A stretching device for an automatic fabric laying machine

Abstract

The present invention relates to a stretching device for an automatic cloth spreading machine, comprising a bracket and a shell, wherein the upper end of the bracket is mounted with the shell, contact modules are symmetrically arranged on the left and right sides of the shell, a movable shell is arranged in the middle of the shell, an engagement module is cooperatively arranged between the contact module and the movable shell, the engagement module is mounted inside the shell, a linkage module is arranged inside the movable shell, a stretching module is arranged on the front side of the lower end of the linkage module, and a fixing component is mounted on the front end of the bracket. The present invention can solve the problem that during the use of the cloth spreading machine, as the cloth is laid layer by layer, the number of layers will also increase, which will lead to the problem of whether the cloth is flat, and the cloth will bulge after wrinkles appear during the laying process. As the cloth above continues to be laid, the bulge will affect the subsequent flat laying, causing the cloth laid at this position to also wrinkle, and the wrinkles will affect the flatness of the surrounding cloth.

Description

Technical Field

[0001] The present invention relates to the technical field related to cloth spreading machines, and in particular to a stretching device of an automatic cloth spreading machine. Background Art

[0002] The continuous development of science and technology has led to an increasingly high degree of automation in the field of clothing and textiles. In this field, the weaving, laying, cutting, processing, and production of fabrics are all achieved by corresponding machines. The development of these machines has greatly promoted the industrialization of clothing. In the process of laying fabrics, a spreading machine is needed. The spreading machine is also called a cloth spreading machine. It can spread the rolled fabric flat on the machine table. Currently, in the fabric cutting industry, before cutting the fabric, it must first be laid on the spreading machine's spreading table using a spreading machine. The working principle of the spreading machine is to align the rolled seamless fabric layer by layer on the cutting table for cutting.

[0003] During the use of the cloth laying machine, as the cloth is laid layer by layer, the number of layers will increase, and the problem that arises is whether the cloth is flat. During the laying process, the cloth will be wrinkled and bulges will appear. As the cloth above continues to be laid, the bulge will affect the subsequent flat laying, causing the cloth laid at this position to also wrinkle. The wrinkles affect the flatness of the surrounding cloth, causing errors between the actual cutting size and the specified cutting size during subsequent cutting.

[0004] Therefore, a stretching device of an automatic spreading machine is urgently needed to solve the above-mentioned defects. Summary of the Invention

[0005] 1. Technical Solution

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a stretching device of an automatic spreading machine, comprising a bracket and a shell, the upper end of the bracket is installed with the shell, contact modules are symmetrically arranged on the left and right sides of the shell, a movable shell is provided in the middle of the shell, an engaging module is provided between the contact module and the movable shell, and the movement directions of the contact module and the movable shell are consistent, the engaging module is installed inside the shell, a linkage module is provided inside the movable shell, a stretching module is provided on the front side of the lower end of the linkage module, and a fixing component is installed at the front end of the bracket.

[0007] The linkage module includes a linkage component, a linkage rod, a linkage belt, a linkage shaft, a pressing rod, a connecting gear, a rack rod, and a reset component. The front end inside the movable shell is rotatably connected to the upper end of the linkage component. The number of linkage components is two. A linkage rod is connected between the middle parts of the linkage components, and the end of the linkage rod is rotatably connected to the middle part of the linkage component. The linkage component and the linkage rod form a linkage structure, ensuring that the movement directions of the two linkage components are the same. A stretching module is installed at the lower end of the linkage component. A linkage belt is connected between the linkage component arranged at the rear and the linkage shaft. The linkage shaft is connected to the movable shell through a bearing. Connecting gears are symmetrically installed at the left and right ends of the linkage shaft. The connecting gears are meshed and matched with the rack rod. The lower end of the rack rod is connected to the reset component installed inside the movable shell. The reset component always maintains a tendency to push the rack rod upward. The upper end of the rack rod is in pressing and mating connection with the pressing rod. The pressing rod is horizontally slidably arranged on the movable shell, and the rear end of the pressing rod is installed inside the movable shell.

[0008] As a preferred technical solution, the contact module includes a movable block, a guiding rod, and a reset spring. The movable block is slidably arranged on the guiding rod. The guiding rod is installed inside the outer shell. A reset spring is connected between the movable block and the outer shell. A smooth layer is laid on the outer arc surface of the movable block. The setting of the smooth layer reduces the frictional resistance when contacting the moving module. The guiding rod guides the movement trajectory of the movable block, and the reset spring plays a role in resetting.

[0009] As a preferred technical solution, the meshing module includes a rack one, a gear one, a gear two, a gear three, a rotating shaft, and a rack two. The rack one installed on the movable block is meshed with the outer side of the gear one. The gear one is connected to the outer shell through a pin shaft. The inner side of the gear one is meshed with the gear two. The gear two is installed at the upper end of the rotating shaft. A gear three is installed in the middle of the rotating shaft rotatably matched with the outer shell. The gear three is meshed with the rack two. The rack two is installed on the outer side wall of the movable shell.

[0010] As a preferred technical solution, the specifications of the gear one and the gear three are the same, and the diameter of the gear one is larger than that of the gear two.

[0011] As a preferred technical solution, the linkage component includes a connecting shaft, an L-shaped frame, and a connecting column. The connecting shaft is connected to the movable shell through a bearing. L-shaped frames are symmetrically installed at the lower end of the connecting shaft. A connecting column is connected between the L-shaped frames. The connecting column is in rotational mating connection with the end of the linkage rod.

[0012] As a preferred technical solution, a linkage belt is connected between the linkage shaft and the connecting shaft arranged at the rear.

[0013] As a preferred technical solution, a rollable connecting roller is provided at the upper end of the rack bar. The connecting roller is in contact with the extrusion layer of the extrusion bar. The setting of the connecting roller reduces the extrusion difficulty. The extrusion layer is composed of a front-back connection between a horizontal layer and an inclined layer, and the inclined layer is a structure that gradually slopes downward from front to back.

[0014] As a preferred technical solution, the reset assembly includes a fixed plate and an elastic telescopic rod. The fixed plate is installed inside the movable shell. An elastic telescopic rod is connected between the fixed plate and the lower end of the rack bar. The rack bar is slidably arranged up and down on the movable shell, and the elastic telescopic rod always maintains an upward pushing trend on the rack bar.

[0015] As a preferred technical solution, the stretching module includes a reset telescopic rod, a hidden shell, an electric roller and a rubber layer. A reset telescopic rod is connected between the L-shaped frame and the hidden shell. A rotatable electric roller is arranged inside the hidden shell, and a rubber layer is sleeved outside the electric roller.

[0016] As a preferred technical solution, the fixing assembly includes an adjusting rod and a fixing clamp. An adjusting rod with an adjustable length is connected between the fixing clamp and the bracket.

[0017] II. Beneficial effects

[0018] 1. For the stretching device of an automatic cloth laying machine described in the present invention, the present application uses a rolling pulling method to pull the edge of the cloth outwards, so as to achieve the purpose of stretching, avoiding wrinkles on the cloth and affecting subsequent laying and cutting. Moreover, the stretching of the present application mainly relies on the resistance between the rubber layer and the cloth, and the elastic force of the reset telescopic rod is combined to make the rubber layer always contact the cloth during pulling, so as to perform resistance pulling. However, the elastic effect of the reset telescopic rod and the design of resistance pulling will not forcibly stretch the tightened cloth outwards, avoiding the tearing situation, and playing a role in protecting the cloth during the stretching process.

[0019] 2. For the stretching device of an automatic cloth laying machine described in the present invention, the design concept of a linkage structure is adopted among the contact module, the movable shell and the meshing module. Through the accelerated meshing of the meshing module, the movable blocks and the movable shell with different extended lengths are simultaneously retracted into the interior of the outer shell (the outer shell will not block the movement module of the cloth laying machine), and the simultaneous retraction ensures that when the movement module passes by, neither the movable blocks nor the movable shell will block its movement;

[0020] 3. The stretching device of the automatic cloth laying machine according to the present invention. The linkage module adopts the design concept of structural linkage to rotationally store the position of the stretching module. When the movable shell contracts outward, the stretching module also needs to be stored synchronously. To prevent the entry and exit of the stretching module from affecting the cloth layer, the storage trajectory of the stretching module set in this application is to rotate outward while moving away from the cloth, so that the stretching module is rotationally hidden as a whole. This storage method ensures that on the one hand, when the stretching module rotates outward, due to the existence of the reset expansion rod, the rubber layer during rotation still contacts the cloth and pulls it. On the other hand, when the stretching module resets, the stretching module rotates downward from above and thus rests on the upper surface of the cloth, and there will be no situation where due to the increase in the thickness of the cloth layer during linear movement, the stretching module cannot rest on the upper surface of the cloth layer again (before contacting the upper surface of the cloth layer, due to the elastic action of the reset expansion rod, the rubber layer is always in the lowest position, and when the upper surface of the cloth layer is higher than the lower end surface of the rubber layer, the rubber layer will be blocked by the edge of the cloth layer and thus cannot rest on the upper part of the cloth layer again). BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the drawings and embodiments.

[0022] Figure 1 is a schematic structural diagram of the present invention;

[0023] Figure 2 is a schematic structural diagram among the housing, contact module, movable shell, engagement module, linkage module, and stretching module of the present invention;

[0024] Figure 3 is the first cross-sectional view (viewed from top to bottom) among the housing, contact module, movable shell, engagement module, linkage module, and stretching module of the present invention;

[0025] Figure 4 is the second cross-sectional view (viewed from left to right) among the housing, contact module, movable shell, engagement module, linkage module, and stretching module of the present invention;

[0026] Figure 5 is a partial structural diagram among the movable shell, engagement module, linkage module, and stretching module of the present invention;

[0027] Figure 6 is the present invention Figure 2 partial enlarged view at X;

[0028] Figure 7 is a schematic position distribution diagram (viewed from top to bottom) between the present invention and the cloth laying machine;

[0029] Figure 8 is an installation schematic diagram of the present invention and the cloth laying machine. DETAILED DESCRIPTION OF THE INVENTION

[0030] Embodiments of the present invention will be described below with reference to the accompanying drawings. During this process, to ensure clarity and convenience of the description, we may exaggerate the widths of the lines or the sizes of the components in the drawings.

[0031] In addition, the terms used hereinafter are defined based on the functions in the present invention and may vary according to the intentions or conventions of users and operators. Therefore, these terms are defined based on the entire content of this specification.

[0032] As Figures 1 to 8 shown, a stretching device of an automatic fabric laying machine includes a bracket 1 and a housing 2, and is characterized in that: the housing 2 is installed at the upper end of the bracket 1, contact modules 3 are symmetrically arranged on the left and right inside the housing 2, a movable housing 4 is arranged in the middle of the housing 2, an engagement module 5 is arranged in cooperation between the contact modules 3 and the movable housing 4, and the movement directions of the contact modules 3 and the movable housing 4 are the same. The engagement module 5 is installed inside the housing 2, a linkage module 6 is arranged inside the movable housing 4, a stretching module 7 is arranged at the front side of the lower end of the linkage module 6, and a fixing component 8 is installed at the front end of the bracket 1.

[0033] The linkage module 6 includes a linkage component 61, a linkage rod 62, a linkage belt 63, a linkage shaft 64, a pressing rod 65, a connecting gear 66, a rack bar 67 and a reset component 68. The front end inside the movable housing 4 is rotatably connected to the upper end of the linkage component 61. The number of the linkage components 61 is two. A linkage rod 62 is connected between the middle parts of the linkage components 61, and the end of the linkage rod 62 is rotatably connected to the middle part of the linkage component 61. The linkage components 61 and the linkage rod 62 form a linkage structure, ensuring that the movement directions of the two linkage components 61 are the same. The stretching module 7 is installed at the lower end of the linkage component 61. A linkage belt 63 is connected between the linkage component 61 arranged at the rear side and the linkage shaft 64. The linkage shaft 64 is connected to the movable housing 4 through a bearing. Connecting gears 66 are symmetrically installed at the left and right ends of the linkage shaft 64. The connecting gears 66 are meshed and matched with the rack bar 67. The lower end of the rack bar 67 is connected to the reset component 68 installed inside the movable housing 4. The reset component 68 always maintains a tendency to push the rack bar 67 upward. The upper end of the rack bar 67 is in extrusion and fit connection with the pressing rod 65. The pressing rod 65 is horizontally slidably arranged on the movable housing 4, and the rear end of the pressing rod 65 is installed inside the movable housing 4.

[0034] During specific operation, the present application is installed on an existing fabric laying machine (the main function of which is to layer and align a roll of seamless fabric on a cutting table for cutting, and mainly layer the fabric by the back-and-forth movement of a moving module). Specifically, it is connected to the support feet under the cutting table in the fabric laying machine through a fixing component 8. At this time, the inner end of the outer shell 2 is aligned with the outer side wall of the cutting table but does not lean against it. After installation, the fabric laying machine is then started. While laying the fabric, the stretching module 7 pulls and stretches the laid fabric outward. When the moving module of the fabric laying machine touches the present application, the contact module 3 in the present application is extruded and moves outward, gradually retracting into the outer shell 2. And under the action of the meshing module 5, the movable shell 4 moves outward at an accelerated speed. During the movement of the movable shell 4, the extrusion between the extrusion rod 65 and the rack rod 67 causes the rack rod 67 to descend. With the cooperation of the rack rod 67 and the connecting gear 66, the linkage shaft 64 rotates. Driven by the linkage rod 62 and the linkage belt 63, the linkage assembly 61 drives the stretching module 7 to adjust its angle outward, making the stretching module 7 gradually hidden. When the contact module 3 is completely retracted, the movable shell 4 also accelerates and completely retracts. At this time, the stretching module 7 is hidden in the movable shell 4. At this time, the present application has no contact with the tabletop of the cutting table, ensuring the smooth passage of the moving module. And the stretching module 7 in the present application exits outward by adjusting its angle outward instead of withdrawing linearly (the lower end of the stretching module 7 gradually separates from the fabric and finally enters the interior of the movable shell 4). This is because the thickness of the fabric gradually increases during laying. The rotational hidden withdrawal method adopted by the present application avoids the situation that when the stretching module 7 is reset, due to the excessive thickness of the fabric, the height of the lower end of the stretching module 7 is lower than the upper end surface height of the fabric layer, resulting in the stretching module 7 directly squeezing the side edge of the fabric layer during reset, causing uneven stacking. The present application is dispersed on both sides of the cutting table, thereby performing regional stretching on the edges of the fabric, and being pressed and contracted outward in time when the moving module passes through, ensuring the smooth passage of the moving module. At the same time, it also facilitates the moving module to smoothly lay the fabric on the fabric layer (at this time, the movable shell 4 and the movable block 31 are extruded to the outside, which will not affect the laying of the fabric), and after passing through, it resets to stretch the edges of the fabric again.

[0035] In another embodiment provided by the present invention, further, the contact module 3 includes a movable block 31, a guiding rod 32, and a return spring 33. The movable block 31 is slidably arranged on the guiding rod 32. The guiding rod 32 is installed inside the outer shell 2. A return spring 33 is connected between the movable block 31 and the outer shell 2. A smooth layer is laid on the outer arc surface of the movable block 31. The setting of the smooth layer reduces the frictional resistance when contacting the moving module.

[0036] Specifically, the guiding rod 32 guides the movement track of the movable block 31, and the return spring 33 plays a role in resetting.

[0037] Further, the meshing module 5 includes a first rack 51, a first gear 52, a second gear 53, a third gear 54, a rotating shaft 55, and a second rack 56. The first rack 51 installed on the movable block 31 meshes with the outer side of the first gear 52. The first gear 52 is connected to the housing 2 through a pin shaft. The inner side of the first gear 52 meshes with the second gear 53. The second gear 53 is installed at the upper end of the rotating shaft 55. A third gear 54 is installed in the middle of the rotating shaft 55 that is rotationally matched with the housing 2. The third gear 54 meshes with the second rack 56. The second rack 56 is installed on the outer side wall of the movable housing 4. The first gear 52 and the third gear 54 have the same specifications, and the diameter of the first gear 52 is larger than that of the second gear 53.

[0038] Specifically, after being squeezed, the movable block 31 moves outward. During the movement, the first rack 51, the first gear 52, and the second gear 53 cooperate with each other, causing the second gear 53 to rotate faster than the first gear 52. The third gear 54 arranged coaxially with the second gear 53 cooperates with the second rack 56, thereby driving the movable housing 4 to move faster (the moving speed of the movable housing 4 is greater than that of the movable block 31). The setting of the meshing module 5 enables the movable blocks 31 and the movable housing 4 with different protruding lengths to retract into the housing 2 at the same time. The simultaneous retraction ensures that when the moving module passes, neither the movable block 31 nor the movable housing 4 will block its movement.

[0039] Further, the linkage assembly 61 includes a connecting shaft 611, an L-shaped frame 612, and a connecting column 613. The connecting shaft 611 is connected to the movable housing 4 by a bearing. Symmetrically arranged L-shaped frames 612 are installed at the lower end of the connecting shaft 611. A connecting column 613 is connected between the L-shaped frames 612. The connecting column 613 is rotationally connected to the end of the linkage rod 62. A linkage belt 63 is connected between the linkage shaft 64 and the connecting shaft 611 arranged at the rear.

[0040] Specifically, during the rotation of the connecting shaft 611, under the action of the linkage belt 63 and the linkage rod 62, the angles of the two linkage assemblies 61 change synchronously.

[0041] Further, a rotatable connecting roller is provided at the upper end of the rack bar 67. The connecting roller is in contact with the extrusion layer of the extrusion rod 65. The setting of the connecting roller reduces the extrusion difficulty. The extrusion layer is composed of a front-back connection between a horizontal layer and an inclined layer. The inclined layer is a structure that gradually slopes downward from front to back.

[0042] Specifically, when the extrusion rod 65 is in the initial position, the connecting roller is in contact with the horizontal layer. As the movable housing 4 moves, the connecting roller gradually approaches the inclined layer until they are in contact. At this time, under the extrusion of the inclined layer, the rack bar 67 descends.

[0043] Furthermore, the reset assembly 68 includes a fixed plate 681 and an elastic telescopic rod 682. The fixed plate 681 is installed inside the movable shell 4. The elastic telescopic rod 682 is connected between the fixed plate 681 and the lower end of the rack rod 67. The rack rod 67 is set on the movable shell 4 for sliding up and down. The elastic telescopic rod 682 always maintains an upward pushing tendency for the rack rod 67.

[0044] Furthermore, the stretching module 7 includes a reset telescopic rod 71, a hidden shell 72, an electric roller 73 and a rubber layer 74. The reset telescopic rod 71 is connected between the L-shaped frame 612 and the hidden shell 72. A rotatable electric roller 73 is provided inside the hidden shell 72, and a rubber layer 74 is provided on the outside of the electric roller 73.

[0045] Specifically, the rubber layer 74 is driven to rotate by the electric roller 73, thereby rolling and pulling the edge of the fabric outward, thereby achieving the purpose of stretching. The stretching of the present application mainly relies on the resistance pulling between the rubber layer 74 and the fabric. When the fabric is in a taut state, the elastically connected hidden shell 72 and the resistance pulling design will not force the fabric to continue to stretch outward, thereby avoiding tearing, and the rotation of the electric roller 73 ensures that the fabric is always stretched outward.

[0046] Furthermore, the fixing assembly 8 includes an adjusting rod 81 and a fixing clamp 82 , and an adjusting rod 81 with adjustable length is connected between the fixing clamp 82 and the bracket 1 .

[0047] Specifically, the length of the adjusting rod 81 is adjusted until the fixing clamp 82 reaches the clamping position, and the fixing clamp 82 is locked with the supporting foot in an embracing manner.

[0048] Working process:

[0049] Assembly: Connect the fixing assembly 8 to the support legs below the cutting table. At this time, the inner end surface of the housing 2 is aligned with the outer wall of the cutting table but not touching it. The rubber layer 74 is in contact with the cloth laying position of the cutting table under the action of the resetting telescopic rod 71.

[0050] Spreading: Start the spreading machine and spread the fabric layer by layer on the cutting table by moving the moving module back and forth;

[0051] Stretching: During the cloth laying process, the electric roller 73 drives the rubber layer 74 to rotate, thereby pulling the edge of the cloth outwards to play a stretching role. When stretching, when the moving module touches the movable block 31, the movable block 31 is extruded and moves outwards and gradually retracts into the housing 2. Under the action of the meshing module 5, the movable housing 4 moves outwards at an accelerated speed. During the movement of the movable housing 4, the extrusion between the extrusion rod 65 and the rack rod 67 causes the rack rod 67 to descend. With the cooperation of the rack rod 67 and the connecting gear 66, the linkage shaft 64 rotates, and under the drive of the linkage rod 62 and the linkage belt 63, the linkage assembly 61 drives the stretching module 7 to adjust its angle outwards, so that the stretching module 7 is gradually hidden. When the contact module 3 is completely retracted, the movable housing 4 also accelerates and completely retracts. At this time, the stretching module 7 is hidden in the movable housing 4, and the moving module passes smoothly. After the moving module moves away, the movable block 31, the movable housing 4, and the stretching module 7 are reset, and the stretching module 7 continues to stretch the edge of the cloth.

[0052] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A stretching device for an automatic fabric laying machine, comprising a bracket (1) and a housing (2), characterized in that: The upper end of the bracket (1) is provided with a housing (2). Inside the housing (2), contact modules (3) are symmetrically arranged on the left and right. In the middle of the housing (2), there is a movable housing (4). A meshing module (5) is cooperatively arranged between the contact module (3) and the movable housing (4), and the moving directions of the contact module (3) and the movable housing (4) are the same. The meshing module (5) is installed inside the housing (2). A linkage module (6) is arranged inside the movable housing (4). A stretching module (7) is arranged on the front side of the lower end of the linkage module (6). A fixing component (8) is installed at the front end of the bracket (1). The linkage module (6) includes a linkage component (61), a linkage rod (62), a linkage belt (63), a linkage shaft (64), a pressing rod (65), a connecting gear (66), a rack bar (67), and a reset component (68). The front end inside the movable housing (4) is rotatably connected to the upper end of the linkage component (61). The number of the linkage components (61) is two. A linkage rod (62) is connected between the middle parts of the linkage components (61), and the end of the linkage rod (62) is rotatably connected to the middle part of the linkage component (61). The lower end of the linkage component (61) is provided with a stretching module (7). A linkage belt (63) is connected between the linkage component (61) arranged at the rear side and the linkage shaft (64). The linkage shaft (64) is connected to the movable housing (4) through a bearing. Connecting gears (66) are symmetrically installed at the left and right ends of the linkage shaft (64). The connecting gears (66) are meshed and cooperated with the rack bar (67). The lower end of the rack bar (67) is connected to the reset component (68) installed inside the movable housing (4). The upper end of the rack bar (67) is in pressing and cooperating connection with the pressing rod (65). The pressing rod (65) is horizontally slidably arranged on the movable housing (4), and the rear end of the pressing rod (65) is installed inside the movable housing (4). The contact module (3) includes a movable block (31), a guiding rod (32), and a reset spring (33). The movable block (31) is slidably arranged on the guiding rod (32). The guiding rod (32) is installed inside the housing (2). A reset spring (33) is connected between the movable block (31) and the housing (2). A smooth layer is laid on the outer arc surface of the movable block (31). The meshing module (5) includes a rack one (51), a gear one (52), a gear two (53), a gear three (54), a rotating shaft (55), and a rack two (56). The rack one (51) installed on the movable block (31) is meshed with the outer side of the gear one (52). The gear one (52) is connected to the housing (2) through a pin shaft. The inner side of the gear one (52) is meshed with the gear two (53). The gear two (53) is installed at the upper end of the rotating shaft (55). The middle part of the rotating shaft (55) rotatably matched with the housing (2) is installed with a gear three (54). The gear three (54) is meshed with the rack two (56). The rack two (56) is installed on the outer side wall of the movable housing (4). The linkage assembly (61) includes a connecting shaft (611), an L-shaped frame (612), and a connecting column (613). The connecting shaft (611) is connected to the movable housing (4) by a bearing. Symmetrically mounted at the lower end of the connecting shaft (611) are L-shaped frames (612). A connecting column (613) is connected between the L-shaped frames (612). The connecting column (613) is rotatably connected to the end of the linkage rod (62).

2. The stretching device of an automatic fabric laying machine according to claim 1, characterized in that: The first gear (52) and the third gear (54) have the same specifications, and the diameter of the first gear (52) is larger than that of the second gear (53).

3. The stretching device of an automatic fabric laying machine according to claim 1, characterized in that: A linkage belt (63) is connected between the linkage shaft (64) and the connecting shaft (611) arranged at the rear side.

4. The stretching device of an automatic fabric laying machine according to claim 1, characterized in that: At the upper end of the rack bar (67) is provided a rotatable connecting roller, which is in contact with the extrusion layer of the extrusion rod (65). The extrusion layer is formed by connecting a horizontal layer and an inclined layer front and back, and the inclined layer is gradually inclined downward from front to back.

5. The stretching device of an automatic fabric laying machine according to claim 1, characterized in that: The reset assembly (68) includes a fixed plate (681) and an elastic telescopic rod (682). The fixed plate (681) is installed inside the movable housing (4). An elastic telescopic rod (682) is connected between the fixed plate (681) and the lower end of the rack bar (67). The rack bar (67) is slidably arranged up and down on the movable housing (4).

6. The stretching device of an automatic fabric laying machine according to claim 1, characterized in that: The stretching module (7) includes a reset telescopic rod (71), a hidden housing (72), an electric roller (73), and a rubber layer (74). A reset telescopic rod (71) is connected between the L-shaped frame (612) and the hidden housing (72). Inside the hidden housing (72) is provided a rotatable electric roller (73), and a rubber layer (74) is sleeved outside the electric roller (73).

7. The stretching device of an automatic fabric laying machine according to claim 1, characterized in that: The fixing assembly (8) includes an adjusting rod (81) and a fixing clamp (82). A length-adjustable adjusting rod (81) is connected between the fixing clamp (82) and the bracket (1).

Images