CN220331858U - Arc core pulling device for bent pipe of die - Google Patents

Abstract

The utility model discloses an arc core pulling device for a mould bent pipe, which comprises a slideway and a driving mechanism, wherein the slideway is positioned on one side of the bent pipe and is provided with a sliding block, and the sliding block is connected with a core body in the bent pipe; the bottom surface of the slideway is also provided with a circular arc-shaped guide groove; the driving mechanism comprises a driving motor, a roller and a cable, wherein the output end of the driving motor is connected with the roller, one end of the cable is wound on the roller, and the other end of the cable is arranged in the guide groove and connected with the sliding block. The sliding block is pulled by the cable, and the cable contracts along the guide groove, so that the force born by the sliding block is always along the tangential direction of the arc of the slideway, the sliding block is always subjected to forward force, the stress is even, the core body is pulled smoothly, and the inner wall of the bent pipe is not easy to be blocked or damaged and the core body is not easy to be worn; the acting force on the slide way is reduced, the deviation of the motion track of the whole slide block is avoided, the service life is prolonged, and the cost is reduced.

Description

Arc core pulling device for bent pipe of die

Technical Field

The utility model belongs to the technical field of dies, and particularly relates to an arc core pulling device for a die bent pipe.

Background

The bent pipe belongs to an inner cavity hollow structure, an arc-shaped core body is usually arranged in the process of molding by using a die, the die is used for closing the die, the bent pipe is molded, and the core body needs to be taken out after the die is opened.

In the prior art, a core pulling device is generally arranged, namely, a sliding block is connected with a core body, an arc-shaped slideway is arranged, the sliding block is pulled by an oil cylinder to slide on the slideway, so that the core body is pulled out, the acting force direction of the oil cylinder is along a straight line because the inner cavity of the bent pipe is arc-shaped, when the sliding block is pulled, the component force of the acting force in the tangential direction along the arc line is negligibly small, the core body is not pulled smoothly, and the inner wall of the bent pipe is easy to be blocked or damaged and the core body is easy to be worn; meanwhile, acting force can be applied to the slideway, so that the whole movement track of the sliding block is deviated, the bent pipe is easy to wear, defective products are caused, the core is damaged, the service life is prolonged, and the cost is increased.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provides the arc core pulling device for the bent pipe of the die. According to the utility model, the sliding block is pulled by the cable, and the cable is contracted along the guide groove, so that the force born by the sliding block is always along the tangential direction of the arc of the slideway, the sliding block is always subjected to forward force, the stress is even, the core body is pulled smoothly, and the inner wall of the bent pipe is not easy to be blocked or damaged and the core body is not easy to be worn; the effects of no deviation, service life improvement and cost reduction are achieved.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the arc core pulling device for the mould bent pipe comprises a slideway and a driving mechanism, wherein the slideway is positioned on one side of the bent pipe and is arc-shaped, a sliding block is arranged on the slideway, and the sliding block is connected with a core body in the bent pipe; the bottom surface of the slideway is also provided with a circular arc-shaped guide groove; the driving mechanism comprises a driving motor, a roller and a cable, wherein the output end of the driving motor is connected with the roller, one end of the cable is wound on the roller, and the other end of the cable is arranged in the guide groove and connected with the sliding block.

Preferably, the circular arc-shaped guide groove is provided with a plurality of guide wheels on one side close to the circle center, and the cable is positioned on the guide wheels.

Preferably, the sliding block is connected with the core body through a connecting rod, and two ends of the connecting rod are respectively connected with the sliding block and the core body in a rotating way.

Preferably, a limiting mechanism is arranged on one side, close to the bent pipe, of the slideway, and the limiting mechanism comprises a limiting groove, and a limiting block and a limiting spring which are positioned in the limiting groove; the limiting groove is perpendicular to the slide way, and the limiting block and the limiting spring are arranged in the limiting groove front and back.

Preferably, the slide is equipped with buffer gear in the side that keeps away from the return bend, buffer gear includes the buffer spring that sets up along the slide direction, buffer spring one side is equipped with the buffer block.

Preferably, the cushion block is provided with a soft cushion.

Compared with the prior art, the utility model has the advantages and positive effects that:

(1) The sliding block is pulled by the cable, and the cable contracts along the guide groove, so that the force born by the sliding block is always along the tangential direction of the arc of the slideway, the sliding block is always subjected to forward force, the stress is even, the core body is pulled smoothly, and the inner wall of the bent pipe is not easy to be blocked or damaged and the core body is not easy to be worn; the acting force on the slide way is reduced, the deviation of the motion track of the whole slide block is avoided, the service life is prolonged, and the cost is reduced.

(2) The arc-shaped guide groove is provided with a plurality of guide wheels on one side close to the circle center, and the cable is positioned on the guide wheels, so that friction between the cable and the inner wall of the guide groove is reduced, and the service life and effect are improved.

(3) The connecting rod is used for connecting the sliding block and the core body, so that force is transmitted from the sliding block to the core body, and the core body is pulled out.

(4) The slide way is provided with a buffer mechanism at one side far away from the bent pipe, after the cable pulls the slide block to pull out the core body, the slide block drives the core body to continuously move forwards under the action of inertia, and the force is absorbed by the buffer spring.

(5) The cushion block is provided with a cushion, so that the cushioning effect is further improved.

(6) The slide is equipped with stop gear in the side that is close to the return bend, and the stopper supports on the core, waits that the core draws in the return bend completely, under limit spring's effect, pops out from the spacing groove, blocks the core and avoids by buffer gear to rebound.

Drawings

FIG. 1 is a top view of the present utility model;

FIG. 2 is a perspective view of the present utility model;

FIG. 3 is a cross-sectional view of the cushioning mechanism;

fig. 4 is a cross-sectional view of the limiting mechanism.

Reference numerals illustrate:

1-bending a pipe;

2-core;

3-slide way, 31-slide block, 32-guide groove and 33-guide wheel;

4-driving mechanism, 41-driving motor, 42-roller and 43-cable;

5-connecting rods;

6-limiting mechanisms, 61-limiting blocks, 62-limiting grooves and 63-limiting springs;

7-buffer mechanism, 71-buffer block, 72-buffer spring.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

Examples

The arc core pulling device of the mould bent pipe in the embodiment is described below with reference to fig. 1-4, and as shown in fig. 1 and 2, the arc core pulling device comprises a slideway 3 and a driving mechanism 4, wherein the slideway 3 is positioned on one side of the bent pipe 1, a sliding block 31 is arranged on the slideway 3, and the sliding block 31 is connected with a core body 2 in the bent pipe 1; the bottom surface of the slideway 3 is also provided with a circular arc-shaped guide groove 32; the slide 31 slides on the slide 3 to withdraw the core 2.

As shown in fig. 1 and 2, the driving mechanism 4 includes a driving motor 41, a roller 42, and a cable 43, an output end of the driving motor 41 is connected to the roller 42, one end of the cable 43 is wound around the roller 42, and the other end is disposed along the guide groove 32 and connected to the slider 31. The sliding block 31 is pulled by the cable 43, and the cable is contracted along the guide groove 32, so that the force born by the sliding block 31 is always along the tangential direction of the arc of the slideway 3, the sliding block 31 is always stressed forwards, the stress is even, the core body 2 is pulled smoothly, and the inner wall of the bent pipe and the worn core body are not easy to be blocked or damaged; the acting force on the slide way is reduced, the deviation of the motion track of the whole slide block 31 is avoided, the service life is prolonged, and the cost is reduced.

As shown in fig. 1 and 2, the circular arc-shaped guide groove 32 is provided with a plurality of guide wheels 33 on one side close to the center of the circle, and the cable 43 is positioned on the guide wheels 33, so that friction between the cable 43 and the inner wall of the guide groove 32 is reduced, and the service life and effect are improved.

As shown in fig. 1 and 2, the slider 31 is connected with the core 2 through a connecting rod 5, and two ends of the connecting rod 5 are respectively connected with the slider 31 and the core 2 in a rotating manner. The slider 31 and the core 2 are connected by the connecting rod 5, and a force is transmitted from the slider 31 to the core 2, pulling out the core 2.

As shown in fig. 3, the slide 3 is provided with a buffer mechanism 7 on a side away from the elbow pipe 1, the buffer mechanism 7 includes a buffer spring 72 arranged along the direction of the slide 3, and a buffer block 71 is provided on one side of the buffer spring 72. After the cable 43 pulls the slider 31 to pull out the core 2, the slider 31 continues to move forward with the core 2 under the action of inertia, and hits the buffer block 71, and the force is absorbed by the buffer spring 72.

The cushion block 71 is provided with a cushion, and further improves the cushioning effect.

As shown in fig. 4, a limiting mechanism 6 is arranged on one side of the slideway 3, which is close to the elbow pipe 1, and the limiting mechanism 6 comprises a limiting groove 62, a limiting block 61 and a limiting spring 63 which are positioned in the limiting groove 62; the limiting groove 62 is arranged vertically to the slideway 3, and the limiting block 61 and the limiting spring 63 are arranged in the limiting groove 62 front and back.

The limiting block 61 is propped against the core body 2, and when the core body 2 is completely pulled out from the bent pipe 1, the limiting block is ejected out of the limiting groove 62 under the action of the limiting spring 63, so that the core body 2 is blocked from being rebounded by the buffer mechanism 7.

In the description of the present utility model, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "vertical", "horizontal", etc. refer to the orientation or positional relationship based on that shown in the drawings, and are merely for the purpose of describing the present utility model and do not require that the present utility model must be constructed or operated in a specific orientation, and thus should not be construed as limiting the present utility model. "connected" and "connected" in the present utility model are to be understood broadly, and may be, for example, connected or detachably connected; the connection may be direct or indirect through intermediate members, and the specific meaning of the terms may be understood in detail by those skilled in the art.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification and equivalent changes to the above-mentioned embodiments according to the technical substance of the present utility model are still within the protection scope of the technical solution of the present utility model.

Claims (6)

1. The arc core pulling device for the bent pipe of the die comprises a slideway (3) which is arranged on one side of the bent pipe (1) and is arc-shaped, wherein a sliding block (31) is arranged on the slideway (3), and the sliding block (31) is connected with a core body (2) in the bent pipe (1); the device is characterized by further comprising a driving mechanism (4), wherein the bottom surface of the slideway (3) is also provided with a circular arc-shaped guide groove (32);

the driving mechanism (4) comprises a driving motor (41), a roller (42) and a cable (43), wherein the output end of the driving motor (41) is connected with the roller (42), one end of the cable (43) is wound on the roller (42), and the other end of the cable is arranged in the guide groove (32) and connected with the sliding block (31).

2. A mould bent pipe arc core pulling device according to claim 1, wherein the circular arc-shaped guide groove (32) is provided with a plurality of guide wheels (33) on one side close to the circle center, and the cable (43) is positioned on the guide wheels (33).

3. The arc core pulling device for the bent pipe of the die according to claim 1, wherein the sliding block (31) is connected with the core body (2) through the connecting rod (5), and two ends of the connecting rod (5) are respectively connected with the sliding block (31) and the core body (2) in a rotating mode.

4. The arc core pulling device for the bent pipe of the die according to claim 1, wherein a limiting mechanism (6) is arranged on one side, close to the bent pipe (1), of the slideway (3), and the limiting mechanism (6) comprises a limiting groove (62), and a limiting block (61) and a limiting spring (63) which are positioned in the limiting groove (62);

the limiting groove (62) is arranged perpendicular to the slideway (3), and the limiting block (61) and the limiting spring (63) are arranged in the limiting groove (62) front and back.

5. The die elbow arc core pulling device according to claim 1, wherein the slide way (3) is provided with a buffer mechanism (7) at one side far away from the elbow (1), the buffer mechanism (7) comprises a buffer spring (72) arranged along the direction of the slide way (3), and a buffer block (71) is arranged at one side of the buffer spring (72).

6. The die elbow arc core pulling device according to claim 5, wherein a soft cushion is arranged on the buffer block (71).