CN217459839U

CN217459839U - Cutter head equipment and multi-needle sewing machine

Info

Publication number: CN217459839U
Application number: CN202221194354.0U
Authority: CN
Inventors: 方旭升
Original assignee: Ningbo Tongxin Sewing Machine Automation Co ltd
Current assignee: Ningbo Tongxin Sewing Machine Automation Co ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-09-20
Anticipated expiration: 2032-05-17

Abstract

The present disclosure provides a cutter head apparatus, comprising: a knife board and a movable knife rest; the movable tool rest is connected to the cutting board in a sliding manner, and the cutting board is used for connecting a sewing machine; the movable tool rest is connected with a movable blade and a movable tool rest accessory, the movable tool rest accessory is detachably connected to the movable tool rest, and the movable tool rest accessory is positioned in the first direction of the movable blade; the movable knife rest accessory is used for fixing the movable blade on the movable knife rest, so that the movable knife rest drives the movable blade to move relative to the knife board, the movable knife rest accessory is detachably arranged on the movable knife rest, and after the movable knife rest accessory is detached, the movable knife rest accessory can be adjusted through a first direction, so that the time and the energy of a user are saved.

Description

Cutter head equipment and multi-needle sewing machine

Technical Field

The disclosure relates to the field of sewing equipment, in particular to cutter head equipment and a multi-needle sewing machine.

Background

A multi-needle sewing machine is a machine that uses one or more sewing threads to form one or more stitches in a material to interlace or stitch one or more layers of the material. On current many needles sewing machine, when needing to change the needle position to and the blade that corresponds with the needle position, often need dismantle whole blade disc part to adjust the blade needle position in the blade disc part, extravagant user's a large amount of time influences user's use and experiences.

SUMMERY OF THE UTILITY MODEL

The present disclosure provides a cutter head device and a multi-needle sewing machine to at least solve the above technical problems existing in the prior art.

According to a first aspect of the present disclosure, there is provided a cutter head apparatus including a cutter plate and a movable cutter holder; the movable tool rest is connected to the cutting board in a sliding mode, and the cutting board is used for being connected with a sewing machine; the movable tool rest is connected with a movable blade and a movable tool rest accessory, the movable tool rest accessory is detachably connected to the movable tool rest, and the movable tool rest accessory is positioned in the first direction of the movable blade; the movable knife rest accessory is used for fixing the movable blade on the movable knife rest, so that the movable knife rest drives the movable blade to move relative to the knife board.

In one embodiment, the movable tool rest is provided with a sliding groove; the knife plate is used for connecting a sliding part, and the sliding part penetrates through the sliding groove to be connected with the knife plate; the sliding piece is used for matching with the sliding groove so as to enable the movable tool rest to move relative to the tool plate; the knife board is provided with a driving piece, and the driving piece is used for driving the movable knife rest to move along the direction of the sliding groove relative to the knife board.

In an embodiment, the knife plate is provided with a fixed blade, the fixed blade is located in the first direction of the movable blade, the fixed blade is used for the movable blade to abut against, and the fixed blade is used for matching with the movable blade to realize the cutting of the suture.

In one embodiment, the knife plate is connected with a wire clamping elastic sheet and a wire clamping pressure elastic sheet through a wire clamping elastic sheet fixing plate; the wire clamping elastic sheet is located in a second direction of the movable blade, the second direction is different from the first direction, and the wire clamping elastic sheet abuts against the movable blade; the wire clamping pressure elastic sheet abuts against the wire clamping elastic sheet so as to tightly press the wire clamping elastic sheet on the movable blade.

In an embodiment, the wire clamping elastic sheet fixing plate is also connected with a pressure adjusting elastic sheet; the first end of the pressure adjusting elastic sheet is abutted against the wire clamping pressure elastic sheet, and the second end of the pressure adjusting elastic sheet is connected with the wire clamping elastic sheet fixing plate through an adjusting piece; wherein the first end and the second end are in different positions; the adjusting piece is used for adjusting the relative position of the first end of the pressure adjusting elastic sheet and the wire clamping pressure elastic sheet, so that the wire clamping elastic sheet is tightly pressed on the movable blade, and the movable blade is tightly pressed on the fixed blade.

In one embodiment, the cutting board is provided with a driving part, and the driving part is a cylinder; the knife board is provided with a cylinder body, and the cylinder body is used for the air cylinder to be embedded.

In one embodiment, one end of the cylinder is connected with a cylinder piston and a C-shaped clamp spring, the cylinder piston and the C-shaped clamp spring are used for being matched with the cylinder, so that the cylinder is embedded into the cylinder body, and the cylinder body is easy to form.

In an embodiment, the other end of the cylinder is connected with a connecting block, and the connecting block is used for connecting an output shaft of the cylinder with the movable tool rest so as to drive the movable tool rest to move relative to the cutting board.

In one embodiment, the sliding groove is an elliptical groove for guiding the movable tool holder to move along the elliptical groove.

According to a second aspect of the present disclosure, there is provided a sewing machine characterized by comprising the cutter head apparatus of any one of the above.

According to the cutter head equipment and the sewing machine, the movable knife rest is connected to the cutter plate in a sliding mode through the arrangement of the cutter plate and the movable knife rest, the movable blade is fixed on the movable knife rest through the movable knife rest accessory, so that the movable knife rest drives the movable blade to move relative to the cutter plate, and the cutting of a suture line is realized; the movable knife rest accessory is detachably arranged on the movable knife rest, and after the movable knife rest accessory is detached, the movable blade can be adjusted through the first direction, so that the time and the energy of a user are saved.

It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present disclosure, nor do they limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

The above and other objects, features and advantages of exemplary embodiments of the present disclosure will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:

in the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

FIG. 1 is a schematic diagram I illustrating the structure of a cutter head device according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram showing a second constitutional structure of the cutter head device according to the embodiment of the disclosure;

FIG. 3 is a schematic diagram showing a third component structure of a cutter head device according to an embodiment of the disclosure;

FIG. 4 is a schematic diagram showing a fourth component structure of the cutter head device according to the embodiment of the disclosure;

FIG. 5 shows a schematic diagram of a component structure of a cutter head device according to an embodiment of the disclosure;

FIG. 6 shows a sixth schematic structural component view of a cutter head device according to an embodiment of the disclosure;

FIG. 7 shows a seventh schematic structural diagram of a cutter head device according to an embodiment of the present disclosure;

fig. 8 shows a schematic structural diagram eight of a cutter head device according to an embodiment of the present disclosure.

The reference numbers in the figures illustrate:

1. a cutting board; 11. a sliding member; 12. a drive member; 121. a cylinder; 122. a cylinder piston; 123. a cylinder front end cover; 124. a cylinder rear end cover; 125. a C-shaped clamp spring; 126. a cylinder piston; 127. connecting blocks; 13. fixing a blade; 14. a wire clamping elastic sheet; 15. a wire clamping pressure spring plate; 16. a pressure regulating spring plate; 17. a wire clamping elastic sheet fixing plate; 18. a cylinder body; 2. a movable tool rest; 21. a movable blade; 22. a movable blade carrier accessory; 23. a sliding groove; 231. an elliptical trough.

Detailed Description

In order to make the objects, features and advantages of the present disclosure more apparent and understandable, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

FIG. 1 is a schematic diagram I illustrating the structure of a cutter head device according to an embodiment of the present disclosure; FIG. 2 is a schematic diagram showing a second constitutional structure of the cutter head device according to the embodiment of the disclosure; FIG. 3 is a schematic diagram showing a third component structure of a cutter head device according to an embodiment of the disclosure; FIG. 4 is a schematic diagram showing a fourth component structure of the cutter head device according to the embodiment of the disclosure; please refer to fig. 1, fig. 2, fig. 3 and fig. 4;

according to a first aspect of the present disclosure, there is provided a cutter head apparatus including a cutter plate 1 and a movable cutter holder 2; the movable tool rest 2 is connected to the cutting board 1 in a sliding manner, and the cutting board 1 is used for connecting a sewing machine; the movable knife rest 2 is connected with a movable blade 21 and a movable knife rest accessory 22, the movable knife rest accessory 22 is detachably connected to the movable knife rest 2, and the movable knife rest accessory 22 is positioned in the first direction of the movable blade 21; the movable blade carrier attachment 22 is used to fix the movable blade 21 to the movable blade carrier 2, so that the movable blade carrier 2 drives the movable blade 21 to move relative to the blade plate 1.

According to the cutter head equipment and the sewing machine, the cutter plate 1 and the movable tool rest 2 are arranged, the movable tool rest 2 is connected to the cutter plate 1 in a sliding mode, the movable blade 21 is fixed on the movable tool rest 2 through the movable tool rest accessory 22, so that the movable tool rest 2 drives the movable blade 21 to move relative to the cutter plate 1, and the cutting of a suture line is achieved; the movable blade carrier attachment 22 is detachably mounted on the cutting board 1, and the movable blade 21 can be adjusted in the first direction by detaching the movable blade carrier attachment 22, so that time and energy of a user can be saved.

In the embodiment of the disclosure, the knife board 1 is connected with the movable knife rest 2 in a sliding way, and a sliding groove 23 is formed on the movable knife rest 2; the knife board 1 is used for connecting a sliding part 11, the sliding part 11 penetrates through a sliding groove 23 to be connected with the knife board 1, and the sliding part 11 is used for matching with the sliding groove 23 so as to enable the movable knife rest 2 to move relative to the knife board 1; the sliding member 11 may include a fastening member and a rolling member, the rolling member is embedded in the sliding groove 23, the fastening member passes through the rolling member and then is connected to the cutting board 1, and the fastening member may be a screw. When the movable tool rest 2 moves relative to the tool plate 1, the sliding piece 11 moves in the sliding groove 23. Wherein the key cap of fastener is greater than the width of groove 23 that slides to the messenger slides more stably, and further, the groove 23 that slides can be oval groove 231, and oval groove is used for guiding movable knife rest and moves along oval groove, can make movable knife rest 2's back-and-forth movement more stable. The knife board 1 is provided with a driving piece 12, and the driving piece 12 is used for driving the movable knife rest 2 to move relative to the knife board 1 along the direction of the sliding groove 23. The driving element 12 is not limited, and the driving element 12 can drive the movable tool holder 2 to reciprocate along the track of the sliding groove 23, so that the suture is cut. The movable tool rest 2 is connected to the cutting board 1 in a sliding manner, and the cutting board 1 is used for connecting a sewing machine;

the movable knife rest 2 is connected with a movable blade 21 and movable knife rest accessories 22, the number of the movable blades 21 is not limited, the movable blades 21 can be multiple and corresponding, the movable knife rest accessories 22 are provided with fixing holes, and the fixing holes are used for being matched with the movable blade 21 fixing blocks and fasteners to fix the movable blades 21 on the movable knife rest 2. Wherein, it is preferred a plurality ofly that movable blade 21 fixed block to can cooperate better to movable blade 21 to cooperate fixedly, the fastener can be the screw. The movable tool rest accessory 22 is detachably connected to the movable tool rest 2; the movable blade carrier attachment 22 is used to fix the movable blade 21 to the movable blade carrier 2, so that the movable blade carrier 2 drives the movable blade 21 to move relative to the blade plate 1. When the needle position needs to be adjusted and the movable blade 21 needs to be replaced, only the fastener needs to be disassembled so as to directly operate the movable knife rest accessory 22 after the movable knife rest accessory 22 is disassembled, the whole knife disc does not need to be cut, and the working efficiency and the accuracy of a user are improved. The movable blade carrier attachment 22 is positioned in a first direction of the movable blade 21, which is the direction toward the needle when the cutterhead is mounted on the sewing machine. Wherein the screw fastening the movable blade 21 and the nut fastening the screw fastening the movable blade holder 2 are both arranged toward the first direction for easy adjustment by the user.

In an embodiment, the knife plate 1 is provided with a fixed blade 13, the fixed blade 13 is located in the first direction of the movable blade 21, the fixed blade 13 is used for abutting against the movable blade 21, and the fixed blade 13 is used for cooperating with the movable blade 21 to realize the cutting of the suture.

In the embodiment of the present disclosure, the fixed blade 13 is in an elongated shape, and the fixed blade 13 is used for cutting the suture in cooperation with the reciprocating motion of the movable blade 21. The fixed blade 13 is used for abutting against the movable blade 21. The fixed blades 13 are integrated with the same number of fixed blades as the movable blades 21 corresponding to the number of the movable blades 21, so as to cut the suture.

FIG. 5 shows a schematic diagram of a component structure of a cutter head device according to an embodiment of the disclosure; FIG. 6 shows a sixth schematic structural component view of a cutter head device according to an embodiment of the disclosure; FIG. 7 shows a seventh schematic structural diagram of a cutter head device according to an embodiment of the present disclosure; please refer to fig. 1, fig. 2, fig. 5, fig. 6 and fig. 7.

In an embodiment, the knife board 1 is connected with a wire clamping spring 14 and a wire clamping pressure spring 15 through a wire clamping spring fixing plate 17; the wire clamping elastic sheet 14 is positioned in a second direction of the movable blade 21, the second direction is different from the first direction, and the wire clamping elastic sheet 14 abuts against the movable blade 21; the wire clamping pressure spring piece 15 abuts against the wire clamping spring piece 14 to press the wire clamping spring piece 14 on the movable blade 21.

In the embodiment of the present disclosure, the wire clamping pressure spring piece 15 and the wire clamping spring piece 14 are both in a long strip shape, and the wire clamping pressure spring piece 15 and the wire clamping spring piece 14 are both provided with connecting holes for cooperating with fasteners to fix the wire clamping spring piece 14 and the wire clamping pressure spring piece 15 on the wire clamping spring fixing plate, and the wire clamping spring fixing plate is in a long strip shape and is provided with a plurality of connecting holes for cooperating with the fasteners to use. The wire clamping spring fixing plate is connected with the knife board 1, so that the wire clamping elastic sheet 14 and the wire clamping pressure elastic sheet 15 are fixed. The wire clamping elastic sheet 14 is provided with a bending structure, so that one end of the wire clamping elastic sheet 14 can abut against the movable blade 21; correspondingly, the wire clamping pressure spring piece 15 also has a bending structure, so that under the condition that one end of the wire clamping pressure spring piece 15 is attached to the wire clamping spring piece 14, the other end of the wire clamping pressure spring piece 15 can apply certain pressure to the wire clamping spring piece 14 to tightly press the wire clamping spring piece 14 on the movable blade 21.

In an embodiment, the wire clamping spring fixing plate 17 is further connected with a pressure adjusting spring 16; the first end of the pressure adjusting elastic sheet 16 is abutted against the wire clamping pressure elastic sheet 15, and the second end of the pressure adjusting elastic sheet 16 is connected with the wire clamping elastic sheet fixing plate 17 through an adjusting piece; wherein the first end and the second end are in different positions; the adjusting piece is used for adjusting the relative position of the first end of the pressure adjusting elastic sheet 16 and the wire clamping pressure elastic sheet 15, so that the wire clamping elastic sheet 14 is pressed on the movable blade 21, and the movable blade 21 is pressed on the fixed blade 13.

In the embodiment of the present disclosure, the wire clamping elastic sheet fixing plate 17 is connected to a pressure adjusting elastic sheet 16, and the pressure adjusting elastic sheet 16 is used for adjusting the pressure applied by the wire clamping pressure elastic sheet 15 to the wire clamping elastic sheet 14, so as to adjust the tightness degree between the fixed blade 13, the movable blade 21, the wire clamping elastic sheet 14 and the wire clamping pressure elastic sheet 15. The pressure adjusting elastic sheet 16 includes a first end, and the first end is used for abutting against the wire clamping pressure elastic sheet 15 to provide pressure for the wire clamping pressure elastic sheet 15. The second end of the pressure adjusting elastic sheet 16 is connected with the wire clamping elastic sheet fixing plate 17 through an adjusting agent; the relative position between the first end of the elastic sheet 16 and the wire clamping pressure elastic sheet 15 is adjusted by pressure to provide pressure. The position of the second end is not limited and can be in the middle or the end of the pressure adjusting elastic sheet 16. Specifically, the first end of the pressure adjusting elastic sheet 16 is L-shaped, and the tail end of the pressure adjusting elastic sheet abuts against the wire clamping pressure elastic sheet 15; the second end is connected to the wire clamping elastic sheet fixing plate 17 through a screw, the nut of the screw faces the first direction, and a user only needs to adjust the screw, so that the second end of the pressure adjusting elastic sheet 16 moves towards or away from the wire clamping elastic sheet fixing plate 17 under the driving of the screw, and the first end of the pressure adjusting elastic sheet 16 applies or releases pressure. The wire clamping pressure spring piece 15 can also comprise a U-shaped part, and the U-shaped part is used for being abutted against a fixing frame of the wire clamping spring piece 14 so as to bring enough adjusting space for the second end of the adjusting pressure spring piece to adjust the pressure; by adjusting the tightness between the movable blade 21 and the fixed blade 13, the movable blade 21 can cut the suture better.

Fig. 8 shows a schematic structural diagram eight of the cutter head device according to the embodiment of the disclosure. Please refer to fig. 2 and 8.

In an embodiment, the knife board 1 is provided with a driving member 12, the driving member 12 is a cylinder piston rod 121; the knife board 1 is provided with a cylinder body 18, and the cylinder body 18 is used for embedding a piston rod 121 of the cylinder.

In the embodiment of the present disclosure, the driving member 12 disposed on the cutting board 1 is the cylinder piston rod 121, the corresponding cylinder body 18 embedded in the cylinder piston rod 121 is disposed on the cutting board 1, and the cylinder body is more easily formed, because the cylinder body 18 is a penetrating design on the cutting board 1, the cylinder body 18 can be processed from any end when being processed, the processing difficulty of the cutting board 1 is reduced, and the situation that the parts cannot be processed when interfering is also avoided. For example, in the cutting board 1, the portion to which the slider 11 is connected is located on the same straight line as the cylinder rod 121 because the slider 11 moves on the same straight line as the cylinder rod 121, and therefore, the portion to which the slider 11 is connected is located on the same straight line as the cylinder 18 accommodated in the cylinder rod 121, and therefore, in the case of an accommodating cavity having a single hole, it is difficult to process the portion.

Further, two ends of the cylinder piston rod 121 are provided with a cylinder piston 122, which includes a cylinder front end cover 123 and a cylinder rear end cover 124, so as to fix the cylinder piston rod 121 in the cylinder body 18, specifically, one end of the cylinder piston rod 121 is connected with the cylinder front end cover 123, and is further matched with a cylinder piston 126 and a C-type snap spring 125, so as to embed the cylinder piston rod 121 in the cylinder body 18, and prevent the cylinder piston rod 121 from moving away from the movable blade 21. Wherein, be provided with the through-hole on the cylinder rear end cover 124, the through-hole is used for supplying the output shaft of cylinder piston rod 121 to pass to be connected with connecting block 127, connecting block 127 is used for connecting the output shaft and the movable tool holder 2 of cylinder piston rod 121, in order to drive the relative cutting board 1 motion of movable tool holder 2, specifically, is provided with the joint axle joint on connecting block 127 and advances the joint inslot of movable tool holder 2, realizes connecting. Wherein, the number of the cylinder piston rods 121 is two, and the number of the corresponding connecting blocks 127 is also two, so that more stable forward and backward movement can be provided for the movable tool rest 2.

According to a second aspect of the present disclosure, there is provided a multi-needle sewing machine characterized in that the sewing machine includes the cutter head apparatus of any one of.

It should be understood that various forms of the flows shown above may be used, with steps reordered, added, or deleted. For example, the steps described in the present disclosure may be executed in parallel, sequentially, or in different orders, as long as the desired results of the technical solutions disclosed in the present disclosure can be achieved, and the present disclosure is not limited herein.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, "a plurality" means two or more unless specifically limited otherwise.

The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. The cutter head equipment is characterized by comprising a cutter plate (1) and a movable cutter frame (2);

the movable tool rest (2) is connected to the cutting board (1) in a sliding manner, and the cutting board (1) is used for connecting a sewing machine;

the movable knife rest (2) is connected with a movable blade (21) and a movable knife rest accessory (22), the movable knife rest accessory (22) is detachably connected to the movable knife rest (2), and the movable knife rest accessory (22) is located in the first direction of the movable blade (21);

the movable knife rest accessory (22) is used for fixing the movable blade (21) on the movable knife rest (2) so that the movable knife rest (2) drives the movable blade (21) to move relative to the knife board (1).

2. A cutter head arrangement according to claim 1, characterized in that a sliding groove (23) is formed on the movable cutter holder (2);

the cutting board (1) is used for connecting a sliding part (11), and the sliding part (11) penetrates through the sliding groove (23) to be connected with the cutting board (1); the sliding piece (11) is used for matching with the sliding groove (23) so as to enable the movable tool rest (2) to move relative to the cutting board (1);

be provided with driving piece (12) on cutting board (1), driving piece (12) are used for the drive movable tool rest (2) are followed the direction in groove (23) that slides is relative cutting board (1) motion.

3. The cutter head apparatus according to claim 1, wherein a fixed blade (13) is provided on the cutter plate (1), the fixed blade (13) is located in the first direction of the movable blade (21), the fixed blade (13) is used for abutting against the movable blade (21), and the fixed blade (13) is used for matching the movable blade (21) to realize the cutting of the suture.

4. The cutter head equipment as claimed in claim 3, wherein the cutter plate (1) is connected with a wire clamping elastic sheet (14) and a wire clamping pressure elastic sheet (15) through a wire clamping elastic sheet fixing plate (17);

the wire clamping elastic sheet (14) is located in a second direction of the movable blade (21), the second direction is different from the first direction, and the wire clamping elastic sheet (14) abuts against the movable blade (21);

the wire clamping pressure elastic sheet (15) abuts against the wire clamping elastic sheet (14) so as to press the wire clamping elastic sheet (14) on the movable blade (21).

5. The cutter head device according to claim 4, characterized in that a pressure adjusting spring (16) is further connected to the wire clamping spring fixing plate (17);

the first end of the pressure adjusting elastic sheet (16) is abutted against the wire clamping pressure elastic sheet (15), and the second end of the pressure adjusting elastic sheet (16) is connected with the wire clamping elastic sheet fixing plate (17) through an adjusting piece; wherein the first end and the second end are in different positions;

the adjusting piece is used for adjusting the relative position of the first end of the pressure adjusting elastic sheet (16) and the wire clamping pressure elastic sheet (15), so that the wire clamping elastic sheet (14) is pressed on the movable blade (21), and the movable blade (21) is pressed on the fixed blade (13).

6. The cutter head device according to claim 1, characterized in that a driving member (12) is arranged on the cutter plate (1), and the driving member (12) is a cylinder piston rod (121);

a cylinder body (18) is arranged on the cutting board (1), and the cylinder body (18) is used for embedding the cylinder piston rod (121).

7. The cutter head equipment as claimed in claim 6, wherein one end of the cylinder piston rod (121) is connected with a cylinder piston (122) and a C-shaped clamp spring (125), the cylinder piston (122) and the C-shaped clamp spring (125) are used for being matched with the cylinder piston rod (121) so as to embed the cylinder piston rod (121) into the cylinder body (18), and the cylinder body (18) is easy to machine and form.

8. The cutter head device according to claim 7, characterized in that the other end of the cylinder piston rod (121) is connected with a connecting block (127), and the connecting block (127) is used for connecting the cylinder piston rod (121) with the movable cutter frame (2) so as to drive the movable cutter frame (2) to move relative to the cutter plate (1).

9. A cutterhead arrangement according to claim 2, characterized in that said sliding groove (23) is an oval groove (231), said oval groove (231) being adapted to guide the movement of said movable carriage (2) along said oval groove (231).

10. A multi-needle sewing machine, characterized in that it comprises a cutterhead arrangement as claimed in any one of claims 1-9.