Pipe removing device

Abstract

The utility model discloses a tube separating device which is used for separating a rubber tube wrapped on a column mould. Comprising an operation table, a chuck is arranged on the operation table and comprises a set of movable clamping jaws and a chuck body, a pipe removing assembly is clamped between the movable clamping jaws in a surrounding mode, a column mold is inserted into the pipe removing assembly, a rubber pipe forms wrapping edges at the two ends of the column mold, and the upper edge of a removing ring of the pipe removing assembly abuts against the wrapping edges. The downward pressing assembly downwards presses the end, away from the operation table, of the column mold in the vertical direction, and the rubber pipe is separated from the column mold under the action of the disengaging ring. The downward pressing assembly comprises a base, a stand column, a rotatable rotating frame and an air cylinder. A pressing plate at the end of an output shaft of the air cylinder is axially and adjustably connected with the output shaft. The pipe separating assembly further comprises a shaft sleeve, the shaft sleeve is arranged on the chuck body and vertically reciprocates along with the chuck, and the rubber pipe can be clamped between the inner side wall of the shaft sleeve and the outer side wall of the separating ring. The second air cylinder below the operation table drives the chuck to move through the guide column, the inflation inlet in the operation table is inflated at a specific position, and the column mold is upwards ejected out of the rubber pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to rubber tube manufacturing field, concretely relates to a pipe removing device. BACKGROUND

[0002] In industrial production, rubber tubes are widely used, especially in applications involving sealing and protection. These rubber tubes sometimes need to be tightly wrapped around a columnar mold of a specific shape for processing or treatment. However, after completing the relevant processes, how to efficiently and without damaging the rubber tube and the columnar mold, separate the rubber tube from the columnar mold becomes a problem to be solved. Traditional manual operation is not only inefficient, but also easily damages the rubber tube, affecting its subsequent use.

[0003] In the prior art, in order to realize the separation of the rubber tube and the columnar mold, people have adopted various methods. The traditional way is manual operation, workers use simple tools such as pry bars to pry the rubber tube, gradually separating it from the columnar mold. This method mainly relies on human power, through physical external force, using the principle of lever to complete the pipe removal operation. Manual pipe removal is extremely inefficient, not only consumes a lot of manpower and time, but also is difficult to ensure uniform force during the operation process, which may cause damage to the surface of the rubber tube and affect product quality.

[0004] Therefore, the above problems need to be solved. UTILITY MODEL CONTENT

[0005] The utility model aims at overcoming the above shortcomings, and provides a pipe removing device, which realizes accurate axial pressure through the cooperation of the ring and the pressing assembly, and effectively solves the technical problems of traditional manual pipe removal, low pipe removal efficiency, and columnar mold jamming by combining the chuck linkage clamping and the inflation auxiliary demolding structure.

[0006] Technical scheme: The utility model provides a pipe removing device, which comprises an operation table, a chuck provided on the operation table, a set of movable clamping jaws and a chuck body, a set of movable clamping jaws and a chuck body, a pipe removing assembly surrounded by the movable clamping jaws, a columnar mold inserted into the pipe removing assembly, and a rubber tube wrapped around the columnar mold to form a wrapped edge at both ends of the columnar mold. The pipe removing assembly comprises a ring, and the upper edge of the ring is in contact with the wrapped edge. A pressing assembly is provided, which presses the end of the columnar mold away from the operation table in the vertical direction. Under the action of the ring, the rubber tube and the columnar mold are separated. The operation table provides basic support to ensure the stability of the device. The chuck clamps the pipe removing assembly through the movable clamping jaws. The ring in the pipe removing assembly is in contact with the wrapped edge of the rubber tube, forming a pipe removing starting point. The pressing assembly vertically presses the end of the columnar mold, realizing the separation of the rubber tube and the columnar mold.

[0007] Further, the lower pressing assembly of the pipe removing device comprises a base, a vertical column, a rotating frame, and a cylinder. The base is installed on the operation table. The vertical column is installed vertically on the base. The rotating frame is rotationally connected with the vertical column and rotates horizontally around the vertical column. The cylinder is installed on the rotating frame. When the cylinder rotates to the top of the column mold, the cylinder is driven to press down the column mold. The rotating frame rotates around the vertical column to flexibly adjust the position of the cylinder. After the cylinder is accurately positioned, the cylinder is pressed down to ensure that the force direction is vertical.

[0008] Further, the pipe removing device comprises a shaft sleeve. The shaft sleeve is fixed on the operation table and is sleeved in the chuck body. The shaft sleeve has a hollow inner cavity. The inner cavity is in the shape of a cylindrical through hole. The axial cross-sectional profile has a gradually changing inclination angle. The upper end circular ring has a smaller diameter than the lower end circular ring. The shaft sleeve is surrounded and clamped by a group of movable clamping jaws on the chuck body. When the lower pressing assembly presses down the column mold and the rubber tube is separated from the column mold, the chuck is triggered to move downward. At this time, the rubber tube is clamped between the inner side wall of the shaft sleeve and the outer side wall of the ring. The upper end of the inner cavity of the ring has a smaller diameter than the lower end (the axial cross-section is in the shape of an inverted circular truncated cone). When the column mold moves downward with the lower pressing assembly, the rubber tube wrapping edge first contacts the upper edge of the ring. As the column mold continues to be pressed down, the rubber tube is gradually stretched by the inclined inner wall of the ring, forming a uniform radial expansion force. The inclined inner cavity causes the contact area between the rubber tube and the ring to gradually transition from the upper small-diameter end to the lower large-diameter end during the separation process, avoiding local tearing caused by single-point force. Meanwhile, the tapered surface guides the rubber tube to naturally separate from the surface of the column mold, reducing frictional resistance. The shaft sleeve is surrounded and clamped by the movable clamping jaws and is fixed on the chuck body. When the chuck does not move downward, the shaft sleeve is located above the ring, leaving a gap with the outer side wall of the ring, which does not affect the insertion and initial fixation of the column mold. After the column mold is pressed down to the point where the rubber tube is preliminarily separated from the column mold, the chuck moves downward. The inner side wall of the shaft sleeve and the outer side wall of the ring form a clamping space, clamping the rubber tube that has been separated from the column mold (the rubber tube is sleeved outside the ring at this time), preventing the rubber tube from being offset or falling off due to gravity or elastic retraction when the column mold is completely pulled out later.

[0009] Further, the pipe removing device comprises a second cylinder below the operation table. The second cylinder is connected with the chuck body through a group of guide columns. The guide columns are arranged in the operation table. The second cylinder drives the chuck to reciprocally move vertically through the guide columns.

[0010] Further, the rubber tube separating device in the application, the operating table is provided with an inflation port, the inflation port is arranged directly below the column mold, when the lower pressing assembly presses the column mold in the vertical direction and the second air cylinder drives the chuck to move to the operating table, a sealed space is formed among the operating table, the ring separating device and the column mold, at this time, the inflation port inflates from bottom to top to push the column mold upward out of the rubber tube. After the rubber tube and the column mold are preliminarily separated, the rotating frame is rotated, so that the air cylinder is away from directly above the column mold, and the column mold is continuously pushed by the air pressure.

[0011] Further, the rubber tube separating device in the application, the output shaft end of the air cylinder is provided with a pressing plate, and the pressing plate is adjustably connected with the output shaft in the axial direction. The pressing plate is axially adjustable, is suitable for column molds with different lengths, and the pressing plate position is adjusted to control the lower pressing force point.

[0012] Further, the rubber tube separating device in the application, the shaft sleeve body is in a cylindrical structure and has a hollow inner cavity, the lower end of the hollow inner cavity is provided with a flange, the movable clamping jaw is provided with a notch, and the notch is matched with the flange to limit the shaft sleeve in the vertical direction.

[0013] Further, the rubber tube separating device in the application, the rotating frame is provided with a handle, and the handle is provided with a starting button, when the rotating frame is rotated by holding the handle and the air cylinder is located directly above the column mold, the starting button is pressed to trigger the air cylinder to press downward and the inflation port to inflate. The handle is integrated with the starting button, and the lower pressing and inflation can be triggered by one-hand operation.

[0014] The above technical scheme can achieve the following beneficial effects.

[0015] 1. The rubber tube separating device accurately abuts the rubber tube wrapping edge on the upper edge of the ring separating device and cooperates with the axial pressure of the lower pressing assembly on the column mold, so that the rubber tube is uniformly peeled off along the axial direction of the column mold under the limiting support of the ring separating device, the rubber tube is prevented from being torn or deformed due to manual peeling, and the rubber tube separating quality and efficiency are significantly improved. DRAWINGS

[0016] Figure 1 It is a structural schematic view of the rubber tube separating device.

[0017] Figure 2 It is a structural schematic view of the rubber tube separating device. Figure 1 It is an enlarged schematic view of the A area.

[0018] Figure 3 It is an enlarged schematic view of the B area. Figure 1

[0019] It is a structural schematic view of the chuck in the rubber tube separating device. Figure 4

[0020] Figure 5 ​This is a schematic diagram of the ring-removing structure and cross-section in a tube-removing device of this utility model;

[0021] Figure 6 This is a schematic diagram of the rubber tube and the column mold.

[0022] Explanation of reference numerals on the accompanying drawings:

[0023] 1-Rubber tube, 11-Wrapped edge;

[0024] 2-Column mold;

[0025] 3-Control panel, air inlet-31;

[0026] 4-Chuck, 41-Modible jaw, 411-Notch, 42-Chuck body;

[0027] 5-Disconnecting tube assembly, 51-Disconnecting ring, 511-Upper edge, 52-Sleeve, 521-Hollow inner cavity, 522-Flange;

[0028] 6-Pressing component, 61-Base, 62-Column, 63-Rotating frame, 631-Handle, 632-Start button, 64-Cylinder, 641-Pressure plate;

[0029] 7 - Second cylinder;

[0030] 8-Guide post. Detailed Implementation

[0031] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0032] Example 1

[0033] Structure and assembly of the tube removal device

[0034] like Figure 1 As shown, a tube-removing device includes an operating table 3, with a chuck 4 fixedly mounted in the center of the upper surface of the operating table 3. The chuck 4 consists of a set of movable jaws 41 and a chuck body 42, as shown... Figure 4 As shown, three movable jaws 41 are evenly distributed circumferentially above the chuck body 42, and their inner sides enclose the tube release assembly 5. The tube release assembly 5 includes a release ring 51 and a bushing 52: the release ring 51 is a hollow cylindrical body in the shape of an inverted frustum cone, as shown in the figure. Figure 5 As shown, its lower end is fixed to the operating table 3, the inner cavity is a cylindrical through hole, and the axial cross-sectional profile has a gradually changing inclination angle (the diameter of the upper ring is smaller than the diameter of the lower ring). The upper edge 511 is horizontal and sharp, used to abut against the wrapping edge 11 of the rubber tube 1; the bushing 52 has a cylindrical structure, as shown in the figure. Figure 3As shown, the lower outer side of the shaft sleeve 52 is provided with a flange 522, and the inner side of the movable clamping jaw 41 is provided with a notch 411 matched with the flange 522. The shaft sleeve 52 is limited above the chuck body 42 by the cooperation of the flange 522 and the notch 411, and can move vertically with the chuck body 42.

[0035] The pressing assembly 6 is installed on one side of the operation table 3, as shown in Figure 2 As shown, it includes a base 61, a stand column 62, a rotating frame 63 and a pneumatic cylinder 64: the base 61 is fixed on the edge of the operation table 3, the stand column 62 is vertically welded on the base 61, the rotating frame 63 is sleeved on the top end of the stand column 62 through a bearing, and can rotate horizontally around the stand column 62; the pneumatic cylinder 64 is fixed horizontally on the rotating frame 63, and the output shaft end thereof is connected with a pressing plate 641 through screw threads, and the pressing plate 641 can be adjusted in position along the output shaft in the axial direction. A second pneumatic cylinder 7 is arranged below the operation table 3, as shown in Figure 1 As shown, the piston rod of the second pneumatic cylinder 7 is connected with a group of guide columns 8 through bolts, the guide columns 8 vertically penetrate the operation table 3 and are fixed with the chuck body 42, and the chuck body 42 is driven to move reciprocatingly in the vertical direction. An inflation port 31 is formed in the middle of the operation table 3 corresponding to the lower side of the column die 2, and the inflation port 31 is connected with an external air source through an air pipe.

[0036] Working process of the pipe stripping device

[0037] Clamping preparation: the column die 2 wrapped with the rubber pipe 1 is vertically inserted into the shaft sleeve 52, and the wrapped edges 11 at both ends of the rubber pipe 1 naturally fall to the upper edge 511 of the stripping ring 51, at this time, the upper edge 511 of the stripping ring 51 touches the wrapped edges 11, forming a starting fulcrum for pipe stripping.

[0038] Pressing separation: hold the handle 631 on the rotating frame 63, as shown in FIG. 2, rotate the rotating frame 63 until the pneumatic cylinder 64 is located directly above the column die 2, press the start button 632 on the handle 631, the output shaft of the pneumatic cylinder 64 extends downward, and the pressing plate 641 contacts the top end of the column die 2 and applies vertical downward pressure. When the column die 2 moves downward with the pressing plate 641, the inclined inner cavity (the upper end has a small diameter and the lower end has a large diameter) of the stripping ring 51 forces the inner wall of the rubber pipe 1 to gradually expand, and the wrapped edges 11 are separated from the column die 2 under the limiting action of the upper edge 511 of the stripping ring 51, and the rubber pipe 1 is uniformly peeled off along the column die 2 in the axial direction.

[0039] Chuck linkage clamping: when the column die 2 is pressed down and most of the rubber pipe 1 is separated, the second pneumatic cylinder 7 is started, and the chuck body 42 is driven to move downward through the guide columns 8, as shown in FIG. 3. During the downward movement of the shaft sleeve 52 along with the chuck body 42, the inner side wall of the shaft sleeve 52 and the outer side wall of the stripping ring 51 form an annular clamping space, which clamps the rubber pipe 1 that has been separated from the column die 2, preventing it from falling off due to elastic shrinkage or gravity.

[0040] Inflation assisted demolding: when the chuck 4 moves down to the surface of the operation table 3, the operation table 3, the demolding ring 51 and the bottom end of the column mold 2 form a sealed space, the rotating frame 63 moves away from the air cylinder 64, at this time the inflation port 31 inflates into the sealed space, the air pressure pushes the column mold 2 from bottom to top, so that the column mold 2 is completely separated from the rubber tube 1, and after the top end of the column mold 2 is separated from the pressing plate 641, the inflation is stopped.

[0041] Embodiment description

[0042] In this embodiment, the upper edge 511 of the demolding ring 51 cooperates with the lower pressing assembly 6 to achieve uniform peeling of the rubber tube 1 along the axial direction of the column mold 2; the limiting structure of the shaft sleeve 52 and the movable clamping jaw 41 ensures stable clamping of the rubber tube 1 during the demolding process; the inflation port 31 is provided to avoid frictional jamming of the column mold 2 and improve the demolding efficiency. The cooperation relationship of each component is shown in FIGS. 1-6, the reference signs clearly correspond to the structure of the device, and the working principle and operation process of the demolding device are completely presented.

[0043] The above embodiments are exemplary, and the purpose is to illustrate the technical concept and characteristics of the utility model, so that personnel familiar with this field can understand the content of the utility model and implement it accordingly, and the protection scope of the utility model cannot be limited thereby. Any equivalent changes or modifications made according to the spirit and essence of the utility model should be covered within the protection scope of the utility model.

Claims

1. A pipe removing device for removing a rubber pipe (1) from a columnar mold (2), wherein the rubber pipe (1) is wrapped around the columnar mold (2), and characterized in that: an operation table (3) is provided with a chuck (4), the chuck (4) comprises a set of movable clamping jaws (41) and a chuck body (42), a pipe removing assembly (5) is clamped between the set of movable clamping jaws (41), the columnar mold (2) is inserted into the pipe removing assembly (5), and the rubber pipe (1) is wrapped around the columnar mold (2) to form wrapping edges (11) at both ends of the columnar mold (2), the pipe removing assembly (5) comprises a removing ring (51), and the upper edge (511) of the removing ring (51) abuts against the wrapping edges (11); and a pressing assembly (6) vertically presses the end of the columnar mold (2) away from the operation table (3), and the rubber pipe (1) is separated from the columnar mold (2) under the action of the removing ring (51).

2. The pipe removing device according to claim 1, characterized in that: the pressing assembly (6) comprises a base (61), a vertical column (62), a rotating frame (63), and a pneumatic cylinder (64), the base (61) is installed on the operation table (3), the vertical column (62) is vertically installed on the base (61), the rotating frame (63) is rotationally connected with the vertical column (62) and rotates horizontally around the vertical column (62) as the shaft, the pneumatic cylinder (64) is installed on the rotating frame (63), and the pneumatic cylinder (64) drives the rotating frame (63) to press the columnar mold (2) when the pneumatic cylinder (64) is rotated to be directly above the columnar mold (2).

3. The pipe removing device according to claim 2, characterized in that: the pipe removing assembly (5) further comprises a shaft sleeve (52), the removing ring (51) is fixed on the operation table (3) and is sleeved in the chuck body (42), the removing ring (51) has a hollow inner cavity, the shape of the inner cavity is a cylindrical through hole, the axial cross-sectional profile has a gradually changing inclined angle, the upper end circular ring has a smaller diameter than the lower end circular ring, the shaft sleeve (52) is arranged on the chuck body (42) and is clamped by the set of movable clamping jaws (41), and the shaft sleeve (52) moves up and down along the vertical direction with the chuck (4), the chuck (4) is triggered to move downward when the pressing assembly (6) presses the columnar mold (2) and the rubber pipe (1) is separated from the columnar mold (2), and at this time, the rubber pipe (1) is clamped between the inner side wall of the shaft sleeve (52) and the outer side wall of the removing ring (51).

4. The pipe removing device according to claim 3, characterized in that: a second pneumatic cylinder (7) is arranged below the operation table (3), the second pneumatic cylinder (7) is connected with the chuck body (42) through a set of guide columns (8), the guide columns (8) are arranged in the operation table (3), and the second pneumatic cylinder (7) drives the chuck (4) to move up and down along the vertical direction through the guide columns (8).

5. The pipe removing device according to claim 4, characterized in that: ​ ​ ​ ​ ​ ​ ​ The operating platform (3) is provided with an inflation port (31), which is arranged directly below the column die (2). When the pressing assembly (6) presses the column die (2) in the vertical direction and the second air cylinder (7) drives the chuck (4) to move to the operating platform (3), a sealed space is formed among the operating platform (3), the ring (51) and the column die (2). At this time, the inflation port (31) inflates from bottom to top to push the column die (2) upward out of the rubber tube (1).

6. The pipe removing device according to claim 2, characterized in that: The output shaft end of the air cylinder (64) is provided with a pressing plate (641), and the pressing plate (641) is adjustably connected with the output shaft in the axial direction.

7. The pipe removing device according to claim 3, characterized in that: The shaft sleeve (52) has a hollow inner cavity (521) and a flange (522) arranged at the lower end of the hollow inner cavity (521). The movable clamping jaw (41) is provided with a notch (411) which is adapted to the flange (522) and limits the shaft sleeve (52) in the vertical direction.

8. The pipe removing device according to claim 2, characterized in that: The rotating frame (63) is provided with a handle (631), and the handle (631) is provided with a starting button (632). When the rotating frame (63) is rotated by holding the handle (631) and the air cylinder (64) is located directly above the column die (2), the starting button (632) is pressed to trigger the air cylinder (64) to press downward and the inflation port (31) to inflate.

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