Anti-extrusion cord fabric cut-off knife device

Abstract

The invention provides an anti-extrusion curtain cloth cutter device. The anti-extrusion curtain cloth cutter device comprises a cutter, a limiting plate air cylinder, a limiting plate, an ejector block air cylinder and an ejector block. Wherein the cutter comprises a first cutter and a second cutter; the two limiting plate air cylinders are located on the two sides of the cutter. The two limiting plates are connected with the limiting plate cylinder; the ejector block air cylinder is located under the cutter. The top of the ejector block is provided with a cutting through groove. In an initial state, the cutter is in a combined state, and the limiting plates on the two sides are flush with a cutter point at the bottom of the cutter; when the curtain cloth is cut, the ejector block air cylinder drives the ejector block to move upwards, the curtain cloth is extruded and fixed, then the limiting plate is pushed upwards, the limiting plate retracts, the cutter moves downwards relative to the limiting plate, and the curtain cloth is punctured into the cutting through groove. The driving structure drives the first cutter and the second cutter to move in the direction away from each other to cut the curtain cloth. According to the cut-off knife device, the technical problem that in the prior art, due to the existence of a knife board, the cord fabric is prone to being squeezed can be solved, and the running stability of equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of tire cord cutters, and in particular to an anti-squeezing cord cutter device. Background Art

[0002] The drum laminating machine is a professional equipment for producing tires. It is used to accurately stack multiple layers of cord materials and tightly combine them through a hot pressing process to form the cord tube required for manufacturing tires. The drum laminating machine has high-precision and high-efficiency production capabilities and adopts an advanced automatic control system. It can accurately control various parameters in the laminating process, such as temperature, pressure and time, so as to ensure the stable and reliable quality of the cord tube.

[0003] The rubber cord is the raw material for manufacturing the cord tube, and its cord angle is usually between 48 and 55 degrees (the cord angle refers to the angle between the cord and the center line of the 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 cord must not be cut; because the cord is the key supporting structure in the tire force system, the intact cord can maintain the strength and toughness of the tire, so that it can withstand the complex forces such as pressure and friction from all directions when the vehicle is driving during subsequent use, and effectively ensure the safety, durability and overall performance of the tire.

[0004] In the process of operation, the existing curtain cutter usually needs the cooperation of the blade to cut the curtain; specifically, the curtain is first conveyed to the top of the blade through the conveyor belt, and the blade is provided with a knife groove. In the process of cutting the curtain, the cutter penetrates into the knife groove from top to bottom, and moves to both sides along the knife groove to cut the curtain. However, the problem with this curtain cutter is that the cutter angle needs to be adjusted according to the angle of the cord when the cutter is working. Whenever the cutter angle changes, the blade must adjust the angle synchronously. Due to this limitation, the blade can only be placed above the conveyor belt, which leads to a certain height difference between the blade and the conveyor belt, and a small gap is formed between the two. The curtain material itself has a certain viscosity. During the process of being conveyed by the conveyor belt, it is easy to adhere to the conveyor belt, and then the front end enters the above-mentioned gap. Once the front end of the curtain enters the gap, it cannot move upward to the top of the blade, and material extrusion occurs; in addition, the curtain itself is thin and soft, which also makes it difficult to climb above the blade. The above problems may cause material extrusion. Once material extrusion occurs, the subsequent cutting process will have to be stopped and the curtain cloth needs to be rearranged before production can continue. In addition, material extrusion not only causes unnecessary squeezing of the curtain cloth, but also causes wrinkles or deformation on the surface of the curtain cloth, affecting its cutting accuracy and flatness, which in turn causes the quality of the finished product to fail to meet the standards and increases the difficulty and cost of subsequent processing.

[0005] Therefore, how to design a cord cutting device that can avoid the material squeezing phenomenon is a technical problem that has not yet been solved in the prior art. Summary of the invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the technical defects in the prior art that the cutting angle needs to be adjusted according to the cord angle, and 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 is sticky and easily adheres to the conveyor belt during transportation, and cannot be moved above the knife plate, which easily causes material extrusion, thereby providing a cord cutting device that can avoid material extrusion.

[0007] To this end, the present invention provides an anti-squeeze curtain fabric cutting device, comprising: The cutting knife comprises a first cutting knife and a second cutting knife, wherein the first cutting knife and the second cutting knife are both hung and mounted on the crossbeam through a driving structure; In the initial state, the first cutting knife and the second cutting knife are in a combined state; Under the drive of the driving structure, the first cutting knife and the second cutting knife can synchronously move along the crossbeam in a direction away from each other and gradually separate, and can also synchronously move along the crossbeam in a direction close to each other until they are restored to a merged state; There are two limit plate cylinders, which are respectively hung and installed on the crossbeam and located on both sides of the combined cutting knife; There are two limit plates, which are fixedly connected to the output shafts of the two limit plate cylinders respectively; A top block cylinder is suitable for fixed installation and is located directly below the combined cutting blade; the driving force of the top block cylinder is greater than the driving force of the limit plate cylinder; A top block, the bottom of which is fixedly mounted on the output shaft of the top block cylinder, and the top of which has two top block protrusions respectively opposite to the limit plates, and a cutting groove is formed between the two top block protrusions; the cutting groove is opposite to the combined cutting knife up and down; In the initial state, the cutters are in a combined state, and the limit plates on both sides extend downward by a certain length following the output shaft of the limit plate cylinder until the bottom surface is flush with the bottom tip of the combined cutters; When cutting the curtain cloth, the top block cylinder drives the top block to move upward, first squeezing and fixing the curtain cloth between the top block protrusion and the limit plate, and then continues to push the limit plate upward, pushing the output shaft of the limit plate cylinder to retract upward, and the limit plate retracts accordingly, and the cutter moves downward relative to the limit plate, piercing the curtain cloth and piercing into the cutting groove; the driving structure drives the first cutter and the second cutter to move synchronously in a direction away from each other to cut the curtain cloth.

[0008] As a preferred solution, the first cutting knife includes a first cutting portion and a puncture portion integrally formed at the bottom of the first cutting portion; the bottom of the puncture portion forms a V-shaped blade, and the top two sides are respectively provided with a first horizontal plane and a second horizontal plane, a first blade is formed on the outer side of the first cutting portion, the first blade extends to the connection between the first cutting portion and the first horizontal plane, and continues to extend a part on the first horizontal plane; an acute angle is formed between the first blade of the first cutting portion and the first horizontal plane; the height of the first horizontal plane is higher than the height of the second horizontal plane; The second cutting knife comprises a second cutting portion and a supporting portion integrally formed at the bottom of the second cutting portion; a third horizontal plane is provided on the top of the supporting portion, and a fourth horizontal plane is provided on the bottom; a second blade is formed on the outer side of the second cutting portion, the second blade extends to the connection between the second cutting portion and the third horizontal plane, and continues to extend a portion on the third horizontal plane; an acute angle is formed between the second blade of the second cutting portion and the third horizontal plane; When the first cutting knife and the second cutting knife are in a combined state, the fourth horizontal plane is in contact with the second horizontal plane, and the third horizontal plane is substantially at the same height as the first horizontal plane.

[0009] As a preferred solution, the two top block protrusions have sharp corners 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; The top block protrusion has two side elevations to form the sharp angle, one of the side elevations is substantially parallel to the moving direction of the curtain, and the other side elevation forms an angle of 20-40° with the moving direction of the curtain.

[0010] As a preferred solution, the driving structure includes: beam; A ball screw is fixedly mounted below the crossbeam, comprising a first screw and a second screw that are coaxially arranged, and the thread arrangement directions of the first screw and the second screw are opposite; A first driving device, fixedly mounted at one end of the crossbeam, having a first driving shaft, wherein the first driving shaft is fixedly connected to one end of the ball screw; A first driving member, a first ball nut is fixedly arranged on the top, and the first ball nut is threadedly connected to the first lead screw; the first cutting knife is fixedly installed on the bottom of the first driving member; The second driving member has a second ball nut fixedly arranged on the top, and the second ball nut is threadedly connected to the second lead screw; the second cutting knife is fixedly installed on the bottom of the second driving member.

[0011] As a preferred solution, the first cutting knife further comprises: A first cutter adjustment member, fixedly mounted on the first driving member, having a first adjustment slide rail; A first cutting blade sliding member is slidably mounted on the first adjusting slide rail; A first cutting blade docking member, fixedly mounted on the first cutting blade sliding member; The first cutter head is fixedly installed below the first cutter docking member.

[0012] As a preferred solution, the second cutting knife further comprises: A second cutter adjustment member, fixedly mounted on the second driving member, having a second adjustment slide rail; A second cutting blade sliding member is slidably mounted on the second adjusting slide rail; A second cutter docking member, fixedly mounted on the second cutter sliding member; The second cutter head is fixedly installed below the second cutter docking piece.

[0013] As a preferred solution, it also includes a docking piece, which is in an inverted U shape and is fixedly installed just above the cutting knife and can rotate synchronously with the crossbeam; The first cutting knife docking piece and the second cutting knife docking piece both have relative guide surfaces and an arc-shaped transition surface arranged in front of the guide surfaces. When the first cutting knife and the second cutting knife are matched and docked, the first cutting knife docking piece and the second cutting knife docking piece both enter the interior of the docking piece through the arc-shaped transition surface, and the two guide surfaces are respectively in contact with the corresponding inner side walls of the docking piece.

[0014] As a preferred solution, it also includes: A first cutter heating device, installed on the first cutter docking member, connected to the first cutter head, and used for heating the first cutter head; The second cutter heating device is installed on the second cutter docking piece and connected to the second cutter head for heating the second cutter head.

[0015] As a preferred solution, it also includes: Mounting beam, suitable for fixed installation; A slewing bearing, the top of which is fixedly connected to the bottom of the mounting beam, and the bottom of which is fixedly connected to the cross beam; a driven gear is fixedly provided on the top of the slewing bearing; The second driving device has a second driving shaft, and a driving gear is fixedly installed on the free end of the second driving shaft; a transmission belt is mounted on the driving gear and the driven gear, so that the second driving device can drive the slewing bearing to rotate, and then drive the crossbeam to rotate relative to the mounting beam.

[0016] As a preferred solution, a second mounting plate is fixedly mounted on the bottom surface of the slewing bearing, and the crossbeam is fixedly mounted on the second mounting plate.

[0017] As a preferred solution, it further comprises two pressing plate cylinders, which are fixedly mounted on the second mounting plate and are respectively located on both sides of the combined cutting blade; There are two pressing plates, which are fixedly connected to the output shafts of the two pressing plate cylinders respectively; In the initial state, the bottom surface of the pressing plate is higher than the curtain fabric, and the curtain fabric is not squeezed and fixed; When cutting the cord, the pressing plate extends downward for a certain length following the output shaft of the pressing plate cylinder, and squeezes and fixes the cord between the pressing plate and the conveyor belt used to transport the cord.

[0018] The technical solution provided by the present invention has the following advantages: The anti-squeeze curtain fabric cutting device of the present invention comprises a cutting knife, a limit plate cylinder, a limit plate, a top block cylinder and a top block; wherein the cutting knife comprises a first cutting knife and a second cutting knife, and the first cutting knife and the second cutting knife are both suspended and installed on a crossbeam through a driving structure; in an initial state, the first cutting knife and the second cutting knife are in a merged state; under the drive of the driving structure, the first cutting knife and the second cutting knife can synchronously move away from each other along the crossbeam and gradually separate, and can also synchronously move towards each other along the crossbeam until the merged state is restored; the limit plate cylinder There are two cylinders, which are respectively suspended and installed on the crossbeam and located on both sides of the combined cutter; there are two limit plates, which are respectively fixedly connected to the output shafts of the two limit plate cylinders; the top block cylinder is suitable for fixed installation and is located directly below the combined cutter; the driving force of the top block cylinder is greater than the driving force of the limit 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 respectively opposite to the limit plates, and a cutting groove is formed in the middle of the two top block protrusions; the cutting groove is opposite to the combined cutter up and down.

[0019] When the anti-squeezing curtain cloth cutting device of the present invention is used, in the initial state, the cutting knives are in a combined state, and the limit plates on both sides follow the output shafts of the limit plate cylinders to extend downward for a certain length until the bottom surface is flush with the bottom blade tip of the combined cutting knives; when cutting the curtain cloth, the top block cylinder drives the top block to move upward, first squeezing and fixing the curtain cloth between the top block protrusion and the limit plate, and then continues to push the limit plate upward, pushing the output shaft of the limit plate cylinder to retract upward, the limit plate follows the retraction, and the cutting knife moves downward relative to the limit plate, piercing the curtain cloth and piercing into the cutting groove; the driving structure drives the first cutting knife and the second cutting knife to move synchronously in a direction away from each other to cut the curtain cloth; when the curtain cloth 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 limit plate cylinder drives the limit plate to return to the initial state. Compared with the prior art, the anti-extrusion curtain cloth cutting device of the present invention eliminates the knife plate structure and is set between two adjacent conveyor belts. During the process of cutting the curtain cloth, the curtain cloth is fixed at the cutting position through the cooperation of the limit plate and the top block, which can solve the technical problem in the prior art that the curtain cloth is prone to extrusion due to the existence of the knife plate, and improves the stability of the equipment operation.

[0020] The anti-squeeze curtain cloth cutting device of the present invention has the following advantages: when the cutter penetrates into the curtain cloth to cut the curtain cloth, the portion without a blade on the first horizontal plane and the portion without a blade on the third horizontal plane can lift the curtain cloth upward, comb the curtain cloth smoothly, avoid wrinkles or stacking that may appear in the curtain cloth during the cutting process, and improve the overall quality of the cutting operation; in conjunction with the pressure plate and the pressure plate cylinder, the cutter can also stretch the curtain cloth when lifting the curtain cloth upward, increase the spacing between adjacent cords, thereby facilitating cutting and avoiding damage to the cords. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the prior art or the specific implementation manner of the present invention, the drawings used in the description of the prior art or the specific implementation manner are briefly introduced below.

[0022] Figure 1 It is a schematic diagram of the overall structure of the anti-squeeze curtain fabric cutting device of the present invention.

[0023] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure of part A.

[0024] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle cutting knife.

[0025] Figure 4 yes Figure 1 Schematic diagram of the structure after the middle top block and top block cylinder are assembled.

[0026] Figure 5 yes Figure 1Schematic diagram of the structure after the middle cutter and drive structure are assembled.

[0027] Figure 6 yes Figure 1 Schematic diagram of the structure of the first cutting knife.

[0028] Figure 7 yes Figure 1 Schematic diagram of the structure of the second cutting knife.

[0029] Figure 8 Yes Figure 1 Schematic diagram of the structure after the mounting beam is removed.

[0030] Fig. 9 yes Figure 1 Schematic diagram of the structure after the middle pressure plate cylinder and the second mounting plate are assembled.

[0031] 1. Cutter; 2. First Cutter; 21. First Cutting Section; 210. First Blade; 22. Piercing Section; 23. First Cutter Adjustment Member; 24. First Adjustment Rail; 25. First Cutter Sliding Member; 26. First Cutter Butt Joint Member; 27. First Cutter Head; 28. First Cutter Heating Device; 29. ​​First Horizontal Plane; 30. Second Horizontal Plane; 3. Second Cutter; 31. Second Cutting Section; 310. Second Blade; 32. Supporting Section; 33. Second Cutter Adjustment Member; 34. Second Adjustment Rail; 35. Second Cutter Sliding Member; 36. Second Cutter Butt Joint Member; 37. Second Cutter Head; 38. Second Cutter Knife heating device; 39, third horizontal plane; 40, fourth horizontal plane; 4, limit plate; 5, limit plate cylinder; 6, top block; 61, top block protrusion; 62, sharp corner; 63, side elevation; 7, cutting groove; 8, top block cylinder; 9, pressure plate; 91, pressure plate cylinder; 10, crossbeam; 11, first drive device; 12, first drive member; 13, second drive member; 14, docking member; 15, guide surface; 16, arc transition surface; 100, mounting beam; 101, slewing bearing; 102, driven gear; 103, second drive device; 104, drive gear; 105, transmission belt; 107, second mounting plate. DETAILED DESCRIPTION

[0032] In order to make those skilled in the art better understand the present solution, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present application.

[0033] It should be noted that the terms "first", "second", etc. in the claims and description of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not limited to those steps or units clearly listed, but may also include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0034] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the present application and its embodiments, and are not intended 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 being used to indicate orientation or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances. In addition, the term "multiple" should mean two or more. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

[0035] The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments. Example

[0036] This embodiment provides a device for cutting a curtain fabric to prevent material extrusion. Figure 1-3As shown, it comprises: a cutting knife 1, a limiting plate cylinder 5, a limiting plate 4, a top block cylinder 8 and a top block 6; wherein the cutting knife 1 comprises a first cutting knife 2 and a second cutting knife 3, and the first cutting knife 2 and the second cutting knife 3 are both suspended and mounted on a cross beam 10 through a driving structure; in an initial state, the first cutting knife 2 and the second cutting knife 3 are in a merged state; under the drive of the driving structure, the first cutting knife 2 and the second cutting knife 3 can synchronously move away from each other along the cross beam 10 and gradually separate, and can also synchronously move towards each other along the cross beam 10 until the merged state is restored; there are two limiting plate cylinders 5, They are respectively suspended and installed on the crossbeam 10, and are located on both sides of the combined cutter 1; there are two limit plates 4, which are fixedly connected to the output shafts of the two limit plate cylinders 5 respectively; the top block cylinder 8 is suitable for fixed installation, and is located directly below the combined cutter 1; the driving force of the top block cylinder 8 is greater than the driving force of the limit plate cylinder 5; the bottom of the top block 6 is fixedly installed on the output shaft of the top block cylinder 8, and the top has two top block protrusions 61 respectively opposite to the limit plates 4, and a cutting groove 7 is formed in the middle of the two top block protrusions 61; the cutting groove 7 is opposite to the combined cutter 1 up and down.

[0037] When the anti-squeeze curtain cloth cutting device of this embodiment is used, in the initial state, the cutting knife 1 is in a merged state, and the limit plates 4 on both sides follow the output shaft of the limit plate cylinder 5 to extend downward for a certain length until the bottom surface is flush with the bottom tip of the merged cutting knife 1; when cutting the curtain cloth, the top block cylinder 8 drives the top block 6 to move upward, first squeezes and fixes the curtain cloth between the top block protrusion 61 and the limit plate 4, and then continues to push the limit plate 4 upward, pushing the output shaft of the limit plate cylinder 5 to retract upward, and the limit plate 4 follows the retraction, and the cutting knife 1 moves downward relative to the limit plate 4, pierces the curtain cloth, 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 a direction away from each other to cut the curtain cloth; when the curtain cloth 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 limit plate cylinder 51 drives the limit plate 5 to return to the initial state. Compared with the prior art, the anti-extrusion curtain cloth cutting device of this embodiment eliminates the knife plate structure and is set between two adjacent conveyor belts. During the process of cutting the curtain cloth, the curtain cloth is fixed at the cutting position through the cooperation of the limit plate 4 and the top block 6, which can solve the technical problem in the prior art that the curtain cloth is prone to extrusion due to the existence of the knife plate, and improves the stability of the equipment operation.

[0038] like Figure 3 , 6As shown in , 7, the first cutting knife 2 includes a first cutting portion 21 and a puncture portion 22 integrally formed at the bottom of the first cutting portion 21; the bottom of the puncture portion 22 forms a V-shaped blade, and the top two sides are respectively provided with a first horizontal plane 29 and a second horizontal plane 30, and the outer side of the first cutting portion 21 is formed with a first blade 210, the first blade 210 extends to the connection between the first cutting portion 21 and the first horizontal plane 29, and continues to extend a part on the first horizontal plane 29; an acute angle is formed between the first blade 210 of the first cutting portion 21 and the first horizontal plane 29; the height of the first horizontal plane 29 is higher than the height of the second horizontal plane 30; the second cutting knife 3 includes a second cutting portion 31 and a V-shaped blade. A supporting portion 32 is formed at the bottom of the second cutting portion 31; a third horizontal plane 39 is provided on the top of the supporting portion 32, and a fourth horizontal plane 40 is provided on the bottom; a second blade 310 is formed on the outer side of the second cutting portion 31, and the second blade 310 extends to the connection between the second cutting portion 31 and the third horizontal plane 39, and continues to extend a part on the third horizontal plane 39; an acute angle is formed between the second blade 310 of the second cutting portion 31 and the third horizontal plane 39; when the first cutting knife 2 and the second cutting knife 3 are in a merged state, the fourth horizontal plane 40 is in contact with the second horizontal plane 30, and the third horizontal plane 39 and the first horizontal plane 29 are basically at the same height.

[0039] When the cutter 1 penetrates the curtain to cut the curtain, the portion without a blade on the first horizontal plane 29 and the portion without a blade on the third horizontal plane 39 can lift the curtain upward, comb the curtain smoothly, avoid wrinkles or stacking that may appear during the cutting process, and improve the overall quality of the cutting operation; in conjunction with the pressing plate 9 and the pressing plate cylinder 91, the cutter 1 can also stretch the curtain when lifting the curtain upward, thereby increasing the spacing between adjacent cords, thereby facilitating cutting and avoiding damage to the cords.

[0040] like Figure 4 As shown, the two top block protrusions 61 have sharp corners 62 facing each other, and the tip of the cutter 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 elevations 63 to form the sharp corners 62, one of the side elevations 63 is substantially parallel to the direction of movement of the cord, and the other side elevation 63 forms an angle of 20-40° with the direction of movement of the cord. When the angle of the cutter 1 needs to be adjusted when replacing cords with different cord angles, the cutting slot 7 can match a variety of cord angles, and the operator does not need to rotate the top block 6 to adjust it to the same angle as the cutter 1.

[0041] like Figure 5As shown, the driving structure includes: a crossbeam 10, a ball screw, a first driving device 11, a first driving member 12 and a second driving member 13; wherein the ball screw is fixedly installed below the crossbeam 10, and includes a first screw and a second screw arranged coaxially, and the thread arrangement directions of the first screw and the second screw are opposite; the first driving device 11 is fixedly installed at one end of the crossbeam 10, and has a first driving shaft, and the first driving shaft is fixedly connected to one end of the ball screw; a first ball nut is fixedly installed on the top of the first driving member 12, and the first ball nut is threadedly connected to the first screw; the first cutting knife 2 is fixedly installed at the bottom of the first driving member 12; a second ball nut is fixedly installed on the top of the second driving member 13, and the second ball nut is threadedly connected to the second screw; the second cutting knife 3 is fixedly installed at the bottom of the second driving member 13. Through the threaded connection between the ball screw and the ball nut, the first cutting knife 2 and the second cutting knife 3 can move in a direction away from each other or move in a direction close to each other at the same time.

[0042] like Figure 6 As shown, the first cutter 2 further includes: a first cutter adjustment member 23, a first cutter slide member 25, a first cutter docking member 26 and a first cutter head 27; wherein the first cutter adjustment member 23 is fixedly mounted on the first driving member 12 and has a first adjustment slide rail 24; the first cutter slide member 25 is slidably mounted on the first adjustment slide rail 24; the first cutter docking member 26 is fixedly mounted on the first cutter slide member 25; and the first cutter head 27 is fixedly mounted below the first cutter docking member 26. In the process of cutting the cord, if the cord angle changes slightly, under the action of the cord, the first cutter head 27 slides correspondingly on the first adjustment slide rail 24 through the first cutter slide member 25, thereby adapting to the direction of the cord to cut the cord without cutting the cord.

[0043] like Figure 7 As shown, the second cutter 3 also includes: a second cutter adjustment member 33, a second cutter sliding member 35, a second cutter docking member 36 and a second cutter head 37; wherein the second cutter adjustment member 33 is fixedly mounted on the second driving member 13 and has a second adjustment slide rail 34; the second cutter sliding member 35 is slidably mounted on the second adjustment slide rail 34; the second cutter docking member 36 is fixedly mounted on the second cutter sliding member 35; and the second cutter head 37 is fixedly mounted below the second cutter docking member 36. In the process of cutting the cord, if the cord angle changes slightly, under the action of the cord, the second cutter head 37 slides correspondingly on the second adjustment slide rail 34 through the second cutter sliding member 35, thereby cutting the cord in accordance with the direction of the cord and not cutting the cord.

[0044] like Figure 5As shown, it also includes a docking member 14, which is an inverted U-shape, fixedly installed just above the cutter 1, and can rotate synchronously with the crossbeam 10; the first cutter docking member 26 and the second cutter docking member 36 both have relative guide surfaces 15, and an arc-shaped transition surface 16 arranged in front of the guide surface 15. When the first cutter 2 and the second cutter 3 are matched and docked, the first cutter docking member 26 and the second cutter docking member 36 both enter the interior of the docking member 14 through the arc-shaped transition surface 16, and the two guide surfaces 15 are respectively in contact with the corresponding inner side walls of the docking member 14. The docking member 14 can help the first cutter 2 and the second cutter 3 fit in place, avoiding the first cutter 2 and the second cutter 3 not being fully fitted, and the curtain fabric cannot be completely cut during the cutting process.

[0045] The device further comprises: 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 docking member 26, connected to the first cutting head 27, and used to heat the first cutting head 27; the second cutting blade heating device 38 is mounted on the second cutting blade docking member 36, connected to the second cutting head 37, and used to heat the second cutting head 37. The heating device can heat the cutting head, so that the cutting head can cut the curtain fabric more easily.

[0046] like Figure 1 , 8 As shown, it also includes: a mounting beam 100, a slewing bearing 101 and a second driving 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 cross beam 10; a driven gear 102 is fixedly provided on the top of the slewing bearing 101; the second driving device 103 has a second driving shaft, and a driving gear 104 is fixedly installed on the free end of the second driving shaft; 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 slewing bearing 101 to rotate, and then drive the cross beam 10 to rotate relative to the mounting beam 100.

[0047] When cutting the curtain cloth, firstly, according to the angle of the cord on the curtain cloth, the second driving device 103 is started, the second driving device 103 drives the slewing bearing 101 to rotate, and then drives the crossbeam 10 to rotate, and the crossbeam 10 drives the cutting knife 1 to rotate until the plane where the cutting knife 1 is located is parallel to the direction of the cord on the curtain cloth; when the curtain cloth 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 slewing bearing 101 to rotate, the slewing bearing 101 drives the crossbeam 10 to rotate, and the crossbeam 10 drives the cutting knife 1 to rotate until the plane where the cutting knife 1 is located is parallel to the direction of the cord on the curtain cloth again, and then the cutting of the curtain cloth is started.

[0048] like Fig. 9 As shown, a second mounting plate 107 is fixedly mounted on the bottom surface of the slewing bearing 101, and the crossbeam 10 is fixedly mounted on the second mounting plate 107; it also includes a pressing plate cylinder 91, and there are two pressing plate cylinders 91, which are fixedly mounted on the second mounting plate 107 and are respectively located on both sides of the combined cutting knife 1; there are two pressing plates 9, which are respectively fixedly connected to the output shafts of the two pressing plate cylinders 91; in the initial state, the bottom surface of the pressing plate 9 is higher than the curtain cloth, and the curtain cloth is not squeezed and fixed; when cutting the curtain cloth, the pressing plate 9 extends downward for a certain length following the output shaft of the pressing plate cylinder 91, and squeezes and fixes the curtain cloth between the pressing plate 9 and the conveyor belt used to transport the curtain cloth. When cutting the curtain cloth, the pressing plate 9 is used to squeeze and fix the curtain cloth to prevent the curtain cloth from being pulled out of position by the cutting knife 1 during the cutting process; when the cutting is completed, the pressing plate 9 is lifted simultaneously by the pressing plate cylinder 91 and the limit plate 4.

[0049] The anti-squeeze curtain fabric cutting device in this embodiment is used as follows: First, according to the angle of the cord on the cord fabric, the second driving device 103 is started, and the second driving device 103 drives the slewing bearing 101 to rotate, and then drives the crossbeam 10 to rotate, and 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 cord fabric; The limit plates 4 on both sides follow the output shaft of the limit plate cylinder 5 to extend downward for a certain length until the bottom surface is flush with the bottom tip of the combined cutter 1; the pressing plates 9 on both sides follow the output shaft of the pressing plate cylinder 91 to extend downward for a certain length until the bottom surface is lower than the bottom tip of the combined cutter 1, squeezing and fixing the curtain fabric between the pressing plate 9 and the transmission belt used to transmit the curtain fabric; The top block cylinder 8 drives the top block 6 to move upward, first squeezing and fixing the curtain cloth between the top block protrusion 61 and the limit plate 4, and then continuing to push the limit plate 4 upward, pushing the output shaft of the limit plate cylinder 5 to retract upward, and the limit plate 4 retracts accordingly, and the cutter 1 moves downward relative to the limit plate 4, piercing the curtain cloth and piercing into the cutting groove 7; The first driving device 11 is started, and the first driving member 12 and the second driving member 13 are driven to move in the direction away from each other through the ball screw, thereby driving the first cutting knife 2 and the second cutting knife 3 to move in the direction away from each other to cut the cord fabric; during the movement, if the angle of the cord changes slightly, under the action of the cord, the first cutter head 27 slides correspondingly on the first adjusting slide rail 24 through the first cutting knife sliding member 25, thereby cutting the cord fabric in accordance with the direction of the cord, and does not cut the cord; similarly, the second cutter head 37 slides correspondingly on the second adjusting slide rail 34 through the second cutting knife sliding member 35, thereby cutting the cord fabric in accordance with the direction of the cord, and does not cut the cord; After the cutting is completed, the first driving device 11 reverses, and drives the first driving member 12 and the second driving member 13 to move toward each other through the ball screw, thereby driving the first cutting knife 2 and the second cutting knife 3 to move toward each other and return to the initial merged state, the top block cylinder 8 retracts to drive the top block 6 back to the initial state, the limit plate cylinder 5 extends downward to drive the limit plate 4 back to the initial state, and the pressure plate cylinder 91 retracts upward to drive the pressure plate 9 back to the initial state; When the first cutter 2 and the second cutter 3 are mated, the first cutter mating piece 26 and the second cutter mating piece 36 both enter the interior of the mating piece 14 through the arc-shaped transition surface 16, and the two guide surfaces 15 are respectively in contact with the corresponding inner side walls of the mating piece 14, so that during the mating process, the first cutter 2 and the second cutter 3 can be pulled back to the initial combined state of mutual contact; When the cutting angle needs to be adjusted when replacing a curtain with a different cord angle, the second driving device 103 is started again, the second driving device 103 drives the slewing bearing 101 to rotate, the slewing bearing 101 drives the crossbeam 10 to rotate, and the crossbeam 10 drives the cutting knife 1 to rotate until the plane where the cutting knife 1 is located is parallel to the cord direction of the curtain again, and then the cutting of the curtain is started.

[0050] Obviously, the above embodiments are merely examples for clear explanation, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from them are still within the protection scope of this innovative technical solution.

Claims

1. A cutting device for preventing material squeeze of cord fabric, characterized in that: include: A cutting knife (1), comprising a first cutting knife (2) and a second cutting knife (3), wherein the first cutting knife (2) and the second cutting knife (3) are both suspended and mounted on a crossbeam (10) via a driving structure; In the initial state, the first cutting knife (2) and the second cutting knife (3) are in a combined state; Under the drive of the driving structure, the first cutting knife (2) and the second cutting knife (3) can synchronously move along the crossbeam (10) in a direction away from each other and gradually separate, and can also synchronously move along the crossbeam (10) in a direction close to each other until they return to a merged state; There are two limit plate cylinders (5), which are respectively suspended and mounted on the crossbeam (10) and located on both sides of the combined cutting blade (1); There are two limit plates (4), which are respectively fixedly connected to the output shafts of the two limit plate cylinders (5); A top block cylinder (8) is suitable for fixed installation and is located directly below the combined cutting blade (1); the driving force of the top block cylinder (8) is greater than the driving force of the limit plate cylinder (5); A top block (6) having a bottom fixedly mounted on the output shaft of the top block cylinder (8) and a top having two top block protrusions (61) respectively opposite to the limit plates (4), and a cutting groove (7) formed between the two top block protrusions (61); the cutting groove (7) is opposite to the combined cutting blade (1) in the upper and lower parts; In the initial state, the cutting blade (1) is in a combined state, and the limit plates (4) on both sides extend downwards by a certain length following the output shaft of the limit plate cylinder (5) until the bottom surface is flush with the bottom blade tip of the combined cutting blade (1); When cutting the curtain fabric, 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 limit plate (4), and then continues to push the limit plate (4) upward, pushing the output shaft of the limit plate cylinder (5) to retract upward, and the limit plate (4) retracts accordingly, and the cutting knife (1) moves downward relative to the limit plate (4), piercing the curtain fabric and piercing into the cutting groove (7); the driving structure drives the first cutting knife (2) and the second cutting knife (3) to move synchronously in a direction away from each other, thereby cutting the curtain fabric.

2. The anti-squeeze fabric cutting device according to claim 1, characterized in that: The first cutting knife (2) comprises 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 plane (29) and a second horizontal plane (30); a first blade (210) is formed on the outer side of the first cutting portion (21), and the first blade (210) extends to the connection between the first cutting portion (21) and the first horizontal plane (29) and continues to extend a part on the first horizontal plane (29); an acute angle is formed between the first blade (210) of the first cutting portion (21) and the first horizontal plane (29); the height of the first horizontal plane (29) is higher than the height of the second horizontal plane (30); The second cutting knife (3) comprises a second cutting portion (31) and a supporting portion (32) integrally formed at the bottom of the second cutting portion (31); a third horizontal plane (39) is provided at the top of the supporting portion (32), and a fourth horizontal plane (40) is provided at the bottom; 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 plane (39), and continues to extend a portion on the third horizontal plane (39); an acute angle is formed between the second blade (310) of the second cutting portion (31) and the third horizontal plane (39); When the first cutting knife (2) and the second cutting knife (3) are in a combined state, the fourth horizontal plane (40) is in contact with the second horizontal plane (30), and the third horizontal plane (39) is substantially at the same height as the first horizontal plane (29).

3. The anti-squeeze fabric cutting device according to claim 1, characterized in that: The two top block protrusions (61) respectively have sharp corners (62) facing each other, and the tip of the cutting knife (1) in an initial state is located directly above the line connecting the two sharp corners (62); The top block protrusion (61) has two side elevations (63) to form the sharp angle (62), one of the side elevations (63) being substantially parallel to the direction in which the curtain moves, and the other side elevation (63) forming an angle of 20-40° with the direction in which the curtain moves.

4. The anti-squeeze curtain fabric cutting device according to claim 1, characterized in that: The driving structure comprises: Beam (10); A ball screw, fixedly mounted below the crossbeam (10), comprising a first screw and a second screw that are coaxially arranged, wherein the threads of the first screw and the second screw are arranged in opposite directions; A first drive device (11) is fixedly mounted on one end of the crossbeam (10) and comprises a first drive shaft, wherein the first drive shaft is fixedly connected to one end of the ball screw; A first driving member (12) having a first ball nut fixedly arranged on the top, the first ball nut being threadedly connected to the first lead screw; and the first cutting knife (2) is fixedly mounted on the bottom of the first driving member (12); The second driving member (13) has a second ball nut fixedly arranged on the top, and the second ball nut is threadedly connected to the second lead screw; the second cutting knife (3) is fixedly mounted on the bottom of the second driving member (13).

5. The anti-squeeze curtain fabric cutting device according to claim 4, characterized in that: The first cutting knife (2) further comprises: A first cutting blade adjustment member (23) is fixedly mounted on the first driving member (12) and has a first adjustment slide rail (24); A first cutting blade sliding member (25) slidably mounted on the first adjusting slide rail (24); A first cutting blade docking member (26) fixedly mounted on the first cutting blade sliding member (25); The first cutter head (27) is fixedly mounted below the first cutter docking member (26).

6. The anti-squeeze curtain fabric cutting device according to claim 4, characterized in that: The second cutting knife (3) further comprises: A second cutter adjustment member (33) is fixedly mounted on the second driving member (13) and has a second adjustment slide rail (34); A second cutting blade sliding member (35) slidably mounted on the second adjusting slide rail (34); A second cutting blade docking member (36) fixedly mounted on the second cutting blade sliding member (35); The second cutter head (37) is fixedly mounted below the second cutter docking member (36).

7. The anti-squeeze fabric cutting device according to claim 5 or 6, characterized in that: It also includes a docking piece (14) which is in an inverted U shape and is fixedly mounted just above the cutting knife (1) and is capable of rotating synchronously with the crossbeam (10); The first cutting blade docking member (26) and the second cutting blade docking member (36) both have opposing guide surfaces (15) and an arc-shaped transition surface (16) arranged in front of the guide surface (15); when the first cutting blade (2) and the second cutting blade (3) are matched and docked, the first cutting blade docking member (26) and the second cutting blade docking member (36) both enter the interior of the docking member (14) through the arc-shaped transition surface (16), and the two guiding surfaces (15) are respectively in contact with corresponding inner side walls of the docking member (14).

8. The anti-squeeze curtain fabric cutting device according to claim 4, characterized in that: Also includes: A mounting beam (100) suitable for fixed installation; A slewing bearing (101), the top of which is fixedly connected to the bottom of the mounting beam (100), and the bottom of which is fixedly connected to the crossbeam (10); a driven gear (102) is fixedly provided on the top of the slewing bearing (101); The second driving device (103) comprises a second driving shaft, and a driving gear (104) is fixedly mounted on the free end of the second driving shaft; 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 slewing bearing (101) to rotate, thereby driving the crossbeam (10) to rotate relative to the mounting beam (100).

9. The anti-squeeze curtain fabric cutting device according to claim 8, characterized in that: A second mounting plate (107) is fixedly mounted on the bottom surface of the slewing bearing (101), and the crossbeam (10) is fixedly mounted on the second mounting plate (107).

10. The anti-squeeze curtain fabric cutting device according to claim 9, characterized in that: It also includes two pressing plate cylinders (91), which are fixedly mounted on the second mounting plate (107) and are respectively located on both sides of the combined cutting blade (1); There are two pressing plates (9), which are respectively fixedly connected to the output shafts of the two pressing plate cylinders (91); In the initial state, the bottom surface of the pressing plate (9) is higher than the curtain fabric, and the curtain fabric is not squeezed and fixed; When cutting the curtain fabric, the pressing plate (9) extends downward by a certain length following the output shaft of the pressing plate cylinder (91), and squeezes and fixes the curtain fabric between the pressing plate (9) and a conveyor belt used to transport the curtain fabric.

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