Fabric positioning mechanism of pattern machine

Abstract

The utility model belongs to the technical field of pattern machines, and particularly relates to a fabric positioning mechanism of a pattern machine. The mechanism comprises a bottom plate, one side of the bottom plate is fixedly connected with a top plate through a support, and the top of the top plate is fixedly provided with an electric push rod; the clamping and leveling assembly comprises two sets of symmetrically-arranged moving plates, the bottoms of the moving plates are rotationally connected with two-way lead screws, the exteriors of the two sides of each two-way lead screw are in threaded connection with moving blocks, connecting plates are arranged below the moving plates, and first connecting rods are hinged between the connecting plates and the moving blocks; and the mounting base is arranged below the connecting plate, and the mounting base is rotationally connected with a pressing roller. According to the mechanism, a movable block and a connecting plate are matched with a first connecting rod in a hinged mode, so that a pressing roller can be pushed to move downwards to press cloth downwards so as to achieve automatic positioning, practicability is high, and the trouble problem caused by manual clamping and fixing of the cloth is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of pattern machines, and in particular relates to a fabric positioning mechanism of a pattern machine. Background Art

[0002] Office chairs refer to various chairs that are used for the convenience of work in daily work and social activities. Office chairs usually need to use pattern machines to process fabrics during the production process. Pattern machines usually refer to machines that can automatically embroider complex patterns on textiles. In the production process, especially in the production of furniture products such as office chairs, pattern machines are mainly used to make decorative or functional embroidery patterns. These machines can embroider various patterns according to preset programs, including complex geometric figures, characters or other decorative designs.

[0003] During the embroidery process, in order to prevent the fabric from moving, a special positioning mechanism is generally required. For example, the Chinese utility model patent with the announcement number CN219886324U discloses a fabric positioning device for a pattern machine, which can clamp fabrics of different shapes and sizes by matching a movable rod with a clamp with a locking bolt, and is not easy to loosen after clamping, thereby effectively ensuring the positioning effect.

[0004] However, when the device is actually used, the operator needs to adjust the clips one by one to achieve the positioning of the fabric, which is not only troublesome but also reduces the processing efficiency of the fabric.

[0005] In summary, there is a need for a pattern machine fabric positioning mechanism that can achieve automatic positioning. Utility Model Content

[0006] The utility model aims to provide a fabric positioning mechanism for a pattern machine. The mechanism utilizes the hinged cooperation of a moving block and a connecting plate with a first connecting rod, so as to push the pressing roller downward to press the fabric downward to achieve automatic positioning, which is highly practical and effectively avoids the troublesome problems caused by manually clamping and fixing the fabric.

[0007] The technical solution adopted by the utility model to solve the above problems is: a fabric positioning mechanism of a pattern machine, comprising:

[0008] A bottom plate, one side of the bottom plate is fixedly connected to a top plate via a bracket, and an electric push rod is fixedly installed on the top of the top plate;

[0009] A clamping and leveling assembly, the clamping and leveling assembly comprising two groups of symmetrically arranged moving plates, the bottom of the moving plates being rotatably connected with a bidirectional screw rod, both sides of the bidirectional screw rod being threadedly connected with moving blocks, a connecting plate being arranged below the moving plates, and a first connecting rod being hinged between the connecting plate and the moving blocks;

[0010] The mounting seat is arranged below the connecting plate, and a pressure roller is rotatably connected to the mounting seat.

[0011] A further preferred technical solution is that the clamping and leveling assembly further includes:

[0012] A vertical rod is fixedly connected to the top of the mounting seat and is slidably connected to the connecting plate. A spring is sleeved on the outside of the vertical rod, and two ends of the spring are respectively fixedly connected to the mounting seat and the connecting plate.

[0013] A further preferred technical solution is that guide rods are symmetrically fixedly connected to the top of the bottom plate, and the guide rods are slidably connected to the movable plate.

[0014] A further preferred technical solution is that a second connecting rod is hinged between the telescopic end of the electric push rod and the movable plate.

[0015] A further preferred technical solution is that a rack is symmetrically fixedly installed on one side of the top of the base plate, and one end of the bidirectional lead screw is coaxially fixedly connected with a gear, and the gear and the rack are meshingly connected.

[0016] A further preferred technical solution is that: a guide groove is further provided at the bottom of the movable plate, a guide block is fixedly connected to the top of the movable block, and the guide block is slidably connected to the guide groove.

[0017] A further preferred technical solution is that the surface of the pressure roller is provided with anti-slip textures.

[0018] A further preferred technical solution is that the thread directions of the bidirectional screw are arranged in opposite directions.

[0019] A further preferred technical solution is that the pressing rollers are arranged in two groups, and the bottoms of the two groups of pressing rollers are on the same horizontal line.

[0020] A further preferred technical solution is that a limit plate is fixedly installed on the top of the vertical rod.

[0021] In summary, the utility model has the following benefits:

[0022] 1. The utility model extends downward through the telescopic end of the electric push rod, and utilizes the hinge action between the telescopic end of the electric push rod and the moving plate and the second connecting rod, and the sliding cooperation between the moving plate and the guide rod, so that the two groups of moving plates can be pushed to move back to each other at the same time, and the meshing action of the gear and the rack is utilized during the movement, so that the bidirectional screw rod can be driven to rotate, and the rotation of the bidirectional screw rod drives the two groups of threaded moving blocks to move toward each other, and the moving block and the connecting plate are hinged with the first connecting rod, so that the pressing roller can be pushed downward to press the cloth downward to realize automatic positioning, which has strong practicality and effectively avoids the troublesome problems caused by manually clamping and fixing the fabric.

[0023] 2. In the process of positioning the fabric, when the pressure roller contacts the fabric, the movable plate continues to move, so that the two groups of pressure rollers can stretch the fabric to both sides, thereby achieving the purpose of automatically leveling the fabric, and effectively avoiding the problem that it is difficult to automatically level the fabric, which easily affects the processing of the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0025] Figure 2 This is a rear-view stereoscopic structural schematic diagram of the utility model;

[0026] Figure 3 for Figure 2 Enlarged structural diagram at A in the middle.

[0027] In the accompanying drawings, the components represented by each reference numeral are as follows: 1. base plate; 2. electric push rod; 3. guide rod; 4. second connecting rod; 5. limit plate; 101. moving plate; 102. bidirectional screw rod; 103. moving block; 104. connecting plate; 105. first connecting rod; 106. pressure roller; 107. vertical rod; 108. spring; 109. rack; 110. gear; 111. mounting seat. DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0029] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0030] Example:

[0031] Please combine Figure 1-3 , a fabric positioning mechanism of a pattern knitting machine of this embodiment includes:

[0032] A bottom plate 1, one side of the bottom plate 1 is fixedly connected to a top plate via a bracket, and an electric push rod 2 is fixedly installed on the top of the top plate;

[0033] The clamping and leveling assembly includes two groups of symmetrically arranged moving plates 101, the bottom of the moving plate 101 is rotatably connected with a bidirectional screw rod 102, and both sides of the bidirectional screw rod 102 are threadedly connected to moving blocks 103, a connecting plate 104 is arranged below the moving plate 101, and a first connecting rod 105 is hinged between the connecting plate 104 and the moving block 103 through a hinge, and a guide rod 3 is symmetrically fixedly connected to the top of the bottom plate 1, and the guide rod 3 is slidably connected to the moving plate 101, which can guide the horizontal movement of the moving plate 101, and the telescopic end of the electric push rod 2 A second connecting rod 4 is hinged between the end and the moving plate 101 through a hinge, so as to drive the two groups of moving plates 101 to move simultaneously. A rack 109 is symmetrically fixedly installed on one side of the top of the bottom plate 1. A gear 110 is coaxially fixedly connected to one end of the bidirectional screw rod 102, and the gear 110 is meshed with the rack 109. A guide groove is also provided at the bottom of the moving plate 101. A guide block is fixedly connected to the top of the moving block 103. The guide block is slidably connected to the guide groove, which can guide the movement of the moving block 103. The thread directions of the two groups of bidirectional screw rods 102 are oppositely arranged.

[0034] The mounting seat 111 is arranged below the connecting plate 104, and a pressure roller 106 is rotatably connected to the mounting seat 111. The surface of the pressure roller 106 is evenly provided with anti-skid patterns, which can increase the friction between the pressure roller 106 and the fabric to play an anti-skid role. The bottoms of the two groups of pressure rollers 106 are on the same horizontal line.

[0035] The clamping and leveling assembly also includes:

[0036] The vertical rod 107 is vertically fixedly connected to the four corners of the top of the mounting seat 111 and is slidably connected to the connecting plate 104. A spring 108 is sleeved on the outside of the vertical rod 107. The two ends of the spring 108 are respectively fixedly connected to the mounting seat 111 and the connecting plate 104, which can play a certain buffering role when positioning the fabric.

[0037] The implementation principle of the fabric positioning mechanism of a pattern machine in the embodiment of the present application is as follows: first, the fabric is placed on the top of the bottom plate 1, and then the electric push rod 2 is started, and the telescopic end of the electric push rod 2 is extended downward, and the telescopic end of the electric push rod 2 and the hinged effect between the movable plate 101 and the second connecting rod 4 are utilized, and the sliding cooperation between the movable plate 101 and the guide rod 3 can make it possible to push the two groups of movable plates 101 to move back to each other at the same time, and in the process of moving, the meshing effect of the gear 110 and the rack 109 is utilized to drive the bidirectional screw rod 102 to rotate, and the rotation of the bidirectional screw rod 102 drives the two groups of threaded movable blocks 103 to move toward each other, and the movable blocks 103 and the connecting plate 104 are hinged with the first connecting rod 105. Thereby, the pressure roller 106 can be pushed downward to press the fabric downward to achieve automatic positioning. When the pressure roller 106 contacts the fabric, with the continuous pushing of the electric push rod 2, the vertical rod 107 and the sliding cooperation of the connecting plate 104 are utilized to make the connecting plate 104 squeeze the spring 108, thereby playing a buffering role, so that after the fabric is clamped, the movable plate 101 can still be pushed to move. At the same time, in the process of positioning the fabric, when the pressure roller 106 contacts the cloth, due to the continued movement of the movable plate 101, the two groups of pressure rollers 106 can stretch the fabric to both sides, thereby achieving the purpose of automatically flattening the fabric. Finally, after the fabric processing is completed, the electric push rod 2 can be controlled to reset and the fabric can be removed.

[0038] In addition, a further improvement is that a limit plate 5 is fixedly installed on the top of the vertical rod 107 to prevent the vertical rod 107 from being separated from the connecting plate 104.

[0039] In addition, the same or similar element symbols are used to refer to the same or similar parts or steps in the drawings and descriptions as much as possible. The drawings are presented in simplified form and are not drawn to exact scale. For convenience and clarity only, directional terms such as top, bottom, left, right, upward, above, above, below, below, behind, and in front may be used with respect to the drawings. These and similar directional terms should not be construed as limiting the scope of the present disclosure in any way.

Claims

1. A fabric positioning mechanism for a pattern knitting machine, characterized in that: include: A bottom plate (1), one side of the bottom plate (1) being fixedly connected to a top plate via a bracket, and an electric push rod (2) being fixedly mounted on the top of the top plate; A clamping and leveling assembly, the clamping and leveling assembly comprising two groups of symmetrically arranged moving plates (101), the bottom of the moving plates (101) being rotatably connected to a bidirectional screw rod (102), both sides of the bidirectional screw rod (102) being threadedly connected to moving blocks (103), a connecting plate (104) being arranged below the moving plates (101), and a first connecting rod (105) being hinged between the connecting plate (104) and the moving block (103); A mounting seat (111), wherein the mounting seat (111) is arranged below the connecting plate (104), and a pressure roller (106) is rotatably connected to the mounting seat (111).

2. The fabric positioning mechanism of a pattern knitting machine according to claim 1, characterized in that: The clamping and leveling assembly also includes: A vertical rod (107), the vertical rod (107) being fixedly connected to the top of the mounting seat (111) and being slidably connected to the connecting plate (104), a spring (108) being sleeved on the outside of the vertical rod (107), and two ends of the spring (108) being fixedly connected to the mounting seat (111) and the connecting plate (104), respectively.

3. The fabric positioning mechanism of a pattern knitting machine according to claim 1, characterized in that: A guide rod (3) is symmetrically fixedly connected to the top of the bottom plate (1), and the guide rod (3) is slidably connected to the movable plate (101).

4. The fabric positioning mechanism of a pattern knitting machine according to claim 1, characterized in that: A second connecting rod (4) is hinged between the telescopic end of the electric push rod (2) and the moving plate (101).

5. The fabric positioning mechanism of a pattern knitting machine according to claim 1, characterized in that: A rack (109) is symmetrically fixedly mounted on one side of the top of the bottom plate (1), and a gear (110) is coaxially fixedly connected to one end of the bidirectional lead screw (102), and the gear (110) and the rack (109) are meshingly connected.

6. The fabric positioning mechanism of a pattern knitting machine according to claim 1, characterized in that: A guide groove is also provided at the bottom of the movable plate (101), and a guide block is fixedly connected to the top of the movable block (103), and the guide block is slidably connected to the guide groove.

7. The fabric positioning mechanism of a pattern knitting machine according to claim 1, characterized in that: The surface of the pressure roller (106) is provided with anti-slip textures.

8. The fabric positioning mechanism of a pattern knitting machine according to claim 1, characterized in that: The thread directions of the bidirectional screw rod (102) are arranged in opposite directions.

9. The fabric positioning mechanism of a pattern knitting machine according to claim 1, characterized in that: The pressing rollers (106) are arranged in two groups, and the bottoms of the two groups of pressing rollers (106) are located on the same horizontal line.

10. The fabric positioning mechanism of a pattern knitting machine according to claim 2, characterized in that: A limiting plate (5) is fixedly mounted on the top of the vertical rod (107).

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