A production device and method for PVC thermoplastic elastomer cable

Abstract

The present invention belongs to the technical field of granulation processing, and specifically relates to a production device and method for PVC thermoplastic elastomer cable; when producing particles of different sizes, it is impossible to replace a suitable screening plate in time, so that it is difficult for the device to screen a number of particles, resulting in particles of different sizes being easily mixed together, reducing the qualified rate of production, thereby reducing the efficiency of granulation; comprising a bottom plate, the bottom plate is provided with an extrusion device, and a feed port is installed on the top surface of the extrusion device; a driving motor is provided on one end of the extrusion device, and a cooling device and a pelletizing device are provided on the other end, characterized in that: a forward and backward re-screening assembly is provided on the pelletizing device; through a convenient and detachable joint unit, the installation of the screening frame can be completed without the aid of any tools, and when producing particles of different sizes, it can be replaced in time and quickly.

Description

Technical Field

[0001] The invention belongs to the technical field of cable processing, and in particular relates to a production device and a method for PVC thermoplastic elastomer cables. Background Art

[0002] PVC thermoplastic elastomer cable is made of high-quality PVC resin, stabilizer and other raw materials. It goes through extrusion, cooling and other processes in cable production, and the granulation equipment performs granulation operations on it. Most of the raw materials are melted and cooled into filaments, and then the corresponding cutting device is used to cut them at the front end of the discharge port to make granules.

[0003] When the screening device in the existing production device is in use, since the internal screening plate is usually fixed, the operator cannot replace the appropriate screening plate in time when producing particles of different sizes, making it difficult for the device to screen a number of particles, making it very limited in use, causing particles of different sizes to be easily mixed together, reducing the qualified rate during production, and thus reducing the efficiency of granulation. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a production device and method for PVC thermoplastic elastomer cables, which effectively solves the problems in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a production device for PVC thermoplastic elastomer cable, comprising a bottom plate, an extrusion device is provided on the bottom plate, and a feed port is installed on the top surface of the extrusion device; a driving motor is provided on one end of the extrusion device, and a cooling device and a pelletizing device are provided on the other end, characterized in that: a forward multiple screening component is provided on the pelletizing device, and the forward multiple screening component can screen a plurality of particles and prevent the plurality of particles from sticking together;

[0006] The forward re-screening assembly includes a collecting box arranged on the pelletizing device, the collecting box and the bottom plate are connected by a plurality of linkage clamping blocks, a linkage square plate is installed on one of the linkage clamping blocks by bolts, a linkage motor is fixedly installed on the linkage square plate, a linkage clamping block is installed on the output end of the linkage motor, and the linkage clamping block is connected with a clamping groove provided on the linkage gear; a shifting contact mechanism is provided on the linkage gear, and the shifting contact mechanism is used to reduce the shaking of the screening frame when in use; a displacement rod is fixedly installed on the linkage gear, and the displacement rod is slidably connected with the transverse groove on the moment cross block; an upright double rod is fixedly installed on the moment cross block, and the two ends of the upright double rod are matched and connected with the rubber pads provided on the U-shaped square rod; the two ends of the U-shaped square rod are fixedly connected with a plurality of reciprocating blocks, and the plurality of reciprocating blocks are connected with the auxiliary block through the screening frame, and the plurality of auxiliary blocks, the reciprocating block and the screening frame are connected by a convenient and detachable joint unit.

[0007] Preferably, the easy-to-disassemble joint unit includes a loading and unloading groove arranged on the auxiliary block and the reciprocating block, the loading and unloading groove is provided with an auxiliary groove, an auxiliary rod is slidably installed on the auxiliary groove, the auxiliary rod is fixedly connected to the loading and unloading inclined block, and the loading and unloading inclined block is connected to the mounting inclined groove provided on the screening frame; an auxiliary spring is sleeved on the auxiliary rod, one end of the auxiliary spring is fixedly connected to the loading and unloading groove, and the other end is fixedly connected to the loading and unloading inclined block, and the loading and unloading inclined block is slidably connected to the loading and unloading groove; a locking single stop assembly is provided on several of the auxiliary rods.

[0008] Preferably, the moment-moving cross block is symmetrically provided with limit blocks, the limit blocks are slidably connected to the limit rods, and the limit rods are fixedly connected to the limit base fixedly provided on the linkage clamping block; the auxiliary block and the reciprocating block are provided with sliding rods, and the sliding rods are fixedly connected to the sliding grooves provided on the collecting box; some of the sliding rods are sleeved with tension springs; the auxiliary block is installed with a guide block, the guide block is provided with a guide rod, and the guide rod is slidably connected to the linkage clamping block.

[0009] Preferably, the shift contact mechanism includes a shift gear meshing with the linkage gear, the shift gear is provided with a shift shaft, the shift shaft passes through the first pulley and is transmission-connected to the collection box; the first pulley is connected to the second pulley through a transmission belt, the second pulley is provided with a driving shaft, the driving shaft passes through a first base provided on the collection box and is connected to the driving bevel gear, the driving bevel gear is meshingly connected to the driven bevel gear, the driven bevel gear is provided with a driven shaft, the driven shaft passes through a second base provided on the collection box and is connected to the first bevel gear, and the first bevel gear is connected to a cyclic pulling mechanism.

[0010] Preferably, a rotating gear is installed on the driven shaft, the rotating gear is meshed and connected to a rotating rack, and transverse blocks are symmetrically installed on the rotating rack. The two transverse blocks are commonly connected to a transverse rod, and the transverse rod is slidably connected to a rotating base fixedly provided on the linkage clamping block; a stop meshing assembly is provided on the rotating rack; a double-rod with different movement is fixedly installed on one of the transverse blocks, and fitting U blocks are installed on both ends of the double-rod with different movement, and the fitting U block is matched and connected with the guide block; a buffer pad is provided in the fitting U block.

[0011] Preferably, the lock single stop assembly includes a locking port arranged on the auxiliary rod, the locking port is connected to the locking rod, a locking plate is provided on the locking rod, a positioning rod is symmetrically installed on the locking plate, one end of the positioning rod is connected to the reciprocating block, and the other end is fixedly connected to the positioning circular plate; a positioning spring is sleeved on the positioning rod, one end of the positioning spring is fixedly connected to the positioning circular plate, and the other end is fixedly connected to the locking plate.

[0012] Preferably, the cyclic pulling mechanism includes a second bevel gear meshingly connected to the first bevel gear, a linkage shaft is installed on the second bevel gear, and the linkage shaft is connected to a linkage base provided on the collection box; a plurality of linkage cams are installed on the linkage shaft.

[0013] Preferably, the stop meshing assembly includes a stop plate symmetrically arranged on the rotating rack, a stop rod is provided on the stop plate, a plurality of stop rods are slidingly connected to the gear teeth, and the gear teeth are cooperatively connected to the rotating gear; a stop spring is sleeved on the stop rod, one end of the stop spring is fixedly connected to the stop plate, and the other end is fixedly connected to the gear teeth.

[0014] Preferably, the linkage cam is cooperatively connected with the auxiliary round rod, a fitting plate is installed on the auxiliary round rod, a directional plate is symmetrically arranged on the fitting plate, the directional plate is slidingly connected with the directional rod provided on the collecting box; a directional spring is sleeved on the directional rod, one end of the directional spring is fixedly connected with the collecting box, and the other end is fixedly connected with the directional plate; a gravity block is installed on the fitting plate, the gravity block is connected with the exhaust box provided on the collecting box, and a plurality of slots are provided on the exhaust box.

[0015] The present invention also provides an extrusion method for a production device for a PVC thermoplastic elastomer cable, comprising the following steps:

[0016] Step 1: Align the screening frame with the bottom of the collection box and move it upwards. The screening frame moves in the collection box, and then the right-angled outer edges on both sides of the screening frame contact the inclined surfaces on the loading and unloading inclined block;

[0017] Step 2: The loading and unloading inclined block moves within the auxiliary groove and the loading and unloading groove through the auxiliary rod, and the auxiliary spring is in a buffering state;

[0018] Step 3: When the loading and unloading inclined block contacts the installation inclined slot on the screening frame, the reset of the auxiliary spring drives the loading and unloading inclined block to reset and move, and enter the installation inclined slot, thereby locking the screening frame at the current height;

[0019] Step 4: Loosen the screening frame, and make the right-angle surface on the installation chute fit in contact with the right-angle surface on the loading and unloading inclined block so that the screening frame will not fall, thereby completing the installation of the screening frame.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) Align the screening frame with the bottom of the collecting box and move it upward, so that the screening frame moves in the collecting box, and then the right-angled outer edges on both sides of the screening frame contact the inclined surfaces on the loading and unloading inclined block, so that the loading and unloading inclined block moves within the auxiliary groove and the loading and unloading groove through the auxiliary rod, and the auxiliary spring is in a buffering state; when the loading and unloading inclined block contacts the mounting inclined groove on the screening frame, the reset of the auxiliary spring drives the loading and unloading inclined block to reset and move and enter the mounting inclined groove, thereby clamping the screening frame at the current height, and by loosening the contact with the screening frame, the right-angled surface on the mounting inclined groove is in contact with the right-angled surface on the loading and unloading inclined block. Thereby, the screening frame will not fall, thereby completing the installation operation of the screening frame. The operation is convenient and quick, and can be completed without the aid of any tools, reducing the limitations of the device during use. At the same time, the installation is completed with the aid of the weight of the screening frame itself. The more particles accumulated in the screening frame, the heavier the weight of the screening frame, making the screening frame more effective during installation, thereby avoiding shaking. When producing particles of different sizes, the operator can promptly and quickly replace different screening plates (screening frames), thereby avoiding mixing of particles of different sizes and improving the efficiency of granulation.

[0022] (2) When installing the screening frame through the convenient and detachable joint unit, first pull the locking plate upward to limit the movement in the positioning rod, and the positioning spring is in a buffering state, which then drives the locking rod to no longer limit the auxiliary rod, so that the convenient and detachable joint unit can be used normally; when the installation is completed, the locking plate is loosened, so that the positioning spring is reset and the locking rod is reset, so that the locking rod is connected to the locking port, thereby limiting the auxiliary rod in the current position to prevent it from moving due to non-human factors; at the same time, the forward re-screening assembly can prevent the screening frame from falling off when in use, thereby improving the effect of the forward re-screening assembly when in use;

[0023] (3) The moment-moving cross block moves back and forth on the limit rod through the limit block, so that the vertical double rods move back and forth and contact the U-shaped square rod. The friction between the vertical double rods and the U-shaped square rod is increased by the provided rubber pad to avoid sliding. When the vertical double rods contact the U-shaped square rod, the two reciprocating blocks move, and then drive the two auxiliary blocks to move through the screening frame, so that the reciprocating blocks and the auxiliary blocks move within the sliding rod, and the tension spring is in a buffering state, thereby driving the screening frame to move upward. When the vertical double rods no longer contact the U-shaped square rod, the reciprocating blocks are reset, thereby driving the screening frame to reset and move. Since the vertical double rods move faster, they suddenly stop contacting the U-shaped square rod, so that the screening frame suddenly moves down, causing some particles in the screening frame to be The spring is stretched and reset at the same time, and the elastic force brought by it makes the screening frame bounce several times on the sliding rod, which strengthens the effect of the particles shaking in the screening frame. Through such reciprocating movement, the device can screen several particles in the screening frame, so that too small particles enter the collection box through the filter port on the screening frame, while qualified particles will remain above the screening frame, reducing the limitations of the device when in use, and at the same time, several qualified particles are vibrated and shaken in the screening frame to avoid sticking together. During vibration, several particles are dispersed, which cooperates with the cyclic drawing and pulling mechanism to improve the cooling efficiency, so that particles of different sizes cannot be mixed together, and the qualified rate of production is improved, thereby improving the granulation effect;

[0024] (4) When the rotating gear meshes with the gear teeth, the gear teeth move back and forth on the stop rod, and the stop spring is constantly in a buffering and resetting state, so that the rotating gear can always mesh with the gear teeth, so that the rotating rack can always remain in the current position, and the force applied to the shift contact mechanism will always exist, thereby improving the use effect of the shift contact mechanism and avoiding the phenomenon of jamming when the rotating gear meshes with the rotating rack;

[0025] (5) The active rotating shaft on the second pulley rotates, thereby rotating the rotating gear on the driven rotating shaft, so that the meshing rotating rack moves, and the rotating rack moves to the upper limit position on the rotating base through the transverse rod, so that the two fitting U blocks on the moving double rods move toward the direction of the guide block, and the guide block enters the fitting U block, thereby limiting the movement of the guide block and preventing it from moving left and right; at the same time, a buffer pad is provided in the fitting U block, and when the screening frame is screening, it can only shake up and down. When it shakes left and right, the impact force caused by it is absorbed by the buffer pad, thereby improving the stability of the screening frame during screening and preventing it from moving left and right, which causes the collection box to shake as a whole;

[0026] (6) When the linkage cam contacts the auxiliary round rod, the bonding plate moves on the upper limit of the directional rod through the directional plate, and the directional spring is in a buffering state. When the linkage cam no longer contacts the auxiliary round rod, the reset of the directional spring drives the bonding plate to reset and move. Through such reciprocating movement, the gravity block on the bonding plate moves back and forth in the exhaust box; when the gravity block moves backward in the exhaust box, the gas in the collection box will flow to the outside through the slot; when the gravity block moves forward in the exhaust box, the outside gas will pass through the slot and the exhaust box and be squeezed into the collection box. Such reciprocating movement realizes the ventilation operation, avoids the large amount of particles accumulated in the collection box causing the internal temperature to be too high, and achieves the cooling effect. At the same time, it can transport the unclean gas inside to the outside, avoid the accumulation of a large amount of harmful gas inside, and cooperate with the traditional fan heat dissipation to improve the cooling effect, thereby avoiding several particles sticking together, improving the production qualification rate and granulation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0028] In the attached picture:

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of the collecting box of the present invention;

[0031] Figure 3 This is a schematic diagram of the displacement rod structure of the present invention;

[0032] Figure 4 This is a schematic diagram of the U-block structure of the present invention;

[0033] Figure 5 This is a schematic diagram of the screening frame structure of the present invention;

[0034] Figure 6 For the present invention Figure 4 A local enlarged structural diagram of the part;

[0035] Figure 7 It is a schematic diagram of the linkage cam structure of the present invention;

[0036] Figure 8 This is a schematic diagram of the auxiliary moving block structure of the present invention;

[0037] Fig. 9 It is a schematic diagram of the structure of the linkage motor of the present invention;

[0038] Fig.10 For the present invention Figure 5 A schematic diagram of the local enlarged structure at B in FIG.

[0039] Fig.11 This is a schematic diagram of the active shaft structure of the present invention;

[0040] Fig.12 This is a schematic diagram of the locking port structure of the present invention;

[0041] Fig.13 For the present invention Figure 7 A schematic diagram of the local enlarged structure at C in FIG.

[0042] In the figure: 1, bottom plate; 2, extrusion equipment; 3, pelletizing equipment; 4, collecting box; 5, linkage clamping block; 6, linkage square plate; 7, linkage motor; 8, linkage clamping block; 9, linkage gear; 10, displacement rod; 11, moment cross block; 12, vertical double rod; 13, U-shaped square rod; 14, rubber pad; 15, reciprocating block; 16, screening frame; 17, auxiliary block; 18, loading and unloading slot; 19, auxiliary slot; 20, auxiliary rod; 21, loading and unloading inclined block; 22, installation inclined slot; 23, auxiliary spring; 24, limit block; 25, limit rod; 26, limit base; 27, sliding rod; 28, sliding slot; 29, tension spring; 30, guide block; 31, guide rod; 32, shift gear; 33, shift shaft; 34, first pulley; 35, transmission belt; 36, second pulley; 3 7. Driving shaft; 38. Driving bevel gear; 39. Driven bevel gear; 40. Driven shaft; 41. First bevel gear; 42. Rotating gear; 43. Rotating rack; 44. Horizontal square; 45. Horizontal rod; 46. Rotating base; 47. Differential double rod; 48. Fitting U block; 49. Buffer pad; 50. Locking mouth; 51. Locking rod; 52. Locking plate; 53. Positioning rod; 54. Positioning circular plate; 55. Positioning spring; 56. Second bevel gear; 57. Linkage shaft; 58. Linkage base; 59. Linkage cam; 60. Stop plate; 61. Stop rod; 62. Gear teeth; 63. Stop spring; 64. Auxiliary circular rod; 65. Fitting plate; 66. Orienting plate; 67. Orienting rod; 68. Orienting spring; 69. Gravity block; 70. Exhaust box; 71. Slotting. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0044] Example, by Figures 1 to 13The present invention comprises a bottom plate 1, on which an extrusion device 2 is provided, and a feed port is installed on the top surface of the extrusion device 2; a driving motor is provided on one end of the extrusion device 2, and a cooling device and a pelletizing device 3 are provided on the other end, characterized in that: the pelletizing device 3 is provided with a reciprocating rescreening component, which can perform screening operations on a plurality of particles and prevent a plurality of particles from sticking together; the reciprocating rescreening component comprises a collecting box 4 arranged on the pelletizing device 3, and the collecting box 4 is connected to the bottom plate 1 by a plurality of linkage clamping blocks 5, a linkage square plate 6 is installed on one of the linkage clamping blocks 5 by bolts, a linkage motor 7 is fixedly installed on the linkage square plate 6, a linkage card block 8 is installed on the output end of the linkage motor 7, and the linkage card block 8 is connected to a card groove provided on a linkage gear 9; a displacement touch mechanism is provided on the linkage gear 9, and the displacement touch mechanism is used to reduce the shaking of the screening frame 16 when in use; a displacement rod 10 is fixedly installed on the linkage gear 9, and the displacement rod 10 is connected to the moment cross block The horizontal groove on 11 is slidably connected; the vertical double rods 12 are fixedly installed on the moment-moving cross block 11, and the two ends of the vertical double rods 12 are matched and connected with the rubber pads 14 provided on the U-shaped square rod 13; the two ends of the U-shaped square rod 13 are fixedly connected with a plurality of reciprocating blocks 15, and the plurality of reciprocating blocks 15 are connected with the auxiliary blocks 17 through the screening frame 16, and the plurality of auxiliary blocks 17, the reciprocating blocks 15 and the screening frame 16 are connected through a convenient joint unit; the moment-moving cross block 11 is symmetrically provided with limit The block 24 is provided with a limit block 24 and a limit rod 25 in a sliding connection, and the limit rod 25 is fixedly connected with a limit base 26 fixedly provided on the linkage clamping block 5; the auxiliary block 17 and the reciprocating block 15 are provided with a sliding rod 27, and the sliding rod 27 is fixedly connected with a sliding groove 28 provided on the collection box 4; a plurality of the sliding rods 27 are sleeved with a tension spring 29; a guide block 30 is installed on the auxiliary block 17, and a guide rod 31 is provided on the guide block 30, and the guide rod 31 is slidably connected with the linkage clamping block 5;

[0045] The device melts the raw material through the extruder 2 and passes through the cooling device to form a filament, and then cuts it at the discharge port through the pelletizer, so that a number of cut particles enter the screening frame 16. Then the operator starts the linkage motor 7 to drive the linkage block 8 on the output end to drive the linkage gear 9 to rotate, and then drives the displacement rod 10 to move in the horizontal groove on the moment cross block 11, so that the moment cross block 11 moves back and forth on the limit rod 25 through the limit block 24, so that the vertical double rod 12 moves back and forth. The double vertical rods 12 move back and forth and contact the U-shaped square rod 13. The friction between the vertical double rods 12 and the U-shaped square rod 13 is increased by the rubber pads 14 to avoid sliding. When the vertical double rods 12 contact the U-shaped square rod 13, the two reciprocating blocks 15 move, and the two auxiliary blocks 17 are driven to move through the screening frame 16, so that the reciprocating blocks 15 and the auxiliary blocks 17 move within the sliding rod 27. The tension spring 29 is in a buffering state, thereby driving the screening frame 16 to move upward. When the vertical double rods 12 no longer contact the U-shaped square rod, the two reciprocating blocks 15 move back and forth, and the two auxiliary blocks 17 move within the sliding rod 27. 13, so that the reciprocating block 15 is reset, thereby driving the screening frame 16 to reset and move. Since the vertical double rods 12 move faster, they suddenly stop contacting with the U-shaped square rod 13, so that the screening frame 16 suddenly moves down, causing several particles in the screening frame 16 to shake inside. At the same time, the stretch spring 29 is reset, and the elastic force brought by it makes the screening frame 16 bounce on the sliding rod 27 several times, thereby strengthening the effect of the particles shaking inside the screening frame 16. Through such reciprocating movement, the device can screen several particles in the screening frame 16. The screening operation is performed so that particles that are too small pass through the filter port on the screening frame 16 and enter the collecting box 4, while qualified particles remain on the screening frame 16, reducing the limitations of the device during use, and at the same time allowing a number of qualified particles to vibrate and shake in the screening frame 16 to avoid sticking together, and allowing a number of particles to be dispersed during vibration, which cooperates with the cyclic pulling mechanism to improve the cooling efficiency, prevent particles of different sizes from being mixed together, improve the production pass rate, and thus improve the granulation effect.

[0046] The convenient disassembly unit of this embodiment includes a loading and unloading groove 18 arranged on the auxiliary block 17 and the reciprocating block 15, an auxiliary groove 19 is provided on the loading and unloading groove 18, an auxiliary rod 20 is slidably installed on the auxiliary groove 19, the auxiliary rod 20 is fixedly connected with the loading and unloading inclined block 21, and the loading and unloading inclined block 21 is connected with the installation inclined groove 22 provided on the screening frame 16; the auxiliary rod 20 is sleeved with an auxiliary spring 23, one end of the auxiliary spring 23 is fixedly connected with the loading and unloading groove 18, and the other end is fixedly connected with the loading and unloading inclined block 21, and the loading and unloading inclined block 21 is slidably connected with the loading and unloading groove 18; a plurality of the auxiliary rods 20 are provided with a locking single stop assembly;

[0047] When it is necessary to install screening frames 16 of different sizes, align the screening frame 16 with the bottom of the collecting box 4 and move it upward, so that the screening frame 16 moves in the collecting box 4, and then the right-angled outer edges on both sides of the screening frame 16 contact the inclined surfaces on the loading and unloading inclined block 21, so that the loading and unloading inclined block 21 moves within the auxiliary groove 19 and the loading and unloading groove 18 through the auxiliary rod 20, and the auxiliary spring 23 is in a buffering state; when the loading and unloading inclined block 21 contacts the installation inclined groove 22 on the screening frame 16, the reset of the auxiliary spring 23 drives the loading and unloading inclined block 21 to reset and move and enter the installation inclined groove 22, so that the screening frame 16 is clamped at the current height, and the contact with the screening frame 16 is released so that the installation inclined groove 22 is The right-angled surface of the screen frame 16 fits in contact with the right-angled surface on the loading and unloading inclined block 21, so that the screening frame 16 will not fall, thereby completing the installation operation of the screening frame 16. The operation is convenient and quick, and can be completed without the aid of any tools, reducing the limitations of the device when in use. At the same time, the installation is completed with the help of the weight of the screening frame 16 itself. The more particles accumulated in the screening frame 16, the heavier the weight of the screening frame 16, so that the effect of the screening frame 16 during installation is better, thereby avoiding shaking; when producing particles of different sizes, the operator can promptly and quickly replace different screening plates (screening frames), thereby avoiding mixing of particles of different sizes, thereby improving the efficiency of granulation.

[0048] The shift contact mechanism of this embodiment includes a shift gear 32 meshing with the linkage gear 9, and a shift shaft 33 is provided on the shift gear 32, and the shift shaft 33 passes through the first pulley 34 and is connected to the collection box 4 through transmission; the first pulley 34 is connected to the second pulley 36 through a transmission belt 35, and the second pulley 36 is provided with a driving shaft 37, and the driving shaft 37 passes through the first base provided on the collection box 4 and is connected to the driving bevel gear 38, and the driving bevel gear 38 is meshingly connected to the driven bevel gear 39, and the driven bevel gear 39 is provided with a driven shaft 40, and the driven shaft 40 passes through the second base provided on the collection box 4 and is connected to the first bevel gear 41, and the first bevel gear 42 is connected to the second bevel gear 43. A bevel gear 41 is connected to a cyclic pulling mechanism; a rotating gear 42 is installed on the driven shaft 40, and the rotating gear 42 is meshed with a rotating rack 43, and a horizontal block 44 is symmetrically installed on the rotating rack 43, and the two horizontal blocks 44 are connected to a horizontal rod 45, and the horizontal rod 45 is slidably connected with a rotating base 46 fixedly provided on the linkage clamping block 5; a stop meshing assembly is provided on the rotating rack 43; a moving double rod 47 is fixedly installed on one of the horizontal blocks 44, and a fitting U block 48 is installed on both ends of the moving double rod 47, and the fitting U block 48 is connected with the guide block 30; a buffer pad 49 is provided inside the fitting U block 48;

[0049] When the linkage gear 9 rotates, the meshing shift gear 32 rotates, causing the active rotating shaft 37 on the second pulley 36 to rotate, thereby causing the rotating gear 42 on the driven rotating shaft 40 to rotate, causing it to mesh with the rotating rack 43 and move, so that the rotating rack 43 moves on the rotating base 46 through the transverse rod 45, so that the two fitting U blocks 48 on the differential double rods 47 move toward the direction of the guide block 30, and the guide block 30 enters the fitting U block 48, thereby limiting the movement of the guide block 30 and preventing it from moving left and right; at the same time, a buffer pad 49 is provided in the fitting U block 48, and when the screening frame 16 is screening, it can only shake up and down. When it shakes left and right, the impact force caused by it is absorbed by the buffer pad 49, thereby improving the stability of the screening frame 16 during screening and preventing it from moving left and right, causing the collection box 4 to shake as a whole.

[0050] The locking and stopping assembly of the present embodiment includes a locking opening 50 arranged on the auxiliary lever 20, the locking opening 50 is connected to the locking lever 51, the locking lever 51 is provided with a locking plate 52, and a positioning rod 53 is symmetrically mounted on the locking plate 52, one end of the positioning rod 53 is connected to the reciprocating block 15, and the other end is fixedly connected to the positioning circular plate 54; a positioning spring 55 is sleeved on the positioning rod 53, one end of the positioning spring 55 is fixedly connected to the positioning circular plate 54, and the other end is fixedly connected to the locking plate 52;

[0051] When the operator installs the screening frame 16 through the convenient and detachable joint unit, he first pulls the locking plate 52 upwards to limit the movement of the positioning rod 53, and the positioning spring 55 is in a buffering state, which then drives the locking rod 51 to no longer limit the auxiliary rod 20, so that the convenient and detachable joint unit can be used normally; when the installation is completed, the locking plate 52 is loosened, so that the positioning spring 55 is reset and the locking rod 51 is reset, so that the locking rod 51 is connected to the locking port 50, thereby limiting the auxiliary rod 20 in the current position to prevent it from moving due to non-human factors; at the same time, the forward re-screening assembly can prevent the screening frame 16 from falling off when in use, thereby improving the effect of the forward re-screening assembly when in use.

[0052] The cyclic pulling mechanism of this embodiment includes a second bevel gear 56 meshingly connected with the first bevel gear 41, and a linkage shaft 57 is installed on the second bevel gear 56, and the linkage shaft 57 is connected with a linkage base 58 provided on the collection box 4; a plurality of linkage cams 59 are installed on the linkage shaft 57; the linkage cam 59 is connected with the auxiliary round rod 64, and a fitting plate 65 is installed on the auxiliary round rod 64, and a directional plate 66 is symmetrically provided on the fitting plate 65, and the directional plate 66 is slidably connected with the directional rod 67 provided on the collection box 4; a directional spring 68 is sleeved on the directional rod 67, one end of the directional spring 68 is fixedly connected with the collection box 4, and the other end is fixedly connected with the directional plate 66; a gravity block 69 is installed on the fitting plate 65, and the gravity block 69 is connected with the exhaust box 70 provided on the collection box 4, and the exhaust box 70 is provided with a plurality of slots 71;

[0053] When the first bevel gear 41 rotates, it meshes with the second bevel gear 56 to rotate, thereby causing several linkage cams 59 to rotate; when the linkage cam 59 contacts the auxiliary round rod 64, the bonding plate 65 is moved on the upper limit position of the directional rod 67 through the directional plate 66, and the directional spring 68 is in a buffering state. When the linkage cam 59 no longer contacts the auxiliary round rod 64, the reset of the directional spring 68 drives the bonding plate 65 to reset and move. Through such reciprocating movement, the gravity block 69 on the bonding plate 65 reciprocates in the exhaust box 70; when the gravity block 69 moves backward in the exhaust box 70, the air in the collection box 4 is collected. The body will leak to the outside through the slot 71. When the gravity block 69 moves forward in the exhaust box 70, the external gas will pass through the slot 71 and the exhaust box 70, and be squeezed into the collecting box 4. This reciprocating movement can realize the ventilation operation, avoid the large amount of particles accumulated in the collecting box 4 causing the internal temperature to be too high, and achieve the cooling effect. At the same time, the unclean gas inside can be transported to the outside to avoid the accumulation of a large amount of harmful gas inside. At the same time, it cooperates with the traditional fan heat dissipation to improve the cooling effect, thereby avoiding several particles sticking together, improving the production qualification rate and granulation efficiency.

[0054] The stop meshing assembly of this embodiment includes a stop plate 60 symmetrically arranged on the rotating rack 43, a stop rod 61 is arranged on the stop plate 60, a plurality of stop rods 61 are slidably connected with gear teeth 62, and the gear teeth 62 are matched and connected with the rotating gear 42; a stop spring 63 is sleeved on the stop rod 61, one end of the stop spring 63 is fixedly connected with the stop plate 60, and the other end is fixedly connected with the gear teeth 62;

[0055] When the rotating gear 42 engages with the gear teeth 62, the gear teeth 62 move back and forth on the stop rod 61, and the stop spring 63 is constantly in a buffering and resetting state, so that the rotating gear 42 can always engage with the gear teeth 62, so that the rotating rack 43 can always remain in the current position, and the force applied to the shift contact mechanism will always exist, thereby improving the use effect of the shift contact mechanism and avoiding the phenomenon of jamming when the rotating gear 42 engages with the rotating rack 43.

[0056] The present invention also provides an extrusion method for a production device for a PVC thermoplastic elastomer cable, comprising the following steps:

[0057] Step 1: Align the screening frame 16 with the bottom of the collecting box 4 and move it upwards. The screening frame 16 moves in the collecting box 4, and then the right-angled outer edges on both sides of the screening frame 16 contact the inclined surfaces on the loading and unloading inclined block 21;

[0058] Step 2: The loading and unloading inclined block 21 moves within the auxiliary groove 19 and the loading and unloading groove 18 through the auxiliary rod 20, and the auxiliary spring 23 is in a buffering state;

[0059] Step 3: When the loading and unloading inclined block 21 contacts the installation inclined slot 22 on the screening frame 16, the reset of the auxiliary spring 23 drives the loading and unloading inclined block 21 to reset and move, and enter the installation inclined slot 22, thereby locking the screening frame 16 at the current height;

[0060] Step 4: Loosen the screening frame 16 , and fit the right-angled surface on the installation chute 22 with the right-angled surface on the loading and unloading inclined block 21 , so that the screening frame 16 will not fall, thereby completing the installation of the screening frame 16 .

[0061] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production device for PVC thermoplastic elastomer cable, comprising a bottom plate (1), an extrusion device (2) being provided on the bottom plate (1), a feed port being provided on the top surface of the extrusion device (2); a driving motor being provided on one end of the extrusion device (2), and a cooling device and a pelletizing device (3) being provided on the other end, characterized in that: The pelletizing device (3) is provided with a reciprocating rescreening assembly, which can perform a screening operation on a plurality of particles and prevent the plurality of particles from sticking together; The forward re-screening assembly comprises a collecting box (4) arranged on the pelletizing device (3); the collecting box (4) is connected to the bottom plate (1) via a plurality of linkage clamping blocks (5); a linkage square plate (6) is mounted on one of the linkage clamping blocks (5) via bolts; a linkage motor (7) is fixedly mounted on the linkage square plate (6); a linkage clamping block (8) is mounted on the output end of the linkage motor (7); the linkage clamping block (8) is connected to a clamping groove provided on a linkage gear (9); a shifting contact mechanism is provided on the linkage gear (9); the shifting contact mechanism is used to reduce the shaking of the screening frame (16) when in use; the linkage gear (9) is provided with a shifting contact mechanism, and the shifting contact mechanism is used to reduce the shaking of the screening frame (16) when in use; the linkage gear (16 ... A displacement rod (10) is fixedly mounted on the wheel (9), and the displacement rod (10) is slidably connected to a transverse groove on a moment-moving cross block (11); a vertical double rod (12) is fixedly mounted on the moment-moving cross block (11), and both ends of the vertical double rod (12) are matched and connected to a rubber pad (14) provided on a U-shaped square rod (13); both ends of the U-shaped square rod (13) are fixedly connected to a plurality of reciprocating blocks (15), and the plurality of reciprocating blocks (15) are connected to an auxiliary block (17) through a screening frame (16), and the plurality of auxiliary blocks (17), the reciprocating block (15) and the screening frame (16) are connected through a conveniently detachable joint unit; The shift contact mechanism comprises a shift gear (32) meshingly connected with the linkage gear (9); a shift rotating shaft (33) is provided on the shift gear (32); the shift rotating shaft (33) passes through a first pulley (34) and is transmission-connected to the collection box (4); the first pulley (34) is connected to the second pulley (36) through a transmission belt (35); a driving rotating shaft (37) is provided on the second pulley (36); the driving rotating shaft (37) passes through a first base provided on the collection box (4) and is connected to a driving bevel gear (38); the driving bevel gear (38) is meshingly connected to a driven bevel gear (39); a driven rotating shaft (40) is provided on the driven bevel gear (39); the driven rotating shaft (40) passes through a second base provided on the collection box (4) and is connected to a first bevel gear (41); a cyclic pulling mechanism is connected to the first bevel gear (41); The cyclic pulling mechanism comprises a second bevel gear (56) meshingly connected with the first bevel gear (41); a linkage shaft (57) is mounted on the second bevel gear (56); the linkage shaft (57) is connected to a linkage base (58) provided on the collection box (4); and a plurality of linkage cams (59) are mounted on the linkage shaft (57); The linkage cam (59) is connected to the auxiliary round rod (64) in a cooperative manner. The auxiliary round rod (64) is provided with a bonding plate (65). The bonding plate (65) is symmetrically provided with an orientation plate (66). The orientation plate (66) is slidably connected to an orientation rod (67) provided on the collection box (4). A directional spring (68) is sleeved on the orientation rod (67). One end of the directional spring (68) is fixedly connected to the collection box (4), and the other end is fixedly connected to the orientation plate (66). The bonding plate (65 ) is provided with a gravity block (69), the gravity block (69) is connected to an exhaust box (70) provided on the collection box (4), and a plurality of slots (71) are provided on the exhaust box (70); when the gravity block (69) moves backward in the exhaust box (70), the gas in the collection box (4) will flow to the outside through the slots (71); when the gravity block (69) moves forward in the exhaust box (70), the gas in the outside will pass through the slots (71) and the exhaust box (70), and thus be squeezed into the collection box (4); The moment-moving cross block (11) is symmetrically provided with a limit block (24), the limit block (24) is slidably connected to a limit rod (25), and the limit rod (25) is fixedly connected to a limit base (26) fixedly provided on the linkage clamping block (5); the auxiliary moving block (17) and the reciprocating block (15) are provided with a sliding rod (27), and the sliding rod (27) is fixedly connected to a sliding groove (28) provided on the collection box (4); a plurality of the sliding rods (27) are sleeved with a tension spring (29); the auxiliary moving block (17) is installed with a guide block (30), and the guide block (30) is provided with a guide rod (31), and the guide rod (31) is slidably connected to the linkage clamping block (5); The driven rotating shaft (40) is provided with a rotating gear (42), the rotating gear (42) is meshedly connected to a rotating rack (43), a transverse block (44) is symmetrically provided on the rotating rack (43), the two transverse blocks (44) are commonly connected to a transverse rod (45), the transverse rod (45) is slidably connected to a rotating base (46) fixedly provided on the linkage clamping block (5); a stop meshing assembly is provided on the rotating rack (43); a moving double rod (47) is fixedly provided on one of the transverse blocks (44), a fitting U block (48) is provided on both ends of the moving double rod (47), the fitting U block (48) is matched and connected to the guide block (30); a buffer pad (49) is provided inside the fitting U block (48); The stop meshing assembly comprises a stop plate (60) symmetrically arranged on the rotating rack (43); a stop rod (61) is arranged on the stop plate (60); a plurality of stop rods (61) are slidably connected to gear teeth (62); the gear teeth (62) are cooperatively connected to the rotating gear (42); a stop spring (63) is sleeved on the stop rod (61); one end of the stop spring (63) is fixedly connected to the stop plate (60), and the other end is fixedly connected to the gear teeth (62).

2. The production device for PVC thermoplastic elastomer cable according to claim 1, characterized in that: The convenient disassembly joint unit comprises a loading and unloading groove (18) arranged on the auxiliary block (17) and the reciprocating block (15); an auxiliary groove (19) is arranged on the loading and unloading groove (18); an auxiliary rod (20) is slidably mounted on the auxiliary groove (19); the auxiliary rod (20) is fixedly connected to the loading and unloading inclined block (21); the loading and unloading inclined block (21) is connected to the mounting inclined groove (22) arranged on the screening frame (16); an auxiliary spring (23) is sleeved on the auxiliary rod (20); one end of the auxiliary spring (23) is fixedly connected to the loading and unloading groove (18), and the other end is fixedly connected to the loading and unloading inclined block (21); the loading and unloading inclined block (21) is slidably connected to the loading and unloading groove (18); and a plurality of the auxiliary rods (20) are provided with a locking single stopper assembly.

3. The production device for PVC thermoplastic elastomer cable according to claim 2, characterized in that: The locking and stopping assembly comprises a locking opening (50) arranged on the auxiliary rod (20), the locking opening (50) being connected to the locking rod (51), the locking rod (51) being provided with a locking plate (52), the locking plate (52) being symmetrically provided with a positioning rod (53), one end of the positioning rod (53) being connected to the reciprocating block (15), and the other end being fixedly connected to the positioning circular plate (54); a positioning spring (55) being sleeved on the positioning rod (53), one end of the positioning spring (55) being fixedly connected to the positioning circular plate (54), and the other end being fixedly connected to the locking plate (52).

4. An extrusion method for a production device for PVC thermoplastic elastomer cable, using the production device for PVC thermoplastic elastomer cable as claimed in claim 2, characterized in that: Includes steps: Step 1: Align the screening frame (16) with the bottom of the collecting box (4) and move it upwards. The screening frame (16) moves in the collecting box (4), and then the right-angled outer edges on both sides of the screening frame (16) contact the inclined surfaces on the loading and unloading inclined block (21); Step 2: The loading and unloading inclined block (21) is limitedly moved in the auxiliary groove (19) and the loading and unloading groove (18) by the auxiliary rod (20), and the auxiliary spring (23) is in a buffering state; Step 3: When the loading and unloading inclined block (21) contacts the installation inclined slot (22) on the screening frame (16), the reset of the auxiliary spring (23) drives the loading and unloading inclined block (21) to reset and move, and enter the installation inclined slot (22), thereby locking the screening frame (16) at the current height; Step 4: Loosen the screening frame (16), and make the right-angled surface on the installation chute (22) fit in contact with the right-angled surface on the loading and unloading inclined block (21), so that the screening frame (16) will not fall, thereby completing the installation of the screening frame (16).

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