CN100453280C - A cutter head assembly and a slitting cutter device - Google Patents

Abstract

The invention discloses a cutter head assembly and a slitting cutter device using the cutter head assembly. The cutter head assembly includes a blade, an axial pressure member capable of extending and contracting in the axial direction and a rubber-coated middle stop. The fixed shaft of the upper knife assembly of the slitting cutter device is provided with a cutter head assembly and an edge rubber stopper, and the lower knife assembly includes a middle knife and a rubber cover provided on the lower fixed shaft. Because the present invention adopts the cutter head assembly that includes the axial pressure piece that can be stretched along the axial direction, the blade in the upper knife assembly can be closely matched with the middle knife in the lower knife assembly, thereby solving the problem of the film being cut in the seam. The problem of burrs during cutting; the axial pressure member including the disc spring 208 has a simple structure and is easy to assemble; the pin is easier to slide in the groove than the spring, and the pin and the groove work together to make it easier to install and disassemble the tool; The edge rubber stopper can make the upper knife assembly and the lower knife assembly cooperate better.

Description

A cutter head assembly and a slitting cutter device

【Technical field】

The invention relates to a cutter head assembly and a slitting cutter device.

【Background technique】

At present, the knife device of the film slitting and shearing machine is divided into an upper knife assembly and a lower knife assembly, each of which is equipped with a plurality of middle knives and a plurality of rubber-coated stops, and the middle knives and rubber-covered stops are arranged at intervals. The upper middle knife and the upper rubber stop are respectively aligned with the lower rubber stop and the lower middle knife in the lower knife assembly. Due to the influence of machining accuracy and installation error, the multiple upper middle knives in the upper knife assembly and the multiple lower middle knives in the lower knife assembly cannot form a tight fit. The upper rubber cover and the lower rubber cover in the cutter device of the slitting shear are wider than the upper middle knife and the lower middle knife, which also forms a gap between the upper middle knife and the lower middle knife, which cannot form a tight fit. There is a tearing stage in the process of cutting the film by the shearing machine, which leads to burrs around the film. The presence of burrs on the edge of the film often has an adverse effect on subsequent processing.

【Content of invention】

The purpose of the present invention is to provide a cutter head assembly and a slitting cutter device that can make the upper and lower middle cutters fit closely.

A technical solution for realizing the above-mentioned purpose:

A cutter head assembly, including a blade 202, an axial pressure member that can be stretched in the axial direction, and a rubber-coated middle stop 207. The blade 202, the axial pressure member, another blade 202, and the rubber-coated middle stop 207 are sequentially threaded and fastened on the same axis.

The above-mentioned cutter head assembly is also provided with a shaft sleeve 301 on which the blade 202 and the axial pressure member are passed through and supported.

An axial pressure member includes a disc spring 208 and a spring seat 206 , disc springs 208 are installed on both sides of the spring seat 206 , and blades 202 are installed on the outside of each disc spring 208 .

Another kind of axial pressure piece comprises left and right connectors 203, left and right springs 205 and spring seats 206. The outer sides of the left and right connectors 203 are fixed with corresponding left and right blades 202. The inner sides of the left and right connectors 203 are provided with grooves 401, and the spring seats 206 Blind holes 601 are provided on both sides of the bottom, and the left and right springs 205 are compressed and correspondingly supported between the groove 401 and the blind holes 601 . The groove 401 on the connector 203 is arranged in an arc shape, and the two ends of the groove 401 are different in depth, showing a transition shape. The pin 204 is arranged in the groove 401, and the other end of the pin 204 is arranged on the spring 205 in the blind hole 601. withstand.

A slitting cutter device, comprising an upper knife assembly 114 and a lower knife assembly 113, the lower knife assembly 113 includes a middle knife 111 and a rubber cover 110 which are passed through the lower fixed shaft 107, and the fixed shaft 101 of the upper knife assembly 114 passes through The cutter head assembly 104 is fixed, the axial distance between the upper fixed shaft 101 and the lower fixed shaft 107 is smaller than the sum of the radii of the middle knife 111 and the blade 202, and the position of the middle knife 111 and the rubber-coated middle stop 207 are aligned up and down.

The width of the lagging middle stopper 207 in the upper knife assembly 114 is slightly narrower or the same as that of the middle knife 111 in the lower knife assembly 113 .

The sum of the widths of the blade 202 in the upper knife assembly 114 and the compressed axial pressure member is slightly narrower than the width of the lagging 110 in the lower knife assembly 113 .

In addition, an edge stopper 103 is provided outside the plurality of cutter head assemblies 104 in the upper cutter assembly 114 .

Since the present invention adopts the cutter head assembly comprising an axially retractable axial pressure member, the blade 202 in the upper knife assembly 114 can be closely matched with the middle knife 111 in the lower knife assembly 113, thereby solving the problem of the original thin film There is a problem of burrs during seam cutting; the axial pressure member including the disc spring 208 has a simple structure and is easy to assemble; the pin 204 is easier to slide in the groove than the spring 205, and the pin 204 and the groove 401 work together, It is more convenient to install and disassemble the cutter; the width of the rubber-coated middle stopper 207 in the upper knife assembly 114 is slightly narrower or the same as that of the middle knife 111 in the lower knife assembly 113, and the blade 202 in the upper knife assembly 114 and the compressed shaft The sum of the widths of the pressure parts is slightly narrower than the width of the rubber covering 110 in the lower knife assembly 113, so that the blade 202 can be closely matched with the middle knife 111 under the action of axial pressure; the edge rubber 103 can make the upper knife assembly 114 And the lower knife assembly 113 cooperates better.

【Description of drawings】

Figure 1 is a structural diagram of the cutter head assembly

Figure 2 is a structural diagram of another cutter head assembly

Figure 3 is a perspective view of the connector

Figure 4 is a perspective view of the spring seat

Figure 5 is a three-dimensional view of the lagging mid-block

Figure 6 is a perspective view of the blade

Figure 7 is a structural diagram of the slitting tool device

【Detailed ways】

Embodiment one:

A cutter head assembly, as shown in FIG. 1 , includes a blade 202, an axial pressure member that can expand and contract in the axial direction, and a rubber-coated middle stop 207 with a shaft sleeve 301 in the axial direction. The diameter of the axial pressure member is smaller than that of the blade 202 The diameter of the blade 202 and the axial pressure member are passed through and supported on the sleeve 301, and the rubber-covered middle stop 207 is fixed on the upper fixed shaft 101. The axial pressure member includes two disc springs 208 and a spring seat 206 , and the blade 202 , the disc spring 208 , the spring seat 206 , the disc spring 208 and the blade 202 pass through the sleeve 301 in sequence.

Embodiment two:

Another cutter head assembly, as shown in Figure 2, includes a blade 202, an axial pressure member that can expand and contract in the axial direction, and a rubber-coated middle stop 207 with a shaft sleeve 301 in the axial direction. The diameter of the axial pressure member is smaller than that of the blade 202, the blade 202 and the axial pressure member are supported on the bushing 301 through the sleeve, and the rubber-coated middle stop 207 is fixed on the upper fixed shaft 101. This axial pressure piece comprises two connecting pieces 203, eight springs 205, eight pins 204, spring seat 206, the blade 501 of blade 202 is acute angle, and is fixed on the connecting piece 203 by screw 201, the other of connecting piece 203 There are four arc-shaped grooves 401 on one side, and the two ends of the grooves 401 are different in depth and are in a transitional shape. There are four assembly holes 402 on the outer cylindrical surface 403 of the connector 203, and the two sides of the spring seat 206 are provided with 4 A blind hole 601, one end of the pin 204 is arranged in the groove 401, and the other end is supported by one end of the spring 205 arranged in the blind hole 601, the blade 202, the connector 203, the spring seat 206, the connector 203, and the blade 202 Wear sleeves and support in the shaft sleeve 301 in order.

Embodiment three:

The slitting knife device of the present invention, as shown in FIG. 7 , includes a lower knife assembly 113 and an upper knife assembly 114 . Wherein, the lower knife assembly 113 includes a lower fixed shaft 107, two lower side stops 108, two side knives 109, a plurality of rubber-coated stops 110, a plurality of middle knives 111, a lower lock nut 112, a rubber-coated stop 110 and a middle knife 111 are arranged at intervals with each other, the lower side stopper 108, the side knife 109, a plurality of rubber-coated stoppers 110, a plurality of middle knives 111, the side knife 108, and the lower side stopper 108 are sequentially set on the lower fixed shaft 107, and are locked by the lower locking nut 112. tight. The upper knife assembly 114 includes an upper fixed shaft 101, two side stops 102, a side rubber block 103, a plurality of cutter head assemblies 104, an upper lock nut 105, a side block 102, a side rubber block 103, a plurality of cutter head assemblies 104, The side rubber stopper 103 and the side stopper 102 are sequentially installed on the upper fixed shaft 101, and are locked by the upper locking nut 105, and the diameters of the rubberized middle stopper 207, the side rubber stopper 103 and the axial pressure piece are smaller than that of the blade 202. diameter. The axial center distance between the upper fixed shaft 101 and the lower fixed shaft 107 is less than the sum of the radii of the middle knife 111 and the blade 202, and the middle knife 111 and the rubber-coated middle stopper 207 are aligned up and down.

In this embodiment: a. The distance between the side knife 109 and the middle knife 111 and between the middle knife 111 and the middle knife 111 is fixed by the rubber cover 110, and the blade 202 in the upper knife assembly 114 is allowed to move a certain distance in the axial direction. b. The blade 202 is subjected to a constant axial pressure of the spring 205 during operation to ensure that the blade 202 in the upper knife assembly 114 is closely matched with the cutouts of the side knife 109 and the middle knife 111 in the lower knife assembly 113 . c. When using the cutter head assembly as shown in Figure 1: when the upper knife assembly 114 is matched with the lower knife assembly 113, a gasket can be inserted between the blade 202 of the upper knife assembly 114 and the rubber-coated middle stopper 207, and the After fitting well, remove the gasket. d. When using the cutter head assembly as shown in Figure 2: the blade 202 is installed on the connecting piece 203, when the connecting piece 203 rotates, the radial pressure that the blade 202 is subjected to can be adjusted, and the pin 204 is at the deepest point of the groove 401 When it is at the shallowest position, the pressure on the blade 202 is the minimum, otherwise, at the shallowest position, the pressure is the maximum. In order to facilitate tool holding when the connecting member 203 rotates, at least four assembly holes 402 are provided on its outer cylindrical surface 403 . Advance the upper knife assembly 114, turn the connecting piece counterclockwise, the pin 204 slides into the depth of the groove 401 of the connecting piece 203, the spring 205 relaxes, the pressing force of the blade 202 decreases, and then insert between the blade 202 and the rubber-coated middle stop 207 Protect the wedge, and then the knife row can be lifted up safely; before the upper knife assembly 114 is installed, insert the protection wedge between the blade 202 and the rubber-coated middle stop 207, and wait until the blade 202 enters the side knife of the lower knife assembly 113 109. After the knife edge of the middle knife 111 is 0.5±0.2mm, pull out the protective wedge, and then turn the connecting piece 203 clockwise, the pin 204 slides into the shallow groove 401 of the connecting piece 203, and the pressure spring in the spring seat 206 is pressurized, The pressing force between the upper and lower blades increases, and then the continuous cutting of the film can begin.

Because the present invention adopts the cutterhead assembly that comprises the axial pressure piece that can expand in the axial direction, increase the axial pressure, can make the blade 202 in the upper knife assembly 114 and the side knife 109 in the lower knife assembly 113, the middle knife 111 is a tight fit. After testing, it is especially suitable for cutting metal films with a thickness of less than 100 microns. After cutting, the incision is neat and free of burrs; The middle knife 111 just can realize the cutting of different width film; Blade 202 is made the workpiece of interchangeability, can reduce the workload of cutter making;

Claims (14)

1, a kind of cutter head assembly, it is characterized in that this cutter head assembly comprises retaining (207) in blade (202), the axial compressive force part that can stretch vertically and the encapsulate, described axial compressive force part comprises spring and spring base, the both sides of spring base are installed spring respectively, the outside installing blade (202) of each spring, retaining (207) wears successively and is fixed on the same axle in blade (202), axial compressive force part, another blade (202) and the encapsulate.

2, cutter head assembly according to claim 1 is characterized in that: cutter head assembly also comprises axle sleeve (301), and blade (202) and axial compressive force part wear and be supported on the axle sleeve (301), and retaining (207) wears and is fixed on the same axle in axle sleeve (301) and the encapsulate.

3, cutter head assembly according to claim 1 and 2 is characterized in that: described spring is disk spring (208).

4, cutter head assembly according to claim 1 and 2, it is characterized in that: described axial compressive force part comprises left and right sides connector (203), the both sides of described spring base are installed left and right sides spring (205) respectively, the fixing corresponding left and right sides blade (202) in the outside of left and right sides connector (203), the inboard of left and right sides connector (203) is provided with groove (401), the both sides of spring base are provided with blind hole (601), and left and right sides spring (205) compression correspondence is supported between described groove (401) and the blind hole (601).

5, cutter head assembly according to claim 4, it is characterized in that: the groove (401) on the described connector (203) is arranged to arc, groove (401) two ends depth difference, be the transition shape, pin (204) is set in the groove (401), and the spring (205) that the other end of pin (204) is set in the blind hole (601) withstands.

6, a kind of bar breaking tool device, comprise knife assembly (114) and following knife assembly (113), following knife assembly (113) comprises the middle cutter (111) that is located in down on the fixed axis (107), encapsulate retaining (110), it is characterized in that: the described knife assembly (114) of going up comprises cutter head assembly, cutter head assembly comprises blade (202), retaining (207) in axial compressive force part that can stretch vertically and the encapsulate, described blade (202), the axial compressive force part, retaining (207) wears successively and is fixed on the fixed axis (101) in another blade (202) and the encapsulate, the distance of shaft centers of last fixed axis (101) and following fixed axis (107) is from less than middle cutter (111) and blade (202) radius sum, and retaining (207) position consistency from top to bottom in middle cutter (111) and the encapsulate.

7, a kind of bar breaking tool device, comprise knife assembly (114) and following knife assembly (113), following knife assembly (113) comprises the middle cutter (111) that is located in down on the fixed axis (107), encapsulate retaining (110), it is characterized in that: the described knife assembly (114) of going up comprises any described cutter head assembly of claim 2-5, cutter head assembly (104) wears on the fixed axis (101) that is fixed on knife assembly (114), the distance of shaft centers of last fixed axis (101) and following fixed axis (107) is from less than middle cutter (111) and blade (202) radius sum, and retaining (207) position consistency from top to bottom in middle cutter (111) and the encapsulate.

8, according to claim 6 or 7 described bar breaking tool devices, it is characterized in that: upward retaining (207) width is slightly narrower or identical than middle cutter (111) width in the following knife assembly (113) in the encapsulate in the knife assembly (114).

9, according to claim 6 or 7 described bar breaking tool devices, it is characterized in that: upward the width sum of blade (202) in the knife assembly (114) and the axial compressive force part after the compression is slightly narrower than the retaining of the encapsulate in the following knife assembly (113) (110) width.

10, bar breaking tool device according to claim 8 is characterized in that: upward the width sum of blade (202) in the knife assembly (114) and the axial compressive force part after the compression is slightly narrower than the retaining of the encapsulate in the following knife assembly (113) (110) width.

11, according to claim 6 or 7 described bar breaking tool devices, it is characterized in that: cutter head assembly (104) outside in last knife assembly (114) also is provided with limit glue retaining (103).

12, bar breaking tool device according to claim 8 is characterized in that: cutter head assembly (104) outside in last knife assembly (114) also is provided with limit glue retaining (103).

13, bar breaking tool device according to claim 9 is characterized in that: cutter head assembly (104) outside in last knife assembly (114) also is provided with limit glue retaining (103).

14, bar breaking tool device according to claim 10 is characterized in that: cutter head assembly (104) outside in last knife assembly (114) also is provided with limit glue retaining (103).

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