Disclosure of Invention
The invention aims to solve the technical problem of providing a cutting device for tubular plastic parts, which can solve the problems of length adjustment and cutting of tubular plastic parts with different diameters and improve the cutting efficiency.
The invention is realized by the following technical scheme.
The invention relates to a cutting device for tubular plastic parts, which comprises a shell, wherein a collecting cavity for taking out cut plastic parts and connecting the lower end of the collecting cavity with the outside is arranged in the shell, a driving mechanism for providing power and driving the plastic parts to move is arranged in the left end wall of the collecting cavity, a control mechanism for controlling a machine to work is arranged in the right end wall of the collecting cavity, a working cavity with the left end connected with the outside is also arranged in the shell, an adjusting mechanism capable of adjusting the length of the cut plastic parts is arranged in the left upper end wall of the working cavity, and a working mechanism for clamping and cutting the plastic parts is arranged in the working cavity;
the working mechanism comprises a lifting cavity, wherein the lower end of the upper end wall of the working cavity is communicated with the working cavity, a lifting plate is arranged in the lifting cavity, a lifting plate cavity is arranged in the lifting plate, the lower end of the lifting plate is communicated with the working cavity, a lower pressing plate is arranged in the lifting plate cavity, two supporting springs for connecting the lower end surface of the lifting plate with the lower end wall of the lifting cavity are arranged in the lifting cavity, a cutting block is arranged in the working cavity, the lower end of the cutting block is communicated with the working cavity, a working block is arranged in the cutting block cavity, the upper end surface of the working block is fixedly connected with a lower pressing block, the upper end of the lower pressing block penetrates through the upper end wall of the cutting block cavity and is fixedly connected with the lower end surface of the lower pressing plate, a working block cavity is arranged in the working block, the right end wall of the working block cavity is fixedly connected, the left end of the working shaft is fixedly connected with a blade, the lower end of the blade penetrates through the lower end wall of the working block cavity and is positioned in the working cavity, a pressing cavity is arranged in the upper end wall of the left side of the working cavity, the lower end of the pressing cavity is communicated with the working cavity, a pressing block is arranged in the pressing cavity, the upper end of the pressing block is positioned in the pressing cavity, the lower end of the pressing block is positioned in the working cavity, a pressing plate is arranged in the pressing cavity, two pressing springs for connecting the lower end face of the pressing plate and the upper end wall of the pressing block are arranged in the pressing cavity, and the upper end face of the pressing block is fixedly connected with a fixing plate, the upper;
the driving mechanism is started, the driving mechanism drives the plastic part to move rightwards, the required cutting length can be adjusted through the adjusting mechanism, the plastic part moves rightwards to the contact control mechanism, and the control mechanism controls the working mechanism to work, so that the cutting work of the tubular plastic part is completed.
Further, the driving mechanism comprises a driving cavity positioned in the left end wall of the collecting cavity, the lower end wall of the driving cavity is fixedly connected with a driving motor, the driving motor is in power connection with a driving shaft, the upper end of the driving shaft penetrates through the upper end wall of the driving cavity, the lower end of the driving shaft is fixedly connected with a driving bevel gear, the right side of the driving motor is provided with a supporting block fixedly connected with the lower end wall of the driving cavity, the supporting block is rotatably connected with a driving shaft, the right end of the driving shaft penetrates through the right end wall of the driving cavity, the left end of the driving shaft is fixedly connected with a driving bevel gear meshed with the driving bevel gear, the upper end of the driving shaft is fixedly connected with a rotating bevel gear, the front end wall of the driving cavity is rotatably connected with a conveying shaft, the rear end of the conveying, the right side of the conveying shaft is provided with a driven belt wheel shaft which is rotatably connected to the front end wall of the driving cavity, the front end of the driven belt wheel shaft is fixedly connected with a driven belt wheel, and a conveying belt which is connected with the driven belt wheel and the conveying belt wheel is arranged on the driven belt wheel.
Further, the control mechanism comprises a control cavity positioned in the right end wall of the collection cavity, the lower end wall of the control cavity is rotatably connected with a control shaft, the lower end of the control shaft is fixedly connected with a driven bevel gear, the control cavity is internally provided with a transmission bevel gear which is fixedly connected with the driving shaft positioned in the control cavity and is meshed with the driven bevel gear, the upper end of the control shaft is fixedly connected with a lifting friction wheel mechanism at the lower side, the lifting friction wheel mechanism at the lower side is internally provided with a lifting friction wheel cavity, the lifting friction wheel cavity is internally provided with an arc-shaped block, the right end of the control shaft is provided with a rotating shaft which is fixedly connected with the lower end wall of the control cavity, the lower end of the rotating shaft is fixedly connected with a rotating gear which can be meshed with the lifting friction wheel mechanism at the lower, the rear end of the lower shift shaft is fixedly connected with a winding bevel gear engaged with the rotating bevel gear, the front end of the lower shift shaft is fixedly connected with a lower shift gear, a fixed rack which is engaged with the right end of the down-moving gear and the upper end of which penetrates through the upper end wall of the control cavity and is fixedly connected with the lifting plate is arranged in the control cavity, a moving cavity is arranged in the upper end wall of the control cavity, a moving block is arranged in the moving cavity, a return spring for connecting the right end surface of the moving block with the right end wall of the lifting friction wheel mechanism on the lower side is arranged in the moving cavity, the left end surface of the moving block is fixedly connected with a connecting plate, the left end of the connecting plate penetrates through the left end wall of the lifting friction wheel mechanism on the lower side and is positioned in the working cavity, the left end face of the connecting plate is fixedly connected with a translation stop block, and the right end face of the moving block is fixedly connected with a reset rope, wherein the right end of the reset rope penetrates through the right end wall of the moving block and is fixedly connected with the arc-shaped block in the lifting friction wheel mechanism on the lower side.
Further, the adjusting mechanism comprises an adjusting cavity positioned in the upper end wall of the pressing cavity, the lower end wall of the adjusting cavity is rotatably connected with a transmission shaft, the upper end of the transmission shaft is fixedly connected with a transmission gear, the adjusting cavity is internally provided with a driving gear which is fixedly connected with the driving shaft positioned in the adjusting cavity and meshed with the transmission gear, the upper end of the driving gear positioned in the adjusting cavity is fixedly connected with a centrifugal mechanism, the centrifugal mechanism is internally provided with four centrifugal cavities, the openings of the centrifugal cavities are outwards communicated with the adjusting cavity, centrifugal blocks are arranged in the centrifugal cavities, centrifugal springs are arranged in the centrifugal cavities and used for connecting one ends of the centrifugal blocks, which are close to the driving gear, and the centrifugal cavities are close to the end wall of the driving gear, the upper end wall of the adjusting cavity is fixedly connected with a fixed block, the inner part of the translation block cavity is provided with two horizontal springs for connecting the right end face of the translation block and the left end wall of the translation block cavity, the inner part of the lower end wall of the adjustment cavity is provided with a translation cavity, the upper end wall of the adjustment cavity is rotatably connected with a driven shaft with the lower end penetrating through the lower end wall of the adjustment cavity and positioned in the translation cavity, the upper end of the driven shaft is fixedly connected with a lifting friction wheel mechanism at the upper side meshed with the transmission gear, the lower end of the driven shaft is fixedly connected with an eccentric wheel positioned in the translation cavity, the inner part of the translation cavity is provided with a control block, the inner part of the translation cavity is provided with two control springs for connecting the right end face of the control block and the right end wall of the translation cavity, the right end face of the control block is fixedly connected with a control rod with, the pressing cavity is internally provided with a pressing block, the pressing cavity is internally provided with two vertical springs which are connected with the lower end face of the pressing block and the lower end wall of the pressing cavity, the lower end face of the fixedly connected end face of the pressing block penetrates through the lower end wall of the pressing cavity, the upper end wall of the adjusting cavity and the control rope fixedly connected with the left end face of the translation block, the pressing cavity is internally provided with two vertical triangular blocks, the upper end of the pressing cavity penetrates through the upper end wall of the pressing cavity and is located outside, the right end wall of the pressing cavity is internally provided with a horizontal cavity, a pressing baffle is arranged in the horizontal cavity, the right end face of the pressing baffle and the right end wall of the horizontal cavity are internally provided with two pressing springs which are connected with the right end face of the pressing baffle, and the left end face.
Further, the hold-down spring is initially in a stretched state, the horizontal spring is initially in a relaxed state, the vertical spring is initially in a compressed state, the hold-down spring is initially in a relaxed state, the control spring is initially in a compressed state, the support spring is initially in a compressed state, the return spring is initially in a relaxed state, and the centrifugal spring is initially in a relaxed state.
Further, the elastic force of the supporting spring is larger than the gravity of the adjusting mechanism.
Further, the translation stop block is pushed by the plastic piece to be larger than the elastic force of the return spring.
Further, the control cord is initially in tension, the lift cord is initially in tension, and the return cord is initially in tension.
Further, when the horizontal triangular block is pushed to the leftmost side, the lifting rope drives the lifting friction wheel mechanism on the upper side to descend to just not be meshed with the transmission gear, and when the translation stop block is pushed to the leftmost side, the reset rope enables the lifting friction wheel mechanism on the lower side to descend to just be meshed with the rotating gear.
The invention has the beneficial effects that: the device simple structure, the simple operation, the device can be automatically to the tubulose mould the piece and cut the processing, can cut the tubulose of different specifications moreover and mould the piece, can also adjust the cutting mould a size, has simplified the tubulose and has moulded the process of piece cutting, through the transmission of machinery, has improved work efficiency.
Detailed Description
The invention will now be described in detail with reference to fig. 1-6, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The cutting device for tubular plastic parts, which is described with reference to fig. 1-6, includes a casing 10, a collecting chamber 79 for taking out cut plastic parts and connecting the lower end to the outside is provided in the casing 10, a driving mechanism 93 for providing power and driving the plastic parts to move is provided in the left end wall of the collecting chamber 79, a control mechanism 76 for controlling the machine to work is provided in the right end wall of the collecting chamber 79, a working chamber 18 for connecting the left end to the outside is further provided in the casing 10, an adjusting mechanism 31 for adjusting the length of the cut plastic parts is provided in the left upper end wall of the working chamber 18, a working mechanism 94 for clamping and cutting the plastic parts is provided in the working chamber 18, the working mechanism 94 includes a lifting chamber 53 for connecting the lower end of the upper end wall of the working chamber 18 to the working chamber 18, a lifting plate 52 is provided in the lifting chamber 53, a lifting plate chamber 54 for connecting the lower end to the working chamber 18 is provided in the lifting plate, a lower pressing plate 97 is arranged in the lifting plate cavity 54, two supporting springs 68 which are used for connecting the lower end face of the lifting plate 52 and the lower end wall of the lifting cavity 53 are arranged in the lifting cavity 53, a cutting block 55 is arranged in the working cavity 18, a cutting block cavity 56 with the lower end communicated with the working cavity 18 is arranged in the cutting block 55, a working block 57 is arranged in the cutting block cavity 56, the upper end face of the working block 57 is fixedly connected with a lower pressing block 59 with the upper end penetrating through the upper end wall of the cutting block cavity 56 and fixedly connected with the lower end face of the lower pressing plate 97, a working block cavity 95 is arranged in the working block 57, the right end wall of the working block cavity 95 is fixedly connected with a working motor 61, the working motor 61 is in power connection with a working shaft 60, the left end of the working shaft 60 is fixedly connected with a cutter blade 58 with the lower end penetrating through the lower end wall of the working block cavity 95 and positioned in the working cavity 18, a compressing cavity 19 with the lower end, the upper end of the compressing cavity 19 is provided with a compressing block 17, the lower end of the compressing cavity 19 is provided with a working cavity 18, the compressing cavity 19 is provided with a compressing plate 99, the compressing cavity 19 is provided with two compressing springs 20, the two compressing springs are used for connecting the lower end face of the compressing plate 99 with the upper end wall of the compressing block 17, the upper end face of the compressing block 17 is fixedly connected with the upper end of the compressing cavity 19, the upper end face of the compressing cavity 19 is penetrated through the fixing plate 51, the fixing plate is fixedly connected with the lower end face of the lifting plate 52 in the lifting cavity 53, when cutting is needed, the driving mechanism 93 is started, the driving mechanism 93 drives the plastic part to move rightwards, the required cutting length can be adjusted through the adjusting mechanism 31 at the moment, the plastic part moves rightwards to the contact control mechanism 76, and the control mechanism 76 controls.
Advantageously, the driving mechanism 93 comprises a driving chamber 11 located in the left end wall of the collecting chamber 79, the lower end wall of the driving chamber 11 is fixedly connected with a driving motor 84, the driving motor 84 is in power connection with a driving shaft 12 with the upper end penetrating through the upper end wall of the driving chamber 11, the lower end of the driving shaft 12 is fixedly connected with a driving bevel gear 13, the right side of the driving motor 84 is provided with a supporting block 96 fixedly connected to the lower end wall of the driving chamber 11, the supporting block 96 is rotatably connected with a driving shaft 82 with the right end penetrating through the right end wall of the driving chamber 11, the left end of the driving shaft 82 is fixedly connected with a driving bevel gear 83 engaged with the driving bevel gear 13, the upper end of the driving shaft 12 is fixedly connected with a rotating bevel gear 85, the front end wall of the driving chamber 11 is rotatably connected with a conveying shaft 16, and the rear end of the conveying, the front end of the conveying shaft 16 is fixedly connected with a conveying belt wheel 15, the right side of the conveying shaft 16 is provided with a driven belt wheel shaft 81 which is rotatably connected to the front end wall of the driving cavity 11, the front end of the driven belt wheel shaft 81 is fixedly connected with a driven belt wheel 80, and the driven belt wheel 80 is provided with a conveying belt 14 which is connected with the driven belt wheel 80 and the conveying belt wheel 15.
Advantageously, the control mechanism 76 comprises a control chamber 78 located in the right end wall of the collection chamber 79, a control shaft 77 is rotatably connected to the lower end wall of the control chamber 78, a driven bevel gear 74 is fixedly connected to the lower end of the control shaft 77, a transmission bevel gear 75 which is fixedly connected to the drive shaft 82 located in the control chamber 78 and is engaged with the driven bevel gear 74 is arranged in the control chamber 78, a lower lifting friction wheel mechanism 44 is fixedly connected to the upper end of the control shaft 77, a lifting friction wheel chamber 89 is arranged in the lifting friction wheel mechanism 44 on the lower side, an arc-shaped block 46 is arranged in the lifting friction wheel chamber 89, a rotating shaft 72 fixedly connected to the lower end wall of the control chamber 78 is arranged at the right end of the control shaft 77, a rotating gear 73 which can be engaged with the lower lifting friction wheel mechanism 44 is fixedly connected to the lower end of the rotating shaft 72, a lower shift shaft 71 is rotatably connected to the front end wall of the control cavity 78, a winding bevel gear 87 engaged with the rotating bevel gear 70 is fixedly connected to the rear end of the lower shift shaft 71, a lower shift gear 69 is fixedly connected to the front end of the lower shift shaft 71, a fixed rack 67 engaged with the right end of the lower shift gear 69 and fixedly connected with the lifting plate 52 by the upper end wall of the control cavity 78 is arranged in the control cavity 78, a shift cavity 22 is arranged in the upper end wall of the control cavity 78, a shift block 64 is arranged in the shift cavity 22, a return spring 65 connecting the right end surface of the shift block 64 and the right end wall of the lifting friction wheel mechanism 44 at the lower side is arranged in the shift cavity 22, a connecting plate 63 having the left end penetrating the left end wall of the lifting friction wheel mechanism 44 at the lower side and positioned in the working cavity 18 is fixedly connected to the left end surface of the connecting plate 63, the right end face of the moving block 64 is fixedly connected with a reset rope 66, the right end of which penetrates through the right end wall of the moving block 64 and is fixedly connected with the inner arc-shaped block 46 of the lifting friction wheel mechanism 44 on the lower side.
Advantageously, the adjusting mechanism 31 includes an adjusting chamber 25 located in the upper end wall of the compacting chamber 19, a transmission shaft 43 is rotatably connected to the lower end wall of the adjusting chamber 25, a transmission gear 42 is fixedly connected to the upper end of the transmission shaft 43, a driving gear 23 fixedly connected to the driving shaft 12 located in the adjusting chamber 25 and engaged with the transmission gear 42 is disposed in the adjusting chamber 25, a centrifugal mechanism 24 is fixedly connected to the upper end of the driving gear 23 located in the adjusting chamber 25, four centrifugal chambers 92 are disposed in the centrifugal mechanism 24 and open to communicate with the adjusting chamber 25, a centrifugal block 90 is disposed in the centrifugal chamber 92, a centrifugal spring 91 connecting one end of the centrifugal block 90 close to the driving gear 23 and one end of the centrifugal chamber 92 close to the end wall of the driving gear 23 is disposed in the centrifugal chamber 92, and a fixed block 26 is fixedly connected to the upper end wall of the adjusting chamber, be equipped with translation piece chamber 30 in fixed block 26, be equipped with translation piece 28 in translation piece chamber 30, be equipped with in translation piece chamber 30 and connect translation piece 28 right-hand member face with two horizontal spring 27 of translation piece chamber 30 left end wall, be equipped with translation chamber 21 in the adjustment chamber 25 lower end wall, adjustment chamber 25 upper end wall rotates and is connected with the lower extreme and runs through adjustment chamber 25 lower end wall just is located driven shaft 45 in translation chamber 21, driven shaft 45 upper end fixedly connected with the lifting friction wheel mechanism 44 of the upside of drive gear 42 meshing, driven shaft 45 lower extreme fixedly connected with is located eccentric wheel 47 in translation chamber 21, be equipped with control block 48 in translation chamber 21, be equipped with in the translation chamber 21 and connect control block 48 right-hand member face with two control spring 50 of translation chamber 21 right-hand member wall, control block 48 right-hand member face fixedly connected with right-hand member runs through translation chamber 21 right-hand member wall and with in the working chamber 18 cutting piece 55, a pressing cavity 35 is arranged in the upper end wall of the adjusting cavity 25, a pressing block 36 is arranged in the pressing cavity 35, a control rope 29 is arranged in the pressing cavity 35 and used for connecting the lower end surface of the pressing block 36 with the lower end wall of the pressing cavity 35, the lower end surface of the pressing block 36 is fixedly connected with the lower end surface of the pressing cavity 35, the upper end wall of the adjusting cavity 25 and fixedly connected with the left end surface of the translation block 28, a vertical triangular block 34 is arranged in the pressing cavity 35, the upper end of the pressing cavity 35 penetrates through the upper end wall of the pressing cavity and is located outside, a horizontal cavity 37 is arranged in the right end wall of the pressing cavity 35, a pressing baffle 38 is arranged in the horizontal cavity 37, two pressing springs 39 are arranged in the horizontal cavity 37 and used for connecting the right end surface of the pressing baffle 38 with the right end wall of the horizontal cavity 37, and the left end surface of the pressing baffle 38 fixedly connected with the left end wall of the horizontal cavity 37 and is located in the pressing cavity 35 Block 33.
Advantageously, the hold-down spring 20 is initially in tension, the horizontal spring 27 is initially in relaxed state, the vertical spring 32 is initially in compression, the hold-down spring 39 is initially in relaxed state, the control spring 50 is initially in compression, the support spring 68 is initially in compression, the return spring 65 is initially in relaxed state and the centrifugal spring 91 is initially in relaxed state.
Advantageously, the elastic force of the support spring 68 is greater than the weight of the adjusting mechanism 31 itself.
Advantageously, the translation stop 62 is pushed by the plastic member with a greater force than the return spring 65.
Beneficially, control cord 29 is initially under tension, lift cord 40 is initially under tension, and return cord 66 is initially under tension.
Advantageously, when the horizontal triangle block 33 is pushed to the leftmost side, the lifting rope 40 drives the upper lifting friction wheel mechanism 44 to descend just short of engaging with the transmission gear 42, and when the translation stopper 62 is pushed to the leftmost side, the reset rope 66 drives the lower lifting friction wheel mechanism 44 to descend just short of engaging with the rotation gear 73.
Sequence of mechanical actions of the whole device:
1: placing a tubular plastic part on a conveyer belt 14, starting a motor driving motor 84, driving the driving motor 84 to drive a driving shaft 12 to rotate so as to drive a rotating bevel gear 85 to rotate, driving a winding gear 86 to rotate by the rotating bevel gear 85 so as to drive a conveyer shaft 16 to rotate so as to drive a conveyer belt wheel 15 to rotate, driving the conveyer belt wheel 15 to rotate so as to drive a driven belt wheel 80 and a driven belt wheel shaft 81 to rotate through the conveyer belt 14, driving the conveyer belt 14 at the upper end of the conveyer belt wheel 15 to move rightwards, and driving the tubular plastic part to move rightwards by the conveyer belt 14;
2: the driving shaft 12 rotates to drive the centrifugal mechanism 24 to rotate, the centrifugal block 90 in the centrifugal mechanism 24 is subject to the action of centrifugal force to move the centrifugal spring 91 in the direction away from the driving gear 23 to be stretched, the centrifugal block 90 moves to push the translation block 28 to move rightwards, the translation block 28 tensions the control rope 29, so that the pressing block 36 descends the vertical spring 32 to be compressed, the driving shaft 12 rotates to drive the driving gear 23 to rotate, so as to drive the transmission gear 42 and the transmission shaft 43 to rotate, so as to drive the lifting friction wheel mechanism 44 and the driven shaft 45 on the upper side to rotate, the driven shaft 45 drives the eccentric wheel 47 to rotate, under the action of the elastic force of the compressed control spring 50, the control block 48 horizontally reciprocates, so as to drive the control rod 49 and the cutting block 55 to horizontally reciprocate, when the cutting block 55 moves to a proper position, the vertical triangular block 34 is manually pressed, thereby driving the pressing baffle plate 38 to move rightwards and compressing the pressing spring 39, moving the pressing baffle plate 38 rightwards to loosen the lifting rope 40 to enable the lifting friction wheel mechanism 44 on the upper side to descend and not to be meshed with the transmission gear 42, so that the lifting friction wheel mechanism 44 on the upper side and the driven shaft 45 are not rotated, the eccentric wheel 47 is not rotated, the control block 48 and the cutting block 55 are not moved, and the control of the length of the cut tubular plastic part is finished;
3: the conveyer belt 14 drives the tubular plastic part to move rightwards continuously, the tubular plastic part contacts the translational stop block 62 and pushes the translational stop block 62 rightwards, the translational stop block 62 moves rightwards to drive the connecting plate 63 and the moving block 64 to move rightwards and compress the return spring 65, the connecting plate 63 moves rightwards to release the return rope 66, the lifting friction wheel mechanism 44 on the lower side moves downwards under the action of self gravity to be meshed with the rotating gear 73, the driving shaft 12 drives the driving bevel gear 13 to rotate, the driving shaft 83 is driven to rotate, the driving shaft 82 is driven to rotate, the driving bevel gear 75 is driven to rotate, the driven bevel gear 74 is driven to rotate, the control shaft 77 is driven to rotate, the lifting friction wheel mechanism 44 on the lower side is meshed with the rotating gear 73 at the moment, the control shaft 77 drives the lifting friction wheel mechanism 44 on the lower side to rotate, the rotating shaft 72 drives the rotating bevel gear 70 to rotate, so as to drive the winding bevel gear 87 to rotate, so as to drive the downward moving shaft 71 to rotate, the downward moving shaft 71 drives the downward moving gear 69 to rotate, so as to drive the fixed rack 67 to move downward, the fixed rack 67 moves downward to drive the lifting plate 52 to move downward, because the fixed plate 51 is fixedly connected to the lifting plate 52 and the lower press plate 97 has a gap with the upper end wall of the lifting plate cavity 54 in the lifting plate 52, the lifting plate 52 drives the fixed plate 51 to move downward, so as to drive the press plate 99 to move downward, so as to drive the press block 17 to move downward to press the tubular plastic part, when the tubular plastic part is pressed, the press plate 99 continues to move downward, at this time, the press spring 20 is compressed into the tubular plastic part, the lifting plate 52 drives the lower press plate 97 to move downward, the lower press block 97 drives the lower press block 59 to move downward, so as to, thereby driving the working motor 61, the working shaft 60 and the blade 58 to move downwards, at the moment, the working motor 61 drives the working shaft 60 to rotate, the working shaft 60 drives the blade 58 to rotate, so that the blade 58 rotates while moving downwards to complete the cutting of the tubular plastic part;
4: the tubular plastic part falls into the collection cavity 79 after being cut, the translation stop block 62 is not abutted to the right side any more, under the action of the elastic force of the compressed return spring 65, the moving block 64 and the connecting plate 63 move leftwards, so that the translation stop block 62 is pushed to move leftwards to restore the initial position, the moving block 64 moves leftwards to tighten the return rope 66, the lifting friction wheel mechanism 44 on the lower side is lifted and is not meshed with the rotating gear 73, the rotating gear 73 is not driven to rotate any more, the rotating shaft 72 does not rotate any more, the lifting plate 52 is lifted to the original position under the action of the elastic force of the compressed support spring 68, so that the fixed plate 51, the pressing plate 99, the pressing block 17, the lower pressing plate 97, the lower pressing block 59 and the working block 57 are driven to return to the original position, the pressing block 17 is not fixed to the tubular plastic part, the tubular plastic part continues to advance under the drive of the transport belt 14 for next, the centrifugal mechanism 24 does not rotate any more, the centrifugal block 90 in the centrifugal mechanism 24 is not subjected to centrifugal force any more, the centrifugal block moves to the side close to the driving gear 23 to return to the original position under the action of the elastic force of the stretched centrifugal spring 91, the centrifugal block 90 does not push the translation block 28 any more, the translation block 28 moves to the left to return to the original position under the action of the elastic force of the compressed horizontal spring 27, the translation block 28 moves to the left to loosen the control rope 29, the pressing block 36 moves to the upward to push the vertical triangular block 34 to move upward to no more abut against the horizontal triangular block 33 under the action of the elastic force of the compressed vertical spring 32, the horizontal cavity 37 and the horizontal triangular block 33 move to the left to return to the original position under the action of the elastic force of the compressed pressing spring 39, the pressing baffle plate 38 moves to the left to tighten the lifting rope 40, and the lifting friction wheel mechanism, the device completes the reset.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.