Self-gravity adjusting cloth storage mechanism of longitudinal seam transverse cutting machine

Abstract

The self-gravity adjusting cloth storage mechanism of the longitudinal seam transverse cutting machine comprises a vertical rectangular frame, a top roller set, a lower shaft frame and a traction device, the top roller set is transversely installed on the top of the frame at intervals, and the traction device comprises idler wheels and synchronous belts which are symmetrically arranged on the upper portion and the lower portion of the two side edges of the frame. The synchronous belt is vertically wound on the upper and lower rollers on the same side, the lower shaft bracket is positioned below the top roller group, and two ends of the lower shaft bracket are connected with the synchronous belt. Cloth is wound on the cloth storage device, the cloth storage amount is adjusted according to the self gravity, and the operation progress of front and back longitudinal sewing and transverse cutting equipment is controlled.

Description

Technical Field

[0001] This utility model relates to the field of textile sewing and cutting production equipment, and in particular to a gravity-adjustable fabric storage mechanism for a longitudinal and transverse sewing machine. Background Technology

[0002] Textiles such as bed sheets and towels are cut into long strips according to specifications. Then, the two sides of the strips are sewn together, and then they are cut into pieces. Finally, the short sides are sewn together to form individual items. The longitudinal and transverse cutting machine completes two processes: longitudinal sewing of the long side and transverse cutting of the short side of the fabric strip. However, the operating speeds of the longitudinal sewing machine on the front side and the transverse cutting machine on the back side are not matched. Therefore, it is particularly important to design a fabric storage mechanism located between the two machines to realize the function of the production line. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a gravity-adjustable fabric storage mechanism for a longitudinal and transverse cutting machine. The fabric is wound around it, and the amount of fabric stored is adjusted according to its own weight to control the running progress of the longitudinal and transverse cutting equipment.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] The self-gravity adjustable fabric storage mechanism of the longitudinal seam transverse cutting machine includes an upright rectangular frame, a top roller group, a lower shaft frame, and a traction device. The top roller group is installed horizontally at intervals on the top of the frame. The traction device includes upper and lower rollers and a synchronous belt symmetrically arranged on both sides of the frame. The synchronous belt is vertically wound around the upper and lower rollers on the same side. The lower shaft frame is located below the top roller group, and its two ends are connected to the synchronous belt.

[0006] A further improvement is that the top roller assembly includes multiple parallel and spaced rollers, and the lower shaft frame includes at least two fabric feeding shafts that are fixedly connected to the end rods at parallel and spaced ends.

[0007] A further improvement involves installing guide rods on the inner side of the four uprights of the frame, with the four corners of the end rods movably fitted onto the guide rods. This ensures smooth and stable vertical movement of the lower shaft frame without tilting.

[0008] A further improvement involves installing four sensors—Sensor 1, Sensor 2, Sensor 3, and Sensor 4—on one side of the frame, from top to bottom, to monitor the position of the lower shaft frame. Sensors 2 and 4 are connected to the start / stop switch signal of the longitudinal sewing machine at the front of the fabric storage mechanism, while Sensors 1 and 3 are connected to the start / stop switch signal of the transverse cutting machine at the rear of the fabric storage mechanism. The sensors monitor the position of the lower shaft frame to obtain the amount of fabric stored, thus coordinating the operation of the front and rear equipment.

[0009] A further improvement includes a fall arrestor. This fall arrestor consists of a connecting shaft installed between two lower rollers, with brake pads mounted on the shaft. A brake stop is installed beside the brake pads, and the brake stop is connected to a sensor mounted on the cross-cutting machine at the rear of the fabric storage mechanism to monitor whether there is fabric on the machine. This prevents fabric from slipping off the cross-cutting machine, which could cause the lower shaft to suddenly fall and injure personnel or equipment. Beneficial effects

[0010] The fabric is wound around the top roller group and the lower shaft frame of this device. When the front longitudinal seam runs fast and there is more fabric, the lower shaft frame moves downward. When the rear transverse cutting runs fast and there is less fabric, the lower shaft frame is pulled upward by the fabric. The amount of fabric stored is adjusted according to its own weight. At the same time, sensors are installed to monitor the start and stop of the front and rear longitudinal seam and transverse cutting equipment to realize the automated operation of the production line. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0012] Figure 2 This is a side view of the present invention. Detailed Implementation

[0013] like Figure 1 , Figure 2 As shown, this utility model includes an upright rectangular frame 1, a top roller assembly 2, a lower shaft frame 3, a traction device 4, guide rods 5, a sensor, and a fall arresting device. The top roller assembly 2 includes four horizontally parallel roller shafts 21 installed at intervals on the top of the frame. The lower shaft frame 3 is located below the top roller assembly and includes three fabric-carrying shafts 31 that are fixedly connected at both ends to end rods 32 at intervals. The traction device 4 includes upper and lower rollers 41 symmetrically arranged on both sides of the frame and a synchronous belt 42. The synchronous belt 42 is vertically wound around the upper and lower rollers 41 on the same side. The end rods 32 at both ends of the lower shaft frame are connected to the synchronous belt 42. Guide rods 5 are provided on the inner side of the four uprights of the frame 1, and the four corners of the end rods 32 are movably fitted onto the guide rods 5. After the fabric comes out of the front longitudinal sewing machine, it goes down through the first roller of the top roller group, then up through the first fabric feeding shaft on the lower shaft frame, and then goes up through the second roller, the second fabric feeding shaft, the third roller, the third fabric feeding shaft, and the fourth roller in sequence, and finally enters the rear transverse cutting machine.

[0014] Sensors 61, 62, 63, and 64, which monitor the position of the lower shaft frame, are installed from top to bottom on one side of frame 1. Sensors 62 and 64 are connected to the start / stop switch signal of the longitudinal sewing machine on the front side of the fabric storage mechanism, and sensors 61 and 63 are connected to the start / stop switch signal of the transverse cutting machine on the rear side of the fabric storage mechanism. The optimal position for the lower shaft frame is between sensors two and three. When the lower shaft frame moves up to sensor two (the second highest position), it indicates that the fabric storage mechanism has insufficient remaining fabric, and the front longitudinal sewing machine needs to be started to feed the fabric. When the lower shaft frame moves down to sensor three (the third highest position), it indicates that the fabric storage mechanism has increased, and the rear cross-cutting machine needs to be started. When the lower shaft frame moves up to sensor one (the highest position), it indicates that there is no remaining fabric in the fabric storage mechanism, and the rear cross-cutting machine needs to be stopped and waited for. When the lower shaft frame moves down to sensor four (the lowest position), it indicates that the fabric storage mechanism has exhausted its storage space, and the front longitudinal sewing machine needs to be stopped and waited for.

[0015] The anti-fall device includes a connecting shaft 71 installed between two lower rollers 41. A brake pad 72 is mounted on the connecting shaft 71, and a brake stop 73 is mounted on the side of the brake pad 72. The brake stop 73 is connected to a sensor (not shown in the figure) installed on the cross-cutting machine behind the fabric storage mechanism to monitor whether there is fabric on the cross-cutting machine. During normal operation, the brake stop is in the open state. When there is no fabric on the cross-cutting machine pulling the fabric storage mechanism, the lower shaft frame may suddenly fall. After the sensor detects this, it can transmit a signal to the brake stop to open. The brake stop will then brake the brake pad, preventing the traction device from rotating, thereby preventing the lower shaft frame from falling.

[0016] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A gravity-adjusted stock mechanism for a longitudinal slitting machine, characterized in that: The application relates to a vertical rectangular frame (1), a top roller group (2), a lower shaft support (3) and a traction device (4), the top roller group (2) is horizontally and transversely arranged on the top of the frame (1), the traction device (4) comprises upper and lower rollers (41) arranged symmetrically on the two side edges of the frame and a synchronous belt (42), the synchronous belt (42) is vertically wound on the upper and lower rollers (41) on the same side, and the lower shaft support (3) is located below the top roller group and connected with the synchronous belt (42) at two ends.

2. The machine according to claim 1, characterized in that: The top roller group (2) comprises a plurality of parallel and spaced roller shafts (21), and the lower shaft support (3) comprises at least two cloth running shafts (31) which are fixedly connected to end rods (32) at two ends in parallel and at intervals.

3. The machine according to claim 2, characterized in that: Guide rods (5) are arranged on the inner sides of the four vertical rods of the frame (1), and the end rods (32) are movably sleeved on the guide rods (5).

4. The machine according to claim 1, wherein: A sensor one (61), a sensor two (62), a sensor three (63) and a sensor four (64) are arranged on one side of the frame (1) from top to bottom for monitoring the position of the lower shaft support, the sensor two (62) and the sensor four (64) are connected with the longitudinal slitting machine start-stop switch signal on the front side of the cloth storage mechanism, and the sensor one (61) and the sensor three (63) are connected with the transverse cutting machine start-stop switch signal on the rear side of the cloth storage mechanism.

5. The machine according to claim 1, wherein: The application further relates to a falling stopping device, which comprises a connecting shaft (71) arranged between the two lower rollers (41), a brake piece (72) arranged on the connecting shaft (71), and a brake stopper (73) arranged on the side of the brake piece (72), wherein the brake stopper (73) is connected with the sensor five arranged on the transverse cutting machine on the rear side of the cloth storage mechanism for monitoring whether there is cloth on the transverse cutting machine.

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