Shearing device used in textile bed sheet production process

Abstract

The utility model relates to the technical field of textile bed sheet production, in particular to a shearing device used in the textile bed sheet production process, which comprises a base, two cutters are used for shearing a textile bed sheet at the same time, one textile bed sheet can be directly obtained, the shearing efficiency is high, the distance between the two cutters can be adjusted, and the shearing efficiency is high. Before the cutters descend to prepare to cut the textile bed sheet, the extrusion rollers firstly extrude and abut against the textile bed sheet, the advantage of being convenient to operate is achieved, no matter how the distance between the two cutters is adjusted, the corresponding extrusion rollers and the corresponding cutters keep the same distance all the time, and the good tightening effect on the textile bed sheet is achieved all the time; when the cutter completes cutting of the textile bed sheet, the height is increased, and the cut textile bed sheet can be conveniently taken out, when the extrusion rollers and the textile bed sheet are kept in an extrusion state, the textile bed sheet can be taken out from the two sides, and therefore the overall cutting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of textile bed sheet production, in particular to a shearing device used in the textile bed sheet production process. Background Art

[0002] The production process of textile sheets involves related production equipment, such as winding, rolling, shearing, cleaning, and drying, etc.

[0003] The Chinese utility model patent with the authorization announcement number "CN211498248U" is specifically "a shearing device used in the production process of textile sheets", which arranges elastic pressing plates around the cutter to tighten the textile sheets around the cutter to improve the cutting accuracy of the cutter;

[0004] The pressure plates elastically installed around the cutter of the above-mentioned device all adopt a combined structure of springs and corresponding pull rods. When in use, it is necessary to pull each pull rod separately to pull the spring, thereby raising the height of the pressure plate. After the textile sheet is placed on the bottom plate, the pressure plate is squeezed onto the textile sheet through the elastic recovery of the spring. Due to the large number of operating steps, there is a problem of inconvenient operation. In addition, the above-mentioned device adopts a shearing method of a single cutter, and it is impossible to directly obtain a piece of textile sheet, and there is a problem of low cutting efficiency. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides a shearing device used in the production process of textile bed sheets, which can effectively solve the problems raised in the background technology.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The utility model provides a shearing device used in the production process of textile sheets, comprising a base, a shearing assembly comprising two cutters which are lifted and slidably installed above the base and can reciprocate laterally, a pressing and fixing assembly comprising a fixing plate which is lifted and moved laterally synchronously with the corresponding cutters, a mounting seat is elastically installed at the bottom of the fixing plate, and two opposite inner side walls of the mounting seat are rotatably installed with squeezing rollers whose bottoms are exposed to the corresponding mounting seats and are closer to the base than the cutters.

[0008] Furthermore, a top seat is arranged directly above the base, and four supporting cylinders distributed in a rectangular array are installed between the base and the top seat.

[0009] Furthermore, a lifting cylinder is installed at the center of the top end of the top seat, and the output end of the lifting cylinder is connected to a lifting rod extending through and to the bottom of the top seat.

[0010] Furthermore, the shearing assembly comprises a fixing frame fixedly mounted on the bottom end of the lifting rod, two limiting grooves are formed at the bottom of the fixing frame, and a bidirectional screw rod is rotatably mounted between two opposite inner side walls of the fixing frame.

[0011] Furthermore, a motor is fixedly mounted at one end of the fixed frame, the output end of which is fixedly connected to one end of a bidirectional screw rod, the outer rod wall of the bidirectional screw rod is threadedly fitted with two nut seats, the top ends of the nut seats are each provided with a limit strip that is limitedly slidably mounted in the corresponding limit groove, the bottom ends of the nut seats are each provided with a knife seat, and the cutting knives are respectively mounted at the bottom of the corresponding knife seats.

[0012] Furthermore, the extrusion fixing assembly also includes a U-shaped frame between the fixing plate and the knife seat, and a spring is installed between the fixing plate and the corresponding mounting seat below.

[0013] Compared with the known prior art, the technical solution provided by the utility model has the following beneficial effects:

[0014] 1. The utility model is provided with two cutters distributed in parallel. By cutting the textile bed sheet at the same time with the two cutters, a piece of textile bed sheet can be directly obtained, which has the advantage of high cutting efficiency. Moreover, the spacing between the two cutters can be adjusted, and textile bed sheets of different lengths can be cut, thereby improving cutting applicability.

[0015] 2. An elastically mounted squeezing roller is provided on the side away from the two cutters. Before the cutters are lowered to prepare for cutting the textile sheets, the squeezing roller first squeezes and contacts the textile sheets to tighten the two ends of the textile sheets. This has the advantages of fewer operation steps and convenient operation. More specifically, since the squeezing roller is installed on the side corresponding to the cutters, no matter how the spacing between the two cutters is adjusted, the corresponding squeezing roller always maintains the same spacing with the corresponding cutters, and always has a good tightening effect on the textile sheets.

[0016] 3. Since the squeezing roller is rotatably mounted, when the cutter completes cutting of the textile sheet and rises to a height to facilitate removal of the cut textile sheet, the squeezing roller can draw the textile sheet away from both sides while maintaining a squeezing state with the textile sheet, thereby improving the efficiency of withdrawing the textile sheet and thus improving the overall shearing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the shearing component and the extrusion fixing component of the utility model;

[0020] Figure 3 It is a schematic diagram of the limited sliding installation structure of the fixing frame and the nut seat of the utility model;

[0021] Figure 4 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0022] The numbers in the figure represent: 1. base; 11. top seat; 12. supporting cylinder; 2. lifting cylinder; 21. lifting rod; 31. fixing frame; 32. limiting groove; 33. bidirectional screw rod; 34. motor; 35. nut seat; 36. limiting strip; 37. knife seat; 38. cutting knife; 41. U-shaped frame; 42. fixing plate; 43. spring; 44. mounting seat; 45. extrusion roller. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model is further described below in conjunction with embodiments.

[0025] Example 1

[0026] Reference Figure 1-4 , which is the first embodiment of the utility model, discloses a shearing device used in the production process of textile sheets, including a base 1, a shearing assembly including two cutters 38 that are lifted and slidably installed above the base 1 and can reciprocate laterally, an extrusion fixing assembly including a fixing plate 42 that is lifted and moved laterally synchronously with the corresponding cutters 38, a mounting seat 44 is elastically installed at the bottom of the fixing plate 42, and two opposite inner side walls of the mounting seat 44 are rotatably installed with an extrusion roller 45 whose bottom is exposed to the corresponding mounting seat 44 and is closer to the base 1 than the cutters 38. Therefore, when the shearing assembly and the extrusion fixing assembly are synchronously lowered in height, the extrusion roller 45 will first be squeezed and conflicted with the textile sheet to complete the tightening of the two ends of the textile sheet.

[0027] Example 2

[0028] Reference Figure 1-4 , which is the second embodiment of the utility model. This embodiment is different from the first embodiment in that: a top seat 11 is arranged directly above the base 1, and four supporting cylinders 12 distributed in a rectangular array are installed between the base 1 and the top seat 11, so that the textile bed unit is located between the two supporting cylinders 12, which has a limiting effect on the textile bed sheet. A lifting cylinder 2 is installed at the top center of the top seat 11, and the output end of the lifting cylinder 2 is connected to a lifting rod 21 that extends through and extends to the bottom of the top seat 11. The shearing assembly includes a fixing frame 31 fixedly installed at the bottom end of the lifting rod 21, and two limiting grooves 32 are opened at the bottom of the fixing frame 31. A bidirectional screw rod 33 is rotatably installed between two opposite inner side walls of the fixing frame 31. The fixing frame A motor 34 is fixedly installed at one end of 31, and the output end is fixedly connected to one end of the bidirectional screw rod 33. The outer rod wall of the bidirectional screw rod 33 is threadedly fitted with two nut seats 35. The two nut seats 35 are respectively threadedly fitted on the two ends of the bidirectional screw rod 33, so the movement direction is towards or away from each other, but not in the same direction. The top of the nut seat 35 is installed with a limit strip 36 that is limitedly slidably installed in the corresponding limit groove 32, and the bottom end of the nut seat 35 is installed with a knife seat 37, and the cutting knife 38 is respectively installed at the bottom of the corresponding knife seat 37. The extrusion fixing assembly also includes a U-shaped frame 41 between the fixing plate 42 and the knife seat 37, and a spring 43 is installed between the fixing plate 42 and the corresponding mounting seat 44 below.

[0029] The remaining structures are the same as those of Example 1.

[0030] The workflow of this utility model is as follows:

[0031] First, the textile bed sheet to be cut is laid flat on the base 1, and the distance between the two cutters 38 is adjusted according to the specifications of the textile bed sheet to be cut. Specifically, the motor 34 is started to drive the bidirectional screw rod 33 to rotate, thereby driving the two nut seats 35 to move toward or away from each other along the axial direction of the bidirectional screw rod 33, and the limiting strip 36 on the top of the nut seat 35 will slide in the corresponding limiting groove 32, thereby driving the knife seat 37 and the cutter 38 at the bottom to move synchronously. With the adjustment of the distance between the two cutters 38, the extrusion fixing assembly installed on the side away from the two cutters 38 moves synchronously as a whole, but always keeps the same distance with the corresponding cutter 38;

[0032] Secondly, the lifting cylinder 2 is started, and the entire shearing assembly and the squeezing fixed assembly are driven to descend in height through the lifting rod 21. Since the height of the two squeezing rollers 45 is lower than the corresponding cutter 38, the two squeezing rollers 45 first contact the textile bed sheet laid flat on the base 1. When the height continues to descend, the spring 43 above the squeezing roller 45 is forced to start compressing, thereby obtaining elastic restoring force, and feeding back to the corresponding squeezing roller 45, so that the squeezing force between the corresponding squeezing roller 45 and the textile bed sheet is increased, and the squeezing stability is improved. At this time, the cutter 38 starts to contact the textile bed sheet and completes the shearing of the textile bed sheet;

[0033] Finally, after the shearing is completed, since the two squeezing rollers 45 are in rolling contact with the textile sheet, they can be pulled away from both ends of the textile sheet to quickly pull out the two cut parts of the textile sheet, and then the lifting cylinder 2 is started to reset the cutter 38 through the lifting rod 21, which can improve the withdrawal efficiency of the textile sheet and thus improve the overall shearing efficiency.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. These modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A shearing device for use in a textile sheet production process, comprising a base (1), characterized in that: Also includes: A shearing assembly comprises two cutters (38) which are installed on the base (1) in a lifting and sliding manner and can move back and forth laterally; The extrusion fixing assembly comprises a fixing plate (42) which is synchronously lifted and moved laterally with a corresponding cutter (38), a mounting seat (44) being elastically mounted on the bottom of the fixing plate (42), and an extrusion roller (45) which is rotatably mounted on two opposite inner side walls of the mounting seat (44) and has a bottom exposed outside the corresponding mounting seat (44) and is closer to the base (1) than the cutter (38).

2. A shearing device for use in a textile sheet production process according to claim 1, characterized in that: A top seat (11) is arranged directly above the base (1), and four supporting cylinders (12) distributed in a rectangular array are installed between the base (1) and the top seat (11).

3. A shearing device for use in a textile sheet production process according to claim 2, characterized in that: A lifting cylinder (2) is installed at the center of the top end of the top seat (11), and the output end of the lifting cylinder (2) is connected to a lifting rod (21) that extends through and to the bottom of the top seat (11).

4. A shearing device for use in a textile sheet production process according to claim 1, characterized in that: The shearing assembly comprises a fixing frame (31) fixedly mounted on the bottom end of the lifting rod (21), two limiting grooves (32) are formed at the bottom of the fixing frame (31), and a bidirectional screw rod (33) is rotatably mounted between two opposite inner side walls of the fixing frame (31).

5. A shearing device for use in a textile sheet production process according to claim 4, characterized in that: A motor (34) whose output end is fixedly connected to one end of a bidirectional screw rod (33) is fixedly mounted on one end of the fixing frame (31); two nut seats (35) are threadedly mounted on the outer rod wall of the bidirectional screw rod (33); the top ends of the nut seats (35) are each provided with a limit strip (36) which is limitedly slidably mounted in a corresponding limit groove (32); the bottom ends of the nut seats (35) are each provided with a knife seat (37); and the cutters (38) are respectively mounted on the bottoms of the corresponding knife seats (37).

6. A shearing device for use in a textile sheet production process according to claim 5, characterized in that: The extrusion fixing assembly also includes a U-shaped frame (41) between the fixing plate (42) and the knife seat (37), and a spring (43) is installed between the fixing plate (42) and the corresponding mounting seat (44) below.

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