Cutting device of elastic sewing machine

Abstract

The utility model belongs to the technical field of rubber string machines, and particularly relates to a material cutting device of a rubber string machine, which comprises a support frame, a movable cutter mechanism and a fixed cutter mechanism, the two ends of the sliding plate are arranged in the vertical sliding grooves in the two sides of the supporting frame in a sliding mode respectively; the movable blade is mounted on the sliding plate, and a plurality of strip-shaped holes I are formed in the movable blade; the guide piece is installed on the sliding plate and located at the side end of the movable blade, and the lower end of the guide piece is lower than the lower end of the movable blade; the first adjusting assembly is movably arranged at the upper end of the supporting frame; the two first driving pieces are installed on the first adjusting assembly, and the driving ends of the two first driving pieces are movably connected with the left end and the right end of the sliding plate correspondingly; by adjusting the fixing position of the first adjusting assembly on the supporting frame and adjusting the mounting angle of the movable blade on the sliding plate, the inclination angle of the movable blade is adjusted to adapt to a common cutter or an ultrasonic cutter, the whole movable blade mechanism does not need to be replaced, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber band machines, in particular to a material cutting device of a rubber band machine. Background Art

[0002] The production process of elastic bands is usually to use bundles or rolls of elastic bands as raw materials, cut them in sections, and sew them into rings. In this production process, it is usually completed manually or by operating multiple single machines with different functions. When producing elastic bands, such as underwear elastic bands, the elastic bands need to be cut according to size.

[0003] Existing elastic band machines have two cutting methods for cutting fabrics: ordinary cutting knife and ultrasonic cutting knife. Due to the adjustment of cutting requirements, improvement of cutting efficiency and quality or reduction of costs, different cutting methods need to be replaced. When switching between the two cutters for use, the entire cutting device needs to be replaced due to the different structures of the two cutters.

[0004] For example, an automatic rubber band machine disclosed in Chinese patent CN201920429727.X cuts the rubber band through an ultrasonic cutting device. The ultrasonic cutting device includes an upper cutting knife assembly and a lower anvil bottom mold assembly that cooperate with each other. When the ultrasonic cutting device needs to be replaced with an ordinary cutting knife for cutting, the upper cutting knife assembly and the lower anvil bottom mold assembly need to be completely disassembled and replaced.

[0005] Another example is a rubber band machine disclosed in Chinese patent CN202020890751.6, in which a cutting knife assembly is arranged on the frame of the feeding device, and the cutting knife assembly includes a moving knife and a knife table arranged relatively to each other. The moving knife is connected to a second power source and moves up and down to cut the material on the knife table. When the cutting knife assembly needs to be replaced with an ultrasonic cutting knife, the entire cutting knife assembly needs to be removed from the frame.

[0006] In summary, whether the ultrasonic cutter is replaced with a common cutter or the common cutter is replaced with an ultrasonic cutter, the entire cutting device needs to be replaced, which causes inconvenience in operation. Summary of the invention

[0007] The utility model aims to provide a cutting device for a rubber band machine, which can adjust the inclination angle of a movable blade to cooperate with different fixed blade mechanisms to cut the rubber band, thereby improving the problem of inconvenient replacement of the cutting device as a whole.

[0008] The purpose of the utility model is achieved in this way:

[0009] A cutting device for a rubber band machine, comprising:

[0010] Support frame;

[0011] A moving knife mechanism, which is mounted on the support frame;

[0012] A fixed knife mechanism is installed on the support frame, and a cutting area is formed between the movable knife mechanism and the fixed knife mechanism for cutting the rubber band;

[0013] Wherein, the moving knife mechanism has:

[0014] A sliding plate, both ends of which are slidably placed in the vertical sliding grooves on both sides of the support frame;

[0015] A moving blade is mounted on the sliding plate, and a plurality of strip holes are provided on the moving blade for adjusting the inclination angle of the moving blade on the sliding plate;

[0016] A guide member, which is mounted on the sliding plate, and the guide member is located at a side end of the moving blade, and the lower end of the guide member is lower than the lower end of the moving blade;

[0017] An adjustment component 1, which is movably arranged at the upper end of the support frame and is used to adjust the inclination angle of the sliding plate;

[0018] Two driving members 1, which are mounted on the adjusting assembly 1, and the driving ends of the two driving members 1 are movably connected to the left and right ends of the sliding plate respectively, so as to make the sliding plate slide up and down in the vertical sliding groove;

[0019] The inclination angle of the moving blade is adjusted by adjusting the fixing position of the adjusting component 1 on the supporting frame and by adjusting the installation angle of the moving blade on the sliding plate.

[0020] Preferably, the adjustment component 1 comprises:

[0021] Two adjustment plates 1, which are movably connected to the left and right sides of the support frame, and each of the adjustment plates 1 is connected to a driving member 1;

[0022] A connecting plate 1, wherein the middle portion is movably connected to the sliding plate, and the two ends of the connecting plate 1 are respectively hinged on the driving ends of the two driving members 1;

[0023] Wherein, the two ends of the connecting plate 1 are provided with connecting holes 1, which are used for the hinge shaft on the driving end of the driving member 1 to move in the connecting holes 1;

[0024] By adjusting the position of each adjusting plate 1 on the corresponding side end of the supporting frame, the connecting plate 1 is tilted to drive the sliding plate to tilt, thereby realizing the adjustment of the tilt angle of the moving blade.

[0025] Preferably, a second pressing plate is movably connected to the sliding plate, and the second pressing plate movably presses against the moving blade to fix the moving blade on the sliding plate.

[0026] Preferably, a mounting plate 1 is provided on the support frame, and the movable knife mechanism is installed on the mounting plate 1; limit convex strips are vertically provided at the left and right ends of the mounting plate 1, and a pressing plate 1 is provided at the end side of the limit convex strip, and one side end of the pressing plate protrudes from the side end of the limit convex strip and forms the vertical sliding groove between the pressing plate and the mounting plate 1;

[0027] Wherein, a fixing pin is connected to the limiting convex strip, the fixing pin is penetrated on the pressure plate 1, and a compression spring is sleeved on the fixing pin, the compression spring movably abuts against the pressure plate 1, so that the pressure plate 1 movably presses against both sides of the front end of the sliding plate.

[0028] Preferably, the movable knife mechanism has a width limiting component, which is placed in the cutting area and includes:

[0029] An adjusting rod 1 is passed through one side of the supporting frame, and a limiting member 1 is arranged at the end side of the adjusting rod 1, and a limiting portion 1 is provided on the limiting member 1;

[0030] A second adjusting rod is passed through the other side of the support frame, and a second limiting member is arranged at the end side of the second adjusting rod, and the second limiting member has a second limiting portion;

[0031] By adjusting the positions of the adjusting rod 1 and the adjusting rod 2 on the support frame, the positions of the limiting member 1 and the limiting member 2 in the cutting area are adjusted, so that the limiting member 1 and the limiting member 2 can be movably abutted against the side ends of the rubber band, and the limiting member 1 and the limiting member 2 can be movably abutted against the upper end of the rubber band, so as to limit the shaking of the rubber band.

[0032] Preferably, the fixed knife mechanism comprises:

[0033] A fixing plate, which is arranged on the supporting frame;

[0034] A fixed blade is mounted on the fixed plate, and when the movable blade moves downward, a shear force is formed between the fixed blade and the movable blade to cut the rubber band;

[0035] Or, the fixed knife mechanism comprises:

[0036] A fixing frame, which is installed at the lower end of the supporting frame;

[0037] an ultrasonic generator, which is mounted on the fixing frame;

[0038] The cutting board bottom mold is installed on the ultrasonic generator, and the cutting board bottom mold is located at the lower end of the moving blade. The cutting board bottom mold and the moving blade can cut the rubber band.

[0039] Preferably, a limiting component 1 is provided on the support frame, and the limiting component 1 comprises:

[0040] A limiting rod, which is passed through the support frame, and the lower end of the limiting rod is movably connected to the upper end of the sliding plate;

[0041] A plurality of fixing members are threadedly connected to the limiting rod, and the fixing members movably abut against the upper end of the supporting frame to limit the moving range of the sliding plate on the supporting frame.

[0042] Preferably, the driving end of the driving member 1 is threadedly connected to a hinge seat, the end of the hinge seat has a hinge groove, and hinge holes are oppositely arranged on both sides of the hinge groove. The end of the connecting plate 1 is movably placed in the hinge groove and hinged to the hinge hole, and the hinge groove has a space for the connecting plate 1 to rotate with the hinge hole as the center.

[0043] Preferably, a feeding device is mounted on the support frame and is used to feed the rubber band to the cutting area;

[0044] The feeding device comprises:

[0045] A roller 1, which is rotatably connected to the support frame;

[0046] A second roller is rotatably connected to the support frame, and the second roller movably abuts against the first roller;

[0047] A rotating assembly, which is mounted on the support frame and is used to drive the roller to rotate;

[0048] A rotating assembly is installed on the supporting frame and is used to drive the second roller to press against the first roller.

[0049] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

[0050] The movable knife mechanism designed by the utility model can adapt to two different fixed knife mechanisms. By adjusting the inclination angle of the movable knife, the movable knife can cooperate with the ordinary knife or the ultrasonic cutter to cut the cloth. When it is necessary to switch between the ordinary cutter and the ultrasonic cutter, it is only necessary to replace the fixed knife mechanism and assemble or remove the guide member without replacing the entire movable knife mechanism, which is easy to operate. At the same time, after the inclination angle of the movable knife is adjusted, it can be adapted to cut elastic bands of different thicknesses and materials without replacing the movable knife. The operation is convenient and there is no need to prepare multiple sets of movable knife blades with different blade inclination angles, which saves costs and storage space for knives. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a structural schematic diagram of the utility model.

[0052] Figure 2 It is a partial exploded view of the utility model.

[0053] Figure 3 It is an exploded view of the utility model.

[0054] Figure 4 It is a structural schematic diagram of the ultrasonic cutter of the utility model installed on the support frame.

[0055] Figure 5 This is an exploded view of the ultrasonic cutter of the utility model installed on the support frame.

[0056] Figure 6 This is an exploded view of a common cutter of the utility model installed on a support frame.

[0057] Figure 7 This is one of the structural schematic diagrams of the feeding device of the utility model.

[0058] Figure 8 This is the second structural schematic diagram of the feeding device of the utility model.

[0059] Reference numerals: 11, support frame; 12, fixing frame;

[0060] 3. Feeding device; 31. Roller 1; 32. Roller 2; 33. Rotating assembly; 34. Rotating assembly; 35. Measuring assembly;

[0061] 40. Cutting area; 41. Moving knife mechanism; 411. Sliding plate; 412. Moving blade; 413. Driving member 1; 414. Pressing plate 2; 415. Guide; 42. Fixed knife mechanism; 421. Fixed plate; 422. Fixed blade; 423. Ultrasonic generator; 424. Anvil bottom mold; 425. Strip hole 1; 43. Adjustment component 1; 431. Adjustment plate 1; 432. Connecting plate 1; 4321. Connecting hole 1; 433. Articulated seat; 433 1. hinge groove; 4332. hinge hole; 44. width limiting assembly; 441. adjusting rod 1; 442. adjusting rod 2; 443. limiting member 1; 444. limiting member 2; 445. limiting part 1; 446. limiting part 2; 45. limiting assembly 1; 451. limiting rod; 452. fixing member 1; 46. mounting plate 1; 460. vertical slide groove; 461. limiting convex strip; 462. pressure plate 1; 463. crossbeam; 47. fixing pin; 471. compression spring. DETAILED DESCRIPTION

[0062] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. Figure 1-Figure 8 .

[0063] Combination Figure 1-Figure 3, a cutting device of a rubber band machine, comprising: a support frame 11; a moving knife mechanism 41, which is installed on the support frame 11; a fixed knife mechanism 42, which is installed on the support frame 11, and a cutting area 40 is formed between the moving knife mechanism 41 and the fixed knife mechanism 42, which is used to cut the rubber band; wherein the moving knife mechanism 41 has: a sliding plate 411, two ends of which are respectively slidably placed in vertical slide grooves 460 on both sides of the support frame 11; a moving blade 412, which is installed on the sliding plate 411, and a plurality of strip holes 425 are opened on the moving blade 412, which are connected to the sliding plate 411 by passing through the strip holes 425 through screws or bolts or latches, and the inclination angle of the moving blade 412 on the sliding plate 411 is adjusted by adjusting the position of the screws or bolts or latches in the strip holes 425; a guide Part 415, which is installed on the sliding plate 411, and the guide part 415 is located at the side end of the moving blade 412, and the lower end of the guide part 415 is lower than the lower end of the moving blade 412; an adjusting component 43, which is movably arranged at the upper end of the support frame 11; and two driving components 413 (driving cylinders or linear motors), which are installed on the adjusting component 43, and the driving ends of the two driving components 413 are movably connected to the left and right ends of the sliding plate 411, respectively, for making the sliding plate 411 slide up and down in the vertical slide groove 460; by adjusting the fixed position of the adjusting component 43 on the support frame 11, the positions of the two driving components 413 on the left and right sides of the support frame 11 are adjusted, so that the inclination angle of the sliding plate 411 changes, thereby adjusting the inclination angle of the moving blade 412.

[0064] The ordinary cutter or ultrasonic cutter is adjusted by replacing the fixed blade mechanism 42. When the ordinary cutter is used, the lower blade of the movable blade 412 is adjusted to have a certain angle with the fixed blade 422 by adjusting the tilt angle of the movable blade 412, and the guide 415 is installed on the sliding plate 411, so that the movable blade 412 can cooperate with the fixed blade 422 of the fixed blade mechanism 42 to cut the cloth; when the ultrasonic cutter is used, the lower blade of the movable blade 412 is adjusted to have a certain angle with the fixed blade 422 by adjusting the tilt angle of the movable blade 412. The upper end surfaces of the anvil base mold 424 are parallel, and the guide piece 415 is removed from the sliding plate 411 at the same time, so that the movable blade 412 cooperates with the anvil base mold 424 to cut the rubber band; when the cutting device is replaced between an ordinary cutter and an ultrasonic cutter, there is no need to disassemble the entire movable knife mechanism 41, only the fixed knife mechanism 42 needs to be replaced, which is easy to operate; a set of movable knife mechanisms 41 can be adapted to ordinary cutters or ultrasonic cutters, with strong adaptability, and there is no need to set up an additional set of movable knife mechanisms 41, saving production costs.

[0065] At the same time, when a common cutter is used, the angle formed between the moving blade 412 and the fixed blade 422 affects the cutting effect of the rubber band. In order to adapt to rubber bands of different thicknesses or materials, the angle between the moving blade 412 and the fixed blade 422 needs to be changed. The fixed blade 422 is generally directly fixed on the fixed plate 421 (that is, the blade of the fixed blade 422 is horizontally arranged). Therefore, it is necessary to change the inclination angle of the moving blade 412 to adjust the angle between the moving blade 412 and the fixed blade 422. The existing solution adopts the method of preparing multiple sets of moving blades 412 with different blade inclination angles, and replacing the moving blades 412 according to different needs. 2. This method is cumbersome and troublesome to operate. It is necessary to prepare multiple sets of cutting tools, which will increase production costs and require more space to store cutting tools. The present design provides two adjustment methods for users to choose from. The inclination angle of the moving blade 412 after being installed on the sliding plate 411 can be adjusted by using a strip hole 425 on the moving blade 412, or the sliding plate 411 and the moving blade 412 can be adjusted as a whole by adjusting the component 43, so that the inclination angle of the moving blade 412 becomes larger to cope with thicker or more difficult to cut rubber bands, thereby ensuring the cutting effect of the rubber bands and avoiding the situation where the rubber bands cannot be cut.

[0066] When the fixed knife mechanism 42 adopts an ordinary cutter, the guide 415 is installed on the sliding plate 411. When the sliding plate 411 moves downward, the guide surface formed on the lower side of the guide 415 will contact the upper edge of the fixed blade 422, so that the side end of the guide 415 slides and abuts the front end surface of the fixed blade 422, thereby avoiding direct collision between the blades of the movable blade 412 and the fixed blade 422 to cause damage to the blades, thereby ensuring the service life and safety of the blades.

[0067] Combination Figure 2 and Figure 3The adjusting assembly 43 includes: two adjusting plates 431, each of which is provided with a waist-shaped hole, and the adjusting plates 431 are installed on the support frame 11 by passing the fixing parts (bolts or screws or latches) through the waist-shaped holes and connecting and fixing with the left and right sides of the support frame 11, and the fixing parts can slide in the waist-shaped holes by adjusting the tightness of the fixing parts, and each adjusting plate 431 is connected with a driving member 413; a connecting plate 432, the middle of which is movably connected to the sliding plate 411, and the two ends of the connecting plate 432 are respectively hinged on the driving ends of the two driving members 413; wherein, the two ends of the connecting plate 432 are provided with connecting holes 4321 for driving the driving member 413 The hinge shaft on the moving end moves in the connecting hole 4321. In order to ensure that the two ends of the connecting plate 432 can be connected to the driving end of the driving member 413 after the connecting plate 432 is tilted, the connecting hole 4321 adopts a waist-shaped hole or the hole diameter of the connecting hole 4321 is large enough to allow the hinge shaft to move in the connecting hole 4321; by adjusting the positions of the two adjusting plates 431 on the corresponding side ends of the support frame 11, the connecting plate 432 is tilted to drive the sliding plate 411 to tilt, thereby adjusting the tilt angle of the moving blade 412. After the tilt angle of the moving blade 412 is changed, it can not only be used to adapt to different fixed knife mechanisms 42, but also can be used to adapt to cutting of rubber bands of different thicknesses or materials.

[0068] In order to ensure the service life of the moving blade 412 after the moving blade 412 is installed on the sliding plate 411, in this scheme, a pressure plate 2 414 is movably connected to the sliding plate 411, and the pressure plate 2 414 is movably pressed against the moving blade 412 to fix the moving blade 412 on the sliding plate 411; corresponding connecting holes are provided on the pressure plate 2 414 and the sliding plate 411, and fixing parts (screws or bolts or pins) are provided in the connecting holes, and the middle part of the fixing part is penetrated into the strip hole 1 425 of the moving blade 412, and the moving blade 412 is clamped and fixed by connecting the pressure plate 2 414 and the sliding plate 411 with both ends of the fixing part respectively and making the gap between the pressure plate 2 414 and the sliding plate 411 smaller, so as to prevent the fixing part from directly pressing against the edge of the strip hole 1 425 of the moving blade 412, causing the moving blade 412 to be stressed and worn, thereby ensuring the service life of the moving blade 412.

[0069] Combination Figure 2 and Figure 3, a mounting plate 46 is provided on the support frame 11, and a moving knife mechanism 41 is installed on the mounting plate 46; a limiting convex strip 461 is vertically provided at the left and right ends of the mounting plate 46, and a pressing plate 462 is provided at the end side of the limiting convex strip 461, and a side end of the pressing plate 462 protrudes from the side end of the limiting convex strip 461 and forms a vertical slide groove 460 with the mounting plate 46; there is enough space between the bottoms of the vertical slide grooves 460 on the left and right sides of the support frame 11 for the sliding plate 411 to be placed when cutting obliquely (the sliding plate 411 is a rectangular parallelepiped, When it is tilted, it can also be placed between the two vertical slide grooves 460), and no matter whether the sliding plate 411 is tilted or not, the side end of the sliding plate 411 is partially placed in the vertical slide groove 460; wherein, a fixing pin 47 is connected to the limiting convex strip 461, and the fixing pin 47 is penetrated on the pressure plate 1 462, and a compression spring 471 is sleeved on the fixing pin 47, and the compression spring 471 movably abuts against the pressure plate 1 462, so that the pressure plate 1 462 movably presses against the two sides of the front end of the sliding plate 411; when a common cutter is used, as the knife moves, When the movable blade 412 moves downward, the guide member 415 will abut against the front end surface of the fixed blade 422, so that the pressure plate 462 on the side close to the guide member 415 moves forward to compress the compression spring 471, and the pressure plate 462 away from the guide member 415 presses the side end of the sliding plate 411 under the pressure of the compression spring 471, so that one side of the sliding plate 411 is inclined toward the front end surface, so that the movable blade 412 rotates forward, ensuring that when the movable blade 412 moves downward, the blade edge of the movable blade 412 and the blade edge of the fixed blade 422 are aligned. The blades will always be partially in contact with each other, ensuring that there is a shear force between the movable blade 412 and the fixed blade 422 to achieve cutting of the rubber band. At the same time, as the movable blade 412 moves downward a distance, the pressure plate 462 on the side away from the guide 415 will also move forward to compress the compression spring 471, ensuring the shear force between the movable blade 412 and the fixed blade 422, and avoiding excessive abutment and friction between the movable blade 412 and the fixed blade 422, thereby reducing the wear of the movable blade 412 and increasing its service life.

[0070] Combination Figure 1-Figure 3The movable knife mechanism 41 has a width limiting component 44, which is placed in the cutting area 40. The width limiting component 44 includes: an adjusting rod 441, which is inserted into the limiting convex strip 461 on one side of the support frame 11, and a limiting member 443 is provided at the end side of the adjusting rod 441, and a limiting portion 445 is provided on the limiting member 443; an adjusting rod 442, which is inserted into the limiting convex strip 461 on the other side of the support frame 11, and a limiting member 444 is provided at the end side of the adjusting rod 442, and a limiting portion 446 is provided on the limiting member 444; by adjusting the adjusting rod 441 and the adjusting rod 442 on the support frame 11, thereby adjusting the position of the limiting part 1 443 and the limiting part 2 444 in the cutting area 40, so that the limiting part 1 445 and the limiting part 2 446 can movably abut the side end of the rubber band, and the limiting part 1 443 and the limiting part 2 444 can movably abut the upper end of the rubber band to limit the shaking of the rubber band and ensure that the end of the rubber band is neat after cutting. The position of the adjusting rod 1 441 and the adjusting rod 2 442 on the support frame 11 is manually adjusted, which is easy to operate, so that the limiting part 1 445 and the limiting part 2 446 can better abut the two ends of the rubber band and avoid deformation of the rubber band due to excessive pressure.

[0071] Combination Figure 4-Figure 6 The fixed knife mechanism 42 includes: a fixed plate 421, which is arranged on the support frame 11; a fixed blade 422, which is installed on the fixed plate 421, and when the movable blade 412 of the movable knife mechanism 41 moves downward, a shear force is formed between the fixed blade 422 and the movable blade 412 to cut the rubber band; or, the fixed knife mechanism 42 includes: a fixed frame 12, which is installed at the lower end of the support frame 11; an ultrasonic generator 423, which is installed on the fixed frame 12; an anvil bottom mold 424, which is installed on the ultrasonic generator 423, and the anvil bottom mold 424 is located at the lower end of the movable blade 412, and the anvil bottom mold 424 and the movable blade 412 realize cutting the rubber band.

[0072] Combination Figure 1-Figure 3A limit assembly 45 is provided on the support frame 11, and the limit assembly 45 includes: a limit rod 451, which is penetrated on the cross beam 463 at the upper end of the support frame 11, and the lower end of the limit rod 451 is movably connected to the upper end of the sliding plate 411 (the lower end of the limit rod 451 is hinged to the upper end of the sliding plate 411 or the lower end of the limit rod 451 is threadedly connected to the sliding plate 411. When the threaded connection is made, the gap between the threads on the sliding plate 411 is large, thereby ensuring that the limit rod 451 can swing on the sliding plate 411 without falling off); a plurality of fixing members 452, which are threadedly connected to the limit rods 451 and the upper end of the limit rods 451 is movably connected to the upper end of the sliding plate 411. The fixing part 452 is on the rod 451, and the fixing part 452 movably abuts against the upper end of the crossbeam 463 of the support frame 11, which is used to limit the movement range of the sliding plate 411 on the support frame 11; when an ultrasonic cutter is used, the force with which the movable blade 412 abuts against the anvil bottom mold 424 cannot be too large, otherwise it will easily cause the anvil bottom mold 424 to be worn. Therefore, the position of the fixing part 452 on the limit rod 451 is adjusted to limit the downward position of the limit rod 451. The limit rod 451 limits the downward movement range of the sliding plate 411, thereby avoiding excessive pressure on the downward movement of the movable blade 412 against the anvil bottom mold 424.

[0073] The driving end of the driving member 413 is threadedly connected to a hinge seat 433, and the end of the hinge seat 433 has a hinge groove 4331, and hinge holes 4332 are oppositely arranged on both sides of the hinge groove 4331. The end of the connecting plate 432 is movably placed in the hinge groove 4331 and hinged to the hinge hole 4332, and the hinge groove 4331 has a space for the connecting plate 432 to rotate with the hinge hole 4332 as the center.

[0074] Combination Figure 7 and Figure 8 A feeding device 3 is provided on the support frame 11 for conveying the rubber band to the cutting area 40; the feeding device 3 includes: a roller 1 31, which is rotatably connected to the support frame 11; a roller 2 32, which is rotatably connected to the support frame 11, and the roller 2 32 movably abuts against the roller 1 31; a rotating component 33, which is installed on the support frame 11 and is used to drive the roller 1 31 to rotate; a rotating component 34, which is installed on the support frame 11 and is used to drive the roller 2 32 to press against the roller 1 31; a metering component 35, which is installed on the support frame 11 and is used to measure the conveying length of the rubber band.

[0075] The rotating assembly 33 has a motor, a transmission wheel 1, a transmission wheel 2 and a transmission belt. The transmission wheel 1 is rotated by the motor driving end, and the transmission wheel 1 drives the transmission wheel 2 to rotate through the transmission belt, and the transmission wheel 2 drives the roller 1 31 to rotate.

[0076] The rotating assembly 34 includes a driving cylinder, a transmission block, and a rotating frame. The driving cylinder is installed on the supporting frame 11. The transverse axis on the rotating frame intersects the supporting frame 11. The transmission block connects the transverse axis and the driving end of the driving cylinder. The rotating frame is rotatably connected to the roller 2 32 at one end away from the transverse axis. The driving cylinder drives the transmission block to rotate around the transverse axis as the center of the circle, so that the transmission block drives the rotating frame to rotate, so that the roller 2 32 is pressed against the roller 1 31.

[0077] The metering component 35 specifically refers to the structure disclosed in Chinese patent CN201920430316.2, which will not be repeated here.

[0078] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

[0079] It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0080] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or may be indirectly connected to the other element through an intermediate element.

[0081] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

Claims

1. A cutting device for a rubber band machine, characterized in that: include: Support frame (11); A moving knife mechanism (41), which is mounted on the support frame (11); A fixed knife mechanism (42) is mounted on the support frame (11), and a cutting area (40) is formed between the movable knife mechanism (41) and the fixed knife mechanism (42) for cutting the rubber band; Wherein, the movable knife mechanism (41) comprises: A sliding plate (411), both ends of which are slidably placed in the vertical sliding grooves (460) on both sides of the support frame (11); A movable blade (412) is mounted on the sliding plate (411), and a plurality of strip-shaped holes (425) are provided on the movable blade (412) for adjusting the inclination angle of the movable blade (412) on the sliding plate (411); A guide member (415) is mounted on the sliding plate (411), and the guide member (415) is located at the side end of the movable blade (412), and the lower end of the guide member (415) is lower than the lower end of the movable blade (412); An adjustment component (43) is movably arranged at the upper end of the support frame (11) and is used to adjust the inclination angle of the sliding plate (411); Two driving members (413) are mounted on the adjusting assembly (43), and the driving ends of the two driving members (413) are movably connected to the left and right ends of the sliding plate (411) respectively, so as to make the sliding plate (411) slide up and down in the vertical sliding groove (460); The inclination angle of the moving blade (412) is adjusted by adjusting the fixing position of the adjustment component 1 (43) on the support frame (11) and by adjusting the installation angle of the moving blade (412) on the sliding plate (411).

2. The cutting device of a rubber band machine according to claim 1, characterized in that: The regulating component one (43) comprises: Two adjustment plates (431) are movably connected to the left and right sides of the support frame (11), and each of the adjustment plates (431) is connected to a driving member (413); A connecting plate (432), wherein the middle portion is movably connected to the sliding plate (411), and the two ends of the connecting plate (432) are respectively hinged to the driving ends of the driving member (413); Wherein, the two ends of the connecting plate 1 (432) are provided with connecting holes 1 (4321) for allowing the hinge shaft on the driving end of the driving member 1 (413) to move in the connecting holes 1 (4321); By adjusting the position of each adjustment plate (431) on the corresponding side end of the support frame (11), the connection plate (432) is tilted to drive the sliding plate (411) to tilt, thereby achieving adjustment of the tilt angle of the movable blade (412).

3. The cutting device of a rubber band machine according to claim 2, characterized in that: The sliding plate (411) is movably connected to a second pressing plate (414), and the second pressing plate (414) movably presses against the moving blade (412) to fix the moving blade (412) on the sliding plate (411).

4. The cutting device of the rubber band machine according to claim 3, characterized in that: The support frame (11) is provided with a mounting plate (46), and the movable knife mechanism (41) is installed on the mounting plate (46); the left and right ends of the mounting plate (46) are vertically provided with limit convex strips (461), and the end side of the limit convex strip (461) is provided with a pressing plate (462), and the side end of the pressing plate (462) protrudes from the side end of the limit convex strip (461) and forms the vertical sliding groove (460) with the mounting plate (46); The limiting convex strip (461) is connected to a fixing pin (47), the fixing pin (47) is inserted into the pressure plate (462), and a compression spring (471) is sleeved on the fixing pin (47), the compression spring (471) movably abuts against the pressure plate (462), so that the pressure plate (462) movably presses against both sides of the front end of the sliding plate (411).

5. A cutting device for a rubber band machine according to any one of claims 1 to 4, characterized in that: The movable knife mechanism (41) has a width limiting component (44), and the width limiting component (44) is placed in the cutting area (40). The width limiting component (44) includes: An adjusting rod (441) is inserted through one side of the support frame (11), and a limiting member (443) is provided on the end side of the adjusting rod (441), and a limiting portion (445) is provided on the limiting member (443); A second adjusting rod (442) is passed through the other side of the support frame (11), and a second limiting member (444) is provided on the end side of the second adjusting rod (442), and a second limiting portion (446) is provided on the second limiting member (444); By adjusting the positions of the adjusting rod 1 (441) and the adjusting rod 2 (442) on the support frame (11), the positions of the limiting member 1 (443) and the limiting member 2 (444) in the cutting area (40) are adjusted, so that the limiting member 1 (445) and the limiting member 2 (446) are movably abutted against the side ends of the rubber band, and the limiting member 1 (443) and the limiting member 2 (444) are movably abutted against the upper end of the rubber band, so as to limit the shaking of the rubber band.

6. A cutting device for a rubber band machine according to claim 5, characterized in that: The fixed knife mechanism (42) comprises: A fixing plate (421) disposed on the supporting frame (11); A fixed blade (422) is mounted on the fixed plate (421), and when the movable blade (412) moves downward, a shear force is formed between the fixed blade (422) and the movable blade (412) to cut the rubber band; Or, the fixed knife mechanism (42) comprises: A fixing frame (12) mounted on the lower end of the supporting frame (11); an ultrasonic generator (423) mounted on the fixing frame (12); The anvil bottom mold (424) is installed on the ultrasonic generator (423), and the anvil bottom mold (424) is located at the lower end of the movable blade (412). The anvil bottom mold (424) and the movable blade (412) are used to cut the rubber band.

7. A cutting device for a rubber band machine according to claim 6, characterized in that: The support frame (11) is provided with a limiting component (45), and the limiting component (45) comprises: A limiting rod (451) is inserted into the support frame (11), and the lower end of the limiting rod (451) is movably connected to the upper end of the sliding plate (411); A plurality of fixing members (452) are threadedly connected to the limiting rod (451), and the fixing members (452) are movably abutted against the upper end of the support frame (11) to limit the movement range of the sliding plate (411) on the support frame (11).

8. The cutting device of a rubber band machine according to claim 2, characterized in that: The driving end of the driving member 1 (413) is threadedly connected to a hinge seat (433), the end of the hinge seat (433) has a hinge groove (4331), and hinge holes (4332) are oppositely arranged on both sides of the hinge groove (4331), the end of the connecting plate 1 (432) is movably placed in the hinge groove (4331) and hinged to the hinge hole (4332), and the hinge groove (4331) has a space for the connecting plate 1 (432) to rotate with the hinge hole (4332) as the center.

9. The cutting device of a rubber band machine according to claim 1, characterized in that: Also includes: A feeding device (3), which is mounted on the support frame (11) and is used to transport the rubber band to the cutting area (40); The feeding device (3) comprises: A roller (31) rotatably connected to the support frame (11); A second roller (32) is rotatably connected to the support frame (11), and the second roller (32) movably abuts against the first roller (31); A rotating assembly (33), which is mounted on the support frame (11) and is used to drive the roller 1 (31) to rotate; A rotating assembly (34) is mounted on the support frame (11) and is used to drive the second roller (32) to press against the first roller (31).

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