Pipe drawing machine

Abstract

The utility model discloses a pipe fitting drawing machine which comprises a correcting device used for correcting the direction of a drawing opening, a conveying device used for conveying pipe fittings to the correcting device, a drawing device and a pipe moving device used for transferring the pipe fittings, and the pipe fittings on the conveying device are sequentially moved to the correcting device and the drawing device through the pipe moving device. Wherein the drawing device comprises a movable mold, a fixed mold, a drawing ball and a pressing column used for pressing the drawing ball, the movable mold and the fixed mold are closed to form a pipe cavity matched with a pipe fitting, and the fixed mold is provided with a drawing channel communicated with the pipe cavity; the drawing ball is squeezed into the drawing channel through the downward pressing column, so that a pipe opening is formed by a drawing opening of the pipe fitting; the correcting device comprises a rotating base and a detecting element used for detecting the drawing opening, the rotating base is provided with a sleeving column allowing the pipe fitting to be arranged in a sleeving mode so that when the drawing opening of the pipe fitting rotates to the position of the detecting element, and the direction of the drawing opening is parallel to the drawing channel. By adopting the pipe drawing device, the position of the drawing opening before the pipe is drawn can be automatically adjusted, so that the drawing process of the pipe is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipe fitting processing equipment technical field especially relates to a pipe drawing machine. BACKGROUND

[0002] In the processing of pipe fittings, a common tee pipe is produced, which generally needs to be perforated on the side wall of the water pipe, and then the pipe opening is molded at the perforation. The pipe opening can be formed into a tee pipe by welding a small section of pipe, but this type of manufacturing process is mainly used for large pipe fittings or thick-walled pipe fittings, and all need to be welded by hand, which is low in production efficiency. For the tee pipe of the daily-used water pipe fitting, the tee pipe is formed by drawing a ball, which can save the trouble of manual welding. For this production process, based on the rotation of the pipe fitting itself, it is difficult to ensure the orientation of the drawing opening of the pipe fitting during pipe fitting feeding, so manual clamping of the pipe fitting is still needed in the feeding process, and the production efficiency is limited. SUMMARY

[0003] The technical problem to be solved by the embodiment of the utility model is to provide a pipe drawing machine that can automatically adjust the position of the drawing opening before pipe drawing, so as to facilitate the pipe drawing process.

[0004] To solve the above technical problems, the embodiment of the utility model provides a pipe drawing machine, which comprises a correcting device for correcting the orientation of the drawing opening, a conveying device for conveying the pipe fitting to the correcting device, a drawing device, and a pipe transferring device for transferring the pipe fitting, the pipe fitting on the conveying device is transferred to the correcting device and the drawing device in turn through the pipe transferring device;

[0005] The drawing device comprises a movable die, a fixed die, a drawing ball, and a pressing column for pressing the drawing ball, the movable die and the fixed die are closed to form a pipe cavity matched with the pipe fitting, the fixed die is provided with a drawing channel communicating with the pipe cavity, the drawing ball is extruded into the drawing channel through the pressing column, so that the drawing opening of the pipe fitting forms a pipe opening;

[0006] The correcting device comprises a rotating base and a detection element for detecting the drawing opening, the rotating base is provided with a sleeve column for sleeving the pipe fitting, so that the drawing opening of the pipe fitting is turned to the detection element, and the orientation of the drawing opening is parallel to the drawing channel.

[0007] As an improvement of the above-mentioned scheme, the pipe transferring device comprises a cantilever clamping mechanism and a translation feeding mechanism, the translation feeding mechanism comprises a translation sliding seat, a slide rail for mounting the translation sliding seat, and a translation driving mechanism for driving the translation sliding seat to move along the slide rail;

[0008] The translation sliding seat is provided with a mold closing fixed column for pipe fitting, and the pipe on the conveying device is moved to the fitting column and the mold closing fixed column through the cantilever clamping mechanism.

[0009] As an improvement of the above scheme, the cantilever clamping mechanism is located above the conveying device, the translation feeding mechanism and the correcting device.

[0010] The cantilever clamping mechanism comprises a cantilever frame, a clamping cantilever, a cantilever guide rail for guiding the movement of the clamping cantilever and a cantilever driving mechanism, and the cantilever driving mechanism drives the clamping cantilever to move along the cantilever guide rail to pass above the conveying device, the fitting column and the mold closing fixed column.

[0011] As an improvement of the above scheme, the clamping cantilever comprises a cantilever sliding seat slidingly connected to the cantilever guide rail, a cantilever lifting mechanism and a clamping mechanism, the clamping mechanism is connected to the cantilever sliding seat through the cantilever lifting mechanism, and the cantilever lifting mechanism drives the clamping mechanism to move downward to clamp the workpiece.

[0012] As an improvement of the above scheme, the translation sliding seat comprises a sliding base slidingly connected to the slide rail and a side feeding guide rail parallel to the closing direction of the movable mold, and a side feeding base is installed on the side feeding guide rail, and the mold closing fixed column is arranged on the side feeding base.

[0013] The translation feeding mechanism further comprises a mold closing side feeding mechanism for moving the side feeding base to the fixed mold, and after the sliding base moves along the slide rail to the space between the movable mold and the fixed mold, the mold closing side feeding mechanism drives the side feeding base to move to the fixed mold.

[0014] As an improvement of the above scheme, the mold closing side feeding mechanism comprises a docking piece for driving the side feeding base and a side feeding telescopic driving mechanism for driving the docking piece, and one side of the side feeding base is provided with a T-shaped slot matched with the docking piece, and after the side feeding base moves along the slide rail to the space between the movable mold and the fixed mold, the docking piece is arranged in the T-shaped slot.

[0015] As an improvement of the above scheme, the docking piece comprises an extension shaft with a diameter smaller than the width of the T-shaped slot and a roller with a diameter larger than the width of the T-shaped slot, and the roller is installed on the extension shaft to form a T-shaped cross-section structure.

[0016] As an improvement of the above scheme, the bottom end of the pressing column is provided with a top pressing inclined surface facing the drawing channel, and the top of the mold closing fixed column is provided with a drawing guide slot for guiding the drawing ball to move to the drawing channel, so that the drawing ball is pressed downward by the top pressing inclined surface and moves into the drawing channel along the drawing guide slot.

[0017] As an improvement of the above-mentioned scheme, it further comprises a ball collecting and recycling mechanism for recycling and reusing the drawing ball, the ball collecting and recycling mechanism comprising a ball collecting disc and a ball disc lifting driving mechanism for driving the ball collecting disc to lift and descend.

[0018] The ball collecting disc is located at the outlet side of the drawing channel, the top of the fixed die is provided with a ball guide groove for guiding the drawing ball to fall into the tube cavity, and the ball collecting disc receiving the drawing ball is lifted to the ball guide groove through the ball disc lifting driving, so that the drawing ball reenters the tube cavity along the ball guide groove.

[0019] As an improvement of the above-mentioned scheme, the ball disc lifting driving mechanism is provided with a driving rod for supporting the ball collecting disc, the bottom of the ball collecting disc is provided with a hinged groove for placing the driving rod and providing a hinged space, and one end of the driving rod is hinged in the hinged groove to limit the swing amplitude of the ball collecting disc relative to the driving rod.

[0020] The utility model has the advantages that:

[0021] The utility model discloses a pipe drawing machine, including the rectification device for rectifying the drawing port orientation, the conveying device for conveying pipe to the rectification device, the drawing device and the pipe transfer device for pipe transfer, and the pipe on the conveying device is transferred to the rectification device and drawing device in proper order through the pipe, thereby the automatic drawing production of pipe is completed.

[0022] Moreover, the rectification device comprises a rotating base and a detection element for detecting the drawing port, the rotating base is provided with a sleeve column for the pipe to be sleeved, so that the drawing port of the pipe is turned to the detection element, and the orientation of the drawing port is parallel to the drawing channel, when the pipe is sleeved in the sleeve column through the pipe transfer device, if the orientation of the drawing port is not consistent with the preset drawing direction, the rotating base can be driven to rotate to adjust the direction of the drawing port, so as to meet the processing requirement of the drawing device.

[0023] The drawing device comprises a movable die, a fixed die, a drawing ball and a pressing column for pressing the drawing ball, the movable die and the fixed die are closed to form a tube cavity matched with the pipe, the fixed die is provided with a drawing channel communicated with the tube cavity, the drawing ball is extruded into the drawing channel through the pressing column, so that the drawing port of the pipe forms a tube port, thereby the process of manually welding and shaping the tube port is avoided, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the structure schematic diagram of the pipe drawing machine of the utility model;

[0025] Figure 2is another angle structure schematic diagram of pipe drawing machine of the utility model;

[0026] Figure 3 is structure schematic diagram of drawing device of the utility model;

[0027] Figure 4 is structure schematic diagram of set ball circulating mechanism of the utility model. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantage of the utility model more clear, the utility model will be further described in detail below in conjunction with drawings.

[0029] Referring to Figure 1 、 2 And 3, the utility model embodiment provides a pipe drawing machine, including for correcting drawing port orientation correction device 1, the conveying device 2 of conveying pipe to the correction device 1, drawing device 3 and for pipe transfer transfer device, the pipe on conveying device 2 is sequentially moved to the correction device 1 and drawing device 3 by the transfer device;

[0030] Wherein, the drawing device 3 includes movable die 31, fixed die 32, drawing ball 33 and for the lower pressure column 34 of drawing ball 33, the movable die 31 and fixed die 32 between closure form the pipe cavity 35 compatible with pipe, the fixed die 32 is equipped with the drawing channel 321 of intercommunication with the pipe cavity, by the lower pressure column 34 drawing ball 33 is extruded into the drawing channel 321, to make the drawing port of pipe form pipe opening;The pipe cavity 35 and drawing channel between T-shaped distribution.

[0031] The correction device 1 includes rotating base 11 and for detecting drawing port detection element 12, the rotating base 11 is equipped with the sleeve joint column 111 for pipe sleeve, to in the drawing port of pipe transfer to detection element 12, the orientation of the drawing port is parallel with the drawing channel 321.The detection element 12 can be infrared detector or laser detector, such as can utilize infrared ranging mode, when drawing port turns to detection element 12, can pass through the numerical value change of judging distance, judges the position of drawing port, to cooperate the rotation of rotating base 11, makes the drawing hole of pipe transfer to the direction required.

[0032] The transfer device includes cantilever clamping mechanism 4 and translation feed mechanism 5, the translation feed mechanism 5 includes translation sliding seat 51, for installing translation sliding seat 51 sliding rail 52 and for driving translation sliding seat 51 along sliding rail 52 translation drive mechanism 55, translation drive mechanism 55 is preferably prior art screw transmission mechanism.

[0033] The translation sliding seat 51 is provided with a mold closing fixed column 53 for pipe fitting sleeving, and the pipe fitting on the conveying device 2 is moved to the sleeve joint column 111 and the mold closing fixed column 53 in sequence through the cantilever clamping mechanism 4, so that the work station transfer of the pipe fitting is completed.

[0034] In detail, the cantilever clamping mechanism 4 is located above the conveying device 2, the translation feeding mechanism 5 and the correcting device 1; the conveying device 1 comprises a conveying belt 21 and a limiting baffle 22 provided on the conveying belt 21 to limit the moving track of the pipe fitting on the conveying belt so that the pipe fitting is in the clamping work station range of the cantilever clamping mechanism. The limiting baffle is in U shape.

[0035] The cantilever clamping mechanism 4 comprises a cantilever rack 41, a clamping cantilever, a cantilever guide rail 42 for guiding the movement of the clamping cantilever and a cantilever driving mechanism for driving the clamping cantilever to move along the cantilever guide rail 42 to pass above the conveying device 2, the sleeve joint column 111 and the mold closing fixed column 53 in sequence.

[0036] The clamping cantilever comprises a cantilever sliding seat 43 slidingly connected to the cantilever guide rail 42, a cantilever lifting mechanism 44 and a clamping mechanism 45 connected to the cantilever sliding seat 43 through the cantilever lifting mechanism 44, and the cantilever lifting mechanism 44 drives the clamping mechanism 45 to move downward to clamp the workpiece. The clamping mechanism 45 is preferably a pneumatic finger in the prior art.

[0037] The translation sliding seat 51 comprises a sliding base 511 slidingly connected to the slide rail 52 and a side feeding guide rail parallel to the mold closing direction of the movable mold 31 and a side feeding base 512 mounted on the side feeding guide rail, and the mold closing fixed column 53 is arranged on the side feeding base 512.

[0038] Based on the fixed arrangement of the fixed mold 32, in order to enable the pipe fitting to be placed into the fixed mold 32, the translation feeding mechanism 5 further comprises a mold closing side feeding mechanism for moving the side feeding base 512 to the fixed mold 32, so that after the sliding base 511 moves along the slide rail 52 to between the movable mold 31 and the fixed mold 32, the mold closing side feeding mechanism drives the side feeding base 512 to move to the fixed mold 32.

[0039] In detail, the mold closing side feeding mechanism comprises a docking member 54 for driving the side feeding base 512 and a side feeding telescopic driving mechanism for driving the docking member 54. One side of the side feeding base 512 is provided with a T-shaped slot 5121 matched with the docking member 54. After the side feeding base 512 is moved along the slide rail 52 to the position between the movable mold 31 and the fixed mold 32, the docking member is placed in the T-shaped slot 5121, so that the pipe is driven to enter or exit the inside of the fixed mold 32 along the mold closing direction. It should be noted that the fixed mold 32 and the movable mold 31 are both provided with a semicircular groove for forming the pipe cavity 35, that is, the pipe is close to the semicircular groove of the fixed mold 32 through the mold closing side feeding mechanism, so as to cooperate with the mold closing of the movable mold 31.

[0040] Preferably, the docking member 54 comprises an extension shaft 541 with a diameter smaller than the width of the T-shaped slot and a roller 542 with a diameter larger than the width of the T-shaped slot, and the roller 542 is installed on the extension shaft 541 to form a T-shaped cross-section structure. The arrangement of the roller 542 can improve the smoothness of the docking member 54 placed in the T-shaped slot 5121 and reduce the wear between the roller 542 and the T-shaped slot 5121.

[0041] The bottom end of the pressing column 34 is provided with a top pressing inclined surface 341 facing the drawing channel 321, and the top of the mold closing fixed column 53 is provided with a drawing guide slot 531 for guiding the drawing ball 33 to move to the drawing channel 321, so that the drawing ball 33 is pressed downward by the top pressing inclined surface 341 and moves into the drawing channel 321 along the drawing guide slot 531. Preferably, the pressing column 34 is driven by a hydraulic telescopic mechanism of the prior art.

[0042] Referring to Figure 4 In order to facilitate the circulation of the drawing process, the pipe drawing machine further comprises a ball collecting and circulating mechanism 6 for recycling and circulating the drawing ball 33. The ball collecting and circulating mechanism comprises a ball collecting disc 61 and a ball disc lifting driving mechanism 62 for driving the ball collecting disc 61 to lift.

[0043] The ball collecting disc 61 is located at the outlet side of the drawing channel 321, that is, the drawing channel 321 penetrates through the fixed mold 32, and the pipe opening of the pipe is drawn and formed at the inlet side of the drawing channel 321. The top of the fixed mold 32 is provided with a ball guide groove 321 for guiding the drawing ball 33 to fall into the pipe cavity. The ball collecting disc 61 receiving the drawing ball 33 is lifted to the ball guide groove 321 by the ball disc lifting driving mechanism 62, so that the drawing ball 33 reenters the pipe cavity 35 along the ball guide groove 321.

[0044] Preferably, the ball disc lifting driving mechanism 62 is provided with a driving rod 63 for supporting the ball collecting disc 61, the bottom of the ball collecting disc 61 is provided with a hinged groove 611 for the driving rod to be put into and provide a hinged space, one end of the driving rod 63 is hinged in the hinged groove to limit the swing range of the ball collecting disc 61 relative to the driving rod 63. The side wall of the ball collecting disc 61 is in contact with the side wall of the fixed mold 32, so that the ball collecting disc 61 can be maintained in a horizontal state, when the ball collecting disc 61 rises to the guide ball groove 321 and loses the lateral support of the fixed mold 32, under the action of the gravity of the drawing ball 33, the ball collecting disc 61 will tilt towards the guide ball groove 321, so that the drawing ball 33 rolls into the guide ball groove 321 and then falls into the lumen 35. Correspondingly, when the ball collecting disc 61 is reset to the outlet side of the drawing channel 321, the ball collecting disc 61 will be in contact with the side wall of the fixed mold 32 again to restore the horizontal setting state to receive the drawing ball 33.

[0045] The above is the preferred embodiment of the present application, it should be pointed out that for those skilled in the art, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements are also considered to be within the scope of the present application.

Claims

1. A tube drawing machine, characterized in that, The device comprises a correcting device for correcting the orientation of the drawing opening, a conveying device for conveying the pipe to the correcting device, a drawing device and a pipe transferring device for transferring the pipe, the pipe on the conveying device is transferred to the correcting device and the drawing device in sequence through the pipe transferring device; The drawing device comprises a movable die, a fixed die, a drawing ball and a pressing column for pressing the drawing ball, the movable die and the fixed die are closed to form a pipe cavity which is suitable for the pipe, the fixed die is provided with a drawing channel which is communicated with the pipe cavity, the drawing ball is pressed into the drawing channel through the pressing column to form a pipe opening of the pipe; The correcting device comprises a rotating base and a detecting element for detecting the drawing opening, the rotating base is provided with a sleeve column for sleeing the pipe, so that the drawing opening is turned to the detecting element and the orientation of the drawing opening is parallel to the drawing channel.

2. The tube-pulling machine according to claim 1, wherein The pipe transferring device comprises a cantilever clamping mechanism and a translation feeding mechanism, the translation feeding mechanism comprises a translation sliding seat, a slide rail for installing the translation sliding seat and a translation driving mechanism for driving the translation sliding seat to move along the slide rail; The translation sliding seat is provided with a die closing fixed column for sleeing the pipe, the pipe on the conveying device is transferred to the sleeve column and the die closing fixed column in sequence through the cantilever clamping mechanism.

3. The tube-pulling machine according to claim 2, wherein The cantilever clamping mechanism is located above the conveying device, the translation feeding mechanism and the correcting device; The cantilever clamping mechanism comprises a cantilever frame, a clamping cantilever, a cantilever guide rail for guiding the clamping cantilever to move and a cantilever driving mechanism, the cantilever driving mechanism drives the clamping cantilever to move along the cantilever guide rail to pass above the conveying device, the sleeve column and the die closing fixed column in sequence.

4. The tube-pulling machine according to claim 3, wherein The clamping cantilever comprises a cantilever sliding seat which is slidably connected to the cantilever guide rail, a cantilever lifting mechanism and a clamping mechanism, the clamping mechanism is connected to the cantilever sliding seat through the cantilever lifting mechanism, the cantilever lifting mechanism drives the clamping mechanism to move downward to clamp the workpiece.

5. The tube-pulling machine of claim 2, wherein The translation sliding seat comprises a sliding base which is slidably connected to the slide rail and a side feeding guide rail which is parallel to the die closing direction of the movable die, and a side feeding base which is installed on the side feeding guide rail, the die closing fixed column is arranged on the side feeding base; The translation feeding mechanism further comprises a die closing side feeding mechanism for moving the side feeding base to the inside of the fixed die, so that the die closing side feeding mechanism drives the side feeding base to move to the inside of the fixed die after the sliding base moves to the inside of the movable die and the fixed die along the slide rail.

6. The tube-pulling machine according to claim 5, wherein The die closing side feeding mechanism comprises a butt joint for driving the side feeding base and a side feeding telescopic driving mechanism for driving the butt joint, one side of the side feeding base is provided with a T-shaped slot which is suitable for the butt joint, so that the butt joint is arranged in the T-shaped slot after the side feeding base moves to the inside of the movable die and the fixed die along the slide rail.

7. The tube-pulling machine of claim 6, wherein The butt joint comprises a penetrating shaft which has a diameter smaller than the width of the slot of the T-shaped slot and a roller which has a diameter larger than the width of the slot of the T-shaped slot, the roller is installed on the penetrating shaft to form a T-shaped cross section structure.

8. The tube-pulling machine of claim 2, wherein The bottom end of the pressing column is provided with a top pressing slope facing the drawing channel, and the top of the mold fixing column is provided with a drawing guide slot guiding the drawing ball to move to the drawing channel, so that the drawing ball is pressed downward by the top pressing slope and moves into the drawing channel along the drawing guide slot.

9. The tube-pulling machine of claim 8, wherein Further comprising a ball collecting and recycling mechanism for recycling the drawing ball, the ball collecting and recycling mechanism comprising a ball collecting disc and a ball disc lifting driving mechanism for driving the ball collecting disc to lift and drop; The ball collecting disc is located at the outlet side of the drawing channel, and the top of the fixed mold is provided with a ball guide slot for guiding the drawing ball to fall into the tube cavity, and the ball collecting disc receiving the drawing ball is lifted to the ball guide slot by the ball disc lifting driving mechanism, so that the drawing ball reenters the tube cavity along the ball guide slot.

10. The tube-pulling machine according to claim 9, wherein The ball disc lifting driving mechanism is provided with a driving rod for supporting the ball collecting disc, the bottom of the ball collecting disc is provided with a hinged slot for placing the driving rod and providing a hinged space, and one end of the driving rod is hinged in the hinged slot to limit the swing amplitude of the ball collecting disc relative to the driving rod.

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