A conveying mechanism of a flat weft knitting machine

Abstract

The utility model relates to the field of textile equipment, and discloses a conveying mechanism of a flat weft knitting machine, which is used to convey cloth to a sewing machine, and has a built-in numerical control system, including a processing table, a frame is provided directly above the processing table, a unwinding roller group is provided on one side of the processing table, and a cutting knife is provided on the end of the unwinding roller group close to the processing table, and a cloth pressing assembly facing the processing table is provided at the bottom of the frame, and the cloth pressing assembly is used to flatten the cloth, and a cloth pulling assembly is slidably provided on the frame, and the unwinding roller group is arranged opposite to the cloth pulling assembly. The unwinding roller group unwinds the roll cloth onto the processing table, and the cloth pulling assembly pulls the end of the cloth to make the cloth flat on the processing table, and the cloth pressing assembly first flattens and smoothes the cloth on the processing table, and the cutting knife then cuts the cloth. The present application has the effect of reducing product size errors and improving cutting accuracy.

Description

Technical Field

[0001] The utility model relates to the field of textile equipment, in particular to a conveying mechanism of a flat weft knitting machine. Background Art

[0002] Flat weft knitting machines are a type of automatic knitting equipment commonly used in the textile field. Towels, blankets, etc. used in daily life are all woven from wool and yarn using warp knitting machines and weft knitting machines.

[0003] The existing weft knitting machine can refer to the Chinese patent document with the announcement number CN214193682U. The above patent document discloses a fully automatic square scarf weft knitting machine, which includes a cloth feeding mechanism, a cloth pulling mechanism, a cloth cutting mechanism and a sewing machine. The cloth feeding mechanism uses a roller group to transport the cloth to the processing table, the cloth pulling mechanism pulls the fixed length of cloth and then cuts it by the cloth cutting mechanism, and finally the sewing machine locks the edge to obtain a single square scarf.

[0004] However, in the process of cooperation between the cloth feeding mechanism and the cloth pulling mechanism, in order to ensure smooth cloth pulling, the cloth feeding mechanism should not generate resistance with the cloth pulling mechanism, which will cause the cloth to be unevenly spread on the surface of the processing table during cutting, which may easily cause an increase in product size error. Utility Model Content

[0005] In order to reduce product size errors and improve cutting accuracy, the present application provides a conveying mechanism for a flat weft knitting machine.

[0006] The present application provides a conveying mechanism for a flat weft knitting machine, which adopts the following technical solution:

[0007] A conveying mechanism of a flat weft knitting machine, used for conveying cloth to a sewing machine, has a built-in numerical control system, comprises a processing table, a frame is provided directly above the processing table, a unwinding roller group is provided on one side of the processing table, a cutting knife is provided on the end of the unwinding roller group close to the processing table, a cloth pressing assembly facing the processing table is provided at the bottom of the frame, the cloth pressing assembly is used for flattening the cloth, a cloth pulling assembly is slidably provided on the frame, and the unwinding roller group is arranged opposite to the cloth pulling assembly.

[0008] By adopting the above technical solution, a cloth pressing assembly is arranged between the unwinding roller group and the cloth pulling assembly. Under the integrated control of the numerical control system, the cloth pressing assembly can flatten the cloth before the cutter cuts the cloth, thereby reducing the cutting error and making the finished product more regular and beautiful.

[0009] Furthermore, the frame includes a crossbeam, a longitudinal beam and a support frame that are fixedly connected to each other, the bottom of the support frame is fixedly connected to the processing table, the crossbeam and the longitudinal beam are perpendicular to each other and parallel to the processing table, the crossbeam is provided with a first electric slide rail, the longitudinal beam is provided with a second electric slide rail, the cloth pulling assembly is slidably connected to the first electric slide rail, and the cloth pressing assembly is slidably connected to the second electric slide rail.

[0010] By adopting the above technical solution, a horizontal beam and a longitudinal beam parallel to the processing table are set, and a first electric slide rail and a second electric slide rail are set correspondingly. The cloth pressing assembly is slidably connected to the longitudinal beam through the second electric slide rail, so that the cloth pressing assembly can move and transport the cloth on the surface of the processing table after pressing and flattening the cloth, thereby expanding the use function of the cloth pressing assembly, thereby facilitating the delivery of the cut and shaped cloth to the downstream sewing station.

[0011] Furthermore, the cloth pressing assembly includes a third electric slide rail, a telescopic rod and a pair of cloth pressing parts, one end of the telescopic rod is fixedly connected to the center of the third electric slide rail, the end of the telescopic rod away from the third electric slide rail is slidably connected to the second electric slide rail, the third electric slide rail is vertically and slidably connected to the second electric slide rail, each of the two ends of the third electric slide rail is slidably connected to a cloth pressing part, the telescopic rod is extended to make the cloth pressing part press against the processing table, and the two cloth pressing parts slide away from each other to flatten the cloth.

[0012] By adopting the above technical solution, a third electric slide rail is set for the two cloth pressing parts to slide, and in conjunction with the telescopic rod, the two cloth pressing parts slide away from each other from the middle to the outside to flatten the cloth. Compared with sliding in one direction, the cloth pressing time can be shortened, thereby improving efficiency.

[0013] Furthermore, the cloth pressing member is a strip-shaped counterweight block, and the length of the strip-shaped counterweight block matches the width of the cloth.

[0014] By adopting the above technical solution, the cloth pressing piece is set as a strip-shaped counterweight block that matches the width of the cloth. In addition to increasing the effective area, its own weight can also be used to improve the cloth pressing effect and make the cloth smoother.

[0015] Furthermore, the strip-shaped counterweight is connected to an electric heater.

[0016] By adopting the above technical solution, the electric heater can increase the temperature of the strip-shaped counterweight block, thereby playing the role of ironing and shaping the cloth.

[0017] Furthermore, the bar-shaped counterweight is made of metal.

[0018] By adopting the above technical solution, the metal bar counterweight has better thermal conductivity compared with other materials such as plastic and wood.

[0019] Furthermore, the cloth pressing member is a roller.

[0020] By adopting the above technical solution, setting the cloth pressing member as a roller can make the cloth pressing process smoother, reduce the load of the third electric slide rail driving the cloth pressing member to slide, and minimize the damage to the cloth surface caused by the sharp edges of the cloth pressing member.

[0021] Furthermore, a hollow cavity is provided inside the cloth pressing piece, a plurality of air holes connected to the hollow cavity are opened at the bottom of the cloth pressing piece, and the hollow cavity is connected to an external steam generator.

[0022] By adopting the above technical solution, a hollow cavity is set in the cloth pressing assembly, and an air hole is opened at the bottom. The hollow cavity is connected to an external steam generator. During the moving cloth pressing process, steam is sprayed onto the surface of the cloth through the air hole, which can wet the cloth and protect the fabric from burns during ironing.

[0023] Furthermore, the cloth pulling assembly includes a fixedly connected connecting portion and a clamp, one end of the connecting portion away from the clamp is slidably connected to the first electric slide rail, and the clamp is used to fix the cloth.

[0024] By adopting the above technical solution, the connecting part equipped with the clamp is slidably connected to the first electric slide rail, so that the cloth can be pulled along the length direction of the cloth. The fixing effect of the clamp makes the cloth not easy to fall off, which facilitates the cloth to face the cloth pressing assembly and improves the cloth pulling efficiency.

[0025] Furthermore, the clamp includes two electromagnets facing each other, and the electromagnets generate magnetic force when energized to attract and fix each other.

[0026] By adopting the above technical solution, two electromagnets facing each other are set as clamps, and the cloth is fixed by magnetic attraction. The structure is simple, and the cloth can be conveniently fixed or released by controlling the on and off of the circuit.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. By setting a cloth pressing assembly between the unwinding roller group and the cloth pulling assembly, under the integrated control of the CNC system, the cloth pressing assembly can flatten the cloth before the cutter cuts the cloth, thereby reducing the cutting error and making the finished product more regular and beautiful;

[0029] 2. By respectively arranging the first electric slide rail and the second electric slide rail on the crossbeam and the longitudinal beam, the cloth pressing assembly slides along the second electric slide rail, and can drive the cloth to move on the surface of the processing table after pressing and flattening the cloth, so as to transport the cloth to the downstream sewing station, thereby expanding the use function of the cloth pressing assembly;

[0030] 3. By setting a third electric slide rail for the two cloth pressing parts to slide, and cooperating with the telescopic rod, the two cloth pressing parts slide away from each other from the middle to the outside to flatten the cloth. Compared with sliding in one direction, the cloth pressing time can be shortened, thereby improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is the conveying mechanism of the flat weft knitting machine of Example 1 of the present application.

[0032] Figure 2 It is a structural schematic diagram of the cloth pressing assembly in Example 1.

[0033] Figure 3 It is a schematic diagram of the structure of the cloth pressing member in Example 2.

[0034] Figure 4 It is a schematic diagram of the structure of the cloth pressing piece in Example 3.

[0035] Description of reference numerals:

[0036] 10. Cloth; 1. Processing table; 2. Frame; 21. Crossbeam; 211. First electric slide rail; 22. Longitudinal beam; 221. Second electric slide rail; 23. Support frame; 3. Unwinding roller group; 4. Cutter; 5. Cloth pressing assembly; 51. Third electric slide rail; 52. Telescopic rod; 53. Cloth pressing piece; 531. Bar counterweight; 532. Roller; 533. Air hole; 6. Cloth pulling assembly; 61. Connecting part; 62. Clamp; 621. Electromagnet;. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-4 The technical solution of this application is described clearly and completely.

[0038] The embodiment of the present application discloses a conveying mechanism of a flat weft knitting machine.

[0039] Example 1

[0040] Reference Figure 1 A conveying mechanism of a flat weft knitting machine is provided with a built-in numerical control system, including a processing table 1, a frame 2 is provided directly above the processing table 1, a reeling roller group 3 for fixing a cloth 10 is provided on one side of the processing table 1, a cutting knife 4 is provided at one end of the reeling roller group 3 close to the processing table 1, a cloth pressing component 5 facing the processing table 1 is provided at the bottom center of the frame 2, and a cloth pulling component 6 is slidably provided on the frame 2 and arranged opposite to the reeling roller group 3.

[0041] The unwinding roller group 3 unwinds the rolled cloth 10 onto the processing table 1, the cloth pulling assembly 6 pulls the end of the cloth 10 to make the cloth 10 flat on the processing table 1, the cloth pressing assembly 5 first flattens the cloth 10 on the processing table 1, and the cutter 4 then cuts the cloth 10, thereby reducing the size error of the towel product and improving the cutting accuracy.

[0042] Reference Figure 1 The processing table 1 is square, and the frame 2 includes a welded crossbeam 21, a longitudinal beam 22 and a support frame 23. The bottom of the support frame 23 is welded and fixed to the processing table 1, and the crossbeam 21 and the longitudinal beam 22 are perpendicular to each other and parallel to the processing table 1. A first electric slide rail 211 is provided on the crossbeam 21, and a second electric slide rail 221 is provided on the longitudinal beam 22. The cloth pulling assembly 6 is slidably connected to the first electric slide rail 211, and the cloth pressing assembly 5 is slidably connected to the second electric slide rail 221. The sewing station is selected to be set at the end of the longitudinal beam 22 away from the crossbeam 21. After the shearing is completed, the cloth pressing assembly 5 presses against the cloth 10 and slides along the second electric slide rail 221 to directly move the cloth 10 to the sewing station. At the same time, the cloth pulling assembly 6 continues to pull the next section of cloth 10, thereby expanding the use function of the cloth pressing assembly 5.

[0043] Reference Figure 1 The cloth pressing assembly 5 includes a third electric slide 51, a telescopic rod 52 and a pair of cloth pressing members 53. One end of the telescopic rod 52 is fixedly connected to the center of the third electric slide 51. One end of the telescopic rod 52 away from the third electric slide 51 is slidably connected to the second electric slide 221. The third electric slide 51 is vertically and slidably connected to the second electric slide 221. The two ends of the third electric slide 51 are slidably connected to a cloth pressing member 53. The telescopic rod 52 is extended to make the cloth pressing member 53 close to the processing table 1. The two cloth pressing members 53 slide away from each other to flatten the cloth 10. The cloth pressing member 53 is a strip counterweight 531, and the length of the strip counterweight 531 matches the width of the cloth 10. The strip counterweight 531 is preferably made of steel. The cloth pressing member 53 is set as a strip counterweight 531 that matches the width of the cloth 10. In addition to increasing the effective area, the cloth pressing effect can also be improved by using its own weight, making the cloth 10 smoother. The strip-shaped counterweight block 531 is also connected to an electric heater. The electric heater can increase the temperature of the strip-shaped counterweight block 531, thereby playing the role of ironing and shaping the cloth 10. Compared with other materials such as plastic and wood, the strip-shaped counterweight block 531 made of metal has better thermal conductivity.

[0044] Reference Figure 1 The cloth pulling assembly 6 includes a fixedly connected connection portion 61 and a clamp 62. One end of the connection portion 61 away from the clamp 62 is slidably connected to the first electric slide rail 211. The clamp 62 is used to fix the cloth 10. The clamp 62 includes two electromagnets 621 facing each other. The electromagnets 621 are energized to generate magnetic force to attract and fix each other. The connection portion 61 with the clamp 62 is slidably connected to the first electric slide rail 211, so that the cloth 10 can be pulled along the length direction of the cloth 10. The fixing effect of the clamp 62 makes it difficult for the cloth 10 to fall off, which facilitates the cloth 10 to face the cloth pressing assembly 5, thereby improving the cloth pulling efficiency. The cloth 10 is fixed by magnetic attraction, and the structure is simple. The cloth 10 can be conveniently fixed or released by controlling the on and off of the circuit.

[0045] Example 2

[0046] The difference between the second embodiment and the first embodiment is that the structure of the cloth pressing member 53 is different.

[0047] Reference Figure 1 The cloth pressing member 53 is a roller 532. The cloth pressing member 53 is set as a roller 532 to make the cloth pressing process smoother, reduce the load of the third electric slide 51 driving the cloth pressing member 53 to slide, and avoid the sharp edge of the cloth pressing member 53 surface from damaging the surface of the cloth 10 as much as possible.

[0048] Example 3

[0049] The difference between the embodiment 3 and the embodiment 1 is that the structure of the cloth pressing member 53 is different.

[0050] Reference Figure 1 The cloth pressing member 53 has a hollow cavity inside, and a plurality of air holes 533 are opened at the bottom of the cloth pressing member 53 to communicate with the hollow cavity, and the hollow cavity is communicated with an external steam generator. During the moving cloth pressing process, steam is sprayed onto the surface of the cloth 10 through the air holes 533, which can wet the cloth 10 and protect the fabric from being burned during ironing.

[0051] The above are all preferred embodiments of the present application. Obviously, the embodiments described above are only preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made by ordinary technicians in this field based on the structure, shape, and principle of the present application without making any creative work should be covered within the protection scope of the present application.

Claims

1. A conveying mechanism of a flat weft knitting machine, used for conveying fabric (10) to a sewing machine, having a built-in numerical control system, characterized in that: The invention comprises a processing table (1), a frame (2) is provided directly above the processing table (1), a reeling roller group (3) is provided on one side of the processing table (1), a cutting knife (4) is provided at one end of the reeling roller group (3) close to the processing table (1), a cloth pressing assembly (5) facing the processing table (1) is provided at the bottom of the frame (2), the cloth pressing assembly (5) is used to flatten the cloth (10), a cloth pulling assembly (6) is slidably provided on the frame (2), and the reeling roller group (3) and the cloth pulling assembly (6) are arranged opposite to each other.

2. The conveying mechanism of the flat weft knitting machine according to claim 1, characterized in that: The frame (2) comprises a crossbeam (21), a longitudinal beam (22) and a support frame (23) which are fixedly connected to each other. The bottom of the support frame (23) is fixedly connected to the processing table (1). The crossbeam (21) and the longitudinal beam (22) are perpendicular to each other and parallel to the processing table (1). A first electric slide rail (211) is provided on the crossbeam (21), and a second electric slide rail (221) is provided on the longitudinal beam (22). The cloth pulling assembly (6) is slidably connected to the first electric slide rail (211), and the cloth pressing assembly (5) is slidably connected to the second electric slide rail (221).

3. The conveying mechanism of the flat weft knitting machine according to claim 2, characterized in that: The cloth pressing assembly (5) comprises a third electric slide rail (51), a telescopic rod (52) and a pair of cloth pressing members (53); one end of the telescopic rod (52) is fixedly connected to the center of the third electric slide rail (51); one end of the telescopic rod (52) away from the third electric slide rail (51) is slidably connected to the second electric slide rail (221); the third electric slide rail (51) is vertically and slidably connected to the second electric slide rail (221); each of the two ends of the third electric slide rail (51) is slidably connected to one of the cloth pressing members (53); the telescopic rod (52) is extended to make the cloth pressing member (53) press against the processing table (1); and the two cloth pressing members (53) slide away from each other to flatten the cloth (10).

4. The conveying mechanism of the flat weft knitting machine according to claim 3, characterized in that: The cloth pressing member (53) is a strip-shaped counterweight block (531), and the length of the strip-shaped counterweight block (531) matches the width of the cloth (10).

5. The conveying mechanism of the flat weft knitting machine according to claim 4, characterized in that: The strip-shaped counterweight block (531) is connected to an electric heater.

6. The conveying mechanism of the flat weft knitting machine according to claim 5, characterized in that: The strip-shaped counterweight block (531) is made of metal.

7. The conveying mechanism of the flat weft knitting machine according to claim 3, characterized in that: The cloth pressing member (53) is a roller (532).

8. The conveying mechanism of the flat weft knitting machine according to claim 3, characterized in that: A hollow cavity is provided inside the cloth pressing piece (53), and a plurality of air holes (533) communicating with the hollow cavity are opened at the bottom of the cloth pressing piece (53), and the hollow cavity is communicated with an external steam generator.

9. The conveying mechanism of the flat weft knitting machine according to claim 2, characterized in that: The cloth pulling assembly (6) comprises a fixedly connected connecting portion (61) and a clamp (62), wherein one end of the connecting portion (61) away from the clamp (62) is slidably connected to the first electric slide rail (211), and the clamp (62) is used to fix the cloth (10).

10. The conveying mechanism of the flat weft knitting machine according to claim 9, characterized in that: The clamp (62) comprises two electromagnets (621) facing each other, and the electromagnets (621) are energized to generate magnetic force so as to attract and fix them to each other.

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