Pipe cold drawing machine with empty drawing prevention function

Abstract

The utility model discloses a pipe material cold-drawing machine with an empty-drawing prevention function, which comprises a cold-drawing device and a guide device which are correspondingly arranged, the guide device used for being matched with the cold-drawing device is arranged to realize a continuous guide effect when a pipe material is input into a die hole, and the guide device is provided with a guide core rod for sleeving the pipe material. The end, close to the cold-drawing die, of the guide core rod right faces the die hole, so that after one end of a pipe is sleeved with the guide core rod, and when the other end of the pipe is pulled out by the clamping mechanism through the die hole, the part, close to the feeding position of the die hole, of the pipe continuously keeps a sleeving state relative to the guide core rod; the guide core rod is arranged on the guide core rod, so that the guide core rod has a continuous guide effect on the input direction of pipe material feeding, the advancing direction of the pipe material before entering a die hole is always kept stable, the stable clamping of the pipe material by the material clamping mechanism in the cold drawing process is ensured, the risk of empty drawing of the cold drawing machine is greatly reduced, and the production efficiency is improved. And the production efficiency of the equipment is also improved while the equipment is protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal pipe material processing equipment technical field, especially a pipe material cold drawing machine with prevent empty pumping function. BACKGROUND

[0002] In the metal processing industry, pipe material cold drawing as an important processing method is widely used to improve the strength, hardness and precision of pipe material. The cold drawing process usually involves passing the pipe material through one or more die holes with gradually decreasing sizes, and through the action of mechanical force, plastic deformation occurs, so as to achieve the required size and performance requirements. When the current pipe material cold drawing machine cold draws the pipe material, the corresponding mechanical chuck needs to be set to clamp the pipe material protruding from the die hole, and then the pipe material is pulled out of the die hole through the movement of the mechanical chuck, completing the cold drawing process. However, the existing cold drawing machine lacks a structure that can guide the pipe material on the feed side of the die hole, making it difficult to keep the running direction of the pipe material stable before entering the die hole, resulting in incorrect feeding position of the pipe material. When the mechanical chuck clamps the pipe material in the incorrect position and tries to move, the required traction force of the pipe material increases suddenly, and the mechanical chuck has the risk of disengaging from the pipe material, causing empty pumping. This not only causes production interruption, but also may cause damage to the mechanical chuck and the die, seriously affecting production efficiency and equipment life. Therefore, there is an urgent need for a pipe material cold drawing machine with anti-empty pumping function. SUMMARY

[0003] The utility model aims at providing a pipe material cold drawing machine with anti-empty pumping function, solving the problem that the existing cold drawing machine is prone to empty pumping due to unstable pipe material feeding direction.

[0004] The utility model provides technical scheme as follows: a pipe material cold drawing machine with anti-empty pumping function, including corresponding setting cold drawing device and guiding device, the cold drawing device includes cold drawing die, discharge track and clamping mechanism, the cold drawing die is opened with die hole, the clamping mechanism is used for clamping the pipe material output in the die hole, and it is pulled out along the length direction of the discharge track, the guiding device includes guiding support and guiding core rod, the one end of guiding core rod close to the cold drawing die is opposite the die hole, the one end of guiding core rod away from the cold drawing die is connected in guiding support, and the pipe material can be set in guiding core rod through the one end of guiding core rod close to the cold drawing die, so that when the clamping mechanism pulls out the pipe material in the die hole, the guiding core rod is used for continuously guiding the pipe material in the input direction of the die hole.

[0005] The pipe material cold-drawing machine with the air-drawing prevention function as described above, the guiding device further comprises a moving mechanism, the moving mechanism is arranged on the guiding support, and the end of the guiding core rod away from the cold-drawing die is connected to the moving mechanism, the moving mechanism is used for movably arranging the guiding core rod in the axial direction, so that the end of the guiding core rod close to the cold-drawing die can be away from or close to the die hole.

[0006] The pipe material cold-drawing machine with the air-drawing prevention function as described above, the guiding device further comprises a pressing mechanism, the pressing mechanism comprises a pressing rod and a telescopic driver, the output end of the telescopic driver is connected to the pressing rod, and the telescopic driver is used for driving the pressing rod to be close to or away from the end of the guiding core rod away from the cold-drawing die, when the pipe material is sleeved on the guiding core rod, the pressing rod is close to and presses on the guiding core rod, so as to drive the end of the guiding core rod to be close to the die hole.

[0007] The pipe material cold-drawing machine with the air-drawing prevention function as described above, the guiding core rod and the pressing rod are coaxially arranged.

[0008] The pipe material cold-drawing machine with the air-drawing prevention function as described above, the guiding support is provided with an auxiliary bracket arranged along the length direction of the guiding core rod.

[0009] The pipe material cold-drawing machine with the air-drawing prevention function as described above, the moving mechanism comprises a moving rail and a moving block arranged on the guiding support, the moving rail is arranged in the length direction of the guiding support, the moving block is movably arranged on the moving rail in the extension direction of the moving rail, and the end of the guiding core rod away from the cold-drawing die is fixed to the moving block.

[0010] The pipe material cold-drawing machine with the air-drawing prevention function as described above, the guiding support is provided with a first mounting plate and a second mounting plate, the guiding core rod is movably connected to the first mounting plate, the pressing rod is movably connected to the second mounting plate, the telescopic driver is fixed to the second mounting plate, and the moving mechanism is located between the first mounting plate and the second mounting plate.

[0011] The pipe material cold-drawing machine with the air-drawing prevention function as described above, the first mounting plate is provided with a sleeve, and the guiding core rod is movably connected to the sleeve.

[0012] The pipe material cold-drawing machine with the air-drawing prevention function as described above, the two ends of the moving rail are respectively abutted on the first mounting plate and the second mounting plate.

[0013] The pipe material cold-drawing machine with the air-drawing prevention function as described above, the guiding support is provided with a plurality of reinforcing rib plates connected to the first mounting plate and the second mounting plate.

[0014] Compared with the prior art, the pipe material cold-drawing machine has the following advantages:

[0015] The pipe material cold-drawing machine is provided with a guide device matched with the cold-drawing device, and realizes the continuous guiding effect when the pipe material is input into the die hole, wherein the guide device is provided with a guide core rod for sleeving the pipe material, and the end of the guide core rod close to the cold-drawing die is opposite to the die hole, so that when the other end of the pipe material is pulled out by the clamping mechanism through the die hole after the one end of the pipe material is sleeved into the guide core rod, the part of the pipe material close to the die hole keeps the sleeving state of the guide core rod, so that the guide core rod has the continuous guiding effect on the input direction of the pipe material, and the running direction of the pipe material before entering the die hole is always kept stable, the stable clamping of the pipe material by the clamping mechanism in the cold-drawing process is ensured, the risk of the empty drawing phenomenon of the cold-drawing machine is greatly reduced, the equipment is protected, and the production efficiency of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a partial perspective view of the pipe material cold-drawing machine.

[0017] Figure 2 It is Figure 1 It is an enlarged view of A part.

[0018] Figure 3 It is Figure 1 It is an enlarged view of B part.

[0019] The reference signs are explained as follows: 1, cold-drawing device; 2, guide device; 11, cold-drawing die; 12, discharging track; 13, clamping mechanism; 21, guide support; 22, guide core rod; 23, movable mechanism; 24, pressing mechanism; 111, die hole; 210, auxiliary bracket; 211, first mounting plate; 212, second mounting plate; 213, reinforcing rib plate; 231, movable rail; 232, movable block; 241, pressing rod; 242, telescopic driver; 2111, sleeve. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0021] Embodiment 1: Please refer to the drawings in the embodiments of the present application. Figure 1 to the drawings in the embodiments of the present application. Figure 3The embodiment provides a pipe material cold-drawing machine with an air-drawing prevention function, which comprises a cold-drawing device 1 and a guide device 2 arranged correspondingly, the cold-drawing device 1 comprises a cold-drawing die 11, a discharging track 12 and a clamping mechanism 13, the cold-drawing die 11 is provided with a die hole 111, the clamping mechanism 13 is used for clamping the pipe material output from the die hole 111 and pulling it out along the length direction of the discharging track 12, the guide device 2 comprises a guide support 21 and a guide core rod 22, the end of the guide core rod 22 close to the cold-drawing die 11 is opposite to the die hole 111, the end of the guide core rod 22 away from the cold-drawing die 11 is connected to the guide support 21, the pipe material can be sleeved on the guide core rod 22 through the end of the guide core rod 22 close to the cold-drawing die 11, so that when the clamping mechanism 13 pulls the pipe material out of the die hole 111, the guide core rod 22 is used for continuously guiding the pipe material in the input direction of the die hole 111. The pipe material cold-drawing machine of the embodiment is provided with the guide device 2 matched with the cold-drawing device 1, so that the continuous guiding effect of the pipe material input into the die hole 111 is realized, wherein the guide device 2 is provided with the guide core rod 22 sleeved by the pipe material, the end of the guide core rod 22 close to the cold-drawing die 11 is opposite to the die hole 111, so that when the other end of the pipe material is pulled out through the die hole 111 by the clamping mechanism 13 after the one end of the pipe material is sleeved on the guide core rod 22, the part of the pipe material close to the feeding position of the die hole 111 continuously maintains the sleeving state on the guide core rod 22, so that the guide core rod 22 has the continuous guiding effect on the input direction of the pipe material, the advancing direction of the pipe material before entering the die hole 111 is always kept stable, the stable clamping of the pipe material by the clamping mechanism 13 in the cold-drawing process is ensured, the risk of the air-drawing phenomenon of the cold-drawing machine is greatly reduced, the equipment is protected, and the production efficiency of the equipment is improved.

[0022] The guide device 2 further comprises a moving mechanism 23, the moving mechanism 23 is arranged on the guide support 21, the end of the guide core rod 22 away from the cold-drawing die 11 is connected to the moving mechanism 23, and the moving mechanism 23 is used for movably arranging the guide core rod 22 in the axial direction, so that the end of the guide core rod 22 close to the cold-drawing die 11 can be away from or close to the die hole 111. The arrangement of the moving mechanism 23 makes the position of the guide core rod 22 away from the die hole 111 adjustable by the operator before the pipe material is sleeved on the guide core rod 22, so that the interference of the pipe material on the sleeving on the guide core rod 22 is reduced, and the sleeving of the pipe material on the guide core rod 22 is facilitated.

[0023] The guiding device 2 further comprises a pressing mechanism 24, which comprises a pressing rod 241 and a telescopic driver 242. The output end of the telescopic driver 242 is connected to the pressing rod 241, and is used to drive the pressing rod 241 to move close to or away from the guiding core rod 22 and away from one end of the cold-drawing die 11. When the pipe sleeve is sleeved on the guiding core rod 22, the pressing rod 241 is close to and presses against the guiding core rod 22, so as to drive the end of the guiding core rod 22 to move close to the die hole 111. The arrangement of the pressing mechanism 24 can continuously press the guiding core rod 22 by the pressing rod 241 when the pipe sleeve is subjected to the cold-drawing operation, so as to limit the axial movement of the guiding core rod 22 and ensure the cold-drawing effect of the pipe sleeve.

[0024] Preferably, the guiding core rod 22 and the pressing rod 241 are coaxially arranged, so that the pressing rod 241 has the best pressing effect on the guiding core rod 22.

[0025] Preferably, the guiding support 21 is provided with an auxiliary bracket 210 arranged along the length direction of the guiding core rod 22. Since the guiding core rod 22 and the pipe sleeve both have a certain length, the arrangement of the auxiliary bracket 210 can reduce the deformation of the middle part of the guiding core rod 22 and the pipe sleeve, reduce the friction between the guiding core rod 22 and the pipe sleeve, and ensure the cold-drawing effect of the pipe sleeve.

[0026] The movable mechanism 23 comprises a movable rail 231 arranged on the guiding support 21 and a movable block 232 movably arranged on the movable rail 231 along the extension direction of the movable rail 231. The end of the guiding core rod 22 away from the cold-drawing die 11 is fixed to the movable block 232. The arrangement of the movable rail 231 and the movable block 232 can make the axial movement of the guiding core rod 22 more stable.

[0027] The guiding support 21 is provided with a first mounting plate 211 and a second mounting plate 212. The guiding core rod 22 is movably connected to the first mounting plate 211, the pressing rod 241 is movably connected to the second mounting plate 212, the telescopic driver 242 is fixed to the second mounting plate 212, and the movable mechanism 23 is located between the first mounting plate 211 and the second mounting plate 212. The first mounting plate 211 is provided with a sleeve 2111, and the guiding core rod 22 is movably connected to the sleeve 2111. The arrangement of the sleeve 2111 can make the axial movement of the guiding core rod 22 more stable.

[0028] The two ends of the movable rail 231 abut against the first mounting plate 211 and the second mounting plate 212, respectively. Therefore, the first mounting plate 211 and the second mounting plate 212 can limit the sliding stroke of the movable block 232, and further limit the moving stroke of the axial movement of the guiding core rod 22.

[0029] Preferably, the guide bracket 21 is provided with a plurality of reinforcing rib plates 213 respectively connected to the first mounting plate 211 and the second mounting plate 212, which enhances the stability of the first mounting plate 211 and the second mounting plate 212 on the guide bracket 21.

[0030] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cold drawing machine for pipes with anti-dry-extraction function, characterized in that: The cold-drawing device (1) and the guiding device (2) are correspondingly arranged, the cold-drawing device (1) comprises a cold-drawing die (11), a discharging track (12) and a clamping mechanism (13), the cold-drawing die (11) is provided with a die hole (111), the clamping mechanism (13) is used for clamping the pipe material output from the die hole (111) and pulling it out along the length direction of the discharging track (12), the guiding device (2) comprises a guiding support (21) and a guiding core rod (22), one end of the guiding core rod (22) close to the cold-drawing die (11) is opposite to the die hole (111), one end of the guiding core rod (22) away from the cold-drawing die (11) is connected to the guiding support (21), the pipe material can be sleeved on the guiding core rod (22) through one end of the guiding core rod (22) close to the cold-drawing die (11), so that the guiding core rod (22) is used for continuously guiding the pipe material in the input direction of the die hole (111) when the clamping mechanism (13) pulls the pipe material out of the die hole (111).

2. The pipe material cold-drawing machine having an air evacuation prevention function according to claim 1, characterized by: The guiding device (2) further comprises a moving mechanism (23), the moving mechanism (23) is arranged on the guiding support (21), one end of the guiding core rod (22) away from the cold-drawing die (11) is connected to the moving mechanism (23), the moving mechanism (23) is used for axially movably arranging the guiding core rod (22), so that one end of the guiding core rod (22) close to the cold-drawing die (11) can be away from or close to the die hole (111).

3. The pipe material cold-drawing machine having an air evacuation prevention function according to claim 2, characterized in that: The guiding device (2) further comprises a pressing mechanism (24), the pressing mechanism (24) comprises a pressing rod (241) and a telescopic driver (242), the output end of the telescopic driver (242) is connected to the pressing rod (241), and the telescopic driver (242) is used for driving the pressing rod (241) to be close to or away from one end of the guiding core rod (22) away from the cold-drawing die (11), when the pipe material is sleeved on the guiding core rod (22), the pressing rod (241) is close to and presses on the guiding core rod (22), so as to drive the end of the guiding core rod (22) to be close to the die hole (111).

4. The pipe material cold-drawing machine having an air evacuation prevention function according to claim 3, characterized in that: The guiding core rod (22) and the pressing rod (241) are coaxially arranged.

5. The pipe material cold drawing machine having an air suction prevention function according to claim 3, wherein: The guiding support (21) is provided with an auxiliary bracket (210) arranged along the length direction of the guiding core rod (22).

6. The pipe material cold drawing machine having an air suction prevention function according to claim 3, wherein: The moving mechanism (23) comprises a moving rail (231) and a moving block (232) arranged on the guiding support (21), the moving rail (231) is arranged along the length direction of the guiding support (21), the moving block (232) is movably arranged on the moving rail (231) along the extension direction of the moving rail (231), and one end of the guiding core rod (22) away from the cold-drawing die (11) is fixed to the moving block (232).

7. The pipe material cold drawing machine having an air suction prevention function according to claim 6, wherein: The guide support (21) is provided with a first mounting plate (211) and a second mounting plate (212), the guide core rod (22) is movably connected to the first mounting plate (211), the resisting rod (241) is movably connected to the second mounting plate (212), the telescopic driver (242) is fixed to the second mounting plate (212), and the movable mechanism (23) is located between the first mounting plate (211) and the second mounting plate (212).

8. The pipe material cold drawing machine having an air suction prevention function according to claim 7, wherein: The first mounting plate (211) is provided with a sleeve (2111), and the guide core rod (22) is movably connected to the sleeve (2111).

9. The pipe material cold drawing machine having an air suction prevention function according to claim 7, wherein: The two ends of the movable rail (231) are respectively abutted against the first mounting plate (211) and the second mounting plate (212).

10. The pipe material cold drawing machine having an air suction prevention function according to claim 7, wherein: The guide support (21) is provided with a plurality of reinforcing rib plates (213) connected to the first mounting plate (211) and the second mounting plate (212) respectively.

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