CN106835533B

CN106835533B - Transmission device of template sewing machine

Info

Publication number: CN106835533B
Application number: CN201710252458.XA
Authority: CN
Inventors: 张春木; 洪鹏; 余启刚
Original assignee: Zhejiang Nicerbt Electromechanical Technology Co ltd
Current assignee: Zhejiang Nicerbt Electromechanical Technology Co ltd
Priority date: 2017-04-18
Filing date: 2017-04-18
Publication date: 2022-09-02
Anticipated expiration: 2037-04-18
Also published as: CN106835533A

Abstract

The invention provides a transmission device of a template sewing machine, and belongs to the technical field of sewing machines. It has solved the problem that current template sewing machine's transmission takes place to rock easily. This template sewing machine's transmission, including shell body and connecting plate, the shell body is rectangular shape, be provided with the action wheel in the shell body, from the driving wheel, hold-in range and slide rail, still be fixed with driving motor on the shell body, driving motor's pivot links to each other with the action wheel, the connecting plate is including being rectangular shape and being located the sliding part in the shell body and stretching out the connecting portion of shell body, the one end that driving motor was kept away from to the sliding part is fixed with sliding component one, the one end that the sliding part is close to driving motor is fixed with sliding component two, sliding component one and sliding component two all with slide rail sliding connection, and sliding component one presss from both sides tightly to be fixed on the hold-in range, driving motor is located the position department that is close to the middle part on the shell body. The transmission device of the template sewing machine enables the template to move more stably.

Description

Transmission device of template sewing machine

Technical Field

The invention belongs to the technical field of sewing machines, relates to a template sewing machine, and particularly relates to a transmission device of the template sewing machine.

Background

The template sewing machine is used for full-automatic template application production by combining clothing template CAD software, clothing template sewing CAD software and an advanced numerical control technology, is beneficial to full-automatically finishing clothing sewing, promotes the clothing template process pipelining, and improves the production efficiency and the product quality.

The template machine needs to drive the template to move relative to the machine head through the template conveying device to finish sewing of the cloth in the template. For example, chinese patents [ application No. 201410028563.1; the utility model discloses a template sewing machine's template drive mechanism, which comprises a frame, a workbench, the transmission seat, the transmission shaft, motor one, the template, the centre gripping subassembly, the transmission rail, motor two and motor controller, motor one is linked together through transmission shaft and transmission seat and can drives the transmission seat and translate along Y to the front and back, the transmission rail sets up on the transmission seat, the template setting is connected on the transmission rail through the centre gripping subassembly on the workstation, motor two is linked together with the transmission rail and can drives the centre gripping subassembly and translate along X to the left and right sides. And a left Y-direction synchronous belt and a right Y-direction synchronous belt are symmetrically arranged at two ends of the transmission shaft. The transmission rail is provided with an X-direction synchronous belt, the X-direction synchronous belt is provided with a fixed block capable of driving the clamping assembly to horizontally move left and right along the X direction, and the clamping assembly is connected to the fixed block through the fixed plate.

The X-direction synchronous belt of the template transmission mechanism drives the clamping assembly to move along the X direction, so that the template is driven to move along the X direction. The X-direction synchronous belt and the clamping assembly are connected to the fixing block through the fixing plate, the fixing block is clamped on the X-direction synchronous belt, and a motor II for driving the X-direction synchronous belt to move is mounted on one side of the template transmission mechanism. The template transmission mechanism adopting the synchronous belt has the following problems: 1. the grip block has certain length to the hold-in range direction along X to the centre gripping subassembly on the grip block often carries out the centre gripping through two at least points pair template, only can't play effectual support and guide effect to the grip block on X to the hold-in range through a fixed block centre gripping, leads to the in-process of template motion to appear rocking easily. 2. The second motor is arranged on one side of the transmission mechanism, and the gravity center of the transmission mechanism deviates to one side due to the large weight of the second motor, so that the dynamic balance of the template transmission mechanism is not ideal;

as another example, chinese patent [ application No. 201120424414.9; the publication No. CN 202323359U discloses a template rotating device of a template conveying sewing machine, wherein a driving piece of an X-direction transmission mechanism of the template rotating device comprises a main driving wheel and a driven driving wheel, the main driving wheel is fixedly connected to a rotating shaft of a motor, the driven driving wheel is connected to the bottom of a workbench, and a transmission belt is sleeved on the main driving wheel and the driven driving wheel. The poking piece comprises a first plate body and a second plate body, wherein the first plate body is connected with the second plate body through a fastening piece to tightly press the transmission belt between the first plate body and the second plate body. Thereby realize the hold-in range and drive the template through stirring the piece and slide along X direction.

Although the shifting piece of the X-direction transmission mechanism is positioned at the upper half part of the synchronous belt, the shifting piece still lacks effective guide, and the problem that the template transmission mechanism is easy to shake is not solved.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a transmission device of a template sewing machine.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a template sewing machine's transmission, includes shell body and connecting plate, the shell body is rectangular shape, be provided with the action wheel in the shell body, follow driving wheel, hold-in range and slide rail, still be fixed with driving motor on the shell body, driving motor's pivot links to each other with the action wheel, a serial communication port, the connecting plate is including being rectangular shape and being located the sliding part in the shell body and stretching out the connecting portion of shell body, the one end that driving motor was kept away from to the sliding part is fixed with sliding component one, the one end that the sliding part is close to driving motor is fixed with sliding component two, sliding component one and sliding component two all with slide rail sliding connection, and sliding component one presss from both sides tightly to be fixed on the hold-in range, sliding component two is unfixed with the hold-in range, driving motor is located the position department that is close to the middle part on the shell body.

The connecting plate of the transmission device of the template sewing machine is in a strip shape, and two ends of the sliding part of the connecting plate are respectively and fixedly connected with the first sliding assembly and the second sliding assembly. The first sliding assembly is clamped and fixed on the synchronous belt, so that the synchronous belt can drive the connecting plate to slide, the second sliding assembly close to the driving motor is unfixed to the surface of the synchronous belt, the second sliding assembly can move continuously after moving to the position where the driving motor is located, and the connecting plate cannot move continuously until the first sliding assembly reaches the position where the driving motor is located. And, the first sliding component and the second sliding component are both connected with the sliding rail in a sliding manner, and play a role in supporting and guiding the two ends of the connecting plate at the same time, so that the connecting plate is not easy to shake in the moving process, and the movement of the template is more stable.

Compare with two sliding component all with the tight fixed scheme of hold-in range clamp, this template sewing machine's transmission can possess under the same movement distance's of connecting plate condition for hold-in range length is shorter, reduces the extension power of hold-in range, and the slight of reducing hold-in range emergence is rocked and is leaded to template offset. And the driving motor can keep a certain distance with the end part of the shell body, so that the driving motor is closer to the middle part of the shell body, the gravity center of the transmission device moves towards the geometric center, the dynamic balance performance of the transmission device is improved, and the template is prevented from shaking due to unstable gravity center when the transmission device works. Therefore, compared with the existing transmission device adopting the synchronous belt, the stability of the transmission device adopting the structure is obviously improved.

In the transmission device of the template sewing machine, a gap is formed between the second sliding component and the synchronous belt. The second sliding assembly is not in contact with the synchronous belt all the time, so that the swinging of the connecting plate caused by the separation of the second sliding assembly from the synchronous belt is avoided, and the whole process that the transmission device drives the template to move is kept stable.

In the transmission device of the template sewing machine, the distance between the driving motor and the end part of the shell is smaller than or equal to the distance between the two outermost ends of the sliding assembly and the position of the sliding assembly for clamping the synchronous belt. The distance between the driving motor and the end part of the outer shell can be adjusted in the range according to actual requirements, so that the structure and the dynamic balance performance of the transmission device are optimized, and the transmission stability is improved.

In the transmission device of the template sewing machine, the first sliding component comprises a first sliding seat located at the outward surface of the synchronous belt, a fixed pressing block is arranged on the inward surface, opposite to the position of the first sliding seat, of the synchronous belt, the surface, contacted with the synchronous belt, of the fixed pressing block is a toothed surface, and the fixed pressing block is fixed with the first sliding seat through a screw and clamps the synchronous belt. The synchronous belts are arranged on the driving wheel and the driven wheel to form surrounding arrangement, the surfaces of the outer sides of the upper and lower layers of synchronous belts are called outward surfaces, and the inner surfaces of the upper and lower layers of synchronous belts are inward surfaces; the profile of tooth face on the decide briquetting can with the interlock of the internal tooth of hold-in range to thereby further compress tightly the hold-in range and make the tooth root position of hold-in range take place to warp and firmly press from both sides tight hold-in range, avoid hold-in range and slide to take place to skid, improve driven stability.

Preferably, in the transmission device of the template sewing machine, a gap is formed between the first sliding seat and the synchronous belt, the sliding part of the connecting plate is fixed on the first sliding seat through a screw, the first sliding seat is used for fixing the position of the sliding part to be sunken so that a gap is formed between the sliding part and the synchronous belt, the first sliding seat is further provided with a pressing boss protruding towards the surface of the synchronous belt, and the pressing boss and the fixed pressure block are oppositely clamped on the synchronous belt. By the structure, when the fixed pressure block does not move to the position of the driving motor, the sliding seat can still continuously slide, so that the length of the synchronous belt is further reduced; on the other hand, the synchronous belt is clamped through the compression boss on the sliding seat I and the fixed pressure block, so that the synchronous belt is clamped more firmly, and the transmission device drives the template to move more stably.

Preferably, in the transmission device of the template sewing machine, the first sliding seat is provided with strip-shaped holes penetrating through the upper surface and the lower surface at positions close to the two sides, the inward surface of the first synchronous belt opposite to the strip-shaped holes on the first sliding seat is provided with a movable pressing block, the surface of the movable pressing block contacting with the synchronous belt is a tooth-shaped surface, the upper surface of the first sliding seat facing the synchronous belt is further provided with a sliding block, the bottom of each strip-shaped hole is provided with a strip-shaped pressing plate, and the movable pressing block penetrates through the strip-shaped holes through screws to be screwed into the corresponding pressing plate and the sliding block to fix and clamp the synchronous belt. The movable pressing block and the sliding block clamp the synchronous belt, so that the synchronous belt is better clamped and fixed on the first sliding seat; and, make slider and dynamic pressure piece can slide for slide one through suitable unscrewing screw, but not remove the centre gripping to the hold-in range, the position that moves the hold-in range this moment can carry out the translation adjustment along the bar hole to change the hold-in range and adjusted to suitable value by the relative position of clamping part and decide the briquetting with the rate of tension of hold-in range, thereby make the hold-in range drive the template motion more steady.

Preferably, in the transmission device of the stencil sewing machine, the slider has a notch at a position between the strip holes, the slider has a protrusion capable of sliding in the notch, and the slider is screwed on the slider by an adjusting screw through an end face of the protrusion to be fixed to the slider. After the screw on the dynamic pressure piece is loosened appropriately, the sliding block and the dynamic pressure piece can slide along the strip-shaped hole through the adjusting screw, so that the tension of the synchronous belt is adjusted more conveniently, and the sliding block and the dynamic pressure piece slide more smoothly due to the matching of the lug boss and the side wall of the notch.

In foretell template sewing machine's transmission, sliding component two includes slide two, have the clearance between slide two and the hold-in range, the sliding part of connecting plate passes through the fix with screw on slide two, it is sunken to make also to have the clearance between sliding part and the hold-in range to be used for fixed sliding part department on the slide two. The second sliding seat and the sliding part can smoothly slide over the position where the driving motor is located.

As a scheme of slide rail, in foretell template sewing machine's transmission, the slide rail is rectangular shape, the slide rail both sides all have the mounting groove, inlay respectively in the mounting groove and be equipped with and be cylindric guide rail billet, be provided with respectively on slide one and the slide two and be located the slide rail both sides and with the leading wheel that above-mentioned guide rail billet position corresponds, the circular arc guide way that matches with the guide rail billet shape has on the global of leading wheel, the outer wall of guide rail billet can with correspond the contact of circular arc guide way inner wall. Through setting up the rail billet in slide rail both sides, the straightness accuracy of rail billet guarantees more easily, and leading wheel and rail billet complex guide structure make better to the guide effect of slide one and slide two to make the template motion more steady.

Preferably, in the transmission device of the template sewing machine, the first sliding seat or the second sliding seat is provided with at least one blind hole, the bottom of the blind hole is provided with a yielding hole with a diameter larger than the outer diameter of the screw, an eccentric adjusting sleeve is embedded in the blind hole, the eccentric adjusting sleeve is provided with an eccentric screw hole, and the guide wheel corresponding to the blind hole on the first sliding seat or the second sliding seat is screwed into the eccentric screw hole through the yielding hole by a screw. Through rotating eccentric adjusting sleeve, adjust the distance of leading wheel and guide rail billet to suitable value for the inner wall of the convex guide way of leading wheel can fully contact with the outer wall of guide rail billet, guarantees the direction effect.

Further preferably, in the above-described transmission device for a stencil sewing machine, the eccentric adjustment sleeve further has at least one adjustment hole on an upper surface thereof. Set up the regulation hole and both can insert the convenient eccentric adjusting collar that rotates of regulation hole through the instrument, can judge the position of eccentric screw hole according to the position of regulation hole again, be convenient for to the regulation of leading wheel and guide rail billet position.

As another scheme of the slide rail, in the transmission device of the template sewing machine, the slide rail is in a long strip shape, guide grooves are formed in both sides of the slide rail, guide wheels which are located on both sides of the slide rail and correspond to the guide grooves are respectively arranged on the first slide seat and the second slide seat, and the guide wheels partially extend into the corresponding guide grooves and can roll in the guide grooves.

In foretell template sewing machine's transmission, the opening of stepping down has on the shell body, connecting portion on the connecting plate stretch out the opening of stepping down, slide one is close to the open one side of stepping down and has connecting block one, slide two is close to the open one side of stepping down and has connecting block two, connecting block one and connecting block two homoenergetic stretch out the opening of stepping down. Through the arrangement of the first connecting block and the second connecting block, the clamping device for installing the template is connected with the first sliding seat and the second sliding seat, so that the bearing capacity of the transmission device for the template is improved, and the template can move more stably.

Compared with the prior art, the transmission device of the template sewing machine has the advantages that:

1. this template sewing machine's transmission's connecting plate is rectangular shape, through the sliding part both ends with the connecting plate respectively with sliding component one and two fixed connection of sliding component, sliding component one and two and guide rail sliding connection play support and guide effect simultaneously to the both ends of connecting plate for the connecting plate is difficult to take place to rock in the motion process, and then makes the template motion more steady.

2. This template sewing machine's transmission's slip subassembly is pressed from both sides tightly to be fixed on the synchronous belt, the slip subassembly second that is close to driving motor then has unfixed with the synchronous belt surface, thereby make slip subassembly second move can also continue the motion after the position at driving motor place, make hold-in range length shorter under the condition of the same stroke, thereby driving motor more is close to the shell body middle part and makes the transmission focus move towards geometric centre, make transmission's structure more reasonable, the stability that transmission drove the template motion has further been improved.

3. A fixed pressing block and a dynamic pressing block are arranged on a sliding seat I of a sliding assembly I in the transmission device of the template sewing machine, so that clamping of the synchronous belt is more reliable, and the tension of the synchronous belt is more convenient to adjust through the dynamic pressing block.

Drawings

FIG. 1 is a schematic perspective view and a partially enlarged view of a driving device of the stencil sewing machine.

FIG. 2 is a schematic and partially enlarged view of the construction of the transmission housing of the stencil sewing machine.

FIG. 3 is a partial schematic view of the transmission of the stencil sewing machine with the outer housing and the drive motor removed.

FIG. 4 is a schematic view showing the installation relationship of the first sliding member in the driving unit of the stencil sewing machine.

FIG. 5 is a schematic perspective view of a first sliding base in the transmission device of the template sewing machine.

FIG. 6 is a schematic perspective view of a slider in the transmission of the stencil sewing machine.

In the figure, 1, an outer shell; 1a, a abdication opening; 2. a connecting plate; 2a, a sliding part; 2b, a connecting part; 3. a driving wheel; 4. a driven wheel; 5. a synchronous belt; 6. a slide rail; 6a, mounting grooves; 7. a drive motor; 8. a first sliding component; 8a, a first sliding seat; 8a1, compression boss; 8a2, a strip hole; 8a3 and a first connecting block; 8a4, notch; 8b, fixing and pressing a block; 8c, moving a pressing block; 8d, a sliding block; 8d1, boss; 8d2, adjusting screw mounting holes; 8d3, accommodating groove; 8e, pressing a plate; 9. a second sliding component; 9a, a second sliding seat; 9a1 and a second connecting block; 10. a guide rail steel bar; 11. a guide wheel; 11a, an arc guide groove; 12. blind holes; 13. a hole of abdication; 14. an eccentric adjusting sleeve; 14a, eccentric screw holes; 14b, adjusting holes; 15. an adjusting screw; 16. an anti-drop sheet.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

The first embodiment is as follows:

the transmission device of the template sewing machine comprises an outer shell 1, a connecting plate 2, a driving wheel 3, a driven wheel 4, a synchronous belt 5, a sliding rail 6, a driving motor 7 and a sliding assembly.

Specifically, as shown in fig. 1, the outer casing 1 is in a strip shape, the driving motor 7 is installed on the outer casing 1, and one side of the outer casing 1 further has a strip-shaped abdicating opening 1 a. As shown in fig. 2, in the present embodiment, the number of the sliding assemblies is two, wherein the sliding assembly one 8 is away from the driving motor 7, and the sliding assembly two 9 is close to the driving motor 7. The driving wheel 3 and the driven wheel 4 are both rotatably connected in the shell body 1, the synchronous belt 5 is arranged on the driving wheel 3 and the driven wheel 4, and the rotating shaft of the driving motor 7 is connected with the driving wheel 3, so that the driving motor 7 drives the synchronous belt 5 to move through the driving wheel 3. Connecting plate 2 is including being rectangular shape and being located the sliding part 2a of shell body 1 and stretching out the connecting portion 2b of stepping down opening 1a, and equal sliding connection of sliding component 8 and two 9 of sliding component is on slide rail 6 in shell body 1, sliding part 2a one end and sliding component 8 fixed connection, the other end and two 9 fixed connection of sliding component for hold-in range 5 drives connecting plate 2 through sliding component 8 and two 9 of sliding component and slides. The first sliding assembly 8 is clamped and fixed on the synchronous belt 5, and the second sliding assembly 9 is not fixed on the surface of the synchronous belt 5.

As shown in fig. 2 and 3, the timing belts 5 are installed on the driving pulley 3 and the driven pulley 4 to form a circumferential arrangement, the outer surfaces of the upper and lower timing belts 5 are referred to as outward surfaces, and the inner surfaces of the upper and lower timing belts 5 are referred to as inward surfaces. The first sliding assembly 8 comprises a first sliding seat 8a and a first fixed pressing block 8b, the first sliding seat 8a is located on the outer facing surface of the synchronous belt 5, the second fixed pressing block 8b is located on the inner facing surface of the synchronous belt 5 opposite to the first sliding seat 8a, the first fixed pressing block 8b and the first sliding seat 8a clamp the synchronous belt 5 in the middle, and the synchronous belt 5 is clamped on the first sliding seat 8a through screwing of a screw penetrating through the second fixed pressing block 8 b. The surface that decides 8b of briquetting and hold-in range 5 contact is the profile of tooth face, and the profile of tooth face on the deciding briquetting 8b can interlock with the internal tooth (not shown in the figure) of hold-in range 5 to thereby further compress tightly hold-in range 5 and make the tooth root position of hold-in range 5 take place to warp and tightly press from both sides hold-in range 5, avoid hold-in range 5 and slide 8a to take place to skid, improve driven stability.

Preferably, as shown in fig. 3, a gap is formed between the first slider 8a and the timing belt 5, the sliding portion 2a of the link plate 2 is fixed to the first slider 8a by a screw, the first slider 8a is recessed to fix the sliding portion 2a, so that a gap is formed between the sliding portion 2a and the timing belt 5, the first slider 8a is further provided with a pressing protrusion 8a1 protruding toward the surface of the timing belt 5, and the pressing protrusion 8a1 and the pressing block 8b are positioned to clamp the timing belt 5. By adopting the structure, when the fixed pressing block 8b does not move to the position of the driving motor 7, the sliding seat I8 a can still continuously slide, and the length of the synchronous belt 5 is further reduced; on the other hand, the pressing boss 8a1 on the first sliding seat 8a and the fixed pressing block 8b clamp the synchronous belt 5, so that the synchronous belt 5 is clamped more firmly, and the transmission device drives the template to move more stably.

Preferably, as shown in fig. 5, the first slide carriage 8a has strip-shaped holes 8a2 penetrating the upper and lower surfaces at positions near both sides. As shown in fig. 2 and 3, a movable pressing block 8c is arranged on the inward surface of the synchronous belt 5 opposite to the strip-shaped hole 8a2 on the first sliding seat 8a, a sliding block 8d is further arranged on the upper surface of the first sliding seat 8a facing the synchronous belt 5, a long-strip-shaped pressing plate 8e is arranged at the bottom of each strip-shaped hole 8a2, the movable pressing block 8c penetrates through the strip-shaped hole 8a2 through screws and is screwed into the corresponding pressing plate 8e to be fixed with the sliding block 8d and clamp the synchronous belt 5, the surface of the movable pressing block 8c, which is in contact with the synchronous belt 5, is a toothed surface, and the movable pressing block 8c and the sliding block 8d clamp the synchronous belt 5, so that the synchronous belt 5 is better clamped and fixed on the first sliding seat 8 a.

As a further preferable mode, as shown in fig. 5 and 6, the slide base 8a has a notch 8a4 at a position between the strip-shaped holes 8a2, the slider 8d has a protrusion 8d1 capable of sliding in the notch 8a4, the slider 8d further has an adjusting screw mounting hole 8d2 penetrating through the protrusion 8d1 in a direction parallel to the strip-shaped hole 8a2, and the adjusting screw 15 is screwed on the slide base 8a through the adjusting screw mounting hole 8d2 to fix the slider 8d with the slide base 8 a. Through the cooperation of the convex part 8d1 and the side wall of the notch 8a4, the sliding block 8d and the movable pressing block 8c can slide more smoothly, and the convex part 8d1 is arranged to provide enough arrangement space for the adjusting screw mounting hole 8d2, so that the connection strength of the adjusting screw 15 is ensured, and the convenience in screwing is ensured. As shown in fig. 6, the position that slider 8d and hold-in range 5 correspond still has the holding groove 8d3 that can supply hold-in range 5 embedding, can play the limiting action to the lateral part skew to hold-in range 5 position through the setting, guarantees that hold-in range 5 can not take place the position skew in accommodation process.

The principle of adjusting the tightness of the synchronous belt 5 is as follows: the screw on the pressing block 8c is appropriately loosened so that the sliding block 8d and the movable pressing block 8c can slide relative to the sliding seat I8 a, clamping of the synchronous belt 5 is not released, the sliding block 8d and the dynamic pressing block 8c can slide along the strip-shaped hole 8a2 through the adjusting screw 15, the relative position of the clamped part of the synchronous belt 5 and the fixed pressing block 8b is changed, the tension degree of the synchronous belt 5 is adjusted to a proper value, and therefore the synchronous belt 5 drives the template to move more stably.

As shown in fig. 3, the second sliding assembly 9 includes a second sliding seat 9a, a gap is formed between the second sliding seat 9a and the timing belt 5, the sliding portion 2a of the connecting plate 2 is fixed on the second sliding seat 9a by a screw, and a recess for fixing the sliding portion 2a on the second sliding seat 9a allows a gap to be formed between the sliding portion 2a and the timing belt 5.

As shown in fig. 2, in the present embodiment, the slide rail 6 is in a long strip shape, both sides of the slide rail 6 are provided with mounting grooves 6a, the mounting grooves 6a penetrate through both ends of the slide rail 6, and the rail steel strip 10 is in a cylindrical shape and is inserted into the mounting grooves 6a from one end of the slide rail 6. Four guide wheels 11 are respectively arranged on the first sliding seat 8a and the second sliding seat 9a, and the two guide wheels 11 are a group and are respectively positioned at two sides of the sliding rail 6 and matched with the guide rail steel bars 10 at corresponding positions. The guide wheel 11 has a circular arc guide groove 11a on the circumferential surface thereof, which is matched with the shape of the guide steel bar 10, and the outer wall of the guide steel bar 10 can contact with the inner wall of the corresponding circular arc guide groove 11 a. Through set up rail steel strip 10 in 6 both sides of slide rail, rail steel strip 10's straightness accuracy guarantees more easily, and leading wheel 11 makes better to the direction effect of slide 8a and two 9a of slide with rail steel strip 10 complex guide structure to make the template motion more steady. Preferably, the end of the slide rail 6 is fixed with an anti-slip piece 16 by a screw, which limits the guide rail steel bar 10 and prevents the guide wheel 11 from separating from the guide rail steel bar 10.

Preferably, as shown in fig. 5, the first sliding seat 8a or the second sliding seat 9a is provided with two blind holes 12, and the bottom of the blind hole 12 is provided with a relief hole 13 with a diameter larger than the outer diameter of the screw. As shown in fig. 4, an eccentric adjusting sleeve 14 is embedded in the blind hole 12, an eccentric screw hole 14a is formed in the eccentric adjusting sleeve 14, and the guide wheel 11 corresponding to the blind hole 12 on the first sliding seat 8a or the second sliding seat 9a is screwed into the eccentric screw hole 14a through a screw passing through the abdicating hole 13. By rotating the eccentric adjusting sleeve 14, the distance between the guide wheel 11 and the guide rail steel bar 10 is adjusted to a proper value, so that the inner wall of the arc-shaped guide groove of the guide wheel 11 can be fully contacted with the outer wall of the guide rail steel bar 10, and the guide effect is ensured. As further preferred, as shown in fig. 4, the eccentric adjusting sleeve 14 further has three adjusting holes 14b on the upper surface thereof. The adjusting holes 14b are arranged, so that the eccentric adjusting sleeve 14 can be conveniently rotated by inserting a tool into the adjusting holes 14b, and the positions of the eccentric screw holes 14a can be judged according to the positions of the adjusting holes 14b, so that the positions of the guide wheel 11 and the guide rail steel bar 10 can be conveniently adjusted. In the actual production and production process, the number of blind holes 12 and adjusting holes 14b may be at least one.

As shown in fig. 1, the side of the first slide 8a close to the offset opening 1a has a first connecting block 8a3, the side of the second slide 9a close to the offset opening 1a has a second connecting block 9a1, and both the first connecting block 8a3 and the second connecting block 9a1 can extend out of the offset opening 1 a. Through setting up connecting block one 8a3 and connecting block two 9a1, will install the template clamping device and link to each other with slide one 8a and slide two 9a, increased the bearing capacity of transmission to the template for the template motion is more steady.

As shown in figures 1 and 2, the transmission device of the template sewing machine is structured such that the distance between the driving motor 7 and the end of the outer shell 1 is less than or equal to the distance between the outermost end of the second sliding assembly 9 and the position where the first sliding assembly 8 clamps the timing belt 5. Namely, the distance between the driving motor 7 and the end part of the outer shell 1 is less than or equal to the distance between the outermost end of the second sliding seat 9a and the fixed pressing block 8b on the first sliding seat 8 a. The distance between the driving motor 7 and the end part of the outer shell 1 can be adjusted in the range according to actual needs, so that the structure and the dynamic balance performance of the transmission device are optimized.

This template sewing machine's transmission's adoption hold-in range 5 can drive connecting plate 2 and slide, a slip subassembly 8 presss from both sides tightly to be fixed on hold-in range 5, two 9 of slip subassembly that are close to driving motor 7 then have the clearance with hold-in range 5 surface, make two 9 movements of slip subassembly can also continue the motion after the position at driving motor 7 place, when the position at driving motor 7 place is reachd to a slip subassembly 8, connecting plate 2 just reachs the unable motion that continues again of extreme position, under the condition that 2 possesses the same movement distance at the connecting plate, make hold-in range 5 length shorter, reduce hold-in range 5's extension power, it leads to the template offset to avoid hold-in range 5 to take place slight rocking from top to bottom. The driving motor 7 can keep a certain distance from the end part of the outer shell 1, so that the driving motor 7 is closer to the middle part of the outer shell 1, the gravity center of the transmission device moves towards the geometric center, the dynamic balance performance of the transmission device is improved, and the phenomenon that the gravity center of the transmission device is unstable during working to cause the template to shake is avoided. And, the first sliding assembly 8 and the second sliding assembly 9 are both connected with the sliding rail 6 in a sliding mode, and the two ends of the connecting plate 2 are supported and guided simultaneously, so that the connecting plate 2 is not prone to shaking in the moving process, and the template is made to move more stably.

Example two:

the technical solution in this embodiment is substantially the same as that in the first embodiment, except that, in this embodiment, the slide rail 6 is in a long strip shape, guide grooves are formed on both sides of the slide rail 6, the first slide seat 8a and the second slide seat 9a are respectively provided with guide wheels 11 which are located on both sides of the slide rail 6 and correspond to the guide grooves, and the guide wheels 11 partially extend into the corresponding guide grooves and can roll in the guide grooves.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A transmission device of a template sewing machine comprises a shell (1) and a connecting plate (2), wherein the shell (1) is in a long strip shape, a driving wheel (3), a driven wheel (4), a synchronous belt (5) and a sliding rail (6) are arranged in the shell (1), a driving motor (7) is further fixed on the shell (1), a rotating shaft of the driving motor (7) is connected with the driving wheel (3), the transmission device is characterized in that the connecting plate (2) comprises a sliding part (2a) which is in a long strip shape and is positioned in the shell (1) and a connecting part (2b) extending out of the shell (1), one end, away from the driving motor (7), of the sliding part (2a) is fixed with a first sliding assembly (8), one end, close to the driving motor (7), of the sliding part (2a) is fixed with a second sliding assembly (9), and the first sliding assembly (8) and the second sliding assembly (9) are both in sliding connection with the sliding rail (6), and the first sliding component (8) is clamped and fixed on the synchronous belt (5), the second sliding component (9) is not fixed with the synchronous belt (5), and the driving motor (7) is positioned on the outer shell (1) and is close to the middle part.

2. The template sewing machine transmission device according to claim 1, wherein a gap is provided between the second sliding assembly (9) and the timing belt (5).

3. The template sewing machine transmission device according to claim 1, characterized in that the distance between the driving motor (7) and the end of the outer shell (1) is less than or equal to the distance between the outermost end of the second sliding assembly (9) and the position of the first sliding assembly (8) clamping the synchronous belt (5).

4. The transmission device of the template sewing machine according to claim 1, wherein the first sliding assembly (8) comprises a first sliding seat (8a) positioned on the outward surface of the synchronous belt (5), a fixed pressing block (8b) is arranged on the inward surface of the synchronous belt (5) opposite to the position of the first sliding seat (8a), the surface of the fixed pressing block (8b) contacting with the synchronous belt (5) is a toothed surface, a pressing boss (8a1) protruding towards the surface of the synchronous belt (5) is further arranged on the first sliding seat (8a), the fixed pressing block (8b) is fixed with the first sliding seat (8a) through a screw, and the pressing boss (8a1) and the fixed pressing block (8b) clamp the synchronous belt (5) relatively.

5. The template sewing machine transmission device according to claim 4, characterized in that a gap is formed between the first slide seat (8a) and the timing belt (5), the sliding part (2a) of the connecting plate (2) is fixed on the first slide seat (8a) through a screw, and the first slide seat (8a) is recessed for fixing the sliding part (2a) so that a gap is formed between the sliding part (2a) and the timing belt (5).

6. The transmission device of the template sewing machine as claimed in claim 4, wherein the positions of the first sliding seat (8a) close to the two sides are respectively provided with a strip-shaped hole (8a2) penetrating through the upper surface and the lower surface, the inward surface of the synchronous belt (5) opposite to the strip-shaped hole (8a2) on the first sliding seat (8a) is provided with a movable pressing block (8c), the surface of the movable pressing block (8c) contacting with the synchronous belt (5) is a toothed surface, the upper surface of the first sliding seat (8a) facing the synchronous belt (5) is further provided with a sliding block (8d), the bottom of each strip-shaped hole (8a2) is provided with a strip-shaped pressing plate (8e), and the movable pressing block (8c) is screwed into the corresponding pressing plate (8e) through the strip-shaped hole (8a2) by screws to fix and clamp the synchronous belt (5) with the sliding block (8 d).

7. Transmission of template sewing machine according to claim 6, characterized in that the first slide (8a) has a notch (8a4) at the position between the slotted holes (8a2), the slider (8d) has a boss (8d1) sliding in the notch (8a4), the slider (8d) is screwed on the first slide (8a) and fixed with the first slide (8a) through the end face of the boss (8d1) by means of the adjusting screw (15).

8. The template sewing machine transmission device according to any one of claims 4 to 7, characterized in that the second sliding assembly (9) comprises a second sliding seat (9a), a gap is formed between the second sliding seat (9a) and the synchronous belt (5), the sliding part (2a) of the connecting plate (2) is fixed on the second sliding seat (9a) through a screw, and the position for fixing the sliding part (2a) on the second sliding seat (9a) is recessed, so that a gap is formed between the sliding part (2a) and the synchronous belt (5).

9. The transmission device of the template sewing machine according to claim 8, characterized in that the slide rail (6) is long, both sides of the slide rail (6) are provided with mounting grooves (6a), guide steel bars (10) which are cylindrical are embedded in the mounting grooves (6a), guide wheels (11) which are positioned on both sides of the slide rail (6) and correspond to the positions of the guide steel bars (10) are respectively arranged on the first slide seat (8a) and the second slide seat (9a), arc guide grooves (11a) matched with the shapes of the guide steel bars (10) are arranged on the peripheral surfaces of the guide wheels (11), and the outer walls of the guide steel bars (10) can be in contact with the inner walls of the corresponding arc guide grooves (11 a).

10. The transmission device of the template sewing machine according to claim 9, characterized in that at least one blind hole (12) is formed in the first sliding seat (8a) or the second sliding seat (9a), the bottom of the blind hole (12) is provided with an abdicating hole (13) with the diameter larger than the outer diameter of the screw, an eccentric adjusting sleeve (14) is embedded in the blind hole (12), the eccentric adjusting sleeve (14) is provided with an eccentric screw hole (14a), the guide wheel (11) corresponding to the blind hole (12) in position on the first sliding seat (8a) or the second sliding seat (9a) is screwed into the eccentric screw hole (14a) through the abdicating hole (13) by the screw, and the upper surface of the eccentric adjusting sleeve (14) is further provided with at least one adjusting hole (14 b).