Protective device for quilting thick material cushion

Abstract

The invention relates to the field of quilting seam protection, in particular to a protective device for a quilting seam thick material cushion, which comprises four first roll shafts and a first protective assembly which are arranged on a quilting seam machine, and the first protective assembly comprises a first frame plate fixedly arranged on the quilting seam machine; the sliding rod is installed on the first frame plate in a sliding mode, a second roller shaft is rotatably installed on the sliding rod, and the sliding rod drives the second roller shaft to slide up and down so that the tension of the cloth can be adjusted; the two third frame plates are mounted on the quilting machine; the connecting plate is installed on the third frame plate, the connecting plate is of a telescopic structure, and two sets of clamping plates are installed on the connecting plate in a sliding mode; by arranging the clamping plates, the two ends of the quilting seam of the fabric are clamped, the fabric can be driven to move, the problems of smoothing, cutting and other operations before and after the quilting seam and fluctuation of the fabric between the two sets of clamping plates can be solved, the tension of the fabric between the clamping plates is kept stable, the needle breaking condition is reduced, and the protection effect is better.

Description

Technical Field

[0001] The invention relates to the technical field of quilting protection, in particular to a protection device for quilting thick material cushions. Background Art

[0002] Thick material cushions usually have sponge or cotton inside, and their outer layer is usually wrapped with fabrics such as wool fabrics. In order to prevent the sponge inside from being displaced or the cotton from being unevenly distributed during use, a quilting machine is required to quilt the outer and inner layers during the processing. During the quilting process, protective devices are required to prevent the quilting machine from breaking needles and accidentally injuring the operator.

[0003] A patent application with publication number CN114808289A discloses a bedding quilting machine, including a frame and a sewing device, and also includes: a loading device, a clamping device, a separation device and a unloading device arranged on the frame, the clamping device includes a tensioning structure, and the separation device includes a slitting knife; the tensioning structure plays a protective role, and the tensioning structure adjusts the tension of the fabric to avoid the fabric from becoming loose due to insufficient tension during subsequent quilting, or from being difficult to insert the needle and breaking the sewing needle due to excessive tension.

[0004] The tensioning structure in the above scheme is a protective device, which includes an adjusting block and a tensioning roller. The adjusting block moves up and down to drive the tensioning roller to move up and down synchronously, pressing the fabric to adjust the tension of the fabric. Since the outer layer of the fabric is thin and prone to wrinkles, it needs to be smoothed before sewing. After sewing, the above scheme uses a separation device to cut the fabric. The smoothing and cutting actions will cause fluctuations in the fabric, and the tensioning structure needs to be adjusted all the time. Due to the adjustment process, it cannot be guaranteed that the tension is always in a constant state, so the effect of preventing the quilting machine from breaking the needle is poor. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem of poor effect in preventing needle breakage in quilting machines in the prior art.

[0006] In order to solve the above technical problems, the present invention provides a protective device for quilting thick material mats, comprising four No. 1 rollers and a No. 1 protective assembly installed on a quilting machine, wherein the No. 1 roller is rotatably installed on the quilting machine, the No. 1 roller is divided into two parts and symmetrically distributed on both sides of the needle of the quilting machine, the No. 1 protective assembly is distributed between the two No. 1 rollers, and the No. 1 protective assembly is located in front of the needle of the quilting machine, and the No. 1 protective assembly comprises: a No. 1 frame plate fixedly installed on the quilting machine; a sliding rod slidably installed on the No. 1 frame plate, the sliding rod is rotatably installed with the No. 2 roller, and the sliding rod drives the No. 2 roller to slide up and down to adjust the tension of the fabric; two No. 3 frame plates installed on the quilting machine, the two No. 3 frame plates are respectively distributed on both sides of the needle of the quilting machine; a connecting plate installed on the No. 3 frame plate, the connecting plate adopts a telescopic structure, and two groups of clamps are slidably installed on the connecting plate, each group includes two clamps installed up and down, and the clamps are used to fix the fabric.

[0007] In one embodiment of the present invention, the protective device also includes a No. 2 protective component, which includes: a No. 2 frame installed on the quilting machine; two shells slidably installed on the No. 2 frame, and the shells are connected to exhaust ducts.

[0008] In one embodiment of the present invention, the third frame plate close to one side of the slide rod is slidably connected to the connecting plate, a mounting seat is slidably mounted on the connecting plate, and a first spring is installed between the mounting seat and the third frame plate.

[0009] In one embodiment of the present invention, the first protection component further includes two pressure sensors fixedly mounted on the connecting plate, and the pressure sensors are used to control the sliding rod to slide up and down after being triggered.

[0010] In one embodiment of the present invention, the second protection component further includes: a plurality of T-bars slidably mounted on the shell; and a knocking plate mounted at the lower end of the T-bars.

[0011] In one embodiment of the present invention, the No. 2 protection component also includes: a slide groove opened on the shell, the T-rod is slidably connected to the slide groove; a push rod installed on the shell for sliding up and down, the push rod is used to drive the T-rod to move up and down; and a No. 2 spring installed between the T-rod and the shell.

[0012] In one embodiment of the present invention, the slide groove is symmetrically divided into two groups, and the slide groove is in the shape of a right-angled triangle. The T-bar first moves downward on the slide groove, then slides left and right, and finally moves obliquely upward. A stopper is installed on the shell for sliding up and down, and a No. 3 spring is installed between the stopper and the shell. The stopper is used to block the sliding of the T-bar in the slide groove. The stopper is located within the moving range of the push rod, and a heating wire is arranged in the knocking plate.

[0013] In one embodiment of the present invention, a heating wire is arranged inside the knocking plate.

[0014] In one embodiment of the present invention, the plurality of T-bars and the knocking plates are divided into two groups, and the two groups of T-bars and the knocking plates are cross-distributed.

[0015] In one embodiment of the present invention, the knocking plate is slidably connected to the T-bar, a No. 4 spring is installed between the knocking plate and the T-bar, a button structure is installed on the knocking plate and the T-bar, a telescopic rod is fixedly installed on the shell, the telescopic rod is located within the moving range of the button structure, and the contact portion between the telescopic rod and the button structure is an inclined surface.

[0016] The above technical solution of the present invention has the following advantages compared with the prior art:

[0017] 1. The protective device for quilting thick material mats described in the present invention, by setting up clamping plates, clamps the two ends of the quilting fabric, which can not only drive the fabric to move, but also improve the smoothing and cutting operations before and after quilting, and solves the problem of fabric fluctuation between the two sets of clamping plates, so that the tension of the fabric between the clamping plates remains stable, reduces the occurrence of broken needles, and has a better protective effect.

[0018] 2. The protective device for quilting thick-material mats described in the present invention, by setting a No. 2 protective component, continuously knocks on the fabric and slides to the left and right sides. By knocking on the fabric, dust and thread ends on the surface of the fabric can be lifted up, and the suction pipe can be used to clean the fabric. At the same time, for mats with an inner layer of cotton or down, the cotton or down in the inner layer can be evenly distributed, ensuring that the thickness of the fabric is consistent at all times during quilting, reducing the probability of needle breakage. Sliding left and right can smooth the fabric to improve the formation of wrinkles, inconsistent thickness of the fabric, and the occurrence of needle breakage. In combination with the pressing structure, the knocking plate exerts less pressure on the fabric during the smoothing operation, and exerts greater pressure on the fabric during the knocking action, thereby avoiding the problem of fabric damage due to excessive pressure during the smoothing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0020] Figure 1 It is a stereoscopic diagram of the first protection component and the second protection component of the present invention;

[0021] Figure 2 It is a right side view of roller No. 1 of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the splint of the present invention;

[0023] Figure 4 It is a structural schematic diagram of a spring No. 1 of the present invention;

[0024] Figure 5 is a cross-sectional view of the housing of the present invention;

[0025] Figure 6 yes Figure 5 A partial enlarged view of the middle part;

[0026] Figure 7 It is a structural schematic diagram of the knocking plate of the present invention;

[0027] Explanation of the reference numerals in the drawings in the specification: 1. roller shaft No. 1; 2. protection assembly No. 1; 21. frame plate No. 1; 22. slide bar; 23. roller shaft No. 2; 24. frame plate No. 3; 25. connecting plate; 26. clamping plate; 27. mounting seat; 28. spring No. 1; 29. ​​pressure sensor; 3. protection assembly No. 2; 31. frame plate No. 2; 32. housing; 33. exhaust duct; 34. T-bar; 35. knock plate; 36. slide groove; 37. push rod; 38. spring No. 2; 39. stop block; 310. spring No. 3; 311. spring No. 4; 312. button structure; 313. telescopic rod. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0029] Reference Figure 1-Figure 4As shown, a protective device for quilting thick material mats of the present invention comprises four No. 1 rollers 1 and a No. 1 protective assembly 2 mounted on a quilting machine, wherein the No. 1 roller 1 is rotatably mounted on the quilting machine, the No. 1 roller 1 is divided into two parts and symmetrically distributed on both sides of the needle of the quilting machine, the No. 1 protective assembly 2 is distributed between the two No. 1 rollers 1, and the No. 1 protective assembly 2 is located in front of the needle of the quilting machine, and the No. 1 protective assembly 2 comprises: a No. 1 frame 21 fixedly mounted on the quilting machine; a No. 1 frame 21 slidably mounted on the No. 1 frame 21; A slide bar 22, on which a No. 2 roller 23 is rotatably mounted, and the slide bar 22 drives the No. 2 roller 23 to slide up and down to adjust the tension of the fabric; two No. 3 frames 24 mounted on the quilting machine, and the two No. 3 frames 24 are respectively distributed on both sides of the quilting machine needle; a connecting plate 25 mounted on the No. 3 frames 24, and the connecting plate 25 adopts a telescopic structure, and two groups of splints 26 are slidably mounted on the connecting plate 25, and each group includes two splints 26 mounted up and down, and the splints 26 are used to fix the fabric.

[0030] Specifically, the existing quilting machine plays a protective role by setting a tensioning structure to adjust the tension of the fabric. The tensioning components include a slide bar 22 and a second roller shaft 23. The slide bar 22 drives the second roller shaft 23 to move up and down to press the fabric to adjust the tension of the fabric. Since the outer layer of the fabric is thin and wrinkles are easy to occur, it needs to be smoothed before sewing. After sewing, the above-mentioned existing solution uses a separation device to cut the fabric. The smoothing and cutting actions will cause fluctuations in the fabric, and the tensioning structure needs to be adjusted all the time. Due to the adjustment process, it cannot be guaranteed that the tension is always in a constant state, so the effect of preventing the quilting machine from breaking the needle is poor.

[0031] In the present protective device, the connecting plate 25 adopts a telescopic structure to adapt to fabrics of different thicknesses. The installation of the No. 1 roller 1 ensures that when the No. 2 roller 23 adjusts the tension, the height of the fabric at the quilting position of the quilting machine remains unchanged. Figure 1In the figure, the side where the slide bar 22 is located is the front side, and the needle of the quilting machine is installed between the two No. 1 rollers 1 at the rear. The fabric passes between the upper and lower clamping plates 26, and one of the clamping plates 26 on the two groups of connecting plates 25 is controlled to clamp it, and the slide bar 22 is controlled to move downward until the fabric is opened to adjust the fabric tension and achieve the purpose of protection. Then, the clamping plate 26 is controlled to move backward to drive the fabric to move synchronously. This process can control the quilting machine to perform quilting. When the clamping plate 26 moves to the rear of the connecting plate 25, the quilting machine is quilted. , control another group of clamps 26 to clamp the fabric, the group of clamps 26 releases the fabric, and then control another group of clamps 26 to move backward, and the group of clamps 26 slides to the front of the connecting plate 25; by setting the clamps 26, the two ends of the quilting fabric are clamped, which can not only drive the fabric to move, but also improve the smoothing and cutting operations before and after quilting, and solve the problem of fabric fluctuation between the two groups of clamps 26, so that the tension of the fabric between the clamps 26 remains stable, reducing the occurrence of broken needles, and having a better protection effect.

[0032] like Figure 5 As shown, the protection device also includes a No. 2 protection component 3, which includes: a No. 2 frame 31 installed on the quilting machine; two shells 32 slidably installed on the No. 2 frame 31, and the shells 32 are connected to the exhaust ducts 33.

[0033] Specifically, the shell 32 is slidably connected to the second frame plate 31 to adapt to fabrics of different thicknesses. For some materials such as wool fabrics and polyester fibers as the outer layer, it is easy to adhere to impurities such as dust and thread ends. The existing device uses a scraper to push and scrape the surface of the fabric to remove dust and thread ends, thereby reducing the influence of dust on operators during work. However, this method has the problem of scratching the fabric; before work, the exhaust duct 33 is connected to the suction pump, and the shell 32 is controlled to slide to the vicinity of the fabric, and the suction pump is controlled to work, so that suction force is generated on the exhaust duct and the shell 32, which can suck away impurities such as thread ends and dust on the surface of the fabric, and compared with the push-scraping method, the damage to the fabric is less.

[0034] like Figure 3 and Figure 4 As shown, the third frame plate 24 close to the sliding rod 22 is slidably connected to the connecting plate 25, and a mounting seat 27 is slidably mounted on the connecting plate 25, and a first spring 28 is installed between the mounting seat 27 and the third frame plate 24.

[0035] like Figure 3 and Figure 4 As shown, the first protection component 2 also includes two pressure sensors 29 fixedly mounted on the connecting plate 25. The pressure sensors 29 are used to control the sliding rod 22 to slide up and down after being triggered.

[0036] Specifically, after the two groups of clamping plates 26 clamp the fabric, the control slide bar 22 moves downward, so that the front connecting plate 25 slides backward relative to the third frame plate 24 until the fabric is taut. At this time, the first spring 28 is stretched, and the pressure sensor 29 is installed on the connecting plate 25 and is located on both sides of the third frame plate 24. When the fabric moves between the two groups of clamping plates 26 where there are front and back wrinkles, the length of the fabric between the two groups of clamping plates 26 increases, so that the tension of the fabric is reduced, and the front connecting plate 25 moves forward under the action of the elastic force of the first spring 28, so that the fabric is tensioned, and the connecting plate 25 moves forward. The movement of 25 drives the pressure sensor 29 to move synchronously, so that the pressure sensor 29 on the rear side contacts the No. 3 frame plate 24, and the pressure sensor 29 is triggered, and the control slide bar 22 and the No. 2 roller 23 move downward synchronously, so that the fabric is taut, and the connecting plate 25 moves backward until it is not in contact with the pressure sensor 29. At this time, the tension of the fabric is consistent with the initial tension. By setting a slidable connecting plate 25, when the tension is adjusted, it is the fabric between the No. 2 roller 23 and the front clamping plate 26 that slides, so as to reduce the impact on the rear fabric, reduce the probability of needle breakage, and further improve the protection effect.

[0037] like Figure 5 and Figure 6 As shown, the second protection assembly 3 further includes: a plurality of T-bars 34 slidably mounted on the housing 32 ; and a knocking plate 35 mounted at the lower end of the T-bars 34 .

[0038] Specifically, during the suction process, the T-bar 34 and the knocking plate 35 are controlled to slide back and forth up and down to beat the upper and lower surfaces of the fabric, so that dust and thread ends on the surface of the fabric can be lifted up to improve the cleaning effect of the second protective component 3. At the same time, for cushions with an inner layer of cotton or down, the inner layer of cotton or down can be evenly distributed, ensuring that the thickness of the fabric is consistent at all places during quilting, reducing the probability of needle breakage and improving the protective effect.

[0039] like Figure 5 and Figure 6 As shown, the No. 2 protection component 3 also includes: a slide groove 36 opened on the shell 32, and the T-bar 34 is slidably connected to the slide groove 36; a push rod 37 installed on the shell 32 for sliding up and down, and the push rod 37 is used to drive the T-bar 34 to move up and down; a No. 2 spring 38 installed between the T-bar 34 and the shell 32.

[0040] like Figure 5 and Figure 6As shown, the slide groove 36 is symmetrically divided into two groups, and the slide groove 36 is in the shape of a right-angled triangle. The T-bar 34 first moves downward on the slide groove 36, then slides left and right, and finally moves obliquely upward. A stopper 39 is installed on the shell 32 to slide up and down. A No. 3 spring 310 is installed between the stopper 39 and the shell 32. The stopper 39 is used to block the sliding of the T-bar 34 in the slide groove 36. The stopper 39 is located within the moving range of the push rod 37, and a heating wire is arranged in the knocking plate 35.

[0041] Specifically, Figure 6 For example, in the initial state, the T-bar 34 contacts the left tip of the slide slot 36, and then the push rod 37 is controlled to move upward, so that the T-bar 34 slides obliquely upward, driving the knocking plate 35 to slide synchronously. At this time, the second spring 38 is compressed until the T-bar 34 slides to the top of the slide slot 36. At this time, the T-bar 34 pops up downward under the action of the elastic force of the second spring 38, driving the knocking plate 35 to pop up downward to knock on the fabric, and at the same time, the push rod 37 moves downward. During the downward movement of the push rod 37, it contacts the stopper 39 and pushes the stopper The block 39 moves downward, and the No. 3 spring 310 is compressed. When the block 39 is removed, the push rod 37 slides to the left under the action of the elastic force of the No. 2 spring 38 until it is located at the left tip of the slide groove 36, and this cycle is repeated to continuously knock on the fabric and slide to the left. The other half of the T-bar 34 and the knocking plate 35 are the same, continuously knocking on the fabric and sliding to the right, so as to achieve the knocking of the fabric and smooth the fabric at the same time, so as to improve the generation of wrinkles, inconsistent thickness of the fabric in different places, and the generation of broken needles.

[0042] like Figure 6 As shown, a heating wire is arranged inside the knocking plate 35 .

[0043] Specifically, by arranging a heating wire in the knocking plate 35, when working, the heating wire is controlled to start, so that the lower surface of the knocking plate 35 generates heat, so that the fabric can be ironed when smoothing, thereby improving the problem that wrinkles still exist in fabrics with deep creases after smoothing.

[0044] like Figure 5 and Figure 6 As shown, the plurality of T-bars 34 and the knocking plates 35 are divided into two groups, and the two groups of T-bars 34 and the knocking plates 35 are cross-distributed.

[0045] Specifically, during operation, one group of T-bars 34 and striking plates 35 works, and then another group works, alternating to improve the problem that when all striking plates 35 strike together, the position in contact with the fabric contains thread ends, which are pressed by the striking plates 35 and cannot be handled.

[0046] like Figure 6and 7 As shown, the knocking plate 35 is slidably connected with the T-bar 34, a No. 4 spring 311 is installed between the knocking plate 35 and the T-bar 34, a button structure 312 is installed on the knocking plate 35 and the T-bar 34, a telescopic rod 313 is fixedly installed on the shell 32, the telescopic rod 313 is located within the moving range of the button structure 312, and the contact portion between the telescopic rod 313 and the button structure 312 is an inclined surface.

[0047] Specifically, the button structure 312 adopts the existing press-to-combine and press-to-separate structure, which is similar to the press-type trash can cover. When the T-bar 34 drives the knocking plate 35 to knock downward, the T-bar 34 and the knocking plate 35 are combined through the press structure, and the No. 4 spring 311 is in a compressed state. Then the T-bar 34 moves downward, driving the knocking plate 35 and the press structure to move downward synchronously. During the movement, the press structure contacts the telescopic rod 313, and the press structure first generates a press, and then the telescopic rod 313 contracts. The press structure and the knocking plate 35 pass through the telescopic rod 313. At this time, the press structure has been separated and is elastically supported by the No. 4 spring 311. Under the action of force, the knocking plate 35 moves downward relative to the T-bar 34, and the T-bar 34 drives the knocking plate 35 to continue to move downward. When the knocking plate 35 contacts the fabric, relative sliding occurs between the T-bar 34 and the knocking plate 35, that is, pressing occurs. The pressing structure is combined, and the No. 4 spring 311 is compressed at this time. Then the T-bar 34 drives the knocking plate 35 to slide to the left and right sides to smooth the fabric, and this cycle is repeated. By setting the pressing structure, the knocking plate 35 exerts less pressure on the fabric during the smoothing operation, and exerts greater pressure on the fabric during the knocking action, thereby avoiding the problem of damage to the fabric due to excessive pressure during the smoothing operation.

[0048] Working principle: The fabric is passed between the upper and lower clamping plates 26, and one of the clamping plates 26 on the two groups of connecting plates 25 is controlled to clamp it, and the slide bar 22 is controlled to move downward, so that the front connecting plate 25 slides backward relative to the third frame plate 24 until the fabric is tight. At this time, the first spring 28 is stretched, and the pressure sensor 29 is installed on the connecting plate 25 and is located on both sides of the third frame plate 24. When the fabric moves between the two groups of clamping plates 26 where there are front and back wrinkles, the length of the fabric between the two groups of clamping plates 26 increases, so that the tension of the fabric is reduced, and the front connecting plate 25 moves forward under the action of the elastic force of the first spring 28, so that the fabric The material is tensioned, the connecting plate 25 moves forward, and the movement of the connecting plate 25 drives the pressure sensor 29 to move synchronously, so that the pressure sensor 29 on the rear side contacts the No. 3 frame plate 24, and the pressure sensor 29 is triggered, and the control slide bar 22 and the No. 2 roller 23 move downward synchronously, so that the fabric is taut, and the connecting plate 25 moves backward until it is not in contact with the pressure sensor 29. At this time, the tension of the fabric is consistent with the initial tension. Before work, the exhaust duct 33 is connected to the suction pump, and the control shell 32 slides to the vicinity of the fabric, and the suction pump is controlled to work, so that the exhaust duct and the shell 32 generate suction force, which can suck away impurities such as thread ends and dust on the surface of the fabric. Figure 6 For example, in the initial state, the T-bar 34 contacts the left tip of the slide slot 36, controlling the push rod 37 to reciprocate up and down, and the push rod 37 moves upward, so that the T-bar 34 slides obliquely upward, driving the knocking plate 35 to slide synchronously. At this time, the second spring 38 is compressed until the T-bar 34 slides to the top of the slide slot 36. At this time, the T-bar 34 pops up downward under the action of the elastic force of the second spring 38, driving the knocking plate 35 to pop up downward to knock on the fabric, and at the same time, the push rod 37 moves downward. During the downward movement of the push rod 37, it contacts the stopper 39. , and pushes the stopper 39 to move downward. At this time, the No. 3 spring 310 is compressed. When the stopper 39 is removed, the push rod 37 slides to the left under the elastic force of the No. 2 spring 38 until it is located at the left tip of the slide groove 36. This cycle is repeated to continuously knock on the fabric and slide to the left. The other half of the T-bar 34 and the knocking plate 35 are the same. They continuously knock on the fabric and slide to the right, so as to achieve the knocking of the fabric and smooth the fabric at the same time, so as to improve the generation of wrinkles, inconsistent thickness of the fabric in different places, and the generation of broken needles.

[0049] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A protective device for quilting thick material mats, comprising four No. 1 rollers (1) and a No. 1 protective assembly (2) mounted on a quilting machine, wherein the No. 1 rollers (1) are rotatably mounted on the quilting machine, and the No. 1 rollers (1) are divided into two parts and symmetrically distributed on both sides of the needle head of the quilting machine, characterized in that: The No. 1 protection component (2) is distributed between the two No. 1 rollers (1), and the No. 1 protection component (2) is located in front of the needle of the quilting machine. The No. 1 protection component (2) comprises: a No. 1 frame (21) fixedly mounted on the quilting machine; a sliding rod (22) slidably mounted on the No. 1 frame (21), a No. 2 roller (23) being rotatably mounted on the sliding rod (22), and the sliding rod (22) drives the No. 2 roller (23) to slide up and down to adjust the tension of the fabric; two No. 3 frames (24) mounted on the quilting machine, and the two No. 3 frames (24) are respectively distributed on both sides of the needle of the quilting machine; a connecting plate (25) mounted on the No. 3 frame (24), the connecting plate (25) adopts a telescopic structure, and two groups of clamping plates (26) are slidably mounted on the connecting plate (25), each group comprising two clamping plates (26) mounted up and down, and the clamping plates (26) are used to fix the fabric.

2. A protective device for a quilted thick material mat according to claim 1, characterized in that: The protective device also includes a No. 2 protective assembly (3), the No. 2 protective assembly (3) including: a No. 2 frame plate (31) mounted on the quilting machine; and two shells (32) slidably mounted on the No. 2 frame plate (31), the shells (32) being connected to exhaust ducts (33).

3. A protective device for a quilted thick material mat according to claim 2, characterized in that: The third frame plate (24) close to one side of the slide bar (22) is slidably connected to the connecting plate (25), a mounting seat (27) is slidably mounted on the connecting plate (25), and a first spring (28) is mounted between the mounting seat (27) and the third frame plate (24).

4. A protective device for a quilted thick material mat according to claim 3, characterized in that: The first protection component (2) further comprises two pressure sensors (29) fixedly mounted on the connecting plate (25), and the pressure sensors (29) are used to control the sliding rod (22) to slide up and down after being triggered.

5. A protective device for a quilted thick material mat according to claim 4, characterized in that: The second protection assembly (3) further comprises: a plurality of T-shaped rods (34) slidably mounted on the housing (32); and a knocking plate (35) mounted on the lower end of the T-shaped rods (34).

6. A protective device for a quilted thick material mat according to claim 5, characterized in that: The No. 2 protection component (3) also includes: a slide groove (36) provided on the shell (32), the T-bar (34) being slidably connected to the slide groove (36); a push rod (37) slidably installed on the shell (32), the push rod (37) being used to drive the T-bar (34) to move up and down; and a No. 2 spring (38) installed between the T-bar (34) and the shell (32).

7. A protective device for a quilted thick material mat according to claim 6, characterized in that: The slide groove (36) is symmetrically divided into two groups. The slide groove (36) is in the shape of a right triangle. The T-bar (34) first moves downward on the slide groove (36), then slides left and right, and finally moves obliquely upward. A stopper (39) is installed on the shell (32) to slide up and down. A third spring (310) is installed between the stopper (39) and the shell (32). The stopper (39) is used to block the sliding of the T-bar (34) in the slide groove (36). The stopper (39) is located within the moving range of the push rod (37).

8. A protective device for a quilted thick material mat according to claim 7, characterized in that: A heating wire is arranged inside the knocking plate (35).

9. A protective device for a quilted thick material mat according to claim 8, characterized in that: The plurality of T-shaped rods (34) and the knocking plates (35) are divided into two groups, and the two groups of T-shaped rods (34) and the knocking plates (35) are cross-distributed.

10. A protective device for a quilted thick material mat according to claim 9, characterized in that: The knocking plate (35) is slidably connected to the T-bar (34); a No. 4 spring (311) is installed between the knocking plate (35) and the T-bar (34); a button structure (312) is installed on the knocking plate (35) and the T-bar (34); a telescopic rod (313) is fixedly installed on the shell (32); the telescopic rod (313) is located within the moving range of the button structure (312); and the contact portion between the telescopic rod (313) and the button structure (312) is an inclined surface.

Images