A device for cutting a material-pressing curtain

Abstract

The application provides a kind of anti- extrusion fabric curtain cutter device, including cutter, limit plate cylinder, limit plate, top block cylinder and top block;Wherein the cutter includes first cutter and second cutter;Limit plate cylinder is two, located at both sides of cutter;Limit plate is two, connected with limit plate cylinder;Top block cylinder is located directly below cutter;Top block is installed on top block cylinder, and top has cutting through slot.Initial state, cutter is in the state of merging, and both sides limit plate is flush with cutter bottom tip;When cutting fabric, top block cylinder drives top block to move up, extrudes and fixes fabric, then pushes limit plate upwards, limit plate retracts, cutter moves down relative to limit plate, pierces fabric, and pierces into cutting through slot;Drive structure drives first cutter and second cutter to move away from each other, and cuts fabric.The cutter device of the application can solve the technical problem that fabric is easily extruded due to the existence of cutter plate in the prior art, and improve the stability of equipment operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tire cord cutter, and particularly relates to a kind of anti-extrusion cord cutter device. BACKGROUND

[0002] The drum type laminating machine is a professional equipment for producing tires, which is used to accurately stack multiple layers of cord materials and tightly bond them through a hot pressing process to form a tire cord barrel required for manufacturing tires. The drum type laminating machine has high precision and high efficiency production capacity, and adopts an advanced automatic control system to accurately control various parameters in the laminating process, such as temperature, pressure and time, thereby ensuring the quality of the tire cord barrel to be stable and reliable.

[0003] As a raw material for manufacturing tire cord barrels, the rubber cord usually has a cord angle of 48 to 55 degrees (the cord angle refers to the included angle between the cord and the center line of the tire crown). When producing tires, the cord needs to be cut according to the specific size of the tire. During the cutting process, it must be cut along the gap between adjacent cords, and the cords must not be cut. Because the cord is a key supporting structure in the tire stress system, the intact cord can maintain the strength and toughness of the tire, so that it can withstand complex forces such as pressure and friction from all directions during vehicle driving, and effectively ensure the safety, durability and overall performance of the tire.

[0004] The existing cord cutter usually needs to cooperate with a cutter plate to cut the cord during operation. Specifically, the cord is first conveyed to the upper side of the cutter plate by a conveyor belt, and the cutter plate is provided with a cutter groove. During the cutting process, the cutter is inserted into the cutter groove from the top and moves to both sides along the cutter groove to cut the cord. However, the problem of this cord cutter is that the cutter angle needs to be adjusted according to the cord angle during operation. Whenever the cutter angle changes, the cutter plate must be adjusted at the same time. Due to this limitation, the cutter plate can only be placed above the conveyor belt, which results in a certain height difference between the cutter plate and the conveyor belt, and a small gap is formed between them. The cord material itself has a certain viscosity, which is easy to adhere to the conveyor belt during conveying, and then the front end enters the above-mentioned gap. Once the front end of the cord enters the gap, it cannot move upward to the upper side of the cutter plate, and extrusion occurs. In addition, the cord itself is thin and soft, which makes it difficult to climb to the upper side of the cutter plate. The above problems can cause extrusion. Once extrusion occurs, the subsequent cutting process must be stopped, and the cord must be reorganized before the production can continue. In addition, extrusion not only causes unnecessary extrusion of the cord, but also causes wrinkles or deformation on the surface of the cord, which affects the cutting precision and flatness of the cord, and further causes the quality of the finished product to be substandard, increasing the difficulty and cost of subsequent processing.

[0005] Therefore, how to design a kind of cord cutting device capable of avoiding extrusion phenomenon is a technical problem that has not been solved in the prior art. SUMMARY

[0006] Therefore, the technical problem to be solved by the present application is to overcome the technical defects in the prior art that the cutting angle needs to be adjusted according to the cord angle, the knife plate needs to be adjusted synchronously, so the knife plate can only be placed above the conveyor belt, resulting in a gap between the two; the cord has adhesion, and is easy to adhere to the conveyor belt during conveying, cannot be moved above the knife plate, and is easy to cause extrusion; and to provide a cord cutting device capable of avoiding extrusion phenomenon.

[0007] Therefore, the present application provides a kind of anti-extrusion cord cutting device, comprising:

[0008] The cutting knife includes a first cutting knife and a second cutting knife, and the first cutting knife and the second cutting knife are hung and installed on the cross beam by the driving structure;

[0009] In the initial state, the first cutting knife and the second cutting knife are in a combined state;

[0010] Under the driving of the driving structure, the first cutting knife and the second cutting knife can move synchronously along the cross beam in the direction away from each other and gradually separate, and can also move synchronously along the cross beam in the direction close to each other until the combined state is restored;

[0011] The limit plate cylinder is two, respectively hung and installed on the cross beam, and located on both sides of the combined cutting knife;

[0012] The limit plate is two, respectively fixedly connected with the output shaft of the two limit plate cylinders;

[0013] The top block cylinder is suitable for fixed installation, and is located directly below the combined cutting knife; the driving force of the top block cylinder is greater than the driving force of the limit plate cylinder;

[0014] The top block is fixedly installed on the output shaft of the top block cylinder at the bottom, and has two top block protrusions at the top, respectively opposite to the limit plates, and a cutting through slot is formed in the middle of the two top block protrusions; the cutting through slot is opposite to the combined cutting knife up and down;

[0015] In the initial state, the cutting knife is in a combined state, and the limit plates on both sides extend downward a certain length along with the output shaft of the limit plate cylinder, to the bottom surface flush with the bottom knife tip of the combined cutting knife;

[0016] When cutting the cord fabric, the top block cylinder drives the top block to move upward, first presses and fixes the cord fabric between the top block protrusion and the limiting plate, then continues to push the limiting plate upward, the output shaft of the limiting plate cylinder retracts upward, the limiting plate follows the retraction, the cutting knife moves downward relative to the limiting plate, pierces the cord fabric, and penetrates into the cutting groove; the driving structure drives the first cutting knife and the second cutting knife to move synchronously in the direction away from each other, and cuts the cord fabric.

[0017] As a preferred solution, the first cutting knife comprises a first cutting part and a piercing part integrally formed at the bottom of the first cutting part; the bottom of the piercing part forms a V-shaped blade, the top of the piercing part is provided with a first horizontal surface and a second horizontal surface respectively, the outer side of the first cutting part forms a first blade, the first blade extends to the connection between the first cutting part and the first horizontal surface and continues to extend on the first horizontal surface; the first blade and the first horizontal surface of the first cutting part form an acute angle; the height of the first horizontal surface is higher than the height of the second horizontal surface;

[0018] The second cutting knife comprises a second cutting part and a supporting part integrally formed at the bottom of the second cutting part; the top of the supporting part is provided with a third horizontal surface, and the bottom of the supporting part is provided with a fourth horizontal surface; the outer side of the second cutting part forms a second blade, the second blade extends to the connection between the second cutting part and the third horizontal surface and continues to extend on the third horizontal surface; the second blade and the third horizontal surface of the second cutting part form an acute angle;

[0019] When the first cutting knife and the second cutting knife are in the combined state, the fourth horizontal surface and the second horizontal surface are in contact, and the third horizontal surface and the first horizontal surface are substantially at the same height.

[0020] As a preferred solution, the two top block protrusions each have a sharp corner facing each other, and the tip of the cutting knife in the initial state is located directly above the line connecting the two sharp corners;

[0021] The top block protrusion has two side surfaces to form the sharp corner, one of the side surfaces is substantially parallel to the moving direction of the cord fabric, and the other side surface forms an angle of 20-40° with the moving direction of the cord fabric.

[0022] As a preferred solution, the driving structure comprises:

[0023] a cross beam;

[0024] a ball screw fixedly installed below the cross beam, comprising a first screw and a second screw coaxially arranged, and the thread arrangement directions of the first screw and the second screw are opposite;

[0025] The first driving device is fixedly installed at one end of the cross beam and has a first driving shaft fixedly connected with one end of the ball screw;

[0026] The first driving member is provided at the top with a first ball nut threadedly connected with the first screw rod, and is provided at the bottom with the first cutter fixedly installed.

[0027] The second driving member is provided at the top with a second ball nut threadedly connected with the second screw rod, and is provided at the bottom with the second cutter fixedly installed.

[0028] As a preferred solution, the first cutter further comprises:

[0029] The first cutter adjusting member is fixedly installed on the first driving member and has a first adjusting slide rail.

[0030] The first cutter sliding member is slidably installed on the first adjusting slide rail.

[0031] The first cutter abutting member is fixedly installed on the first cutter sliding member.

[0032] The first cutter head is fixedly installed below the first cutter abutting member.

[0033] As a preferred solution, the second cutter further comprises:

[0034] The second cutter adjusting member is fixedly installed on the second driving member and has a second adjusting slide rail.

[0035] The second cutter sliding member is slidably installed on the second adjusting slide rail.

[0036] The second cutter abutting member is fixedly installed on the second cutter sliding member.

[0037] The second cutter head is fixedly installed below the second cutter abutting member.

[0038] As a preferred solution, it further comprises an abutting member in the shape of inverted U, which is fixedly installed above the cutter and can rotate synchronously with the cross beam.

[0039] The first cutter abutting member and the second cutter abutting member each have opposite guide surfaces and arc-shaped transition surfaces arranged in front of the guide surfaces, and when the first cutter and the second cutter are matched and abutted, the first cutter abutting member and the second cutter abutting member each enter the inside of the abutting member through the arc-shaped transition surfaces, and the two guide surfaces respectively abut and contact the corresponding inner side walls of the abutting member.

[0040] As a preferred solution, it further comprises:

[0041] The first cutter heating device is installed on the first cutter butt joint and connected with the first cutter head to heat the first cutter head.

[0042] The second cutter heating device is installed on the second cutter butt joint and connected with the second cutter head to heat the second cutter head.

[0043] As a preferred solution, it further comprises:

[0044] The mounting beam is suitable for fixed installation.

[0045] The rotary bearing is fixedly connected at the top with the bottom of the mounting beam and fixedly connected at the bottom with the cross beam.

[0046] The second driving device has a second driving shaft, and the free end of the second driving shaft is fixedly installed with a driving gear. The transmission belt is sleeved on the driving gear and the driven gear, so that the second driving device can drive the rotary bearing to rotate, and in turn drive the cross beam to rotate relative to the mounting beam.

[0047] As a preferred solution, the bottom surface of the rotary bearing is fixedly installed with a second mounting plate, and the cross beam is fixedly installed on the second mounting plate.

[0048] As a preferred solution, it further comprises two pressing plate cylinders fixedly installed on the second mounting plate and respectively located on both sides of the combined cutter.

[0049] The pressing plate is fixedly connected with the output shaft of the two pressing plate cylinders.

[0050] In the initial state, the bottom surface of the pressing plate is higher than the cord fabric, and the cord fabric is not extruded and fixed.

[0051] When cutting the cord fabric, the pressing plate extends downward along the output shaft of the pressing plate cylinder by a certain length, extruding and fixing the cord fabric between the pressing plate and the conveying belt for conveying the cord fabric.

[0052] The technical solution provided by the present application has the following advantages:

[0053] The anti-material extrusion cord cutting device of the application comprises a cutting knife, a limiting plate cylinder, a limiting plate, a top block cylinder and a top block; the cutting knife comprises a first cutting knife and a second cutting knife, both of which are hung and installed on a cross beam through a driving structure; in the initial state, the first cutting knife and the second cutting knife are in a combined state; under the driving of the driving structure, the first cutting knife and the second cutting knife can move synchronously along the cross beam in the direction away from each other to gradually separate, and can also move synchronously along the cross beam in the direction close to each other until the combined state is restored; the limiting plate cylinder is two, which are hung and installed on the cross beam respectively and located on both sides of the combined cutting knife; the limiting plate is two, which are fixedly connected with the output shafts of the two limiting plate cylinders respectively; the top block cylinder is fixedly installed and located directly below the combined cutting knife; the driving force of the top block cylinder is greater than that of the limiting plate cylinder; the bottom of the top block is fixedly installed on the output shaft of the top block cylinder, and the top has two top block protrusions opposite to the limiting plates, and a cutting through slot is formed in the middle of the two top block protrusions; the cutting through slot is opposite to the combined cutting knife in the up-down direction.

[0054] In the use of the anti-material extrusion cord cutting device of the application, in the initial state, the cutting knife is in a combined state, the limiting plates on both sides extend downward along the output shaft of the limiting plate cylinder by a certain length, and the bottom surface is flush with the bottom blade tip of the combined cutting knife; when cutting the cord, the top block cylinder drives the top block to move upward, first extrudes and fixes the cord between the top block protrusion and the limiting plate, and then continues to push the limiting plate upward, drives the output shaft of the limiting plate cylinder to retract upward, and the limiting plate retracts along with it, the cutting knife moves downward relative to the limiting plate, pierces the cord, and pierces into the cutting through slot; the driving structure drives the first cutting knife and the second cutting knife to move synchronously in the direction away from each other to cut the cord; when the cord cutting is completed, the driving structure drives the two cutting knives to return to the initial state, the top block cylinder drives the top block to return to the initial state, and the limiting plate cylinder drives the limiting plate to return to the initial state. Compared with the prior art, the anti-material extrusion cord cutting device of the application cancels the knife plate structure and is arranged between the adjacent two conveying belts, fixes the cord at the cutting position through the cooperation of the limiting plate and the top block during the cutting process of the cord, solves the technical problem that the cord is easily extruded due to the existence of the knife plate in the prior art, and improves the stability of the equipment operation.

[0055] In the use of the anti-material extrusion cord cutting device of the application, in the initial state, the cutting knife is in a combined state, the limiting plates on both sides extend downward along the output shaft of the limiting plate cylinder by a certain length, and the bottom surface is flush with the bottom blade tip of the combined cutting knife; when cutting the cord, the top block cylinder drives the top block to move upward, first extrudes and fixes the cord between the top block protrusion and the limiting plate, and then continues to push the limiting plate upward, drives the output shaft of the limiting plate cylinder to retract upward, and the limiting plate retracts along with it, the cutting knife moves downward relative to the limiting plate, pierces the cord, and pierces into the cutting through slot; the driving structure drives the first cutting knife and the second cutting knife to move synchronously in the direction away from each other to cut the cord; when the cord cutting is completed, the driving structure drives the two cutting knives to return to the initial state, the top block cylinder drives the top block to return to the initial state, and the limiting plate cylinder drives the limiting plate to return to the initial state. Compared with the prior art, the anti-material extrusion cord cutting device of the application cancels the knife plate structure and is arranged between the adjacent two conveying belts, fixes the cord at the cutting position through the cooperation of the limiting plate and the top block during the cutting process of the cord, solves the technical problem that the cord is easily extruded due to the existence of the knife plate in the prior art, and improves the stability of the equipment operation. BRIEF DESCRIPTION OF DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the prior art or the specific embodiments of the present application, the drawings used in the description of the prior art or the specific embodiments are briefly introduced below.

[0057] Figure 1 is the overall structure schematic diagram of the present application's material extrusion preventing curtain fabric cutting device.

[0058] Figure 2 is the structure schematic diagram of the present application's material extrusion preventing curtain fabric cutting device. Figure 1 is the structure enlarged schematic diagram of the A part in the present application.

[0059] Figure 3 is the structure schematic diagram of the present application's material extrusion preventing curtain fabric cutting device. Figure 1 is the structure schematic diagram of the present application's material extrusion preventing curtain fabric cutting device.

[0060] Figure 4 is the structure schematic diagram of the present application's material extrusion preventing curtain fabric cutting device. Figure 1 is the structure schematic diagram of the present application's material extrusion preventing curtain fabric cutting device.

[0061] Figure 5 is the structure schematic diagram of the present application's material extrusion preventing curtain fabric cutting device. Figure 1 is the structure schematic diagram of the present application's material extrusion preventing curtain fabric cutting device.

[0062] Figure 6 is the structure schematic diagram of the present application's material extrusion preventing curtain fabric cutting device. Figure 1 is the structure schematic diagram of the present application's material extrusion preventing curtain fabric cutting device.

[0063] Figure 7 is the structure schematic diagram of the present application's material extrusion preventing curtain fabric cutting device. Figure 1 is the structure schematic diagram of the present application's material extrusion preventing curtain fabric cutting device.

[0064] Figure 8 is the structure schematic diagram of the present application's material extrusion preventing curtain fabric cutting device. Figure 1 is the structure schematic diagram of the present application's material extrusion preventing curtain fabric cutting device.

[0065] Figure 9 is the structure schematic diagram of the present application's material extrusion preventing curtain fabric cutting device. Figure 1 is the structure schematic diagram of the present application's material extrusion preventing curtain fabric cutting device.

[0066] 1, cutter; 2, first cutter; 21, first cutting part; 210, first blade; 22, puncture part; 23, first cutter adjusting part; 24, first adjusting slide rail; 25, first cutter sliding part; 26, first cutter butt joint part; 27, first cutter head; 28, first cutter heating device; 29, first horizontal plane; 30, second horizontal plane; 3, second cutter; 31, second cutting part; 310, second blade; 32, supporting part; 33, second cutter adjusting part; 34, second adjusting slide rail; 35, second cutter sliding part; 36, second cutter butt joint part; 37, second cutter head; 38, second cutter heating device; 39, third horizontal plane; 40, fourth horizontal plane; 4, limiting plate; 5, limiting plate air cylinder; 6, top block; 61, top block protrusion; 62, sharp corner; 63, side vertical surface; 7, cutting through slot; 8, top block air cylinder; 9, pressing plate; 91, pressing plate air cylinder; 10, cross beam; 11, first driving device; 12, first driving part; 13, second driving part; 14, butt joint part; 15, guide surface; 16, arc-shaped transition surface; 100, mounting beam; 101, rotary bearing; 102, driven gear; 103, second driving device; 104, driving gear; 105, transmission belt; 107, second mounting plate. DETAILED DESCRIPTION

[0067] For those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0068] It should be noted that the terms "first", "second" and the like in the claims and the description of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units is not limited to those clearly listed steps or units, but can also include other steps or units not clearly listed or inherent to the process, method, product or device.

[0069] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used for better description of the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific situation. In addition, the meaning of the term "a plurality of" should be two and more than two. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0070] The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments. Embodiment

[0071] The present embodiment provides a kind of anti- extrusion fabric cutter device, as shown in Figures 1-3 The first cutter 2 and the second cutter 3 are both hung and installed on the crossbeam 10 by driving structure;In initial state, the first cutter 2 and the second cutter 3 are in combined state;Under the driving of the driving structure, the first cutter 2 and the second cutter 3 can gradually separate along the crossbeam 10 in the direction away from each other synchronously, and also can move synchronously along the crossbeam 10 in the direction close to each other until restore combined state;The limit plate cylinder 5 is two, respectively hung and installed on the crossbeam 10, and located at the two sides of the cutter 1 after combination;The limit plate 4 is two, respectively fixedly connected with the output shaft of two limit plate cylinders 5;The top block cylinder 8 is suitable for fixed installation, and located directly below the cutter 1 after combination;The driving force of the top block cylinder 8 is greater than that of the limit plate cylinder 5;The top block 6 is fixedly installed at the bottom of the output shaft of the top block cylinder 8, and the top has two top block protrusions 61 respectively opposite to the limit plate 4, and cutting through slot 7 is formed in the middle of two top block protrusions 61;The cutting through slot 7 is opposite to the cutter 1 after combination.

[0072] In the use of the anti-pressing cord cutting device of the embodiment, in the initial state, the cutting knife 1 is in the combined state, the limiting plates 4 on both sides extend downward by a certain length along the output shaft of the limiting plate cylinder 5 to the bottom surface flush with the bottom knife tip of the combined cutting knife 1; when cutting the cord, the top block cylinder 8 drives the top block 6 to move upward, first presses and fixes the cord between the top block protrusion 61 and the limiting plate 4, and then continues to push the limiting plate 4 upward, the output shaft of the limiting plate cylinder 5 is retracted upward, the limiting plate 4 is retracted, and the cutting knife 1 moves downward relative to the limiting plate 4, pierces the cord, and pierces into the cutting groove 7; the driving structure drives the first cutting knife 2 and the second cutting knife 3 to move synchronously in the direction away from each other, and cuts the cord; when the cord cutting is completed, the driving structure drives the two cutting knives 1 to return to the initial state, the top block cylinder 8 drives the top block 6 to return to the initial state, and the limiting plate cylinder 5 drives the limiting plate 4 to return to the initial state. Compared with the prior art, the anti-pressing cord cutting device of the embodiment cancels the knife plate structure, and is arranged between the adjacent two conveying belts, in the process of cutting the cord, the cord is fixed at the cutting position by the cooperation of the limiting plate 4 and the top block 6, which can solve the technical problem that the cord is easily pressed in the prior art due to the existence of the knife plate, and improves the stability of the equipment operation.

[0073] As Figure 3 , 6As shown in Figure 7, the first cutting blade 2 includes a first cutting portion 21 and a piercing portion 22 integrally formed at the bottom of the first cutting portion 21; the bottom of the piercing portion 22 forms a V-shaped blade, and the top two sides are respectively provided with a first horizontal surface 29 and a second horizontal surface 30; a first blade 210 is formed on the outer side of the first cutting portion 21, the first blade 210 extends to the connection between the first cutting portion 21 and the first horizontal surface 29, and continues to extend a portion on the first horizontal surface 29; an acute angle is formed between the first blade 210 of the first cutting portion 21 and the first horizontal surface 29; the height of the first horizontal surface 29 is higher than the height of the second horizontal surface 30; the second cutting blade 3 includes a second cutting portion 31 and a... The support portion 32 is formed at the bottom of the second cutting portion 31; the top of the support portion 32 is provided with a third horizontal surface 39, and the bottom is provided with a fourth horizontal surface 40; a second blade 310 is formed on the outer side of the second cutting portion 31, the second blade 310 extends to the connection between the second cutting portion 31 and the third horizontal surface 39, and continues to extend a portion on the third horizontal surface 39; an acute angle is formed between the second blade 310 of the second cutting portion 31 and the third horizontal surface 39; when the first cutting blade 2 and the second cutting blade 3 are in a combined state, the fourth horizontal surface 40 is in close contact with the second horizontal surface 30, and the third horizontal surface 39 is substantially at the same height as the first horizontal surface 29.

[0074] When the cutter 1 pierces the curtain fabric to cut it, the bladeless parts of the first horizontal plane 29 and the third horizontal plane 39 can lift the curtain fabric upwards, smoothing it out and avoiding wrinkles or stacking that may occur during the cutting process, thus improving the overall quality of the cutting operation. In conjunction with the pressure plate 9 and the pressure plate cylinder 91, when the cutter 1 lifts the curtain fabric upwards, it can also stretch the curtain fabric, increasing the distance between adjacent curtain threads, thereby facilitating cutting and avoiding damage to the curtain threads.

[0075] like Figure 4 As shown, the two top protrusions 61 each have sharp angles 62 facing each other, and the tip of the cutter 1 in the initial state is directly above the line connecting the two sharp angles 62. Each top protrusion 61 has two side faces 63 to form the sharp angles 62; one side face 63 is substantially parallel to the direction of fabric movement, and the other side face 63 forms a 20-40° angle with the direction of fabric movement. When changing to fabrics with different cord angles and adjusting the angle of the cutter 1 is necessary, the cutting groove 7 can match various cord angles, eliminating the need for the operator to rotate the top block 6 to adjust it to the same angle as the cutter 1.

[0076] like Figure 5As shown, the driving structure comprises: a crossbeam 10, a ball screw, a first driving device 11, a first driving piece 12 and a second driving piece 13; wherein the ball screw is fixedly installed below the crossbeam 10, comprising coaxially arranged first and second screws, and the thread arrangement directions of the first and second screws are opposite; the first driving device 11 is fixedly installed at one end of the crossbeam 10, having a first driving shaft, and the first driving shaft is fixedly connected with one end of the ball screw; the first driving piece 12 is fixedly provided with a first ball nut at the top, and the first ball nut is threadedly connected with the first screw; the first cutting knife 2 is fixedly installed at the bottom of the first driving piece 12; the second driving piece 13 is fixedly provided with a second ball nut at the top, and the second ball nut is threadedly connected with the second screw; and the second cutting knife 3 is fixedly installed at the bottom of the second driving piece 13. Through the thread connection of the ball screw and the ball nut, the first cutting knife 2 and the second cutting knife 3 can simultaneously move away from each other or simultaneously move towards each other.

[0077] As shown, Figure 6 The first cutting knife 2 further comprises: a first cutting knife adjusting piece 23, a first cutting knife sliding piece 25, a first cutting knife butt joint piece 26 and a first cutter head 27; wherein the first cutting knife adjusting piece 23 is fixedly installed on the first driving piece 12, having a first adjusting sliding rail 24; the first cutting knife sliding piece 25 is slidably installed on the first adjusting sliding rail 24; the first cutting knife butt joint piece 26 is fixedly installed on the first cutting knife sliding piece 25; and the first cutter head 27 is fixedly installed below the first cutting knife butt joint piece 26. In the process of cutting the cord fabric, when the cord angle changes slightly, under the action of the cord, the first cutter head 27 slides on the first adjusting sliding rail 24 through the first cutting knife sliding piece 25, so as to adapt to the cutting of the cord fabric according to the cord direction and will not cut off the cord.

[0078] As shown, Figure 7 The second cutting knife 3 further comprises: a second cutting knife adjusting piece 33, a second cutting knife sliding piece 35, a second cutting knife butt joint piece 36 and a second cutter head 37; wherein the second cutting knife adjusting piece 33 is fixedly installed on the second driving piece 13, having a second adjusting sliding rail 34; the second cutting knife sliding piece 35 is slidably installed on the second adjusting sliding rail 34; the second cutting knife butt joint piece 36 is fixedly installed on the second cutting knife sliding piece 35; and the second cutter head 37 is fixedly installed below the second cutting knife butt joint piece 36. In the process of cutting the cord fabric, when the cord angle changes slightly, under the action of the cord, the second cutter head 37 slides on the second adjusting sliding rail 34 through the second cutting knife sliding piece 35, so as to adapt to the cutting of the cord fabric according to the cord direction and will not cut off the cord.

[0079] As shown, Figure 5As shown, it also includes a connecting member 14, which is inverted U-shaped and fixedly installed above the cutter 1, and can rotate synchronously with the crossbeam 10. The first cutter connecting member 26 and the second cutter connecting member 36 each have opposing guide surfaces 15 and an arc-shaped transition surface 16 disposed in front of the guide surfaces 15. When the first cutter 2 and the second cutter 3 are matched and connected, the first cutter connecting member 26 and the second cutter connecting member 36 both enter the interior of the connecting member 14 through the arc-shaped transition surface 16, and the two guide surfaces 15 respectively abut against the corresponding inner sidewalls of the connecting member 14. The connecting member 14 helps the first cutter 2 and the second cutter 3 to fit properly, preventing the first cutter 2 and the second cutter 3 from not fitting completely, thus ensuring the curtain can be completely cut during the cutting process.

[0080] It also includes: a first cutting blade heating device 28 and a second cutting blade heating device 38; wherein, the first cutting blade heating device 28 is mounted on the first cutting blade connecting member 26 and connected to the first cutting head 27, for heating the first cutting head 27; the second cutting blade heating device 38 is mounted on the second cutting blade connecting member 36 and connected to the second cutting head 37, for heating the second cutting head 37. The heating devices can heat the cutting head, making it easier for the cutting head to cut the fabric.

[0081] like Figure 1 , 8 As shown, it also includes: a mounting beam 100, a slewing bearing 101, and a second drive device 103; wherein, the mounting beam 100 is suitable for fixed installation; the top of the slewing bearing 101 is fixedly connected to the bottom of the mounting beam 100, and the bottom is fixedly connected to the crossbeam 10; a driven gear 102 is fixedly provided on the top of the slewing bearing 101; the second drive device 103 has a second drive shaft, and a drive gear 104 is fixedly installed on the free end of the second drive shaft; a transmission belt 105 is sleeved on the drive gear 104 and the driven gear 102, so that the second drive device 103 can drive the slewing bearing 101 to rotate, thereby driving the crossbeam 10 to rotate relative to the mounting beam 100.

[0082] When cutting the curtain fabric, the second drive device 103 is first activated according to the angle of the curtain threads. The second drive device 103 drives the rotary bearing 101 to rotate, which in turn drives the crossbeam 10 to rotate. The crossbeam 10 drives the cutter 1 to rotate until the plane of the cutter 1 is parallel to the direction of the curtain threads. When changing to a curtain fabric with a different curtain thread angle and adjusting the cutting angle is required, the second drive device 103 is activated again. The second drive device 103 drives the rotary bearing 101 to rotate, which in turn drives the crossbeam 10 to rotate. The crossbeam 10 drives the cutter 1 to rotate until the plane of the cutter 1 is parallel to the direction of the curtain threads again, and then the cutting of the curtain fabric is started again.

[0083] like Figure 9 As shown, a second mounting plate 107 is fixedly installed on the bottom surface of the rotary bearing 101, and the crossbeam 10 is fixedly installed on the second mounting plate 107; it also includes two pressure plate cylinders 91, which are fixedly installed on the second mounting plate 107 and located on both sides of the combined cutter 1; there are two pressure plates 9, which are fixedly connected to the output shafts of the two pressure plate cylinders 91 respectively; in the initial state, the bottom surface of the pressure plate 9 is higher than the curtain fabric, and the curtain fabric is not squeezed and fixed; when cutting the curtain fabric, the pressure plate 9 extends downward a certain length along with the output shaft of the pressure plate cylinder 91, squeezing and fixing the curtain fabric between the pressure plate 9 and the conveyor belt used to transport the curtain fabric. When cutting the curtain fabric, the pressure plate 9 is used to squeeze and fix the curtain fabric to prevent the curtain fabric from being pulled off course by the cutter 1 during the cutting process; after the cutting is completed, the pressure plate 9 is lifted simultaneously by the pressure plate cylinder 91 and the limiting plate 4.

[0084] The anti-extrusion fabric cutting device in this embodiment is used as follows:

[0085] First, based on the angle of the cord on the curtain, the second drive device 103 is activated. The second drive device 103 drives the rotary bearing 101 to rotate, which in turn drives the crossbeam 10 to rotate. The crossbeam 10 drives the cutter 1 to rotate until the plane where the cutter 1 is located is parallel to the direction of the cord on the curtain.

[0086] The limiting plates 4 on both sides extend downward a certain length following the output axis of the limiting plate cylinder 5, until the bottom surface is flush with the bottom tip of the combined cutting blade 1; the pressure plates 9 on both sides extend downward a certain length following the output axis of the pressure plate cylinder 91, until the bottom surface is lower than the bottom tip of the combined cutting blade 1, thus squeezing and fixing the curtain fabric between the pressure plate 9 and the transmission belt used to transport the curtain fabric.

[0087] The top block cylinder 8 drives the top block 6 to move upward, first squeezing and fixing the curtain fabric between the top block protrusion 61 and the limiting plate 4, and then continuing to push the limiting plate 4 upward, pushing the output axis of the limiting plate cylinder 5 to retract upward, the limiting plate 4 retracts accordingly, and the cutting knife 1 moves downward relative to the limiting plate 4, piercing the curtain fabric and inserting it into the cutting groove 7.

[0088] The first driving device 11 is started, the first driving part 12 and the second driving part 13 are driven to move in the direction away from each other by the ball screw, and then the first cutter 2 and the second cutter 3 are driven to move in the direction away from each other to cut the cord fabric; during the movement, if the cord angle changes slightly, the first cutter head 27 slides on the first adjusting slide rail 24 through the first cutter sliding part 25 under the action of the cord, so as to adapt to the cord direction to cut the cord fabric without cutting the cord; similarly, the second cutter head 37 slides on the second adjusting slide rail 34 through the second cutter sliding part 35, so as to adapt to the cord direction to cut the cord fabric without cutting the cord;

[0089] After the cutting is completed, the first driving device 11 is reversed, the first driving part 12 and the second driving part 13 are driven to move in the direction close to each other by the ball screw, and then the first cutter 2 and the second cutter 3 are driven to move in the direction close to each other and return to the initial combined state, the top block 6 returns to the initial state driven by the top block cylinder 8, the limiting plate 4 returns to the initial state driven by the limiting plate cylinder 5 extending downward, and the pressing plate 9 returns to the initial state driven by the pressing plate cylinder 91 retracting upward;

[0090] When the first cutter 2 and the second cutter 3 are matched and docked, the first cutter docking part 26 and the second cutter docking part 36 enter the inside of the docking part 14 through the arc transition surface 16, and the two guide surfaces 15 are respectively in contact with the corresponding inner side walls of the docking part 14, so that the first cutter 2 and the second cutter 3 can be pulled back to the initial combined state of mutual adhesion during the docking process;

[0091] When the cord fabric with different cord angles needs to be replaced and the cutting angle needs to be adjusted, the second driving device 103 is started again, the second driving device 103 drives the rotary bearing 101 to rotate, the rotary bearing 101 drives the cross beam 10 to rotate, the cross beam 10 drives the cutter 1 to rotate, until the plane where the cutter 1 is located is parallel to the cord direction of the cord fabric again, and the cutting of the cord fabric is started again.

[0092] Obviously, the above embodiments are only examples for clearly illustrating, and are not limitation to the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments are not required to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the technical scheme.

Claims

1. A material extrusion preventing curtain fabric cutting device, characterized by, The utility model relates to a cutting device for cutting tire cord, comprising: a cutting device (1) comprising a first cutting device (2) and a second cutting device (3), both of which are hung on a beam (10) through a driving structure; in the initial state, the first cutting device (2) and the second cutting device (3) are in a combined state; under the drive of the driving structure, the first cutting device (2) and the second cutting device (3) can move synchronously along the beam (10) in the direction away from each other and gradually separate, and can also move synchronously along the beam (10) in the direction close to each other until the combined state is restored; limiting plate air cylinders (5) are two, respectively hung on the beam (10), and located on both sides of the combined cutting device (1); limiting plates (4) are two, respectively fixedly connected with the output shafts of the two limiting plate air cylinders (5); a top block air cylinder (8) is fixedly installed and located directly below the combined cutting device (1); the driving force of the top block air cylinder (8) is greater than that of the limiting plate air cylinder (5); a top block (6) is fixedly installed on the output shaft of the top block air cylinder (8), and the top part has two top block protrusions (61) respectively opposite to the limiting plates (4), and a cutting through slot (7) is formed in the middle of the two top block protrusions (61); the cutting through slot (7) is opposite to the combined cutting device (1) in the vertical direction; in the initial state, the cutting device (1) is in the combined state, and the limiting plates (4) on both sides extend downward along the output shaft of the limiting plate air cylinder (5) by a certain length, and the bottom surface is flush with the bottom blade tip of the combined cutting device (1); when cutting the tire cord, the top block air cylinder (8) drives the top block (6) to move upward, first presses and fixes the tire cord between the top block protrusions (61) and the limiting plates (4), and then continues to push the limiting plates (4) upward, so that the output shaft of the limiting plate air cylinder (5) retracts upward, the limiting plates (4) retract along with it, and the cutting device (1) moves downward relative to the limiting plates (4), so that the tire cord is pierced and inserted into the cutting through slot (7); the driving structure drives the first cutting device (2) and the second cutting device (3) to move synchronously in the direction away from each other, so as to cut the tire cord; the first cutting device (2) comprises a first cutting part (21) and a piercing part (22) integrally formed at the bottom of the first cutting part (21); the bottom of the piercing part (22) forms a V-shaped blade, and the top part is respectively provided with a first horizontal plane (29) and a second horizontal plane (30) on both sides; the outer side of the first cutting part (21) forms a first blade (210), which extends to the connection between the first cutting part (21) and the first horizontal plane (29) and continues to extend on the first horizontal plane (29) by a part; the first blade (210) of the first cutting part (21) and the first horizontal plane (29) form an acute angle; the height of the first horizontal plane (29) is higher than that of the second horizontal plane (30). The second cutting knife (3) comprises a second cutting part (31) and a supporting part (32) integrally formed at the bottom of the second cutting part (31); the top of the supporting part (32) is provided with a third horizontal plane (39), and the bottom is provided with a fourth horizontal plane (40); the outer side of the second cutting part (31) is formed with a second blade (310), the second blade (310) extends to the connection between the second cutting part (31) and the third horizontal plane (39) and continues to extend on the third horizontal plane (39) for a part; an acute angle is formed between the second blade (310) of the second cutting part (31) and the third horizontal plane (39); When the first cutting knife (2) and the second cutting knife (3) are in the merging state, the fourth horizontal plane (40) and the second horizontal plane (30) are in contact, and the third horizontal plane (39) and the first horizontal plane (29) are substantially at the same height.

2. The apparatus of claim 1 wherein: The two top block protrusions (61) each have a sharp corner (62) facing each other, and the tip of the cutting knife (1) in the initial state is located directly above the line connecting the two sharp corners (62); The top block protrusion (61) has two side vertical surfaces (63) to form the sharp corner (62), one side vertical surface (63) is substantially parallel to the moving direction of the cord fabric, and the other side vertical surface (63) forms an angle of 20-40° with the moving direction of the cord fabric.

3. The apparatus of claim 1 wherein: The driving structure comprises: a cross beam (10); a ball screw fixedly installed below the cross beam (10), comprising a first screw and a second screw coaxially arranged, and the screw thread arrangement directions of the first screw and the second screw are opposite; a first driving device (11) fixedly installed at one end of the cross beam (10), having a first driving shaft fixedly connected with one end of the ball screw; a first driving member (12) having a first ball nut fixedly arranged at the top, the first ball nut being threadedly connected with the first screw; the first driving member (12) is fixedly installed with the first cutting knife (2) at the bottom; a second driving member (13) having a second ball nut fixedly arranged at the top, the second ball nut being threadedly connected with the second screw; the second driving member (13) is fixedly installed with the second cutting knife (3) at the bottom.

4. The apparatus of claim 3 wherein, The first cutting knife (2) further comprises: a first cutting knife adjusting member (23) fixedly installed on the first driving member (12), having a first adjusting slide rail (24); a first cutting knife sliding member (25) slidably installed on the first adjusting slide rail (24); a first cutting knife butt joint member (26) fixedly installed on the first cutting knife sliding member (25); a first cutter head (27) fixedly installed below the first cutting knife butt joint member (26).

5. The apparatus of claim 3 wherein: The second cutting knife (3) further comprises: a second cutting knife adjusting member (33) fixedly installed on the second driving member (13), having a second adjusting slide rail (34); a second cutting knife sliding member (35) slidably installed on the second adjusting slide rail (34); Second cutting knife abutting piece (36), fixedly installed on the second cutting knife sliding piece (35); Second cutter head (37), fixedly installed below the second cutting knife abutting piece (36).

6. The apparatus of claim 4 or 5, wherein: It also includes an abutting piece (14), which is inverted U-shaped, fixedly installed directly above the cutting knife (1), and can rotate synchronously with the cross beam (10); The first cutting knife abutting piece (26) and the second cutting knife abutting piece (36) both have opposite guide surfaces (15), and arc transition surfaces (16) are arranged in front of the guide surfaces (15), when the first cutting knife (2) and the second cutting knife (3) are matched and abutted, the first cutting knife abutting piece (26) and the second cutting knife abutting piece (36) both enter the inside of the abutting piece (14) through the arc transition surface (16), and the two guide surfaces (15) are respectively in contact with the corresponding inner side walls of the abutting piece (14).

7. The apparatus of claim 3 wherein said means for preventing the build-up of material comprises a vacuum. It also includes: Mounting beam (100), suitable for fixed installation; Rotary bearing (101), the top is fixedly connected with the bottom of the mounting beam (100), and the bottom is fixedly connected with the cross beam (10); the top of the rotary bearing (101) is fixedly provided with a driven gear (102); Second driving device (103) has a second driving shaft, and the free end of the second driving shaft is fixedly provided with a driving gear (104); a transmission belt (105) is sleeved on the driving gear (104) and the driven gear (102), so that the second driving device (103) can drive the rotary bearing (101) to rotate, and in turn drive the cross beam (10) to rotate relative to the mounting beam (100).

8. The apparatus of claim 7 wherein: The bottom surface of the rotary bearing (101) is fixedly provided with a second mounting plate (107), and the cross beam (10) is fixedly installed on the second mounting plate (107).

9. The apparatus of claim 8 wherein: It also includes a pressing plate cylinder (91), which is two, fixedly installed on the second mounting plate (107), and respectively located on both sides of the combined cutting knife (1); Pressing plate (9), two, fixedly connected with the output shaft of the two pressing plate cylinders (91); In the initial state, the bottom surface of the pressing plate (9) is higher than the cord fabric, and the cord fabric is not extruded and fixed; When cutting the cord fabric, the pressing plate (9) extends downward with the output shaft of the pressing plate cylinder (91) by a certain length, extruding and fixing the cord fabric between the pressing plate (9) and the conveying belt for conveying the cord fabric.

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