Automatic rubber sole trimming machine

Abstract

The application discloses a kind of rubber shoe sole automatic trimming machine, including fixed mould mechanism, fixed mould mechanism includes cabinet, protective cover, carousel, first motor, first transmission part, lower clamp, first push rod, upper clamp and shoe sole, swing mechanism, swing mechanism includes support, swing arm, sleeve, second push rod, edge grinding mechanism, edge grinding mechanism includes main shaft, second motor, second transmission part and grinding wheel, slag removal mechanism, slag removal mechanism includes third push rod, shell, base bar and bristle;Slag blowing mechanism, slag blowing mechanism includes air compressor, nozzle and gas pipe.The application is provided with movable slag removal mechanism inside protective cover, when grinding wheel works for a certain time, third push rod is immediately started, drives slag removal mechanism to be close to grinding wheel, and grinding wheel rotates at low speed, bristle and grinding wheel relative motion, remove the rubber microparticle adhered to the surface of grinding wheel;Meanwhile, nozzle sprays gas, accelerates rubber microparticle to separate, further improves the efficiency that slag removal mechanism removes rubber microparticle.

Description

Technical Field

[0001] This invention relates to the field of rubber shoe processing technology, specifically to an automatic edge trimming machine for rubber shoe soles. Background Technology

[0002] In the footwear industry, rubber soles are primarily manufactured using compression molding or injection molding processes. Regardless of the process, during the vulcanization or cooling and setting of the rubber compound within the mold cavity, some inevitably overflows along the mold's parting line, venting channels, and other gaps, forming a thin, excess layer of rubber burrs, commonly known as rough edges. Traditionally, these burrs were removed manually or by hand in conjunction with a benchtop edge trimming machine. Later, more efficient automatic sole edge grinding machines emerged.

[0003] Automatic rubber sole edge grinding machines typically use upper and lower clamps to hold and position the rubber sole vertically, and drive the sole to rotate horizontally around the vertical axis. At the same time, a grinding wheel located on the side of the sole approaches and contacts the rotating side of the sole. As the clamps drive the sole to rotate at a constant speed, the grinding wheel cuts off and smooths the excess burrs on the sole, thus completing the edge trimming operation of the entire sole side in one clamping and rotation.

[0004] However, in actual operation, while the grinding wheel is grinding the rubber material at high speed, the inherent viscoelasticity and low melting point of the rubber itself mean that the frictional heat generated during grinding is sufficient to soften or even melt the trace amount of rubber at the contact point. This softened rubber quickly adheres to and fills the gaps between the abrasive grains of the grinding wheel. As processing continues, the abrasive grains are coated with layers of rubber residue, forming a dense "rubber coating" on the surface of the grinding wheel. This reduces the sharp cutting ability of the grinding wheel, drastically decreases grinding efficiency, and may even make it impossible to effectively remove burrs. Secondly, the rubber coating on the surface of the grinding wheel will continuously slide against the sole body during subsequent grinding, rather than cutting, causing a surge in heat in the grinding area. This can easily burn the edges of the sole, causing yellowing or charring defects in the material. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic edge trimming machine for rubber shoe soles to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic rubber shoe sole trimming machine, comprising a mold fixing mechanism, the mold fixing mechanism including a cabinet, a protective cover fixedly installed on the top of the cabinet, a turntable rotatably mounted on the top surface of the cabinet, a first motor fixedly installed inside the cabinet, a first transmission component connected to the output end of the first motor and the bottom of the turntable, a lower clamp fixedly mounted on the top surface of the turntable, a first push rod fixedly mounted on the top surface inside the protective cover, an upper clamp rotatably connected to the output end of the first push rod, a shoe sole placed between the lower clamp and the first push rod, and a swing mechanism installed inside the protective cover, the swing mechanism including a support fixed to the inner side wall of the protective cover, one end of a swing arm rotatably mounted on the support, the other end of the swing arm being vertically... A sleeve is fixedly mounted, and a second push rod is also fixedly mounted on the inner wall of the protective cover. The output end of the second push rod is rotatably connected to one end of the swing arm. A grinding mechanism is provided inside the sleeve. The grinding mechanism includes a main shaft rotatably mounted inside the sleeve. A second motor is fixedly mounted on the outer side of the protective cover. The output end of the second motor is connected to the top of the main shaft to a second transmission component. A grinding wheel is fixedly mounted on the bottom end of the main shaft. The grinding wheel abuts against the side of the shoe sole. A slag removal mechanism for removing rubber particles from the surface of the grinding wheel is provided inside the protective cover. The slag removal mechanism includes a third push rod fixedly mounted on the outer side of the protective cover. A housing is rotatably mounted on the output end of the third push rod. Two base rods are rotatably mounted inside the housing. The cylindrical surface of the base rods is provided with bristles.

[0007] The protective cover is equipped with a slag-blowing mechanism for loosening rubber particles on the surface of the grinding wheel. The slag-blowing mechanism includes an air compressor fixedly installed on the outside of the protective cover. Several nozzles are equidistantly arranged in the outer shell between the two base rods. The air compressor and the several nozzles are connected by an air supply pipe.

[0008] Preferably, the top surface of the cabinet is provided with a guide mechanism to restrict the movement direction of the slag removal mechanism. The guide mechanism includes a base fixedly installed on the top surface of the cabinet. A pair of guide grooves are symmetrically opened on the top of the base. A corrugated plate is fixed on the top surface of the base between the two guide grooves. An inclined block is fixed on one end of the corrugated plate near the grinding wheel.

[0009] Preferably, a base is fixed to the bottom of the outer shell, the base is slidably connected to the guide groove, a first spring is sleeved on the top of the base rod, a rotating rod is fixed to the bottom of the base rod, the rotating rod is rotatably connected to the inside of the base, a torsion spring is sleeved on the rotating rod at the bottom of the base rod, a first protrusion is fixed in the middle of the rotating rod, and a second protrusion is fixed at the bottom end of the rotating rod.

[0010] Preferably, the base is provided with a unidirectional swing mechanism for driving the base rod and brush bristles to rotate in the same direction. The unidirectional swing mechanism includes a small gear rotatably installed inside the base, the small gear protruding from the side of the base. The top surface of the small gear is eccentrically rotatably connected to one end of a first connecting rod. A swing rod is rotatably connected inside the base. One end of the swing rod is eccentrically rotatably connected to the other end of the first connecting rod. A second connecting rod is slidably arranged up and down inside the base. Three rotating shafts are fixed at equal intervals at both ends and the middle of the top surface of the second connecting rod. The other end of the swing rod is rotatably connected to the rotating shaft in the middle of the second connecting rod. A collar is slidably sleeved on the rotating rod. A first groove is formed on the inner side of the collar. The first groove is engaged with a corresponding first protrusion. A connecting arm is fixed on the outer side of the collar. The connecting arm is rotatably connected to the rotating shaft at the end of the second connecting rod.

[0011] Preferably, one end of the swing arm near the pinion is rotatably mounted inside the base, the other end of the swing arm is slidably connected to the pivot in the middle of the second connecting rod, the pivots at both ends of the second connecting rod are slidably connected to the corresponding connecting arms, and the first groove is slidably connected to the corresponding first protrusion.

[0012] Preferably, the base is provided with an up-and-down swing mechanism for driving the base rod and brush bristles to rise and fall. The up-and-down swing mechanism includes a connecting frame slidably connected to the two rotating rods. The connecting frame is vertically slidably connected inside the base, and the end of the connecting frame protrudes from the side of the base. A first roller is rotatably mounted on the end of the connecting frame. A large gear is fixedly mounted on the bottom end of the main shaft. The large gear meshes with the small gear. A bottom ring is fixed to the bottom of the large gear. Several inclined plates are arranged in a circular array on the outer side of the bottom ring. The first roller abuts against the surface of the inclined plates.

[0013] Preferably, the base is provided with a counter-swing mechanism for driving the base rod and brush bristles to swing in the same direction. The counter-swing mechanism includes a top frame that slides vertically inside the base. The top of the top frame abuts against the bottom surface of the second connecting rod. A vertical rod is fixed to the bottom of the top frame, and the bottom end of the vertical rod abuts against the top surface of the corrugated plate and the inclined block. A second spring is sleeved on the vertical rod. One end of a connecting arm is symmetrically connected to the vertical rod. A cam sleeve is sleeved on the rotating rod. The other end of the connecting arm is rotatably connected to the corresponding cam sleeve. A second groove is provided inside the cam sleeve. The second groove engages with a corresponding second protrusion. A horizontally sliding transverse frame is symmetrically arranged inside the base. The top of the transverse frame is rotatably connected to the corresponding cam sleeve. A second roller is rotatably mounted on the bottom of the transverse frame, and the second roller abuts against the side of the corrugated plate. A third spring is installed on the transverse frame.

[0014] Preferably, one end of the connecting arm is rotatably connected to the vertical rod, and the connecting arm is composed of two inner and outer cylindrical structures joined together, having a certain telescopic capacity, and the cam sleeve is slidably connected to the top end of the corresponding transverse frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. A movable slag removal mechanism is installed inside the protective cover. After each grinding operation, the grinding mechanism returns to the waiting position. When the grinding wheel has been working for a certain period of time and returns to the waiting position, the third push rod is immediately activated, driving the slag removal mechanism to approach the grinding wheel, so that the bristles contact the surface of the grinding wheel. At the same time, the second motor reduces its speed, causing the grinding wheel to rotate at a low speed. The relative movement between the bristles and the grinding wheel removes the rubber particles adhering to the surface of the grinding wheel. During this process, the air compressor also compresses air, causing the nozzle to continuously spray gas, accelerating the detachment of rubber particles and further improving the efficiency of the slag removal mechanism in removing rubber particles from the surface of the grinding wheel.

[0017] 2. A large gear, bottom ring, and inclined plate are installed at the bottom of the main shaft. The main shaft drives the grinding wheel to rotate at a low speed, which in turn drives the large gear, bottom ring, and inclined plate to rotate. This, in turn, drives the second connecting rod to swing horizontally back and forth through the small gear. The collar then drives the rotating rod to rotate horizontally back and forth, ultimately causing the bristles to sweep horizontally. This improves the bristles' ability to clean horizontally and significantly accelerates the removal of residual rubber particles from the pits on the grinding wheel surface. At the same time, the continuously rotating inclined plate raises the first roller, which in turn raises and lowers the rotating rod through the connecting frame, causing the bristles to sweep up and down. This improves the bristles' ability to clean vertically and further enhances the removal effect on rubber particles.

[0018] 3. After cleaning, during the slag removal mechanism reset phase, the sliding engagement between the transverse frame and the inclined block allows the two symmetrically arranged transverse frames to move towards and away from each other. This, in turn, drives the two rotating rods to rotate towards and away from each other via the cam sleeve, achieving a clapping motion between the two brush bristles. The vibration from this clapping shakes off the rubber particles statically adsorbed on the brush bristles. Simultaneously, a continuous airflow nozzle further removes the rubber particles from the bristles, ensuring their cleanliness. To prevent interference between the two rotating rods rotating in the same direction, towards each other, and away from each other, the height variation of the vertical rod is cleverly utilized for transmission. During the brush cleaning process, the top frame lifts the second connecting rod, connecting it to the swing arm and connecting arm respectively, thus connecting the transmission chain and enabling smooth rotation in the same direction. This also separates the cam sleeve from the transverse frame, disconnecting the transmission between the cam sleeve and the transverse frame, allowing the rotating rod to rotate smoothly in the same direction, while preventing rotation in opposite directions. During the slag removal mechanism's reset, the vertical rod height decreases, the second connecting rod disconnects from the swing arm and connecting arm respectively, and the cam sleeve connects to the transverse frame, allowing the rotating rod to rotate smoothly in opposite directions, while preventing rotation in the same direction, effectively avoiding mutual interference between the two transmissions. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram showing the disassembly of a portion of the mold fixing mechanism of the present invention;

[0021] Figure 3 This is a schematic diagram showing the cooperation between the mold fixing mechanism, the swinging mechanism, and the edge grinding mechanism of the present invention;

[0022] Figure 4 This is a schematic diagram showing the cooperation between the edge grinding mechanism, the slag removal mechanism, and the slag blowing mechanism of the present invention;

[0023] Figure 5 This is a schematic diagram showing the elevation angle of the edge grinding mechanism, slag removal mechanism, and slag blowing mechanism of the present invention;

[0024] Figure 6 This is a schematic diagram showing the details of the slag removal mechanism of the present invention;

[0025] Figure 7 This is a cross-sectional view of the base and outer shell of the present invention;

[0026] Figure 8 This is a schematic diagram of the internal structure of the base of the present invention;

[0027] Figure 9 This is a schematic diagram of the guiding mechanism of the present invention;

[0028] Figure 10 This is a schematic diagram showing the cooperation between the co-directional pendulum mechanism and the opposing pendulum mechanism of the present invention;

[0029] Figure 11 This is a schematic diagram showing the separation of the second connecting rod from the swing arm and connecting arm of the present invention;

[0030] Figure 12 This is a schematic diagram of the cooperation between the inclined plate and the first roller of the present invention;

[0031] Figure 13 This is a schematic diagram showing the connection relationship between the rotating rod and the opposing swing mechanism of the present invention;

[0032] Figure 14 This is a schematic diagram of the interaction between the opposing swing mechanism of the present invention and the wave plate and inclined block.

[0033] In the diagram: 1. Fixed mold mechanism; 10. Cabinet; 11. Protective cover; 12. Turntable; 13. First motor; 14. First transmission component; 15. Lower clamp; 16. First push rod; 17. Upper clamp; 18. Shoe sole; 2. Swing mechanism; 20. Support; 21. Swing arm; 22. Sleeve; 23. Second push rod; 3. Edge grinding mechanism; 30. Main shaft; 31. Second motor; 32. Second transmission component; 33. Grinding wheel; 4. Guide mechanism; 40. Base; 41. Guide groove; 42. Wave plate; 43. Inclined block; 5. Slag removal mechanism; 50. Base; 51. Outer shell; 52. Third push rod; 53. Base rod; 54. Brush bristles; 55. First spring; 56. Rotating rod; 57. Torsion spring; 58. First convex bar; 59. Second convex bar; 6. Slag blowing mechanism; 60. Air compressor; 61. Gas supply pipe; 62. Nozzle; 7. Co-directional swing mechanism; 70. Pinion; 71. First connecting rod; 72. Swing rod; 73. Second connecting rod; 74. Rotating shaft; 75. Collar; 76. First groove; 77. Connecting arm; 8. Up and down swing mechanism; 80. Connecting frame; 81. First roller; 82. Large gear; 83. Bottom ring; 84. Inclined plate; 9. Opposite swing mechanism; 90. Top frame; 91. Vertical rod; 92. Second spring; 93. Connecting arm; 94. Cam sleeve; 95. Second groove; 96. Horizontal moving frame; 97. Second roller; 98. Third spring. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1-14 The present invention provides a technical solution: an automatic edge trimming machine for rubber shoe soles;

[0036] Example 1: Please refer to Figure 1 - Figure 8 This embodiment describes one feasible structure for removing burrs from rubber shoe soles;

[0037] The mold fixing mechanism 1 includes a cabinet 10, a protective cover 11 fixedly installed on the top of the cabinet 10, a turntable 12 rotatably installed on the top surface of the cabinet 10, a first motor 13 fixedly installed inside the cabinet 10, a first transmission component 14 connected to the output end of the first motor 13 and the bottom of the turntable 12, a lower clamp 15 fixedly installed on the top surface of the turntable 12, a first push rod 16 fixedly installed on the top surface inside the protective cover 11, an upper clamp 17 rotatably connected to the output end of the first push rod 16, a shoe sole 18 placed between the lower clamp 15 and the first push rod 16, and a swing mechanism 2 installed inside the protective cover 11. The swing mechanism 2 includes a support 20 fixedly installed on the inner wall of the protective cover 11, one end of a swing arm 21 rotatably installed on the support 20, a sleeve 22 vertically fixed to the other end of the swing arm 21, and a second push rod 23 fixedly installed on the inner wall of the protective cover 11, the output end of the second push rod 23 rotatably connected to one end of the swing arm 21.

[0038] In this embodiment, the lower clamp 15 is fixed to the top surface of the turntable 12. The worker places the shoe sole 18 on top of the lower clamp 15. The first push rod 16 drives the upper clamp 17 to descend, pressing the shoe sole 18 firmly to achieve fixation. Then, the first motor 13 drives the first transmission component 14 to roll, thereby rotating the turntable 12, which in turn rotates the lower clamp 15, the upper clamp 17, and the shoe sole 18. Simultaneously, the second motor 31 drives the main shaft 30 to rotate via the second transmission component 32, thereby rotating the grinding wheel 33. The push rod 23 drives the swing arm 21 to swing through the extension and retraction of its output end, so that the grinding wheel 33 is close to the sole 18. During the rotation of the sole 18, the length of the output end of the second push rod 23 is dynamically adjusted so that the grinding wheel 33 is always in contact with the side of the sole 18. The friction of the grinding wheel 33 is used to grind away the rough edges on the side of the sole 18 and make it smooth. The first transmission component 14 and the second transmission component 32 are both composed of pulleys and transmission belts. During the swing of the main shaft 30 following the swing mechanism 2, the transmission belt in the second transmission component 32 adjusts its angle accordingly.

[0039] The sleeve 22 is equipped with a grinding mechanism 3, which includes a main shaft 30 rotatably installed inside the sleeve 22. A second motor 31 is fixedly installed on the outside of the protective cover 11. The output end of the second motor 31 is connected to the top of the main shaft 30 and a second transmission component 32. A grinding wheel 33 is fixedly installed at the bottom of the main shaft 30. The grinding wheel 33 abuts against the side of the shoe sole 18. The protective cover 11 is equipped with a slag removal mechanism 5 for removing rubber particles from the surface of the grinding wheel 33. The slag removal mechanism 5 includes a third push rod 52 fixedly installed on the outside of the protective cover 11. A housing 51 is rotatably installed at the output end of the third push rod 52. Two base rods 53 are rotatably installed inside the housing 51. The cylindrical surface of the base rods 53 is provided with bristles 54.

[0040] In this embodiment, the surface of the high-speed rotating grinding wheel 33 has a large number of hard abrasive grains that continuously impact and scrape the edge of the sole, removing the rough edges of the sole 18 by relying on relative motion. The surface of the grinding wheel 33 is uneven, and after long-term grinding, the recesses of the grinding wheel 33 will be filled with rubber microparticles, resulting in a decrease in the surface roughness of the grinding wheel 33 and a significant decrease in the grinding effect. Therefore, the grinding wheel 33 needs to be cleaned of the attached rubber microparticles regularly. After the grinding wheel 33 has worked for a certain period of time, during the period when it has completed its last grinding work and the sole 18 is replaced, the swing mechanism 2 will drive the edge grinding mechanism 3 away from the turntable 12 and move it to the waiting position, and then reduce the rotation speed. Subsequently, the third push rod 52 pushes the outer shell 51, so that the bristles 54 come into contact with the surface of the grinding wheel 33. The bristles 54 are relatively hard, and the rubber microparticles attached to the surface can be brushed off by the low-speed rotation of the grinding wheel 33.

[0041] Inside the protective cover 11 is a slag blowing mechanism 6 for loosening the rubber particles on the surface of the grinding wheel 33. The slag blowing mechanism 6 includes an air compressor 60 fixedly installed on the outside of the protective cover 11. Several nozzles 62 are equidistantly arranged in the outer shell 51 between the two base rods 53. The air compressor 60 and the several nozzles 62 are connected through an air supply pipe 61.

[0042] In this embodiment, rubber particles are highly susceptible to carrying electrons, causing electrostatic adsorption. The rubber particles will instead adhere to the surfaces of the grinding wheel 33 and the bristles 54, making them difficult to remove effectively. Therefore, during the brushing of the bristles 54, the air compressor 60 operates, pumping compressed air into each nozzle 62 through the air supply pipe 61. The nozzles 62 simultaneously spray airflow onto the grinding wheel 33 and the bristles 54, blowing away the rubber particles and effectively reducing the electrostatic adsorption of the rubber particles.

[0043] Example 2: Please refer to Figure 4 - Figure 12 Based on Embodiment 1, this embodiment takes into account that in Embodiment 1, the method of using the grinding wheel 33 to rotate at low speed and the brush bristles 54 to brush and blow air to remove rubber particles can only restore the grinding wheel 33 to a usable state and is difficult to effectively remove them. Some stubborn particles will still be stuck in the deep depressions on the surface of the grinding wheel 33. The brush bristles 54 that are swept in a directional manner have dead corners and it is difficult to reach these depths, let alone remove the rubber particles in these deep depressions. Therefore, Embodiment 2 solves the problem of cleaning dead corners of the brush bristles 54 that are swept in a unidirectional manner through the following structure.

[0044] A base 50 is fixed to the bottom of the outer casing 51. The base 50 is slidably connected to the guide groove 41. A first spring 55 is sleeved on the top of the base rod 53. A rotating rod 56 is fixed to the bottom of the base rod 53. The rotating rod 56 is rotatably connected to the inside of the base 50. A torsion spring 57 is sleeved on the rotating rod 56 at the bottom of the base rod 53. A first protrusion 58 is fixed in the middle of the rotating rod 56. A second protrusion 59 is fixed at the bottom of the rotating rod 56.

[0045] The base 50 is equipped with an up-and-down swing mechanism 8 for driving the base rod 53 and the bristles 54 to rise and fall. The up-and-down swing mechanism 8 includes a connecting frame 80 that is slidably connected to two rotating rods 56. The connecting frame 80 is vertically slidably connected inside the base 50, and the end of the connecting frame 80 protrudes from the side of the base 50. A first roller 81 is rotatably installed at the end of the connecting frame 80. A large gear 82 is fixedly installed at the bottom of the main shaft 30. The large gear 82 is meshed with a small gear 70. A bottom ring 83 is fixed at the bottom of the large gear 82. Several inclined plates 84 are arranged in a circular array on the outer side of the bottom ring 83. The first roller 81 abuts against the surface of the inclined plate 84.

[0046] In this embodiment, a large gear 82, a bottom ring 83, and an inclined plate 84 are fixed on the main shaft 30 at the bottom of the grinding wheel 33. When the grinding wheel 33 stops at the waiting position, the third push rod 52 pushes the base 50 and the outer shell 51 close to the grinding wheel 33. Then, the first roller 81 approaches several inclined plates 84. During the low-speed rotation of the grinding wheel 33 driven by the main shaft 30, the bottom ring 83 drives the inclined plate 84 to rotate. The first roller 81 starts to abut against the inclined plate 84 from the bottom end and disengages from the top end, abutting against each inclined plate 84 in sequence. The first roller 81 is lifted upward by the inclined plate 84. The first roller 81 drives the connecting frame 80 to rise. The connecting frame 80 drives the base rod 53 to rise through the rotating rod 56. The base rod 53 then drives the bristles 54 to move upward. When the first roller 81 leaves the high point of the inclined plate 84, it leaves the inclined plate 84. Then, under the elastic force of the first spring 55, the base rod 53 drives the bristles 54 to fall. The above action is repeated. The up and down movement realizes that the bristles 54 brush the rubber particles in the deep pits on the surface of the grinding wheel 33 from the vertical direction.

[0047] The connecting frame 80 slides in the transverse groove opened on the surface of the rotating rod 56 by a small protrusion fixed at its end (not shown in the figure), so that the connecting frame 80 keeps its position unchanged when the rotating rod 56 rotates, thus achieving the effect of not interfering with each other.

[0048] The base 50 is equipped with a unidirectional swing mechanism 7 for driving the base rod 53 and the bristles 54 to rotate in the same direction. The unidirectional swing mechanism 7 includes a small gear 70 rotatably installed inside the base 50. The small gear 70 protrudes from the side of the base 50. The top surface of the small gear 70 is eccentrically rotatably connected to one end of the first connecting rod 71. The base 50 is rotatably connected to a swing rod 72. One end of the swing rod 72 is eccentrically rotatably connected to the other end of the first connecting rod 71. The base 50 is equipped with a second connecting rod 73 that slides up and down. Three rotating shafts 74 are fixed at equal intervals at both ends and the middle of the top surface of the second connecting rod 73. The other end of the swing rod 72 is rotatably connected to the rotating shaft 74 in the middle of the second connecting rod 73. A collar 75 is slidably sleeved on the rotating rod 56. A first groove 76 is opened on the inner side of the collar 75. The first groove 76 is engaged with the corresponding first protrusion 58. A connecting arm 77 is fixed on the outer side of the collar 75. The connecting arm 77 is rotatably connected to the rotating shaft 74 at the end of the second connecting rod 73.

[0049] In this embodiment, after the third push rod 52 pushes the base 50 and the outer shell 51 close to the grinding wheel 33, the small gear 70 protruding from the side of the base 50 meshes with the large gear 82. During the low-speed rotation of the grinding wheel 33 driven by the main shaft 30, the large gear 82 drives the small gear 70 to rotate. The small gear 70 drives the second connecting rod 73 to swing by the eccentrically connected first connecting rod 71. The swing rod 72 drives the second connecting rod 73 to move back and forth, thereby driving the two collars 75 to swing left and right synchronously. The collars 75 drive the corresponding rotating rod 56 to swing left and right, which in turn drives the base rod 53 to swing left and right. The base rod 53 causes the bristles 54 to sweep left and right, brushing the rubber particles in the deep pits on the surface of the grinding wheel 33 from the horizontal direction.

[0050] The collar 75 engages with the first protrusion 58 through the first groove 76, ensuring that the collar 75 can drive the rotating rod 56 to swing horizontally when it swings horizontally. However, when the up-and-down swing mechanism 8 drives the rotating rod 56 to rise and fall, the rotating rod 56 will not drive the collar 75 to rise and fall, thus achieving non-interference. A torsion spring 57 is installed at the bottom of the base rod 53. Because the swing direction of the bristles 54 cannot be determined when the large gear 82 and the small gear 70 separate after cleaning (the base rod 53 and the bristles 54 deflect in different positions depending on the rotation angle of the small gear 70), the base rod 53 and the bristles 54 need to return to their initial positions in order to ensure smooth operation of subsequent actions. Therefore, the first spring 55 mentioned above can make the base rod 53 and the bristles 54 return to their initial height. Each rotation of the rotating rod 56 will cause the torsion spring 57 to store force. When the large gear 82 and the small gear 70 separate, the base rod 53 and the bristles 54 will return to their original positions under the elastic force of the torsion spring 57.

[0051] One end of the swing arm 72 near the pinion 70 is rotatably mounted inside the base 50, and the other end of the swing arm 72 is slidably connected to the pivot 74 in the middle of the second connecting rod 73. The pivots 74 at both ends of the second connecting rod 73 are slidably connected to the corresponding connecting arms 77, and the first groove 76 is slidably connected to the corresponding first protrusion 58.

[0052] In this embodiment, the second link 73 can drive the rotating shaft 74 to separate from the swing rod 72 and the connecting arm 77 in order to disconnect the connection and not affect the opposing swing mechanism 9 from driving the two rotating rods 56 to rotate in opposite directions.

[0053] Example 3: Please refer to Figure 6 , Figure 7 , Figure 9 , Figure 10 , Figure 13 , Figure 14Based on Embodiment 1, this embodiment takes into account that in the actual use of Embodiment 1, although the blowing of air through the nozzle 62 during the brushing process can remove most of the rubber particles on the surface of the grinding wheel 33, the rubber particles diffuse to both sides with the airflow, which will cause some of the static-charged rubber particles to be adsorbed on the brush bristles 54. If they accumulate over a long period of time, they will contaminate the brush bristles 54 and reduce their cleaning ability. Therefore, Embodiment 3 solves the problem of static-charged rubber particles accumulating on the brush bristles 54 through the following structure.

[0054] The top surface of the cabinet 10 is provided with a guide mechanism 4 that restricts the movement direction of the slag removal mechanism 5. The guide mechanism 4 includes a base 40 fixedly installed on the top surface of the cabinet 10. A pair of guide grooves 41 are symmetrically opened on the top of the base 40. A corrugated plate 42 is fixed on the top surface of the base 40 between the two guide grooves 41. An inclined block 43 is fixed on one end of the corrugated plate 42 near the grinding wheel 33.

[0055] In this embodiment, the waiting position of the grinding wheel 33 is close to the end of the base 40. When it is necessary to remove rubber particles, the output end of the third push rod 52 extends and pushes the base 50 to slide in the guide groove 41, thereby driving the outer shell 51 to approach the grinding wheel 33, so that the bristles 54 accurately contact the surface of the grinding wheel 33.

[0056] The base 50 is equipped with a counter-swing mechanism 9 for driving the base rod 53 and the bristles 54 to swing in the same direction. The counter-swing mechanism 9 includes a top frame 90 that slides vertically inside the base 50. The top of the top frame 90 abuts against the bottom surface of the second connecting rod 73. A vertical rod 91 is fixed to the bottom of the top frame 90, and the bottom end of the vertical rod 91 abuts against the top surface of the corrugated plate 42 and the inclined block 43. A second spring 92 is sleeved on the vertical rod 91. One end of a connecting arm 93 is symmetrically connected to the vertical rod 91. A rotating rod 56 is sleeved with... The other end of the connecting arm 93 is rotatably connected to the cam sleeve 94. The cam sleeve 94 has a second groove 95 inside, which engages with the corresponding second protrusion 59. The base 50 has a horizontally sliding transverse frame 96 symmetrically arranged inside. The top of the transverse frame 96 is rotatably connected to the corresponding cam sleeve 94. The bottom of the transverse frame 96 is rotatably mounted with a second roller 97, which abuts against the side of the corrugated plate 42. A third spring 98 is installed on the transverse frame 96.

[0057] In this embodiment, after the rubber particles on the surface of the grinding wheel 33 are removed, the output end of the third push rod 52 retracts, causing the base 50 and the outer shell 51 to slide in the opposite direction along the guide groove 41. During the sliding, the base rod 53 and the bristles 54 are reset. Under the elastic force of the third spring 98, the transverse frame 96 always drives the second roller 97 to abut against the side of the third push rod 52, causing the two symmetrically arranged transverse frames 96 to slide in opposite directions in a regular manner. This causes the two rotating rods 56 to rotate in opposite directions through the cam sleeve 94, achieving the effect of the two bristles 54 clapping each other. The vibration of the clapping shakes off the rubber particles that are electrostatically adsorbed on the bristles 54. At the same time, the nozzle 62 that blows air continuously makes the rubber particles as far away from the bristles 54 as possible, ensuring the cleanliness of the bristles 54.

[0058] Similarly, the cam sleeve 94 and the rotating rod 56 are limited by the second groove 95, which ensures that the rotating rod 56 can rotate synchronously with the cam sleeve 94 and can slide relative to each other, thus avoiding interference between the rotating rod 56 and the cam sleeve 94 when the rotating rod 56 rises and falls. Whether the rotating rod 56 rotates in the same direction during brushing or when the slag removal mechanism 5 returns, the rotating rod 56 rotates in opposite directions. Both will affect the other's action. Therefore, an inclined block 43 is provided at the end of the wave plate 42. During the brushing of the brush 54 and the brushing of the grinding wheel 33, the base 50 is at the end of the base 40. The inclined block 43 just lifts the vertical rod 91, which raises the connecting arm 93 and the top frame 90. The top frame 90 lifts the second connecting rod 73. The rotating shaft 74 at both ends and the middle of the second connecting rod 73 is connected to the collar 75 and the swing rod 72 respectively, so that the transmission chain is connected and the transmission of rotation in the same direction can be completed smoothly. Simultaneously, the connecting arm 93 drives the cam sleeve 94 to rise synchronously, separating the cam sleeve 94 from the transverse frame 96. When the two rotating rods 56 rotate in the same direction, the cam sleeve 94 can rotate freely with the rotating rods 56, and the transverse frame 96 does not interfere with the rotation of the rotating rods 56 in the same direction. During the return of the slag removal mechanism 5, the vertical rod 91 descends from the inclined plane of the inclined block 43, and its height decreases, thereby driving the connecting arm 93, the top frame 90, and the cam sleeve 94 to decrease in height. Because the first spring 55 and the torsion spring 57 reset the slag removal mechanism 5, the cam sleeve 94 can connect with the corresponding transverse frame 96 after it descends, making the transmission chain of the opposing swing complete. At the same time, the top frame 90 descends, and the second connecting rod 73 descends synchronously, separating from the swing rod 72 and the connecting arm 77 respectively. In this way, when the two rotating rods 56 rotate in opposite directions, the rotating rods 56 will only drive the collar 75 to rotate.

[0059] One end of the connecting arm 93 is rotatably connected to the vertical rod 91, and the connecting arm 93 is composed of two inner and outer cylindrical structures joined together, which has a certain telescopic capacity. The cam sleeve 94 is slidably connected to the top of the corresponding transverse frame 96.

[0060] In this embodiment, the connecting arm 93 serves two purposes: first, by raising and lowering the vertical rod 91, it drives the cam sleeve 94 to rise and fall synchronously; second, when the connecting arm 93 drives the cam sleeve 94 to rise, during the period when the two rotating rods 56 rotate in the same direction, the connecting arm 93 can use its telescopic and adjustable characteristics to avoid the problem of the two rotating rods 56 getting stuck and unable to rotate in the same direction.

[0061] Working principle: When installing a new shoe sole 18, first open the protective cover 11, accurately place the new shoe sole 18 on the top of the lower clamp 15, the output end of the first push rod 16 extends, driving the upper clamp 17 to press on the top of the shoe sole 18, and fix the shoe sole 18 firmly. Then start the first motor 13, the first motor 13 drives the turntable 12 to rotate at a constant speed through the first transmission component 14, and the turntable 12 drives the lower clamp 15, the upper clamp 17 and the shoe sole 18 to rotate at a constant speed.

[0062] At the same time, the second motor 31 starts and drives the main shaft 30 inside the sleeve 22 to rotate through the second transmission component 32. The main shaft 30 drives the grinding wheel 33, bottom ring 83 and inclined plate 84 at the bottom end to rotate. The output end of the second push rod 23 extends and drives the swing arm 21 to swing, so that the grinding wheel 33 abuts against the side of the sole 18. The output end of the second push rod 23 adjusts its length in real time and changes the deflection angle of the swing arm 21 so that the grinding wheel 33 always fits against the side of the sole 18. As the sole 18 and the grinding wheel 33 rotate, the rough edges on the side of the sole 18 are cleaned.

[0063] After the grinding wheel 33 has been grinding for a certain period of time, the third push rod 52 will be activated when it returns to the waiting position next time. At the same time, the second motor 31 will reduce its speed, causing the grinding wheel 33 to rotate at a low speed. The output end of the third push rod 52 pushes the base 50 and the outer shell 51 closer to the grinding wheel 33. The base 50 slides in the guide groove 41. After the slag removal mechanism 5 is in place, the bristles 54 will contact the surface of the grinding wheel 33. At the same time, the large gear 82 and the small gear 70 will mesh and connect, and the first roller 81 will approach the corresponding inclined plate 84.

[0064] When the slag removal mechanism 5 is in place, the vertical rod 91 inside the base 50 slides to the highest end of the inclined block 43, thereby compressing the second spring 92 and driving the top frame 90 and connecting arm 93 to rise. The top frame 90 pushes the second connecting rod 73 upward, so that the rotating shafts 74 at both ends and the middle of the second connecting rod 73 are inserted into the corresponding holes of the connecting arm 77 and the swing rod 72, respectively. At the same time, the connecting arm 93 drives the cam sleeve 94 to rise, so that the cam sleeve 94 separates from the corresponding transverse frame 96.

[0065] Subsequently, as the grinding wheel 33 rotates, the large gear 82 drives the small gear 70 to rotate. The small gear 70 drives the swing arm 72 to swing through the first connecting rod 71. The swing arm 72 drives the second connecting rod 73 to swing horizontally back and forth through the rotating shaft 74. The rotating shaft 74 at both ends of the second connecting rod 73 drives the connecting arm 77, which in turn drives the corresponding collar 75 to swing horizontally back and forth. The two collars 75 are connected by the first groove 76 and the first protrusion 58, which drives the corresponding rotating rod 56 to rotate left and right back and forth. This drives the bristles 54 to sweep left and right through the base rod 53, achieving horizontal brushing and improving the brushing effect on the surface of the grinding wheel 33. During the rotation of the rotating rod 56, the torsion spring 57 stores power.

[0066] Simultaneously, the bottom ring 83 drives the inclined plate 84 to rotate, and the inclined plate 84 sequentially raises the first roller 81. The first roller 81 raises the rotating rod 56 through the connecting frame 80. The rotating rod 56 raises the base rod 53, which compresses the first spring 55 and causes the brush bristles 54 to move up and down, achieving vertical brushing. After the first roller 81 disengages from one inclined plate 84, under the elastic force of the first spring 55, the height of the base rod 53, brush bristles 54, rotating rod 56, connecting frame 80, and first roller 81 immediately returns to its original position, and the first roller 81 again touches the next inclined plate 84 from its lowest position. The up-and-down reciprocating brushing of the grinding wheel 33, combined with the horizontal sweeping of the brush bristles 54, can further improve the cleaning effect of the brush bristles 54 and significantly enhance the ability to clean the rubber particles remaining deep in the recesses of the grinding wheel 33.

[0067] During the all-round sweeping motion of the brush bristles 54, the air compressor 60 on the outside of the protective cover 11 is started simultaneously, pumping compressed air into the nozzle 62 through the air supply pipe 61 and spraying it out from the nozzle 62, further enhancing the ability of the present invention to remove rubber particles.

[0068] After cleaning, the output end of the third push rod 52 retracts, causing the base 50 and the outer shell 51 to reset. During the reset, the pinion 70 separates from the gear 82, the first roller 81 separates from the inclined plate 84, and the elastic force of the first spring 55 causes the base rod 53, brush 54, and rotating rod 56 to return to their initial positions; the elastic force of the torsion spring 57 causes the base rod 53, brush 54, and rotating rod 56 to return to their initial angles. At the same time, the vertical rod 91 slides down from the inclined block 43, the second spring 92 recovers, and the height of the top frame 90, vertical rod 91, and connecting arm 93 decreases. Due to the loss of the resistance from the top frame 90, the second connecting rod 73 falls and separates from the swing rod 72 and connecting arm 77 respectively; the connecting arm 93 causes the cam sleeve 94 to descend, connecting the cam sleeve 94 to the corresponding transverse frame 96. Then, while the base 50 slides in the guide groove 41, the transverse frame 96, under the action of the elastic force of the third spring 98, keeps the second roller 97 in contact with the top frame 96. When the wave plate 42 touches the side, the wave-shaped side of the wave plate 42 causes the horizontal moving frame 96 to slide horizontally back and forth, thereby driving the cam sleeve 94 to swing horizontally. By using the engagement connection between the horizontal moving frame 96 and the second protrusion 59, the cam sleeve 94 drives the rotating rod 56 to swing horizontally. The two rotating rods 56 rotate in the same direction or opposite directions, causing the bristles 54 to hit each other. By using their own vibration, the rubber particles adhering to the bristles 54 are removed. At the same time, the nozzle 62 continuously sprays airflow to help remove the rubber particles adhering to the bristles 54.

[0069] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic rubber shoe sole trimming machine, comprising a mold fixing mechanism (1), the mold fixing mechanism (1) comprising a cabinet (10), a protective cover (11) fixedly disposed on the top of the cabinet (10), a turntable (12) rotatably disposed on the top surface of the cabinet (10), a first motor (13) fixedly installed inside the cabinet (10), a first transmission component (14) connected to the output end of the first motor (13) and the bottom of the turntable (12), a lower clamp (15) fixedly disposed on the top surface of the turntable (12), a first push rod (16) fixedly disposed on the top surface inside the protective cover (11), an upper clamp (17) rotatably connected to the output end of the first push rod (16), a shoe sole (18) placed between the lower clamp (15) and the first push rod (16), and a swing mechanism (2) installed inside the protective cover (11), the swing mechanism (2) comprising a fixed component... The inner wall of the protective cover (11) has a support (20), on which one end of a swing arm (21) is rotatably mounted. The other end of the swing arm (21) is vertically fixed to a sleeve (22). The inner wall of the protective cover (11) is also fixedly mounted with a second push rod (23). The output end of the second push rod (23) is rotatably connected to one end of the swing arm (21). The sleeve (22) is provided with a grinding mechanism (3). The grinding mechanism (3) includes a main shaft (30) rotatably mounted inside the sleeve (22). The outer side of the protective cover (11) is fixedly mounted with a second motor (31). The output end of the second motor (31) is connected to the top end of the main shaft (30) with a second transmission component (32). The bottom end of the main shaft (30) is fixedly mounted with a grinding wheel (33). The grinding wheel (33) abuts against the side of the sole (18). The feature is: The protective cover (11) is equipped with a slag removal mechanism (5) for removing rubber particles from the surface of the grinding wheel (33). The slag removal mechanism (5) includes a third push rod (52) fixedly installed on the outside of the protective cover (11). The output end of the third push rod (52) is rotatably mounted with a housing (51). Two base rods (53) are rotatably mounted inside the housing (51). The cylindrical surface of the base rods (53) is provided with bristles (54). The protective cover (11) is provided with a slag blowing mechanism (6) for loosening the rubber particles on the surface of the grinding wheel (33). The slag blowing mechanism (6) includes an air compressor (60) fixedly installed on the outside of the protective cover (11). A number of nozzles (62) are equidistantly arranged in the outer shell (51) between the two base rods (53). The air compressor (60) and the number of nozzles (62) are connected by an air supply pipe (61).

2. The automatic edge trimming machine for rubber shoe soles according to claim 1, characterized in that: The top surface of the cabinet (10) is provided with a guide mechanism (4) to restrict the movement direction of the slag removal mechanism (5). The guide mechanism (4) includes a base (40) fixedly installed on the top surface of the cabinet (10). A pair of guide grooves (41) are symmetrically opened on the top of the base (40). A corrugated plate (42) is fixed on the top surface of the base (40) between the two guide grooves (41). An inclined block (43) is fixed on one end of the corrugated plate (42) near the grinding wheel (33).

3. The automatic edge trimming machine for rubber shoe soles according to claim 2, characterized in that: The bottom of the outer shell (51) is fixed with a base (50), the base (50) is slidably connected to the guide groove (41), the top of the base rod (53) is sleeved with a first spring (55), the bottom of the base rod (53) is fixed with a rotating rod (56), the rotating rod (56) is rotatably connected to the inside of the base (50), the bottom of the base rod (53) is sleeved with a torsion spring (57), the middle of the rotating rod (56) is fixed with a first protrusion (58), and the bottom end of the rotating rod (56) is fixed with a second protrusion (59).

4. The automatic edge trimming machine for rubber shoe soles according to claim 3, characterized in that: The base (50) is equipped with a unidirectional swing mechanism (7) for driving the base rod (53) and the bristles (54) to rotate in the same direction. The unidirectional swing mechanism (7) includes a small gear (70) rotatably installed inside the base (50). The small gear (70) protrudes from the side of the base (50). The top surface of the small gear (70) is eccentrically rotatably connected to one end of the first connecting rod (71). A swing rod (72) is rotatably connected inside the base (50). One end of the swing rod (72) is eccentrically rotatably connected to the other end of the first connecting rod (71). The base (50) slides up and down inside. A second connecting rod (73) is provided, and three rotating shafts (74) are fixed at equal intervals at both ends and the middle of the top surface of the second connecting rod (73). The other end of the swing rod (72) is rotatably connected to the rotating shaft (74) in the middle of the second connecting rod (73). A collar (75) is slidably sleeved on the rotating rod (56). A first groove (76) is provided on the inner side of the collar (75). The first groove (76) is engaged with the corresponding first protrusion (58). A connecting arm (77) is fixed on the outer side of the collar (75). The connecting arm (77) is rotatably connected to the rotating shaft (74) at the end of the second connecting rod (73).

5. The automatic edge trimming machine for rubber shoe soles according to claim 4, characterized in that: The swing arm (72) is rotatably mounted inside the base (50) at one end near the pinion (70), and the other end of the swing arm (72) is slidably connected to the pivot (74) in the middle of the second connecting rod (73). The pivots (74) at both ends of the second connecting rod (73) are slidably connected to the corresponding connecting arms (77), and the first groove (76) is slidably connected to the corresponding first protrusion (58).

6. The automatic edge trimming machine for rubber shoe soles according to claim 4, characterized in that: The base (50) is provided with an up-and-down swing mechanism (8) for driving the base rod (53) and brush bristles (54) to rise and fall. The up-and-down swing mechanism (8) includes a connecting frame (80) slidably connected to the two rotating rods (56). The connecting frame (80) is vertically slidably connected to the inside of the base (50), and the end of the connecting frame (80) protrudes from the side of the base (50). A first roller (81) is rotatably installed at the end of the connecting frame (80). A large gear (82) is fixedly installed at the bottom of the main shaft (30). The large gear (82) meshes with the small gear (70). A bottom ring (83) is fixed at the bottom of the large gear (82). Several inclined plates (84) are arranged in a circular array on the outer side of the bottom ring (83). The first roller (81) abuts against the surface of the inclined plate (84).

7. An automatic edge trimming machine for rubber shoe soles according to claim 4, characterized in that: The base (50) is equipped with a counter-swing mechanism (9) for driving the base rod (53) and the bristles (54) to swing in the same direction. The counter-swing mechanism (9) includes a top frame (90) that slides vertically inside the base (50). The top of the top frame (90) abuts against the bottom surface of the second connecting rod (73). A vertical rod (91) is fixed to the bottom of the top frame (90), and the bottom end of the vertical rod (91) abuts against the top surface of the wave plate (42) and the inclined block (43). A second spring (92) is sleeved on the vertical rod (91). One end of a connecting arm (93) is symmetrically connected to the vertical rod (91). The rotating rod (56) A cam sleeve (94) is fitted on the upper part, and the other end of the connecting arm (93) is rotatably connected to the corresponding cam sleeve (94). A second groove (95) is provided inside the cam sleeve (94), and the second groove (95) is engaged with the corresponding second protrusion (59). A horizontal sliding frame (96) is symmetrically arranged inside the base (50). The top of the horizontal frame (96) is rotatably connected to the corresponding cam sleeve (94). A second roller (97) is rotatably installed at the bottom of the horizontal frame (96), and the second roller (97) abuts against the side of the wave plate (42). A third spring (98) is installed on the horizontal frame (96).

8. The automatic edge trimming machine for rubber shoe soles according to claim 7, characterized in that: One end of the connecting arm (93) is rotatably connected to the vertical rod (91), and the connecting arm (93) is composed of two inner and outer cylindrical structures joined together, which has a certain telescopic capacity. The cam sleeve (94) is slidably connected to the top end of the corresponding transverse frame (96).

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