Clamping and fixing mechanism of serger

Abstract

The invention discloses a clamping and fixing mechanism of an overlocking machine, which comprises a sliding rail erected on a machine table, a mounting base plate is arranged on the sliding rail in a sliding manner, a left clamping arm and a right clamping arm are arranged on the mounting base plate, a first longitudinal sliding rail and a first telescopic cylinder are arranged on the mounting base plate between the left clamping arm and the right clamping arm, and a second longitudinal sliding rail and a second telescopic cylinder are arranged on the mounting base plate between the left clamping arm and the right clamping arm. A positioning pressing plate is installed at the lower end of a sliding block of the first longitudinal sliding rail. After the pillow is fixed left and right through the left clamping arm and the right clamping arm, the positioning pressing plate is controlled by the first telescopic cylinder to press the side edge, to be sealed, of the pillow, the pillow is prevented from loosening, and meanwhile the side edge, to be sealed, of the pillow is in a flat state; in addition, a laser calibration device located above the auxiliary clamping mechanism is arranged on the rear side of the sliding rail. A laser guide line emitted by the laser calibration device is projected on the workbench below, so that an employee can be guided to find an accurate pillow fixing position, the requirement on the operation proficiency of the employee is reduced, and the accuracy and efficiency of subsequent sealing and binding-off can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of sewing equipment, and in particular to a clamping and fixing mechanism of an overlock machine. Background Art

[0002] In the production of pillows, sealing sewing is the last step and also a very critical step. At present, in pillow production factories, pillows are generally sealed by workers operating sewing machines, which requires the sealing employees to be proficient in operation, otherwise the suture line will bend, affecting the yield rate of the pillow. In addition, in order to improve the aesthetics and sealing firmness of the pillow, the overlocking process is also added when the pillow is sealed to improve the quality of the pillow, which further increases the difficulty of sealing.

[0003] With the popularization of automated equipment, the disadvantages of manually sealing pillows have become particularly obvious, and there are obvious deficiencies in sealing efficiency and quality stability. Especially after the overlocking process is added to the sealing operation, the operation steps become complicated, and the requirements for employee proficiency in operation become higher. At the same time, the entire operation process also takes more time. In the current overlocking sewing equipment, the clamping and fixing mechanism structure is relatively simple, and when fixing the pillow sealing part, it mainly depends on the employee's operating proficiency, resulting in low pillow fixing efficiency and easy inaccurate fixing position, which has a great impact on the efficiency and effect of sealing and overlocking. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to provide a clamping and fixing mechanism for a dubbing machine. Employees only need to fix the side of the pillow to be sealed through a left clamping arm and a right clamping arm under the guidance of a laser calibration device. The operation is simple, the employees' operating proficiency is low, and the fixing effect is good.

[0005] In order to achieve the above object, the technical solution of the present invention is:

[0006] A clamping and fixing mechanism of a dubbing machine comprises a slide rail mounted on a machine platform, the slide rail is slidably provided with a mounting base plate, the mounting base plate is provided with a left clamping arm and a right clamping arm, the lower end of the left clamping arm is provided with a left clamping device, a first longitudinal slide rail and a first telescopic cylinder are provided on the mounting base plate between the left clamping arm and the right clamping arm, a positioning pressure plate is installed at the lower end of the slider of the first longitudinal slide rail, the telescopic end of the first telescopic cylinder extends downward and is fixedly connected to the positioning pressure plate; the right clamping arm comprises a fixing plate fixedly connected to the mounting base plate, the fixing plate is provided with a first transverse slide rail, a right clamping arm main body is slidably provided on the first transverse slide rail, the lower end of the right clamping arm main body is provided with a right clamping device, a second telescopic cylinder is also transversely provided on the fixing plate, and the telescopic end of the second telescopic cylinder is fixedly connected to the side of the right clamping arm main body.

[0007] Preferably, two groups of the first longitudinal slide rails are provided, and the sliders on the two groups of first longitudinal slide rails are fixedly connected to the positioning pressure plate; two groups of the first transverse slide rails are provided, and the two groups of first transverse slide rails are slidably connected to the right clamping arm body.

[0008] Preferably, a pad is provided below the clamping and fixing mechanism, and two ends of the pad are respectively fixedly connected to the lower end of the left clamping arm and the lower end of the right clamping arm body.

[0009] Preferably, the left clamping device includes a left telescopic cylinder and a left lower clamping plate fixedly connected to the left clamping arm, the telescopic end of the left telescopic cylinder extends downward and is fixedly provided with an upper left clamping plate, and the lower left clamping plate and the upper left clamping plate are combined to form a left clamp; the right clamping device includes a right telescopic cylinder and a right lower clamping plate fixedly connected to the right clamping arm body, the telescopic end of the right telescopic cylinder extends downward and is fixedly provided with an upper right clamping plate, and the lower right clamping plate and the upper right clamping plate are combined to form a right clamp.

[0010] Preferably, an auxiliary clamping mechanism is arranged on the machine platform at the rear side of the clamping and fixing mechanism, and the auxiliary clamping structure includes a fixed base plate arranged on the machine platform, a third telescopic cylinder is horizontally arranged on the fixed base plate, the telescopic rod of the third telescopic cylinder faces the clamping and fixing mechanism and is fixedly provided with a vertical mounting plate, a fourth telescopic cylinder is longitudinally arranged on the vertical mounting plate, a clamping plate is arranged on the telescopic end of the fourth telescopic cylinder, and at least two clamping claws are arranged on the clamping plate.

[0011] Preferably, a laser calibration device located above the auxiliary clamping mechanism is provided on the rear side of the slide rail.

[0012] The beneficial effects of the present invention are as follows: a clamping and fixing mechanism of a dubbing machine of the present invention comprises a slide rail mounted on a machine platform, a mounting base plate is slidably arranged on the slide rail, a left clamping arm and a right clamping arm are arranged on the mounting base plate, a first longitudinal slide rail and a first telescopic cylinder are arranged on the mounting base plate between the left clamping arm and the right clamping arm, a positioning pressure plate is installed at the lower end of the slider of the first longitudinal slide rail, and the telescopic end of the first telescopic cylinder extends downward and is fixedly connected to the positioning pressure plate; after the pillow is fixed on the left and right sides by the left clamping arm and the right clamping arm, the positioning pressure plate presses the side of the pillow to be sealed under the control of the first telescopic cylinder to prevent the pillow from loosening, and at the same time makes the side of the pillow to be sealed in a flat state; in addition, a laser calibration device located above the auxiliary clamping mechanism is arranged on the rear side of the slide rail; the laser calibration device emits a laser guide line projected on the workbench below, which can guide employees to find the accurate pillow fixing position, reduce the requirements for employees' operating proficiency, and also improve the accuracy and efficiency of subsequent sealing and dubbing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is a structural schematic diagram of the present invention;

[0014] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0015] Figure 3 It is a structural schematic diagram of another perspective of the present invention;

[0016] Figure 4 It is a structural schematic diagram of the auxiliary clamping mechanism of the present invention. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and implementation methods.

[0018] like Figure 1-Figure 4 The clamping and fixing mechanism of the overlocking machine shown in the figure comprises a slide rail 31 mounted on the machine table 1, a mounting base plate 32 is slidably arranged on the slide rail 31, a left clamping arm 33 and a right clamping arm 34 are arranged on the mounting base plate 32, a left clamping device 331 is arranged at the lower end of the left clamping arm 33, a first longitudinal slide rail 35 and a first telescopic cylinder 7 are arranged on the mounting base plate 32 between the left clamping arm 33 and the right clamping arm 34, a positioning plate 36 is installed at the lower end of the slider of the first longitudinal slide rail 35, and the telescopic end of the first telescopic cylinder 7 extends downward and is fixedly connected to the positioning plate 36. After the pillow is fixed left and right by the left clamping arm 33 and the right clamping arm 34, the positioning plate 36 presses the side of the pillow to be sealed under the control of the first telescopic cylinder 7 to prevent the pillow from loosening and keep the side of the pillow to be sealed in a flat state.

[0019] The right clamping arm 34 includes a fixing plate 341 fixedly connected to the mounting base plate 32, a first transverse slide rail 37 is arranged on the fixing plate 341, a right clamping arm body 342 is slidably arranged on the first transverse slide rail 37, a right clamping device 343 is arranged at the lower end of the right clamping arm body 342, and a second telescopic cylinder 71 is also arranged transversely on the fixing plate 341, and the telescopic end of the second telescopic cylinder 71 is fixedly connected to the side of the right clamping arm body 342. The right clamping arm 34 can be moved and adjusted in the horizontal direction, which has two advantages: 1. The pillow sealing and overlocking equipment can be applied to pillows of different specifications by adjusting the distance between the left clamping arm 33 and the right clamping arm 34; 2. After the two side corners of the pillow are fixed by the left clamping device 331 and the right clamping device 343, the second telescopic cylinder 71 is moved and adjusted to increase the distance between the right clamping arm body 342 and the left clamping arm 33, so that the pillow can be tightened, so that the side of the pillow to be sealed is in a straightened and flat state.

[0020] As a preferred solution, two groups of the first longitudinal slide rails 35 are provided, and the sliders on the two groups of the first longitudinal slide rails 35 are fixedly connected to the positioning plate 36. Two groups of the first transverse slide rails 37 are provided, and the two groups of the first transverse slide rails 37 are slidably connected to the right clamping arm body 342. Both the first longitudinal slide rail 35 and the first transverse slide rail 37 can adopt a double slide rail structure to make the sliding structure more stable and the sliding adjustment more precise. When necessary, the number of slide rails can be further increased or decreased to achieve better coordination between the various mechanisms.

[0021] A pad 38 is provided below the clamping and fixing mechanism 3, and the two ends of the pad 38 are fixedly connected to the lower end of the left clamping arm 33 and the lower end of the right clamping arm body 342, respectively. The left clamping device 331 includes a left telescopic cylinder 332 and a left lower clamp 333 fixedly connected to the left clamping arm 33, and the telescopic end of the left telescopic cylinder 332 extends downward and is fixedly provided with a left upper clamp 334, and the left lower clamp 333 and the left upper clamp 334 are combined to form a left clamp. The right clamping device 343 includes a right telescopic cylinder 344 and a right lower clamp 345 fixedly connected to the right clamping arm body 342, and the telescopic end of the right telescopic cylinder 344 extends downward and is fixedly provided with a right upper clamp 346, and the right lower clamp 345 and the right upper clamp 346 are combined to form a right clamp. The left upper clamp 334 is controlled by the left telescopic cylinder 332 to move up and down, and the left clamp also clamps and places the side corner of the pillow. Similarly, the right upper clamp 346 is controlled by the right telescopic cylinder 344 to move up and down, and the right clamp also clamps the side corner of the pillow. The pad 38 moves together with the clamping and fixing mechanism 3 during sewing, which can prevent the pillow from directly contacting the table of the machine 1 and ensure the stability of the sealing and overlocking.

[0022] An auxiliary clamping mechanism 8 is arranged on the machine 1 at the rear side of the clamping and fixing mechanism 3. The auxiliary clamping mechanism 8 includes a fixed bottom plate 81 arranged on the machine 1, a third telescopic cylinder 72 is arranged horizontally on the fixed bottom plate 81, a telescopic rod of the third telescopic cylinder 72 faces the clamping and fixing mechanism 3 and is fixedly provided with a vertical mounting plate 82, a fourth telescopic cylinder 73 is arranged longitudinally on the vertical mounting plate 82, a clamping plate 83 is arranged on the telescopic end of the fourth telescopic cylinder 73, and at least two clamping claws 84 are arranged on the clamping plate 83. In the initial state, the auxiliary clamping mechanism 8 is located at a rear position between the left clamping arm 33 and the right clamping arm 34 of the clamping and fixing mechanism 3, and the distance between the auxiliary clamping mechanism 8 and the clamping and fixing mechanism 3 can be adjusted by the third telescopic cylinder 72. When fixing the pillow, the left clamping arm 33 and the right clamping arm 34 are first used to fix the two side corners of the pillow to be sealed, and then the fourth telescopic cylinder 73 is used to control the clamping plate 83 to descend, so that the two clamping claws 84 cooperate with the table of the machine 1 to clamp the middle position of the pillow to be sealed to prevent the pillow from shifting when the positioning plate 36 is pressed down. After the positioning plate 36 presses the side of the pillow to be sealed, the clamping claws 84 of the clamping and fixing mechanism 3 are released, and the clamping and fixing mechanism 3 as a whole can be retracted backward.

[0023] The rear side of the slide rail 31 is provided with a laser calibration device 2 located above the auxiliary clamping mechanism 8. The laser calibration device 2 emits a laser guide line projected onto the workbench below, which can guide the employee to find the accurate pillow fixing position.

[0024] In the clamping and fixing mechanism of the overlocking machine, the telescopic cylinder can be an electric telescopic cylinder or a pneumatic cylinder, and the slide rail can be an electric slide rail. In addition, the coordinated work between the mechanisms is realized by the control of the main control device of the overlocking machine.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A clamping and fixing mechanism for an overlocking machine, characterized in that: The machine comprises a slide rail (31) mounted on a machine platform (1), a mounting base (32) being slidably mounted on the slide rail (31), a left clamping arm (33) and a right clamping arm (34) being mounted on the mounting base (32), a left clamping device (331) being mounted at the lower end of the left clamping arm (33), a first longitudinal slide rail (35) and a first telescopic cylinder (7) being mounted on the mounting base (32) between the left clamping arm (33) and the right clamping arm (34), a positioning pressing plate (36) being mounted at the lower end of the slider of the first longitudinal slide rail (35), and a telescopic end of the first telescopic cylinder (7) being downwardly extended. The right clamping arm (34) is extended and fixedly connected to the positioning pressure plate (36); the right clamping arm (34) includes a fixing plate (341) fixedly connected to the mounting base plate (32); a first transverse slide rail (37) is arranged on the fixing plate (341); a right clamping arm body (342) is slidably arranged on the first transverse slide rail (37); a right clamping device (343) is arranged at the lower end of the right clamping arm body (342); a second telescopic cylinder (71) is also transversely arranged on the fixing plate (341); the telescopic end of the second telescopic cylinder (71) is fixedly connected to the side of the right clamping arm body (342).

2. The clamping and fixing mechanism of the overlock machine according to claim 1, characterized in that: The first longitudinal slide rails (35) are provided in two groups, and the slide blocks on the two groups of first longitudinal slide rails (35) are fixedly connected to the positioning pressure plate (36). The first transverse slide rails (37) are provided in two groups, and the two groups of first transverse slide rails (37) are slidably connected to the right clamping arm body (342).

3. The clamping and fixing mechanism of the overlock machine according to claim 1 is characterized in that: A pad (38) is provided below the clamping and fixing mechanism (3), and two ends of the pad (38) are respectively fixedly connected to the lower end of the left clamping arm (33) and the lower end of the right clamping arm body (342).

4. The clamping and fixing mechanism of the overlock machine according to claim 1 is characterized in that: The left clamping device (331) comprises a left telescopic cylinder (332) and a left lower clamping plate (333) fixedly connected to the left clamping arm (33); the telescopic end of the left telescopic cylinder (332) extends downward and is fixedly provided with a left upper clamping plate (334); the left lower clamping plate (333) and the left upper clamping plate (334) are combined to form a left clamp; the right clamping device (343) comprises a right telescopic cylinder (344) and a right lower clamping plate (345) fixedly connected to the right clamping arm body (342); the telescopic end of the right telescopic cylinder (344) extends downward and is fixedly provided with a right upper clamping plate (346); the right lower clamping plate (345) and the right upper clamping plate (346) are combined to form a right clamp.

5. The clamping and fixing mechanism of the overlock machine according to claim 1, characterized in that: An auxiliary clamping mechanism (8) is arranged on the machine platform (1) at the rear side of the clamping and fixing mechanism (3), and the auxiliary clamping structure (8) comprises a fixed base plate (81) arranged on the machine platform (1), a third telescopic cylinder (72) is arranged horizontally on the fixed base plate (81), a telescopic rod of the third telescopic cylinder (72) faces the clamping and fixing mechanism (3) and is fixedly provided with a vertical mounting plate (82), a fourth telescopic cylinder (73) is arranged longitudinally on the vertical mounting plate (82), a clamping plate (83) is arranged on the telescopic end of the fourth telescopic cylinder (73), and at least two clamping claws (84) are arranged on the clamping plate (83).

6. The clamping and fixing mechanism of the overlock machine according to claim 5, characterized in that: A laser calibration device (2) located above the auxiliary clamping mechanism (8) is arranged on the rear side of the slide rail (31).

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