Constant-pressure cloth pressing device of spreading machine

Abstract

The invention discloses a constant-pressure cloth pressing device of a spreading machine. The constant-pressure cloth pressing device comprises a supporting seat, the two sets of supporting seats are symmetrically arranged, and the supporting seats are installed on a spreading bed of the spreading machine. A mounting plate is fixedly connected to the interior of the supporting seat; the cloth pressing frame comprises a cloth pressing rod, a cloth pressing connecting rod and a cloth pressing connecting plate; cloth pressing connecting plates are arranged at the two ends of the cloth pressing rod and the two ends of the cloth pressing connecting rod, and the cloth pressing rod and the cloth pressing connecting rod are located at the front ends and the rear ends of the cloth pressing connecting plates respectively. The tail part of the cloth pressing connecting rod is obliquely upwards provided with an extending part; the top of the extension part is rotationally connected with a first connecting arm through a first rotating shaft; the tail part of the first connecting arm is rotationally connected with the top of the triangular connecting plate through a second rotating shaft; the device is a pure mechanical mechanism, is low in price and simple in structure, only needs simple maintenance in the later period, and is low in maintenance cost; therefore, the cloth pressing frame can apply pressure in a constant direction and at a constant position to the cloth.

Description

Technical Field

[0001] The invention relates to the field of cloth stretching machines, in particular to a constant pressure cloth pressing device for cloth stretching machines. Background Art

[0002] In the process of garment making, cloth pulling and cloth cutting play a vital role. Only regular pieces can have a chance to sew clothes that meet the specifications. If the pieces are irregular, even the best sewing machines and the most outstanding sewing workers cannot sew high-quality clothes. Cloth pulling is the first step in garment making. Its quality determines the quality of the entire production. It is the foundation and the key, and it must not be ignored. Automated production equipment such as automatic cloth pulling machines and automatic cloth laying machines came into being.

[0003] In the process of pulling the cloth, the bottom layer of cloth needs to be pressed tightly by the cloth pressing mechanism to prevent the bottom layer of cloth from shifting during the process of pulling the cloth.

[0004] For example, the patent with the authorization announcement number CN116675040B previously applied by our company discloses a cloth-pulling machine for convenient cloth loading, which mainly includes an upper computer, a bed, a slide, a frame, a feeding mechanism, a tensioning force adjusting mechanism, a cloth clamping mechanism, and a cloth feeding mechanism. The upper computer is internally integrated with a control system and can also realize human-computer interaction. The bed can be used to place the stacked cloth and is also the base of the equipment. The slide is installed on the upper side of the bed and can drive the frame to move forward and backward to realize the cloth pulling action. The frame can move horizontally, and the cloth feeding roller and the cloth pressing roller installed inside it can realize the transportation of the cloth. The feeding mechanism is installed at the rear end of the frame and can realize the loading of the rolled cloth through the mechanical arm structure. The tensioning force adjusting mechanism is installed inside the frame and can dynamically adjust the tension of the cloth to make the tension of the cloth uniform during the entire stacking process.

[0005] In the above-mentioned patent, the cloth is pressed by a cloth clamping mechanism, which is fixedly installed at the front end of the bed and can achieve stable clamping of the cloth end and firm compression of the stacked cloth. The cloth feeding mechanism is installed on the slide stand and can feed the cloth end to the cloth clamping mechanism for clamping; in the above-mentioned patent, the cloth clamping mechanism mainly relies on the thrust of the slide and the cloth clamping jaw to provide compression for the cloth; however, the slide adopted in this scheme is often called an electric cylinder, linear module, etc. in industry, and is a high-precision part composed of a combination of a linear slide and a motor drive; not only is its price relatively high, but it also requires maintenance to ensure its stable operation.

[0006] Therefore, it is necessary for us to improve such a structure to overcome the above-mentioned defects. Summary of the invention

[0007] The object of the present invention is to provide a constant pressure cloth pressing device for a cloth stretching machine which is low-cost and does not require frequent maintenance, so as to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A constant pressure cloth pressing device of a cloth stretching machine, comprising a support seat; the support seat is provided with two groups and is symmetrically arranged with each other, wherein the support seat is installed on the bed of the cloth stretching machine; a mounting plate is fixedly connected inside the support seat; the cloth pressing frame comprises a cloth pressing rod, a cloth pressing connecting rod and a cloth pressing connecting plate; cloth pressing connecting plates are provided at both ends of the cloth pressing rod and the cloth pressing connecting rod, wherein the cloth pressing rod and the cloth pressing connecting rod are respectively located at the front and rear ends of the cloth pressing connecting plate; an extension portion is provided at the tail of the cloth pressing connecting rod obliquely upward; wherein the top of the extension portion is rotatably connected to a first connecting arm via a first rotating shaft; the tail of the first connecting arm is rotatably connected to the top of the triangular connecting plate via a second rotating shaft; and The lower end of the tail of the cloth pressing connecting plate is rotatably connected to the second connecting arm through a third rotating shaft, and the tail of the second connecting arm is rotatably connected to the second roller through a fourth rotating shaft; the front part of the lower end of the triangular connecting plate is also rotatably connected to the fourth rotating shaft; the tail of the lower end of the triangular connecting plate is rotatably connected to the first roller through a fifth rotating shaft; the front end of the mounting plate is also rotatably connected to the first roller through a fifth rotating shaft; an arc-shaped guide groove is also provided at the front end of the mounting plate, wherein the outer side of the second connecting arm is rotatably connected to the third roller through a sixth rotating shaft, wherein the third roller is slidably arranged in the arc-shaped guide groove; the tail of the mounting plate is also provided with a linear guide groove, wherein the first roller and the second roller are both slidably arranged in the linear guide groove.

[0010] Furthermore, the cloth pressing rod and the cloth pressing connecting rod are both stainless steel square tubes.

[0011] Furthermore, the first connecting arm is a round rod with holes at both ends.

[0012] Furthermore, the ends of the cloth pressing rod and the cloth pressing connecting rod are both provided with slots, and the inner side of the cloth pressing connecting plate is provided with a plug-in block adapted to the slot, and the plug-in block is plugged into the slot.

[0013] Furthermore, the ends of the cloth pressing rod and the cloth pressing connecting rod are fixedly connected to the plug-in block by bolts.

[0014] Furthermore, the tail of the second connecting arm is also fixedly connected to an extension arm, wherein the extension arm is connected to a counterweight rod; the counterweight rod is fixedly mounted on the extension arm via a mounting piece.

[0015] Furthermore, a plurality of first mounting holes are evenly spaced apart on the rear section of the extension arm; and second mounting holes are formed on both sides of the slot, and fixing screws are connected inside the first mounting holes and the second mounting holes.

[0016] Furthermore, an arc-shaped slot is provided at the bottom of the mounting piece.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This solution is a purely mechanical mechanism, which is cheap and simple in structure. It only requires simple maintenance in the later stage, and the maintenance cost is low.

[0019] This solution can make the cloth pressing frame basically in a horizontal state, and at the same position in the horizontal direction; it enables the cloth pressing frame to apply pressure in a constant direction (that is, basically vertically downward) and at a constant position to the cloth, and when in use, it is only necessary to manually lift the cloth pressing frame to carry out the cloth pressing operation of the second layer of cloth.

[0020] At the same time, in this solution, a counterweight rod is also provided, and the position of the counterweight rod can be adjusted, so that it can be conveniently adjusted according to the requirements of the cloth pressing weight of different cloths; BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the constant pressure cloth pressing device of the cloth stretching machine.

[0022] Figure 2 This is a front view of the constant pressure cloth pressing device of the cloth stretching machine.

[0023] Figure 3 It is a side view of the constant pressure cloth pressing device of the cloth stretching machine.

[0024] Figure 4 It is a top view of the constant pressure cloth pressing device of the cloth stretching machine.

[0025] Figure 5 for Figure 2 Sectional view along AA direction.

[0026] Figure 6 This is an exploded view of the constant pressure cloth pressing device of the cloth stretching machine.

[0027] Figure 7 for Figure 6 Schematic diagram of the structure of the middle part.

[0028] Figure 8 It is a schematic diagram of the structure of the extension arm in the constant pressure cloth pressing device of the cloth stretching machine.

[0029] Fig. 9 It is a schematic diagram of the second connecting arm of the constant pressure cloth pressing device of the cloth stretching machine when it is inclined and horizontal. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0031] This solution is fixedly installed on the bed.

[0032] See also Figure 1-8 , a constant pressure cloth pressing device of a cloth stretching machine, comprising a support seat 1;

[0033] The support base 1 is provided with two groups and is symmetrically arranged with each other, wherein the support base 1 is installed on the bed of the cloth spreading machine; the interior of the support base 1 is fixedly connected with a mounting plate 3;

[0034] The cloth pressing frame 2 includes a cloth pressing rod 201, a cloth pressing connecting rod 202 and a cloth pressing connecting plate 203; cloth pressing connecting plates 203 are provided at both ends of the cloth pressing rod 201 and the cloth pressing connecting rod 202, wherein the cloth pressing rod 201 and the cloth pressing connecting rod 202 are respectively located at the front and rear ends of the cloth pressing connecting plate 203;

[0035] Specifically, in this solution, the ends of the cloth pressing rod 201 and the cloth pressing connecting rod 202 are both provided with slots 204, the inner side of the cloth pressing connecting plate 203 is provided with a plug-in block 205 adapted to the slot 204, and the plug-in block 205 is plugged into the slot 204, and the ends of the cloth pressing rod 201 and the cloth pressing connecting rod 202 are fixedly connected to the plug-in block 205 by bolts;

[0036] In this solution, the cloth is pressed mainly by the gravity of the cloth pressing frame 2.

[0037] The tail of the cloth pressing connecting rod 202 is provided with an extension part 206 which is tilted upward; the top of the extension part 206 is rotatably connected to the first connecting arm 4 via the first rotating shaft 401; the tail of the first connecting arm 4 is rotatably connected to the top of the triangular connecting plate 7 via the second rotating shaft 402;

[0038] At the same time, the lower end of the tail of the cloth pressing connecting plate 203 is rotatably connected to the second connecting arm 5 through the third rotating shaft 501, and the tail of the second connecting arm 5 is rotatably connected to the second roller 503 through the fourth rotating shaft 502; the front part of the lower end of the triangular connecting plate 7 is also rotatably connected to the fourth rotating shaft 502; the tail of the lower end of the triangular connecting plate 7 is rotatably connected to the first roller 404 through the fifth rotating shaft 403;

[0039] Normally, the triangular connecting plate 7, the cloth-pressing connecting plate 203, the first connecting arm 4 and the second connecting arm 5 form a four-link structure. When the tail of the second connecting arm 5, i.e., the third rotating shaft 501, rotates, the cloth-pressing connecting plate 203 will be offset in the horizontal direction; that is, when the second connecting arm 5 is in a horizontal state, the cloth-pressing connecting plate 203 will be farthest from the tail of the second connecting arm 5 (at the fourth rotating shaft 502) in the horizontal direction (closest in the vertical direction at this time), and when the second connecting arm 5 is in an inclined state, the cloth-pressing connecting plate 203 will be closest in the horizontal direction (farthest in the vertical direction at this time). This situation will cause the cloth to be added layer by layer, and the cloth-pressing position (in the horizontal direction) will be offset.

[0040] Therefore, in this solution, the front end of the mounting plate 3 is further provided with an arc-shaped guide groove 301, wherein the outer side of the second connecting arm 5 is rotatably connected to a third roller 505 via a sixth rotating shaft 504, wherein the third roller 505 is slidably arranged in the arc-shaped guide groove 301;

[0041] The tail of the mounting plate 3 is also provided with a linear guide groove 302, wherein the first roller 404 and the second roller 503 are both slidably arranged in the linear guide groove 302;

[0042] When the present invention is put into use, in this solution, when the cloth pressing frame 2 is lifted, that is, when the second connecting arm 5 is lifted to be close to horizontal, at this time, due to the restriction of the arc-shaped guide groove 301, the first roller 404 and the second roller 503 will move to the rear side of the linear guide groove 302, and at this time, the second connecting arm 5 moves backward;

[0043] like Fig. 9 As shown, the displacement of the second connecting arm 5 moving backward is used to compensate for the displacement of the cloth pressing connecting plate 203 driven forward when the second connecting arm 5 is lifted up to near horizontal;

[0044] The cloth pressing frame is basically in a constant position in the horizontal direction; and since the two points at the lower end of the triangular connecting plate 7 (corresponding to the first roller 404 and the second roller 503) are both located in the linear guide groove 302, the triangular connecting plate 7 itself will not rotate at this time; and due to the action of the first connecting arm 4 at this time, the horizontal state of the cloth pressing frame 2 will not change;

[0045] At the same time, in this solution, in order to facilitate the adjustment of the pressure of the cloth pressing frame 2; the tail of the second connecting arm 5 is also fixedly connected to the extension arm 6, wherein the extension arm 6 is connected to the counterweight rod 601; the counterweight rod 601 is fixedly mounted on the extension arm 6 through the mounting member 602;

[0046] The rear section of the extension arm 6 is evenly spaced with a plurality of first mounting holes 603; at the same time, the bottom of the mounting member 602 is provided with an arc-shaped slot 604, and both sides of the slot 604 are provided with second mounting holes 605, and fixing screws 606 are connected in the first mounting hole 603 and the second mounting hole 605;

[0047] In this solution, the pressure applied by the cloth pressing frame 2 to the cloth can be adjusted by adjusting the position of the counterweight rod on the extension arm 6.

[0048] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "connection" and the like should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

Claims

1. A constant pressure cloth pressing device for a cloth stretching machine, comprising a support base; the support base is provided in two groups and is symmetrically arranged with each other, wherein the support base is installed on the bed of the cloth stretching machine; characterized in that: The interior of the support seat is fixedly connected to a mounting plate; the cloth pressing frame comprises a cloth pressing rod, a cloth pressing connecting rod and a cloth pressing connecting plate; cloth pressing connecting plates are provided at both ends of the cloth pressing rod and the cloth pressing connecting rod, wherein the cloth pressing rod and the cloth pressing connecting rod are respectively located at the front and rear ends of the cloth pressing connecting plate; an extension portion is provided at the tail of the cloth pressing connecting rod obliquely upward; wherein the top of the extension portion is rotatably connected to a first connecting arm via a first rotating shaft; the tail of the first connecting arm is rotatably connected to the top of the triangular connecting plate via a second rotating shaft; at the same time, the tail lower end of the cloth pressing connecting plate is rotatably connected to the third connecting arm via a third rotating shaft Two connecting arms, the tail of the second connecting arm is rotatably connected to the second roller via the fourth rotating shaft; the front lower end of the triangular connecting plate is also rotatably connected to the fourth rotating shaft; the tail lower end of the triangular connecting plate is rotatably connected to the first roller via the fifth rotating shaft; the front end of the mounting plate is also provided with an arc guide groove, wherein the outer side of the second connecting arm is rotatably connected to the third roller via the sixth rotating shaft, wherein the third roller is slidably arranged in the arc guide groove; the tail of the mounting plate is also provided with a linear guide groove, wherein the first roller and the second roller are both slidably arranged in the linear guide groove.

2. The constant pressure cloth pressing device of the cloth stretching machine according to claim 1, characterized in that: The cloth pressing rod and the cloth pressing connecting rod are both stainless steel square tubes.

3. The constant pressure cloth pressing device of the cloth stretching machine according to claim 1, characterized in that: The first connecting arm is a round rod with holes at both ends.

4. The constant pressure cloth pressing device of the cloth stretching machine according to claim 1, characterized in that: The ends of the cloth pressing rod and the cloth pressing connecting rod are both provided with slots, and the inner side of the cloth pressing connecting plate is provided with a plug-in block adapted to the slot, and the plug-in block is plugged into the slot.

5. The constant pressure cloth pressing device of the cloth stretching machine according to claim 4, characterized in that: The ends of the cloth pressing rod and the cloth pressing connecting rod are fixedly connected to the plug-in block through bolts.

6. The constant pressure cloth pressing device of the cloth stretching machine according to claim 1, characterized in that: The tail of the second connecting arm is also fixedly connected to an extension arm, wherein the extension arm is connected to a counterweight rod; the counterweight rod is fixedly mounted on the extension arm via a mounting piece.

7. The constant pressure cloth pressing device of the cloth stretching machine according to claim 6, characterized in that: The rear section of the extension arm is evenly spaced to form a plurality of first mounting holes; and second mounting holes are formed on both sides of the slot, and fixing screws are connected to the first mounting holes and the second mounting holes.

8. The constant pressure cloth pressing device of the cloth stretching machine according to claim 7, characterized in that: An arc-shaped slot is formed at the bottom of the mounting piece.

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