushing the tubes 7, and a swinging mechanism 103 connected with the push tube channels 101, wherein the push rods 102 are arranged in the push tube channels 101 in a sliding manner, the push rods 102 are in butt joint with the tubes 7, the ends of the tubes 7 are driven to be placed into the cold drawing cavities 3, the cold drawing cavities 3 are positioned below the middle parts of the push tube channels 101 on two sides in an initial state, the feeding channels 104 are positioned above the push tube channels 101 on two sides in the initial state, the swinging mechanism 103 drives the push tube channels 101 on two sides to swing up and down relatively, the push tube channels 101 on two sides are enabled to move between a first position 109 and a second position 110, the push tube channels 101 on two sides are enabled to be respectively arranged opposite to the feeding channels 104 of the cold drawing cavities 3 or the upper tube structure 5, and the push tube channels 101 on one side are enabled to be arranged opposite to the cold drawing cavities 3, and the pushing tube channels 101 on the other side are enabled to be arranged opposite to the feeding channels 104, and the tubes 7 of the feeding channels 104 are enabled to enter the push tube channels 101 to be capable of realizing feeding, feeding and alternately, and the waiting time of the device is greatly prolonged.

As shown in fig. 3 and 5, as a further explanation of the swing mechanism 103 in the present embodiment, the swing mechanism 103 includes a rotating shaft 202 arranged below the middle portion of the cold drawing chamber 3, a swing plate 203 fixed to the rotating shaft 202, a guide plate 205 fixed to the frame 1, and a link group 204 for driving the swing plate 203 and the push tube passage 101 to rotate, the bottom of the link group 204 is connected with a lift cylinder 201, the swing plate 203 has swing arms 209 extending on both sides of the rotating shaft 202, the link group 204 is slidably provided on the swing arms 209 and the guide plate 205, and the top of the link group 204 is fixedly connected to the push tube passage 101 and drives the push rod 102 to swing up and down. Because swing arms 209 on two sides of the swing plate 203 are in a V shape, one side of the swing plate 203 ascends, the other side descends, when the jacking cylinder 201 drives the connecting rod group 204 to ascend, the swing plate 203 drives the push tube channel 101 on one side to ascend and the feeding channel 104 to be arranged opposite to each other, feeding is performed, the feeding channel 104 on the other side is driven to descend, cold drawing is performed, feeding and cold drawing work are performed simultaneously, alternating rotation is performed, waiting time of equipment is reduced, and cold drawing efficiency is greatly increased.

Specifically, the first sliding groove 206 is disposed on the swing guiding arm 209, the second sliding groove 207 is disposed on the guiding plate 205, the connecting rod group 204 has a first driving end 212 slidably disposed in the first sliding groove 206, and a second driving end 213 slidably disposed in the second sliding groove 207, the second sliding groove 207 has an ascending section 210 and a descending section 211, the second driving end 213 moves between the ascending section 210 and the descending section 211, and drives the push tube channel 101 on the same side to ascend to the first position 109 for feeding, so that the push tube channel 101 on the other side descends to the second position 110 for cold drawing, or drives the push tube channel 101 on the same side to descend to the second position 110 for cold drawing, and synchronously drives the push tube channel 101 on the other side to ascend to the first position 109 for feeding, so as to realize simultaneous feeding and cold drawing work, and alternate rotation, thereby reducing waiting time of the device and greatly increasing cold drawing efficiency.

In this embodiment, a driving cylinder 208 is disposed on the frame 1, and an output end of the driving cylinder 208 is connected with the push rod 102, so that the push rod 102 moves back and forth along the feeding channel 104, and thus, an end of the pipe 7 is pushed into the cold drawing cavity 3, although other driving structures may be used instead of the driving cylinder 208.

As shown in fig. 1 and 2, for further explanation of the upper pipe structure 5 in this embodiment, a plurality of pipes 7 are placed on the feeding frame 105, the conveying mechanism 106 includes a rotating roller 402, a conveyor belt 401 and a motor 403 for driving the rotating roller 402 to rotate, the conveyor belt 401 is disposed on the rotating roller 402, the motor 403 drives the rotating roller 402 to rotate, thereby driving the conveyor belt 401 to rotate, the pipes 7 are moved laterally along the feeding frame 105 into the feeding channel 104 under the action of the conveyor belt 401, a chain transfer mechanism is disposed in the feeding channel 104, the pipes 7 are conveyed onto the push pipe channel 101 disposed opposite to the feeding channel 104 by the rotation of the chain, and the pipes 7 are sleeved on the push rod 102.

Further, the two sides of the feeding frame 105 are provided with material blocking cylinders 304, the output end of each material blocking cylinder 304 is provided with a material blocking plate 305, the material blocking plates 305 are abutted against the tubes 7, and the material blocking cylinders 304 drive the material blocking plates 305 to move, so that the tubes 7 are controlled to enter the feeding channel 104, and quantitative feeding of the single tube 7 is realized.

Preferably, the two sides of the feeding channel 104 are provided with the guiding inclined planes 307, the guiding inclined planes 307 provide guiding for the pipe 7, so that the pipe 7 enters the feeding channel 104 along the guiding inclined planes 307, and steel is prevented from being separated from the feeding channel 104 in the feeding process, and the stability in the feeding process is ensured.

In some other embodiments, the conveying mechanism 106 on the feeding frame 105 may also be a chain conveying mechanism, and by arranging a plurality of clamping edges on the chain at intervals, the clamping edges are utilized to move a single pipe 7, so that the pipe 7 enters the feeding channel 104.

As shown in fig. 4, as a further explanation of the cooperation between the push rod 102 and the push tube channel 101 in this embodiment, an abutment portion 301 is formed on the push rod 102, a sleeve space 302 is formed between the abutment portion 301 and the push tube channel 101, the abutment portion 301 abuts against the end portion of the tube 7, the tube 7 is pushed into the cold drawing cavity 3 under the action of the abutment portion 301, and the circumferential side of the abutment portion 301 abuts against the circumferential side of the push tube channel 101 to form the sleeve space 302, so that the tube 7 can be sleeved on the push rod 102 along the feeding channel 104, positioning of the tube 7 is further improved, and accuracy in the pushing process is ensured.

Further, the arc-shaped flanges 303 are arranged on the feeding channel 104 in a surrounding manner, the arc-shaped flanges 303 provide limit on the circumference of the push rod 102 and the tube 7, the situation that the push rod 102 or the tube 7 is separated from the tube pushing channel 101 in the up-and-down movement process of the tube pushing channel 101 is avoided, and the stability of the tube pushing channels 101 on two sides in the switching process is ensured.

Preferably, the end of the push rod 102 is formed with a guide surface 306, and the guide surface 306 at the end of the push rod 102 provides a guide for the tubing 7 during the process of being sleeved on the push rod 102, so that the tubing 7 is more easily sleeved on the push rod 102.

As shown in fig. 1, in this embodiment, the rear section of the stand 1 is provided with a tube drawing structure 6, the tube drawing structure 6 includes a tube clamping mechanism 107, and a moving mechanism 108 for driving the tube clamping mechanism 107 to move back and forth, the tube clamping mechanism 107 is disposed away from the upper tube structure 5 and opposite to the cold drawing cavity 3, the tube clamping mechanism 107 clamps the tube 7 and abuts on the peripheral side, and the moving mechanism 108 drives the tube clamping mechanism 107 to move, so that the tube 7 completely passes through the cold drawing cavity 3 to complete cold drawing.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.

Claims (10)

1. The double-core cold drawing machine comprises a frame (1) and a cold drawing die (2) arranged on the frame (1), wherein a cold drawing cavity (3) is formed in the cold drawing die (2), and the double-core cold drawing machine is characterized in that an upper pipe structure (5) and a push pipe structure (4) are arranged on the frame (1);

the pipe feeding structure (5) comprises a feeding channel (104), a feeding frame (105) connected with the feeding channel (104) and a conveying mechanism (106) arranged on the feeding frame (105), wherein the conveying mechanism (106) drives the pipe (7) to move into the feeding channel (104) along the feeding frame (105), the feeding channel (104) transfers the pipe (7) to the pipe pushing channel (101) and enables the pipe (7) to be sleeved on the pipe pushing structure (4);

push away tub structure (4), including locating push away tub passageway (101) of frame (1) both sides, be used for pushing away push rod (102) of tubular product (7), and swing mechanism (103) be connected with push away tub passageway (101), push rod (102) slide and set up on push away tub passageway (101), put in cold drawing chamber (3) both sides push away tub passageway (101) below, put in material loading passageway (104) and put in both sides push away tub passageway (101) top, swing mechanism (103) drive both sides push away tub passageway (101) swing alternately to first position (109) opposite with material loading passageway (104), and second position (110) opposite with cold drawing chamber (3).

2. The twin-core cold drawing machine according to claim 1, wherein the swinging mechanism (103) comprises a rotating shaft (202) arranged below the middle part of the cold drawing cavity (3), a swinging plate (203) fixed on the rotating shaft (202), a guide plate (205) fixed on the frame (1), and a connecting rod group (204) for driving the swinging plate (203) and the push tube channel (101) to rotate, the connecting rod group (204) is connected with a jacking cylinder (201), the swinging plate (203) is provided with swinging arms (209) extending on two sides of the rotating shaft (202), the connecting rod group (204) is slidably arranged on the swinging arms (209) and the guide plate (205), and the tail end of the connecting rod group (204) is fixedly connected with the push tube channel (101) and drives the push rod (102) to swing up and down.

3. A twin-core cold drawing machine according to claim 2, in which the swing arm (209) is provided with a first chute (206), the guide plate (205) is provided with a second chute (207), the linkage (204) has a first driving end (212) arranged in the first chute (206) and a second driving end (213) arranged in the second chute (207), the second chute (207) has an ascending section (210) and a descending section (211), and the second driving end (213) moves between the ascending section (210) and the descending section (211) and drives the same side push tube channel (101) to ascend to the first position (109) or descend to the second position (110).

4. The twin-core cold drawing machine according to claim 1, wherein the frame (1) is provided with a driving cylinder (208), and the output end of the driving cylinder (208) is connected with the push rod (102) so that the push rod (102) moves back and forth along the feeding channel (104).

5. The twin-core cold drawing machine according to claim 1, wherein an abutment (301) is formed on the push rod (102), and a sleeve space (302) is formed between the abutment (301) and the push tube channel (101).

6. A twin-core cold drawing machine according to claim 1, wherein the loading channel (104) is provided with an arcuate flange (303) in a ring.

7. The twin-core cold drawing machine according to claim 1, wherein two sides of the feeding frame (105) are provided with material blocking cylinders (304), the output ends of the material blocking cylinders (304) are provided with material blocking plates (305), and the material blocking plates (305) are abutted with the pipe (7).

8. A twin-core cold drawing machine according to claim 1, in which the end of the push rod (102) is formed with a guide surface (306).

9. The twin-core cold drawing machine according to claim 1, wherein the feed channel (104) is formed with a guide bevel (307) on both sides.

10. The twin-core cold drawing machine according to claim 1, wherein the rear section of the frame (1) is further provided with a tube drawing structure (6), the tube drawing structure (6) comprises a tube clamping mechanism (107) and a moving mechanism (108) for driving the tube clamping mechanism (107) to move forwards and backwards, the tube clamping mechanism (107) is arranged opposite to the cold drawing cavity (3) and away from the push tube structure (4), the tube clamping mechanism (107) is abutted to the peripheral side of the tube (7), and the moving mechanism (108) drives the tube clamping mechanism (107) to move so that the tube (7) completely passes through the cold drawing cavity (3).