Large-stroke cutting machine presser foot lifting structure

Abstract

The utility model discloses a large-stroke presser foot lifting structure of a cutting machine. The problems that a presser foot of an existing cutting machine head is short in stroke and poor in using effect are mainly solved. The device is characterized by further comprising a guide rod (31), and the presser foot is mounted on the guide rod; the driving assembly is used for driving the guide rod to ascend and descend, the driving assembly comprises an end cover (41) and a containing cavity (42), part of the guide rod is arranged in the containing cavity, and at least part of the end cover is installed on the upper end face of the tool apron and protrudes out of the upper end face of the tool apron. According to the large-stroke presser foot lifting structure of the cutting machine, the end cover is externally arranged, so that the stroke of the presser foot is increased, and the large-stroke presser foot lifting structure is more beneficial to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewing equipment field, concretely relates to a big stroke's cutting machine lifts the structure of pressure foot. BACKGROUND

[0002] The head of cutting machine is mostly installed with punch device, and the punch needs to lift the pressure foot to realize the lifting, and the conventional pneumatic structure used to drive the pressure foot is directly arranged in the tool holder, so that the pressure foot stroke is short, and the use effect is poor. CONTENT OF UTILITY MODEL

[0003] In order to overcome the insufficient of background art, the utility model provides a big stroke's cutting machine lifts the structure of pressure foot, mainly solves the problem of short pressure foot stroke of the head of current cutting machine and poor use effect.

[0004] The technical scheme of the utility model provides,

[0005] A big stroke's cutting machine lifts the structure of pressure foot, including tool holder, the tool holder is equipped with movable installation cutter head and the pressure foot opposite to cutter head, still includes

[0006] Guide rod, the pressure foot is installed on the guide rod;

[0007] Driving assembly, the driving assembly is used to drive guide rod to lift, the driving assembly includes end cover and cavity, part guide rod is located in the cavity, at least part end cover is installed on the upper end surface of tool holder and protrudes from the upper end surface of tool holder.

[0008] The driving assembly drives the guide rod to move by the mode of hydraulic pressure or air pressure.

[0009] The cavity is located in the tool holder, and the guide rod located in the cavity is provided with a piston ring, and the circumferential outer wall of the piston ring is in contact with the inner wall of the cavity.

[0010] The guide rod includes an outer tube and an inner rod, and at least part of the inner rod is located in the outer tube, the pressure foot is installed at the bottom of the inner rod, and the piston ring is installed on the outer wall of the outer tube.

[0011] The outer tube is also provided with elastic members, and part of the elastic members protrude from the outer tube and press on the pressure foot.

[0012] The elastic member is a spring.

[0013] The tool holder is also provided with a connecting wall, the motor is installed on the connecting wall, and the motor is used to drive the cutter head to rotate.

[0014] The connecting wall is provided with a mounting groove, a flange bearing is arranged in the mounting groove, the motor comprises a driving shaft, and the flange bearing is mounted on the circumference of the driving shaft.

[0015] The motor is mounted on the connecting wall by screws.

[0016] The utility model discloses a large-stroke cutting machine lifting presser foot structure, through the outer part of end cover, the presser foot's stroke has been increased, and it is more favorable to use. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the schematic view of one embodiment of the utility model.

[0018] Figure 2 It is the schematic view of one embodiment of the utility model. Figure 1 It is the enlarged schematic view of A in the middle.

[0019] Figure 3 It is the sectional schematic view of one embodiment of the utility model.

[0020] Figure 4 It is the sectional schematic view of one embodiment of the utility model. Figure 3 It is the enlarged schematic view of B in the middle.

[0021] Figure 5 It is the partial three-dimensional schematic view of one embodiment of the utility model.

[0022] Figure 6 It is the partial sectional schematic view of one embodiment of the utility model.

[0023] Figure 7 It is the partial three-dimensional schematic view of one embodiment of the utility model. DETAILED DESCRIPTION

[0024] The utility model discloses a large-stroke cutting machine lifting presser foot structure, including the cutter holder 1, the cutter head 2 and the presser foot 3 of movable installation are equipped on the cutter holder, and the presser foot 3 is opposite to the cutter head and is equipped, still include guide rod 31, the presser foot is installed on the guide rod;

[0025] Driving assembly, the driving assembly is used for driving guide rod to lift, the driving assembly includes end cap 41 and cavity 42, part guide rod is equipped in the cavity, at least part end cap is installed on the upper end surface of cutter holder and protrudes on the upper end surface of cutter holder.End cap is the important part of the restriction guide rod activity stroke, and the length of the whole cavity is increased by moving up the end cap, and the guide rod is greatly lifted, and the presser foot stroke is increased by about 6mm through actual measurement, and the lifting is about 15%.

[0026] In the embodiment, the driving assembly drives the guide rod to move by hydraulic or pneumatic pressure.

[0027] In the embodiment, the cavity is arranged in the holder, and a piston ring 32 is arranged on the guide rod in the cavity, and the circumferential outer wall of the piston ring is in contact with the inner wall of the cavity. The piston ring is driven to move by the guide rod, and the two end chambers of the piston ring are respectively filled with air to drive the piston ring to move.

[0028] In the embodiment, the guide rod comprises an outer tube 311 and an inner rod 312, at least part of the inner rod is arranged in the outer tube, the presser foot is arranged at the bottom of the inner rod, and the piston ring is arranged on the outer wall of the outer tube. When the outer tube rises, the inner rod is also lifted by the stop ring 3120 arranged on the inner rod.

[0029] In the embodiment, the outer tube is further provided with an elastic member 313, part of the elastic member extends out of the outer tube and abuts against the presser foot. The stop ring is arranged in the outer tube and used for abutting against one end of the elastic member, and the other end of the elastic member abuts against the presser foot. The one end of the elastic member is arranged inside, and the stroke of the presser foot can be further increased, because the elastic member has a certain length even if it is compressed to the bottom.

[0030] In the embodiment, the elastic member is a spring.

[0031] In the embodiment, the holder is further provided with a connecting wall 12, and a motor 5 is arranged on the connecting wall, and the motor is used for driving the cutter head to rotate.

[0032] In the embodiment, the connecting wall is provided with a mounting groove 121, a flange bearing 122 is arranged in the mounting groove, and the motor comprises a driving shaft, and the flange bearing is arranged on the circumference of the driving shaft. The motor shaft is supported by the flange bearing, the service life of the motor is improved, and the risk of breakage of the motor shaft due to radial force is reduced.

[0033] In the embodiment, the motor is arranged on the connecting wall by screws. The motor is convenient to disassemble and assemble.

[0034] In the description of the utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the convenience of description of the utility model and simplification of the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as a limitation on the utility model.

[0035] Furthermore, the terms "first", "second", etc. are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an ordered sequence. Thus, features defined with "first", "second" etc. can include one or more of the features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly specified otherwise.

[0036] The embodiments described with reference to the drawings are exemplary and are intended to explain the present application, and should not be construed as limiting the present application. The embodiments should not be considered as limiting the present application, but any improvement made on the basis of the spirit of the present application should be within the scope of the present application.

Claims

1. A large-stroke cutting machine lifting presser foot structure, comprising a tool holder (1) provided with a movably mounted tool head (2) and a presser foot (3) arranged opposite the tool head, characterized in that: Also included A guide rod (31) is arranged on which the presser foot is mounted; A driving assembly is arranged for driving the guide rod to move up and down, the driving assembly comprises an end cover (41) and a cavity (42), part of the guide rod is arranged in the cavity, at least part of the end cover is mounted on the upper end surface of the knife holder and protrudes from the upper end surface of the knife holder.

2. A long-stroke cutting machine presser foot structure according to claim 1, characterized in that: The driving assembly drives the guide rod to move by hydraulic or pneumatic means.

3. The long-stroke cutting-machine presser foot structure according to claim 1, characterized in that: The cavity is arranged in the knife holder, a piston ring (32) is arranged on the guide rod arranged in the cavity, the circumferential outer wall of the piston ring is in contact with the inner wall of the cavity.

4. The long-stroke cutting-machine presser foot structure according to claim 3, characterized in that: The guide rod comprises an outer tube (311) and an inner rod (312), at least part of the inner rod is arranged in the outer tube, the presser foot is mounted at the bottom of the inner rod, and the piston ring is mounted on the outer wall of the outer tube.

5. The long-stroke cutting-machine presser foot structure according to claim 4, characterized in that: An elastic member (313) is further arranged in the outer tube, part of the elastic member protrudes from the outer tube and presses against the presser foot.

6. A long-stroke cutting-machine presser foot structure according to claim 5, characterized in that: The elastic member is a spring.

7. The long-stroke cutting-machine presser-foot structure according to claim 1, characterized in that: A connecting wall (12) is further arranged on the knife holder, a motor (5) is mounted on the connecting wall, the motor is used to drive the cutter head to rotate.

8. The long-stroke cutting-machine presser foot structure according to claim 7, characterized in that: An installation groove (121) is arranged on the connecting wall, a flange bearing (122) is arranged in the installation groove, the motor comprises a driving shaft, and the flange bearing is mounted on the circumferential surface of the driving shaft.

9. The long-stroke cutting-machine presser foot structure according to claim 8, characterized in that: The motor is mounted on the connecting wall by screws.

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