Rubber sheet cutting machine

Abstract

The utility model discloses a rubber sheet cutting machine which mainly comprises a conveying belt, a support, a blade, a transmission mechanism, an auxiliary mechanism and a sanding mechanism. A cutter head is movably connected to the lower part of the transmission mechanism, an inclined worm gear and a driving wheel extending out of the sanding mechanism and making contact with the conveying belt are arranged in the sanding mechanism, and a worm is fixedly connected to the middle of the driving wheel; the driving wheel is driven by the conveying belt to rotate, so that the worm drives the worm gear to rotate, and the sanding mechanism is driven to perform rotary sanding on the blade extending into the sanding mechanism; the rubber cutting device solves the problem that cutting quality is not uniform due to the fact that a blade is prone to passivation in rubber cutting operation. The product quality and the quality consistency can be improved, and the cutting efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of rubber production, and particularly to a rubber sheet cutting machine. Background Art

[0002] In modern production and life, rubber sheets are mainly used in many fields such as seal manufacturing, waterproof materials, medical equipment, and mechanical parts. They play multiple roles in modern production and life. They not only play an important role in the industrial and construction fields, but also have wide applications in the fields of medicine, health, and transportation, providing important support for the development of all walks of life and the quality of life. During the production process of rubber sheets, the rubber sheets on the production line need to be cut and then hung to dry. During long-term cutting operations, the blades are severely worn, and the cutting tool group needs to be replaced frequently.

[0003] For example, a cutting machine with a patent number of CN220113451U that can increase the service life of the cutting blade. Its structure includes a cutting machine body and an adjusting block slidably connected in the cutting machine body. The lower surface of the adjusting block is rotatably installed with a cutting blade through a rotating assembly. One side of the lower surface of the rotating ring close to the cutting blade is fixed with a connecting block. One end of the connecting block close to the rotating assembly on the lower surface of the adjusting block is fixedly connected to the rotating assembly. On the upper part of both sides of the cutting blade on the lower surface of the connecting block, rubber blocks are fixed. Second retaining grooves are respectively opened in the middle of the rubber blocks. A number of second communication holes communicating with the second retaining grooves are respectively opened on the surface of the rubber blocks close to the cutting blade. The above-mentioned cutting machine only uses the provided rubber blocks to adhere to the dirt on the cutting blade, but cannot solve the problem that the blade itself becomes dull after long-term cutting, resulting in inconsistent flatness of the cut surface. Therefore, this application designs a rubber sheet cutting machine that can increase the service life of the cutting blade and improve the consistency of product quality. Summary of the Utility Model

[0004] The purpose of the present utility model is to provide a rubber sheet cutting machine, aiming to solve the above-mentioned existing problems.

[0005] To achieve the above object, the present utility model provides the following technical solutions: A rubber sheet cutting machine, comprising a conveyor belt, a bracket, a blade, a transmission mechanism, an auxiliary mechanism, and a grinding mechanism for performing grinding treatment on the blade after each cutting; the brackets are arranged on both sides of the conveyor belt, the transmission mechanism is rotatably connected to the inner side of the bracket, a cutter head is movably connected to the lower part of the transmission mechanism, the upper end of the blade is embedded in the lower part of the cutter head, both sides of the grinding mechanism are bolted to the inner side of the bracket, and the auxiliary mechanism is bolted to the outer side of the bracket; the grinding mechanism is provided with an inclined worm gear and a driving wheel extending out of the grinding mechanism and contacting the conveyor belt, a worm is fixedly connected to the middle of the driving wheel, and the worm is meshed with the worm gear; the driving wheel rotates through the drive of the conveyor belt, so that the worm drives the worm gear to rotate, and then drives the grinding mechanism to perform rotational grinding on the blade extending into the grinding mechanism.

[0006] By arranging the driving wheel in contact with the conveyor belt to drive the grinding mechanism to perform rotational grinding on the surface of the blade after the blade completes cutting, it can prevent the blade from becoming dull, ensure the flatness and consistency of the product cut surface, improve the product quality, avoid frequent replacement of the blade, reduce the material cost, and improve the cutting efficiency.

[0007] Furthermore, the transmission mechanism includes a servo motor, a crank, a connecting column, a driving column, and a spherical joint; the servo motor is bolted to the upper part of the bracket, the output end of the servo motor passes through the bracket and is fixedly connected to the crank, there are two groups of cranks, the crank on the side far from the servo motor is rotatably connected to the bracket, the two groups of cranks are fixedly connected by a connecting column, the driving column is rotatably arranged in the middle of the connecting column with a limit, and the lower end of the driving column is inserted into the upper end of the spherical joint. Slide rails are also fixedly arranged in the middle of both sides of the bracket, both ends of the cutter head slide in the slide rails, a joint sleeve is opened on the upper part of the cutter head, and the lower end of the spherical joint is sleeved in the joint sleeve. By arranging the slide rails, the cutter head drives the blade to reciprocate in the vertical direction to cut the rubber sheet on the conveyor belt, and the movement speed of the cutter head can be changed by the servo motor, so that the size and speed of the rubber sheet cut can be adjusted according to actual needs.

[0008] Furthermore, the sanding mechanism includes a protective cover, a sanding disc, a rotating shaft, and a limiting rod; the lower end of the limiting rod is welded to the bottom wall of the protective cover, one end of the rotating shaft is rotatably connected to the upper end of the limiting rod, the other end of the rotating shaft is fixedly connected to the middle of the worm gear, and two groups of sanding discs are oppositely arranged in the middle of the rotating shaft. An inlet is provided in the upper part of the protective cover, a roller hole is provided in the lower part of the protective cover, there are two groups of driving wheels, the sides of the two groups of driving wheels are rotatably connected to the inner wall of the protective cover, and the lower part of the driving wheel extends out of the protective cover through the roller hole and contacts the conveyor belt. The surface of the sanding disc protrudes with a sanding surface, and the sanding surfaces in the middle of the two groups of sanding discs are in contact. The limiting rod, the rotating shaft, the sanding disc, and the worm gear are uniformly and obliquely arranged along the internal space of the protective cover in the horizontal direction. When the blade enters the protective cover after cutting, both sides of the blade are in contact with the sanding surface, making the friction received by the blade more uniform, and the whole blade is sanded, thereby increasing the service life of the blade. And the rotation of the sanding disc is driven without additional driving by the obliquely arranged worm gear cooperating with the worm driven by the driving wheel.

[0009] Furthermore, two groups of inclined plates are hinged on both sides of the outside of the protective cover, and the ends of the inclined plates away from the protective cover are in contact with the conveyor belt. The auxiliary mechanism includes a first support rod, a second support rod, a pressing wheel, a driven wheel, and a transmission belt; there are four groups of auxiliary mechanisms, which are respectively arranged on both sides of the conveyor belt and both sides of the bracket. One end of the first support rod is inserted into the bracket, and the other end of the first support rod is rotatably connected to the pressing wheel, and the pressing wheel is in contact with the conveyor belt; one end of the second support rod is inserted into the first support rod, and the other end of the second support rod is rotatably connected to the driven wheel, and the driven wheel is in contact with the inclined plate, and the middle of the pressing wheel and the driven wheel are connected by a transmission belt. By arranging the pressing wheel and the driven wheel, the rubber sheet conveyed onto the inclined plate is flattened, preventing the inner retraction of both ends of the rubber sheet during cutting, and enabling the cut rubber sheet to continue to move on the inclined plate, preventing the cut surface from being uneven, which can further improve the product quality and the operating stability of the device.

[0010] Compared with the prior art, it has the following beneficial effects:

[0011] The utility model provides a rubber sheet cutting machine. By arranging the driving wheel in contact with the conveyor belt to drive the sanding mechanism to rotate and sand the surface of the blade after the blade finishes cutting, it can prevent the blade from being dull, ensure the flatness and consistency of the product cut surface, improve the product quality, avoid frequent blade replacement, reduce the material cost, and improve the cutting efficiency.

[0012] When the blade enters the protective cover after cutting, both sides of the blade are in contact with the sanding surface, making the friction received by the blade more uniform, and the whole blade is sanded, thereby increasing the service life of the blade. And the rotation of the sanding disc is driven without additional driving by the obliquely arranged worm gear cooperating with the worm driven by the driving wheel.

[0013] The rubber sheet on the conveying inclined plate is flattened by the arranged pressing wheel and driven wheel, preventing the inward contraction of both ends of the rubber sheet during cutting, and enabling the cut rubber sheet to continue moving on the inclined plate, preventing the cut surface from being uneven, which can further improve the product quality and the stability of the device operation. Brief Description of the Drawings

[0014] Figure 1 It is an overall schematic diagram of a rubber sheet cutting machine of the present utility model;

[0015] Figure 2 It is an axial view of a rubber sheet cutting machine of the present utility model;

[0016] Figure 3 It is a schematic connection diagram of the driving wheel of a rubber sheet cutting machine of the present utility model;

[0017] Figure 4 It is a sectional view of the grinding mechanism of a rubber sheet cutting machine of the present utility model;

[0018] Figure 5 It is an internal schematic diagram of the protective cover of a rubber sheet cutting machine of the present utility model;

[0019] Figure 6 It is a schematic connection diagram of the grinding disc of a rubber sheet cutting machine of the present utility model;

[0020] Figure 7 It is a partial enlarged schematic diagram of part A of the present utility model.

[0021] In the figure: 1 - conveyor belt; 2 - bracket; 21 - slide rail; 3 - blade; 4 - transmission mechanism; 41 - servo motor; 42 - crank; 43 - connecting column; 44 - driving column; 45 - spherical joint; 5 - auxiliary mechanism; 51 - first support rod; 52 - second support rod; 53 - pressing wheel; 54 - driven wheel; 55 - transmission belt; 6 - grinding mechanism; 61 - protective cover; 611 - inlet; 612 - roller hole; 613 - inclined plate; 62 - grinding disc; 621 - abrasive surface; 63 - rotating shaft; 64 - limiting rod; 7 - cutter disc; 71 - joint sleeve; 8 - worm gear; 9 - driving wheel; 10 - worm. Detailed Embodiment

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1 to 7As shown in the figure, the present utility model provides the following technical solution: a rubber sheet cutting machine, which includes a conveyor belt 1, a bracket 2, a blade 3, a transmission mechanism 4, an auxiliary mechanism 5, and a grinding mechanism 6 for performing abrasive treatment on the blade 3 after each cutting; the bracket 2 is arranged on both sides of the conveyor belt 1, the transmission mechanism 4 is rotatably connected to the inner side of the bracket 2, a cutter head 7 is movably connected to the lower part of the transmission mechanism 4, the upper end of the blade 3 is embedded in the lower part of the cutter head 7, both sides of the grinding mechanism 6 are bolted to the inner side of the bracket 2, and the auxiliary mechanism 5 is bolted to the outer side of the bracket 2; an inclined worm gear 8 is arranged inside the grinding mechanism 6, and a driving wheel 9 that extends out of the grinding mechanism 6 and contacts the conveyor belt 1, a worm 10 is fixedly connected to the middle of the driving wheel 9, and the worm 10 meshes with the worm gear 8; the surface of the worm gear 8 is evenly arranged with helical teeth, the driving wheel 9 rotates through the driving of the conveyor belt 1, so that the worm 10 drives the worm gear 8 to rotate, and then drives the grinding mechanism 6 to perform rotational grinding on the blade 3 extending into the grinding mechanism 6. Among them, the lower part of the bracket 2 can be bolted to the ground, the processed long strip rubber is transported through the conveyor belt 1, the reciprocating movement driven by the transmission mechanism 4 drives the cutter head 7 to perform reciprocating displacement in the vertical direction, so as to drive the blade 3 to cut the rubber, and then the rubber sheet is subjected to hanging and drying treatment.

[0024] See Figure 1 and Figure 2 , the transmission mechanism 4 includes a servo motor 41, a crank 42, a connecting column 43, a driving column 44, and a spherical joint 45; the servo motor 41 is bolted to the upper part of the bracket 2, the output end of the servo motor 41 passes through the bracket 2 and is fixedly connected to the crank 42, there are two groups of cranks 42, the crank 42 on the side far from the servo motor 41 is rotatably connected to the bracket 2, the two groups of cranks 42 are fixedly connected through the connecting column 43, the driving column 44 is rotatably arranged in the middle of the connecting column 43 with a limit, and the lower end of the driving column 44 is inserted into the upper end of the spherical joint 45. When it is necessary to cut the rubber, start the servo motor 41, its output end drives the crank 42 to rotate, and then drives the connecting column 43 to perform circular rotation, so that the driving column 44 generates a circular displacement without rotating itself, and then drives the cutter head 7 to perform reciprocating movement in the vertical direction, so that the blade 3 cuts the rubber.

[0025] See Figure 2, on the middle parts of both sides of the bracket 2, slide rails 21 are fixedly arranged. Both ends of the cutter head 7 slide in the slide rails 21. An articulation sleeve 71 is opened on the upper part of the cutter head 7. The lower end of the spherical joint 45 is sleeved in the articulation sleeve 71. When the driving column 44 makes a circumferential displacement, it drives the spherical joint 45 to deflect reciprocally. By using the movable connection between the spherical joint 45 and the articulation sleeve 71, the cutter head 7 makes a reciprocating motion. At the same time, both sides of the cutter head 7 are limited in the slide rails 21 and can only make a displacement in the vertical direction, so that the blade 3 makes a reciprocating cut in the vertical direction driven by the cutter head 7. At the same time, the servo motor 41 can change the rotation speed to adapt to different cutting requirements, and at the same time makes the blade 3 be quickly lifted after the cutting is completed.

[0026] As another embodiment, as Figures 2 to 6 shown, the sanding mechanism 6 includes a protective cover 61, a sanding disc 62, a rotating shaft 63 and a limiting rod 64; both sides of the protective cover 61 are inserted into the bracket 2. The lower end of the limiting rod 64 is welded to the bottom wall of the protective cover 61. One end of the rotating shaft 63 is rotatably connected to the upper end of the limiting rod 64. The other end of the rotating shaft 63 is fixedly connected to the middle part of the worm gear 8. Two groups of sanding discs 62 are oppositely arranged in the middle part of the rotating shaft 63. The protective cover 61 is arranged below the blade 3. When the conveyor belt 1 runs, the conveyor belt 1 drives the driving wheel 9 in contact with it to rotate, and then makes the worm 10 rotate, driving the worm gear 8 meshing with the worm 10 to rotate, and then driving the rotating shaft 63 to rotate. The rotation of the rotating shaft 63 drives the oppositely arranged sanding discs 62 arranged in the middle part of the rotating shaft 63 to rotate. When the blade 3 makes a cut, the blade 3 enters the inside of the protective cover 61 and contacts the sanding disc 62, and the blade 3 is sanded by the rotation of the sanding disc 62.

[0027] Refer to Figure 3 and Figure 4 , an inlet opening 611 is opened on the upper part of the protective cover 61, and a roller hole 612 is opened on the lower part of the protective cover 61. There are two groups of driving wheels 9. The side parts of the two groups of driving wheels 9 are rotatably connected to the inner wall of the protective cover 61. The lower part of the driving wheel 9 extends out of the protective cover 61 through the roller hole 612 and contacts the conveyor belt 1. The inlet opening 611 corresponds to the position of the blade 3, so that the blade 3 enters the inside of the protective cover 61 through the inlet opening 611 when moving downwards.

[0028] Refer to Figure 6, the surface of the abrasive disc 62 protrudes with an abrasive surface 621. The middle parts of the abrasive surfaces 621 of the two groups of abrasive discs 62 are in contact. The limiting rods 64, the rotating shafts 63, the abrasive discs 62, and the worm gears 8 are arranged uniformly and obliquely along the horizontal direction in the internal space of the protective cover 61. Among them, the abrasive surface 621 is set as an inclined fan-shaped surface. The two groups of oppositely arranged abrasive discs 62 enable the blade 3 to directly contact the abrasive surface 621 during the downward movement, without contacting the cutter rotating shaft 63, and enable the abrasive surface 621 to grind the blade 3 on both sides. Multiple groups of worm gears 8 are all meshed with the worm 10, so that when the worm 10 rotates, it drives multiple groups of worm gears 8 to rotate synchronously, and further drives multiple groups of abrasive discs 62 to rotate synchronously.

[0029] As another embodiment, as Figure 1 , Figure 2 and Figure 7 shown, two groups of inclined plates 613 are hinged on both sides of the outside of the protective cover 61. One end of the inclined plate 613 away from the protective cover 61 contacts the conveyor belt 1. When the conveyor belt 1 transports the rubber close to the abrasive mechanism 6, it is conveyed onto the inclined plate 613, and the rubber is displaced to the upper end of the protective cover 61 for cutting through the auxiliary mechanism 5.

[0030] Refer to Figure 7 , the auxiliary mechanism 5 includes a first support rod 51, a second support rod 52, a pressure wheel 53, a driven wheel 54, and a transmission belt 55; there are four groups of auxiliary mechanisms 5, which are respectively arranged on both sides of the conveyor belt 1 and both sides of the bracket 2. One end of the first support rod 51 is inserted into the bracket 2, and the other end of the first support rod 51 is rotatably connected to the pressure wheel 53, and the pressure wheel 53 contacts the conveyor belt 1; one end of the second support rod 52 is inserted into the first support rod 51, and the other end of the second support rod 52 is rotatably connected to the driven wheel 54, and the driven wheel 54 contacts the inclined plate 613. The middle parts of the pressure wheel 53 and the driven wheel 54 are connected by the transmission belt 55. The pressure wheel 53 is driven by the conveyor belt 1 to rotate, and then drives the driven wheel 54 to rotate through the transmission belt 55. The rubber first contacts the pressure wheel 53 on the conveyor belt 1, so that the rubber is between the pressure wheel 53 and the conveyor belt 1. Subsequently, the rubber is conveyed onto the inclined plate 613 and continues to be displaced by the pressing of the driven wheel 54. Finally, it is cut at the inlet 611 opened at the upper part of the protective cover 61. Among them, both the pressure wheel 53 and the driven wheel 54 have a certain elasticity in the vertical direction to adapt to the thickness of the rubber sheet. The cut rubber sheet is driven by the driven wheel 54 to continue moving until it returns to the conveyor belt 1 for the next process.

[0031] Working principle: When in use, the rubber to be cut is transported through the conveyor belt 1, and the device bolts are installed on both sides of the conveyor belt 1. During the transportation of the rubber, it is transported to the upper part of the sanding mechanism 6 through the inclined plate 613. At this time, the transmission mechanism 4 drives the blade 3 to reciprocate in the vertical direction through the transmission of the servo motor 41 and the crank 42, and then cuts the rubber above the protective cover 61. The cutting position is located at the inlet 611 above the protective cover 61. After the cutting is completed, the blade 3 enters the inside of the protective cover 61, and drives the worm 10 to rotate through the driving wheel 9 in contact with the conveyor belt 1, and then drives the array worm gear 8 to rotate, so that the sanding disc 62 arranged inside the protective cover 61 uses the frosted surface 621 to rotate and sand the blade 3. The cut rubber sheet continues to move in the transmission and transportation of the pressure wheel 53 and the driven wheel 54 until it breaks away from the inclined plate 613 and falls into the conveyor belt 1 again for the next step.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rubber sheet cutting machine, characterized in that , including a conveyor belt (1), a bracket (2), a blade (3), a transmission mechanism (4), an auxiliary mechanism (5), and a grinding mechanism (6) for grinding the blade (3) after each cutting; the bracket (2) is arranged on both sides of the conveyor belt (1), the transmission mechanism (4) is rotatably connected to the inner side of the bracket (2), a cutter head (7) is movably connected to the lower part of the transmission mechanism (4), the upper end of the blade (3) is embedded in the lower part of the cutter head (7), both sides of the grinding mechanism (6) are bolted to the inner side of the bracket (2), and the auxiliary mechanism (5) is bolted to the outer side of the bracket (2); an inclined worm gear (8) is arranged in the grinding mechanism (6), and a driving wheel (9) extending out of the grinding mechanism (6) and contacting the conveyor belt (1) is provided, a worm (10) is fixedly connected to the middle of the driving wheel (9), and the worm (10) meshes with the worm gear (8); the driving wheel (9) rotates through the driving of the conveyor belt (1), so that the worm (10) drives the worm gear (8) to rotate, and then drives the grinding mechanism (6) to rotate and grind the blade (3) extending into the grinding mechanism (6).

2. The rubber sheet cutting machine according to claim 1, wherein The transmission mechanism (4) includes a servo motor (41), a crank (42), a connecting column (43), a driving column (44), and a ball joint (45); the servo motor (41) is bolted to the upper part of the bracket (2), the output end of the servo motor (41) passes through the bracket (2) and is fixedly connected to the crank (42), there are two groups of the cranks (42), the crank (42) on the side far from the servo motor (41) is rotatably connected to the bracket (2), the two groups of cranks (42) are fixedly connected through the connecting column (43), the driving column (44) is rotatably arranged in the middle of the connecting column (43) with a limit, and the lower end of the driving column (44) is inserted into the upper end of the ball joint (45).

3. The rubber sheet cutting machine according to claim 2, wherein Sliding rails (21) are also fixedly arranged in the middle of both sides of the bracket (2), both ends of the cutter head (7) slide in the sliding rails (21), a joint sleeve (71) is opened in the upper part of the cutter head (7), and the lower end of the ball joint (45) is sleeved in the joint sleeve (71).

4. The rubber sheet cutting machine according to claim 3, wherein The grinding mechanism (6) includes a protective cover (61), a grinding disc (62), a rotating shaft (63), and a limiting rod (64); both sides of the protective cover (61) are inserted into the bracket (2), the lower end of the limiting rod (64) is welded to the bottom wall of the protective cover (61), one end of the rotating shaft (63) is rotatably connected to the upper end of the limiting rod (64), the other end of the rotating shaft (63) is fixedly connected to the middle of the worm gear (8), and two groups of the grinding discs (62) are oppositely arranged in the middle of the rotating shaft (63).

5. The rubber sheet cutting machine according to claim 4, characterized in that, The upper part of the protective cover (61) is provided with a feed inlet (611), and the lower part of the protective cover (61) is provided with a roller hole (612). There are two sets of driving wheels (9), and the sides of the two sets of driving wheels (9) are rotatably connected to the inner wall of the protective cover (61). The lower part of the driving wheel (9) extends out of the protective cover (61) through the roller hole (612) and contacts the conveyor belt (1).

6. The rubber sheet cutting machine according to claim 5, wherein, The surface of the grinding disc (62) protrudes with a grinding surface (621), and the middle parts of the grinding surfaces (621) of the two sets of grinding discs (62) are in contact. The limiting rod (64), the rotating shaft (63), the grinding disc (62), and the worm wheel (8) are arranged uniformly and obliquely along the horizontal direction in the internal space of the protective cover (61).

7. The rubber sheet cutting machine according to claim 6, characterized in that, Two sets of inclined plates (613) are hinged on both sides of the outside of the protective cover (61), and one end of the inclined plate (613) away from the protective cover (61) contacts the conveyor belt (1).

8. The rubber sheet cutting machine according to claim 7, characterized in that, The auxiliary mechanism (5) includes a first support rod (51), a second support rod (52), a pressure wheel (53), a driven wheel (54), and a transmission belt (55); there are four sets of the auxiliary mechanisms (5), which are respectively arranged on both sides of the conveyor belt (1) and both sides of the bracket (2). One end of the first support rod (51) is inserted into the bracket (2), and the other end of the first support rod (51) is rotatably connected to the pressure wheel (53), and the pressure wheel (53) contacts the conveyor belt (1); one end of the second support rod (52) is inserted into the first support rod (51), and the other end of the second support rod (52) is rotatably connected to the driven wheel (54), and the driven wheel (54) contacts the inclined plate (613), and the middle parts of the pressure wheel (53) and the driven wheel (54) are connected by the transmission belt (55).

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