Large-size cloth guide structure

Abstract

The utility model relates to a large-size cloth guiding structure, in particular to the technical field of feeding mechanisms, and comprises a first limiting roller, a second limiting roller, a third limiting roller and a fourth limiting roller which are arranged above an extruding machine frame, after assembly, the first limiting roller and the fourth limiting roller are matched with each other, and the second limiting roller and the third limiting roller are matched with each other. And the first limiting roller, the second limiting roller, the third limiting roller and the fourth limiting roller are driven by a driving motor. Compared with the prior art which only pays attention to the current diameter thickness of the large-size cloth during material bearing and also pays attention to the situation that the diameter thickness of the large-size cloth is changed from large to small during use, at least four limiting rollers are arranged on the rack, so that the cloth can be supported before the cloth is used, and the cloth can be prevented from being damaged. And the limiting baffles used for limiting the front side and the rear side of the cloth are further arranged on the rack, so that the cloth is prevented from deviating in the using process.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding mechanisms, in particular to a large-size cloth guiding structure. Background Art

[0002] The flat-bed sewing machine mainly uses a sewing thread to form a stitch on the sewing material, so that one or more layers of sewing materials are interwoven or sewn together. The flat-bed sewing machine is the most basic type of sewing equipment. It has the simplest stitch. The stitches are neat and beautiful, uniform, flat and firm, with fast sewing speed and easy operation.

[0003] The feeding mechanism of the traditional flat-bed sewing machine is not suitable for large-sized cloth. This is because the traditional feeding mechanism often only focuses on the current diameter and thickness of the large-sized cloth, and does not pay attention to whether the edge of the feeding mechanism can support the cloth with a smaller diameter when the diameter and thickness of the large-sized cloth change from large to small in the later period of use. That is, the feeding mechanism of the traditional flat-bed sewing machine often only pays attention to the ideal support situation and does not take into account the changing situation. As our company previously applied for a patent number CN219342501U for a flat-bed sewing machine, there are the above problems. In the actual use process, it is gradually found that there is a problem of difficulty in supporting large-sized cloth when the diameter becomes smaller, so the utility model is proposed to solve it. Utility Model Content

[0004] (1) Technical issues to be resolved

[0005] The utility model aims at the above-mentioned problems in the prior art and provides a large-size cloth guide structure which can be reasonably manufactured and used in order to make up for the deficiencies of the prior art.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the utility model provides such a large-size cloth guiding structure, comprising a first limiting roller, a second limiting roller, a third limiting roller and a fourth limiting roller arranged above an extrusion frame, wherein the first limiting roller, the second limiting roller, the third limiting roller and the fourth limiting roller are arranged in sequence from the outside to the inside; after assembly, the first limiting roller and the fourth limiting roller cooperate with each other, the second limiting roller and the third limiting roller cooperate with each other, the first limiting roller, the second limiting roller, the third limiting roller and the fourth limiting roller support the large-size cloth, the frame is further provided with a connecting rod, the connecting rod is provided with a limiting baffle for clamping the edge of the large-size cloth, and the connecting rod is arranged on the outer side of the first limiting roller;

[0008] The first limiting roller, the second limiting roller, the third limiting roller and the fourth limiting roller are all driven by a driving motor.

[0009] Preferably, the first limiting roller and the fourth limiting roller are set at the same height and are used to press against the outside of the large-sized cloth, the second limiting roller and the third limiting roller are set at the same height and are used to press against the inside of the large-sized cloth, and the height at which the first limiting roller and the fourth limiting roller are set is higher than the height at which the second limiting roller and the third limiting roller are set.

[0010] Preferably, a ring is provided at one end of the limit baffle, and the ring is sleeved on the connecting rod and can drive the limit baffle to slide on the connecting rod. A pressing snap is provided at the other end of the limit baffle, and when in use, the pressing snap is pressed onto the fourth limit roller.

[0011] Preferably, the driving motor is connected to the second limiting roller and the third limiting roller through a first conveyor belt and drives the second limiting roller and the third limiting roller to rotate, the second limiting roller is connected to the first limiting roller through a second conveyor belt, and the third limiting roller is also connected to the fourth limiting roller through a second conveyor belt.

[0012] Preferably, the driving motor is arranged at a midline position close to a line connecting the second limiting roller and the third limiting roller, and is installed on the inner side of the frame.

[0013] (3) Beneficial effects

[0014] Compared with the prior art which only focuses on the diameter and thickness of large-sized cloth when it is being received, the utility model also notes that the diameter and thickness of large-sized cloth change from large to small when it is used, and at least four limiting rollers are arranged on the frame, so that the cloth can be supported not only before use but also after use, and the smooth pulling out of the cloth during use is not affected. Limiting baffles are also arranged on the frame for limiting the front and rear sides of the cloth to prevent the cloth from running off the track during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the large-size cloth guide structure of the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of a three-dimensional structure from another perspective;

[0017] Figure 3 for Figure 1 A schematic diagram of a three-dimensional structure from another perspective;

[0018] Figure 4 for Figure 1 Left view of

[0019] Figure 5 for Figure 1 Bottom view of

[0020] Figure 6 It is an enlarged three-dimensional schematic diagram of the connection part of the drive motor of the utility model;

[0021] Figure 7 for Figure 6 Direction front view.

[0022] Figure numerals: 11-frame, 2-connecting rod, 3-limit baffle, 4-first limit roller, 5-second limit roller, 6-third limit roller, 7-fourth limit roller, 8-driving motor, 9-first conveying belt, 10-second conveying belt. DETAILED DESCRIPTION

[0023] The utility model is further described in conjunction with the accompanying drawings and embodiments.

[0024] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "vertical", "horizontal", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] like Figure 1-3As shown, a large-size cloth guiding structure of the utility model comprises a first limiting roller 4, a second limiting roller 5, a third limiting roller 6 and a fourth limiting roller 7 arranged above the extruder frame 1. The four limiting rollers are arranged to provide support for the large-size cloth when it is placed at the earliest and the latest, and at the same time do not affect the rolling of the large-size cloth when it is used. It should be noted that this scheme is an improvement on the prior art. If more than four limiting rollers are used (for example, six, eight, etc.), and the functional effects of this scheme can still be achieved, they fall within the protection scope of this scheme for the convenience of description. This scheme is described using four limiting rollers with a minimum limit value, specifically: the first limiting roller 4, the second limiting roller 5, the third limiting roller 6 and the fourth limiting roller 7 are arranged in sequence from the outside to the inside, wherein the first limiting roller 4 and the fourth limiting roller 7 are arranged at the same height and are used to resist the outside of the large-sized cloth, the second limiting roller 5 and the third limiting roller 6 are arranged at the same height and are used to resist the inside of the large-sized cloth, and the height of the first limiting roller 4 and the fourth limiting roller 7 is higher than the height of the second limiting roller 5 and the third limiting roller 6. In the early stage of placing the large-sized cloth, it is supported by two outer limiting rollers, namely the first limiting roller 4 and the fourth limiting roller 7. When the diameter and thickness of the cloth gradually decrease, the second limiting roller 5 and the third limiting roller 6 are used to replace the support to achieve the effect of continuous use. Therefore, after assembly, the first limiting roller 4 and the fourth limiting roller 7 cooperate with each other, and the second limiting roller 5 and the third limiting roller 6 cooperate with each other. The first limiting roller 4, the second limiting roller 5, the third limiting roller 6 and the fourth limiting roller 7 support the large-sized cloth.

[0026] The frame 1 is also provided with a connecting rod 2, and the connecting rod 2 is provided with a limit baffle 3 for clamping the edge of the large-sized cloth. The limit baffle 3 is mainly used to limit the front and back movement of the cloth (the front and back direction is the attached Figure 1 In the front-to-back direction), the limit baffle 3 is installed on the connecting rod 2 through a ring. Specifically, one end of the limit baffle 3 is provided with a ring, and the ring is sleeved on the connecting rod 2, so that the limit baffle 3 can be driven to slide along the connecting rod 2. The other end of the limit baffle 3 is provided with a pressing bayonet. During use, in order to limit the movement of large-sized cloth, the pressing bayonet is pressed on the fourth limit roller 7 to achieve the effect of wrapping on both sides.

[0027] The power mechanism is a driving motor 8, and the first limiting roller 4, the second limiting roller 5, the third limiting roller 6 and the fourth limiting roller 7 are all driven by the driving motor 8. The driving motor 8 is connected to the second limiting roller 5 and the third limiting roller 6 through the first conveyor belt 9 and drives the second limiting roller 5 and the third limiting roller 6 to rotate. The second limiting roller 5 is connected to the first limiting roller 4 through the second conveyor belt 10, and the third limiting roller 6 is also connected to the fourth limiting roller 7 through the second conveyor belt 10. It is achieved through a layer-by-layer linkage method that only one driving motor 8 is needed to drive the four limiting rollers to rotate coaxially and in the same direction. In order to facilitate the installation of the driving motor 8 and prevent dust from falling, the driving motor 8 is arranged at the midline position close to the line connecting the second limiting roller 5 and the third limiting roller 6, and is installed on the inner side of the frame 1.

[0028] When the utility model is in use, the large-sized cloth is placed on the first limiting roller, the second limiting roller, the third limiting roller and the fourth limiting roller, and the limiting baffle on the connecting rod is adjusted to clamp the front and back of the large-sized cloth to prevent deviation when the material is pulled. At this time, the driving motor is turned on, and the driving motor is used to drive the first limiting roller, the second limiting roller, the third limiting roller and the fourth limiting roller to rotate in the same direction. At this time, the cloth is pulled out along the rotation direction. When the diameter and thickness of the cloth become smaller and smaller, the center of gravity will gradually be lowered and carried on the second limiting roller and the third limiting roller. At the same time, the first limiting roller and the fourth limiting roller have the effect of left and right clamping. Such an arrangement can make the material guiding mechanism applicable to the entire feeding process.

[0029] The above embodiments only express the preferred implementation of the utility model, and the description is relatively specific and detailed, but the utility model is not limited to these embodiments. It should be pointed out that for ordinary technicians in this field. Under the premise of not departing from the purpose of the utility model, any improvement made falls within the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A large-size cloth guide structure, characterized in that: The invention comprises a first limiting roller (4), a second limiting roller (5), a third limiting roller (6) and a fourth limiting roller (7) arranged above an extrusion frame (1), wherein the first limiting roller (4), the second limiting roller (5), the third limiting roller (6) and the fourth limiting roller (7) are arranged in sequence from the outside to the inside; after assembly, the first limiting roller (4) and the fourth limiting roller (7) cooperate with each other, and the second limiting roller (5) and the third limiting roller (6) cooperate with each other, and the first limiting roller (4), the second limiting roller (5), the third limiting roller (6) and the fourth limiting roller (7) support large-sized cloth; the frame (1) is also provided with a connecting rod (2), and the connecting rod (2) is provided with a limiting baffle (3) for clamping the edge of the large-sized cloth; the connecting rod (2) is arranged on the outside of the first limiting roller (4); The first limiting roller (4), the second limiting roller (5), the third limiting roller (6) and the fourth limiting roller (7) are all driven by a driving motor (8).

2. A large-size cloth material guiding structure according to claim 1, characterized in that: The first limiting roller (4) and the fourth limiting roller (7) are arranged at the same height and are used to press against the outer side of the large-sized cloth; the second limiting roller (5) and the third limiting roller (6) are arranged at the same height and are used to press against the inner side of the large-sized cloth; the first limiting roller (4) and the fourth limiting roller (7) are arranged at a height higher than the second limiting roller (5) and the third limiting roller (6).

3. A large-size cloth material guiding structure according to claim 1, characterized in that: A collar is provided at one end of the limit baffle (3), the collar is sleeved on the connecting rod (2) and can drive the limit baffle (3) to slide on the connecting rod (2), and a pressing bayonet is provided at the other end of the limit baffle (3), and when in use, the pressing bayonet is pressed onto the fourth limit roller (7).

4. A large-size cloth material guiding structure according to any one of claims 1 to 3, characterized in that: The driving motor (8) is connected to the second limiting roller (5) and the third limiting roller (6) via a first conveyor belt (9) and drives the second limiting roller (5) and the third limiting roller (6) to rotate; the second limiting roller (5) and the first limiting roller (4) are connected via a second conveyor belt (10); and the third limiting roller (6) and the fourth limiting roller (7) are also connected via a second conveyor belt (10).

5. A large-size cloth material guiding structure according to claim 4, characterized in that: The driving motor (8) is arranged at a midline position close to a line connecting the second limiting roller (5) and the third limiting roller (6), and is installed on the inner side of the frame (1).

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