Bicycle inner tube tread extruder

Abstract

The present invention provides a bicycle inner tube tread extruder. It relates to the technical field of rubber tread manufacturing. The bicycle inner tube tread extruder comprises: an extruder body and an extruder barrel arranged above the extruder body, an extrusion screw is rotatably installed on the inner wall of one side of the extruder barrel, two support columns are fixedly installed on the top of the extruder body, the tops of the two support columns are fixedly connected to the extruder barrel, a reducer is fixedly installed on the top of the extruder body, the output shaft of the reducer is fixedly connected to one end of the extrusion screw, a reduction motor is fixedly installed on one side of the reducer, and a lower hopper is fixedly installed on the extruder barrel. The present invention can not only automatically put the rubber strip into the extruder barrel, but also maximize the cleanliness of the rubber strip, and has the advantage of improving the extrusion quality.

Description

Technical Field

[0001] The invention relates to the technical field of rubber tread manufacturing, in particular to a bicycle inner tube tread extruder. Background Art

[0002] The inner tube of a bicycle is a donut-shaped elastic tube, which is mainly used to maintain the air pressure inside the tire. It usually contains a valve for inflating and maintaining the air pressure in the inner tube. In order to ensure that it has good air tightness, heat resistance, aging resistance and other properties, and improve its stability in long-term use, this inner tube is generally made of butyl rubber, which has good air tightness and durability. In the process of processing bicycle inner tubes, an extruder is generally used to process the tread. During processing, the corresponding extrusion die is set at the discharge end of the extruder to extrude the corresponding tread.

[0003] However, when using a common single-screw extruder to produce and process the inner tube tread, it is found that the feeding method usually adopts manual filling, that is, manually holding a long rubber strip and then inserting the rubber strip into the extruder barrel little by little. On the one hand, it requires continuous manual observation and operation, which consumes people's energy and physical strength. On the other hand, the rubber strip raw material may adhere to a lot of dust during transportation, and in the early stage of feeding, the tail of the longer rubber strip will drag on the ground, thereby being contaminated with more dust. When there is a lot of dust, it will directly affect the extrusion quality of the tread.

[0004] Therefore, it is necessary to provide a kind of bicycle inner tube tread extruder to solve the problems of the technologies described above. Summary of the invention

[0005] The invention aims to provide a bicycle inner tube tread extruder which can automatically put a rubber strip into an extruder barrel and improve the cleanliness of the rubber strip to the greatest extent.

[0006] In order to solve the above technical problems, the present invention provides a bicycle inner tube tread extruder, comprising: an extruder body and an extruder barrel arranged above the extruder body, an extrusion screw is rotatably installed on the inner wall of one side of the extruder barrel, two support columns are fixedly installed on the top of the extruder body, the tops of the two support columns are fixedly connected to the extruder barrel, a reducer is fixedly installed on the top of the extruder body, the output shaft of the reducer is fixedly connected to one end of the extrusion screw, a reduction motor is fixedly installed on one side of the reducer, a lower hopper is fixedly installed on the extruder barrel, a mold sleeve is detachably installed on the end of the extruder barrel away from the reducer, a support frame is fixedly installed on the top of the extruder body, the same shaft rod is rotatably installed on the support frame, four load-bearing horizontal bars distributed in a ring array are fixedly installed on the shaft rod, and four A slide seat is slidably installed on the bearing horizontal bar, and a support platform is fixedly installed on the top of the four slide seats. Four first rodless cylinders distributed in a circular array are fixedly installed on the axial rod, and linkage bars are fixedly installed on the sliders of the four first rodless cylinders. The four linkage bars are fixedly connected to the four support platforms respectively. Internal threaded sleeves are rotatably installed on the four support platforms, and first lifting screws are threadedly installed in the four internal threaded sleeves. The bottom ends of the four first lifting screws are fixedly installed with U-shaped frames, and two first clamping cylinders are fixedly installed in the four U-shaped frames. Positioning clips are fixedly installed on the output shafts of the eight first clamping cylinders; a side frame plate is fixedly installed on one side of the extruder body, and a dust cleaning mechanism is provided on the side frame plate. The rubber strip is covered with two covering boxes in the dust cleaning mechanism, and then the rubber strip is cleaned with a brush roller.

[0007] Preferably, a male thread is provided on the outer wall of the extruder barrel, and a female thread is provided on the inner wall of the die sleeve, the male thread is screwed together with the female thread, and an embedded ring is fixedly installed on the inner wall of the die sleeve, and one side of the embedded ring is in contact with the end face of the extruder barrel.

[0008] Preferably, the dust cleaning mechanism includes a first telescopic cylinder fixedly installed on one side of the side frame plate close to the extruder body. The output shaft of the first telescopic cylinder penetrates through the side frame plate and is movably connected to the side frame plate. A connecting plate is fixedly installed on the output shaft of the first telescopic cylinder. Two second clamping cylinders are fixedly installed on the connecting plate. Couplings are fixedly installed on the output shafts of the two second clamping cylinders through bolts. First C-shaped frames are fixedly installed on one side of the two couplings close to each other. Covering boxes are fixedly installed on one side of the two first C-shaped frames close to each other. The bottoms of the two covering boxes are both provided with openings. Second lifting screws are rotatably installed in the two first C-shaped frames. Lifting bars are threadedly installed on the two second lifting screws. One side of the two lifting bars close to each other extends into the two covering boxes respectively and is slidably connected to the corresponding covering box. Second C-shaped frames are fixedly installed on one side of the two lifting bars close to each other. Roller shafts are rotatably installed in the two second C-shaped frames. Brush rollers are fixedly sleeved on the two roller shafts. Motors are fixedly installed on the outer wall of one side of the two second C-shaped frames. The output shafts of the two motors are respectively fixedly connected to one end of the two roller shafts.

[0009] Preferably, a dust receiving hopper is fixedly installed on one side of the side frame plate away from the extruder body. The dust receiving hopper is located below the covering box. A second telescopic cylinder is fixedly installed on one side of the connecting plate away from the side frame plate. Placing tables are fixedly installed on the output shafts of the two second telescopic cylinders. Placing grooves are opened on the two placing tables. Dust receiving boxes are arranged in the two placing grooves. A shuttle hole is opened on the top of the dust receiving box. The bottom end of the dust receiving hopper penetrates through the shuttle hole and extends into the dust receiving box.

[0010] Preferably, a first servo motor is fixedly installed on the outer wall of one side of the support frame. Round gears are fixedly sleeved on the output shaft of the first servo motor and the shaft center rod. The two round gears are meshed with each other. Four stable folding plates are fixedly installed on the shaft center rod in an annular array distribution. The end parts of the four bearing single bars are respectively fixedly connected to the four stable folding plates.

[0011] Preferably, second servo motors are fixedly installed on the tops of the four support platforms. First bevel gears are fixedly installed on the output shafts of the four second servo motors. Second bevel gears are fixedly sleeved on the four internal thread sleeves. The four first bevel gears are respectively meshed with the four second bevel gears.

[0012] Preferably, third servo motors are fixedly installed on the tops of the two first C-shaped frames, output shafts of the two third servo motors are fixedly connected to the tops of the two second lifting screws respectively, limiting sliding grooves are formed in the sides of the two covering boxes away from each other, the two lifting bars penetrate through the two limiting sliding grooves respectively, and the two lifting bars are in contact with the inner walls of the two limiting sliding grooves respectively.

[0013] Preferably, a bearing plate is fixedly installed on the top of the extruder body, the extruder barrel penetrates through the bearing plate, two third telescopic cylinders are fixedly installed on the side of the bearing plate close to the reducer, the third telescopic cylinders penetrate through the support columns away from the reducer, output shafts of the two third telescopic cylinders penetrate through the bearing plate and are slidably connected to the bearing plate, a same rectangular frame is fixedly installed on the output shafts of the two third telescopic cylinders, two annular hollow plates are arranged in the rectangular frame, inner walls of the two annular hollow plates are in contact with the die sleeve, fourth telescopic cylinders are fixedly installed on the outer walls of the top and the bottom of the rectangular frame, output shafts of the two fourth telescopic cylinders extend into the rectangular frame and are fixedly connected to the corresponding annular hollow plates respectively, the output shafts of the fourth telescopic cylinders are slidably connected to the rectangular frame, an arc-shaped water pipe is fixedly installed in the annular hollow plate located above, a plurality of water spray heads are fixedly installed on the inner circumferential wall of the arc-shaped water pipe, the water spray heads correspond to the outer circumferential wall of the die sleeve, a water pump is fixedly installed on the top of the bearing plate, one end of a connecting hose is fixedly installed at the water outlet end of the water pump, the other end of the connecting hose is fixedly installed at one end of a connecting pipe, the other end of the connecting pipe extends into the annular hollow plate and is fixedly connected to the arc-shaped water pipe, a water diversion hopper is fixedly installed on the side of the extruder body away from the side frame plate, a drain pipe is fixedly installed on one side of the annular hollow plate located below, and the bottom end of the drain pipe is located above the water diversion hopper.

[0014] Preferably, two third clamping cylinders are fixedly installed on the side of the rectangular frame away from the bearing plate, arc-shaped mounting pieces are fixedly installed on the output shafts of the two third clamping cylinders, arc-shaped sponge strips are pasted on the inner walls of the two arc-shaped mounting pieces, and the inner diameter of the arc-shaped sponge strip is slightly smaller than the outer diameter of the die sleeve.

[0015] Preferably, the mold sleeve is slidably mounted on the extruder barrel, a cross beam is fixedly mounted on one side of the extruder body, a gantry is fixedly mounted on the top of the cross beam, a rotating shaft is rotatably mounted on the gantry, a fourth servo motor is fixedly mounted on the side of the gantry away from the extruder barrel, an output shaft of the fourth servo motor is fixedly connected to one end of the rotating shaft, a cross connecting plate is fixedly mounted on the end of the rotating shaft close to the mold sleeve, four second rodless cylinders distributed in a circular array are fixedly mounted on the side of the cross connecting plate close to the mold sleeve, push blocks are fixedly mounted on the sliders of the four second rodless cylinders, square plug rods are fixedly mounted on the sides of the four push blocks away from the gantry, a fixing seat is fixedly mounted on the side of the mold sleeve close to the gantry, an installation slot is provided on the fixing seat close to the gantry, one side of one of the square plug rods extends into the installation slot and is fixedly connected to the fixing seat by bolts.

[0016] Compared with the related art, the bicycle inner tube tread extruder provided by the present invention has the following beneficial effects:

[0017] ①. The rubber strip raw material can be mechanically clamped by the first clamping cylinder and the positioning clip, and then the clamped rubber strip raw material can be automatically driven downward through the threaded cooperation between the internal threaded sleeve and the first lifting screw, and enter the extruder barrel through the feeding hopper for extrusion. The whole feeding process does not require manual continuous holding of the rubber strip raw material for operation. It only needs to fix the rubber strip raw material between the two positioning clips and fix it with the positioning clips, which greatly reduces the physical and mental expenditure of workers;

[0018] ②. By setting up a cleaning mechanism, the rubber strip raw material can be lowered into the extruder barrel while the newly fixed rubber strip raw material can be cleaned by a brush roller. This can minimize the dust and impurity content on the rubber strip raw material, thereby improving the extrusion quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A front view schematic diagram of a first embodiment of a bicycle inner tube tread extruder provided by the present invention;

[0020] Figure 2 A schematic diagram of the partial internal structure of the extruder barrel of the first embodiment of the bicycle inner tube tread extruder provided by the present invention;

[0021] Figure 3 A schematic diagram of the disassembled state of the extruder barrel and the die sleeve in the first embodiment of the bicycle inner tube tread extruder provided by the present invention;

[0022] Figure 4A schematic diagram of the assembly state of the axle rod and the side frame plate in the first embodiment of the bicycle inner tube tread extruder provided by the present invention;

[0023] Figure 5 A schematic diagram of the internal structure of a mold sleeve in a first embodiment of a bicycle inner tube tread extruder provided by the present invention;

[0024] Figure 6 A schematic diagram of the connection structure of the central rod and four load-bearing horizontal bars in the first embodiment of the bicycle inner tube tread extruder provided by the present invention;

[0025] Figure 7 A schematic diagram of the connection structure between the second telescopic cylinder and the placing table in the first embodiment of the bicycle inner tube tread extruder provided by the present invention;

[0026] Figure 8 A schematic diagram of the assembly state of the side frame plate, the connecting plate and the cover box in the first embodiment of the bicycle inner tube tread extruder provided by the present invention;

[0027] Fig. 9 A schematic diagram of the connection structure of the first tread frame and the cover box in the first embodiment of the bicycle inner tube tread extruder provided by the present invention;

[0028] Fig.10 A schematic diagram of the internal structure of a covering box in a first embodiment of a bicycle inner tube tread extruder provided by the present invention;

[0029] Fig.11 A front view schematic diagram of a second embodiment of a bicycle inner tube tread extruder provided by the present invention;

[0030] Fig.12 A schematic diagram of the assembly of an annular hollow plate in a second embodiment of a bicycle inner tube tread extruder provided by the present invention;

[0031] Fig.13 A schematic structural diagram of a rectangular frame in a second embodiment of a bicycle inner tube tread extruder provided by the present invention;

[0032] Fig.14 for Fig.13 The cross-sectional structural diagram shown;

[0033] Fig.15 A schematic diagram of the internal structure of two annular hollow plates in the second embodiment of the bicycle inner tube tread extruder provided by the present invention;

[0034] Fig.16 A front view schematic diagram of a third embodiment of a bicycle inner tube tread extruder provided by the present invention;

[0035] Fig.17A schematic diagram of the connection state of a square plug rod and a die sleeve in the third embodiment of the bicycle inner tube tread extruder provided by the present invention;

[0036] Fig.18 A schematic diagram of a disassembled state of a fixing seat and a square insert rod in a third embodiment of a bicycle inner tube tread extruder provided by the present invention;

[0037] Fig.19 This is a front view schematic diagram of the connection structure between the gantry and the rotating shaft in the third embodiment of the bicycle inner tube tread extruder provided by the present invention.

[0038] Numbers in the figure: 1. Extruder body; 2. Support column; 3. Extruder barrel; 4. Extrusion screw; 5. Speed ​​reducer; 6. Speed ​​reducer motor; 7. Feed hopper; 8. Mold sleeve; 9. Embedded ring; 10. Support frame; 11. Axis rod; 12. Bearing horizontal bar; 13. Slide; 14. Support platform; 15. First rodless cylinder; 16. Linkage bar; 17. Internal threaded sleeve; 18. First lifting screw; 19. U-shaped frame; 20. First clamping cylinder; 21. Positioning clip; 22. Side frame plate; 23. First telescopic cylinder; 24. Connecting plate; 25. Second clamping cylinder; 26. First U-shaped frame; 27. Cover box; 28. Second lifting screw; 29. ​​Lifting bar; 30. Second U-shaped Frame; 31, roller; 32, brush roller; 33, ash hopper; 34, second telescopic cylinder; 35, display table; 36, ash box; 37, load-bearing plate; 38, third telescopic cylinder; 39, rectangular frame; 40, annular hollow plate; 41, fourth telescopic cylinder; 42, arc-shaped water pipe; 43, sprinkler head; 44, water pump; 45, connecting pipe; 46, connecting hose; 47, drain pipe; 48, third clamping cylinder; 49, arc-shaped mounting plate; 50, arc-shaped sponge strip; 51, water diversion bucket; 52, cross beam; 53, gantry; 54, rotating shaft; 55, cross connecting plate; 56, second rodless cylinder; 57, push block; 58, fixing seat; 59, mounting slot; 60, square plug rod. DETAILED DESCRIPTION

[0039] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0040] First embodiment:

[0041] Please refer to Figure 1-Figure 10In the first embodiment of the present invention, a bicycle inner tube tread extruder comprises: an extruder body 1 and an extruder barrel 3 arranged above the extruder body 1, the extruder barrel 3 is fixedly connected to the extruder body 1 through two support columns 2, an extrusion screw 4 is rotatably installed on the inner wall of one side of the extruder barrel 3, a reducer 5 is fixed on the top of the extruder body 1, the output shaft of the reducer 5 is fixedly connected to one end of the extrusion screw 4, and a reduction motor 6 is fixed on one side of the reducer 5, a lower hopper 7 is fixed on the extruder barrel 3, and the rubber strip raw material can be put into the extruder barrel 3 for extrusion, a die sleeve 8 is threadedly provided on one end of the extruder barrel 3 away from the reducer 5, and a support frame 10 is fixed on the top of the extruder body 1, A same shaft rod 11 is rotatably installed on the support frame 10, and a first servo motor is fixed on the outer wall of one side of the support frame 10, and a circular gear is fixedly sleeved on the output shaft and the shaft rod 11, and the two circular gears are meshed with each other, and four load-bearing horizontal bars 12 distributed in a circular array are fixed on the shaft rod 11, and in order to ensure the stability of the load-bearing horizontal bars 12, four stabilizing folding plates distributed in a circular array are fixed on the shaft rod 11, and the ends of the four load-bearing horizontal bars 12 are fixedly connected to the four stabilizing folding plates respectively, and slide seats 13 are slidably installed on the four load-bearing horizontal bars 12, and support platforms 14 are fixed on the tops of the four slide seats 13, and four first rodless cylinders 15 distributed in a circular array are fixed on the shaft rod 11. A linkage bar 16 is fixed on the slider of the rod cylinder 15, and the four linkage bars 16 are fixedly connected to the four support platforms 14 respectively. By controlling the starting mode of the first rodless cylinder 15, the support platform 14 can move left or right, and the four support platforms 14 are rotatably installed with an internal threaded sleeve 17, and the four internal threaded sleeves 17 are threadedly installed with a first lifting screw 18. In order to drive the internal threaded sleeve 17 to rotate, a second servo motor is fixed on the top of the four support platforms 14, and the output shafts of the four second servo motors are fixed with a first bevel gear. The four internal threaded sleeves 17 are fixedly sleeved with a second bevel gear. The four first bevel gears are respectively meshed with the four second bevel gears. The four first lifting screws 18 are A U-shaped frame 19 is fixed at the bottom end, and two first clamping cylinders 20 are fixed in the four U-shaped frames 19. Positioning clips 21 are fixed on the output shafts of the eight first clamping cylinders 20. The positioning clips 21 can tightly clamp the rubber strip raw material to facilitate unloading. In addition, limit rods are slidably installed on the four support platforms 14, and the bottom ends of the four limit rods are respectively fixed to the four U-shaped frames 19, so that when the internal threaded sleeve 17 rotates, the first lifting screw 18 can only lift and lower the U-shaped frame 19 in a straight line; and a side frame plate 22 is fixed on one side of the extruder body 1, and a dust cleaning mechanism is provided thereon, and the rubber strip is covered with two covering boxes 27 in the dust cleaning mechanism, and then the rubber strip is cleaned with a brush roller 32.

[0042] In the threaded connection between the above-mentioned die sleeve 8 and the extruder barrel 3, external threads are provided on the outer peripheral wall of the extruder barrel 3, and internal threads are provided on the inner peripheral wall of the die sleeve 8. The external threads and the internal threads are screwed together to form a threaded installation method. An embedded ring 9 is fixed on the inner wall of the die sleeve 8, and one side of the embedded ring 9 abuts against the end face of the extruder barrel 3, so that the die sleeve 8 has a fixed sleeving depth.

[0043] In the above-mentioned dust cleaning mechanism, there is a first telescopic cylinder 23, which is fixed on the side of the side frame plate 22 close to the extruder body 1. The output shaft of the first telescopic cylinder 23 penetrates through the side frame plate 22 and is movably connected to the side frame plate 22. A connecting plate 24 is fixed on the output shaft of the first telescopic cylinder 23. Two second clamping cylinders 25 are fixed on the connecting plate 24. Couplings are fixed on the output shafts of the two second clamping cylinders 25 through bolts. On one side of the two couplings close to each other, a first C-shaped frame 26 is fixed. On one side of the two first C-shaped frames 26 close to each other, a covering box 27 is fixed. Openings are provided at the tops of the two covering boxes 27, and the two openings can allow the rubber strip raw material to pass through. The bottoms of the two covering boxes 27 are both set as openings. Second lifting screws 28 are rotatably installed in the two first C-shaped frames 26. Lifting strips 29 are threadedly installed on the two second lifting screws 28. One side of the two lifting strips 29 close to each other extends into the two covering boxes 27 respectively and is slidably connected to the corresponding covering box 27. Second C-shaped frames 30 are fixed on one side of the two lifting strips 29 close to each other. Brush rollers 32 are fixedly sleeved on the two roller shafts 31 rotatably installed in the two second C-shaped frames 30. Motors are fixed on the outer wall of one side of the two second C-shaped frames 30. The output shafts of the two motors are respectively fixedly connected to one end of the two roller shafts 31, and are connected through a coupling, which is convenient for removing the covering box 27 to clean and replace the brush roller 32 inside. Third servo motors are fixed on the tops of the two first C-shaped frames 26, and the output shafts of the two third servo motors are respectively fixedly connected to the tops of the two second lifting screws 28.

[0044] In this method, in order to collect the removed dust and impurities, a dust receiving hopper 33 is fixed on the side of the side frame plate 22 away from the extruder body 1. The dust receiving hopper 33 is located below the covering box 27 and is very close to it, ensuring that the dust and impurities can be discharged into the dust receiving box 36 in the largest amount. A second telescopic cylinder 34 is fixed on the side of the connecting plate 24 away from the side frame plate 22. Placement platforms 35 are fixed on the output shafts of the two second telescopic cylinders 34. Placement grooves are provided on the two placement platforms 35. Dust receiving boxes 36 are provided in the two placement grooves. A shuttle hole is provided at the top of the dust receiving box 36. The bottom end of the provided dust receiving hopper 33 penetrates through the shuttle hole and extends into the dust receiving box 36.

[0045] In this embodiment, in order to ensure that the lifting bar 29 can form a linear motion, a limit slide is provided on the side of the two cover boxes 27 away from each other, and the two lifting bars 29 respectively penetrate the two limit slides, and the two lifting bars 29 respectively contact the inner walls of the two limit slides.

[0046] In this embodiment

[0047] In the initial state, the output shaft of the second telescopic cylinder 34 is in an extended state;

[0048] When it is necessary to put the rubber strip raw material from the lower hopper 7 into the extruder barrel 3 for extrusion, first start the first rodless cylinder 15 close to the side frame plate 22, and the slider thereon drives the corresponding linkage bar 16 to move horizontally, so that the corresponding support platform 14 is pushed together with the U-shaped frame 19 in the direction away from the covering box 27, so that there is no obstruction of the covering box 27 below the U-shaped frame 19, and then the corresponding second servo motor is started in the positive direction, and the corresponding internal threaded sleeve 17 can be driven to rotate through the engagement between the first bevel gear and the second bevel gear. At this time, the U-shaped frame 19 directly descends, and after it descends to a height convenient for manual operation, the second servo motor is turned off, and then a rubber strip raw material is placed between the corresponding two positioning clips 21, and then the output shafts of the corresponding two first clamping cylinders 20 are started to extend to clamp the rubber strip raw material, and then the corresponding first servo motor is started in the reverse direction to bring the rubber strip raw material up to a high place, and then the corresponding first rodless cylinder 15 is started to bring the U-shaped frame 19 holding the rubber strip raw material back to its original position;

[0049] Subsequently, the output shaft of the first telescopic cylinder 23 is started to extend, so that the two covering boxes 27 move horizontally, and finally the clamped rubber strip material is located between the two covering boxes 27, and then the output shafts of the two second clamping cylinders 25 are started to extend, and the rubber strip material is clamped in the two notches by using the two covering boxes 27. At this time, the hair strips on the two brush rollers 32 are fully in contact with the rubber strip, and then the motor is started, and the brush rollers 32 begin to rotate, and then the output shafts of the two third servo motors are started to rotate slowly, and the two third servo motors respectively drive the two second lifting screws 28 to rotate, and the two lifting strips 29 begin to slowly descend. During the descent, the two rotating brush rollers 32 can clean the dust on the rubber strip material, and the cleaned dust directly passes through the dust receiving hopper 3 3 falls into the ash receiving box 36. When the dust cleaning from top to bottom is completed, the third servo motor is started in the reverse direction to bring the brush roller 32 back to its original position, and the output shaft of the second clamping cylinder 25 is started to retract to loosen the rubber strip raw material, and the output shaft of the first telescopic cylinder 23 is started to retract to separate the cover box 27 from the rubber strip raw material. Then the first servo motor is started, and the axis rod 11 can be driven to rotate through the meshing between the two circular gears. After it rotates 90°, the first servo motor is turned off. At this time, the four support platforms 14 have completed the position alternation, and then the first rodless cylinder 15 close to the side frame plate 22 is started again to push the corresponding U-shaped frame 19 away from the cover box 27. Then, the next rubber strip raw material is fixed in the same way as above, and the dust cleaning work is carried out at the same time;

[0050] After that, in this reciprocating manner, after each rubber strip raw material is fixed and cleaned, the first servo motor is continued to be started to drive the shaft rod 11 to rotate 90° until the rubber strip raw materials are fixed in the four U-shaped frames 19. At this time, there is a rubber strip raw material on the upper side of the lower hopper 7, and then the output shaft of the second servo motor is started to rotate slowly in the positive direction, and the rubber strip raw material begins to gradually decline. When the rubber strip raw material enters the extruder barrel 3 through the lower hopper 7, the extrusion work begins. When the rubber strip raw material is about to be used up, the output shaft of the corresponding first clamping cylinder 20 is started to retract, and the rubber strip raw material is released, and it directly falls into the lower hopper 7 to complete the final extrusion operation. At this time, the second servo motor is started in the reverse direction to bring the empty U-shaped frame 19 back to the original height, and then the first servo motor is started to rotate the shaft rod 11 90°, so that another rubber strip raw material is above the lower hopper 7, and then the material can be unloaded in the same way as above;

[0051] During the process of feeding and extruding, when an empty U-shaped frame 19 rotates to one side of the covering box 27, the next rubber strip material can be installed and cleaned in the above-mentioned way of fixing and cleaning the rubber strip material. After that, every time the shaft rod 11 rotates 90°, an empty U-shaped frame 19 rotates to one side of the covering box 27, and then the rubber strip material is installed and cleaned in the same way, and this reciprocating process is performed, thereby forming a working form in which the material is fed into the extruder barrel 3 while the next rubber strip material can be fixed again.

[0052] After the extrusion work is completed, the die sleeve 8 can be directly unscrewed from the extruder barrel 3, so that the residual materials at the port of the die sleeve 8 and the extruder barrel 3 can be cleaned conveniently;

[0053] In addition, after being used for a period of time, the ash receiving box 36 will be filled with a lot of dust and impurities. At this time, the output shaft of the second telescopic cylinder 34 can be started to retract, and the ash receiving box 36 can be brought downward to separate it from the ash receiving hopper 33. Then, the ash receiving box 36 can be directly removed from the display table 35, and the dust and impurities can be poured out.

[0054] Compared with the related art, the bicycle inner tube tread extruder provided by the present invention has the following beneficial effects:

[0055] ①. The rubber strip raw material can be mechanically clamped by the first clamping cylinder 20 and the positioning clip 21, and then the clamped rubber strip raw material can be automatically driven downward through the threaded cooperation between the internal threaded sleeve 17 and the first lifting screw 18, and enter the extruder barrel 3 through the discharge hopper 7 for extrusion. The whole discharge process does not require manual continuous holding of the rubber strip raw material for operation, and only needs to fix the rubber strip raw material between the two positioning clips 21 and fix it with the positioning clip 21, which greatly reduces the physical and mental expenditure of workers;

[0056] ②. By setting up a cleaning mechanism, the rubber strip raw material can be lowered into the extruder barrel 3 while the newly fixed rubber strip raw material can be cleaned by the brush roller 32. This can minimize the dust and impurity content on the rubber strip raw material, thereby improving the extrusion quality.

[0057] Second embodiment:

[0058] Based on the bicycle inner tube tread extruder provided in the first embodiment of the present application, the second embodiment of the present application provides another bicycle inner tube tread extruder. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0059] The second embodiment of the present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0060] Please refer to Figure 11-Figure 15 The bicycle inner tube tread extruder also includes a bearing plate 37, which is fixed on the top of the extruder body 1. The extruder barrel 3 is set to penetrate the bearing plate 37, and two third telescopic cylinders 38 are fixed on the side of the bearing plate 37 close to the reducer 5. The third telescopic cylinder 38 penetrates the support column 2 away from the reducer 5. The output shafts of the two third telescopic cylinders 38 penetrate the bearing plate 37 and are slidably connected to the bearing plate 37. The same rectangular frame 39 is fixed on the output shafts of the two third telescopic cylinders 38, and two annular hollow plates 40 are provided in the rectangular frame 39. The inner walls of the two annular hollow plates 40 are in contact with the mold sleeve 8, so as to form a relatively sealed cooling environment. Fourth telescopic cylinders 41 are fixed on the top outer wall and the bottom outer wall of the rectangular frame 39. The output shafts of the two fourth telescopic cylinders 41 extend into the rectangular frame 39 and are fixedly connected to the corresponding annular hollow plates 40. The output shaft of the fourth telescopic cylinder 41 is slidably connected to the rectangular frame 39, and the An arc-shaped water pipe 42 is fixed in the annular hollow plate 40, and a plurality of water spray heads 43 are fixed on the inner wall of the arc-shaped water pipe 42. The water spray heads 43 correspond to the outer wall of the mold sleeve 8. When spraying cooling water, the cooling water can be directly sprayed on the mold sleeve 8 to form a cooling operation. A water pump 44 is fixed on the top of the carrier plate 37, and one end of a connecting hose 46 is fixed to the water outlet end of the water pump 44. The other end of the connecting hose 46 is fixed to one end of a connecting pipe 45. The other end of the connecting pipe 45 extends into the annular hollow plate 40 and is connected to the arc-shaped water pipe 42. The arc-shaped water pipe 42 is fixedly connected, and during use, the water pump 44 is connected to the external cooling water pool, and the cooling water can be directly discharged into the arc-shaped water pipe 42. The connecting hose 46 is relatively long as a whole and can be used in conjunction with the movement of the connecting pipe 45. A water diverter 51 is fixed on the side of the extruder body 1 away from the side frame plate 22, and a drain pipe 47 is fixed on one side of the annular hollow plate 40 located below, and the bottom end of the drain pipe 47 is located above the water diverter 51, so that the cooling water after use can be discharged smoothly.

[0061] In the above method, after the mold sleeve 8 is cooled, in order to quickly remove the water stains thereon and facilitate manual unscrewing of the mold sleeve 8, two third clamping cylinders 48 are fixed on the side of the rectangular frame 39 away from the supporting plate 37, and arc-shaped mounting plates 49 are fixed on the output shafts of the two third clamping cylinders 48. Arc-shaped sponge strips 50 are pasted on the inner walls of the two arc-shaped mounting plates 49, and the inner diameter of the arc-shaped sponge strips 50 is slightly smaller than the outer diameter of the mold sleeve 8. In this way, when the inner wall of the arc-shaped sponge strips 50 contacts the mold sleeve 8, it will be deformed, thereby fitting tightly with the outer wall of the mold sleeve 8 to completely absorb the water stains.

[0062] In this embodiment

[0063] In the initial state, the output shafts of the third telescopic cylinder 38 and the fourth telescopic cylinder 41 are both in the retracted state, and the water inlet port of the water pump 44 is connected to the external cooling water pool through a pipeline, and the drainage port of the water diversion bucket 51 is connected to the external wastewater pool;

[0064] During the extrusion process, the extruder barrel 3 will generate a relatively high temperature, and the die sleeve 8 is in direct contact with the barrel 3, so it will also generate a certain high temperature. Whenever the extrusion process is completed, in order to ensure the safety of the operation, it is generally necessary to wait for a period of time to allow the barrel 3 to cool naturally, and the barrel 8 can only be unscrewed when the temperature on the barrel 8 is basically dissipated. This will cause the next extrusion process to wait for a long time, thereby reducing the extrusion efficiency.

[0065] In order to shorten this waiting time and improve production efficiency, after the extrusion work is completed, the output shafts of the two third telescopic cylinders 38 can be directly started to extend, and the rectangular frame 39 can be pushed out, so that the mold sleeve 8 is located in the rectangular frame 39, and then the output shafts of the two fourth telescopic cylinders 41 can be started to extend, so that the two annular hollow plates 40 are close to each other and finally contact the outer wall of the mold sleeve 8. Then, the water pump 44 is started, and the water pump 44 draws cooling water, and the cooling water is passed to the arc water pipe 42 through the connecting pipe 45, and finally sprayed on the mold sleeve 8 through the water spray head 43, so as to directly cool it, and the used cooling water is directly discharged through the drain pipe 47. When the water cooling is finished, the output shaft of the fourth telescopic cylinder 41 is started to retract, and the annular hollow plate 40 is separated from the mold sleeve 8. Then, the output shafts of the two third clamping cylinders 48 are started to extend, and the two arc-shaped sponge strips 50 are close to each other and finally contact each other. Then, the output shaft of the third telescopic cylinder 38 is started to retract, and the rectangular frame 39 moves horizontally with the two arc-shaped sponge strips 50. During the movement, since the outer ring wall diameter of the mold sleeve 8 is slightly larger than the inner diameter of the arc-shaped sponge strip 50, when the two are in contact, the inner wall of the arc-shaped sponge strip 50 will be deformed so that it is tightly sleeved on the mold sleeve 8 and moves horizontally. In this process, the arc-shaped sponge strip 50 can absorb the water stains on it.

[0066] Then, the die sleeve 8 can be rotated to be unscrewed from the extruder barrel 3 .

[0067] Third embodiment:

[0068] Based on the bicycle inner tube tread extruders provided in the first and second embodiments of the present application, the third embodiment of the present application provides another bicycle inner tube tread extruder. The third embodiment is only a preferred mode of the first or second embodiment, and the implementation of the third embodiment will not affect the independent implementation of the first or second embodiment.

[0069] The third embodiment of the present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0070] Please refer to Figure 16-Figure 19 In the third embodiment of the bicycle inner tube tread extruder provided by the present invention: the die sleeve 8 is slidably sleeved on the extruder barrel 3, a cross beam 52 is fixed on one side of the extruder body 1, a gantry 53 is fixed on the top of the cross beam 52, a rotating shaft 54 ​​is rotatably mounted on the gantry 53, a fourth servo motor is fixed on the side of the gantry 53 away from the extruder barrel 3, the output shaft of the fourth servo motor is fixedly connected to one end of the rotating shaft 54, a cross connecting plate 55 is fixed on the end of the rotating shaft 54 ​​close to the die sleeve 8, and the cross connecting plate 55 is fixed on the end of the rotating shaft 54 ​​close to the die sleeve 8. Four second rodless cylinders 56 distributed in a circular array are fixed to the side of the connecting plate 55 close to the mold sleeve 8, push blocks 57 are fixed to the sliders of the four second rodless cylinders 56, square plug rods 60 are fixed to the sides of the four push blocks 57 away from the gantry 53, a fixing seat 58 is fixed to the side of the mold sleeve 8 close to the gantry 53, and an installation slot 59 is provided on the side of the fixing seat 58 close to the gantry 53, one side of the square plug rods 60 extends into the installation slot 59 and is fixedly connected to the fixing seat 58 by bolts.

[0071] In this embodiment

[0072] There are a large number of mold sleeves 8, and the models are different. In the initial state, mold sleeves 8 of different models are installed on the four square plug rods 60;

[0073] When it is necessary to extrude treads of different thicknesses or widths, in order to facilitate the replacement of the die sleeve 8, the second rodless cylinder 56 corresponding to the die sleeve 8 in use can be started first, and the slider thereon will move with the corresponding square plug rod 60 and the die sleeve 8 in the direction away from the extruder barrel 3, and the die sleeve 8 in use will be removed from the extruder barrel 3, and then the fourth servo motor will be started, and its output shaft will drive the rotating shaft 54 ​​to rotate, and the cross connecting plate 55 will rotate accordingly. When the die sleeve 8 to be used is rotated to correspond horizontally with the extruder barrel 3, the fourth servo motor will be turned off, and then the corresponding second rodless cylinder 56 will be started, and the corresponding die sleeve 8 will move toward the direction of the extruder barrel 3, and finally it will be put on the extruder barrel 3, and then the extrusion work can be carried out. The replacement of the entire die sleeve 8 does not require manual intervention, which improves the convenience.

[0074] Moreover, in later use, when it is necessary to use a mold sleeve 8 of another type, the mounting thread between the unused mold sleeve 8 and the square plug rod 60 can be directly unscrewed and replaced with a mold sleeve 8 of another type, which is more flexible.

[0075] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A bicycle inner tube tread extruder, comprising an extruder body (1) and an extruder barrel (3) arranged above the extruder body (1), an extrusion screw (4) being rotatably mounted on an inner wall of one side of the extruder barrel (3), characterized in that: Two support columns (2) are fixedly mounted on the top of the extruder body (1), and the tops of the two support columns (2) are fixedly connected to the extruder barrel (3). A reducer (5) is fixedly mounted on the top of the extruder body (1), and the output shaft of the reducer (5) is fixedly connected to one end of the extrusion screw (4). A reduction motor (6) is fixedly mounted on one side of the reducer (5). A lower hopper (7) is fixedly mounted on the extruder barrel (3), and a mold sleeve (8) is detachably mounted on the end of the extruder barrel (3) away from the reducer (5). A support frame (10) is fixedly mounted on the top of the extruder body (1), and the same shaft rod (11) is rotatably mounted on the support frame (10). Four bearing horizontal bars (12) distributed in a ring array are fixedly mounted on the shaft rod (11), and the four bearing horizontal bars (12) are arranged in a ring array. ) are all slidably mounted with a slide seat (13), a support platform (14) is fixedly mounted on the top of the four slide seats (13), four first rodless cylinders (15) distributed in a ring array are fixedly mounted on the axial rod (11), and linkage bars (16) are fixedly mounted on the sliders of the four first rodless cylinders (15), and the four linkage bars (16) are respectively fixedly connected to the four support platforms (14), and an internal threaded sleeve (17) is rotatably mounted on the four support platforms (14), and a first lifting screw (18) is threadedly mounted in the four internal threaded sleeves (17), and a U-shaped frame (19) is fixedly mounted on the bottom end of the four first lifting screws (18), and two first clamping cylinders (20) are fixedly mounted in the four U-shaped frames (19), and positioning clips (21) are fixedly mounted on the output shafts of the eight first clamping cylinders (20); A side frame plate (22) is fixedly mounted on one side of the extruder body (1), and a dust cleaning mechanism is provided on the side frame plate (22). Two covering boxes (27) in the dust cleaning mechanism are used to cover the rubber strip, and then the rubber strip is cleaned using a brush roller (32); The outer wall of the extruder barrel (3) is provided with a male thread, the inner wall of the die sleeve (8) is provided with a female thread, the male thread is screwed together with the female thread, an inner ring (9) is fixedly mounted on the inner wall of the die sleeve (8), one side of the inner ring (9) abuts against the end face of the extruder barrel (3); The dust cleaning mechanism includes a first telescopic cylinder (23). The first telescopic cylinder (23) is fixedly installed on one side of the side frame plate (22) close to the extruder body (1). The output shaft of the first telescopic cylinder (23) penetrates through the side frame plate (22) and is movably connected to the side frame plate (22). A connecting plate (24) is fixedly installed on the output shaft of the first telescopic cylinder (23). Two second clamping cylinders (25) are fixedly installed on the connecting plate (24). Couplings are fixedly installed on the output shafts of the two second clamping cylinders (25) through bolts. A first C-shaped frame (26) is fixedly installed on one side of the two couplings close to each other. A covering box (27) is fixedly installed on one side of the two first C-shaped frames (26) close to each other. The bottoms of the two covering boxes (27) are both provided with openings. A second lifting screw rod (28) is rotatably installed in each of the two first C-shaped frames (26). A lifting strip (29) is threadedly installed on each of the two second lifting screw rods (28). One side of the two lifting strips (29) close to each other extends into the two covering boxes (27) respectively and is slidably connected to the corresponding covering box (27). A second C-shaped frame (30) is fixedly installed on one side of the two lifting strips (29) close to each other. A roller shaft (31) is rotatably installed in each of the two second C-shaped frames (30). A brush roller (32) is fixedly sleeved on each of the two roller shafts (31). A motor is fixedly installed on the outer wall of one side of each of the two second C-shaped frames (30). The output shafts of the two motors are respectively fixedly connected to one end of the two roller shafts (31).

2. The bicycle inner tube tread extruder according to claim 1, characterized in that: A dust receiving hopper (33) is fixedly installed on the side of the side frame plate (22) away from the extruder body (1). The dust receiving hopper (33) is located below the covering box (27). A second telescopic cylinder (34) is fixedly installed on the side of the connecting plate (24) away from the side frame plate (22). A placing table (35) is fixedly installed on the output shafts of the two second telescopic cylinders (34). Placing grooves are formed in the two placing tables (35). A dust receiving box (36) is arranged in each of the two placing grooves. A shuttle hole is formed in the top of the dust receiving box (36). The bottom end of the dust receiving hopper (33) penetrates through the shuttle hole and extends into the dust receiving box (36).

3. The bicycle inner tube tread extruder according to claim 1, characterized in that: A first servo motor is fixedly installed on the outer wall of one side of the support frame (10). Circular gears are fixedly sleeved on the output shaft of the first servo motor and the central axis rod (11). The two circular gears are meshed with each other. Four stabilizing folding plates are fixedly installed on the central axis rod (11) and are distributed in an annular array. The ends of the four load single bars (12) are respectively fixedly connected to the four stabilizing folding plates.

4. The bicycle inner tube tread extruder according to claim 1, characterized in that: A second servo motor is fixedly installed on the top of each of the four support platforms (14). A first bevel gear is fixedly installed on the output shaft of each of the four second servo motors. A second bevel gear is fixedly sleeved on each of the four internal thread sleeves (17). The four first bevel gears are respectively meshed with the four second bevel gears.

5. The bicycle inner tube tread extruder according to claim 1, characterized in that: A third servo motor is fixedly installed on the top of each of the two first C-shaped frames (26). The output shafts of the two third servo motors are respectively fixedly connected to the tops of the two second lifting screws (28). A limiting slideway is opened on one side of each of the two covering boxes (27) away from each other. The two lifting bars (29) respectively penetrate through the two limiting slideways, and the two lifting bars (29) are respectively in contact with the inner walls of the two limiting slideways.

6. The bicycle inner tube tread extruder according to claim 1, characterized in that: A bearing plate (37) is fixedly installed on the top of the extruder body (1). The extruder barrel (3) penetrates through the bearing plate (37). Two third telescopic cylinders (38) are fixedly installed on one side of the bearing plate (37) close to the reducer (5). The third telescopic cylinders (38) penetrate through the support columns (2) away from the reducer (5). The output shafts of the two third telescopic cylinders (38) penetrate through the bearing plate (37) and are slidably connected to the bearing plate (37). The output shafts of the two third telescopic cylinders (38) are fixedly installed with the same rectangular frame (39). Two annular hollow plates (40) are arranged in the rectangular frame (39). The inner walls of the two annular hollow plates (40) are respectively in contact with the die sleeve (8). Fourth telescopic cylinders (41) are fixedly installed on the outer walls of the top and bottom of the rectangular frame (39). The output shafts of the two fourth telescopic cylinders (41) extend into the rectangular frame (39) and are fixedly connected to the corresponding annular hollow plates (40). The output shafts of the fourth telescopic cylinders (41) are slidably connected to the rectangular frame (39). An arc-shaped water pipe (42) is fixedly installed in the annular hollow plate (40) located above. A plurality of water spray heads (43) are fixedly installed on the inner circumferential wall of the arc-shaped water pipe (42). The water spray heads (43) correspond to the outer circumferential wall of the die sleeve (8). A water pump (44) is fixedly installed on the top of the bearing plate (37). One end of a connecting hose (46) is fixedly installed at the water outlet end of the water pump (44). The other end of the connecting hose (46) is fixedly installed with one end of a connecting pipe (45). The other end of the connecting pipe (45) extends into the annular hollow plate (40) and is fixedly connected to the arc-shaped water pipe (42). A water diversion hopper (51) is fixedly installed on one side of the extruder body (1) away from the side frame plate (22). A drain pipe (47) is fixedly installed on one side of the annular hollow plate (40) located below. The bottom end of the drain pipe (47) is located above the water diversion hopper (51).

7. The bicycle inner tube tread extruder according to claim 6, characterized in that: Two third clamping cylinders (48) are fixedly mounted on one side of the rectangular frame (39) away from the supporting plate (37), and arc-shaped mounting plates (49) are fixedly mounted on the output shafts of the two third clamping cylinders (48). Arc-shaped sponge strips (50) are adhered to the inner walls of the two arc-shaped mounting plates (49), and the inner diameter of the arc-shaped sponge strips (50) is slightly smaller than the outer diameter of the mold sleeve (8).

8. The bicycle inner tube tread extruder according to claim 1, characterized in that: The die sleeve (8) is slidably mounted on the extruder barrel (3); a crossbeam (52) is fixedly mounted on one side of the extruder body (1); a gantry (53) is fixedly mounted on the top of the crossbeam (52); a rotating shaft (54) is rotatably mounted on the gantry (53); a fourth servo motor is fixedly mounted on a side of the gantry (53) away from the extruder barrel (3); an output shaft of the fourth servo motor is fixedly connected to one end of the rotating shaft (54); a cross connecting plate (55) is fixedly mounted on one end of the rotating shaft (54) close to the die sleeve (8); and the cross connecting plate (55) is close to the die sleeve (8). ) is fixedly mounted on one side of the mold sleeve (8) and distributed in a circular array; push blocks (57) are fixedly mounted on the sliders of the four second rodless cylinders (56); square plug rods (60) are fixedly mounted on the sides of the four push blocks (57) away from the gantry (53); a fixing seat (58) is fixedly mounted on the side of the mold sleeve (8) close to the gantry (53); a mounting slot (59) is provided on the side of the fixing seat (58) close to the gantry (53); one side of one of the square plug rods (60) extends into the mounting slot (59) and is fixedly connected to the fixing seat (58) by bolts.

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