JP2020203472A - Handheld automatic hot melt joining facility of ppr feed water pipe for home use - Google Patents

Abstract

To disclose a handheld automatic hot melt joining facility of a PPR feed water pipe for home use.SOLUTION: A handheld automatic hot melt joining facility of a PPR feed water pipe for home use includes a hot melt joining box. In the hot melt joining box, a hot melt joining chamber is installed. In the hot melt joining box, two lifting driving devices capable of sandwiching a feed pipe and joining the feed pipe with a pipe fitting are vertically symmetrically installed. In the hot melt joining box, two front side socket opening/closing devices being vertically symmetrical and positioning at a right-hand side of the lifting driving devices are installed, and two rear side socket opening/closing devices positioning at a right-hand side of the front side socket opening/closing devices are installed. This invention can realize automatic hot melt joining of a feed pipe for home use. Thereby, a request for experience of an operator is lowered, burning risks of an operator is effectively reduced, and simultaneously, a quality stability of hot melt joining is enhanced.SELECTED DRAWING: Figure 1

Description

The present invention relates to the field of automatic hot-melt bonding technology for household water supply pipes, and specifically is a hand-held household PPR water supply pipe automatic hot-melt bonding facility.

PPR (Random Copolymer) pipes are environmentally friendly, corrosion resistant, have a long service life, have good hot melt bonding performance, are easy to install, and have good long-term creep prevention performance or under high temperature conditions. It has pressure receiving performance, so it can develop rapidly in the household pipe market, widely applied in the domestic water field in industrial and residential buildings, PPR water supply pipe uses hot melt bonding technology, and is currently for household use. The hot melt joining of the PPR pipe was completed by artificial operation, and the concrete process was to put the water supply pipe and the pipe joint waiting for joining into the molds on both sides of the hot melt machine and heat them, and then heat them. The water supply pipe and the pipe joint are pulled out from the mold, turned quickly and inserted to join, and since there is a strict limit on the heating time to the water supply pipe, if the heating time is too short, water will leak and heat will not be firmly joined. If the time is too long, the outer diameter of the pipe will shrink, which will affect the normal water supply, and it will have to be plugged in and joined without rotating quickly, so it must be done by experienced workers. At the same time, there is a risk that the heating mold of the hot melt machine will be exposed to the outside and the operator will be injured, and the present invention discloses equipment that can solve the above problems.

Publication No. 102187929 of Chinese Patent Application

Technical problem: Currently, hot-melt joining of PPR water supply pipes is completed mainly by man-made work, which requires abundant work experience of workers and there is a risk of burns to workers.

In order to solve the above problems, the present invention designs an automatic hot-melt joining facility for a hand-held household PPR water pipe, and automatically hot-melts the hand-held household PPR water pipe described in the present invention. The joining equipment includes a hot melt joining box, a hot melt joining chamber is installed in the hot melt joining box, a water supply pipe is sandwiched in the hot melt joining chamber, and the water supply pipe is joined to a pipe joint. Two elevating drive devices that can be installed vertically symmetrically, and two front socket opening / closing devices that are vertically symmetrical and located on the right side of the elevating drive device are installed in the hot melt bonding chamber. Installed, the front socket opening / closing device was hinged to a rack slider, a slider rod hinged to the rack slider, and a slider rod hinged to the slider rod so that it could slide into the hot melt bonding chamber. The swing rod and the rack slider slide left and right to rotate and interlock the slider rod and the swing rod to open and close the front socket, and the hot melt bonding chamber is vertically symmetrical. In addition, two rear socket opening / closing devices located on the right side of the front socket opening / closing device are installed, and the rear socket opening / closing device has an interlocking slider connected so as to slide into the hot melt joining chamber and the above. The conrod connected to the interlocking slider by a hinge, the slider connected to the conrod by a hinge, and the interlocking slider slide left and right to slide the slider left and right through the conrod to open and close the rear socket. This has been realized, and a rotary feeding device is installed in the elevating drive device, in which the inner ring can rotate and interlock the outer ring, but the outer ring cannot rotate and interlock the inner ring.

Preferably, the inner walls on both the left and right sides of the hot melt joining chamber are provided with inlets penetrating to the left and right, respectively, and the water supply pipe and the pipe joint to be joined by the hot melt are passed through the inlets on the left and right sides, respectively. It extends into the joining chamber and a grip is fixedly connected to the lower end face of the hot melt joining chamber.

Taking the elevating drive device on the upper side as an example, the elevating drive device includes a telescopic box fixedly connected to the upper inner wall of the hot melt joining chamber, and a telescopic chamber opened downward is installed in the telescopic box. A telescopic spring is connected to the telescopic chamber so that the long slider can slide, a telescopic spring is connected between the long slider and the upper inner wall of the telescopic chamber, and a rotation is performed on the lower end surface of the long slider. The wheel rods are fixedly connected, and the rotary wheel shaft extending in the front-rear direction is connected to the rear end surface of the rotary wheel rod so as to be rotatable, and the rotary wheel shaft is located on the rear side of the rotary wheel rod. The friction wheels are fixedly connected, and the long rods located on the rear side of the rotating wheel rods are fixedly connected to the lower end surface of the long slider, and the rear inner wall of the hot melt joining chamber is fixedly connected. A slide motor base fixedly connected to the lower end of the long rod is connected so as to be slidable, and a motor shaft extending in the front-rear direction is connected to the motor shaft so as to be rotatable in the hot melt joining chamber. Is connected so that power can be transmitted to a motor fixedly connected to the slide carrier, a gear located on the front side of the motor is fixedly connected to the motor shaft, and the motor shaft is fixedly connected to the motor shaft. The rotary feed device located between the gear and the friction wheel is installed.

Taking the front socket opening / closing device on the upper side as an example, the front socket opening / closing device includes a slide base fixedly connected to the upper inner wall of the hot melt joining chamber and located on the right side of the telescopic box, and the slide. The lower end surface of the table and the rack slider are connected so as to be slidable, and the return block located on the left side of the rack slider is connected to the lower end surface of the slide table so as to be slidable. A return spring is connected between the left end surface of the telescopic box and the right end surface of the telescopic box, a fixed rod is fixedly connected to the lower end surface of the rack slider, and the fixed rod is opened downward. A slide chamber is installed, and a telescopic rod is connected so as to slide in the slide chamber, a spring is connected between the telescopic rod and the upper inner wall of the slide chamber, and the telescopic rod is connected to the lower end of the telescopic rod. The racks connected so as to mesh with the gears are fixedly connected, the slide base and the swing rod are connected so as to be rotatable, and the place where the racks are connected so as to be rotatable is located above the rack slider. The slider rod and the middle end of the swing rod are connected by a hinge, the outer socket rod is connected to the right end surface of the slide base so that the outer socket rod can slide, and the outer socket rod can slide with the swing rod. The rotating blocks connected in this way are connected by a hinge, and an outer hot melt socket capable of hot melting the water supply pipe is connected to the lower end of the outer socket rod so that it can be removed.

Preferably, the spring and the slide chamber allow the rack to move up and down with the length slider, whereby the rack is in constant mesh with the gear.

Taking the upper rear socket opening / closing device as an example, the rear socket opening / closing device includes an elevating box fixedly connected to the upper inner wall of the hot melt joining chamber, and a slope chamber having a slope is installed in the elevating box. A position limiting hole opened upward is provided on the upper inner wall of the slope chamber, and a slide groove opened downward is formed on the lower inner wall of the slope chamber, and the lower end surface of the slope chamber is formed. The interlocking slider is connected so as to be slidable, the rotating rod is connected to the interlocking slider by a hinge, the other end of the rotating rod and the outer socket rod are connected by a hinge, and the interlocking slider is connected by a hinge. It is located on the upper side of the rotating block, and the place where the interlocking slider and the conrod are connected by a hinge is located on the right side where the rotating rod and the interlocking slider are connected by a hinge. The other end of the conrod and the slider are connected by a hinge, the slider and the lower inner wall of the slope chamber are connected so as to be slidable, and the rotating rod-shaped body is connected to the upper end surface of the slider so as to be rotatable. A torsion spring is installed at a position where the rotating rod-shaped body and the slider are connected so as to be rotatable, and the lower end surface of the slider extends to the outside of the lower end surface of the slope chamber, and the slider is described. An inner socket rod connected to the slide groove so as to slide is fixedly connected, and an inner hot melt socket is connected to the lower end of the inner socket rod so that the inner hot melt socket can be removed.

Preferably, the lower inner wall of the slope chamber is composed of a lower plane, an upper plane and a transient slope, which causes the inner hot melt socket to expand after being disengaged from the fitting so that the rotating rod is formed. The movement of the inner hot melt socket is restricted by being able to come into contact with the position limiting hole, and the torsion spring is harder than the return spring.

The rotary feed device includes a drive wheel that is fixedly connected to the motor shaft and is located on the front side of the gear, and eight pawl chambers are arranged in an annular shape in the drive wheel. A pawl is rotatably connected to the pawl chamber, and a tension spring is tied between one side of the pawl that is close to the center of symmetry and the inner wall of the pawl chamber that is close to the center. A rotary wheel located behind the friction wheel is fixedly connected to the rotary wheel shaft, and a rotary wheel chamber that is open to the rear and has a cylindrical shape is installed in the rotary wheel. The rotating wheel is formed so as to have eight rear openings and an annular tooth-shaped groove communicating with the rotating wheel chamber.

Preferably, when the drive wheel rotates, centrifugal force causes the pawl to rotate until it is located outside the pawl chamber and abuts the tooth profile groove, thereby causing the rowheel to rotate and interlock. When the drive wheels are in a stationary state, the rotary wheels rotate and cannot come into contact with the pawls, and therefore the drive wheels cannot be rotationally interlocked.

The beneficial effect of the present invention is: The present invention is an automatic hot melt joining equipment for handheld household PPR water supply pipes, and by installing a heating mold inside the equipment, there is a risk of injury to workers. After the number of pipes has decreased and the pipes have been heated, the pipe insertion and connecting device is automatically started to insert and connect the water supply pipe and the pipe joint heated by the composite rotary wheel without rotating them quickly, and the mold release device. And the pipe fitting insertion connection device are interlocked, and in the process of inserting and connecting the water supply pipe and the pipe joint, the mold release device interlocks the mold and automatically separates the water supply pipe and the pipe joint. By avoiding stopping the process of inserting and connecting the molds, the present invention can achieve automatic hot melt joining of household water supply pipes, thereby lowering the demand on the worker's experience. Effectively reduces the risk of injury to workers and at the same time increases the quality stability of hot melt bonding.

In order to explain the present invention in detail with reference to FIGS. 1 to 7 below and to explain the present invention in a convenient manner, the following directions are defined as follows: FIG. 1 is a front view of the apparatus of the present invention, and is described above and below. The left-right front-back direction and the up-down, left-right front-back direction of the self-projection relationship in FIG. 1 are the same.

FIG. 1 is a schematic diagram of the overall structure of an automatic hot-melt joining facility for a handheld household PPR water supply pipe of the present invention. FIG. 2 is a schematic structure diagram in the “AA” direction of FIG. FIG. 3 is a schematic structure diagram in the “BB” direction of FIG. FIG. 4 is a schematic structure diagram in the “CC” direction of FIG. FIG. 5 is a schematic structure diagram in the “DD” direction of FIG. FIG. 6 is an enlarged schematic diagram of the structure at “E” in FIG. FIG. 7 is a schematic diagram of the structurally enlarged structure at “F” in FIG.

The present invention is related to an automatic hot-melt joining facility for a hand-held household PPR water supply pipe, and is mainly applied to automatically hot-melt bonding a household PPR water supply pipe. To further explain the present invention:
The automatic hot-melt bonding equipment for a hand-held household PPR water supply pipe described in the present invention includes a hot-melt bonding box 11, and a hot-melt bonding chamber 12 is installed in the hot-melt bonding box 11. Two elevating drive devices 101 capable of sandwiching a water supply pipe and joining the water supply pipe to a pipe joint are vertically symmetrically installed in the hot melt joining chamber 12, and are installed in the hot melt joining chamber 12. Are vertically symmetrical and are provided with two front socket opening / closing devices 102 located on the right side of the elevating drive device 101 so that the front socket opening / closing device 102 can slide into the hot melt bonding chamber 12. The rack slider 34 connected, the slider rod 35 hinged to the rack slider 34, the swing rod 33 hinged to the slider rod 35, and the rack slider 34 slide left and right to obtain the above. The front socket opening / closing operation is realized by rotating and interlocking the slider rod 35 and the swing rod 33, and the hot melt bonding chamber 12 is vertically symmetrical and is located on the right side of the front socket opening / closing device 102. Two rear socket opening / closing devices 103 are installed, and the rear socket opening / closing device 103 is connected to the interlocking slider 19 so as to be slidable into the hot melt bonding chamber 12 and to the interlocking slider 19 with a hinge. The conrod 16 and the slider 15 connected to the conrod 16 by a hinge and the interlocking slider 19 slide left and right to slide the slider 15 left and right through the conrod 16 to open and close the rear socket. Realized, the elevating drive device 101 is equipped with a rotary feed device 104 in which the inner ring can rotate and interlock the outer ring, but the outer ring cannot rotate and interlock the inner ring.

To be beneficial, the left and right inner walls of the hot melt joining chamber 12 are provided with feed ports 31 penetrating to the left and right, respectively, and the water supply pipes and pipe joints joined by the hot melt are the left and right feed ports, respectively. A grip 13 extends into the hot melt bonding chamber 12 through 31 and is fixedly connected to the lower end surface of the hot melt bonding chamber 12.

Hereinafter, the elevating drive device 101 will be described in detail according to the embodiment, and the elevating drive device 101 on the upper side will be taken as an example, and the elevating drive device 101 is a telescopic box fixedly connected to the upper inner wall of the hot melt joining chamber 12. A telescopic chamber 22 which includes 24 and is open downward is installed in the telescopic box 24, and a long slider 25 is connected so as to be slidable in the telescopic chamber 22, and the long slider 25 and the telescopic chamber are connected. A telescopic spring 23 is connected to the upper inner wall of the 22; a rotary wheel rod 26 is fixedly connected to the lower end surface of the long slider 25, and a front-rear direction is connected to the rear end surface of the rotary wheel rod 26. The rotary wheel shaft 28 extending to the above is connected so as to be rotatable, and the friction wheel 48 located on the rear side of the rotary wheel rod 26 is fixedly connected to the rotary wheel shaft 28, and the lower end surface of the long slider 25 is connected. A long rod 44 located on the rear side of the rotary wheel rod 26 was fixedly connected to the rear inner wall of the hot melt joining chamber 12, and was fixedly connected to the lower end of the long rod 44 on the rear inner wall of the hot melt joining chamber 12. The slide motor base 41 is connected so as to be slidable, the motor shaft 43 extending in the front-rear direction is connected to the hot melt joining chamber 12 so as to be able to rotate, and the motor shaft 43 is fixed to the slide carryage 41. The motors 42 that are specifically connected are connected so that power can be transmitted, the gear 30 located on the front side of the motor 42 is fixedly connected to the motor shaft 43, and the gears are fixedly connected to the motor shaft 43. The rotary feed device 104 located between the 30 and the friction ring 48 is installed.

Hereinafter, the front socket opening / closing device 102 will be described in detail according to an embodiment, and the front socket opening / closing device 102 on the upper side is taken as an example, and the front socket opening / closing device 102 is fixedly connected to the upper inner wall of the hot melt joining chamber 12. In addition, the slide base 21 located on the right side of the telescopic box 24 is included, and the lower end surface of the slide base 21 and the rack slider 34 are connected so as to be slidable, and are connected to the lower end surface of the slide base 21. Is connected so that the return block 59 located on the left side of the rack slider 34 can slide, and the return spring 58 is connected between the left end surface of the return block 59 and the right end surface of the telescopic box 24. A fixed rod 47 is fixedly connected to the lower end surface of the rack slider 34, a slide chamber 46 opened downward is installed in the fixed rod 47, and a telescopic rod 32 is installed in the slide chamber 46. A rack 27 is connected so that the telescopic rod 32 can slide, a spring 45 is connected between the telescopic rod 32 and the upper inner wall of the slide chamber 46, and the lower end of the telescopic rod 32 is connected so as to mesh with the gear 30. Is fixedly connected, the slide base 21 and the swing rod 33 are rotatably connected, and the rotatably connected portion is located above the rack slider 34, and the slider rod 35 And the middle end of the swing rod 33 are connected by a hinge, the outer socket rod 36 is connected to the right end surface of the slide base 21 so as to be slidable, and the outer socket rod 36 can slide with the swing rod 33. The rotating blocks 37 thus connected are connected by a hinge, and the outer hot melt socket 38 capable of hot melting the water supply pipe is connected to the lower end of the outer socket rod 36 so that the outer hot melt socket 38 can be removed.

Beneficially, the spring 45 and the slide chamber 46 allow the rack 27 to move up and down with the length slider 25, whereby the rack 27 is in constant mesh with the gear 30.

Hereinafter, the rear socket opening / closing device 103 will be described in detail according to the embodiment, and the upper rear socket opening / closing device 103 is taken as an example, and the rear socket opening / closing device 103 is fixedly connected to the upper inner wall of the hot melt joining chamber 12. A slope chamber 14 including an elevating box 55 and having a slope is installed in the elevating box 55, and a position limiting hole 18 opened upward is installed on the upper inner wall of the slope chamber 14 to provide the slope chamber 14. A slide groove 17 opened downward is formed on the lower inner wall, and the lower end surface of the slope chamber 14 and the interlocking slider 19 are connected so as to be slidable, and the rotating rod 20 is attached to the interlocking slider 19. The other end of the rotating rod 20 and the outer socket rod 36 are connected by a hinge, and the place where the outer socket rod 36 is connected by a hinge is located above the rotating block 37, and the interlocking slider 19 and the outer socket rod 36 are connected. The place where the conrod 16 is connected by a hinge is located on the right side where the rotating rod 20 and the interlocking slider 19 are connected by a hinge, and the other end of the conrod 16 and the slider 15 are hinged. The slider 15 and the lower inner wall of the slope chamber 14 are connected so as to be slidable, and the rotating rod-shaped body 56 is connected to the upper end surface of the slider 15 so as to be rotatable, and is connected to the rotating rod-shaped body 56. A torsion spring 57 is installed at a position where the slider 15 is connected so as to be rotatable, and the lower end surface of the slider 15 extends to the outside of the lower end surface of the slope chamber 14 and has a slide groove. An inner socket rod 39 that is slidably connected to 17 is fixedly connected, and an inner hot melt socket 40 is connected to the lower end of the inner socket rod 39 so that it can be removed.

Beneficially, the lower inner wall of the slope chamber 14 is composed of a lower plane, an upper plane, and a transient slope, which causes the inner hot melt socket 40 to expand after being detached from the pipe joint. The rotating rod 56 can come into contact with the position limiting hole 18 to limit the movement of the inner hot melt socket 40, and the torsion spring 57 is harder than the return spring 58, thereby limiting the position of the rotating rod 56 and the position limiting spring 58. After the holes 18 are brought into contact with each other, the torsion spring 57 cannot push the rack slider 34 to return the entire device, and the outer hot melt socket 38 and the inner hot melt socket 40 are removed and replaced. Can be connected correspondingly to water pipes of different diameters.

Hereinafter, the rotary feed device 104 will be described in detail according to an embodiment, and the rotary feed device 104 includes a drive wheel 50 that is fixedly connected to the motor shaft 43 and is located on the front side of the gear 30. Eight pawl chambers 52 are arranged in an annular shape in the drive wheel 50, and the pawl 53 is connected so as to be rotatable in the pawl chamber 52, and one side of the pawl 53 close to the center of symmetry. A tension spring 54 is connected to the inner wall of the pawl chamber 52 on one side close to the center, and a rotary wheel 29 located on the rear side of the friction wheel 48 is fixedly attached to the rotary wheel shaft 28. A rotary wheel chamber 49 that is connected and is open rearward and has a cylindrical shape is installed in the rotary wheel 29, and the rotary wheel 29 is open eight rearward and the rotary wheel 29. The tooth profile 51 communicating with the chamber 49 is formed to be annular.

Beneficially, when the drive wheel 50 rotates, centrifugal force rotates the pawl 52 until it is located outside the pawl chamber 52 and abuts it in contact with the tooth profile 51, thereby causing the swivel wheel. 29 is rotationally interlocked, and when the drive wheel 50 is in a stationary state, the rotary wheel 29 rotates and cannot come into contact with the pawl 52, and therefore the drive wheel 50 cannot be rotationally interlocked.

Hereinafter, the steps of using the automatic hot melt joining equipment of the handheld household PPR water supply pipe of the present application will be described in detail together with FIGS. 1 to 7.

At the beginning, the outer hot melt socket 38 and the inner hot melt socket 40 on both the upper and lower sides are closed, the slider 15 is in the limit position on the right side, and the outer hot melt socket 38 and the inner hot melt socket 40 are operated when the power is turned on. Heat to temperature.

At the time of operation, the connected water supply pipe is inserted into the inner wall of the outer hot melt socket 38 through the left inlet 31 to be connected, and the connected pipe joint is inserted into the end face of the inner hot melt socket 40 through the right inlet 31. After the set time has passed, the motor 42 is started, the motor 42 rotates and interlocks the gear 30 with the motor shaft 43, the gear 30 moves the rack 27 to the left, and the rack 27 moves the telescopic rod. The rack slider 34 is moved and interlocked to the left by the 32 and the fixed rod 47, and the rack slider 34 rotates and interlocks the slider rod 35, the swing rod 33, and the rotation block 37 to the side away from the center of symmetry, and the rotation block. 37 moves the outer socket rod 36 and the outer hot melt socket 38 to the side away from the center of symmetry along the right end surface of the slide base 21, and the outer socket rod 36 moves the interlocking slider 19 to the left by the rotating rod 20. The interlocking slider 19 moves the slider 15 to the left by the conrod 16, and the slider 15 interlocks the inner hot melt socket 40 to move it out of the inner chamber of the pipe joint and move it away from the center of symmetry. At the same time, the motor 42 rotates and interlocks the drive wheels 50 with the motor shaft 43, the drive wheels 50 rotate and interlock the rotary wheels 29 with the pawl 53, and the water supply pipe heated by the motor 42 moves and interlocks to the right to form a pipe joint. The hot melt joining work is completed by inserting and connecting, and at the same time, the slider 15 moves to the limit position on the left side, and the rotating rod-shaped body 56 comes into contact with the position limiting hole 18 to the outside of the end face of the hot melt joining chamber 12. The worker can determine whether or not the hot melt joint is completed by observing whether or not the rotating rod-shaped body 56 extends to the outside of the hot melt joint chamber 12, and after the hot melt joint is completed, the worker can determine. Can remove the hot melt joining device from the water supply pipe along the water supply pipe, rotate the rotating rod-shaped body 56 to separate the rotating rod-shaped body 56 from the position limiting hole 18, and the return spring 58 is released by the return block 59 to the rack slider 34. Moves to the right and interlocks, thereby returning the entire device.

The beneficial effect of the present invention is: The present invention is an automatic hot melt joining equipment for handheld household PPR water supply pipes, and by installing a heating mold inside the equipment, there is a risk of injury to workers. After the number of pipes has decreased and the pipes have been heated, the pipe insertion and connecting device is automatically started to insert and connect the water supply pipe and the pipe joint heated by the composite rotary wheel without rotating them quickly, and the mold release device. And the pipe fitting insertion connection device are interlocked, and in the process of inserting and connecting the water supply pipe and the pipe joint, the mold release device interlocks the mold and automatically separates the water supply pipe and the pipe joint. By avoiding stopping the process of inserting and connecting the molds, the present invention can achieve automatic hot melt joining of household water supply pipes, thereby lowering the demand on the worker's experience. Effectively reduces the risk of injury to workers and at the same time increases the quality stability of hot melt bonding.

By the above method, those skilled in the art can make various changes based on the operation mode within the scope of the present invention.

The present invention relates to the field of automatic hot-melt bonding technology for household water supply pipes, and specifically, is a hand-held household PPR water supply pipe automatic hot-melt bonding facility.

PPR (Random Copolymer) pipes are environmentally friendly, corrosion resistant, have a long service life, have good hot melt bonding performance, are easy to install, and have good long-term creep prevention performance or under high temperature conditions. It has pressure receiving performance, so it can develop rapidly in the household pipe market, widely applied in the domestic water field in industrial and residential buildings, PPR water supply pipe uses hot melt bonding technology, and is currently for household use. The hot melt joining of the PPR pipe was completed by artificial operation, and the concrete process was to put the water supply pipe and the pipe joint waiting for joining into the molds on both sides of the hot melt machine and heat them, and then heat them. The water supply pipe and the pipe joint are pulled out from the mold, turned quickly and inserted to join, and since there is a strict limit on the heating time to the water supply pipe, if the heating time is too short, water will leak and heat will not be firmly joined. If the time is too long, the outer diameter of the pipe will shrink, which will affect the normal water supply, and it will have to be plugged in and joined without rotating quickly, so it must be done by experienced workers. At the same time, there is a risk that the heating mold of the hot melt machine will be exposed to the outside and the operator will be injured, and the present invention discloses equipment that can solve the above problems.

Publication No. 102187929 of Chinese Patent Application

Technical problem: Currently, hot-melt joining of PPR water supply pipes is completed mainly by man-made work, which requires abundant work experience of workers and there is a risk of burns to workers.

In order to solve the above problems, the present invention designs an automatic hot-melt joining facility for a hand-held household PPR water pipe, and automatically hot-melts the hand-held household PPR water pipe described in the present invention. The joining equipment includes a hot melt joining box, a hot melt joining chamber is installed in the hot melt joining box, a water supply pipe is sandwiched in the hot melt joining chamber, and the water supply pipe is joined to a pipe joint. Two elevating drive devices that can be installed vertically symmetrically, and two front socket opening / closing devices that are vertically symmetrical and located on the right side of the elevating drive device are installed in the hot melt bonding chamber. Installed, the front socket opening / closing device was hinged to a rack slider, a slider rod hinged to the rack slider, and a slider rod hinged to the slider rod so that it could slide into the hot melt bonding chamber. The swing rod and the rack slider slide left and right to rotate and interlock the slider rod and the swing rod to open and close the front socket, and the hot melt bonding chamber is vertically symmetrical. In addition, two rear socket opening / closing devices located on the right side of the front socket opening / closing device are installed, and the rear socket opening / closing device has an interlocking slider connected so as to slide into the hot melt joining chamber and the above. The conrod connected to the interlocking slider by a hinge, the slider connected to the conrod by a hinge, and the interlocking slider slide left and right to slide the slider left and right through the conrod to open and close the rear socket. This has been realized, and a rotary feeding device is installed in the elevating drive device, in which the inner ring can rotate and interlock the outer ring, but the outer ring cannot rotate and interlock the inner ring.

Preferably, the inner walls on both the left and right sides of the hot melt joining chamber are provided with inlets penetrating to the left and right, respectively, and the water supply pipe and the pipe joint to be joined by the hot melt are passed through the inlets on the left and right sides, respectively. It extends into the joining chamber and a grip is fixedly connected to the lower end face of the hot melt joining chamber.

Taking the elevating drive device on the upper side as an example, the elevating drive device includes a telescopic box fixedly connected to the upper inner wall of the hot melt joining chamber, and a telescopic chamber opened downward is installed in the telescopic box. A telescopic spring is connected to the telescopic chamber so that the long slider can slide, a telescopic spring is connected between the long slider and the upper inner wall of the telescopic chamber, and a rotation is performed on the lower end surface of the long slider. The wheel rods are fixedly connected, and the rotary wheel shaft extending in the front-rear direction is connected to the rear end surface of the rotary wheel rod so as to be rotatable, and the rotary wheel shaft is located on the rear side of the rotary wheel rod. The friction wheels are fixedly connected, and the long rods located on the rear side of the rotating wheel rods are fixedly connected to the lower end surface of the long slider, and the rear inner wall of the hot melt joining chamber is fixedly connected. A slide motor base fixedly connected to the lower end of the long rod is connected so as to be slidable, and a motor shaft extending in the front-rear direction is connected to the motor shaft so as to be rotatable in the hot melt joining chamber. Is connected so that power can be transmitted to a motor fixedly connected to the slide motor base , a gear located on the front side of the motor is fixedly connected to the motor shaft, and the motor shaft is fixedly connected to the motor shaft. The rotary feed device located between the gear and the friction wheel is installed.

Taking the front socket opening / closing device on the upper side as an example, the front socket opening / closing device includes a slide base fixedly connected to the upper inner wall of the hot melt joining chamber and located on the right side of the telescopic box, and the slide. The lower end surface of the table and the rack slider are connected so as to be slidable, and the return block located on the left side of the rack slider is connected to the lower end surface of the slide table so as to be slidable. A return spring is connected between the left end surface of the telescopic box and the right end surface of the telescopic box, a fixed rod is fixedly connected to the lower end surface of the rack slider, and the fixed rod is opened downward. A slide chamber is installed, and a telescopic rod is connected so as to slide in the slide chamber, a spring is connected between the telescopic rod and the upper inner wall of the slide chamber, and the telescopic rod is connected to the lower end of the telescopic rod. The racks connected so as to mesh with the gears are fixedly connected, the slide base and the swing rod are connected so as to be rotatable, and the place where the racks are connected so as to be rotatable is located above the rack slider. The slider rod and the middle end of the swing rod are connected by a hinge, the outer socket rod is connected to the right end surface of the slide base so that the outer socket rod can slide, and the outer socket rod can slide with the swing rod. The rotating blocks connected in this way are connected by a hinge, and an outer hot melt socket capable of hot melting the water supply pipe is connected to the lower end of the outer socket rod so that it can be removed.

Preferably, the spring and the slide chamber allow the rack to move up and down with the length slider, whereby the rack is in constant mesh with the gear.

Taking the upper rear socket opening / closing device as an example, the rear socket opening / closing device includes an elevating box fixedly connected to the upper inner wall of the hot melt joining chamber, and a slope chamber having a slope is installed in the elevating box. A position limiting hole opened upward is provided on the upper inner wall of the slope chamber, and a slide groove opened downward is formed on the lower inner wall of the slope chamber, and the lower end surface of the slope chamber is formed. The interlocking slider is connected so as to be slidable, the rotating rod is connected to the interlocking slider by a hinge, the other end of the rotating rod and the outer socket rod are connected by a hinge, and the interlocking slider is connected by a hinge. It is located on the upper side of the rotating block, and the place where the interlocking slider and the conrod are connected by a hinge is located on the right side where the rotating rod and the interlocking slider are connected by a hinge. The other end of the conrod and the slider are connected by a hinge, the slider and the lower inner wall of the slope chamber are connected so as to be slidable, and the rotating rod-shaped body is connected to the upper end surface of the slider so as to be rotatable. A torsion spring is installed at a position where the rotating rod-shaped body and the slider are connected so as to be rotatable, and the lower end surface of the slider extends to the outside of the lower end surface of the slope chamber, and the slider is described. An inner socket rod connected to the slide groove so as to slide is fixedly connected, and an inner hot melt socket is connected to the lower end of the inner socket rod so that the inner hot melt socket can be removed.

Preferably, the lower inner wall of the slope chamber is composed of a lower plane, an upper plane and a transient slope, which causes the inner hot melt socket to expand after being disengaged from the fitting so that the rotating rod is formed. The movement of the inner hot melt socket is restricted by being able to come into contact with the position limiting hole, and the torsion spring is harder than the return spring.

The rotary feed device includes a drive wheel that is fixedly connected to the motor shaft and is located on the front side of the gear, and eight pawl chambers are arranged in an annular shape in the drive wheel. A pawl is rotatably connected to the pawl chamber, and a tension spring is tied between one side of the pawl that is close to the center of symmetry and the inner wall of the pawl chamber that is close to the center. A rotary wheel located behind the friction wheel is fixedly connected to the rotary wheel shaft, and a rotary wheel chamber that is open to the rear and has a cylindrical shape is installed in the rotary wheel. The rotating wheel is formed so as to have eight rear openings and an annular tooth-shaped groove communicating with the rotating wheel chamber.

Preferably, when the drive wheel rotates, centrifugal force causes the pawl to rotate until it is located outside the pawl chamber and abuts the tooth profile groove, thereby causing the rowheel to rotate and interlock. When the drive wheels are in a stationary state, the rotary wheels rotate and cannot come into contact with the pawls, and therefore the drive wheels cannot be rotationally interlocked.

The beneficial effect of the present invention is: The present invention is an automatic hot melt joining equipment for handheld household PPR water supply pipes, and by installing a heating mold inside the equipment, there is a risk of injury to workers. After the number of pipes has decreased and the pipes have been heated, the pipe insertion and connecting device is automatically started to insert and connect the water supply pipe and the pipe joint heated by the composite rotary wheel without rotating them quickly, and the mold release device. And the pipe fitting insertion connection device are interlocked, and in the process of inserting and connecting the water supply pipe and the pipe joint, the mold release device interlocks the mold and automatically separates the water supply pipe and the pipe joint. By avoiding stopping the process of inserting and connecting the molds, the present invention can achieve automatic hot melt joining of household water supply pipes, thereby lowering the demand on the worker's experience. Effectively reduces the risk of injury to workers and at the same time increases the quality stability of hot melt bonding.

In order to explain the present invention in detail with reference to FIGS. 1 to 7 below and to explain the present invention in a convenient manner, the following directions are defined as follows: FIG. 1 is a front view of the apparatus of the present invention, and is described above and below. The left-right front-back direction and the up-down, left-right front-back direction of the self-projection relationship in FIG. 1 are the same.

FIG. 1 is a schematic diagram of the overall structure of an automatic hot-melt joining facility for a handheld household PPR water supply pipe of the present invention. FIG. 2 is a schematic structure diagram in the “AA” direction of FIG. FIG. 3 is a schematic structure diagram in the “BB” direction of FIG. FIG. 4 is a schematic structure diagram in the “CC” direction of FIG. FIG. 5 is a schematic structure diagram in the “DD” direction of FIG. FIG. 6 is an enlarged schematic diagram of the structure at “E” in FIG. FIG. 7 is a schematic diagram of the structurally enlarged structure at “F” in FIG.

The present invention is related to an automatic hot-melt joining facility for a hand-held household PPR water supply pipe, and is mainly applied to automatically hot-melt joining a household PPR water supply pipe. To further explain the present invention:
The automatic hot-melt bonding equipment for a hand-held household PPR water supply pipe described in the present invention includes a hot-melt bonding box 11, and a hot-melt bonding chamber 12 is installed in the hot-melt bonding box 11. Two elevating drive devices 101 capable of sandwiching a water supply pipe and joining the water supply pipe to a pipe joint are vertically symmetrically installed in the hot melt joining chamber 12, and are installed in the hot melt joining chamber 12. Are vertically symmetrical and are provided with two front socket opening / closing devices 102 located on the right side of the elevating drive device 101 so that the front socket opening / closing device 102 can slide into the hot melt bonding chamber 12. The rack slider 34 connected, the slider rod 35 hinged to the rack slider 34, the swing rod 33 hinged to the slider rod 35, and the rack slider 34 slide left and right to obtain the above. The front socket opening / closing operation is realized by rotating and interlocking the slider rod 35 and the swing rod 33, and the hot melt bonding chamber 12 is vertically symmetrical and is located on the right side of the front socket opening / closing device 102. Two rear socket opening / closing devices 103 are installed, and the rear socket opening / closing device 103 is connected to the interlocking slider 19 so as to be slidable into the hot melt bonding chamber 12 and to the interlocking slider 19 with a hinge. The conrod 16 and the slider 15 connected to the conrod 16 by a hinge and the interlocking slider 19 slide left and right to slide the slider 15 left and right through the conrod 16 to open and close the rear socket. Realized, the elevating drive device 101 is equipped with a rotary feed device 104 in which the inner ring can rotate and interlock the outer ring, but the outer ring cannot rotate and interlock the inner ring.

To be beneficial, the left and right inner walls of the hot melt joining chamber 12 are provided with feed ports 31 penetrating to the left and right, respectively, and the water supply pipes and pipe joints joined by the hot melt are the left and right feed ports, respectively. A grip 13 extends into the hot melt bonding chamber 12 through 31 and is fixedly connected to the lower end surface of the hot melt bonding chamber 12.

Hereinafter, the elevating drive device 101 will be described in detail according to the embodiment, and the elevating drive device 101 on the upper side will be taken as an example, and the elevating drive device 101 is a telescopic box fixedly connected to the upper inner wall of the hot melt joining chamber 12. A telescopic chamber 22 that includes 24 and is open downward is installed in the telescopic box 24, and a long slider 25 is connected so as to be slidable in the telescopic chamber 22, and the long slider 25 and the telescopic chamber are connected. A telescopic spring 23 is connected to the upper inner wall of the 22; a rotary wheel rod 26 is fixedly connected to the lower end surface of the long slider 25, and a front-rear direction is connected to the rear end surface of the rotary wheel rod 26. The rotary wheel shaft 28 extending to the above is connected so as to be rotatable, and the friction wheel 48 located on the rear side of the rotary wheel rod 26 is fixedly connected to the rotary wheel shaft 28, and the lower end surface of the long slider 25 is connected. A long rod 44 located on the rear side of the rotary wheel rod 26 was fixedly connected to the rear inner wall of the hot melt joining chamber 12, and was fixedly connected to the lower end of the long rod 44 on the rear inner wall of the hot melt joining chamber 12. The slide motor base 41 is connected so as to be slidable, the motor shaft 43 extending in the front-rear direction is connected to the hot melt joining chamber 12 so as to be rotatable, and the motor shaft 43 is fixed to the slide motor base 41. The motors 42 that are specifically connected are connected so that power can be transmitted, the gear 30 located on the front side of the motor 42 is fixedly connected to the motor shaft 43, and the gears are fixedly connected to the motor shaft 43. The rotary feed device 104 located between the 30 and the friction ring 48 is installed.

Hereinafter, the front socket opening / closing device 102 will be described in detail according to an embodiment, and the front socket opening / closing device 102 on the upper side is taken as an example, and the front socket opening / closing device 102 is fixedly connected to the upper inner wall of the hot melt joining chamber 12. In addition, the slide base 21 located on the right side of the telescopic box 24 is included, and the lower end surface of the slide base 21 and the rack slider 34 are connected so as to be slidable, and are connected to the lower end surface of the slide base 21. Is connected so that the return block 59 located on the left side of the rack slider 34 can slide, and the return spring 58 is connected between the left end surface of the return block 59 and the right end surface of the telescopic box 24. A fixed rod 47 is fixedly connected to the lower end surface of the rack slider 34, a slide chamber 46 opened downward is installed in the fixed rod 47, and a telescopic rod 32 is installed in the slide chamber 46. A rack 27 is connected so that the telescopic rod 32 can slide, a spring 45 is connected between the telescopic rod 32 and the upper inner wall of the slide chamber 46, and the lower end of the telescopic rod 32 is connected so as to mesh with the gear 30. Is fixedly connected, the slide base 21 and the swing rod 33 are rotatably connected, and the rotatably connected portion is located above the rack slider 34, and the slider rod 35 And the middle end of the swing rod 33 are connected by a hinge, the outer socket rod 36 is connected to the right end surface of the slide base 21 so as to be slidable, and the outer socket rod 36 can slide with the swing rod 33. The rotating blocks 37 thus connected are connected by a hinge, and the outer hot melt socket 38 capable of hot melting the water supply pipe is connected to the lower end of the outer socket rod 36 so that the outer hot melt socket 38 can be removed.

Beneficially, the spring 45 and the slide chamber 46 allow the rack 27 to move up and down with the length slider 25, whereby the rack 27 is in constant mesh with the gear 30.

Hereinafter, the rear socket opening / closing device 103 will be described in detail according to the embodiment, and the upper rear socket opening / closing device 103 is taken as an example, and the rear socket opening / closing device 103 is fixedly connected to the upper inner wall of the hot melt joining chamber 12. A slope chamber 14 including an elevating box 55 and having a slope is installed in the elevating box 55, and a position limiting hole 18 opened upward is installed on the upper inner wall of the slope chamber 14 to provide the slope chamber 14. A slide groove 17 opened downward is formed on the lower inner wall, and the lower end surface of the slope chamber 14 and the interlocking slider 19 are connected so as to be slidable, and the rotating rod 20 is attached to the interlocking slider 19. The other end of the rotating rod 20 and the outer socket rod 36 are connected by a hinge, and the place where the outer socket rod 36 is connected by a hinge is located above the rotating block 37, and the interlocking slider 19 and the outer socket rod 36 are connected. The place where the conrod 16 is connected by a hinge is located on the right side where the rotating rod 20 and the interlocking slider 19 are connected by a hinge, and the other end of the conrod 16 and the slider 15 are hinged. The slider 15 and the lower inner wall of the slope chamber 14 are connected so as to be slidable, and the rotating rod-shaped body 56 is connected to the upper end surface of the slider 15 so as to be rotatable, and is connected to the rotating rod-shaped body 56. A torsion spring 57 is installed at a position where the slider 15 is connected so as to be rotatable, and the lower end surface of the slider 15 extends to the outside of the lower end surface of the slope chamber 14 and has a slide groove. An inner socket rod 39 that is slidably connected to 17 is fixedly connected, and an inner hot melt socket 40 is connected to the lower end of the inner socket rod 39 so that it can be removed.

Beneficially, the lower inner wall of the slope chamber 14 is composed of a lower plane, an upper plane, and a transient slope, which causes the inner hot melt socket 40 to expand after being detached from the pipe joint. The rotating rod 56 can come into contact with the position limiting hole 18 to limit the movement of the inner hot melt socket 40, and the torsion spring 57 is harder than the return spring 58, thereby limiting the position of the rotating rod 56 and the position limiting spring 58. After the holes 18 come into contact with each other, the torsion spring 57 cannot push the rack slider 34 to return the entire device, and the outer hot melt socket 38 and the inner hot melt socket 40 are removed and replaced. Can be connected correspondingly to water pipes of different diameters.

Hereinafter, the rotary feed device 104 will be described in detail according to an embodiment, and the rotary feed device 104 includes a drive wheel 50 that is fixedly connected to the motor shaft 43 and is located on the front side of the gear 30. Eight pawl chambers 52 are arranged in an annular shape in the drive wheel 50, and the pawl 53 is connected so as to be rotatable in the pawl chamber 52, and one side of the pawl 53 close to the center of symmetry. A tension spring 54 is connected to the inner wall of the pawl chamber 52 on one side close to the center, and a rotary wheel 29 located on the rear side of the friction wheel 48 is fixedly attached to the rotary wheel shaft 28. A rotary wheel chamber 49 that is connected and is open rearward and has a cylindrical shape is installed in the rotary wheel 29, and the rotary wheel 29 is open eight rearward and the rotary wheel 29. The tooth profile 51 communicating with the chamber 49 is formed to be annular.

Beneficially, when the drive wheel 50 rotates, centrifugal force rotates the pawl 52 until it is located outside the pawl chamber 52 and abuts it in contact with the tooth profile 51, thereby causing the swivel wheel. 29 is rotationally interlocked, and when the drive wheel 50 is in a stationary state, the rotary wheel 29 rotates and cannot come into contact with the pawl 52, and therefore the drive wheel 50 cannot be rotationally interlocked.

Hereinafter, the steps of using the automatic hot melt joining equipment of the handheld household PPR water supply pipe of the present application will be described in detail together with FIGS. 1 to 7.

At the beginning, the outer hot melt socket 38 and the inner hot melt socket 40 on both the upper and lower sides are closed, the slider 15 is in the limit position on the right side, and the outer hot melt socket 38 and the inner hot melt socket 40 are operated when the power is turned on. Heat to temperature.

At the time of operation, the connected water supply pipe is inserted into the inner wall of the outer hot melt socket 38 through the left inlet 31 to be connected, and the connected pipe joint is inserted into the end face of the inner hot melt socket 40 through the right inlet 31. After the set time has passed, the motor 42 is started, the motor 42 rotates and interlocks the gear 30 with the motor shaft 43, the gear 30 moves the rack 27 to the left, and the rack 27 moves the telescopic rod. The rack slider 34 is moved and interlocked to the left by the 32 and the fixed rod 47, and the rack slider 34 rotates and interlocks the slider rod 35, the swing rod 33, and the rotation block 37 to the side away from the center of symmetry, and the rotation block. 37 moves the outer socket rod 36 and the outer hot melt socket 38 to the side away from the center of symmetry along the right end surface of the slide base 21, and the outer socket rod 36 moves the interlocking slider 19 to the left by the rotating rod 20. The interlocking slider 19 moves the slider 15 to the left by the conrod 16, and the slider 15 interlocks the inner hot melt socket 40 to move it out of the inner chamber of the pipe joint and move it away from the center of symmetry. At the same time, the motor 42 rotates and interlocks the drive wheels 50 with the motor shaft 43, the drive wheels 50 rotate and interlock the rotary wheels 29 with the pawl 53, and the water supply pipe heated by the motor 42 moves and interlocks to the right to form a pipe joint. The hot melt joining work is completed by inserting and connecting, and at the same time, the slider 15 moves to the limit position on the left side, and the rotating rod-shaped body 56 comes into contact with the position limiting hole 18 to the outside of the end face of the hot melt joining chamber 12. The worker can determine whether or not the hot melt joint is completed by observing whether or not the rotating rod-shaped body 56 extends to the outside of the hot melt joint chamber 12, and after the hot melt joint is completed, the worker can determine. Can remove the hot melt joining device from the water supply pipe along the water supply pipe, rotate the rotating rod-shaped body 56 to separate the rotating rod-shaped body 56 from the position limiting hole 18, and the return spring 58 is released by the return block 59 to the rack slider 34. Moves to the right and interlocks, thereby returning the entire device.

The beneficial effect of the present invention is: The present invention is an automatic hot melt joining equipment for handheld household PPR water supply pipes, and by installing a heating mold inside the equipment, there is a risk of injury to workers. After the number of pipes has decreased and the pipes have been heated, the pipe insertion and connecting device is automatically started to insert and connect the water supply pipe and the pipe joint heated by the composite rotary wheel without rotating them quickly, and the mold release device. And the pipe fitting insertion connection device are interlocked, and in the process of inserting and connecting the water supply pipe and the pipe joint, the mold release device interlocks the mold and automatically separates the water supply pipe and the pipe joint. By avoiding stopping the process of inserting and connecting the molds, the present invention can achieve automatic hot melt joining of household water supply pipes, thereby lowering the demand on the worker's experience. Effectively reduces the risk of injury to workers and at the same time increases the quality stability of hot melt bonding.

By the above method, those skilled in the art can make various changes based on the operation mode within the scope of the present invention.

Claims (9)

In front view, including hot melt junction box,
A hot-melt bonding chamber is installed in the hot-melt bonding box, and two elevating drive devices capable of sandwiching a water supply pipe and joining the water supply pipe to a pipe joint are up and down in the hot-melt bonding chamber. Two front socket switchgear, which are installed symmetrically, are vertically symmetrical in the hot melt bonding chamber, and are located on the right side of the elevating drive device, are installed, and the front socket switchgear is the hot. A rack slider connected so as to slide into a melt joining chamber, a slider rod hinged to the rack slider, a swing rod hinged to the slider rod, and the rack slider slide left and right. By rotating and interlocking the slider rod and the swing rod, the front socket can be opened and closed.
Two rear socket opening / closing devices that are vertically symmetrical and located on the right side of the front socket opening / closing device are installed in the hot melt connecting chamber, and the rear socket opening / closing device is inside the hot melt joining chamber. An interlocking slider connected so as to be slidable, a connecting rod connected to the interlocking slider with a hinge, a slider connected to the conrod with a hinge, and the interlocking slider sliding left and right to pass the slider through the connecting rod. Slides to the left and right to realize the opening and closing operation of the rear socket, and in the elevating drive device, there is a rotary feed device in which the inner ring can rotate and interlock the outer ring, but the outer ring cannot rotate and interlock the inner ring. An automatic hot-melt joining facility for hand-held household PPR water supply pipes, which is characterized by being installed. Claim 1 is characterized in that feeding ports penetrating left and right are provided on the left and right inner walls of the hot melt joining chamber, and grips are fixedly connected to the lower end surface of the hot melt joining chamber. Automatic hot-melt joining equipment for hand-held household PPR water pipes described in. Taking the elevating drive device on the upper side as an example, the elevating drive device includes a telescopic box fixedly connected to the upper inner wall of the hot melt joining chamber, and a telescopic chamber opened downward is installed in the telescopic box. A telescopic spring is connected to the telescopic chamber so that the long slider can slide, a telescopic spring is connected between the long slider and the upper inner wall of the telescopic chamber, and a rotation is performed on the lower end surface of the long slider. The wheel rods are fixedly connected, and the rotary wheel shaft extending in the front-rear direction is connected to the rear end surface of the rotary wheel rod so as to be rotatable, and the rotary wheel shaft is located on the rear side of the rotary wheel rod. The friction wheels are fixedly connected, and the long rods located on the rear side of the rotating wheel rods are fixedly connected to the lower end surface of the long slider, and the rear inner wall of the hot melt joining chamber is fixedly connected. A slide motor base fixedly connected to the lower end of the long rod is connected so as to be slidable, and a motor shaft extending in the front-rear direction is connected to the motor shaft so as to be rotatable in the hot melt joining chamber. Is connected so that power can be transmitted to a motor fixedly connected to the slide carrier, a gear located on the front side of the motor is fixedly connected to the motor shaft, and the motor shaft is fixedly connected to the motor shaft. The automatic hot melt joining equipment for a handheld household PPR water supply pipe according to claim 1, wherein the rotary feeding device located between the gear and the friction wheel is installed. .. Taking the front socket opening / closing device on the upper side as an example, the front socket opening / closing device includes a slide base fixedly connected to the upper inner wall of the hot melt joining chamber and located on the right side of the telescopic box, and the slide. The lower end surface of the table and the rack slider are connected so as to be slidable, and the return block located on the left side of the rack slider is connected to the lower end surface of the slide table so as to be slidable. A return spring is connected between the left end surface of the telescopic box and the right end surface of the telescopic box, and a fixing rod is fixedly connected to the lower end surface of the rack slider.
A slide chamber opened downward is installed in the fixed rod, the telescopic rod is connected so as to be slidable in the slide chamber, and a spring is provided between the telescopic rod and the upper inner wall of the slide chamber. A rack that is connected and is connected so as to mesh with the gear is fixedly connected to the lower end of the telescopic rod, and the slide base and the swing rod are connected so as to be rotatable and connected so as to be rotatable. However, it is located above the rack slider, the slider rod and the middle end of the swing rod are connected by a hinge, and the outer socket rod is connected to the right end surface of the slide base so that the outer socket rod can slide. A rotating block that is slidably connected to the swing rod is connected to the outer socket rod by a hinge, and an outer hot melt socket that can hot melt the water supply pipe can be removed from the lower end of the outer socket rod. The automatic hot melt joining equipment for a handheld household PPR water supply pipe according to claim 1 or 3, characterized in that the rod is connected to the rod. The automatic hot melt joining facility for a handheld household PPR water supply pipe according to claim 4, wherein the rack can be moved up and down together with the long slider by the spring and the slide chamber. Taking the upper rear socket opening / closing device as an example, the rear socket opening / closing device includes an elevating box fixedly connected to the upper inner wall of the hot melt joining chamber, and a slope chamber having a slope is installed in the elevating box. A position limiting hole opened upward is provided on the upper inner wall of the slope chamber, and a slide groove opened downward is formed on the lower inner wall of the slope chamber, and the lower end surface of the slope chamber is formed. The interlocking slider is connected so as to be slidable, the rotating rod is connected to the interlocking slider by a hinge, the other end of the rotating rod and the outer socket rod are connected by a hinge, and are connected by a hinge. It is located on the upper side of the rotating block, and the place where the interlocking slider and the conrod are connected by a hinge is located on the right side where the rotating rod and the interlocking slider are connected by a hinge. The other end of the conrod and the slider are connected by a hinge, the slider and the lower inner wall of the slope chamber are connected so as to be slidable, and the rotary rod-shaped body is connected to the upper end surface of the slider so as to be rotatable. A torsion spring is installed at a place where the rotating rod-shaped body and the slider are connected so as to be rotatable, and the lower end surface of the slider extends to the outside of the lower end surface of the slope chamber, and the slider is described. A claim characterized in that an inner socket rod connected to a slide groove so as to be slidable is fixedly connected, and an inner hot melt socket is connected to the lower end of the inner socket rod so as to be removable. The automatic hot melt joining equipment for the handheld household PPR water supply pipe according to claim 1 or 3. The lower inner wall of the slope chamber is composed of a lower plane, an upper plane, and a transient slope, whereby the inner hot melt socket expands after being separated from the pipe joint, and the rotating rod-shaped body limits the position. The automatic hotning of the handheld household PPR water supply pipe according to claim 6, wherein the movement of the inner hot melt socket is restricted by being able to come into contact with the hole, and the torsion spring is harder than the return spring. Melt bonding equipment. The rotary feed device includes a drive wheel that is fixedly connected to the motor shaft and is located on the front side of the gear, and eight pawl chambers are arranged in an annular shape in the drive wheel. A pawl is rotatably connected to the pawl chamber, and a tension spring is tied between one side of the pawl that is close to the center of symmetry and the inner wall of the pawl chamber that is close to the center. A rotary wheel located behind the friction wheel is fixedly connected to the rotary wheel shaft, and a rotary wheel chamber that is open to the rear and has a cylindrical shape is installed in the rotary wheel. The first or third aspect of the rotary wheel is characterized in that the rotary wheel has eight openings at the rear and the tooth-shaped groove communicating with the rotary wheel chamber is formed to be annular. Automatic hot melt joining equipment for the handheld household PPR water supply pipes described. When the drive wheels rotate, centrifugal force rotates the pawls until they are located outside the pawl chamber and abuts them in contact with the tooth profile, thereby causing the rotary wheels to rotate and interlock, causing the drive wheels to rotate. The automatic hot melt joining facility for a handheld household PPR water supply pipe according to claim 8, wherein the rotating wheel rotates and cannot come into contact with the pawl when in a stationary state.

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