CN214612998U - Bag mouth curling machine and rear tug device thereof - Google Patents

Abstract

The application discloses a bag mouth edge curling machine and a rear tug device thereof; the bag opening curling machine comprises a feeding belt, a feeding belt and a pressing belt, wherein the feeding belt is used for being attached to the upper surface of the cloth and conveying the cloth along a preset direction; the rear tug device comprises a supporting seat, a shaft hole is formed in the supporting seat, a rotatable rotating shaft is arranged in the shaft hole, one end of the rotating shaft is fixed with a power output wheel which is used for being attached to a feeding belt and is in transmission connection with the feeding belt, the other end of the rotating shaft is fixed with a rear tug which is used for being in contact with the upper surface of cloth, the linear speed of the rear tug is larger than or equal to the moving speed of the feeding belt, and supporting plates which are distributed at intervals are arranged below the rear tug. The rear tug device provided by the application can enable the stitch seam of cloth sewing to be more uniform, and reduce the defective rate when manufacturing a thin cloth pocket and an elastic cloth pocket; the feeding belt is used for controlling the rotation of the rear tug, and an independent power device and a control device do not need to be arranged for the rear tug, so that the cost is lower.

Description

Bag mouth curling machine and rear tug device thereof

Technical Field

The application relates to the technical field of clothing production equipment, in particular to a rear tug device. In addition, the application also relates to a bag opening curling machine comprising the rear tug device.

Background

With the continuous improvement of labor cost and the continuous improvement of the requirement of the sewing machine for removing skills, the sewing machine is automatically and rapidly moved forward at present. In the prior art, an automatic pocket mouth curling machine is used for carrying out transportation, curling and sewing operations on cloth to manufacture a pocket. The inventor finds in practice that for thin materials or cloth with high elasticity, the cloth can generate large deformation in the transportation process, so that the sewn stitches are dense at the front and loose at the back, the stitches are not uniform, the attractiveness is low, and the problem of high defective rate exists when a thin cloth pocket and an elastic cloth pocket are made.

In summary, how to reduce the defective rate of the thin cloth pocket and the elastic cloth pocket is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to provide a rear tug apparatus that reduces the defective rate in making thin cloth pockets and elastic cloth pockets; meanwhile, a separate power device and a control device are not required, and the cost is low. It is another object of the present application to provide a pocket hemming machine including the rear tug boat assembly described above.

In order to achieve the above purpose, the present application provides the following technical solutions:

the utility model provides a back tow boat device, is applied to sack beading machine, sack beading machine is including the upper surface that is used for laminating the cloth and along the pay-off belt of predetermineeing the direction and carrying the cloth, back tow boat device includes the supporting seat, the supporting seat is equipped with the shaft hole, be equipped with rotatable pivot in the shaft hole, pivot one end is fixed with and is used for laminating the pay-off belt and with the power take-off wheel that the pay-off belt transmission is connected, the pivot other end is fixed with the back tow boat that is used for contacting the cloth upper surface, the linear velocity of back tow boat is more than or equal to the removal speed of pay-off belt, the below of back tow boat is equipped with interval distribution's backup pad.

Optionally, the rear towing wheel support further comprises an adjusting screw for adjusting the distance between the support plate and the rear towing wheel, and the adjusting screw is connected with the support plate.

Optionally, a needle bearing is arranged between the rotating shaft and the supporting seat.

Optionally, the support comprises a support seat, and the support seat is connected with the support seat through a sliding mechanism.

Optionally, the guide assembly includes a fixing seat and a guide pin extending along the vertical direction, the upper end of the guide pin is fixedly connected with the fixing seat, the lower end of the guide pin is in sliding fit with the supporting seat, and the elastic part is a spring sleeved on the periphery of the guide pin and the lower end of the guide pin is abutted against the supporting seat.

Optionally, the device further comprises a pressure adjusting block and a spacing adjusting part; the pressure adjusting block is in sliding fit with the guide pin and is positioned between the fixed seat and the supporting seat; the distance adjusting part is connected with the pressure adjusting block and adjusts the distance between the pressure adjusting block and the supporting seat; the upper end of the elastic piece is abutted against the pressure adjusting block.

Optionally, the distance adjusting part comprises a pressure adjusting bolt and a pressure adjusting nut which are connected in a matched mode, the pressure adjusting nut is fixedly connected with the fixing seat, and the lower end of the pressure adjusting bolt is attached to the top face of the pressure adjusting block.

Optionally, the interval adjustment part includes the cylinder, the stiff end of cylinder with the supporting seat is connected or with the fixing base is connected, the expansion end of cylinder with the pressure adjustment piece is connected.

A bag mouth curling machine comprises a feeding device, a curling device used for curling cloth, a sewing machine used for sewing the cloth and any one of the rear tug devices; the feeding device comprises a feeding belt which is used for being attached to the upper surface of the cloth and conveying the cloth along a preset direction, and the hemming device, the sewing machine and the rear tug device are sequentially distributed along the preset direction.

Optionally, the feeding device further comprises a driving mechanism, a driving feeding wheel, a driven feeding wheel, a pressing device and a plurality of auxiliary feeding wheels, the driving mechanism is connected with the driving feeding wheel and controls the driving feeding wheel to rotate, the driving feeding wheel and the driven feeding wheel are respectively arranged at the front end and the rear end of the feeding belt and are wrapped by the feeding belt, the auxiliary feeding wheels are arranged between the driving feeding wheel and the driven feeding wheel, and the pressing device is connected with the auxiliary feeding wheels and presses the feeding belt on the upper surface of the crimping device.

Through above-mentioned scheme, the beneficial effect of the back tow boat device that this application provided lies in:

the application provides a back tow boat device includes the supporting seat, is equipped with the pivot in the supporting seat, and power take-off wheel and back tow boat are fixed respectively to the both ends of pivot, and the linear velocity of back tow boat is more than or equal to the translation rate of pay-off area, and the below of back tow boat is equipped with interval distribution's backup pad.

In the working process, the feeding belt of the bag mouth curling machine is attached to the upper surface of the cloth and controls the cloth to move along the preset direction, the power output wheel is attached to the feeding belt, the power output wheel and the feeding belt are driven by friction or a gear tooth structure and the like, the power output wheel is controlled to rotate by means of the feeding belt, and the power output wheel, the rotating shaft and the rear tug wheel are coaxially fixed, so that the power output wheel drives the rotating shaft to rotate in the shaft hole of the fixing seat, the rotating shaft drives the rear tug wheel to rotate, the support plate supports the cloth to the lower part of the rear tug wheel, the rear tug wheel is in contact with the upper surface of the cloth and drags the cloth to move along the preset direction, meanwhile, the linear velocity of the rear tug wheel is larger than or equal to the moving velocity of the feeding belt, therefore, the rear tug wheel can enable the stitch of the cloth to be more uniform, and the defective rate of making thin cloth pockets and elastic cloth pockets is reduced.

In addition, this application utilizes the power supply of the pay-off area that is used for transporting the cloth among the prior art as the rear tug, need not to be equipped with independent power device and controlling means for the rear tug, and the cost is lower.

In addition, it should be understood that the pocket hemming machine provided by the application comprises the rear tug device, and therefore the pocket hemming machine provided by the application also has the beneficial effects.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a bag mouth curling machine according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a feeding device and a rear tug device provided in the embodiment of the present application;

FIG. 3 is a schematic structural diagram of a rear tug apparatus according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural view of the fabric before being curled;

FIG. 5 is a schematic view of the structure of the cloth after curling;

the reference numbers in the figures are:

the device comprises a feeding device 100, a stepping motor 101, a main synchronous pulley 102, a synchronous belt 103, a synchronous pulley 104, a transmission shaft 105, a driving feeding wheel 106, a feeding belt 107, a pressing device 108, an auxiliary feeding wheel 109, an installation plate 110 and a driven feeding wheel 111;

a hemming device 200;

a sewing machine 300, a sewing zone 301;

the rear tug device 400, a support seat 401, a rotating shaft 402, a power output wheel 403, a rear tug 404, a support plate 405, an adjusting screw 406, a locking screw 407, an elastic piece 408, a fixed seat 409, a guide pin 410, a pressure adjusting block 411, a spacing adjusting part 412, a pressure adjusting bolt 4121 and a pressure adjusting nut 4122;

a discharge platform 500;

a cloth 600;

trace 700.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1, the present application provides a pocket hemming machine including a feeding device 100, a hemming device 200, a sewing machine 300, and a rear tug device 400.

The feeding device 100 includes a feeding belt 107, a lower surface of the feeding belt 107 can be attached to an upper surface of the fabric 600, and the fabric 600 is controlled by friction to move in a predetermined direction, so that the fabric 600 is conveyed.

The curling apparatus 200 is used to curl the cloth 600. Referring to fig. 4 and 5, the hemming of the cloth 600 means to turn the edge of the cloth 600 inward several times. The structure of the curling device 200 can refer to the prior art, and the detailed description is omitted here.

The sewing machine 300 is used for sewing the cloth 600, and particularly, for sewing at a hemming position of the cloth 600, and fixing the hemming by a sewing stitch 700. The structure of the sewing machine 300 can refer to the prior art, and the detailed description is omitted.

The hemming device 200, the sewing machine 300, and the rear tug device 400 are sequentially distributed in a preset direction.

In operation, the cloth 600 is placed on the discharging platform 500 and is first curled by the curling device 200. Then, the cloth 600 enters the sewing area 301 of the sewing machine 300 under the control of the feeding device 100, and reliable sewing is realized through the combined action of a feeding assembly consisting of a feed dog and a presser foot of the sewing machine 300 and the rear tug device 400; in this process, since the rear tug boat device 400 is disposed adjacent to the sewing machine 300 and the rear tug boat device 400 is located behind the sewing region 301 of the sewing machine 300, the cloth 600 is firstly sewn by the sewing machine 300 and then enters the working region of the rear tug boat device 400, and the rear tug boat device 400 holds the cloth 600 to move backward. Finally, the sewn cloth 600 is moved out of the workbench by the feeding device 100.

Referring to fig. 2, in an embodiment provided by the present application, the feeding device 100 further includes a driving mechanism, a driving feeding wheel 106, a driven feeding wheel 111, a pressing device 108, and a plurality of auxiliary feeding wheels 109. Wherein, the driving mechanism is connected with the driving feeding wheel 106 and controls the driving feeding wheel 106 to rotate; the driving feeding wheel 106 and the driven feeding wheel 111 are respectively arranged at the front end and the rear end of the feeding belt 107 and are wrapped by the feeding belt 107; the driving mechanism controls the feeding belt 107 to move through the driving feeding wheel 106 and the driven feeding wheel 111. The auxiliary feed wheel 109 is located between the driving feed wheel 106 and the driven feed wheel 111. The pressing device 108 can be a cylinder, an electric cylinder and the like, and can be fixed on the mounting plate 110, meanwhile, the driving end of the pressing device 108 is connected with the auxiliary feeding wheel 109, the auxiliary feeding wheel 109 is controlled to freely move up and down in the elongated slot of the mounting plate 110, and the feeding belt 107 is enabled to be tightly attached to the upper surface of the curling device 200 during operation through the effect of the pressing device 108.

Optionally, in an embodiment, the driving mechanism includes a stepping motor 101, a primary timing pulley 102, a timing belt 103, a timing pulley 104, and a transmission shaft 105, and the transmission shaft 105 is fixedly connected to the driving feed wheel 106.

Referring to fig. 3, the rear tug apparatus 400 provided by the present application includes a support base 401, a rotating shaft 402, a power take-off wheel 403, a rear tug 404 and a support plate 405.

The support base 401 is provided with a shaft hole extending in the horizontal direction.

The rotating shaft 402 is installed in the shaft hole of the support base 401, and the rotating shaft 402 can rotate relative to the support base 401.

The power output wheel 403 is fixed to the first end of the rotating shaft 402, the power output wheel 403 is attached to the feeding belt 107, and the two are in transmission connection, that is, the feeding belt 107 drives the power output wheel 403 to rotate through friction or a gear tooth structure or other means.

The second end of the rotating shaft 402 of the rear tug 404 is fixed, the rear tug 404 is used for contacting the upper surface of the cloth 600, and the power output wheel 403 needs to be matched with the feeding belt 107. The rear tug 404 is sized to be either substantially the same or slightly greater than the speed of the outer surface of the feed belt 107 at which the rear tug 404 is driven, depending on the linear velocity of the circumference of the rear tug 404. Since the rear tug 404 and the power take-off wheel 403 are fixed at both ends of the rotating shaft 402, the rotation speeds thereof are identical.

The support plate 405 is located below the rear tug 404, and the support plate 405 is spaced a predetermined distance from the rear tug 404.

The beneficial effect of above-mentioned structure lies in: the rear tug device 400 is arranged in the pocket mouth curling machine, so that the sewn stitch 700 is more attractive; the applicability is more strengthened, and the cloth 600 with thin material and larger elasticity is suitable. Meanwhile, the feeding belt 107 is used for driving the rear tug 404 to rotate, a power device and a control device do not need to be additionally arranged on the rear tug 404, and the cost is low; the rotation of the rear tug 404 depends on mechanical transmission, and the reliability is strong.

Further, in one embodiment, the rear tug assembly 400 further comprises an adjusting screw 406, and the adjusting screw 406 is connected with the support plate 405 and adjusts the distance between the support plate 405 and the rear tug 404. Specifically, the support plate 405 is fixed to the sewing machine 300 through a locking screw 407, and the vertical position of the support plate 405 is adjusted through an adjusting screw 406, so that the distance between the support plate 405 and the rear tug 404 is adjusted, the rear tug 404 and the power output wheel 403 are prevented from being inclined due to the thickness change of the cloth 600, and the smooth passing of the cloth 600 with different thicknesses is ensured.

Further, in one embodiment, the rear tug assembly 400 further comprises a bearing mounted between the shaft 402 and the support base 401 to facilitate rotation of the shaft 402. The bearing may be embodied as a needle bearing.

Further, in one embodiment, the rear tug assembly 400 further comprises a spring 408, and the spring 408 is connected with the support base 401 and applies a downward force to the support base 401. Specifically, the elastic member 408 may be a spring, an elastic cord, or other elastic member, which applies an acting force to the support base 401 through its elastic deformation, so that the rear tug 404 stably contacts the cloth 600.

Further, in one embodiment, the rear tug assembly 400 further comprises a guide assembly, the guide assembly is in sliding fit with the support base 401, and the sliding direction of the support base 401 is along the vertical direction. The guide assembly provides a guiding function for the supporting seat 401, so that the supporting seat 401 can move linearly in the vertical direction.

Alternatively, in one embodiment, the guide assembly may employ a guide rail and a slider to achieve linear movement of the support base 401.

Optionally, in another embodiment, the guide assembly includes a fixed seat 409 and a guide pin 410, an axis of the guide pin 410 extends in a vertical direction, an upper end of the guide pin 410 is fixedly connected with the fixed seat 409, and a lower end of the guide pin 410 is slidably fitted to the support seat 401. Specifically, during actual assembly, the fixing seat 409 may be fixed on the mounting plate 110 of the feeding device 100, so as to fix the entire rear tug boat device 400 on the feeding device 100; the fixing base 409 is adjustable in position along the surface of the supporting plate 405 in a front-rear direction, which is a conveying direction of the cloth 600. A mounting hole may be provided on the fixing base 409 to fix the guide pin 410 in the mounting hole of the fixing base 409. A sliding hole may be formed in the support base 401, and the support base 401 can precisely slide on the guide pin 410 by the sliding hole being engaged with the guide pin 410.

Optionally, in an embodiment, when the elastic element 408 is a spring, the elastic element 408 may be sleeved on the outer circumference of the guide pin 410, and the lower end of the elastic element 408 abuts against the supporting seat 401.

Optionally, in one embodiment, the rear tug device 400 further comprises a pressure adjustment block 411 and a spacing adjustment portion 412. Wherein, the pressure adjusting block 411 is in sliding fit with the guide pin 410, and the pressure adjusting block 411 is positioned between the fixed seat 409 and the supporting seat 401; the spacing adjusting part 412 is connected with the pressure adjusting block 411 and adjusts the spacing between the pressure adjusting block 411 and the supporting seat 401; the upper end of the elastic member 408 abuts against the pressure adjusting block 411. Specifically, the elasticity of the elastic member 408 can be adjusted by the up-and-down movement of the pressure adjusting block 411, so as to change the acting force of the elastic member 408 on the supporting seat 401, further adjust the contact force between the power output wheel 403 and the feeding belt 107, and adjust the pressure of the rear tug 404 on the cloth 600; and because the power output wheel 403 and the rear tug 404 are coaxially fixed, the contact force between the power output wheel 403 and the feeding belt 107 and the pressure of the rear tug 404 on the cloth 600 can be synchronously adjusted, and the adjusting process is simple and convenient.

Optionally, in an embodiment, the distance adjusting portion 412 includes a pressure adjusting bolt 4121 and a pressure adjusting nut 4122 that are connected in a matching manner, the pressure adjusting nut 4122 is fixedly connected to the fixing base 409, and a lower end of the pressure adjusting bolt 4121 is attached to the top surface of the pressure adjusting block 411. The pressure adjusting bolt 4121 is screwed to control the pressure adjusting bolt 4121 to move up and down, so as to adjust the up and down position of the pressure adjusting block 411, and the pressure adjusting bolt 4121 is locked by the pressure adjusting nut 4122 after the pressure is adjusted, so as to prevent the pressure adjusting bolt 4121 from loosening.

Optionally, in another embodiment, the distance adjusting part 412 includes an air cylinder, a fixed end of the air cylinder is connected to the supporting base 401 or the fixed base 409, and a movable end of the air cylinder is connected to the pressure adjusting block 411. The position of the pressure adjusting block 411 is controlled by the extension and contraction of the air cylinder.

It should be noted that the guide assembly is for linearly moving the support base 401 up and down, and if the rigidity of the elastic member 408 is high, the support base 401 can maintain relatively stable linear movement up and down without the guide assembly, and the guide assembly may be omitted. On the basis of the guiding assembly, if the thickness variation of the cloth 600 is not considered, the pressure adjusting block 411 may be omitted, and at this time, the upper end of the elastic member 408 is directly connected to the fixing seat 409.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The pocket hemming machine and the rear tug device thereof provided by the application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims (10)

1. A rear tug device (400) is applied to a pocket mouth curling machine, the pocket mouth curling machine comprises a feeding belt (107) which is used for attaching the upper surface of a cloth (600) and conveying the cloth (600) along a preset direction, it is characterized in that the rear tug device (400) comprises a supporting seat (401), the supporting seat (401) is provided with a shaft hole, a rotatable rotating shaft (402) is arranged in the shaft hole, one end of the rotating shaft (402) is fixed with a power output wheel (403) which is used for being attached to the feeding belt (107) and is in transmission connection with the feeding belt (107), the other end of the rotating shaft (402) is fixed with a rear tug (404) used for contacting the upper surface of the cloth (600), the linear speed of the rear tug (404) is greater than or equal to the moving speed of the feed belt (107), supporting plates (405) distributed at intervals are arranged below the rear tug (404).

2. The rear tug apparatus (400) of claim 1, further comprising an adjustment screw (406) for adjusting a distance between the support plate (405) and the rear tug (404), the adjustment screw (406) being coupled to the support plate (405).

3. The rear tug apparatus (400) of claim 1, wherein a needle bearing is provided between the shaft (402) and the support base (401).

4. The rear tug assembly (400) of any one of claims 1-3, further comprising a guiding assembly slidably engaged with the support base (401) with the sliding direction of the support base (401) in a vertical direction, and a resilient member (408) coupled with the support base (401) and applying a downward force to the support base (401).

5. The rear tug device (400) of claim 4, wherein the guiding assembly comprises a fixed seat (409) and a guiding pin (410) with an axis extending in a vertical direction, an upper end of the guiding pin (410) is fixedly connected with the fixed seat (409), a lower end of the guiding pin (410) is in sliding fit with the supporting seat (401), and the elastic member (408) is a spring sleeved on the periphery of the guiding pin (410) and the lower end of the spring abuts against the supporting seat (401).

6. The rear tug apparatus (400) of claim 5, further comprising a pressure adjustment block (411) and a spacing adjustment section (412); the pressure adjusting block (411) is in sliding fit with the guide pin (410), and the pressure adjusting block (411) is positioned between the fixed seat (409) and the supporting seat (401); the distance adjusting part (412) is connected with the pressure adjusting block (411) and adjusts the distance between the pressure adjusting block (411) and the supporting seat (401); the upper end of the elastic piece (408) is abutted against the pressure adjusting block (411).

7. The rear tug device (400) of claim 6, wherein the distance adjustment part (412) comprises a pressure adjustment bolt (4121) and a pressure adjustment nut (4122) which are in fit connection, the pressure adjustment nut (4122) is fixedly connected with the fixed seat (409), and the lower end of the pressure adjustment bolt (4121) is abutted with the top surface of the pressure adjustment block (411).

8. The rear tug device (400) of claim 6, wherein the spacing adjustment (412) comprises a cylinder, a fixed end of which is connected with the support base (401) or with the fixed base (409), and a movable end of which is connected with the pressure adjustment block (411).

9. A bag hemming machine, characterized by comprising a feeding device (100), a hemming device (200) for hemming a cloth (600), a sewing machine (300) for sewing the cloth (600), and a rear tug device (400) according to any one of claims 1 to 8; the feeding device (100) comprises a feeding belt (107) which is used for being attached to the upper surface of the cloth (600) and conveying the cloth (600) along a preset direction, and the hemming device (200), the sewing machine (300) and the rear tug device (400) are sequentially distributed along the preset direction.

10. A bag mouth curling machine according to claim 9, wherein the feeding device (100) further comprises a driving mechanism, a driving feeding wheel (106), a driven feeding wheel (111), a pressing device (108) and a plurality of auxiliary feeding wheels (109), the driving mechanism is connected with the driving feeding wheel (106) and controls the driving feeding wheel (106) to rotate, the driving feeding wheel (106) and the driven feeding wheel (111) are respectively arranged at the front end and the rear end of the feeding belt (107) and are wrapped by the feeding belt (107), the auxiliary feeding wheel (109) is arranged between the driving feeding wheel (106) and the driven feeding wheel (111), and the pressing device (108) is connected with the auxiliary feeding wheel (109) and presses the feeding belt (107) on the upper surface of the curling device (200).

Images