CN219294716U - Flanging mechanism of polytetrafluoroethylene tube - Google Patents

Abstract

The utility model relates to a flanging mechanism of a polytetrafluoroethylene tube, belonging to the technical field of tube flanging; the device comprises a base, wherein a guide rail is arranged on the upper end face of the base, a fixed module is arranged on the upper end face of the base at one end of the guide rail, a sliding block is connected to the guide rail in a sliding manner, and a sliding module is fixedly arranged at the upper end of the sliding block; the fixing module comprises a fixing frame, the fixing frame is fixedly arranged on the upper end surface of the base, a lower clamping plate and an upper clamping plate are inserted into the fixing frame, and a corresponding semicircular groove is formed in the butt joint end surface of the lower clamping plate and the upper clamping plate; the sliding module comprises a sliding seat, the sliding seat is fixed at the upper end of the sliding block, a mounting hole is formed in the sliding seat, the mounting hole corresponds to a semicircular groove between the upper clamping plate and the lower clamping plate, a bushing is screwed at one end, close to the fixed module, of the mounting hole, a push rod is arranged in the bushing, and a thimble is fixedly arranged at the center of one end, facing the fixed module, of the push rod; solves the problems of complex flanging operation and complex structure of the prior polytetrafluoroethylene pipe.

Description

Flanging mechanism of polytetrafluoroethylene tube

Technical Field

The utility model belongs to the technical field of pipe flanging, and particularly relates to a flanging mechanism of a polytetrafluoroethylene pipe.

Background

The chemical raw materials are various, the corrosiveness is complex, the stainless steel material can not meet the requirements of the chemical field, and the materials such as Polytetrafluoroethylene (PTFE), polyethylene (PE) and the like have good corrosion resistance and wide application range. But polytetrafluoroethylene tubes cannot be connected when being singly used, the stainless steel adapter can well solve the problems of strength and corrosion resistance, the local flanging technology of polytetrafluoroethylene tubes is needed, and particularly, the flanging of a sealing surface in the manufacturing process is a key procedure.

The polytetrafluoroethylene pipe needs to be heated to be softened, and the polytetrafluoroethylene is in a high-viscosity state when being melted, and the polytetrafluoroethylene has almost no fluidity when reaching a melting point, so that the flanging of the polytetrafluoroethylene pipe is more difficult than the flanging of a common plastic pipe. At present, the flanging molding process of polytetrafluoroethylene pipes adopts a special plastic pipe flanging machine, the plastic pipe flanging machine consists of a heating mechanism and a flanging mechanism, the equipment cost investment is large, the structure is complex, the operation is complex, meanwhile, the operation is performed in a high-temperature state, various parts are easy to damage, the maintenance cost is large, the service life is short, and the production aims of simplicity and high efficiency cannot be achieved.

In addition, some enterprises adopt a simple flanging process, a flanging die is heated to a certain temperature, then the die is pressed on a plastic pipe to be heated and softened and then extended, and then the plastic pipe is compressed, cooled and shaped by a shaping die. In the process, two kinds of moulds, namely a flanging mould and a shaping mould, are needed to be used in sequence, the two kinds of moulds are always difficult to switch, and a mode of manually replacing the moulds is mainly adopted at present, but the flanging mould is in a high-temperature state in the use process, so that inconvenience is caused by manual replacement.

Disclosure of Invention

The utility model overcomes the defects of the prior art and provides a flanging mechanism of a polytetrafluoroethylene tube; solves the problems of complex flanging operation and complex structure of the prior polytetrafluoroethylene pipe.

In order to achieve the above purpose, the present utility model is realized by the following technical scheme.

A flanging mechanism of a polytetrafluoroethylene tube comprises a base, wherein a guide rail is arranged on the upper end face of the base along the length direction of the guide rail, a fixed module is arranged on the upper end face of the base at one end of the guide rail, a sliding block is connected onto the guide rail in a sliding manner, and a sliding module is fixedly arranged at the upper end of the sliding block; the fixing module comprises a fixing frame, the fixing frame is fixedly arranged on the upper end surface of the base, a lower clamping plate and an upper clamping plate are inserted into the fixing frame, and a corresponding semicircular groove is formed in the butt joint end surface of the lower clamping plate and the upper clamping plate; the sliding module comprises a sliding seat, the sliding seat is fixed at the upper end of the sliding block, a mounting hole is formed in the sliding seat, the mounting hole corresponds to a semicircular groove between the upper clamping plate and the lower clamping plate, a bushing is screwed at one end, close to the fixed module, of the mounting hole, a push rod is arranged in the bushing, and a thimble is fixedly arranged at the center of one end, facing the fixed module, of the push rod.

Further, the fixing frame is of a cube structure, a square inserting groove is formed in the upper end face of the fixing frame, a square passing groove is formed in the side wall of one side of the inserting groove, which faces the sliding module, the square passing groove is flush with the bottom face of the clamping groove, and the width of the square passing groove is smaller than that of the inserting groove; the side wall of one side of the plugging groove far away from the sliding module is provided with two U-shaped grooves with upward openings.

Further, the lower clamping plate and the upper clamping plate are inserted into the insertion groove of the fixing frame, the cross sections of the upper clamping plate and the lower clamping plate are the same, and the lower clamping plate and the upper clamping plate are of a convex structure and are inserted into the insertion groove and the square through groove respectively.

Further, a lower butt joint groove is respectively arranged at two ends of the upper end face of the lower clamping plate, an upper butt joint groove is respectively arranged at two ends of the lower end face of the upper clamping plate, the upper butt joint groove corresponds to the lower butt joint groove, and a vertical locating pin is inserted in the upper butt joint groove and the lower butt joint groove.

Further, two threaded holes are formed in the side face, away from the sliding module, of the lower clamping plate, the two threaded holes are respectively and correspondingly formed in the two U-shaped grooves in the fixing frame, and the two fastening screws respectively penetrate through the U-shaped grooves in the fixing frame and are in threaded connection with the threaded holes in the lower clamping plate.

Further, a lower spring groove is formed in the center of the upper end face of the upper clamping plate, an upper spring groove is formed in the center of the lower end face of the upper clamping plate, and a first spring is arranged in the lower spring groove, the upper spring groove and the upper spring groove; a threaded hole is formed in the center of the bottom surface of the lower spring groove, a vertical through hole is formed in the center of the top surface of the upper spring groove, and a locking screw downwards penetrates through the through hole in the top surface of the upper spring groove and the threaded hole in the bottom surface of the lower spring groove after penetrating through the first spring.

Further, the mounting hole is in threaded connection with an adjusting sleeve at an opening at one side far away from the fixed module, and a through hole is formed in the axis of the adjusting sleeve.

Further, one end of the ejector rod far away from the fixed module is fixedly connected with one end of the pressing rod close to the fixed module, one end of the pressing rod far away from the fixed module penetrates through the adjusting sleeve and then stretches out of the sliding seat, and a knob is fixedly arranged at the end part of the stretching end of the pressing rod.

Further, an annular bulge is fixedly arranged in the middle of the outer side surface of the compression bar and is contacted with the end surface of one side of the adjusting sleeve, which is close to the fixed module; and the two ends of the second spring are respectively contacted with the annular bulge and the bushing at the outer side of the pressing rod.

Furthermore, the upper end face of the sliding block is connected with a horizontal fixing plate through a screw in a threaded manner, the upper end of the fixing plate is provided with the sliding seat, and the sliding seat is connected with the fixing plate through a screw in a threaded manner.

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

the flanging mechanism provided by the utility model has the advantages of integrated equipment, low cost investment, simple structure, convenience in operation, low maintenance cost and long service life, and can achieve the purposes of simple and efficient production.

Drawings

The utility model is described in further detail below with reference to the accompanying drawings:

FIG. 1 is a schematic perspective view of the whole of the present utility model;

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

FIG. 3 is a top view of the entirety of the present utility model;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is a cross-sectional view B-B in FIG. 3;

wherein, the liquid crystal display device comprises a liquid crystal display device, 1 is a base, 2 is a fixed mount, 3 is a guide rail, 4 is a slide block, 5 is a slide seat, 6 is a fixed plate, 7 is a splicing groove, 8 is a U-shaped groove, 9 is a lower clamping plate, 10 is an upper clamping plate, 11 is a positioning pin, 12 is a first spring, 13 is a locking screw, 14 is a fastening screw, 15 is a semicircular groove, 16 is a mounting hole, 17 is a bushing, 18 is a push rod, 19 is a thimble, 20 is a compression rod, 21 is an adjusting sleeve, 22 is a knob, and 23 is a second spring.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail by combining the embodiments and the drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. The following describes the technical scheme of the present utility model in detail with reference to examples and drawings, but the scope of protection is not limited thereto.

As shown in fig. 1 to 5, the utility model provides a flanging mechanism of a polytetrafluoroethylene tube, which comprises a base 1, a fixed module, a sliding module, a guide rail 3 and a sliding block 4.

The base 1 is of a square plate-shaped structure which is horizontally arranged, and a fixing module is fixedly arranged on the upper end face of the base 1 along one end of the length direction of the base. The guide rail 3 is fixedly arranged on the upper end face of the base 1, and the guide rail 3 extends to the other end of the upper end face of the base 1 along the length direction of the base 1 from the fixed module. The slide block 4 is clamped on the outer side of the guide rail 3, so that the slide block can slide on the guide rail 3 in a reciprocating manner. The sliding module is fixedly arranged at the upper end of the sliding block 4.

The fixed module comprises a fixed frame 2, the fixed frame 2 is of a cube structure, a square inserting groove 7 is formed in the upper end face of the fixed frame 2, a square passing groove is formed in the side wall of one side of the inserting groove 7, which faces the sliding module, the square passing groove is flush with the bottom face of the clamping groove, and the width of the square passing groove is smaller than that of the inserting groove 7. The plug-in groove 7 is provided with two upwardly open U-shaped grooves 8 on the side wall of the side remote from the slide module.

The lower clamping plate 9 and the upper clamping plate 10 are inserted into the insertion groove 7 of the fixing frame 2, the cross sections of the upper clamping plate 10 and the lower clamping plate 9 are the same, and the upper clamping plate and the lower clamping plate are of a convex structure and are inserted into the insertion groove 7 and the square through groove respectively. A lower butt joint groove is respectively arranged at two ends of the upper end face of the lower clamping plate 9, an upper butt joint groove is respectively arranged at two ends of the lower end face of the upper clamping plate 10, the upper butt joint groove corresponds to the lower butt joint groove, a vertical positioning pin 11 is inserted into a group of upper butt joint grooves and the lower butt joint grooves, and the upper clamping plate 10 and the lower clamping plate 9 are positioned through the positioning pin 11.

Two groups of semicircular grooves 15 are respectively arranged on the butt-jointed end surfaces of the upper clamping plate 10 and the lower clamping plate 9, and the two semicircular grooves 15 in each group are butt-jointed to form a complete circular groove. The semicircular grooves 15 are provided along the longitudinal direction of the base 1, and each semicircular groove 15 communicates with both end surfaces of the upper and lower clamping plates 10 and 9.

Two threaded holes are formed in the side face, far away from the sliding module, of the lower clamping plate 9, the two threaded holes are respectively arranged corresponding to the two U-shaped grooves 8 in the fixing frame 2, and the two fastening screws 14 are respectively connected with the threaded holes in the lower clamping plate 9 after penetrating through the U-shaped grooves 8 in the fixing frame 2 in a threaded mode. After the lower clamping plate 9 is adjusted to the height inside the fixing frame 2, the fastening screw 14 is screwed, so that the heights of the lower clamping plate 9 and the upper clamping plate 10 can be locked, and the heights of the upper clamping plate 10 and the lower clamping plate 9 are adjusted through the fastening screw 14 and the U-shaped groove 8 on the fixing frame 2.

A lower spring groove is provided at the center of the upper end surface of the upper clamping plate 10, an upper spring groove is provided at the center of the lower end surface of the upper clamping plate 10, and a first spring 12 is provided inside the lower spring groove and the upper spring groove. A threaded hole is formed in the center of the bottom surface of the lower spring groove, a vertical through hole is formed in the center of the top surface of the upper spring groove, and a locking screw 13 passes through the through hole in the top surface of the upper spring groove and the threaded hole in the bottom surface of the lower spring groove downwards after penetrating through the first spring 12, so that the upper clamping plate 10 and the lower clamping plate 9 are mutually locked, and the tight butt joint of the semicircular grooves 15 on the butt joint end surfaces of the upper clamping plate 10 and the lower clamping plate 9 is ensured.

The upper end surface of the slider 4 is kept horizontal and has a square structure. Four threaded holes are formed in the upper end face of the sliding block 4, a horizontal square fixing plate 6 is arranged on the upper end face of the sliding block 4, four counter bores are formed in the upper end face of the fixing plate 6, and four screws sequentially penetrate through the four counter bores and then are in threaded connection with the four threaded holes in the upper end face of the sliding block 4, so that the fixing plate 6 is fixed on the upper end face of the sliding block 4. The left and right ends of the fixed plate 6 are respectively beyond the left and right ends of the slider 4, and four counter bores are arranged on the lower end surfaces of the two end areas beyond the fixed plate 6.

The sliding module comprises a sliding seat 5, a bushing 17, a push rod 18, a compression rod 20, a second spring 23 and an adjusting sleeve 21.

The sliding seat 5 is of a cube structure and is positioned on the upper end face of the fixed plate 6, four threaded holes are formed in the lower end face of the sliding seat 5, and four screws upwards penetrate through counter bores in the lower end face of the fixed plate 6 and then are in threaded connection with the threaded holes in the lower end face of the sliding seat 5, so that the sliding seat 5 is fixedly connected with the fixed plate 6. Two mounting holes 16 are provided in the interior of the slide block 5, and the two mounting holes 16 are provided along the longitudinal direction of the guide rail 3 and communicate with both side end surfaces of the slide block 5. The two mounting holes 16 are respectively arranged corresponding to the two groups of semicircular grooves 15 on the butt joint end surfaces of the upper clamping plate 10 and the lower clamping plate 9.

The mounting hole 16 is in threaded connection with a bushing 17 at the opening near one side of the fixed module, a through hole is arranged at the axis of the bushing 17, and the through hole and the mounting hole 16 are coaxially arranged. The mounting hole 16 is provided with an adjusting sleeve 21 in a screwed connection at an opening far away from one side of the fixed module, a through hole is arranged at the axis of the adjusting sleeve 21, and the through hole and the mounting hole 16 are coaxially arranged. The inner part of the through hole of the bushing 17 is inserted with a push rod 18, the center of the end face of one end of the push rod 18, which faces the fixed module, is fixedly provided with a thimble 19, one end of the push rod 18, which is far away from the fixed module, is fixedly connected with one end of the press rod 20, which is close to the fixed module, and one end of the press rod 20, which is far away from the fixed module, passes through the adjusting sleeve 21 and then extends out of the sliding seat 5, and the end part of the press rod 20, which extends out, is fixedly provided with a knob 22. An annular bulge is fixedly arranged in the middle of the outer side surface of the compression bar 20, and the annular bulge is contacted with one side end surface of the adjusting sleeve 21, which is close to the fixed module. A second spring 23 is sleeved outside the pressing rod 20 and the ejector rod 18, and two ends of the second spring 23 are respectively contacted with the annular bulge outside the pressing rod 20 and the bushing 17.

The working principle of the utility model is as follows:

firstly, the locking screw 13 at the upper end of the upper clamping plate 10 is unscrewed, so that the upper clamping plate 10 and the lower clamping plate 9 start to be far away from each other under the action of the resilience force of the first spring 12, the semicircular grooves 15 between the upper clamping plate 10 and the lower clamping plate 9 are gradually far away, two polytetrafluoroethylene tubes can be respectively placed at the two semicircular grooves 15 of the lower clamping plate 9, after the length of each polytetrafluoroethylene tube is determined, the locking screw 13 is screwed, and the polytetrafluoroethylene tubes are clamped by the upper clamping plate 10 and the semicircular grooves 15 on the lower clamping plate 9.

Then, the distal end of the polytetrafluoroethylene tube was heated to soften it.

Then, the sliding block 4 is slid to drive the sliding module to approach to one side of the fixed module, along with the sliding seat 5 gradually approaching to the fixed module, the polytetrafluoroethylene tube stretches into the bushing 17 and gradually contacts with the end face of the ejector rod 18, the ejector pin 19 stretches into the polytetrafluoroethylene tube, and along with the sliding seat 5 continuously slides, the flanging of the polytetrafluoroethylene tube is realized. After the sliding seat 5 is contacted with the fixed module, the flanging procedure is finished, and the locking screw 13 is unscrewed again, so that the polytetrafluoroethylene tube after flanging can be dismounted.

When the flanging length of the polytetrafluoroethylene tube needs to be adjusted, the axial position of the compression bar 20 in the mounting hole 16 can be adjusted by rotating the adjusting sleeve 21, so that the extending amount of the thimble 19 in the bushing 17 is adjusted, and finally the flanging length of the polytetrafluoroethylene tube can be adjusted.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. The utility model provides a turn-ups mechanism of polytetrafluoroethylene tube which characterized in that: the device comprises a base (1), wherein a guide rail (3) is arranged on the upper end surface of the base (1) along the length direction of the upper end surface, a fixed module is arranged on the upper end surface of the base (1) at one end of the guide rail (3), a sliding block (4) is connected onto the guide rail (3) in a sliding manner, and a sliding module is fixedly arranged at the upper end of the sliding block (4); the fixing module comprises a fixing frame (2), the fixing frame (2) is fixedly arranged on the upper end face of the base (1), a lower clamping plate (9) and an upper clamping plate (10) are inserted into the fixing frame (2), and a corresponding semicircular arc groove (15) is formed in the butt joint end face of the lower clamping plate (9) and the upper clamping plate (10); the sliding module comprises a sliding seat (5), the sliding seat (5) is fixed at the upper end of a sliding block (4), a mounting hole (16) is formed in the sliding seat (5), the mounting hole (16) corresponds to a semicircular groove (15) between an upper clamping plate (10) and a lower clamping plate (9), a bushing (17) is screwed at one end, close to the fixed module, of the mounting hole (16), a push rod (18) is arranged in the bushing (17), and a thimble (19) is fixedly arranged at the center of one end, facing the fixed module, of the push rod (18).

2. The flanging mechanism of a polytetrafluoroethylene tube according to claim 1, wherein: the fixing frame (2) is of a cube structure, a square inserting groove (7) is formed in the upper end face of the fixing frame, a square passing groove is formed in the side wall of one side of the inserting groove (7) facing the sliding module, the square passing groove is level with the bottom face of the clamping groove, and the width of the square passing groove is smaller than that of the inserting groove (7); the side wall of the plugging groove (7) at one side far away from the sliding module is provided with two U-shaped grooves (8) with upward openings.

3. The flanging mechanism of a polytetrafluoroethylene tube according to claim 2, wherein: the lower clamping plate (9) and the upper clamping plate (10) are inserted into the insertion groove (7) of the fixing frame (2), the cross sections of the upper clamping plate (10) and the lower clamping plate (9) are the same, and the upper clamping plate and the lower clamping plate are of a convex structure and are inserted into the insertion groove (7) and the square through groove respectively.

4. A flanging mechanism for polytetrafluoroethylene tube as defined in claim 3, wherein: two ends of the upper end face of the lower clamping plate (9) are respectively provided with a lower butt joint groove, two ends of the lower end face of the upper clamping plate (10) are respectively provided with an upper butt joint groove, the upper butt joint groove corresponds to the lower butt joint groove, and a vertical locating pin (11) is inserted into a group of upper butt joint grooves and the lower butt joint grooves.

5. A flanging mechanism for polytetrafluoroethylene tube as defined in claim 3, wherein: two threaded holes are formed in the side face, far away from the sliding module, of the lower clamping plate (9), the two threaded holes are respectively and correspondingly formed in two U-shaped grooves (8) in the fixing frame (2), and two fastening screws (14) are respectively connected with the threaded holes in the lower clamping plate (9) in a threaded mode after penetrating through the U-shaped grooves (8) in the fixing frame (2).

6. A flanging mechanism for polytetrafluoroethylene tube as defined in claim 3, wherein: a lower spring groove is formed in the center of the upper end face of the upper clamping plate (10), an upper spring groove is formed in the center of the lower end face of the upper clamping plate (10), and a first spring (12) is arranged in the lower spring groove and the upper spring groove; a threaded hole is formed in the center of the bottom surface of the lower spring groove, a vertical through hole is formed in the center of the top surface of the upper spring groove, and a locking screw (13) passes through the through hole in the top surface of the upper spring groove downwards and is in threaded connection with the threaded hole in the bottom surface of the lower spring groove after passing through the first spring (12).

7. The flanging mechanism of a polytetrafluoroethylene tube according to claim 1, wherein: the mounting hole (16) is in threaded connection with an adjusting sleeve (21) at an opening at one side far away from the fixed module, and a through hole is formed in the axis of the adjusting sleeve (21).

8. The flanging mechanism for polytetrafluoroethylene tube as defined in claim 7, wherein: one end of the ejector rod (18) far away from the fixed module is fixedly connected with one end of the pressing rod (20) close to the fixed module, one end of the pressing rod (20) far away from the fixed module penetrates through the adjusting sleeve (21) and then stretches out of the sliding seat (5), and a knob (22) is fixedly arranged at the end part of the stretched end of the pressing rod (20).

9. The flanging mechanism for polytetrafluoroethylene tube according to claim 8, wherein: an annular bulge is fixedly arranged in the middle of the outer side surface of the compression bar (20), and the annular bulge is contacted with one side end surface of the adjusting sleeve (21) close to the fixed module; the outer sides of the pressing rod (20) and the ejector rod (18) are sleeved with a second spring (23), and two ends of the second spring (23) are respectively contacted with the annular bulge and the bushing (17) at the outer side of the pressing rod (20).

10. The flanging mechanism of a polytetrafluoroethylene tube according to claim 1, wherein: the upper end face of the sliding block (4) is connected with a horizontal fixing plate (6) through a screw, the upper end of the fixing plate (6) is provided with the sliding seat (5), and the sliding seat (5) is connected with the fixing plate (6) through a screw.

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