Machine door fixing device of circular knitting machine

Abstract

The utility model discloses a circular knitting machine door fixing device which comprises a circular knitting machine rack, two blocking doors are hinged to the lower portion of the circular knitting machine rack, sliding rods are hinged to the blocking doors, a mounting plate is fixedly connected to the portion, on the side portions of the blocking doors, of the circular knitting machine rack, rod sleeves are hinged to the mounting plate, and the sliding rods penetrate through the rod sleeves and are connected with the rod sleeves in a sliding mode. Clamping grooves are formed in the sliding rods, clamping blocks are slidably connected to the two sides of the rod sleeve correspondingly, one ends of the clamping blocks are located in the rod sleeve, a vertical rotating shaft is rotationally connected to the rod sleeve, the rotating shaft is fixedly connected with a cam, the ends, located outside the rod sleeve, of the clamping blocks are fixedly connected with connecting pieces, and the connecting pieces make contact with the cam. A spring is fixedly connected between the connecting piece and the outer wall of the rod sleeve. When the door of the circular knitting machine is pulled open, the sliding rod is driven to slide in the rod sleeve, when the clamping groove of the sliding rod moves to the position where the clamping block of the rod sleeve is located, the clamping block is embedded into the clamping groove of the sliding rod under the action of the spring, the sliding rod and the rod sleeve are fixed, and therefore the door is fixed, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the field of textiles, in particular to a door fixing device for a circular knitting machine. Background Art

[0002] The electronic jacquard circular knitting machine is a circular knitting machine that uses a computer to control the pattern. The yarn is fed into the cloth from the weft direction, so it is also called a weft knitting machine. The woven cloth is in a tubular shape, so the later finishing requires the process of slitting the cloth. It can be double-sided or single-sided.

[0003] The circular knitting machine is provided with a cloth discharge area. The cloth discharge area is equipped with a pulling and winding mechanism. The function of the mechanism is to pull the knitted fabric woven by the circular knitting machine out of the knitting area and wind (or fold) it into a certain package form. The cloth discharge area is provided with two gates. When taking the rolled cloth out of the cloth discharge area or when repairing the circular knitting machine, the two gates need to be opened. In order to prevent the gates from closing automatically when the workers are working, the workers will tie a rope between the gate and the raw yarn rack, pull the gate, and untie the rope when closing the door. This makes tying and untying the rope more troublesome. Utility Model Content

[0004] The utility model aims to provide a large circular knitting machine door fixing device, which has the advantage of being convenient for fixing and closing the opened fence door of the large circular knitting machine.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] The cam is elliptical in shape, and one end of the block is fixedly connected to the outer wall of the rod sleeve, and the other end is connected to the cam by a spring.

[0007] When the cam is rotated in the opposite direction, the two blocks move closer to each other under the action of the spring, the end of the block contacts with the rod body of the slide bar, and the spring is in a stretched state.

[0008] Preferably, the rod sleeve is fixedly connected to a protective shell, the cam, the block and the connecting piece are located inside the protective shell, and one end of the rotating shaft is located outside the protective shell.

[0009] The above technical solution is adopted to prevent the cam from rotating due to external influences, causing the block to bounce back into the slot and affect the closing of the door.

[0010] Preferably, a blocking piece is fixedly connected to the end of the sliding rod.

[0011] The above technical solution is adopted to prevent the sliding rod from being separated from the rod sleeve when the sliding rod moves along the rod sleeve.

[0012] Preferably, two guide rods are fixedly connected between the two side walls of the rod sleeve and the inner wall of the protective shell, and the two guide rods on the same side pass through the two ends of the connecting piece on the same side, and the connecting piece is slidably connected to the guide rods.

[0013] The above technical solution is adopted to increase the stability of the movement of the card block.

[0014] Preferably, the end of the rotating shaft outside the protective shell is fixedly connected to a knob.

[0015] The adoption of the technical solution makes it easier to rotate the shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of an embodiment;

[0017] Figure 2 A top view of an embodiment;

[0018] Figure 3 It is an overall schematic diagram of another perspective of the embodiment;

[0019] Figure 4 An enlarged schematic diagram of point A

[0020] Figure 5 Schematic diagram of the internal structure of the protective shell.

[0021] Figure numerals: 1, large circular knitting machine frame; 2, gate; 3, slide bar; 4, mounting plate; 5, rod sleeve; 6, rotating shaft; 7, block; 8, cam; 9, connecting piece; 10, spring; 11, protective shell; 12, guide rod. DETAILED DESCRIPTION

[0022] The following description is merely a preferred embodiment of the present invention, and the scope of protection is not limited to this embodiment. All technical solutions based on the principles of the present invention should be included in the scope of protection of the present invention. It should also be noted that improvements and modifications that do not depart from the principles of the present invention by ordinary skill in the art should also be considered within the scope of protection of the present invention.

[0023] See Figures 1 to 5 , a large circular knitting machine door fixing device, including a large circular knitting machine frame 1, two barrier doors 2 are provided in the cloth-discharging area below the large circular knitting machine frame 1, the barrier door 2 is hinged to the large circular knitting machine frame 1, the barrier door 2 is hinged with a slide bar 3, the large circular knitting machine frame 1 on the side of the barrier door 2 is fixedly connected with a mounting plate 4, the mounting plate 4 is hinged with a rod sleeve 5, the slide bar 3 passes through the rod sleeve 5, and is slidably connected to the rod sleeve 5, the end of the slide bar 3 is fixedly connected with a baffle, the slide bar 3 is provided with a card slot, the rod sleeve 5 is fixedly connected with a protective shell 11, and two guide rods 12 are fixedly connected between the two side walls of the rod sleeve 5 and the inner wall of the protective shell 11. The two guide rods 12 located on the same side A connecting piece 9 is sleeved on a guide rod 12, and the connecting piece 9 is slidingly connected to the guide rod 12. A spring 10 is fixedly connected between the connecting piece 9 and the outer wall of the rod sleeve 5. The connecting piece 9 is fixedly connected to a clamping block 7. Slide grooves are respectively provided on both sides of the rod sleeve 5. The two clamping blocks 7 are respectively embedded in the two slide grooves and are slidingly connected to the rod sleeve 5. The end of the clamping block 7 is located in the rod sleeve 5 and contacts the rod body of the slide rod 3. A vertical rotating shaft 6 is rotatably connected to the rod sleeve 5. A knob 13 is fixedly connected to the end of the rotating shaft 6. A cam 8 is fixedly connected to the rotating shaft 6. The cam 8 is elliptical. The cam 8 is located in the protective shell 11, and the connecting piece 9 contacts the cam 8.

[0024] Working principle: When the two gates 2 are opened, the gates 2 push the slide bar 3 to slide in the rod sleeve 5, and at the same time the slide bar 3 drives the rod sleeve 5 to rotate, and the slide bar 3 rotates relative to the gate 2 under the action of the rod sleeve 5. When the slot of the slide bar 3 moves to the position of the block 7 of the rod sleeve 5, the block 7 is embedded in the slot of the slide bar 3 under the action of the spring 10, fixing the slide bar 3 and the rod sleeve 5, thereby fixing the gate 2 to prevent it from closing automatically and affecting the workers' work. When the gate 2 is closed, the cam 8 is rotated through the rotating shaft 6, and the cam 8 generates a force on the two connecting pieces 9, pushing the two connecting pieces 9 to drive The two blocks 7 move away from each other, stretching the spring 10 to make the block 7 leave the slot of the slide bar 3. When the contact points of the cam 8 and the two connecting pieces 9 and the rotation center of the cam 8 are on the same straight line, the forces acting on the cam 8 are balanced. At the same time, the thrust of the cam 8 on the connecting piece 9 and the pulling force of the spring 10 on the connecting piece 9 are balanced, thereby making the connecting piece 9 stationary and preventing the connecting piece 9 from entering the slot again. Then, the gate 2 is pulled to close it. When the cam 8 is rotated in the opposite direction, the two blocks 7 approach each other under the action of the spring 10, the end of the block 7 contacts the rod body of the slide bar 3, and the spring 10 is in a stretched state.

Claims

1. A circular knitting machine door fixing device, comprising a circular knitting machine frame (1), wherein two blocking doors (2) are provided in a cloth discharging area below the circular knitting machine frame (1), and the blocking doors (2) are hinged to the circular knitting machine frame (1), characterized in that: The gate (2) is hinged with a slide rod (3), and the large circular machine frame (1) on the side of the gate (2) is fixedly connected with a mounting plate (4), and the mounting plate (4) is hinged with a rod sleeve (5), and the slide rod (3) passes through the rod sleeve (5) and is slidably connected to the rod sleeve (5), and a card slot is provided on the slide rod (3), and a slide slot is provided on both sides of the rod sleeve (5), and a card block (7) is slidably connected in the two slide slots, and one end of the card block (7) is located in the rod sleeve (5) and contacts with the rod body of the slide rod (3), and a vertical rotating shaft (6) is rotatably connected to the rod sleeve (5), and the rotating shaft (6) is fixedly connected with a cam (8), and the cam (8) is elliptical, and one end of the card block (7) located outside the rod sleeve (5) is fixedly connected with a connecting piece (9), and the connecting piece (9) contacts with the cam (8), and a spring (10) is fixedly connected between the connecting piece (9) and the outer wall of the rod sleeve (5).

2. A circular knitting machine door fixing device according to claim 1, characterized in that: The rod sleeve (5) is fixedly connected to a protective shell (11); the cam (8), the clamping block (7) and the connecting piece (9) are displaced inside the protective shell (11); and one end of the rotating shaft (6) is located outside the protective shell (11).

3. A circular knitting machine door fixing device according to claim 1, characterized in that: A blocking piece is fixedly connected to the end of the sliding rod (3).

4. A circular knitting machine door fixing device according to claim 2, characterized in that: Two guide rods (12) are fixedly connected between the two side walls of the rod sleeve (5) and the inner wall of the protective shell (11), and the two guide rods (12) on the same side respectively pass through the two ends of the connecting piece (9) on the same side, and the connecting piece (9) is slidably connected to the guide rods (12).

5. A circular knitting machine door fixing device according to claim 2, characterized in that: The end of the rotating shaft (6) outside the protective shell (11) is fixedly connected to a knob (13).

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