Needle removing mechanism of spreading machine

Abstract

The utility model discloses a needle removing mechanism of a spreading machine, which is arranged between a spreading drying part and a cloth storage part, the spreading drying part is arranged on a frame body, two sides of the frame body are respectively provided with two needle plate groups, and the two needle plate groups are used for conveying base cloth between the spreading drying part and the cloth storage part; comprising two needle removing groups, and the two needle removing groups are installed on the frame body through rotatable round wheels with bearings and protrude out of the corresponding needle plate groups. Each of the two needle removing groups comprises at least two needle removing wheels, the needle removing wheels on each needle removing group are sequentially arranged along the conveying direction of the needle plate group, and the axial direction of each needle removing wheel is arranged along the width direction of the frame body; and the distance between each needle removing wheel in each needle removing group and the reference surface is gradually reduced along the conveying direction of the needle plate group. Therefore, the base cloth is gradually jacked up by the needle releasing wheels on the same side for multiple times, and in the process, as the angle of the base cloth is almost consistent with that of the needle plate, broken needles can be reduced, the flatness of the base cloth is improved, and corrugated edges of the base cloth are reduced.

Description

Technical Field

[0001] The utility model relates to the field of a width expander, and more specifically to a needle-removing mechanism of a width expander. Background Art

[0002] At present, the finished base fabrics manufactured by the circular knitting machines on the market need to be dried and stored in sequence after being opened and shaped. In the process of conveying the base fabric to the storage part after drying, the two sides of the base fabric need to be detached from the needle plate. The existing method uses a needle-removing roller to lift the base fabric upward to help remove the needles, or a conveying device is provided between the drying part and the storage part, and the conveying device includes two transmission rollers arranged opposite to each other. With the assistance of the transmission rollers, the base fabric is separated from the needle plate by relying on the tension of the base fabric. The above two needle-removing methods have the following defects: 1. When removing the needles, the angle between the base fabric and the needle plate is 45°, which makes it easy for the needles to break when the base fabric is thicker; 2. When the tension of the transmission roller or the needle-removing roller is insufficient, it will make it difficult for the base fabric and the needle plate to be separated, and it is easy to make the needle plates on both sides be unevenly stressed, thereby causing the base fabric to be unevenly stressed and offset, causing the base fabric to wrinkle, affecting the quality of the base fabric.

[0003] Based on this, the applicant conducted in-depth research on this basis, which led to the emergence of this case. Utility Model Content

[0004] The utility model aims to provide a needle-removing mechanism of a width expander which has uniform force and is not prone to needle breakage.

[0005] To achieve the above purpose, the solution of the utility model is:

[0006] A needle-removing mechanism of a widening machine is arranged between an expanding and drying part and a cloth storage part, the expanding and drying part is installed on a frame, and two slidable needle plate groups are respectively provided on both sides of the frame, and the two needle plate groups are used to transport the base cloth to between the expanding and drying part and the cloth storage part; it includes two sets of needle-removing groups, the two needle-removing groups are respectively arranged one-to-one with the two needle plate groups, the two needle-removing groups are respectively installed on both sides of the frame in a rotatable manner, and the upper parts of the two needle-removing groups protrude from the corresponding needle plate groups; the two needle-removing groups each include at least two needle-removing wheels, each needle-removing wheel on each needle-removing group is arranged in sequence along the conveying direction of the needle plate group, and the axial direction of each needle-removing wheel is arranged along the width direction of the frame; taking the upper side surface of the needle plate group as a reference plane, the distance between each needle-removing wheel in each needle-removing group and the reference plane gradually decreases along the conveying direction of the needle plate group.

[0007] The frame is provided with two mounting plates arranged opposite to each other, and a plurality of fixed shafts are respectively mounted on the two mounting plates. A bearing is respectively embedded on each of the needle-removing wheels, and each of the needle-removing wheels is respectively mounted on the frame through the corresponding bearing and the fixed shaft.

[0008] The axes of the needle-removing wheels in the same needle-removing group are located at the same height, and the outer diameters of the needle-removing wheels in each needle-removing group are arranged to gradually increase along the conveying direction.

[0009] There are three needle-removing wheels in each needle-removing group, and the three needle-removing wheels correspond to the first needle-removing wheel, the second needle-removing wheel and the third needle-removing wheel respectively. The outer diameter of the first needle-removing wheel is smaller than the outer diameter of the second needle-removing wheel, and the outer diameter of the second needle-removing wheel is smaller than the outer diameter of the third needle-removing wheel.

[0010] The outer diameters of the needle-removing wheels are the same, and the axes of the needle-removing wheels in each needle-removing group are arranged in sequence gradually approaching the reference plane along the conveying direction of the needle plate group.

[0011] There are three needle removing wheels in each needle removing group, and the three needle removing wheels correspond to the first needle removing wheel, the second needle removing wheel and the third needle removing wheel respectively. The axes of the first needle removing wheel, the second needle removing wheel and the third needle removing wheel are arranged in sequence along the conveying direction of the needle plate group gradually approaching the reference plane.

[0012] After adopting the above structure, the utility model has the following beneficial effects: the utility model arranges the needle-removing group at the position close to the needle plate group, and since each needle-removing wheel in each needle-removing group gradually approaches the reference plane along the conveying direction, when the base cloth is conveyed to the drying part and the cloth storage part, the base cloth relies on each needle-removing wheel to gradually remove the needles, that is, the base cloth is needle-removed for multiple times, and when the needles are removed, the base cloth is first slightly lifted up, and then the slightly lifted base cloth is lifted up again, so that multiple volumes are lifted up in sequence by each needle-removing wheel on the same side, and are gradually raised, so that the base cloth will not break the needles due to excessive force caused by being suddenly pulled up, that is, in this process, since the angle of the base cloth when it is lifted up is almost the same as that of the corresponding needle plate group, the occurrence of broken needles can be reduced. At the same time, since the needles on both sides are removed synchronously, the base cloth will not be wrinkled due to uneven force, the flatness of the base cloth is improved, the occurrence of ruffles on the base cloth is reduced, and the quality of the base cloth is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the needle-removing mechanism of the utility model.

[0014] Figure 2 It is a schematic diagram of the first structure of the needle-removing mechanism of the utility model, which cooperates with the expansion drying part and the cloth storage part.

[0015] Figure 3It is a schematic diagram of the second structure of the needle-removing mechanism of the utility model, which cooperates with the expansion drying part and the cloth storage part.

[0016] In the figure:

[0017] 100-expanding and drying part; 200-cloth storage part; 300-frame; 400-auxiliary roller; 500-matching roller; 600-base cloth; 11-first pin-removing wheel; 12-second pin-removing wheel; 13-third pin-removing wheel; 3-needle plate group; 4-reference surface. DETAILED DESCRIPTION

[0018] In order to further explain the technical solution of the present utility model, the present utility model is described in detail below through specific embodiments.

[0019] The utility model discloses a needle-removing mechanism of a widening machine, which is improved on the basis of a common widening machine, such as Figure 1-3As shown, a common widening machine includes a widening drying part 100, a cloth storage part 200 and a frame 300. The widening drying part 100 adopts a conventional dryer to achieve drying, and the cloth storage part 200 is used to roll up the dried base cloth 600, and the cloth storage part 200 adopts a conventional winding machine to complete the winding; wherein, the widening drying part 100 is installed on the frame 300, and conveying devices are installed on both sides of the frame 300, and a part of the two conveying devices is located inside the widening drying part 100, and the other part is extended out of the widening drying part 100. The cloth storage part 200 is outside the scope of the part 100 and is located between the expansion drying part 100 and the cloth storage part 200, and the two conveying devices convey toward the cloth storage part 200 respectively; wherein, both conveying devices can adopt conventional chain conveying devices or belt conveying devices. In this embodiment, both conveying devices adopt chain conveying devices to realize conveying. Since the chain conveying device is not an improved part of the utility model and is a conventional conveying device in the field, it is not described in detail; the chains of the two conveying devices are respectively connected with needle plate groups 3, that is, two needle plate groups 3, two The needle plate group 3 is used to position the two sides of the base fabric 600 to prevent deviation during the drying process. The two needle plate groups 3 are respectively the needle plate groups 3 commonly used in the widening machine. The two needle plate groups 3 have the same structure, so one of them is used as an example for explanation. The needle plate group 3 includes multiple needle plates and multiple positioning needles. Each needle plate is respectively provided with multiple positioning needles along the length direction, and each needle plate is sequentially connected to the corresponding chain, and each needle plate is arranged upward; two auxiliary rollers 400 are provided between the widening and drying part 100 and the cloth storage part 200, and the two auxiliary rollers 400 are compared. The conveying device is closer to the cloth storage part 200, and the two auxiliary rollers 400 are respectively installed on the frame 300 in a rotatable manner. The two auxiliary rollers 400 are arranged along the width direction of the frame 300, and a matching roller 500 is mounted on the frame 300. The matching roller 500 is slidably matched with the auxiliary roller 400 adjacent to the cloth storage part 200, and the matching roller is pressed down on the upper surface of the base cloth 600; in this way, the base cloth 600 conveyed from the expansion drying part 100 enters the cloth storage part 200 after passing through one of the auxiliary rollers 400.

[0020] Furthermore, for the convenience of description, the two ends of the base cloth 600 along the conveying direction correspond to the front end and the rear end respectively. During the needle removal process of the base cloth 600, the two sides of the base cloth 600 corresponding to this part of the expanding dryer are positioned in the expanding dryer by two needle plate groups 3, and the rear end of the base cloth 600 is rolled up by the cloth storage part.

[0021] In the present invention, for the convenience of description, the length direction of the frame 300 and the direction close to the cloth storage part 200 is the conveying direction of the needle plate group 3 of the present invention.

[0022] The improvement of the utility model lies in that a needle-removing mechanism is provided between the expanding and drying part 100 and the cloth storage part 200, and the needle-removing mechanism is used to remove the two sides of the base cloth 600 delivered from the expanding and drying part 100 from the corresponding needle plates. The specific structure is as follows: the needle-removing mechanism includes two sets of needle-removing groups, and the two needle-removing groups are respectively arranged one-to-one with the two needle plate groups 3. The two needle-removing groups are arranged between the expanding and drying part 100 and the cloth storage part 200, and are respectively arranged on both sides of the frame 300, and the two needle-removing groups are arranged opposite to each other. The two needle-removing groups each include at least two needle-removing wheels, and the needle-removing wheels on the same side are arranged in sequence. Arranged adjacent to each other, each needle removing wheel is rotatably mounted on the frame 300, and the upper part of each needle removing wheel protrudes from the needle plate group 3, and the needle removing wheels on the same side are arranged in sequence along the conveying direction, and the axial direction of each needle removing wheel is arranged along the width direction of the frame 300; taking the upper side surface of the needle plate group 3 as the reference plane 4, the distance between each needle removing wheel in each needle removing group and the reference plane 4 gradually becomes smaller along the conveying direction. In other words, the upper part of each needle removing wheel in each needle removing group protrudes more and more from the needle plate group 3 along the conveying direction, so as to ensure that the base cloth 600 can be smoothly detached.

[0023] Furthermore, the rotating mounting structure of each needle-removing wheel is as follows: two mounting plates arranged back to back are mounted on the frame 300, and both mounting plates are L-shaped. The mounting structure of each needle-removing wheel is the same, so one of the needle-removing wheels is taken as an example for explanation. A bearing is embedded in the axial position of the needle-removing wheel, and a fixed shaft is mounted on the bearing. One end of the fixed shaft extends out of the bearing and is fixedly mounted on the mounting plate. In other words, the needle-removing wheel is rotatably mounted on the frame 300 through the cooperation of the bearing and the fixed shaft; in addition, the needle-removing wheel can also be mounted on the frame 300 using other conventional rotating structures.

[0024] Furthermore, in the needle removing group on the same side, each needle removing wheel is arranged close to the needle plate group 3, that is, each needle removing wheel is close to the chain in the conveying device, so as to ensure that most of the lifting force of the corresponding needle removing wheel is applied to the base cloth 600 when the needle is removed from the base cloth 600, thereby ensuring that the positioning needle is separated from the base cloth 600.

[0025] Furthermore, in each needle-removing group, there are three needle-removing wheels, and the needle-removing wheels correspond to the first needle-removing wheel 11, the second needle-removing wheel 12 and the third needle-removing wheel 13 along the conveying direction, so that the base cloth 600 gradually separates from the corresponding needle plate group 3, instead of directly pulling up the base cloth 600, and the first needle-removing wheel 11, the second needle-removing wheel 12 and the third needle-removing wheel 13 smoothly transition in sequence. Preferably, the two third needle-removing wheels 13 can be used as spare needle-removing wheels, that is, the third needle-removing wheel 13 does not work during normal needle removal. Once the first needle-removing wheel 11 or the second needle-removing wheel 12 fails, the third needle-removing wheel 13 participates in the needle-removing work, so as to avoid the entire machine from stopping operation, and the damaged needle-removing wheel can be repaired when the machine is idle.

[0026] Furthermore, in the present invention, each of the needle-removing wheels on the same side has two structures, and the two structures are described in detail below.

[0027] The first structure: the structures and positions of the two needle removal groups are the same, so one of the groups is used as an example for explanation. Figure 2 As shown, the axes of the three pin-removing wheels are at the same height on the reference plane 4, that is, the axis installation positions of the three pin-removing wheels are at the same height, so that the outer diameter of the first pin-removing wheel 11 is smaller than the outer diameter of the second pin-removing wheel 12, and the outer diameter of the second pin-removing wheel 12 is smaller than the outer diameter of the third pin-removing wheel 13. In other words, the specifications of the first pin-removing wheel 11, the second pin-removing wheel 12 and the third pin-removing wheel 13 are different.

[0028] The second structure: the structures and positions of the two needle removal groups are the same, so one of the groups is used as an example for explanation. Figure 3 As shown, in each needle removing group, the outer diameters of the needle removing wheels are the same. In other words, the axial installation positions of the needle removing wheels are different. The axial centers of the first needle removing wheel 11, the second needle removing wheel 12 and the third needle removing wheel 13 are arranged in sequence along the conveying direction gradually approaching the reference plane 4.

[0029] In this way, the base cloth 600 is conveyed out from the expanding dryer, and passes through the first pin removing wheel 11 and the second pin removing wheel 12 in sequence. At this time, since the two first pin removing wheels 11 protrude from the needle plate group 3, the two sides of the base cloth 600 are slightly separated from the positioning needles of the needle plate group 3 at the corresponding needle plate group 3 under the pushing action of the corresponding first pin removing wheels 11, and then separated from the corresponding positioning needles under the action of the second pin removing wheel 12, thereby completing the separation of the corresponding part of the base cloth 600. In this process, since the angles of the base cloth and the needle plates in the needle plate group 3 are almost the same, the possibility of the positioning needles in the needle plate group 3 pushing the needles is reduced, and since the pin removal on both sides is synchronized and the base cloth is removed in a gentle manner, the base cloth will not wrinkle due to uneven force, thereby ensuring the quality of the base cloth.

[0030] The above is only a preferred embodiment of the present invention, and all equivalent changes and modifications made within the scope of the claims of the present utility model shall fall within the scope of the claims of the present utility model.

Claims

1. A needle-removing mechanism of a widening machine, arranged between a widening drying part and a cloth storage part, wherein the widening drying part is mounted on a frame, and two slidable needle plate groups are respectively provided on both sides of the frame, and the two needle plate groups are used to transport the base cloth to between the widening drying part and the cloth storage part; characterized in that: It comprises two sets of needle-removing groups, and the two needle-removing groups are respectively arranged one-to-one with the two needle plate groups. The two needle-removing groups are respectively rotatably mounted on both sides of the frame, and the upper parts of the two needle-removing groups protrude from the corresponding needle plate groups. The two needle-removing groups each comprise at least two needle-removing wheels, and the needle-removing wheels on each needle-removing group are sequentially arranged along the conveying direction of the needle plate group, and the axial direction of each needle-removing wheel is arranged along the width direction of the frame. With the upper side surface of the needle plate group as a reference plane, the distance between each needle-removing wheel in each needle-removing group and the reference plane gradually decreases along the conveying direction of the needle plate group.

2. The needle-removing mechanism of the expander according to claim 1, characterized in that: The frame is provided with two mounting plates arranged opposite to each other, and a plurality of fixed shafts are respectively mounted on the two mounting plates. A bearing is respectively embedded on each of the needle-removing wheels, and each of the needle-removing wheels is respectively mounted on the frame through the corresponding bearing and the fixed shaft.

3. The needle-removing mechanism of the expander according to claim 2, characterized in that: The axes of the needle-removing wheels in the same needle-removing group are located at the same height, and the outer diameters of the needle-removing wheels in each needle-removing group are arranged to gradually increase along the conveying direction.

4. The needle-removing mechanism of the expander according to claim 3, characterized in that: There are three needle-removing wheels in each needle-removing group, and the three needle-removing wheels correspond to the first needle-removing wheel, the second needle-removing wheel and the third needle-removing wheel respectively. The outer diameter of the first needle-removing wheel is smaller than the outer diameter of the second needle-removing wheel, and the outer diameter of the second needle-removing wheel is smaller than the outer diameter of the third needle-removing wheel.

5. The needle-removing mechanism of the expander according to claim 2, characterized in that: The outer diameters of the needle-removing wheels are the same, and the axes of the needle-removing wheels in each needle-removing group are arranged in sequence gradually approaching the reference plane along the conveying direction of the needle plate group.

6. The needle-removing mechanism of the expander according to claim 5, characterized in that: There are three needle removing wheels in each needle removing group, and the three needle removing wheels correspond to the first needle removing wheel, the second needle removing wheel and the third needle removing wheel respectively. The axes of the first needle removing wheel, the second needle removing wheel and the third needle removing wheel are arranged in sequence along the conveying direction of the needle plate group gradually approaching the reference plane.

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