Fabric tightening device of quilting machine

Abstract

The utility model relates to a quilting machine, in particular to a fabric tightening device of the quilting machine, which comprises frames and clamping blocks, one side of a group of frames is connected with a two-way screw rod in a penetrating manner, the outer side of the two-way screw rod is sleeved with a thread sleeve, one side of the thread sleeve is connected with a movable frame penetrating through the frames, and a telescopic frame is connected between the two movable frames. Sliding blocks are installed at the two ends of the telescopic frame. The four sets of clamping blocks are symmetrically installed on one side of the telescopic frame and one side of the movable frame correspondingly. Rotating rods penetrate through the tops of the clamping blocks through rotating shafts, and arc-shaped blocks are connected to the bottoms of the rotating rods. According to the utility model, the fabric can be conveniently and quickly limited and fixed.

Description

Technical Field

[0001] The utility model relates to a quilting machine, in particular to a fabric tensioning device for a quilting machine. Background Art

[0002] When processing textile fabrics such as mattresses, bedspreads and quilts, a quilting machine is usually used. The quilting machine can sew straight lines or patterns efficiently and accurately, and has the advantages of simple operation and strong reliability. When using the quilting machine to quilt the fabric, it is necessary to tighten the fabric through a fabric tensioning device to ensure the quilting effect.

[0003] When the existing fabric tensioning device of the quilting machine is in use, in order to stably fix the fabric on the tensioning device, it is necessary to fix the four corners of the fabric. Usually, it is necessary to manually fix the fabric on the tensioning device through four groups of clamping blocks in turn, and the operation is relatively troublesome. Summary of the Invention

[0004] The purpose of the utility model is to provide a fabric tensioning device for a quilting machine to solve the problems put forward in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A fabric tensioning device for a quilting machine, including a frame and clamping blocks. One side of a group of the frames is connected through a bidirectional lead screw. A nut sleeve is sleeved on the outer side of the bidirectional lead screw. One side of the nut sleeve is connected with a movable frame penetrating through the frame. A telescopic frame is connected between two groups of the movable frames. Sliders are installed at both ends of the telescopic frame. Four groups of the clamping blocks are symmetrically installed on one side of the telescopic frame and the movable frame respectively;

[0006] The top of the clamping block is connected through a rotating shaft with a rotating rod, and the bottom of the rotating rod is connected with an arc-shaped block.

[0007] Preferably, a movable spring is connected between one side of the rotating rod and the clamping block, and the side of the rotating rod away from the movable spring is connected with a sliding block through a chute.

[0008] Preferably, one side of the sliding block is connected with a connecting rod, and a fixing block is sleeved on the outer side of the connecting rod.

[0009] Preferably, a fixing rod is installed on one side of a group of the fixing blocks, and the other two groups of the fixing blocks are installed on one side of the telescopic frame.

[0010] Preferably, a through groove is formed through the top of a group of the movable frames, and a screw rod penetrating through the slider is connected in the middle of the through groove.

[0011] Preferably, a clamping block is installed at the bottom of the screw rod, and a tooth block is arranged between the bottom of the clamping block and the groove of the movable frame.

[0012] Preferably, the screw rod and the slider are connected by a thread.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. When using the present utility model to limit and fix the fabric, only need to pull the connecting rod, drive the rotating rod and the arc-shaped block to rotate through the connecting rod. At this time, the fabric can be placed in the groove of the clamping block, and then release the pull rod, so that the rotating block rotates reversely through the movable spring and cooperates with the arc-shaped block to limit and fix the fabric, thus the fabric can be conveniently and quickly limited and fixed.

[0015] 2. When it is necessary to tighten the fabric, rotate the screw rod. The screw rod drives the clamping block to move through the slider, so that the clamping block is separated from the tooth block in the groove of the movable frame. At this time, the telescopic frame can be pushed to move, so that the telescopic frame slides along the movable frame, thus the fabric can be tightened and the fabric can be prevented from being damaged due to excessive force. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic top-sectional structure diagram of the present utility model;

[0018] Figure 2 It is a schematic top view structure diagram of the present utility model;

[0019] Figure 3 It is a schematic front-sectional structure diagram of the movable frame of the present utility model;

[0020] Figure 4 It is a schematic front-sectional structure diagram of the clamping block of the present utility model.

[0021] In the figure: 1, frame; 2, bidirectional lead screw; 3, screw sleeve; 4, movable frame; 5, telescopic frame; 6, slider; 7, clamping block; 8, rotating rod; 9, arc-shaped block; 10, movable spring; 11, sliding block; 12, connecting rod; 13, fixed block; 14, fixed rod; 15, through groove; 16, screw rod; 17, clamping block; 18, tooth block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figure 1 and Figure 2 , the present invention provides a technical solution: a fabric tensioning device for a quilting machine, including a frame 1 and clamping blocks 7. One side of a group of frames 1 is connected through a bidirectional lead screw 2. A nut sleeve 3 is sleeved on the outer side of the bidirectional lead screw 2. One side of the nut sleeve 3 is connected to a movable frame 4 that penetrates the frame 1. A telescopic frame 5 is connected between the two groups of movable frames 4. Sliders 6 are installed at both ends of the telescopic frame 5. Four clamping blocks 7 are symmetrically installed on one side of the telescopic frame 5 and the movable frame 4 respectively;

[0024] The top of the clamping block 7 is connected through a rotating shaft to a rotating rod 8. The bottom of the rotating rod 8 is connected to an arc-shaped block 9. A movable spring 10 is connected between one side of the rotating rod 8 and the clamping block 7. One side of the rotating rod 8 away from the movable spring 10 is connected to a sliding block 11 through a chute. One side of the sliding block 11 is connected to a connecting rod 12. A fixing block 13 is sleeved on the outer side of the connecting rod 12. One side of a group of fixing blocks 13 is installed with a fixing rod 14. The other two groups of fixing blocks 13 are installed on one side of the telescopic frame 5. The fixing rod 14 is installed on one side of the movable frame 4.

[0025] During specific implementation, when it is necessary to use the present invention to clamp and fix the fabric, the two mutually approaching connecting rods 12 are pulled closer along the fixing blocks 13, so that the connecting rods 12 pull the sliding blocks 11 to move. Since the sliding blocks 11 are slidably connected to the chutes of the rotating rods 8, the connecting rods 12 will pull the rotating rods 8 to rotate when moving. When the rotating rods 8 rotate, the arc-shaped blocks 9 at the bottom are driven to rotate, so that the arc-shaped blocks 9 are separated from the bottom of the grooves of the clamping blocks 7. At the same time, when the rotating rods 8 rotate, the movable springs 10 on the other side will be in a stretched state. After the arc-shaped blocks 9 are separated from the clamping blocks 7, the fabric to be clamped can be placed in the grooves between the arc-shaped blocks 9 and the clamping blocks 7. Then, the connecting rods 12 are released. The connecting rods 12 release the pulling force on the rotating rods 8. The rotating rods 8 will be reset through the movable springs 10 and rotate in the reverse direction, driving the arc-shaped blocks 9 to rotate in the reverse direction. The fabric can be clamped between the clamping blocks 7 through the arc-shaped blocks 9, so as to conveniently and quickly clamp and limit the fabric. Similarly, by pulling the other connecting rod 12 along the fixing rod 14, the fabric can be placed in the clamping blocks 7, and then the other side of the fabric can be clamped through the movable spring 10 and the arc-shaped block 9;

[0026] When the movable frame 4 drives the telescopic frame 5 to expand and contract after clamping, the connecting rod 12 will move along the fixed block 13, without affecting the normal adjustment of the telescopic frame 5. When the fabric needs to be removed, pull the connecting rod 12 again, so that the connecting rod 12 drives the arc-shaped block 9 to rotate through the rotating rod 8, and the arc-shaped block 9 releases the extrusion of the fabric, and the fabric can be quickly removed.

[0027] Refer to Figure 1 、 Figure 2 and Figure 4 It can be seen that when the fabric needs to be fixed or removed, just pull the two groups of connecting rods 12 at the same time, so that the connecting rods 12 drive the rotating rods 8 and the arc-shaped blocks 9 to rotate, and the fabric can be quickly and conveniently fixed or removed.

[0028] A through groove 15 is formed through the top of a group of movable frames 4. A screw rod 16 connecting the middle of the through groove 15 passes through a slider 6. A clamping block 17 is installed at the bottom of the screw rod 16. A toothed block 18 is arranged between the bottom of the clamping block 17 and the groove of the movable frame 4. The screw rod 16 is in threaded connection with the slider 6, and the screw rod 16 is connected to the clamping block 17 through a bearing.

[0029] During specific implementation, when the position of the telescopic frame 5 needs to be adjusted, rotate the screw rod 16. Since the screw rod 16 passes through the through groove 15 of the movable frame 4 and is in threaded connection with the slider 6, and the screw rod 16 is connected to the clamping block 17 through a bearing, rotating the screw rod 16 at this time can drive the clamping block 17 to move upward along the slider 6, and separate the clamping block 17 from the toothed block 18 in the groove of the movable frame 4, releasing the limiting effect of the clamping block 17 and the toothed block 18, and then the telescopic frame 5 can be pushed to move, so that the telescopic frame 5 slides along the chute of the movable frame 4 through the sliders 6 at both ends; on the contrary, rotate the screw rod 16 in the reverse direction, drive the clamping block 17 to move downward, so that the clamping block 17 is butted against the toothed block 18, and at this time the telescopic frame 5 can be limited and fixed. At the same time, the method of manually pushing the telescopic frame 5 to move can avoid damage to the fabric caused by excessive pulling force when the telescopic frame 5 moves, and will not affect the normal tensioning effect of the fabric.

[0030] Refer to Figures 1 to 3 It can be seen that during use, rotate the screw rod 16 to drive the clamping block 17 to move, so that the clamping block 17 is separated from the toothed block 18. At this time, the fabric can be driven to move through the telescopic frame 5, so that the fabric is in a taut state and will not be damaged due to excessive pulling force.

[0031] In summary, when the present utility model is in use, the four corners of the fabric are fixed between the movable frame 4 and the telescopic frame 5 through the clamping blocks 7, and then the bidirectional lead screw 2 is rotated. A nut sleeve 3 is sleeved on the outer side of the bidirectional lead screw 2. One side of the nut sleeve 3 is connected to the movable frame 4, and the other side of the movable frame 4 is slidably connected to another set of frames 1. Under the cooperation of the bidirectional lead screw 2 and the nut sleeve 3, the two sets of movable frames 4 move away from each other, driving the telescopic frame 5 to expand and contract. At the same time, the screw 16 is rotated to separate the clamping block 17 from the toothed block 18, so that the telescopic frame 5 can slide along the movable frame 4. The fabric can be tightened through the cooperation of the movable frame 4 and the telescopic frame 5, thereby ensuring the normal sewing effect of the quilting machine. This is the usage feature of the fabric tensioning device of this quilting machine. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0032] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A fabric tensioning device for a quilting machine, comprising a frame (1) and clamping blocks (7), characterized in that, One side of a group of the frames (1) is connected through a bidirectional lead screw (2). A nut sleeve (3) is sleeved on the outer side of the bidirectional lead screw (2). One side of the nut sleeve (3) is connected with a movable frame (4) penetrating through the frame (1). A telescopic frame (5) is connected between two groups of the movable frames (4). Sliders (6) are installed at both ends of the telescopic frame (5). Four groups of clamping blocks (7) are symmetrically installed on one side of the telescopic frame (5) and the movable frame (4) respectively. A rotating rod (8) is connected through the top of the clamping block (7) by a rotating shaft. An arc-shaped block (9) is connected to the bottom of the rotating rod (8).

2. The fabric tensioning device of a quilting machine according to claim 1, characterized in that: A movable spring (10) is connected between one side of the rotating rod (8) and the clamping block (7). A sliding block (11) is connected to the side of the rotating rod (8) far away from the movable spring (10) through a sliding groove.

3. The fabric tensioning device of a quilting machine according to claim 2, characterized in that: A connecting rod (12) is connected to one side of the sliding block (11). A fixing block (13) is sleeved on the outer side of the connecting rod (12).

4. The fabric tensioning device of a quilting machine according to claim 3, characterized in that: A fixing rod (14) is installed on one side of a group of the fixing blocks (13). The other two groups of the fixing blocks (13) are installed on one side of the telescopic frame (5).

5. The fabric tensioning device of a quilting machine according to claim 1, characterized in that: A through groove (15) is formed through the top of a group of the movable frames (4). A screw rod (16) penetrating through the slider (6) is connected to the middle of the through groove (15).

6. The fabric tensioning device of a quilting machine according to claim 5, characterized in that: A clamping block (17) is installed at the bottom of the screw rod (16). A toothed block (18) is arranged between the bottom of the clamping block (17) and the groove of the movable frame (4).

7. The fabric tensioning device of a quilting machine according to claim 5, characterized in that: The screw rod (16) and the slider (6) are in threaded connection.

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