Slitting device for warp knitting machine

Abstract

The utility model discloses a cutting device for a warp knitting machine, which relates to the technical field of warp knitting machines and comprises two side plates, a winding roller, a conveying roller, a compression roller and a winding roller, the winding roller is arranged between the two side plates, the winding roller is coupled close to the top end, the conveying roller and the compression roller are coupled far away from one side of the winding roller, and the winding roller is coupled close to the lower end. A transverse frame is arranged between the winding roller and the pressing roller, an adjusting groove is formed in one side of the transverse frame, a transverse adjusting mechanism is arranged in the adjusting groove, a sleeve plate which is connected with the transverse adjusting mechanism and arranged in a U shape is arranged outside the transverse frame, a shell is arranged on one side of the sleeve plate, a cutter is arranged on the shell, and the cutter extends into an inner cavity of the shell and is connected with a reciprocating lifting mechanism. By means of the reciprocating visual angle mechanism, continuous linear reciprocating motion of the cutter can be achieved, when the cutter makes contact with the warp knitting fabric and needs to be cut open, the warp knitting fabric can be cut more smoothly, stagnation generated during cutting is avoided, and the cutting face is smoother.

Description

Technical Field

[0001] The utility model relates to the technical field of warp knitting machines, in particular to a slitting device for a warp knitting machine. Background Art

[0002] A warp knitting machine is a machine used for knitting various knitted fabrics. It forms knitted fabrics by simultaneously looping a group or multiple groups of parallel yarns onto all working needles of the machine in the warp direction. This method is called warp knitting, and the formed fabric is called warp knitted fabric. Warp knitting machines are widely used in the textile industry and can produce fabrics with different characteristics, such as mesh fabrics, lace, sportswear, etc.

[0003] During the production process, according to customer requirements or subsequent processing requirements, the warp knitted fabric produced by the warp knitting machine needs to be cut into a specific width to ensure that the final product meets the specification requirements. This slitting step is usually completed on the warp knitting machine. In the prior art, for example, Chinese Utility Model Patent CN218711299U discloses a slitting device for a warp knitting machine. This device uses a cutter for slitting. The cut part of the warp knitted fabric is still a soft fabric and will not scratch the warp knitted fabric, making it convenient and fast to use.

[0004] However, although the slitting device in the above-mentioned comparative document solves the problem of slitting warp knitted fabrics to a certain extent, there are still some deficiencies. For example, when the cutter in a static state encounters a relatively thick or tight fabric, the cutter may get stuck, resulting in unsmooth cutting and affecting the flatness of the cut surface.

[0005] In view of this, it is necessary to propose a new technical solution to solve the above problems. Summary of the Utility Model

[0006] The utility model aims to provide a technical solution that can solve the above problems to overcome the above deficiencies.

[0007] To achieve the above object, the utility model provides the following technical solution: A slitting device for a warp knitting machine, including two side plates. Between the two side plates, there are provided a winding roller pivotally connected near the top, a conveying roller pivotally connected on the side away from the winding roller, a pressing roller, and a winding roller pivotally connected near the lower end position. A cross frame is provided between the winding roller and the pressing roller. An adjustment groove is opened on one side of the cross frame, and a horizontal adjustment mechanism is arranged in the adjustment groove. An outer side of the cross frame is provided with a sleeve plate arranged in a "C" shape and connected to the horizontal adjustment mechanism. A housing is provided on one side of the sleeve plate, and a cutter is provided on the housing. The cutter extends into the inner cavity of the housing and is connected to a reciprocating lifting mechanism;

[0008] The reciprocating lifting mechanism includes a motor installed on one side of the shell, one end of the motor is drivingly connected to a rotating shaft extending into the inner cavity of the shell, the inner cavity of the shell is provided with a wheel plate axially connected to the rotating shaft, an eccentric portion is formed on the wheel plate, a connecting rod is axially connected to the eccentric portion, a connecting portion is provided at the lower end of the cutter, one end of the connecting rod away from the eccentric portion is axially connected to the connecting portion, and a directional movable mechanism is provided between the cutter and the inner cavity of the shell.

[0009] As a further solution of the utility model: the directional movable mechanism includes a base plate connected to the cutter inside the shell, and the base plate can drive the cutter to move up and down in the inner cavity of the shell. The inner cavity of the shell is provided with fixed blocks at the four corners of the lower end of the base plate, and the four fixed blocks are provided with directional sliding holes. The four corners of the lower end of the base plate are connected with directional sliding rods that penetrate the directional sliding holes. The directional sliding rods penetrate the directional sliding holes and are connected to the limiting blocks.

[0010] As a further solution of the utility model: the lateral adjustment mechanism includes a servo motor installed on the outside of the side plate, a screw rod is arranged on one side of the servo motor, the screw rod passes through the side plate and extends into the adjustment slot, an adjustment block is arranged inside the adjustment slot, the adjustment block has a threaded hole threadedly connected to the screw rod, a mounting plate is arranged at the adjustment block facing the opening of the adjustment slot, and the mounting plate is fixedly connected to the sleeve plate.

[0011] As a further solution of the utility model: the cutter includes a mounting frame at the lower end, the cutter is inserted into the mounting frame, the adapter is arranged at the lower end of the mounting frame, and the upper end surface of the shell is provided with a notch for displacement of the mounting frame.

[0012] As a further solution of the utility model: the fixing block and the bottom plate are provided with booster springs, and the booster springs are sleeved on the outside of the directional slide rod.

[0013] As a further solution of the utility model: the four corners of the mounting plate and the sleeve plate are respectively provided with a first hanging ear and a second hanging ear, and the first hanging ear and the second hanging ear are fixedly connected by bolts.

[0014] Compared with the prior art, the beneficial effects of the technical solution are as follows: the motor drives the rotating shaft to rotate the wheel disc in the inner cavity of the shell. When the wheel disc rotates, the eccentric part deviates from the center of the wheel disc, so that the eccentric part produces eccentric motion. Since the two ends of the connecting rod are axially connected to the eccentric part and the adapter part respectively, the connecting rod drives the adapter part to convert the eccentric motion into linear reciprocating motion, and finally realizes the linear reciprocating motion of the cutter. By utilizing the continuous reciprocating motion of the cutter, when the cutter contacts the warp knitted fabric and needs to be cut, the warp knitted fabric can be cut more smoothly, avoiding stagnation during cutting, and making the cut surface smoother.

[0015] When the reciprocating lifting mechanism drives the cutter to perform linear reciprocating motion, the bottom plate at the lower end of the cutter moves in the inner cavity of the shell following the cutter, and at the same time, the four directional slide bars at the lower end of the bottom plate move in the directional slide hole, so that the directional slide bar is restricted by the directional slide hole, and the bottom plate and the cutter always maintain linear motion, thereby enhancing the cutting effect of the cutter. At the same time, when the directional slide bar moves in the directional slide hole, a limit block is added at the bottom end of the directional slide bar to prevent the directional slide bar from detaching from the directional slide hole.

[0016] The servo motor drives the lead screw to rotate in the adjusting slot, so that the adjusting block inside the adjusting slot moves horizontally. The adjusting block is connected to the sleeve plate through the mounting plate, and the sleeve plate is arranged in a "匚"-shaped sleeve cross frame, thereby achieving the effect of driving the shell and the cutter to move horizontally, thereby adjusting the horizontal position of the cutter to meet the needs of cutting at different positions, and there is no need to manually adjust the position of the cutter, which is convenient and quick.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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 description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is another perspective structural schematic diagram of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the lateral adjustment mechanism of the utility model;

[0023] Figure 5 It is a schematic diagram of the reciprocating lifting mechanism of the utility model;

[0024] Figure 6 It is a schematic diagram of the directional activity mechanism of the utility model;

[0025] Figure 7 It is a schematic diagram of the internal structure of the shell of the utility model;

[0026] The corresponding reference numerals in the accompanying drawings are described as follows:

[0027] 1. Side plate; 11. Winding roller; 12. Conveying roller; 13. Pressing roller; 14. Winding roller; 2. Horizontal frame; 21. Adjusting slot; 3. Horizontal adjusting mechanism; 31. Servo motor; 32. Screw rod; 33. Adjusting block; 34. Mounting plate; 35. First hanging ear; 4. Sleeve plate; 41. Shell; 42. Second hanging ear; 5. Cutter; 51. Mounting frame; 6. Reciprocating lifting mechanism; 61. Motor; 62. Rotating shaft; 63. Wheel; 64. Eccentric part; 65. Connecting rod; 66. Adapter; 7. Directional movable mechanism; 71. Bottom plate; 72. Fixed block; 73. Directional sliding hole; 74. Directional sliding rod; 75. Limiting block; 76. Power assist spring; 8. Bolt. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0029] See also Figure 1-7 A slitting device for a warp knitting machine comprises two side plates 1, between which are arranged a winding roller 11 axially connected near the top end, a conveying roller 12 and a pressing roller 13 axially connected at a side away from the winding roller 11, and a winding roller 14 axially connected near the lower end. When in use, the warp knitted fabric passes through the winding roller 11, the conveying roller 12 and the pressing roller 13, and then is wound up by the winding roller 14.

[0030] A horizontal frame 2 is arranged between the winding roller 11 and the pressing roller 13, an adjustment slot 21 is provided on one side of the horizontal frame 2, a horizontal adjustment mechanism 3 is arranged in the adjustment slot 21, a sleeve plate 4 connected to the horizontal adjustment mechanism 3 and arranged in a "匚" shape is arranged outside the horizontal frame 2, a shell 41 is arranged on one side of the sleeve plate 4, a cutter 5 is arranged on the shell 41, the cutter 5 extends to the inner cavity of the shell 41 and is connected to a reciprocating lifting mechanism 6, and the cutter 5 on the shell 41 is used to cut the warp knitted fabric during the winding process, and the cutter 5 performs a reciprocating lifting motion through the reciprocating lifting mechanism 6 in the inner cavity of the shell 41, so that the cutter 5 cuts more smoothly;

[0031] Preferably, the reciprocating lifting mechanism 6 includes a motor 61 installed on one side of the shell 41, one end of the motor 61 is driven and connected to a rotating shaft 62 extending into the inner cavity of the shell 41, the inner cavity of the shell 41 is provided with a wheel 63 axially connected to the rotating shaft 62, an eccentric portion 64 is formed on the wheel 63, a connecting rod 65 is axially connected to the eccentric portion 64, a connecting portion 66 is provided at the lower end of the cutter 5, one end of the connecting rod 65 away from the eccentric portion 64 is axially connected to the connecting portion 66, and a directional movable mechanism 7 is provided between the cutter 5 and the inner cavity of the shell 41.

[0032] Specifically, during slitting, the motor 61 starts and drives the rotating shaft 62 to rotate, and the rotating shaft 62 drives the wheel disc 63 in the inner cavity of the shell 41 to rotate. When the wheel disc 63 rotates, the eccentric portion 64 deviates from the center of the wheel disc 63, so that the eccentric portion 64 produces eccentric motion. Since the two ends of the connecting rod 65 are respectively axially connected to the eccentric portion 64 and the adapter portion 66, the connecting rod 65 is rotatably connected to the eccentric portion 64 and the adapter portion 66, so that the connecting rod 65 drives the adapter portion 66 to convert the eccentric motion into a linear reciprocating motion, and finally realizes the linear reciprocating motion of the cutter 5. At the same time, the directional movable mechanism 7 arranged between the cutter 5 and the inner cavity of the shell 41 is used to reduce the shaking of the cutter during linear motion, so that the linear reciprocating motion effect of the cutter is better, and then the continuous reciprocating motion of the cutter 5 is used, so that when the cutter 5 contacts the warp knitted fabric and needs to be cut, the warp knitted fabric can be cut more smoothly, avoiding stagnation during cutting, and making the cut surface smoother.

[0033] More preferably, the directional movable mechanism 7 includes a base plate 71 connected to the cutter 5 inside the shell 41, and the base plate 71 can drive the cutter 5 to move up and down in the inner cavity of the shell 41. The inner cavity of the shell 41 is located at the four corners of the lower end of the base plate 71, and fixed blocks 72 are fixed thereon. Directional sliding holes 73 are opened on the four fixed blocks 72. Directional sliding rods 74 passing through the directional sliding holes 73 are connected to the four corners of the lower end of the base plate 71. The directional sliding rods 74 pass through the directional sliding holes 73 and are connected to the limiting blocks 75 after passing through the directional sliding holes 73.

[0034] Specifically, during the process of the reciprocating lifting mechanism 6 driving the cutter 5 to perform a linear reciprocating motion, the bottom plate 71 at the lower end of the cutter 5 follows the cutter 5 to move in the inner cavity of the shell 41, and at the same time, the four directional slide bars 74 at the lower end of the bottom plate 71 move in the directional slide hole 73, so that the directional slide bar 74 is restricted by the directional slide hole 73, and the bottom plate 71 and the cutter 5 always maintain a linear motion, thereby enhancing the cutting effect of the cutter 5. At the same time, when the directional slide bar 74 moves in the directional slide hole 73, a limit block 75 is added to the bottom end of the directional slide bar 74 to prevent the directional slide bar 74 from being separated from the directional slide hole 73, and the limit block 75 and the directional slide bar 74 can be detachably connected by hinged, screwed, clamped or other detachable connection methods, which are not limited here;

[0035] The fixing block 72 and the bottom plate 71 are provided with a booster spring 76, which is sleeved on the outside of the directional slide bar 74. When the bottom plate 71 and the directional slide bar 74 are displaced to the lowest end (i.e., the lowest end when the reciprocating lifting mechanism 6 drives the cutter 5 to move back and forth), the bottom plate 71 will squeeze the booster spring 76, and when the reciprocating lifting mechanism 6 drives the cutter 5 to move from bottom to top, the squeezed booster spring 76 applies an upward thrust to the bottom plate 71 through its elastic recovery, thereby increasing the force of the bottom plate 71 and the cutter 5 during the limited movement, and the lifting and lowering displacement of the cutter 5 is smoother.

[0036] Among them, the cutter 5 includes a mounting frame 51 at the lower end, the cutter 5 is inserted into the mounting frame 51, the adapter 66 is arranged at the lower end of the mounting frame 51, and the upper end surface of the shell 41 is provided with a slot for the displacement of the mounting frame 51. The cutter 5 is inserted into the interior thereof through the mounting frame 51, which is convenient for replacing the cutter 5 that has been used for a long time and has a high degree of wear.

[0037] It should be noted that in the present invention, by designing a smaller wheel 63, the up and down movement range of the cutter 5 can be made smaller, thereby avoiding the cutting effect of the cutter 5 being affected by long-distance movement. At the same time, by installing a cutter 5 of an appropriate size, that is, when the cutter 5 moves down to the lowest point, the cutter 5 can still cut the warp knitted fabric being rolled up, thereby avoiding the situation where some areas of the warp knitted fabric cannot be cut during the up and down reciprocating movement of the cutter 5.

[0038] Furthermore, the lateral adjustment mechanism 3 includes a servo motor 31 installed on the outside of the side plate 1, a screw rod 32 is arranged on one side of the servo motor 31, the screw rod 32 passes through the side plate 1 and extends to the inside of the adjustment groove 21, an adjustment block 33 is arranged inside the adjustment groove 21, the adjustment block 33 has a threaded hole threadedly connected to the screw rod 32, and a mounting plate 34 is arranged at the opening of the adjustment block 33 toward the adjustment groove 21, and the mounting plate 34 is fixedly connected to the sleeve plate 4.

[0039] Specifically, when in use, the servo motor 31 is started, and the servo motor 31 drives the screw rod 32 to rotate in the adjustment slot 21, so that the adjustment block 33 inside the adjustment slot 21 is moved laterally, and the adjustment block 33 is connected to the sleeve plate 4 through the mounting plate 34, and the sleeve plate 4 is arranged in a "匚" shape on the sleeve cross frame 2, thereby achieving the effect of driving the shell 41 and the cutter 5 to move laterally, so as to adjust the lateral position of the cutter 5 to meet the needs of cutting at different positions, and there is no need to manually adjust the position of the cutter 5, which is convenient and quick.

[0040] Furthermore, first hanging ears 35 and second hanging ears 42 are respectively arranged at the four corners of the mounting plate 34 and the sleeve plate 4, and the first hanging ears 35 and the second hanging ears 42 are fixedly connected by bolts 8; by unscrewing and removing the bolts 8 between the first hanging ears 35 and the second hanging ears 42, the effects of removing the sleeve plate 4, the housing 41 and the cutting tool 5 are achieved.

[0041] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A slitting device for a warp knitting machine, comprising two side plates (1), a winding roller (11) axially connected near the top end, a conveying roller (12) and a pressure roller (13) axially connected at a side away from the winding roller (11), and a winding roller (14) axially connected near the bottom end are arranged between the two side plates (1), characterized in that: A cross-frame (2) is arranged between the winding roller (11) and the pressing roller (13). An adjustment groove (21) is formed on one side of the cross-frame (2). A transverse adjustment mechanism (3) is arranged in the adjustment groove (21). An "L"-shaped sleeve plate (4) connected to the transverse adjustment mechanism (3) is arranged outside the cross-frame (2). A housing (41) is arranged on one side of the sleeve plate (4). A cutting knife (5) is arranged on the housing (41). The cutting knife (5) extends into the inner cavity of the housing (41) and is connected with a reciprocating lifting mechanism (6). The reciprocating lifting mechanism (6) includes a motor (61) installed on one side of the housing (41). One end of the motor (61) is drivingly connected with a rotating shaft (62) extending into the inner cavity of the housing (41). A disc (63) axially connected to the rotating shaft (62) is arranged in the inner cavity of the housing (41). An eccentric part (64) is formed on the disc (63). A connecting rod (65) is axially connected to the eccentric part (64). A transfer part (66) is arranged at the lower end of the cutting knife (5). The end of the connecting rod (65) away from the eccentric part (64) is axially connected to the transfer part (66). A directional movement mechanism (7) is arranged between the cutting knife (5) and the inner cavity of the housing (41).

2. The slitting device for warp knitting machine according to claim 1, characterized in that: The directional movement mechanism (7) includes a bottom plate (71) connected to the cutting knife (5) inside the housing (41). The bottom plate (71) can drive the cutting knife (5) to move up and down in the inner cavity of the housing (41). Fixed blocks (72) are fixedly arranged at the four corners of the lower end of the bottom plate (71) in the inner cavity of the housing (41). Directional sliding holes (73) are formed in the four fixed blocks (72). Directional sliding rods (74) penetrating through the directional sliding holes (73) are connected to the four corners of the lower end of the bottom plate (71). A limiting block (75) is connected after the directional sliding rod (74) penetrates through the directional sliding hole (73).

3. The slitting device for a warp knitting machine according to claim 2, characterized in that: The transverse adjustment mechanism (3) includes a servo motor (31) installed outside the side plate (1). A lead screw (32) is arranged on one side of the servo motor (31). The lead screw (32) penetrates through the side plate (1) and extends into the adjustment groove (21). An adjustment block (33) is arranged inside the adjustment groove (21). A threaded hole threadedly connected to the lead screw (32) is formed in the adjustment block (33). An installation plate (34) is arranged on the adjustment block (33) facing the opening of the adjustment groove (21). The installation plate (34) is fixedly connected to the sleeve plate (4).

4. The slitting device for a warp knitting machine according to claim 2, characterized in that: The cutting knife (5) includes an installation frame (51) at the lower end. The cutting knife (5) is inserted into the installation frame (51). The transfer part (66) is arranged at the lower end of the installation frame (51). A notch for the displacement of the installation frame (51) is formed on the upper end surface of the housing (41).

5. The slitting device for warp knitting machine according to claim 2, characterized in that: A boosting spring (76) is arranged between the fixed block (72) and the bottom plate (71). The boosting spring (76) is sleeved outside the directional sliding rod (74).

6. The slitting device for a warp knitting machine according to claim 3, characterized in that: First hanging ears (35) and second hanging ears (42) are respectively arranged at the four corners of the installation plate (34) and the sleeve plate (4). The first hanging ear (35) and the second hanging ear (42) are fixedly connected by a bolt (8).

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