JP2003290583A - Table mechanism for multi-head embroidery sewing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily attach and detach a division table in a stable posture and to reduce the vibration and vibration noise of a sewing table. <P>SOLUTION: The division table 15A constituting the sewing table is provided with members 26 and 26H to be guided projected downwards, an engaging part 26a is formed at the rear end part of the members 26 and 26H to be guided, and the rear part side frame 1b of a main body frame is provided with a guide member 5 capable of guiding the members 26 and 26H to be guided through a fixed member 30 and a supporting member 32. When the division table 15A is held with both hands and the rear end part of the division table 15A is mounted on the guide member 35 through the members 26 and 26H to be guided and pushed in to a rear part, the rear end part of the division table 15A is horizontally guided to the rear part by the guide member 35 through the members 26 and 26H to be guided. Thereafter, the engaging part 26a is horizontally fitted to the fitting hole 32b of the supporting member 32 from a front part, positioned and supported. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a table mechanism for a multi-head embroidery sewing machine, and more particularly to a table mechanism for easily removing and installing a sewing table provided for a plurality of embroidery sewing machines.

[0002]

2. Description of the Related Art Conventionally, a multi-head embroidery sewing machine including a plurality of sewing machine main bodies has been put to practical use. In this multi-head embroidery sewing machine, a plurality of sewing machine main bodies are arranged on a top surface of a base frame at predetermined intervals, and the same number of embroidery patterns are simultaneously formed on a flat work cloth of the number corresponding to the number of these sewing machine main bodies. As can be obtained, a long movable frame for mounting a plurality of flat frames for holding these work cloths is provided by being placed on the work table.

This movable frame is configured to be driven in the X-axis direction via an X-axis drive mechanism and to be driven in the Y-axis direction via a Y-axis drive mechanism. By the way, in this type of multi-head embroidery sewing machine, a cap frame for embroidering a curved cap instead of a flat frame used when forming an embroidery pattern on a flat work cloth is also provided in the bed portion of the sewing machine main body. It is configured so that it can be mounted on a cylinder bed that is connected to the tip. Therefore, in the sewing table, in order to mount the hat frame on the cylinder bed, the mounting position of the sewing table is a position at the time of mounting the flat frame having a height corresponding to the upper surface of the cylinder bed (hereinafter, referred to as a rising position), It is possible to switch from this raised position to a position lowered by a predetermined distance (hereinafter referred to as a lowered position).

For example, in Japanese Patent No. 2885020, a sewing table is composed of three sewing tables on the left side, the center, and the right side, and the left end portion of the left side sewing table and the right end portion of the right side sewing table are made to correspond to each other. Each of the base frames is provided with a table support plate having a U-shaped cross section having an upper horizontal plate portion corresponding to the ascending position and a lower horizontal plate portion corresponding to the descending position, and a table supporting plate for supporting each table is provided at the base frame. The table mechanism of the multi-head sewing machine provided on the front side of the machine is described.

In this case, when the left or right sewing table is attached to the lowered position, the table support plate is lowered to the lowered position, and the operator holds the left sewing table or the right sewing table in a substantially horizontal state with both hands. After placing the left end of the left side sewing table or the right end of the right side sewing table on the lower horizontal plate part of the table support plate, slide the left side sewing table or the right side sewing table while sliding on the lower horizontal plate part toward the back. It is designed to be mounted at a predetermined mounting position. That is, the table support plate has a guide mechanism for moving the sewing table backward and a support function for always supporting the sewing table.

Further, in Japanese Unexamined Patent Publication No. 8-243288, a sewing table is composed of a plurality of movable tables, and toggle clamps for mounting fitting portions are provided on the left and right sides of the lower surface of each movable table, and a plurality of mounting heights are provided. A plurality of fitted parts according to the above are fixed to the base frame for each movable table, and the back side part of the fitting part having a predetermined length is fitted to the fitted part provided at a desired height position. A multi-head embroidery sewing machine in which the movable table is placed on the front side of the fitting part, which is guided and tightened by the clamp in the inserted state, and finally the movable table is fixed to the fitting part by the toggle clamp. Is listed.

[0007]

However, according to the table mechanism of the multi-head sewing machine disclosed in Japanese Patent No. 2885020, the left end of the left sewing table or the right end of the right sewing table is connected to the upper horizontal plate portion of the table support plate or Only one side is placed on the lower horizontal plate part, and then it is slid toward the back to attach it to the specified mounting position.Therefore, the left sewing table or right sewing table is easily disengaged from the table support plate while moving to the back side, and There is a problem that the workability of attaching the sewing table or the right side sewing table is reduced.

Further, since the sewing table is held by the upper horizontal plate portion or the lower horizontal plate portion even during the sewing operation, the vibration and vibration sound on the base frame side generated during sewing are transmitted to each sewing table. When the sewing speed is high or the sewing table resonates, there is a problem that a large vibration sound is generated from the sewing table. Therefore, it is possible to attach a vibration preventing rubber member to the upper horizontal plate portion or the lower horizontal plate portion of the table support plate, but in this case, because of the attached rubber member,
There is a problem that the left side sewing table or the right side sewing table becomes difficult to slip.

According to the multi-head embroidery sewing machine disclosed in Japanese Patent Application Laid-Open No. 8-243288, the fitted portion provided on the base frame at different height positions is provided at a deep position below the embroidery head. Therefore, the fitting work of fitting the back end of the fitting part to the fitted parts provided on the left and right is complicated, and the tightening by the toggle clamp is released every time the movable table is removed. There is a problem that the fitted portion is pulled out after the tightening is released by the clamp of the fitted portion, and the workability of removing and attaching the sewing table is reduced.

Further, since the movable table is supported by the base frame through the fitting portion and the fitted portion, vibrations and vibration sounds generated during sewing are transmitted to the movable table, and large vibrations are generated from the movable table. There is a problem that sound is generated. An object of the present invention is to make it possible to easily attach and detach a split table in a stable posture and easily reduce vibration and vibration noise of the sewing table.

[0011]

A table mechanism of a multi-head embroidery sewing machine according to claim 1 comprises a plurality of sewing machine main body parts, a work cloth feed mechanism shared by the plurality of sewing machine main body parts, and a main body frame. In an embroidery sewing machine, a plurality of divided tables that form a sewing table for a plurality of sewing machine main bodies, a guided member that is provided downwardly in the vicinity of the rear end of each divided table, and a rear end of each divided table are provided. The engaging member provided in a protruding shape from the rear end to the rear, the guide member attached to the main body frame and capable of receiving the guided member and guiding horizontally in the front-rear direction, and the rear of the engaging member provided on the main body frame. And a support member having a fitting hole for horizontally fitting the end portion from the front and capable of positioning and supporting the rear end portion of the engaging member in the fitted state.

Each of the plurality of divided tables forming the sewing table is provided with a guided member protruding downward and an engaging member protruding backward, and the main body frame is provided with
Since a guide member capable of guiding the guided member and a support member are provided respectively, when attaching the divided table, first hold the divided table with both hands and guide the rear end of the divided table through the guided member. When it is placed on a member and pushed backward while holding the front side of the split table, the rear end of the split table is horizontally guided backward by the guide member via the guided member. After that, the rear end portion of the engaging member is horizontally fitted into the fitting hole of the supporting member from the front, and is further positioned and supported in the fitted state.

Therefore, the division table can be easily attached in a stable posture, and the workability of the attachment work is improved. On the other hand, when removing the split table,
The connection between the engaging member and the fitting hole of the support member can be quickly released simply by lifting the front side of the split table and pulling out the split table to the front side, and then the guided member moves forward while being guided by the guide member. Therefore, the split table can be easily removed in a stable posture.

Here, when the support member is made of an elastic member made of rubber or synthetic resin (claim 2 dependent on claim 1), the engaging member is made of rubber or synthetic resin. Since it is connected to the main body frame via the, the vibration on the main body frame side generated during the sewing work is less likely to be transmitted to the split table, and the vibration and vibration noise of the split table can be significantly reduced.

Here, when the guided member and the engaging member are integrally formed of a metal plate (Claim 3 dependent on Claim 1 or 2, the guided member and the engaging member). Can be integrally formed of a metal plate, the number of parts can be reduced, and the work of attaching the guided member and the engaging member to the split table can be simplified.

Here, the division table is configured so that the position can be switched between a first level position where the original fabric can be sewn and a second level position which is lowered by a predetermined distance from the first level position. Is provided in correspondence with the first level position and the second level position (claims 1 to 3).
According to claim 4) dependent on any one of the above, by supporting the engagement member by the support member at the first level position through the guide of the guided member, the split table is moved to the first level position. The division table can be attached to the second level position by supporting the engagement member with the support member at the second level position.

[0017]

Embodiments of the present invention will be described with reference to the drawings. This embodiment is an example in which the present invention is applied to a multi-head embroidery sewing machine having four multi-needle embroidery sewing machines.

As shown in FIG. 1, a multi-head embroidery sewing machine M
Has a main body frame 1 extending in the left-right direction (X direction), and a substantially rectangular sewing machine support plate 2 provided on the rear side of the upper surface of the main body frame 1 and extending in the left-right direction.
Four multi-needle type embroidery sewing machines having the same structure (this corresponds to a sewing machine main body) M1 to M4 are arranged in a row in the left-right direction. Therefore, these multiple head embroidery sewing machines M1
Through M4, a plurality of identical embroidery patterns can be sewn at one time.

For each of the embroidery sewing machines M1 to M4, a needle bar case 7 for supporting 12 needle bars so as to be vertically movable is provided at the front end of the arm section 3 so as to be movable in the left and right directions. There is. Twelve balances 8 are swingably supported on the needle bar case 7. On the other hand, a pillar 4 is connected to the arm 3, and a bed main body 5 connected to the lower end of the pillar 4 is fixed on the sewing machine support plate 2. A cylinder bed 6 extends forward from the front end of the bed body 5,
At the front end inside the cylinder bed 6, a thread catcher (not shown), a thread cutting mechanism, etc. are provided.

A sewing needle 9 is attached to the lower end of the needle bar of each needle bar case 7.
, And 12 embroidery threads of 12 colors are supplied to the 12 sewing needles 9 from the 12 thread stands 11 provided on the thread stand 10. By moving the needle bar case 7 in the left-right direction and switching one desired sewing needle 9 to the sewing position facing the needle hole 12 at the tip of the cylinder bed 6, one of the needle bars is selected and driven up and down. At the same time, the balance 8 corresponding to the needle bar is driven to swing up and down, and the embroidery stitch is formed by the embroidery thread of the selected color by the cooperation of the sewing needle 9 and the thread catcher.

Upper shaft (not shown) for driving the needle bar or the balance 8
Is rotationally driven by a drive shaft 13 connected to a sewing machine motor (not shown), and a lower shaft (not shown) for rotating the thread catcher is also connected by the drive shaft 13 and the V belt 14,
It is rotationally driven by the drive shaft 13. On the front side of the sewing machine support plate 2, as will be described later, a lifted position (which corresponds to the first level position), which is at the same height as the upper surface of the cylinder bed 6, and a cap frame (not shown) is lifted. A sewing table 15 which can be switched to a lower position (which corresponds to the second level position) lower than the position is provided.

The front side frame 1 on the front surface of the main body frame 1
At a plurality of positions of a, an inverted L-shaped table support plate 16 supporting the front end portion of the sewing table 15 in a side view is fixed by fixing bolts. These table support plates 1
Vertical holes 16a are formed in two rows on the left and right sides of each vertical plate portion of 6, and the table support plate 16 is fixed by a fixing bolt (not shown) inserted through the long holes 16a so as to be vertically movable. . Auxiliary tables 17 and 18 are provided on the upper surface of the main body frame 1 so as to be located on the left and right sides of the sewing table 15, respectively. An operation panel 19 for inputting various commands relating to embroidery sewing work is provided at the rear end side portion of the auxiliary table 18.

The sewing table 15 and the auxiliary tables 17 and 1
On the upper side of 8, a front-rear feed frame 20 that is driven to move in the front-rear direction (Y direction) and a left-right feed frame 21 that has a rectangular shape in plan view that is driven to move in the left-right direction are disposed. Left and right feed frame 2
The rear frame part 21a located on the rear end side of the first frame is supported so as to be movable relative to the front-rear feed frame 20 in the left-right direction. That is, the left-right feed frame 21 is movable in the front-rear direction integrally with the front-rear feed frame 20, and the left-right feed frame 20 is moved in the left-right direction.
Can be moved relative to. The left and right feed frame 21 is a movable frame to which a plurality of embroidery frames can be attached so as to correspond to the embroidery sewing machines M1 to M4. Here, the work cloth feed mechanism is configured by the front-rear feed frame 20, the left-right feed frame 21, the X-direction feed mechanism and the Y-direction feed mechanism, which are not shown.

Next, the table mechanism 25 will be described. As shown in FIGS. 2, 4, 5, and 6, the sewing table 15 is composed of two left and right divided tables 15A and 15B, and four divided tables 15A and 15B are provided so that the cylinder bed 6 does not interfere with each other. Notches 15a are formed respectively. Bending in a generally loose crank shape in a side view protruding downward and rearward to the left end near the right end and the rear end of the lower surface of the split table 15B and the rear end near the right end and the left end of the lower surface of the split table 15B. Guided member 2
The front ends of 6, 26H are fixed by bolts 27, respectively.

The rear end portions of the guided members 26 and 26H are integrally formed with the engaging member, and the engaging portion 2
It functions as 6a. However, the width dimension of the guided member 26H provided at the right end portion of the divided table 15A and the width dimension of the guided member 26H provided at the left end portion of the divided table 15B are the width dimensions of the other guided members 26. It is about half. By the way, as shown in FIGS. 3 to 6, at a plurality of locations on the rear side frame 1b of the main body frame 1 corresponding to the guided members 26 and 26H, the fixing members 30 that are bent are vertically adjacent to each other and the fixing bolts are provided. They are fixed by 31, respectively.

The fixing member 30 provided on the lower side will be described. As shown in FIG. 5, a block-shaped support made of hard rubber is supported in a rectangular insertion hole (not shown) formed near the lower end. A member 32 is supported. A collar portion 32 a is formed at the front end of the support member 32, and the support member 3
2 is fixedly supported by the flange portion 32a so as not to come off inward. The rear end of the guide member 35 extending in the front-rear direction is fixed to the lower end of the fixing member 30 with a bolt (not shown). The guide member 35 is made of metal, has a predetermined length in the front-rear direction, has left and right end portions bent upward, and has a U-shape in which a bottom wall portion 35a and a side wall portion 35b are formed.

Therefore, the bottom wall portion 35a and the side wall portions 3 are formed.
With 5b, the guided members 26 and 26H described above are received and horizontally guided in the front-rear direction. In this case, 2
For one guided member 26H, one guiding member 35
Will be informed in common. At the rear end portion of the bottom wall portion 35a, a step-shaped mounting portion 35c is formed, and the guide member 35
Is fixed by a bolt through this mounting portion 35c, and is cantilevered by a beam portion 35d bent forward.

The other plurality of fixing members 30 and the guide member 35 are similarly constructed. However, each of the fixing members 30 provided on the upper side is fixed to the rear frame 1b by a fixing bolt at the lower end thereof. That is, the upper guide member 35 allows the division tables 15A, 1
5B can be arranged in a raised position, and the lower guide member 35 can arrange the divided tables 15A, 15B in a lowered position. By the way, the guided members 26, 26
When H moves rearward while sliding on the bottom wall portion 35a, the engaging portion 26a of the guided member 26, 26H is horizontally inserted from the front side, which is a slit that is a slit that is long in the lateral direction and has a tapered cross-section. Are formed on the rubber support member 32.

Next, the operation of the table mechanism 25 thus constructed will be described. Explaining the case where the divided table 15A is attached to the lowered position, the operator first adjusts the table support plate 16 to the height position which is the lowered position. Next, holding the split table 15A with both hands, the left guided member 26 is on the left and lower guiding member 35, and the right guided member 26H is at the center in the left-right direction and of the lower guiding member 35. Place each on the left half.
At this time, the operator supports the front end of the divided table 15A with both hands in a substantially horizontal shape. Next, the worker pushes the divided table 15A straight backward.

In this case, the rear end of the divided table 15A is guided by the two guided members 26 and 26H.
These guided members 2 are guided to the rear via the
6, 26H does not come off from the guide member 35, and the division table 15A does not tilt, and the operator can easily push in the division table 15A in a stable posture. When the split table 15A is pushed to near the predetermined mounting position, the guided members 26, 26H
The engaging portions 26a are engaged with the tapered insertion holes 32b, respectively. Therefore, by further pushing the split table 15A, the engaging portions 26a are reliably inserted into the insertion holes 32b.

That is, the engaging portion 26a is positioned and supported in the fitted state. After that, the upper end of the table support plate 16 is fixed to the divided table 15A with bolts. In this way, the operator only has to push the split tables 15A and 15B rearward after placing the rear ends of the split tables 15A and 15B on the draft member 35 via the guided members 26 and 26H. The tables 15A and 15B can be easily mounted in a stable posture, and the workability of table replacement is improved.

At this time, the guided members 26, 26H
Does not come into contact with the guide member 35 as shown in FIG. In this way, the division tables 15A and 15B
, The guided members 26 and 26H are not in contact with the guide member 35, and the engaging portion 26a is supported by the rubber supporting member 32. Therefore, the main body frame generated during the sewing operation The vibration on the first side is less likely to be transmitted to the split tables 15A and 15B via the support member 32,
The vibration noise caused by the vibration of the divided tables 15A and 15B can be remarkably reduced.

Next, a description will be given of a modified form in which various modifications are made to the above embodiment. 1] The sewing table 15 may be composed of a plurality of divided tables of three or more. 2] The support member 32 may be made of synthetic resin having elasticity in addition to rubber. 3] The guide member 35 may have a polygonal shape such as a semicircular cross section or a triangular shape, and the fitting hole 32b of the support member 32 and the guided member 26 similarly have a semicircular cross section, a triangular shape, or the like. It may be prismatic.

4] Separately from the guided members 26 and 26H, an engaging member is provided near the rear end of the divided table so as to project rearward from the rear end, and the rear end portion of the engaging member is fitted in the fitting hole of the supporting member. May be positioned and supported in the fitted state. 5] The present invention should not be construed as being limited to the above-described embodiments and modifications, and various modifications are added within a range not departing from the gist of the present invention, and various multi-head embroidery sewing machines. The present invention can be applied to the table mechanism.

[0035]

According to the invention of claim 1, a plurality of division tables, which comprises a sewing machine main body, a work cloth feed mechanism, and a main body frame, and constitute a sewing table, a guided member, an engaging member, and a guiding member. Since the operator installs the rear end of the split table on the guide member through the guided member and then pushes the split table backward, the operator can mount the split table in a stable posture. It can be performed easily and easily, and the workability of installation work is improved.

When removing the division table,
The connection between the engaging member and the fitting hole of the support member can be quickly released simply by lifting the front side of the split table and pulling out the split table to the front side, and then the guided member moves forward while being guided by the guide member. Therefore, the split table can be easily removed in a stable posture.

According to the invention of claim 2, the same effect as in claim 1 is obtained, but since the supporting member is made of an elastic member made of rubber or synthetic resin, the engaging member is made of rubber or synthetic resin. Since it is connected to the main body frame via the elastic member, the vibration on the main body frame side generated during the sewing work is less likely to be transmitted to the divided table, and the vibration and vibration noise of the divided table can be significantly reduced.

According to the invention of claim 3, claim 1 or 2
Although the same effect as described above is obtained, since the guided member and the engaging member are integrally formed of a metal plate, the guided member and the engaging member can be integrally formed of the metal plate, The number of parts can be reduced, and the work of attaching the guided member and the engaging member to the split table can be simplified.

According to the invention of claim 4, the same effect as in any one of claims 1 to 3 is obtained, but the division table is
The support member is configured to be switchable between a first level position where a material can be sewn and a second level position which is lowered by a predetermined distance from the first level position, and the support member has the first level position and the second level position. Since the two supporting members are provided corresponding to the above, the split table is mounted at the first level position by supporting the engaging member by the support member at the first level position via the guide of the guided member. The split table can be attached to the second level position by supporting the engaging member with the support member at the second level position.

[Brief description of drawings]

FIG. 1 is a perspective view of a multi-head embroidery sewing machine according to an embodiment of the present invention.

FIG. 2 is a plan view of a sewing table.

FIG. 3 is a schematic front view of a multi-head embroidery sewing machine.

FIG. 4 is a schematic side view of a multi-head embroidery sewing machine.

FIG. 5 is a perspective view of a table mechanism.

6 is a vertical sectional side view taken along line FF of FIG.

[Explanation of symbols]

M Multi-head embroidery sewing machine M1-M4 multi-needle embroidery sewing machine (sewing machine main body) 1 body frame 15 sewing table 15A division. table 15B split table 20 Front-rear feed frame 21 Left and right feed frame 25 table mechanism 26 Guided member 26a engaging part 30 fixing member 32 Support member 35 Guide member

Claims (4)

[Claims] 1. A multi-head embroidery sewing machine including a plurality of sewing machine main bodies, a work cloth feed mechanism shared by the plurality of sewing machine main bodies, and a main body frame, wherein a sewing table of the plurality of sewing machine main bodies is configured. A plurality of divided tables, a guided member provided in a protruding shape downwardly near the rear end of each divided table, and an engagement member provided in a protruding shape rearward from the rear end in the vicinity of the rear end of each divided table. A guide member attached to the main body frame, capable of receiving a guided member and horizontally guided in the front-rear direction, and a fitting hole for horizontally fitting the rear end portion of the engaging member provided in the main body frame from the front. A table mechanism for a multi-head embroidery sewing machine, comprising: a support member having and supporting a rear end portion of the engagement member in a fitted state. 2. The table mechanism of a multi-head embroidery sewing machine according to claim 1, wherein the support member is made of an elastic member made of rubber or synthetic resin. 3. The table mechanism for a multi-head embroidery sewing machine according to claim 1, wherein the guided member and the engaging member are integrally formed of a metal plate. 4. The division table is configured to be position-switchable between a first level position where a material can be sewn and a second level position which is lowered from the first level position by a predetermined distance, and the support member is , Two corresponding to the first level position and the second level position are provided.
The table mechanism of the multi-head embroidery sewing machine according to any one of 3 to 3.