Cotton thread dividing and cutting device

Abstract

The application provides a cotton thread dividing and cutting device, which comprises a bottom plate, vertical supports arranged at both ends of the bottom plate, a thread cutting mechanism arranged on the bottom plate, a cutting assembly arranged in the thread cutting mechanism, a paying-off device and a winding assembly arranged on both sides of the thread cutting mechanism respectively, the paying-off device and the winding assembly being arranged on the upper ends of the vertical supports, a rotatable guide shaft being arranged on each vertical support, the paying-off device and the winding assembly each comprising a rotatable first cantilever shaft, a paying-off reel and a winding reel being sleeved on the first cantilever shaft of the paying-off device and the winding assembly respectively, a metering wheel with an encoder being arranged between the paying-off device and the guide shaft, and the cotton thread being wound from the paying-off reel, passing through the guide shaft of the vertical support at one end of the bottom plate, passing through the cutting assembly, passing through the guide shaft of the vertical support at the other end of the bottom plate and being wound on the winding reel, so that the problem of inaccurate length recording during cotton thread dividing is solved.

Description

Technical Field

[0001] This utility model relates to the field of cotton thread slitting, and in particular to a cotton thread slitting and cutting device. Background Technology

[0002] Cotton yarn is made by combining and twisting carded or combed cotton yarn. The twisted yarn is wound on a cone or reel and then rolled into smaller rolls for further processing after dyeing.

[0003] In existing technology, cotton thread slitting devices mainly consist of an unwinding reel and a winding reel. The winding reel winds up the unwound cotton thread from the unwinding reel, and after reaching a certain length, it is manually cut and replaced with an empty reel or tube. To measure the length of the cotton thread during slitting, a servo motor is typically used for the winding motor. The number of winding turns is calculated based on the pulse count of the motor's built-in encoder, and then converted into the length. However, since the length of a single winding increases with the number of turns, this simple conversion method is not accurate.

[0004] In addition, generally only the winding mechanism is driven by an active motor, while the unwinding reel is driven by a follower. This structure, due to the unstable speed of the unwinding reel, will cause unstable tension of the cotton thread and fluctuations in winding density, which in turn will affect the length recording. Utility Model Content

[0005] This invention provides a cotton thread slitting and cutting device, which solves the problem of inaccurate length recording when slitting cotton thread.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a cotton thread slitting and cutting device, including a base plate, uprights at both ends of the base plate, a thread cutting mechanism on the base plate, a cutting component in the cutting mechanism, an unwinding device and a winding component on both sides of the cutting mechanism, the unwinding device and the winding component are located on the upper end of each upright, each upright is provided with a rotatable guide shaft, the unwinding device and the winding component both include a rotatable first cantilever shaft, the unwinding reel and the winding reel are respectively sleeved on the first cantilever shaft of the unwinding device and the winding component, a meter wheel with an encoder is provided between the unwinding device and the guide shaft, the cotton thread starts from the unwinding reel, passes around the tension shaft and the guide shaft of one end of the upright of the base plate, passes through the cutting component, passes around the guide shaft of the other end of the upright of the base plate and is wound onto the winding reel.

[0007] In the preferred embodiment, the support frame includes two parallel upright plates, each upright plate having a bearing seat at its upper end. A first cantilever shaft is sleeved in the bearing seat, and two spaced-apart first sleeves are fitted on each first cantilever shaft. A pay-off reel or take-up reel is located between the two first sleeves.

[0008] In the preferred embodiment, a tensioning shaft is provided between the winding assembly and the tensioning shaft, and between the unwinding device and the tensioning shaft. Each upright plate is provided with a sloping waist groove, and a sliding sleeve is provided at the end of the tensioning shaft. Each sliding sleeve slides within the sloping waist groove. The cotton thread passes around the tensioning shaft. A displacement sensor facing the tensioning shaft is provided at one end of the sloping waist groove. The tensioning shaft is provided with a hollow cavity, and a counterweight rod is provided inside the tensioning shaft.

[0009] In a preferred embodiment, at least two spaced-apart second sleeves are fitted onto the guide shaft.

[0010] In the preferred embodiment, the upright plate is provided with a vertical waist groove and a mandrel. The mandrel has threaded sections at both ends and locking nuts on the threaded sections. The two ends of the mandrel are inserted into the vertical waist grooves of each upright plate. The locking nuts abut against the side wall of the upright plate. The threaded sections are also provided with limiting end sleeves and bushings. The two ends of the guide shaft are slidably sleeved with each bushing.

[0011] In a preferred embodiment, the tangent mechanism includes a base frame with multiple guide rods, an upper movable plate, and a lower movable plate. The upper and lower movable plates are slidably connected to the guide rods. The base frame also includes a rotatable double-ended lead screw with opposite thread directions at both ends. The two ends of the double-ended lead screw are respectively connected to the middle of the upper and lower movable plates. The tangent assembly includes a lower blade and an upper blade arranged opposite to each other. Both the upper and lower movable plates are provided with blade mounting seats, and the lower and upper blades are respectively inserted into their respective blade mounting seats.

[0012] In the preferred embodiment, a transverse frame is also provided on one side of the take-up reel. The first cantilever shaft of the take-up assembly is located on the transverse frame. A linear servo cylinder and a slide rod are provided on the upright frame. The transverse frame and the slide rod are slidably connected. The linear servo cylinder drives the transverse frame to move.

[0013] The beneficial effects of this utility model are as follows: a separate measuring wheel is added to the cotton thread path. The measuring wheel is equipped with an encoder. The measuring wheel rests against the cotton thread, or the cotton thread is wound around the measuring wheel once. Since the diameter of the single turn does not change during the movement of the cotton thread, the length of the cotton thread can be accurately calculated. Both the unwinding and winding mechanisms are active and equipped with servo motors, which can prevent the cotton thread tension from being unstable due to fluctuations in the speed of the unwinding wheel. A tensioning shaft that can roll along the inclined groove is used to press the cotton thread, reducing the instability of the cotton thread tension caused by the difference in speed between the unwinding and winding wheels. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the unwinding and rewinding mechanism.

[0016] Figure 2 This is a side view of the organizational layout.

[0017] Figure 3 This is a schematic diagram of the unwinding end.

[0018] Figure 4 This is a schematic diagram of the winding end.

[0019] Figure 5 This is a schematic diagram of a tangent mechanism.

[0020] Figure 6 This is a schematic diagram of the end connection structure of the guide shaft.

[0021] Figure 7 This is a schematic diagram of the tensioning shaft end connection structure.

[0022] Figure 8 It is a diagram of the sleeve structure.

[0023] Figure 9 This is a structural diagram of the slicing component.

[0024] In the diagram: Base plate 1; Upright frame 2; Vertical waist groove 201; Sloping waist groove 202; Upright plate 203; Bearing mounting bracket 204; First cantilever shaft 205; Bearing seat 206; First clamping sleeve 207; First drive motor 208; Coupling 209; Unwinding device 3; Guide shaft 4; Second clamping sleeve 401; Mandrel 402; Threaded section 403; Locking nut 404; Limiting end sleeve 405; Bushing 406; Tensioning shaft 5; Sliding sleeve 501; Counterweight rod 502; Limiting lock nut 503; Third sleeve 504; Wire cutting mechanism 6; Base frame 601; Upper movable plate 602; Lower movable plate 603; Guide rod 604; Double-ended lead screw 605; Second drive motor 606; Cutting assembly 7; Blade mounting seat 701; Lower blade 702; Upper blade 703; Top screw 704; Rewinding assembly 8; Unwinding reel 9; Rewinding reel 10; Displacement sensor 11; Meter wheel 12; Encoder 1201; Transverse frame 13; Slide rod 14; Linear servo cylinder 15. Detailed Implementation

[0025] like Figure 1-9 A cotton thread slitting and cutting device includes a base plate 1, with uprights 2 at both ends of the base plate 1. A thread cutting mechanism 6 is also provided on the base plate 1, with a cutting component 7 in the cutting mechanism 6. An unwinding device 3 and a winding component 8 are respectively provided on both sides of the cutting mechanism 6. The unwinding device 3 and the winding component 8 are located on the upper end of each upright 2. Each upright 2 is provided with a rotatable guide shaft 4. Both the unwinding device 3 and the winding component 8 include a rotatable first cantilever shaft 205. A thread unwinding reel 9 and a thread winding reel 10 are respectively sleeved on the first cantilever shaft 205 of the unwinding device 3 and the winding component 8. A meter-counting wheel 12 with an encoder 1201 is provided between the unwinding device 3 and the guide shaft 4. The cotton thread starts from the unwinding reel 9, passes around the tension shaft 5 and the guide shaft 4 of one end of the upright 2 of the base plate 1, passes through the cutting component 7, passes around the guide shaft 4 of the other end of the upright 2 of the base plate 1, and is wound onto the winding reel 10.

[0026] While the unwinding device 3 unwinds, the winding component 8 at the other end winds up, maintaining a matching speed. When the cotton thread passes the guide shaft 4, the guide shafts 4 at both ends make the cotton thread horizontal, which facilitates the cutting component 7 to cut it.

[0027] One end of each first cantilever shaft 205 is connected to the first drive motor 208 via a coupling 209.

[0028] When the cotton thread passes through the meter wheel 12, it drives the meter wheel 12 to rotate. Since the diameter of the meter wheel 12 is known, the encoder 1201 records the number of rotations of the meter wheel 12 to convert it into length.

[0029] In the preferred embodiment, the support frame 2 includes two parallel upright plates 203, each upright plate 203 is provided with a bearing seat 206 at its upper end, a first cantilever shaft 205 is sleeved in the bearing seat 206, and each first cantilever shaft 205 is fitted with two spaced first sleeves 207, and a pay-off reel 9 or a take-up reel 10 is provided between the two first sleeves 207.

[0030] The side wall of the upright plate 203 is provided with a bearing mounting bracket 204, and the bearing seat 206 is mounted on the bearing mounting bracket 204.

[0031] The first sleeve 207 is provided with a rubber or silicone pad or a friction coating on the side near the pay-off reel 9 and the take-up reel 10. The first sleeve 207 clamps the pay-off reel 9 and the take-up reel 10 while holding the first cantilever shaft 205, so that the pay-off reel 9 and the take-up reel 10 rotate synchronously with the first cantilever shaft 205. At the same time, the first sleeve 207 can limit the displacement of the pay-off reel 9 and the take-up reel 10 on both sides and prevent them from moving along the shaft.

[0032] Two sets of pay-off reels 9 or take-up reels 10 can be installed on the upright frame 2 at the same time. There is a gap between the two first cantilever shafts 205 of the same upright frame 2. When the first sleeve 207 is loosened, the first sleeve 207 can slide down from one end of the first cantilever shaft 205. Then the pay-off reel 9 or take-up reel 10 can be removed. The cotton thread reel is easy to disassemble and assemble.

[0033] The sleeve has a ring-shaped structure with a notch on one side. By tightening the notch with bolts, the sleeve can hold the mating shaft tightly.

[0034] In the preferred embodiment, tensioning shafts 5 are provided between the winding assembly 8 and the tensioning shaft 5, and between the unwinding device 3 and the tensioning shaft 5. Each upright plate 203 is provided with a sloping groove 202. A sliding sleeve 501 is provided at the end of the tensioning shaft 5. Each sliding sleeve 501 slides within the sloping groove 202. The cotton thread passes around the tensioning shaft 5. A displacement sensor 11 facing the tensioning shaft 5 is provided at one end of the sloping groove 202. The tensioning shaft 5 is provided with a hollow cavity, and a counterweight rod 502 is provided inside the tensioning shaft 5.

[0035] The inclined groove 202 has a certain inclination angle, so under normal conditions, the tensioning shaft 5 will slide down along the inclined groove 202 to tension the cotton thread passing through. If the speeds of the unwinding device 3 and the winding assembly 8 are not matched, the tensioning shaft 5 will adaptively slide up or down under the action of gravity to keep the cotton thread always in a taut state.

[0036] The displacement sensor 11 can be a laser displacement sensor. If the displacement sensor 11 detects a change in the position of the tension shaft 5 and provides feedback, the unwinding device 3 and the winding assembly 8 will readjust their speeds to match.

[0037] A support frame with a sloping waist groove 202 is also provided in the middle of both ends of the base plate 1 for installing the other end of the tensioning shaft 5.

[0038] The weight of counterweight 502 is determined based on the initial tension required by the cotton thread, and counterweight 502 can be removed and replaced.

[0039] The tensioning shaft 5 has a thinner screw end that can be fitted with a limiting lock nut 503. The third sleeve 504 on the inner side limits the axial movement of the tensioning shaft 5, but does not restrict its sliding along the slope groove 202.

[0040] In a preferred embodiment, at least two spaced second sleeves 401 are fitted onto the guide shaft 4.

[0041] The position between the two second sleeves 401 is aligned with the pay-off reel 9 or the take-up reel 10 to prevent the cotton thread from moving too far laterally along the guide shaft 4 when it passes over the guide shaft.

[0042] If there are two sets of oppositely arranged take-up and take-down components, then four second sleeves 401 are arranged.

[0043] In the preferred embodiment, the upright plate 203 is provided with a vertical waist groove 201 and a mandrel 402. The mandrel 402 has threaded sections 403 at both ends and locking nuts 404 on the threaded sections 403. The two ends of the mandrel 402 are inserted into the vertical waist groove 201 of each upright plate 203. The locking nuts 404 abut against the side wall of the upright plate 203. The threaded section 403 is also provided with a limiting end sleeve 405 and a bushing 406 on the limiting end sleeve 405. The two ends of the guide shaft 4 are slidably sleeved with each bushing 406.

[0044] Loosening the locking nut 404 allows the mandrel 402 and guide shaft 4 to be positioned vertically to match the cutting position of the cutting assembly 7.

[0045] In a preferred embodiment, the tangent mechanism 6 includes a base frame 601, which contains multiple guide rods 604. The base frame 601 also contains an upper movable plate 602 and a lower movable plate 603, which are slidably connected to the guide rods 604. The base frame 601 also contains a rotatable double-ended lead screw 605, with the threads at both ends of the double-ended lead screw 605 having opposite directions. The two ends of the double-ended lead screw 605 are respectively connected to the middle of the upper movable plate 602 and the lower movable plate 603. The tangent assembly 7 includes a lower blade 702 and an upper blade 703 arranged opposite to each other. Both the upper movable plate 602 and the lower movable plate 603 are provided with blade mounting seats 701, and the lower blade 702 and the upper blade 703 are respectively inserted into each blade mounting seat 701.

[0046] The blade mounting base 701 has a set screw 704 on the side wall of the insertion hole, which can press the lower blade 702 or the upper blade 703.

[0047] The base frame 601 is also equipped with a second drive motor 606. The base frame 601 drives the double-ended lead screw 605 to rotate, and the upper movable plate 602 and the lower movable plate 603 move closer to each other, so that the lower blade 702 and the upper blade 703 clamp and cut the thread that has passed through. When the double-ended lead screw 605 reverses, the upper movable plate 602 and the lower movable plate 603 separate, allowing for reel changing and rethreading.

[0048] In a preferred embodiment, a transverse frame 13 is also provided on one side of the take-up reel 10. The first cantilever shaft 205 of the take-up assembly 8 is provided on the transverse frame 13. A linear servo cylinder 15 and a slide rod 14 are provided on the upright frame 2. The transverse frame 13 and the slide rod 14 are slidably connected. The linear servo cylinder 15 drives the transverse frame 13 to move.

[0049] During winding, the linear servo electric cylinder 15 drives the transverse frame 13 to move laterally back and forth, arranging the cotton thread so that each layer of cotton thread is evenly arranged.

[0050] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A cotton thread slitting and cutting device, characterized in that: Includes a base plate (1), with uprights (2) at both ends of the base plate (1), and a tangent mechanism (6) on the base plate (1). The tangent mechanism (6) includes a cutting component (7), and an unwinding device (3) and a winding component (8) are respectively provided on both sides of the tangent mechanism (6). The unwinding device (3) and the winding component (8) are located on the upper end of each upright (2), and each upright (2) is provided with a rotatable guide shaft (4). Both the unwinding device (3) and the winding component (8) include a rotatable first cantilever shaft (205). The thread reel (9) and take-up reel (10) are respectively sleeved on the first cantilever shaft (205) of the unwinding device (3) and the take-up assembly (8). A meter wheel (12) with an encoder (1201) is provided between the unwinding device (3) and the guide shaft (4). The cotton thread starts from the unwinding reel (9), passes around the tension shaft (5) and the guide shaft (4) of the stand (2) at one end of the base plate (1), passes through the cutting assembly (7), passes around the guide shaft (4) of the stand (2) at the other end of the base plate (1), and is wound onto the take-up reel (10).

2. The cotton thread slitting and cutting device according to claim 1, characterized in that: The support frame (2) includes two parallel upright plates (203), each upright plate (203) has a bearing seat (206) at its upper end, a first cantilever shaft (205) is sleeved in the bearing seat (206), and each first cantilever shaft (205) is sleeved with two spaced first sleeves (207), and a wire feeding reel (9) or a wire taking reel (10) is located between the two first sleeves (207).

3. The cotton thread slitting and cutting device according to claim 2, characterized in that: Tensioning shafts (5) are provided between the winding assembly (8) and the tensioning shaft (5) and between the unwinding device (3) and the tensioning shaft (5). Each upright plate (203) is provided with a sloping waist groove (202). A sliding sleeve (501) is provided at the end of the tensioning shaft (5). Each sliding sleeve (501) slides in each sloping waist groove (202). The cotton thread passes around the tensioning shaft (5). A displacement sensor (11) facing the tensioning shaft (5) is provided at one end of the sloping waist groove (202). The tensioning shaft (5) is provided with a hollow cavity. A counterweight rod (502) is provided inside the tensioning shaft (5).

4. The cotton thread slitting and cutting device according to claim 2, characterized in that: At least two spaced second sleeves (401) are fitted on the guide shaft (4).

5. The cotton thread slitting and cutting device according to claim 4, characterized in that: The upright plate (203) is provided with a vertical waist groove (201) and a spindle (402). The two ends of the spindle (402) are provided with threaded sections (403). The threaded sections (403) are provided with locking nuts (404). The two ends of the spindle (402) are inserted into the vertical waist groove (201) of each upright plate (203). The locking nuts (404) abut against the side wall of the upright plate (203). The threaded sections (403) are also provided with limiting end sleeves (405). The limiting end sleeves (405) are provided with bushings (406). The two ends of the guide shaft (4) are respectively slidably sleeved with each bushing (406).

6. The cotton thread slitting and cutting device according to claim 1, characterized in that: The tangent mechanism (6) includes a base frame (601), which is provided with multiple guide rods (604). The base frame (601) is also provided with an upper movable plate (602) and a lower movable plate (603). The upper movable plate (602) and the lower movable plate (603) are slidably connected to the guide rods (604). The base frame (601) is also provided with a rotatable double-ended screw (605). The threads at both ends of the double-ended screw (605) are opposite in direction. The two ends of the double-ended screw (605) are respectively connected to the middle of the upper movable plate (602) and the lower movable plate (603). The tangent assembly (7) includes a lower blade (702) and an upper blade (703) arranged opposite to each other. Both the upper movable plate (602) and the lower movable plate (603) are provided with blade mounting seats (701). The lower blade (702) and the upper blade (703) are respectively inserted into each blade mounting seat (701).

7. The cotton thread slitting and cutting device according to claim 1, characterized in that: A transverse frame (13) is also provided on one side of the take-up reel (10). The first cantilever shaft (205) of the take-up assembly (8) is located on the transverse frame (13). A linear servo cylinder (15) and a slide rod (14) are provided on the upright frame (2). The transverse frame (13) and the slide rod (14) are slidably connected. The linear servo cylinder (15) drives the transverse frame (13) to move.

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