CN204183899U - PTFE arm hot pick mould - Google Patents

Abstract

The utility model discloses a mould, which provides a PTFE branch pipe ironing die with simple molding process, low manufacturing cost and good molding quality, which solves the cumbersome and high-cost forming process of the PTFE branch pipe existing in the prior art. Leakage is prone to occur at the seam, so that the molding quality cannot be guaranteed. It includes the tubular lower mold inserted in the butt branch of the PTFE main tube sheet. One end of the tubular lower mold extends downward to the bottom of the PTFE main tube sheet. One end extends upwards into the butt branch pipe, and a lower annular heating tube is provided on the outer casing of the corresponding tubular lower mold under the PTFE main tube plate, and a tubular upper mold is provided on the outer casing of the butt branch pipe, and a lower annular heating tube is provided on the outer casing of the lower port of the tubular upper mold. The upper annular heating pipe corresponding to the heating pipe, the overlapping PTFE main body tube plate and the butt joint branch pipe are sandwiched between the lower annular heating pipe and the upper annular heating pipe.

Description

PTFE branch pipe ironing mold

technical field

The utility model relates to a mold, in particular to a PTFE branch pipe ironing mold with low manufacturing cost and good molding quality.

Background technique

As a polymer material with excellent performance, PTFE has excellent chemical stability, electrical insulation, extremely low dynamic friction coefficient, non-combustibility, chemical corrosion resistance and high mechanical strength, and is widely used in various industries. Especially in anti-corrosion equipment, such as anti-corrosion equipment lining, tee, etc., in the actual use process, it is often necessary to separately lead out the branch branch pipe on the PTFE tube or PTFE plate. Opening a butt joint, and then welding the branch pipe to the butt joint, not only the forming process is cumbersome, but the processing cost is high, and the welding seam is prone to leakage, so that the forming quality cannot be guaranteed.

Contents of the invention

The utility model mainly provides a PTFE branch pipe ironing mold with simple forming process, low manufacturing cost and good forming quality, which solves the cumbersome forming process of PTFE branch pipes in the prior art, high cost and easy seams. Leakage occurs, so that the molding quality cannot be guaranteed and other technical problems.

The above-mentioned technical problems of the utility model are mainly solved by the following technical solutions: a PTFE branch pipe ironing die, including a tubular lower die inserted in the butt joint branch pipe of the PTFE main body tube plate, and one end of the tubular lower die extends downwards To the bottom of the PTFE main tube sheet, the other end extends upwards into the butt branch pipe. The lower annular heating tube is provided on the corresponding tubular lower die under the PTFE main tube sheet, and the tubular upper die is provided on the outer sleeve of the butt branch pipe. The lower port jacket is provided with an upper annular heating pipe corresponding to the lower annular heating pipe, and the overlapping PTFE main body tube plates and butt branch pipes are sandwiched between the lower annular heating pipe and the upper annular heating pipe. By setting the tubular lower mold in the PTFE pipe corresponding to the butt branch pipe or below the PTFE plate, the tubular lower mold extends from the bottom to the top through the butt hole of the PTFE main tube sheet to the butt joint branch pipe, and the corresponding hole above the PTFE main tube sheet A tubular upper mold is set on the butt branch pipe, because the lower annular heating tube is covered with the corresponding butt branch pipe outside the PTFE main tube plate, and the upper annular heating tube corresponding to the lower annular heating tube is covered at the lower end of the butt branch pipe close to the PTFE main tube plate When in use, the upper and lower annular heating tubes are used to clamp the lap joint of the PTFE main tube sheet and the butt branch pipe, and the upper and lower annular heating tubes are energized to make the PTFE main tube sheet and the annular lap section of the butt branch pipe heat up and melt together Together, the butt joint of the branch pipe of the PTFE tube sheet is completed. Compared with the traditional welding connection, the forming process is simple and the manufacturing cost is low. After the joint is completely melted, it forms an integrated structure, so that no leakage occurs and the forming quality is good.

As a preference, the tubular upper die extends upwards to the outside of the upper port of the butt branch pipe, a backing plate is provided on the upper port of the tubular upper die, a horizontal pull plate is provided in the middle hole of the tubular lower die, and a horizontal pull plate is provided between the backing plate and the horizontal Pull rods are screwed between the pull plates. By setting the tie rod between the tubular upper and lower molds, the clamping force of the tubular upper and lower molds can be increased by tightening the tie rods, so as to ensure the complete melting of the annular lap joint between the PTFE main tube sheet and the butt branch pipe, and ensure the connection between the two quality.

More preferably, the backing plate is slidably connected to the pull rod, a pressure plate is screwed on the corresponding pull rod above the backing plate, and a compression spring is sheathed on the corresponding pull rod between the pressure plate and the backing plate. By sheathing a compression spring on the pull rod, it can be automatically clamped by the restoring force of the compression spring.

Preferably, the cross section of the lower annular heating tube and the upper annular heating tube is square, and the PTFE main body tube plate and the butt branch pipe are sandwiched between the top surface of the lower annular heating tube and the bottom surface of the upper annular heating tube. The PTFE main tube sheet and the annular lap section of the butt branch pipe are clamped between the top and bottom surfaces of the upper and lower annular heating tubes to ensure that the melted PTFE main tube sheet remains flat and the connection is firm and reliable.

The flanging can be arranged in parallel above the PTFE main body tube sheet. As a preference, the lower port of the butt branch pipe docked with the PTFE main body tube sheet extends horizontally outwards to form a flanging, and the flanging is sandwiched between the lower annular heating tube and the PTFE main body in parallel. between the tube sheets. The flange is located under the PTFE main tube sheet, which is convenient for the positioning of the butt branch pipe and convenient for processing. At the same time, because the melting section is located under the PTFE main tube sheet, the connection seam of the butt branch pipe after processing is more beautiful.

Therefore, the PTFE branch pipe ironing mold of the present utility model has the following advantages: the lap joint of the PTFE main body tube plate and the butt joint branch pipe is clamped by the upper and lower annular heating tubes on the tubular upper and lower molds, and the upper and lower annular The heating tube is energized to heat up the annular lap joints and melt together to complete the butt joint of the PTFE tube sheet. Compared with the traditional welding connection, the forming process is simple, the manufacturing cost is low, no leakage occurs at the joint, and the forming quality is good.

Description of drawings:

Fig. 1 is the structural representation of the utility model PTFE branch pipe ironing mold.

Detailed ways:

The technical solutions of the present utility model will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

Example:

As shown in Figure 1, a kind of PTFE branch pipe ironing die of the present utility model comprises PTFE main body tube plate 1 and the butt joint branch pipe 2 vertically interspersed in the butt joint hole of PTFE main body tube plate 1, the lower port of butt joint branch pipe 2 is horizontal Extend outward to form a flanging 21, the upper surface of the flanging 21 is parallel to the edge of the butt hole corresponding to the lower surface of the PTFE main body tube sheet 1, and the lower port of the butt branch pipe 2 is inserted from bottom to top with a tubular lower mold 3, The lower end of the tubular lower die 3 is located below the flange 21, and the upper end is located in the butt joint pipe 2. The lower annular heating tube 4 is covered on the corresponding tubular lower die 3 below the flange 21, and the corresponding butt joint pipe above the PTFE main tube plate 1 2. A tubular upper die 5 is placed on the top, and the upper port of the tubular upper die 5 extends upwards to the outside of the upper port of the butt branch pipe 2. The lower port of the tubular upper die 5 close to the upper surface of the PTFE main body tube plate 1 is covered with a lower ring The upper annular heating pipe 6 corresponding to the heating pipe 4, the cross sections of the lower annular heating pipe 4 and the upper annular heating pipe 6 are all square, and the top surface of the lower annular heating pipe 4 is parallel to the bottom surface of the upper annular heating pipe 6, overlapping each other. The connected PTFE main body tube plate 1 and the flange 21 of the butt branch pipe 2 are clamped in parallel between the top surface of the lower annular heating tube 4 and the bottom surface of the upper annular heating tube 6, and a piece is horizontally placed on the upper port of the tubular upper mold 5 The backing plate 7 is fixed with a horizontal pull plate 8 in the middle hole of the tubular lower die 3, and a pull rod 9 is vertically connected between the back plate 7 and the horizontal pull plate 8, and the lower end of the pull rod 9 is screwed to the horizontal pull plate 8 In the middle part, the backing plate 7 is slidably set on the pull rod 9, and a pressure plate 10 is screwed on the end of the corresponding pull rod 9 above the backing plate 7, and a compression spring 11 is sleeved on the corresponding pull rod 9 between the pressure plate 10 and the backing plate 7, Both ends of the compression spring 11 abut against the pressing plate 10 and the backing plate 7 respectively.

The specific embodiments described herein are only examples to illustrate the concept of the present utility model. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Claims (5)

1. A PTFE branch pipe ironing die is characterized in that: it includes a tubular lower die (3) inserted in the butt joint branch pipe (2) of the PTFE main body tube plate (1), and one end of the tubular lower die (3) extends downwards To the bottom of the PTFE main tube sheet (1), the other end extends upwards into the butt branch pipe (2), and the lower annular heating tube (4) is provided on the outer sleeve of the corresponding tubular lower die (3) under the PTFE main tube sheet (1), A tubular upper mold (5) is provided on the butt branch pipe (2), and an upper annular heating tube (6) corresponding to the lower annular heating tube (4) is provided on the outer sleeve of the lower port of the tubular upper mold (5), overlapping each other The PTFE main body tube sheet (1) and the butt branch pipe (2) are sandwiched between the lower annular heating tube (4) and the upper annular heating tube (6). 2. The PTFE branch pipe ironing die according to claim 1, characterized in that: the tubular upper die (5) extends upwards beyond the upper port of the butt joint branch pipe (2), and is at the upper port of the tubular upper die (5) A backing plate (7) is provided on the top, a horizontal pull plate (8) is arranged in the middle hole of the tubular lower die (3), and a tie rod (9) is screwed between the backing plate (7) and the horizontal pull plate (8). . 3. The PTFE branch pipe ironing mold according to claim 2, characterized in that: the backing plate (7) is slidably connected to the tie rod (9), and the corresponding tie rod (9) above the backing plate (7) is screwed on A pressing plate (10) is connected, and a compression spring (11) is sheathed on the corresponding pull rod (9) between the pressing plate (10) and the backing plate (7). 4. The PTFE branch pipe ironing mold according to claim 1, 2 or 3, characterized in that: the cross section of the lower annular heating tube (4) and the upper annular heating tube (6) is square, and the PTFE main tube plate (1) and the butt branch pipe (2) are sandwiched between the top surface of the lower annular heating tube (4) and the bottom surface of the upper annular heating tube (6). 5. The PTFE branch pipe ironing mold according to claim 1, 2 or 3, characterized in that: the lower port of the butt branch pipe (2) that is docked with the PTFE main body tube sheet (1) extends horizontally outwards to form a flanging (21), the flanging (21) is sandwiched between the lower annular heating tube (4) and the PTFE main tube sheet (1) in parallel.