Automatic material moving connection device for waist head sewing, sewing equipment and method

Abstract

The application relates to an automatic material moving and connecting device for waist head sewing, a sewing device and a method, the automatic material moving and connecting device comprising a work platform, a material pressing mechanism, an in-out material moving mechanism and an electric control system, the material pressing mechanism comprising a waist head pressing plate, a lower pressing plate, an automatic connecting assembly, an upper pressing plate and a material pressing driving assembly, the waist head pressing plate being fixedly connected to the lower pressing plate, the lower pressing plate being fixedly connected to the upper pressing plate through the automatic connecting assembly, the automatic connecting assembly being capable of connecting or disconnecting the upper pressing plate and the lower pressing plate, the material pressing driving assembly being connected to the upper pressing plate, capable of driving the upper pressing plate to move up and down, and capable of enabling the waist head pressing plate to press down on the waist head placed on a waist head in-out path surface, the in-out material moving mechanism being capable of driving the upper pressing plate to move along the in-out material path, and when the upper pressing plate moves along the in-out material path, the waist head pressing plate with the pressed waist head can move along the waist head in-out path surface, and the electric control system controls the material pressing mechanism and the in-out material moving mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the sewing technical field, in particular to an automatic material moving and connecting device for waistband sewing, a sewing device and a method. BACKGROUND

[0002] In the field of jeans sewing, in the process of sewing the waistband of jeans, the two layers of cloth of the waistband need to be folded and buckled to each other, and then sewn. At present, a single waistband is folded and buckled by hand, and then placed into a sewing unit for manual sewing. The folding and buckling and the reasonable placement of the waistband into the sewing unit require a high skill level of the workers and take a long time, which seriously affects the production efficiency of the whole production line.

[0003] Therefore, in order to improve the sewing efficiency of the waistband of jeans and improve the production capacity of the factory, a technology for automatically moving the waistband and sewing with the sewing unit is needed. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present application is to provide an automatic material moving and connecting device for waistband sewing, a sewing device and a method, which can automatically move the waistband into and out of the sewing unit, realize automatic connection between the waistband feeding and discharging and sewing work, and improve the sewing efficiency.

[0005] To achieve the above-mentioned purpose, the present application provides an automatic material moving and connecting device for waistband sewing for moving the waistband into the sewing unit, which comprises a working platform, a pressing mechanism, an in-out material moving mechanism and an electric control system. The working platform is provided with a waistband in-out path surface for placing and moving the waistband, and the waistband can enter the sewing unit when moving on the waistband in-out path surface. The pressing mechanism comprises a waistband pressing plate, a lower pressing plate, an automatic connecting assembly, an upper pressing plate and a pressing driving assembly. The waistband pressing plate is provided with a plurality of sewing working grooves for waistband sewing, and is fixedly connected to the lower pressing plate. The lower pressing plate is fixedly connected to the upper pressing plate through the automatic connecting assembly. The automatic connecting assembly comprises a lower connecting structure arranged on the lower pressing plate and an upper connecting structure arranged on the upper pressing plate and matched with the lower connecting structure. The upper connecting structure and the lower connecting structure can be connected or disconnected. The pressing driving assembly is connected to the upper pressing plate and can drive the upper pressing plate to move up and down, and can make the waistband pressing plate press down on the waistband placed on the waistband in-out path surface. The in-out material moving mechanism can drive the upper pressing plate to move along the in-out material path, and when the upper pressing plate moves along the in-out material path, the waistband pressing plate with the pressed waistband can move along the waistband in-out path surface. The electric control system is connected to the automatic connecting assembly, the pressing driving assembly and the in-out material moving mechanism.

[0006] Further, one of the upper connecting structure and the lower connecting structure of the automatic connecting assembly comprises an electromagnet, and the other comprises a magnetic suction piece, the electric control system is connected with the electromagnet for controlling the on-off of the electromagnet.

[0007] Further, one of the upper connecting structure and the lower connecting structure of the automatic connecting assembly comprises a locking block, and the other comprises a plug rod and a locking driving part for driving the plug rod to move, the locking block is provided with a plug hole, the upper connecting structure and the lower connecting structure are connected when the plug rod is inserted into the plug hole of the locking block, and the upper connecting structure and the lower connecting structure are disconnected when the plug rod is pulled out of the plug hole, and the electric control system is connected with the locking driving part for control.

[0008] Further, the material pressing mechanism further comprises a butt joint positioning assembly, the butt joint positioning assembly comprises an upper positioning structure arranged on the upper pressing plate and a lower positioning structure arranged on the lower pressing plate, and the upper positioning structure and the lower positioning structure cooperate and limit the relative position of the upper pressing plate and the lower pressing plate in the horizontal direction when the upper connecting structure on the upper pressing plate is connected with the lower connecting structure on the lower pressing plate.

[0009] Further, one of the upper positioning structure and the lower positioning structure comprises a plurality of first wedge-shaped positioning blocks, and the other comprises a plurality of first wedge-shaped grooves corresponding to the first wedge-shaped positioning blocks, the corresponding first wedge-shaped positioning blocks and the first wedge-shaped grooves are matched in shape, the first wedge-shaped positioning blocks gradually increase in shape from top to bottom when arranged on the lower pressing plate, and gradually decrease in shape from top to bottom when arranged on the upper pressing plate, the corresponding first wedge-shaped positioning blocks and the first wedge-shaped grooves are kept in alignment when the upper connecting structure on the upper pressing plate is kept opposite to the lower connecting structure on the lower pressing plate, and the first wedge-shaped positioning blocks are inserted into the first wedge-shaped grooves and the side surfaces thereof abut against each other when the upper connecting structure and the lower connecting structure are connected.

[0010] Further, the first wedge-shaped positioning blocks are at least two, and the two first wedge-shaped positioning blocks extend along a straight line and are perpendicular to each other, and the cross section of the first wedge-shaped positioning blocks perpendicular to the straight line extension direction is trapezoidal.

[0011] Further, the material pressing driving assembly drives the upper pressing plate to move linearly, and the waist head pressing plate is located above the waist head entering and exiting path surface when the lower pressing plate is fixedly connected with the upper pressing plate.

[0012] The application further provides a sewing device for waist head sewing, which comprises a sewing unit and the automatic material moving and connecting device.

[0013] Further, the sewing unit is provided with a liftable movable pressing frame, the sewing machine can drive the pressing frame to move up and down, and the lower pressing plate is located below the pressing frame when the automatic material moving and connecting device drives the waist head to enter the sewing unit.

[0014] The present application also provides a sewing method for waistband sewing, which is performed by using the sewing device as described above, and comprises the following steps:

[0015] S1, in the initial state, the lower pressing plate of the pressing mechanism of the automatic material moving and connecting device is fixedly connected with the upper pressing plate through the automatic connecting assembly;

[0016] S2, the waistband entering and exiting path surface of the working platform is provided with a waistband placing position, and the folded waistband is placed on the waistband placing position;

[0017] S3, the entering and exiting material moving mechanism and the pressing driving assembly of the automatic material moving and connecting device are actuated to drive the upper pressing plate to move, so that the waistband pressing plate presses the folded waistband;

[0018] S4, the entering and exiting material moving mechanism is actuated to drive the upper pressing plate to move along the entering and exiting material path, and the waistband pressing plate with the waistband moves on the working platform along the waistband entering and exiting path surface to a specified position in the sewing unit; then the automatic connecting assembly of the pressing mechanism releases the connection between the upper pressing plate and the lower pressing plate, the pressing driving assembly and the entering and exiting material moving mechanism are actuated to drive the upper pressing plate to separate from the lower pressing plate and leave the sewing unit;

[0019] S5, the sewing unit performs waistband sewing work;

[0020] S6, after the waistband is sewn, the entering and exiting material moving mechanism and the pressing driving assembly are actuated to drive the upper pressing plate to enter the sewing unit and be in a connectable position with the lower pressing plate, the automatic connecting assembly is actuated to connect the upper pressing plate and the lower pressing plate, and the waistband pressing plate presses the folded waistband;

[0021] S7, the entering and exiting material moving mechanism is actuated to drive the upper pressing plate to move along the entering and exiting material path, and the waistband pressing plate with the waistband moves on the working platform along the waistband entering and exiting path surface to leave the sewing unit and reach a material collecting position; then the pressing driving assembly drives the upper pressing plate to rise, and the waistband pressing plate separates from the waistband.

[0022] As described above, the automatic material moving and connecting device, the sewing device and the method according to the present application have the following beneficial effects:

[0023] 1. The automatic material moving and connecting device can automatically bring the folded waistband into the sewing unit, can press the waistband to keep stable during the sewing process, does not affect the sewing work, automatically brings out the waistband after the sewing is completed, realizes automatic connection between the material collecting and sewing work, and improves the sewing efficiency.

[0024] 2. During the operation of the pressing mechanism, the upper pressing plate and the lower pressing plate can be automatically and quickly connected or disconnected through the automatic connection component, and the horizontal positioning is achieved through the docking positioning component composed of the first wedge-shaped positioning block and the first wedge-shaped groove, avoiding the problem of misalignment and shaking of the waistband pressing plate during the movement of the feeding and discharging moving mechanism.

[0025] 3. The sewing unit of the sewing equipment presses the lower pressing plate through the pressing frame during sewing to ensure that the waistband position is stable and does not affect the sewing work. The pressing frame and the lower pressing plate are linearly positioned in the horizontal direction through the second wedge-shaped positioning block and the second wedge-shaped groove, and the operation is stable and reliable.

[0026] 4. The sewing machine in the sewing unit can adopt various models and can realize position adjustment, which has good flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the sewing equipment of the present invention.

[0028] Figure 2 This is a structural diagram of Example 1 of the pressing mechanism in the present invention.

[0029] Figure 3 It is a structural schematic diagram of the feeding and discharging moving mechanism in the present invention.

[0030] Figure 4 Schematic diagram of the structure of the sewing unit in the present invention.

[0031] Figure 5 This is a schematic diagram of the working of the automatic material transfer and connection device of the present invention after the waistband is sent to the sewing unit.

[0032] Figure 6 This is a schematic diagram of the operation of the sewing unit of the present invention when sewing the waistband.

[0033] Figure 7 This is a structural diagram of Example 2 of the pressing mechanism in the present invention.

[0034] Figure 8 Schematic diagram of the working process of the automatic connection component in the second embodiment of the pressing mechanism of the present invention when establishing a connection

[0035] Explanation of Figure Numbers

[0036] 1 working platform

[0037] 2 Pressing mechanism

[0038] 21 Waist Pressure Plate

[0039] 211 Sewing work slot

[0040] 22 Lower pressure plate

[0041] 23 automatic connection assembly

[0042] 231 electromagnet

[0043] 232 magnetic suction piece

[0044] 233 lock block

[0045] 234 locking cylinder

[0046] 235 cylinder connecting piece

[0047] 236 insertion rod

[0048] 24 upper pressing plate

[0049] 25 material pressing driving assembly

[0050] 251 adjusting plate

[0051] 252 supporting piece

[0052] 253 sliding table cylinder

[0053] 254 mounting piece

[0054] 255 movable cantilever

[0055] 26 first wedge-shaped positioning block

[0056] 27 second wedge-shaped positioning block

[0057] 3 feeding and discharging moving mechanism

[0058] 31 base

[0059] 32 linear guide rail

[0060] 33 moving frame

[0061] 34 synchronous belt driving assembly

[0062] 35 tensioning adjusting assembly

[0063] 351 adjusting seat

[0064] 352 fixing screw

[0065] 353 adjusting screw

[0066] 36 motor

[0067] 37 first position sensor

[0068] 38 second position sensor

[0069] 4 sewing unit

[0070] 41 sewing machine

[0071] 42 press frame

[0072] 43 table plate

[0073] 44 load bearing plate

[0074] 45 height adjustment bolt

[0075] 46 fixing bolt

[0076] 47 height adjustment plate DETAILED DESCRIPTION

[0077] The present application will be described by way of specific embodiments, and those skilled in the art will readily understand other advantages and purposes of the present application from the contents disclosed in the specification.

[0078] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of the specification are merely used to facilitate understanding and reading by those skilled in the art in conjunction with the contents disclosed in the specification, and are not used to limit the defined conditions under which the present application can be implemented, and therefore do not have technical substantive significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that can be produced by the present application and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and the like used in the specification are only for the convenience of clear description, and are not used to limit the scope in which the present application can be implemented, and the change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the scope in which the present application can be implemented.

[0079] Reference Figures 1 to 8The application provides an automatic material moving and connecting device for waist head sewing, which is used for moving the waist head into a sewing unit 4. The automatic material moving and connecting device comprises a working platform 1, a material pressing mechanism 2, an in-out material moving mechanism 3 and an electric control system. The working platform 1 is provided with a waist head in-out path surface for placing and moving the waist head, and the waist head can enter the sewing unit 4 when moving on the waist head in-out path surface. The material pressing mechanism 2 comprises a waist head pressing plate 21, a lower pressing plate 22, an automatic connecting assembly 23, an upper pressing plate 24 and a material pressing driving assembly 25. The waist head pressing plate 21 is provided with a plurality of sewing working grooves 211 for waist head sewing. The waist head pressing plate 21 is fixedly connected to the lower pressing plate 22. The lower pressing plate 22 is fixedly connected to the upper pressing plate 24 through the automatic connecting assembly 23. The automatic connecting assembly 23 comprises a lower connecting structure arranged on the lower pressing plate 22 and an upper connecting structure arranged on the upper pressing plate 24 and matched with the lower connecting structure. The upper connecting structure and the lower connecting structure can be connected or disconnected. When connected, the lower pressing plate 22 and the upper pressing plate 24 are in a fixed connection state and synchronously move. When disconnected, the upper pressing plate 24 can freely move relative to the lower pressing plate 22. The material pressing driving assembly 25 can drive the upper pressing plate 24 to move up and down, and can make the waist head pressing plate 21 press down on the waist head placed on the waist head in-out path surface. The in-out material moving mechanism 3 is connected to the material pressing mechanism 2, can drive the upper pressing plate 24 to move along the in-out material path, and can make the waist head pressing plate 21 with the waist head move along the waist head in-out path surface when the upper pressing plate 24 moves along the in-out material path. The electric control system is connected to the automatic connecting assembly 23, the material pressing driving assembly 25 and the in-out material moving mechanism 3 respectively. The electric control system can use the electric control system in the sewing unit 4 or be separately arranged.

[0080] The main working principle of the automatic material transfer and connection device of the present invention is as follows: a waistband placement position is provided on the waistband inlet and outlet path surface of the working platform 1, and the folded waistband is placed in the waistband placement position; before the material transfer work, the pressing mechanism 2 is in the initial state, at which time the lower pressing plate 22 is fixedly connected to the upper pressing plate 24 through the automatic connecting component 23, and the two remain in a fixed connection state; the electric control system controls the material inlet and outlet moving mechanism 3 and the pressing drive component 25 to move, and the upper pressing plate 24 is driven to move, and the lower pressing plate 22 and the waistband pressing plate 21 are moved to the waistband placement position as a whole with the upper pressing plate 24, and the pressing drive component 25 applies downward pressure to the lower pressing plate 22, so that the waistband The upper pressing plate 21 presses the folded waistband; then the feeding and discharging moving mechanism 3 is activated, driving the upper pressing plate 24 to move along the feeding and discharging path, and the waistband pressing plate 21 moves the waistband along the waistband feeding and discharging path surface on the working platform 1 to the specified position in the sewing unit 4; then the electronic control system controls the automatic connection component 23 of the pressing mechanism 2 to automatically release the connection between the upper pressing plate 24 and the lower pressing plate 22, and the upper pressing plate 24 can now move freely relative to the lower pressing plate 22. The pressing drive component 25 is activated to drive the upper pressing plate 24 to separate from the lower pressing plate 22, and the feeding and discharging moving mechanism 3 drives the upper pressing plate 24 to leave the sewing unit 4, thereby not affecting the sewing of the waistband by the sewing unit 4. When the sewing unit 4 sews the waistband, it can keep pressing the waistband through the waistband pressing plate 21 and perform sewing work through the sewing working groove 211 on the waistband pressing plate 21. The shape of the sewing working groove 211 can be set according to the requirements of the waistband shape, suture, etc. After the waistband is sewn, the feed-in and feed-out moving mechanism 3 and the pressing drive assembly 25 are controlled by the electronic control system to drive the upper pressing plate 24 to move into the sewing unit 4. Specifically, the upper pressing plate 24 can be returned to the position where it can be connected with the lower pressing plate 22 according to the original path when leaving. Then the automatic connecting assembly 23 is activated to reconnect the upper pressing plate 24 and the lower pressing plate 22. Downward pressure is applied by the pressing drive assembly 25, and the waistband pressing plate 21 presses the waistband. Then the feed-in and feed-out moving mechanism 3 is activated to drive the upper pressing plate 24 to move along the feed-in and feed-out path. The waistband pressing plate 21 moves along the waistband feed-in and feed-out path surface with the waistband on the work platform 1, leaving the sewing unit 4 and arriving at the material receiving position. The material receiving position can be the same as the waistband placement position. The pressing drive assembly 25 then drives the upper pressing plate 24 to rise, and the waistband pressing plate 21 is separated from the waistband. The waistband and trousers receiving material are removed, and the automatic material transfer and connection device can carry out the next mobile work. The automatic material transfer and connection device can automatically move the waistband in and out of the sewing unit 4, realizing the automatic connection between the material collection and release and the sewing work, thereby improving the sewing efficiency.

[0081] See also Figures 1 to 8 The following is a further description of the automatic material transfer and connection device of the present invention using several specific embodiments:

[0082] Example 1:

[0083] See alsoFigures 1 to 6 Structure diagram of automatic material moving connecting device embodiment one. In this embodiment, as a preferred design, the upper connecting structure and the lower connecting structure of the automatic connecting assembly 23, one of which includes electromagnets 231, the other of which includes magnetic pieces 232, are connected. Specifically, see Figure 2 The upper connecting structure includes a plurality of electromagnets 231, and the lower connecting structure includes a plurality of magnetic pieces 232. When the lower pressing plate 22 is connected to the upper pressing plate 24, the upper pressing plate 24 is located directly above the lower pressing plate 22. At this time, the electromagnets 231 and the magnetic pieces 232 correspond to each other one by one. The electric control system is connected to the electromagnets 231 to control the on-off of the electromagnets 231. When the electromagnets 231 are powered on, they attract the magnetic pieces 232 to achieve fixed connection. In addition, the upper pressing plate 24 can exert downward pressure on the lower pressing plate 22. When the electromagnets 231 are powered off, they no longer attract the magnetic pieces 232. The upper pressing plate 24 can be separated from the lower pressing plate 22 by moving upward. In other embodiments, the electromagnets 231 and the magnetic pieces 232 can also be interchanged. In addition, the upper pressing plate 24 can also be connected to the lower pressing plate 22 from the side, that is, the upper pressing plate 24 and the lower pressing plate 22 can also be connected from the side.

[0084] In this embodiment, see Figure 2 As a preferred design, the pressing mechanism 2 further includes a butt joint positioning assembly. The butt joint positioning assembly includes an upper positioning structure arranged on the upper pressing plate 24 and a lower positioning structure arranged on the lower pressing plate 22. When the upper connecting structure on the upper pressing plate 24 is connected to the lower connecting structure on the lower pressing plate 22, the upper positioning structure cooperates with the lower positioning structure to limit the relative position of the upper pressing plate 24 and the lower pressing plate 22 in the horizontal direction. Specifically, in this embodiment, the lower positioning structure includes a plurality of first wedge-shaped positioning blocks 26 fixed on the upper surface of the lower pressing plate 22, and the upper positioning structure includes a plurality of first wedge-shaped grooves corresponding to the first wedge-shaped positioning blocks 26 arranged on the bottom surface of the upper pressing plate 24. The corresponding first wedge-shaped positioning blocks 26 and the first wedge-shaped grooves are matched in shape, and the shape of the first wedge-shaped positioning blocks 26 gradually increases from top to bottom. When the upper pressing plate 24 is moved to be located above the lower pressing plate 22, and the electromagnets 231 of the upper connecting structure and the magnetic pieces 232 of the lower connecting structure are aligned, the corresponding first wedge-shaped positioning blocks 26 and the first wedge-shaped grooves are aligned. When the upper pressing plate 24 is lowered to be close to the lower pressing plate 22, the electromagnets 231 and the magnetic pieces 232 are in contact and connected, the first wedge-shaped positioning blocks 26 are inserted into the corresponding first wedge-shaped grooves, and the side surfaces of the two are in close contact to achieve cooperation, thereby limiting the relative position of the upper pressing plate 24 and the lower pressing plate 22 in the horizontal direction. In other embodiments, the upper positioning structure can include the first wedge-shaped positioning blocks 26 fixed on the upper pressing plate 24, and the lower positioning structure can include the first wedge-shaped grooves arranged on the upper surface of the lower pressing plate 22. At this time, the shape of the first wedge-shaped positioning blocks 26 gradually decreases from top to bottom.

[0085] In the embodiment, referring to Figure 2 , further, the first wedge-shaped positioning block 26 is at least two, and the two first wedge-shaped positioning blocks 26 extend along a straight line and are perpendicular to each other, one of the first wedge-shaped positioning blocks 26 extends along the X direction (left-right direction), and the other extends along the Y direction (front-rear direction), and the cross section of the first wedge-shaped positioning block 26 perpendicular to the straight line extending direction is a trapezoidal shape, and correspondingly, the first wedge-shaped groove is also at least two, which respectively extend along the X direction and the Y direction, and correspond to the two first wedge-shaped positioning blocks 26 one by one, and the cross section of the first wedge-shaped groove is also a trapezoidal shape, so as to facilitate the insertion of the first wedge-shaped positioning block 26 into the first wedge-shaped groove, and to ensure that the side surfaces of the two are kept in close contact. When the first wedge-shaped positioning block 26 extending along the X direction is inserted into the first wedge-shaped groove, it can limit the relative position of the upper pressing plate 24 and the lower pressing plate 22 in the Y direction, and when the first wedge-shaped positioning block 26 extending along the Y direction is inserted into the first wedge-shaped groove, it can limit the relative position of the upper pressing plate 24 and the lower pressing plate 22 in the X direction. In other embodiments, the first wedge-shaped positioning block 26 and the first wedge-shaped groove can also adopt other shapes and quantities, and the shapes of the two are kept in cooperation, which can be smoothly inserted, and the relative position of the upper pressing plate 24 and the lower pressing plate 22 in the horizontal direction can be limited by the side surface close-fitting cooperation.

[0086] In the embodiment, referring to Figure 1 and Figure 3 , the waist head pressing plate 21 is fixedly connected with the lower pressing plate 22 in a detachable manner, for example, by bolt connection, so that different waist head pressing plates 21 can be replaced according to the needs of the waist head. In other embodiments, the waist head pressing plate 21 can also be an integral plate structure with the lower pressing plate 22.

[0087] In the embodiment, referring to Figure 2As a preferred design, the pressing material driving assembly 25 drives the upper pressing plate 24 to move vertically, and when the lower pressing plate 22 is fixedly connected to the upper pressing plate 24, the waist head pressing plate 21 is located above the waist head access path surface, so that during work, the pressing material driving assembly 25 only needs to drive the upper pressing plate 24 to move vertically, so as to make the waist head pressing plate 21 press the waist head located on the waist head access path surface, or separate from the waist head upward. The pressing material driving assembly 25 includes an adjusting plate 251, a support plate 252, a sliding table air cylinder 253, a mounting plate 254, and a moving cantilever 255, etc. The moving cantilever 255 is connected to the material access moving mechanism 3. The two sliding table air cylinders 253 are fixedly installed on the moving cantilever 255 through the mounting plate 254. The adjusting plate 251 is connected to the two sliding table air cylinders 253 through the two support plates 252, respectively. The adjusting plate 251 is fixedly connected to the upper pressing plate 24. The sliding table air cylinder 253 drives the support plate 252 and the adjusting plate 251 to move vertically, thereby driving the upper pressing plate 24 to move vertically. The material access moving mechanism 3 drives the moving cantilever 255 to move, thereby driving the upper pressing plate 24 to move along the material access path. In other embodiments, the pressing material driving assembly 25 can also use other suitable mechanisms, and the pressing material driving assembly 25 can drive the upper pressing plate 24 to move in the horizontal direction, so that the upper pressing plate 24 is away from above the waist head access path surface, facilitating the placement and collection of the waist head on the work platform 1.

[0088] In this embodiment, referring to Figure 2 As a preferred design, the adjusting plate 251 of the pressing material driving assembly 25 is provided with a plurality of adjusting strip-shaped holes extending in the Y direction (front-rear direction). A connecting bolt passes through the adjusting strip-shaped hole and is connected to the upper pressing plate 24. The width of the connecting bolt in the X direction (left-right direction) is also greater than the diameter of the connecting bolt. When the connecting bolt is loosened, it can move in the front-rear direction in the adjusting strip-shaped hole, realizing the front-rear movement adjustment of the upper pressing plate 24 in the horizontal direction. The connecting bolt moves in the left-right direction in the adjusting strip-shaped hole, thereby realizing the left-right movement adjustment of the upper pressing plate 24 in the horizontal direction, and also realizing the small-size rotation of the upper pressing plate 24 around the Z axis, so that the relative position adjustment between the waist head pressing plate 21 and the waist head during work can be realized, and the use is more flexible.

[0089] In this embodiment, referring to Figure 1 and Figure 2As a preferred design, the sewing work grooves 211 on the waist head pressing plate 21 are provided with two or more, and multiple waist heads can be pressed by the waist head pressing plate 21 at a time during sewing, and multiple waist heads are driven into the sewing unit 4, and multiple work stations can be provided in the sewing unit 4 to sew multiple waist heads respectively. Or a movement mechanism capable of moving the pressing plate 22 and the waist head pressing plate 21 in a small range is provided in the sewing unit 4 to move different waist heads to the work stations. The sewing work grooves 211 on the waist head pressing plate 21 can also be movable, and the positions of the two sewing work grooves 211 are switched by switching components, and only one work station in the sewing unit 4 is needed to sew multiple waist heads.

[0090] In this embodiment, referring to Figure 1 and Figure 3 , as a preferred design, the feeding and discharging movement mechanism 3 includes a base 31, a linear guide rail 32, a moving frame 33, a synchronous belt transmission assembly 34 and a servo motor 36, etc. The base 31 is made of aluminum profile, the linear guide rail 32 is installed on the base 31, the moving frame 33 is installed in the linear guide rail 32 and can move along the linear guide rail 32, the synchronous belt transmission assembly 34 and the servo motor 36 are installed on the base 31, the servo motor 36 is connected with the moving frame 33 through the synchronous belt transmission assembly 34, the synchronous belt transmission assembly 34 includes a synchronous belt and a pulley, which are of a conventional structure, the synchronous belt is connected with the moving frame 33, and the moving cantilever 255 of the pressing mechanism 2 is fixed on the moving frame 33. When the servo motor 36 rotates, the synchronous belt moves through the pulley, driving the moving frame 33 to move along the linear guide rail 32, so that the pressing mechanism 2 moves linearly, and the feeding and discharging path of the upper pressing plate 24 is a linear path. In other embodiments, the feeding and discharging movement mechanism 3 can also adopt other existing suitable structures. Further, a tension adjusting assembly 35 for adjusting the tension of the synchronous belt is also provided on the base 31, which includes an adjusting seat 351, a fixing screw 352 and an adjusting screw 353. The adjusting seat 351 is provided with a strip-shaped hole, the fixing screw 352 passes through the strip-shaped hole and is screwed with the base 31, so as to fix the adjusting seat 351 on the base 31, one of the pulleys of the synchronous belt transmission assembly 34 is installed on the adjusting seat 351, the adjusting screw 353 is screwed with the base 31 and connected with the adjusting seat 351, and the axis of the adjusting screw 353 is parallel to the length direction of the strip-shaped hole of the adjusting seat 351. After loosening the fixing screw 352, the adjusting seat 351 is moved along the strip-shaped hole by rotating the adjusting screw 353, that is, one of the pulleys of the synchronous belt transmission assembly 34 is moved, so as to adjust the tension of the synchronous belt.

[0091] In this embodiment, referring to Figure 1 and Figure 3, further, the in-out material moving mechanism 3 further comprises a first position sensor 37 and a second position sensor 38, both of which are installed on the base 31 and can be proximity switches, photoelectric sensors, etc., connected to the electric control system. When the waist head is placed on the waist head placing position on the working platform 1, the moving frame 33 moves to the first position to trigger the first position sensor 37, sends a signal to the electric control system, and the electric control system controls the servo motor 36 to stop according to the signal, so that the moving frame 33 stops moving at the first position, and the waist head pressing plate 21 is located directly above the waist head at this time, waiting to press down the waist head. When the in-out material moving mechanism 3 drives the pressing mechanism 2 to move the waist head into the sewing unit 4, the moving frame 33 moves to the second position to trigger the second position sensor 38, sends a signal to the electric control system, and the electric control system controls the servo motor 36 to stop according to the signal, so that the moving frame 33 stops moving at the second position, and the waist head pressing plate 21 is located in the sewing unit 4 at this time, and just drives the designated sewing working position of the waist head.

[0092] Embodiment two:

[0093] Referring to Figure 7 and Figure 8 , the structure of embodiment one of the automatic material moving connection device, compared with embodiment two, the pressing mechanism 2 adopts a different automatic connection assembly 23, and the rest is basically the same. In this embodiment, one of the upper connection structure and the lower connection structure of the automatic connection assembly 23 comprises a locking block 233, and the other comprises a plug rod 236 and a locking drive part driving the plug rod 236 to move. Specifically, the lower connection structure comprises a plurality of locking blocks 233 and is fixedly arranged on the upper surface of the lower pressing plate 22, and the upper connection structure comprises a plurality of locking drive parts, which are locking cylinders 234 fixedly installed on the upper pressing plate 24 through cylinder connecting pieces 235. The locking drive part can also adopt other structures with driving function, and the locking cylinder 234 is connected with a plug rod 236, which drives the plug rod 236 to move linearly and corresponds to a locking block 233 respectively. The electric control system is connected with the locking cylinder 234. The pressing drive assembly 25 drives the upper pressing plate 24 to move linearly, and the lower pressing plate 22 approaches or separates. When the upper pressing plate 24 approaches the lower pressing plate 22 to abut against each other, the first wedge-shaped positioning block 26 is inserted into the corresponding first wedge-shaped groove, and the relative position of the upper pressing plate 24 and the lower pressing plate 22 is in a connectable state. At this time, the plug rod 236 on the locking cylinder 234 is aligned with the insertion hole of the corresponding locking block 233, then the locking cylinder 234 drives the plug rod 236 to extend and insert into the insertion hole of the locking block 233, so that the upper pressing plate 24 and the lower pressing plate 22 are automatically connected. When it is necessary to disconnect, control the locking cylinder 234 to drive the plug rod 236 to retract and pull out the insertion hole of the locking block 233.

[0094] In other embodiments, the automatic connection component 23 in the pressing mechanism 2 may also adopt other existing suitable structures, as long as it can realize the function of automatically connecting or disconnecting the upper pressing plate 24 and the lower pressing plate 22.

[0095] The present invention also provides a sewing device for waistband sewing, see Figure 1 , including a sewing unit 4, and also including the above-mentioned automatic material moving and connecting device, which automatically drives the waistband into the sewing unit 4 for sewing work, and automatically moves the sewn waistband to leave the sewing unit 4.

[0096] See also Figure 1 and Figure 6 In this embodiment, as a preferred design, the sewing unit 4 includes a sewing machine 41 and a press frame 42. The sewing machine 41 can be a pattern sewing machine, a lockstitch sewing machine, or other types. The press frame 42 is installed on the sewing machine 41. The sewing machine 41 is provided with a corresponding driving mechanism that can drive the press frame 42 to move up and down. When the automatic material transfer and connection device drives the waistband into the sewing unit 4 and is in the working position, the lower pressing plate 22 is located below the press frame 42. After the upper pressing plate 24 separates from the lower pressing plate 22 and leaves the sewing unit 4, the press frame 42 moves downward and presses on the lower pressing plate 22, so that the waistband pressing plate 21 stably presses the waistband in the sewing machine for sewing. The shape of the press frame 42 can be set according to actual sewing needs, and it can press the waistband pressing plate 21 without affecting the sewing line. Preferably, the sewing machine 41 can also drive the pressing plate to rotate around the vertical Z axis and has an appropriate displacement range in the horizontal direction to adjust the angle and horizontal position of the pressing frame 42 as needed to facilitate sewing work.

[0097] See also Figure 1 、 Figure 2 and Figure 6 In this embodiment, as a preferred design, at least two second wedge-shaped positioning blocks 27 are provided on the upper surface of the lower pressing plate 22, extending linearly and perpendicularly to each other. One of the first wedge-shaped positioning blocks 26 extends linearly in the X direction, and the other extends linearly in the Y direction. Correspondingly, at least two second wedge-shaped grooves are provided on the bottom surface of the lower pressing frame 42, extending linearly and perpendicularly to each other, one in the X direction and the other in the Y direction, corresponding to the two second wedge-shaped positioning blocks 27. The cross-section of the second wedge-shaped grooves is also trapezoidal. When the lower pressing plate 22 and the waistband pressing plate 21 move below the pressing frame 42, the corresponding second wedge-shaped positioning blocks 27 and the second wedge-shaped grooves are aligned relative to each other. The pressing frame 42 then moves downward and presses against the lower pressing plate 22, and the second wedge-shaped positioning blocks 27 are inserted into the second wedge-shaped grooves. The structure and operating principle of the second wedge-shaped positioning blocks 27 and the second wedge-shaped grooves are substantially the same as those of the first wedge-shaped positioning blocks 26 and the first wedge-shaped grooves in the pressing mechanism 2. Therefore, other suitable configurations can also be employed, referring to the upper and lower positioning structures.

[0098] Referring to Figure 1 、 Figure 2 and Figure 6 In the embodiment, as a preferred design, the sewing unit 4 further comprises a table plate 43, a bearing plate 44, height adjustment bolts 45, fixing bolts 46 and height adjustment plates 47. The sewing machine 41 is arranged on the table plate 43, the table plate 43 is placed on the bearing plate 44, and the bearing plate 44 is provided with the height adjustment plates 47 at the bottom of the front and rear sides. The table plate 43 is provided with a plurality of connecting through holes, the fixing bolts 46 are screwed into the bearing plate 44 through the connecting through holes, and the table plate 43 is fixed. The hole diameter of the connecting through hole is larger than the outer diameter of the fixing bolt 46, and when the fixing bolt 46 is loosened, the table plate 43 can be adjusted in position in the horizontal X and Y directions relative to the bearing plate 44 through the connecting through hole. A plurality of height adjustment bolts 45 are arranged at the front and rear of the table plate 43, the height adjustment bolts 45 are screwed into the bearing plate 44, and the lower end abuts against the height adjustment plate 47. By rotating the height adjustment bolts 45, the height and the inclination angle of the bearing plate 44 can be adjusted. By adjusting the position and the angle of the table plate 43, the position and the angle of the sewing machine 41 can be adjusted, and the use is more flexible and convenient.

[0099] The application further provides a sewing method for waistband sewing, which is performed by using the sewing device.

[0100] S1, in the initial state, the lower pressing plate 22 of the pressing mechanism 2 of the automatic material moving and connecting device is fixedly connected with the upper pressing plate 24 through the automatic connecting assembly 23; at this time, the pressing mechanism 2 is generally located at the middle position of the linear guide rail 32 of the material moving in and out mechanism 3, and maintains appropriate distances from the sewing unit 4 and the waistband placing position.

[0101] S2, the waistband in and out path surface of the working platform 1 is provided with a waistband placing position, and the folded waistband is placed on the waistband placing position.

[0102] S3, the material moving in and out mechanism 3 and the pressing driving assembly 25 of the automatic material moving and connecting device are actuated to drive the upper pressing plate 24 to move, so that the waistband pressing plate 21 presses the folded waistband. Specifically, the material moving in and out mechanism 3 first drives the upper pressing plate 24 to move towards the direction of moving the waistband placing position until the waistband pressing plate 21 is located above the waistband, and then the pressing driving assembly 25 drives the upper pressing plate 24 to linearly descend, so that the waistband pressing plate 21 presses the folded waistband.

[0103] S4, the in-out material moving mechanism 3 is actuated to drive the upper pressing plate 24 to move along the in-out material path, the waist head pressing plate 21 with the waist head is moved on the working platform 1 along the waist head in-out path surface to a specified position in the sewing unit 4, and the lower pressing plate 22 is pressed down through the pressing frame 42 of the sewing unit 4; then the automatic connecting assembly 23 of the pressing material mechanism 2 is actuated to disconnect the upper pressing plate 24 and the lower pressing plate 22, the pressing material driving assembly 25 is actuated and the in-out material moving mechanism 3 is actuated to drive the upper pressing plate 24 to separate from the lower pressing plate 22 and leave the sewing unit 4; specifically, after the upper pressing plate 24 and the lower pressing plate 22 are disconnected, the pressing material driving assembly 25 is actuated to drive the upper pressing plate 24 to rise first, and then the in-out material moving mechanism 3 is actuated to drive the upper pressing plate 24 to move along the in-out material path and return to leave the sewing unit 4.

[0104] S5, the sewing unit 4 performs waist head sewing work;

[0105] S6, after the waist head is sewn, the in-out material moving mechanism 3 and the pressing material driving assembly 25 are actuated to drive the upper pressing plate 24 to enter the sewing unit 4 and be in a connectable position with the lower pressing plate 22, the automatic connecting assembly 23 is actuated to connect the upper pressing plate 24 and the lower pressing plate 22, and the waist head pressing plate 21 presses the folded waist head; specifically, the in-out material moving mechanism 3 is actuated to drive the upper pressing plate 24 to move along the in-out material path and return to the upper pressing plate 24, the electromagnet 231 and the magnetic suction piece 232 are aligned vertically, the pressing material driving assembly 25 drives the upper pressing plate 24 to linearly descend to contact the lower pressing plate 22, and the two are in a connectable position, at this time, the electromagnet 231 is close to and contacts the magnetic suction piece 232, then the electromagnet 231 is electrified to suck the magnetic suction piece 232, and the waist head pressing plate 21 presses the folded waist head.

[0106] S7, the in-out material moving mechanism 3 is actuated to drive the upper pressing plate 24 to move along the in-out material path, the waist head pressing plate 21 with the waist head is moved on the working platform 1 along the waist head in-out path surface, leaves the sewing unit 4 and reaches a material collecting position; then the pressing material driving assembly 25 drives the upper pressing plate 24 to rise, the waist head pressing plate 21 is separated from the waist head, and the waist head and the trousers material can be taken off from the working platform 1.

[0107] The automatic material moving connection device, the sewing equipment and the method have the following beneficial effects:

[0108] 1. The automatic material moving connection device can automatically bring the folded waist head into the sewing unit 4, can press the waist head to keep stable during the sewing process, does not affect the sewing work, automatically brings out the waist head after the sewing is completed, realizes automatic connection between the material collecting and releasing and the sewing work, and improves the sewing efficiency.

[0109] 2. During the operation of the pressing mechanism 2, the upper pressing plate 24 and the lower pressing plate 22 can be automatically and quickly connected or disconnected through the automatic connection component 23, and the horizontal positioning is achieved through the docking positioning component composed of the first wedge-shaped positioning block 26 and the first wedge-shaped groove, avoiding the problem of misalignment and shaking of the waistband pressing plate 21 during the movement of the feeding and discharging moving mechanism 3.

[0110] 3. When sewing, the sewing unit 4 of the sewing equipment presses the lower pressing plate 22 through the pressing frame 42 to ensure that the waistband position is stable and does not affect the sewing work. In addition, the pressing frame 42 and the lower pressing plate 22 are positioned in the horizontal direction in a straight line through the second wedge-shaped positioning block 27 and the second wedge-shaped groove, and the operation is stable and reliable.

[0111] 4. The sewing machine 41 in the sewing unit 4 can be of various models and can be adjusted in position, thus having good flexibility.

[0112] In summary, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0113] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. An automatic material transfer and connection device for waistband sewing, used for moving the waistband into the sewing unit (4), characterized in that: The automatic material transfer and connection device comprises a working platform (1), a material pressing mechanism (2), a material inlet and outlet moving mechanism (3) and an electric control system. The working platform (1) is provided with a waistband inlet and outlet path surface for placing and moving the waistband, and the waistband can enter the sewing unit (4) when moving on the waistband inlet and outlet path surface. The material pressing mechanism (2) comprises a waistband pressing plate (21), a lower pressing plate (22), an automatic connection component (23), an upper pressing plate (24) and a material pressing drive component (25). The waistband pressing plate (21) is provided with a plurality of sewing working grooves (211) for sewing the waistband. The waistband pressing plate (21) is fixedly connected to the waistband pressing plate (21). The lower pressing plate (22) is fixedly connected to the upper pressing plate (24) through an automatic connection component (23). The automatic connection component (23) includes a lower connection structure provided on the lower pressing plate (22), an upper connection structure provided on the upper pressing plate (24) and cooperating with the lower connection structure. The upper connection structure and the lower connection structure can be connected or disconnected. The pressing drive component (25) is connected to the upper pressing plate (24) and can drive the upper pressing plate (24) to move up and down, and can press the waistband pressing plate (21) down onto the waistband placed on the waistband inlet and outlet path surface; the feeding and discharging moving mechanism (3) can The upper pressing plate (24) can be driven to move along the feeding and discharging path, and when the upper pressing plate (24) moves along the feeding and discharging path, the waist pressing plate (21) pressing the waistband can move along the waistband feeding and discharging path surface; the electric control system is respectively connected to the automatic connection component (23), the pressing drive component (25) and the feeding and discharging moving mechanism (3); one of the upper connecting structure and the lower connecting structure of the automatic connection component (23) includes a locking block (233), and the other includes an insert rod (236) and a locking drive part for driving the insert rod (236) to move, the locking block (233) is provided with a socket, and the insert rod (236) is inserted into the locking block (233). When the upper connecting structure is inserted into the socket of the locking block (233), the upper connecting structure and the lower connecting structure are connected, and when the upper connecting structure is pulled out of the socket, the upper connecting structure and the lower connecting structure are disconnected. The electric control system is connected to the locking drive unit; the pressing mechanism (2) also includes a docking positioning component, and the docking positioning component includes an upper positioning structure provided on the upper pressing plate (24) and a lower positioning structure provided on the lower pressing plate (22). When the upper connecting structure on the upper pressing plate (24) is connected to the lower connecting structure on the lower pressing plate (22), the upper positioning structure cooperates with the lower positioning structure and limits the relative position of the upper pressing plate (24) and the lower pressing plate (22) in the horizontal direction.

2. The automatic material transfer and connection device according to claim 1, characterized in that: One of the upper positioning structure and the lower positioning structure includes a plurality of first wedge-shaped positioning blocks (256), and the other includes a plurality of first wedge-shaped grooves corresponding to the first wedge-shaped positioning blocks (256). The corresponding first wedge-shaped positioning blocks (256) and the first wedge-shaped positioning grooves are adapted to each other in shape. When the first wedge-shaped positioning block (256) is set on the lower pressure plate (22), its shape gradually becomes larger from top to bottom. When it is set on the upper pressure plate (24), its shape gradually becomes smaller from top to bottom. When the upper connecting structure on the upper pressure plate (24) and the lower connecting structure on the lower pressure plate (22) are kept relative to each other, the corresponding first wedge-shaped positioning block (256) and the first wedge groove are kept aligned. When the upper connecting structure and the lower connecting structure are connected, the first wedge-shaped positioning block (256) is inserted into the first wedge groove, and the sides of the two are abutted against each other.

3. The automatic material transfer and connection device according to claim 2, characterized in that: There are at least two first wedge-shaped positioning blocks (256), and the two first wedge-shaped positioning blocks (256) extend along a straight line and are perpendicular to each other. The cross section of the first wedge-shaped positioning block (256) perpendicular to its straight line extension direction is trapezoidal.

4. The automatic material transfer and connection device according to claim 1, characterized in that: The material pressing drive assembly (25) drives the upper pressing plate (24) to move up and down linearly, and when the lower pressing plate (22) and the upper pressing plate (24) are fixedly connected, the waistband pressing plate (21) is located above the waistband entry and exit path surface.

5. A sewing device for waistband sewing, comprising a sewing unit (4), characterized in that: It also includes the automatic material transfer and connection device as described in any one of claims 1 to 4.

6. The sewing equipment according to claim 5, characterized in that: The sewing unit (4) is provided with a lifting and lowering pressing frame (42), and when the automatic material transfer and connection device drives the waistband into the sewing unit (4), the lower pressing plate (22) is located below the pressing frame (42).

7. A method for sewing a waistband, characterized in that: The method is carried out using the sewing device according to claim 5, comprising the following steps: S1, in the initial state, the lower pressing plate (22) of the pressing mechanism (2) in the automatic material transfer and connection device is fixedly connected to the upper pressing plate (24) through the automatic connection component (23); S2. The waistband entry and exit path surface of the working platform (1) is provided with a waistband placement position, and the folded waistband is placed in the waistband placement position; S3, the material feeding and discharging moving mechanism (3) and the material pressing driving assembly (25) of the automatic material transfer and connection device are activated, driving the upper pressing plate (24) to move, so that the waistband pressing plate (21) presses the folded waistband; S4, the feeding and discharging moving mechanism (3) is activated, driving the upper pressing plate (24) to move along the feeding and discharging path, and the waistband pressing plate (21) moves the waistband on the working platform (1) along the waistband feeding and discharging path surface to the designated position in the sewing unit (4); then the automatic connecting component (23) of the pressing mechanism (2) releases the connection between the upper pressing plate (24) and the lower pressing plate (22), the pressing driving component (25) is activated and the feeding and discharging moving mechanism (3) is activated, driving the upper pressing plate (24) to separate from the lower pressing plate (22) and leave the sewing unit (4); S5, sewing unit (4) performs waistband sewing work; S6, after the waistband is sewn, the feeding and discharging moving mechanism (3) and the pressing driving assembly (25) are activated, driving the upper pressing plate (24) to enter the sewing unit (4) and to be in a connectable position with the lower pressing plate (22), the automatic connecting assembly (23) is activated, connecting the upper pressing plate (24) and the lower pressing plate (22), and the waistband pressing plate (21) presses the folded waistband; S7, the material feeding and discharging moving mechanism (3) is activated, driving the upper pressing plate (24) to move along the material feeding and discharging path, and the waistband pressing plate (21) moves along the waistband feeding and discharging path surface with the waistband on the working platform (1), leaves the sewing unit (4) and reaches the material receiving position; then the material pressing drive assembly (25) drives the upper pressing plate (24) to rise, and the waistband pressing plate (21) is separated from the waistband.

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