CN111206344A

CN111206344A - Punching device for pattern machine

Info

Publication number: CN111206344A
Application number: CN201910795243.1A
Authority: CN
Inventors: 陈中华
Original assignee: Changzhou Zhigu Electrical And Mechanical Technology Co ltd
Current assignee: Changzhou Zhigu Electrical And Mechanical Technology Co ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-05-29

Abstract

The invention discloses a punching device for a pattern machine, which is characterized in that: comprises an upper punch assembly and a lower punch assembly. The upper punch component comprises a punch head seat, a driving device, a guiding device, a punch seat and a punch pin. The driving device is arranged on the machine head seat, the driving device drives the punch seat to move up and down along a straight line through the guiding device, and the punching needle is detachably and fixedly connected to the punch seat and extends downwards. The lower die assembly includes a lower die cutter. The lower die cutter is arranged in a sewing bedplate of a machine head of the pattern sewing machine, and the upper surface of the lower die cutter is level to the upper surface of the sewing bedplate. The punching needle hole is provided with a cylindrical section, and the punching needle extends into the punching needle hole to form a shearing structure with the hole wall.

Description

Punching device for pattern machine

Technical Field

The invention relates to the technical field of sewing machines, in particular to a punching device for a pattern machine.

Background

The pattern sewing machine is sewing equipment used in the production process of sewing products such as bags, leather, shoes, hats, clothes and the like, can realize the high speed and high efficiency of the traditional manual pattern, and can realize the perfection of multilevel unified fusion which cannot be achieved by the manual pattern, thereby being widely applied to bag factories, leather products factories, shoe factories and garment processing factories. The basic working principle of the pattern sewing machine is that an X-direction and Y-direction driving mechanism is utilized to drive a sewing workpiece to move on a working platform of a sewing mechanism according to a preset route, and a sewing machine head of the sewing mechanism sews corresponding patterns on the sewing workpiece in the moving process. When the shoes and the hats are processed, sometimes round holes are needed to be punched on the shoes and the hats, the round holes on the clothes and the shoes are used for installing buttons and rivets, the round holes on the hats can be used for installing the rivets or used as air holes, when the round holes are used as the air holes, the locking edges (also called locking holes) are needed to be arranged around the holes, the cloth around the holes is prevented from being scattered, corresponding flower shapes can be sewn after the locking edges, and the effect of attractive decoration is achieved. At present, the common method is that a pattern sewing machine is used for buttonhole sewing, after the buttonhole sewing is finished, the buttonhole sewing machine is taken down from the pattern sewing machine and then taken to a corresponding punching machine for punching, and the buttonhole sewing machine is not easy to position and easy to punch, the punching quality cannot be guaranteed, and the efficiency is too low.

Disclosure of Invention

The invention aims to provide a punching device for a pattern machine, which has a simple structure and high efficiency.

The basic technical scheme for realizing the purpose of the invention is as follows: a punching device for a pattern machine is structurally characterized in that: comprises an upper punch assembly and a lower punch assembly. The upper punch component comprises a punch head seat, a driving device, a guiding device, a punch seat and a punch pin. The driving device is arranged on the machine head seat, the driving device drives the punch seat to move up and down along a straight line through the guiding device, and the punching needle is detachably and fixedly connected to the punch seat and extends downwards. The lower die assembly includes a lower die cutter. The lower die cutter is arranged in a sewing bedplate of a machine head of the pattern sewing machine, and the upper surface of the lower die cutter is level to the upper surface of the sewing bedplate. The punching needle hole is provided with a cylindrical section, and the punching needle extends into the punching needle hole to form a shearing structure with the hole wall.

The technical scheme based on the basic technical scheme is as follows: the driving device is a cylinder, a piston rod of the driving device extends downwards, and a Y-shaped cylinder joint is fixed on the lower end of the piston rod.

The technical scheme based on the corresponding technical schemes is as follows: the guiding device comprises a flange seat, a flange linear bearing and an optical axis guide rail. The flange seat is fixedly arranged in the machine head seat. The flange linear bearing is fixedly arranged on the flange seat, and the axis of the flange linear bearing is vertically arranged along the vertical direction. The optical axis guide rail is arranged in the flange linear bearing in a sliding mode in the up-down direction. The upper end of the optical axis guide rail is hinged to the Y-shaped cylinder joint, and the lower end of the optical axis guide rail extends out of the headstock. The punch seat is fixedly arranged at the lower end of the optical axis guide rail.

The technical scheme based on the corresponding technical schemes is as follows: the punch pin hole of the lower die cutter of the lower die assembly is also provided with a circular truncated cone section, and the circular truncated cone section is positioned below the cylindrical section and communicated with the cylindrical section.

The technical scheme based on the corresponding technical schemes is as follows: the front side and the rear side of the middle part of a lower die cutter of the lower die assembly are symmetrically provided with arched air suction grooves which penetrate through the upper part and the lower part of the lower die cutter. The middle part of the lower die cutter is provided with an air flow channel which penetrates through the front part and the rear part of the lower die cutter and is provided with a downward opening, and the punching pin hole and the air suction groove are communicated with the air flow channel.

The technical scheme based on the corresponding technical schemes is as follows: the lower punch assembly further comprises a lower cutter seat plate, a die cutter seat, a cutter seat cushion block and a gas pipe joint. The lower knife seat plate is horizontally and fixedly arranged on the front part of the lower part of the machine head in the left-right direction and is positioned at the lower side of a sewing bedplate of the machine head. The middle part of the front part of the sewing bedplate is provided with a die cutter seat hole which penetrates through the upper part and the lower part of the sewing bedplate. The lower cutter saddle plate is provided with an air pipe connector which penetrates through the upper part and the lower part of the lower cutter saddle plate, and the air pipe connector is screwed and fixed on the air pipe connector from bottom to top and is communicated with the air pipe connector in a sealing way. The tool apron cushion block is provided with a first through hole penetrating through the upper part and the lower part of the tool apron cushion block. The tool apron cushion block is fixedly arranged on the lower tool apron plate, and the first through hole is communicated with the air pipe connector of the lower tool apron plate in a sealing mode. The middle part of the die cutter seat is provided with a rectangular mounting hole with an upward opening, and the middle part of the die cutter seat is provided with a second through hole which penetrates through the die cutter seat from top to bottom and is communicated with the mounting hole. The die cutter seat is fixedly arranged on the cutter seat cushion block, and the second through hole of the die cutter seat is communicated with the first through hole of the cutter seat cushion block in a sealing mode. The die cutter seat is positioned in the die cutter seat hole of the sewing bedplate, and the upper surface of the die cutter seat is level with the upper surface of the sewing bedplate. The lower die cutter is fixed on the middle part of the mounting hole of the die cutter seat, the upper surface of the lower die cutter is level with the upper surface of the die cutter seat, and the airflow channel of the lower die cutter is communicated with the second through hole of the die cutter seat.

The technical scheme based on the corresponding technical schemes is as follows: the lower punch assembly further comprises a die cutter fixing block. The left side and the right side of the lower part of the lower die cutter are provided with clamping bosses protruding outwards. The die cutter fixing blocks are two, the two die cutter fixing blocks are respectively fixedly arranged on the left portion and the right portion in the mounting hole of the die cutter holder, and the two clamping bosses of the lower die cutter are respectively limited and fixed from the upper portion, so that the lower die cutter is fixed on the middle portion of the mounting hole of the die cutter holder.

The invention has the following beneficial effects: (1) the punching device for the pattern machine is simple in structure and is installed on the pattern machine when in use. The sewing machine is used for sewing the overlock and the pattern around the position to be punched, and the punched position is punched after sewing, so that the working efficiency and the overlock quality are greatly improved.

(2) The punching device for the pattern machine is provided with the guide device, so that the punching needle is ensured to move linearly up and down, and the damage caused by collision with the lower die cutter is avoided; drive through the cylinder, the action is rapid, is favorable to improving the incision roughness, punches a hole more roundly.

(3) The upper end of the optical axis guide rail of the punching device for the pattern machine is hinged and connected to the Y-shaped cylinder joint, so that the assembly requirement is favorably reduced, the assembly is convenient, and the production and assembly efficiency of equipment is improved.

(4) The lower die assembly of the punching device for the pattern machine performs air suction through the dust suction device communicated with the air pipe joint, so that corresponding suction is generated at the punching needle hole and the air suction groove of the lower die cutter, cloth can be better adsorbed, fixed and attached to the upper surface of the lower die cutter and kept flat, and the flatness of a cut is favorably improved. The washed cloth is sucked and collected by the dust suction device, the neatness of the working environment is greatly improved, and the pollution of the cloth scraps to equipment and the environment is avoided.

(5) The punching needle hole of the lower die assembly of the punching device for the pattern machine comprises a cylindrical section at the upper part and a circular table section at the lower part, and cloth is easy to fall off after being cut off and cannot be accumulated to cause blockage.

(6) The lower end of the punching needle of the punching device for the pattern machine is provided with the groove with the inverted V-shaped cross section penetrating through the two ends of the punching needle along the radial direction, so that the cloth is favorably tightened inwards in the punching process, the cutting is convenient, and the punching effect is ensured.

(7) The punching needle and the lower die cutter of the punching device for the pattern machine can be replaced, the requirements of holes with different sizes can be met, and the application range is wide.

Drawings

Fig. 1 is a schematic structural diagram of a punching device of the invention when applied to a pattern machine.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a schematic view as viewed from the upper right front of fig. 1.

Fig. 4 is a schematic structural view of an upper punch assembly of the punching apparatus.

Fig. 5 is a left side view of fig. 4.

Fig. 6 is a schematic view when viewed from the left front lower side of fig. 4.

Fig. 7 is a schematic view when viewed from the upper left rear side of fig. 4.

Fig. 8 is a schematic structural view of a lower die assembly of the punching apparatus.

Fig. 9 is a schematic view as viewed from the upper right front of fig. 8.

Figure 10 is a schematic view of the lower die assembly with the lower knife block removed.

Fig. 11 is a top view of fig. 10.

Fig. 12 is a schematic sectional view a-a in fig. 11.

Fig. 13 is a schematic view as viewed from the upper right front of fig. 10.

Fig. 14 is an enlarged schematic view of the lower die cutter as viewed from the front left upper side of fig. 10.

Fig. 15 is an enlarged schematic view of the lower die cutter as viewed from the right front lower side of fig. 10.

The reference numbers in the drawings are:

an upper punch component 1, a headstock 1-1,

a driving device 1-2, a Y-shaped cylinder joint 1-21,

1-3 parts of guiding device, 1-31 parts of flange seat, 1-32 parts of flange linear bearing, 1-33 parts of optical axis guide rail,

1-4 parts of a punch seat, wherein,

1-5 parts of punching needle, 1-51 parts of groove,

a lower punch component 2, a lower cutter seat plate 2-1,

2-2 parts of lower die cutter, 2-21 parts of punching needle hole, 2-22 parts of air suction groove, 2-23 parts of clamping boss, 2-24 parts of air flow channel,

a die holder 2-3, a second through hole 2-31,

a tool apron cushion block 2-4, a first through hole 2-41,

2-5 parts of a die cutter fixing block,

the air pipe connector is connected with the air pipe connectors 2-6,

the sewing machine comprises a pattern sewing machine 10, a machine head 10-1, a machine needle seat 10-11 and a sewing bedplate 10-12.

Detailed Description

In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. The orientation of the present invention is described according to the orientation shown in fig. 1, that is, the up-down and left-right directions shown in fig. 1 are the up-down and left-right directions described, and the side facing fig. 1 is the front side and the side facing away from fig. 1 is the rear side.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

It is to be understood that the terms "upper", "lower", "inner", "outer", and the like, indicate orientations or positional relationships based on the positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention or for simplifying the description, but do not indicate that a particular orientation must be present.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

(example 1)

Referring to fig. 1 to 15, the punching apparatus for a embosser of the present invention includes an upper punch assembly 1 and a lower die assembly 2.

Referring to fig. 1 to 7, the upper punch assembly 1 includes a punch head seat 1-1, a driving device 1-2, a guide device 1-3, a punch seat 1-4 and a punch pin 1-5. The headstock 1-1 is fixedly arranged on the front part of the machine head 10-1 of the pattern sewing machine 10. The driving device 1-2 is an air cylinder which is an SMC CQ2B32-50DMZ air cylinder, a piston rod of the air cylinder extends downwards, and a Y-shaped air cylinder joint 1-21 is fixed on the lower end of the piston rod. The guide device 1-3 comprises a flange seat 1-31, a flange linear bearing 1-32 and an optical axis guide rail 1-33. The flange seat 1-31 is fixedly arranged in the headstock 1-1. The flange linear bearings 1-32 are fixedly arranged on the flange seats 1-31, and the axes of the flange linear bearings are vertically arranged along the vertical direction. The optical axis guide rails 1-33 are slidably disposed in the flange linear bearings 1-32 in the up-down direction. The upper ends of the optical axis guide rails 1-33 are hinged to Y-shaped cylinder joints 1-21, the lower ends of the optical axis guide rails extend out of the headstock 1-1, and the optical axis guide rails 1-33 are driven by the driving device 1-2 to move up and down. The punch seat 1-4 is fixedly arranged on the lower end of the optical axis guide rail 1-33. The punching needle 1-5 is detachably and fixedly connected to the punch seat 1-4 and extends downwards. The lower end of the punching needle 1-5 is provided with a groove 1-51 with an inverted V-shaped cross section penetrating through the two ends along the radial direction, which is beneficial to inwards tightening the cloth in the punching process, is convenient for cutting and ensures the punching effect.

Referring to fig. 1 to 3 and 8 to 15, the lower die assembly 2 includes a lower die base plate 2-1, a lower die cutter 2-2, a die cutter base 2-3, a cutter base block 2-4, a die cutter fixing block 2-5, and a gas pipe joint 2-6.

The lower knife seat plate 2-1 is horizontally and fixedly arranged on the front part of the lower part of the machine head 10-1 along the left-right direction, is positioned at the lower side of a sewing bedplate 10-12 of the machine head 10-1 and is parallel to the sewing bedplate 10-12. The middle part of the front part of the sewing bedplate 10-12 is provided with a die cutter seat hole which penetrates through the upper part and the lower part of the sewing bedplate, and the die cutter seat hole is positioned in front of the machine needle seat 10-11. The lower cutter seat plate 2-1 is provided with an air pipe connector penetrating through the upper part and the lower part, and the air pipe connector 2-6 is screwed and fixed on the air pipe connector from bottom to top and is communicated with the air pipe connector in a sealing way. When in use, the air pipe joints 2-6 are communicated with the dust suction device through corresponding air pipes. The tool apron cushion block 2-4 is provided with a first through hole 2-41 penetrating through the upper part and the lower part of the tool apron cushion block. The tool apron cushion block 2-4 is fixedly arranged on the lower tool apron plate 2-1, and the first through hole 2-41 is communicated with an air pipe connector of the lower tool apron plate 2-1 in a sealing mode. The middle part of the die cutter holder 2-3 is provided with a rectangular mounting hole with an upward opening, and the middle part of the die cutter holder 2-3 is provided with a second through hole 2-31 which penetrates through the die cutter holder 2-3 from top to bottom and is communicated with the mounting hole. The die holder 2-3 is fixedly arranged on the holder cushion block 2-4, and the second through hole 2-31 is in sealed communication with the first through hole 2-41 of the holder cushion block 2-4. The die holder 2-3 is positioned in a die holder hole of the sewing bedplate 10-12, and the upper surface of the die holder hole is level with the upper surface of the sewing bedplate 10-12.

The middle part of the lower die cutter 2-2 is provided with a punching pin hole 2-21 penetrating through the upper part and the lower part. The punching holes 2-21 comprise a cylindrical section at the upper part and a circular table section at the lower part. The punching needle 1-5 is in clearance fit with the cylindrical section of the punching needle hole 2-21, and the diameter of the cylindrical section of the punching needle hole 2-21 is 0-0.6 mm (0.2 mm in the embodiment) larger than that of the punching needle 1-5. The diameter of the upper bottom of the circular table section is the same as that of the cylindrical section. The front side and the rear side of the middle part of the lower die cutter 2-2 are symmetrically provided with an arched air suction groove 2-22 which penetrates through the upper part and the lower part of the lower die cutter. The middle part of the lower die cutter 2-2 is provided with an air flow channel 2-24 which penetrates through the front part and the rear part of the lower die cutter and has a downward opening, and the punching needle hole 2-21 and the air suction groove 2-22 are communicated with the air flow channel 2-24.

Clamping bosses 2-23 protruding outwards are arranged on the left side and the right side of the lower portion of the lower die cutter 2-2. The two die cutter fixing blocks 2-5 are respectively fixedly arranged on the left part and the right part of the mounting hole of the die cutter holder 2-3, and the two clamping bosses 2-23 of the lower die cutter 2-2 are respectively limited and fixed from the upper part, so that the lower die cutter 2-2 is fixed on the middle part of the mounting hole of the die cutter holder 2-3, and the upper surface of the lower die cutter 2-2 is level with the upper surface of the die cutter holder 2-3. The air flow channel 2-24 of the lower die cutter 2-2 is communicated with the second through hole 2-31 of the die cutter seat 2-3. The punching needle hole 2-21 of the lower die cutter 2-2 is coaxial with the punching needle 1-5.

When the punching device of the pattern sewing machine is used: the periphery of the position to be punched is sewn by a pattern sewing machine, corresponding patterns are sewn after the sewing, and the position to be punched is sent to the upper part of a punching needle hole 2-21 of a lower die cutter 2-2 of a lower die assembly 2 after the sewing is finished. At the moment, air suction is carried out through a dust suction device communicated with the air pipe connector 2-6, so that corresponding suction is generated at the needle punching hole 2-21 and the air suction groove 2-22 of the lower die cutter 2-2, and the cloth can be better adsorbed, fixed and attached to the upper surface of the lower die cutter 2-2 and kept flat. Then the driving device 1-2 drives the punching needle 1-5 to extend into the punching needle hole 2-21 from top to bottom, a shearing structure is formed with the hole wall of the punching needle hole 2-21 to punch off the corresponding cloth, the punching is finished, and the punched cloth is sucked and collected by the dust suction device.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A punching device for a pattern machine is characterized in that: comprises an upper punch component and a lower punch component; the upper punch component comprises a punch head seat, a driving device, a guiding device, a punch seat and a punch pin; the driving device is arranged on the machine head seat, the driving device drives the punch seat to move up and down along a straight line through the guide device, and the punching needle is detachably and fixedly connected to the punch seat and extends downwards; the lower punch assembly comprises a lower die cutter; the lower die cutter is arranged in a sewing bedplate of a machine head of the pattern sewing machine, and the upper surface of the lower die cutter is level to the upper surface of the sewing bedplate; the punching needle hole is provided with a cylindrical section, and the punching needle extends into the punching needle hole to form a shearing structure with the hole wall.

2. The punching apparatus for a patterning machine according to claim 1, wherein: the driving device is a cylinder, a piston rod of the driving device extends downwards, and a Y-shaped cylinder joint is fixed on the lower end of the piston rod.

3. The punching apparatus for a patterning machine according to claim 2, wherein: the guide device comprises a flange seat, a flange linear bearing and an optical axis guide rail; the flange seat is fixedly arranged in the machine head seat; the flange linear bearing is fixedly arranged on the flange seat, and the axis of the flange linear bearing is vertically arranged along the vertical direction; the optical axis guide rail is arranged in the flange linear bearing in a sliding manner along the up and down direction; the upper end of the optical axis guide rail is hinged to the Y-shaped cylinder joint, and the lower end of the optical axis guide rail extends out of the headstock; the punch seat is fixedly arranged at the lower end of the optical axis guide rail.

4. A punching apparatus for a patterning machine according to any one of claims 1 to 3, characterized in that: the punch pin hole of the lower die cutter of the lower die assembly is also provided with a circular truncated cone section, and the circular truncated cone section is positioned below the cylindrical section and communicated with the cylindrical section.

5. A punching apparatus for a patterning machine according to any one of claims 1 to 3, characterized in that: the front side and the rear side of the middle part of a lower die cutter of the lower die assembly are symmetrically provided with an arched air suction groove which penetrates through the upper part and the lower part of the lower die cutter; the middle part of the lower die cutter is provided with an air flow channel which penetrates through the front part and the rear part of the lower die cutter and is provided with a downward opening, and the punching pin hole and the air suction groove are communicated with the air flow channel.

6. The punching apparatus for a patterning machine according to claim 5, wherein: the lower punch assembly also comprises a lower cutter seat plate, a die cutter seat, a cutter seat cushion block and a gas pipe joint; the lower knife seat plate is horizontally and fixedly arranged on the front part of the lower part of the machine head in the left-right direction and is positioned at the lower side of a sewing bedplate of the machine head; a die cutter seat hole penetrating through the upper part and the lower part of the middle part of the front part of the sewing bedplate is arranged; the lower cutter seat plate is provided with an air pipe connector which penetrates through the upper part and the lower part of the lower cutter seat plate, and the air pipe connector is screwed and fixed on the air pipe connector from bottom to top and is communicated with the air pipe connector in a sealing way; the tool apron cushion block is provided with a first through hole penetrating through the upper part and the lower part of the tool apron cushion block; the tool apron cushion block is fixedly arranged on the lower tool apron plate, and the first through hole is communicated with an air pipe connector of the lower tool apron plate in a sealing manner; the middle part of the die cutter seat is provided with a rectangular mounting hole with an upward opening, and the middle part of the die cutter seat is provided with a second through hole which penetrates through the die cutter seat from top to bottom and is communicated with the mounting hole; the die cutter seat is fixedly arranged on the cutter seat cushion block, and a second through hole of the die cutter seat is communicated with a first through hole of the cutter seat cushion block in a sealing manner; the mould knife seat is positioned in a mould knife seat hole of the sewing bedplate, and the upper surface of the mould knife seat is level to the upper surface of the sewing bedplate; the lower die cutter is fixed on the middle part of the mounting hole of the die cutter seat, the upper surface of the lower die cutter is level with the upper surface of the die cutter seat, and the airflow channel of the lower die cutter is communicated with the second through hole of the die cutter seat.

7. The punching apparatus for a patterning machine according to claim 6, wherein: the lower punch assembly also comprises a die cutter fixing block; clamping bosses protruding outwards are arranged on the left side and the right side of the lower part of the lower die cutter; the die cutter fixing blocks are two, the two die cutter fixing blocks are respectively fixedly arranged on the left portion and the right portion in the mounting hole of the die cutter holder, and the two clamping bosses of the lower die cutter are respectively limited and fixed from the upper portion, so that the lower die cutter is fixed on the middle portion of the mounting hole of the die cutter holder.