Deviation correcting assembly and sewing machine and embroidering machine considering deviation correcting range of material positioning and deviation correction

CN224716794UActive Publication Date: 2026-09-04韦黎刁
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Patent Information

Application Number
CN202521821932.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-26
Publication Date
2026-09-04
Estimated Expiration
2035-08-26

AI Technical Summary

Technical Problem

[0004]以上校正定位技术方案,只适用于材质较硬的缝纫片材,若是较薄尤其是较软的材质,采用传统的推移校正的方式,难以实现校正效果

Benefits of technology

[0031]Compared with the prior art, this utility model has significant advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly achieves this through the arrangement of a sensing unit, a vacuum adsorption seat, a rotary drive unit, a translation seat, a translation drive unit, an annular baffle, and a baffle drive unit. This ensures that: in the waiting state, the annular baffle is in an upward state, filling the annular gap between the vacuum adsorption surface and the clearance groove, guaranteeing reliable positioning of the sheet when it reaches the sheet placement area, and preventing softer sheets from collapsing due to the annular gap; when the vacuum adsorption surface adheres to the bottom of the sheet, the annular baffle descends away from the annular gap and avoids the sheet placement panel, freeing up the annular gap so that the vacuum adsorption surface has a sufficiently large translational correction space within the clearance groove. The translational stroke is large enough that even sheets with large deviations can achieve automatic correction, further reducing the requirements for pre-feeding and other processes, and effectively improving the tolerance for deviation correction.

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Abstract

The utility model discloses a kind of deviation correction assembly and sewing machine, embroider eye machine, which give consideration to material discharging positioning and deviation correction range, comprising: sheet material placement panel, its top surface has sheet material placement area;Sheet material placement panel is provided with the avoidance groove that is through sheet material placement area up and down;Induction unit, it includes several interval arrangement position inductors;Vacuum suction seat, its top has vacuum suction surface;The top of vacuum suction seat is in the avoidance groove, the periphery of vacuum suction surface and the inside of avoidance groove keep annular movable gap, vacuum suction seat is connected with rotary drive unit;Translation seat, it is used to set rotary drive unit;Annular baffle and baffle drive unit are also provided on translation seat, baffle drive unit drives annular baffle to stretch into annular movable gap upwards, away from annular movable gap downwards and avoid sheet material placement panel;Translation drive unit, it is used to drive translation seat translation;It realizes the automatic deviation correction positioning of relatively soft quality sewing sheet material.
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Description

Technical Field

[0001] This utility model relates to the technology in the field of sewing processing, and in particular to a correction component that takes into account both material feeding positioning and correction range, as well as a sewing machine and an eyelet machine. Background Technology

[0002] During automated sewing, it is difficult to achieve precise positioning of the sewing sheets, whether placed manually or automatically at the corresponding workstation. Therefore, it is necessary to correct and position the sewing sheets.

[0003] Taking a baseball cap as an example, it is made up of multiple cap pieces sewn together. These cap pieces are generally cut automatically, and then the cap pieces are sent to the corresponding workstations on the machine by manual or automatic means. When sewing the cap pieces, it is necessary to ensure that one side of the cap piece is aligned and flush. For example, if the cap piece is sewn together on the right side, the right side needs to be positioned, and the left side is pushed to the right by positioning rods or other objects so that the right side of the cap piece is corrected to the required position.

[0004] The above-mentioned correction and positioning techniques are only applicable to relatively hard sewing sheets. For thinner, especially softer, materials, the traditional pushing correction method is difficult to achieve the desired correction effect. Therefore, automatic correction of softer sewing sheets is difficult, limiting the research and development of technologies for automatically correcting softer sewing sheets on sewing machines.

[0005] Therefore, a new technical solution needs to be researched to address the above problems. Utility Model Content

[0006] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide a correction component and sewing machine / embroidery machine that takes into account both material feeding positioning and correction range, which realizes automatic correction and positioning of sewing sheets made of relatively soft materials.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A correction component that combines material feeding positioning and correction range includes:

[0009] A sheet placement panel has a sheet placement area on its top surface; the sheet placement panel is provided with a clearance groove that runs vertically through the sheet placement area;

[0010] The sensing unit includes a plurality of position sensors arranged at intervals for sensing the edge position of the sewn sheet;

[0011] A vacuum adsorption seat has a vacuum adsorption surface at its top; the top of the vacuum adsorption seat extends into the clearance groove so that the vacuum adsorption surface is exposed in the clearance groove, and the periphery of the vacuum adsorption surface and the inner side of the clearance groove maintain an annular movable gap; the vacuum adsorption seat is connected to a rotary drive unit, which drives the vacuum adsorption seat to rotate around the Z-axis.

[0012] A translational seat is used to mount the rotation drive unit; the translational seat is also provided with an annular baffle and a baffle drive unit, the baffle drive unit drives the annular baffle to extend upward into the annular movable gap, downward away from the annular movable gap and avoid the sheet placement panel;

[0013] A translation drive unit is used to drive the translation seat to translate; a controller is connected to the position sensor, the vacuum suction seat, the rotation drive unit, the baffle drive unit, and the translation drive unit.

[0014] As a preferred embodiment, the translation drive unit includes a Y-axis drive unit and an X-axis drive unit; the Y-axis drive unit is mounted on a base, and a Y-axis movable seat is disposed on the base, the Y-axis drive unit drives the Y-axis movable seat to move relative to the base along the Y-axis; the X-axis drive unit is mounted on the Y-axis movable seat, the translation seat is disposed on the Y-axis movable seat, the X-axis drive unit drives the translation seat to move relative to the Y-axis movable seat along the X-axis.

[0015] As a preferred embodiment, the translation seat has a relatively fixed base plate and a top plate, the rotation drive unit is disposed on the base plate, the vacuum adsorption seat is located above the top plate, the top plate is provided with a rotation hole, and the rotation axis of the rotation drive unit passes upward through the rotation hole and is connected to the bottom of the vacuum adsorption seat.

[0016] As a preferred embodiment, the baffle drive unit is mounted on the top plate and located beside the vacuum adsorption seat.

[0017] As a preferred embodiment, the baffle drive unit is a lifting cylinder.

[0018] As a preferred embodiment, the upper end of the lifting cylinder extends a telescopic rod, the upper end of the telescopic rod is connected to a connector, and the upper end of the connector is connected to the annular baffle.

[0019] As a preferred embodiment, the rotary drive unit includes a horizontal motor and a reversing transmission mechanism. The horizontal motor extends outside the base plate, the reversing transmission mechanism is located between the base plate and the top plate, and the rotary shaft is connected to the output end of the reversing transmission mechanism.

[0020] As a preferred embodiment, the position sensor is mounted on a top plate, the position sensor on the top plate is adjustable, and the position sensor is located above the sheet placement panel to sense the edge position of the sewing sheet downwards.

[0021] A sewing machine that uses a correction component as described in any of the preceding claims, which combines feeding positioning and correction range.

[0022] An automatic eyelet sewing machine for caps includes:

[0023] The machine frame is equipped with a first loading station, a second loading station, a first embroidery eye station, a second embroidery eye station, a transfer station, a stacking station, and a sewing station arranged side by side from left to right.

[0024] The first automatic feeding mechanism is used to automatically feed the cap piece to the first feeding station;

[0025] A first automatic flipping mechanism is provided corresponding to the first feeding station. The first automatic flipping mechanism is used to flip the cap piece from the first feeding station to the second feeding station.

[0026] The first embroidery eye device is set up corresponding to the first embroidery eye station;

[0027] The second embroidery eye device is set up corresponding to the second embroidery eye station;

[0028] A second automatic flipping mechanism is provided corresponding to the transfer station. The second automatic flipping mechanism is used to flip the cap piece after the eyelet from the transfer station to the stacking station. The stacking station includes a first correction station and a second correction station arranged side by side. The second automatic flipping mechanism flips the cap piece after the eyelet from the transfer station to the first correction station. Both the first correction station and the second correction station are provided with a correction component as described in any of the preceding items, which takes into account both material feeding positioning and correction range, so that the two cap pieces can be corrected at the first correction station and the second correction station respectively.

[0029] Several material transfer robots are connected between the first loading station, the second loading station, the first embroidery eye station, the second embroidery eye station, the transfer station, and the stacking station to transfer cap pieces;

[0030] A sewing device; it is equipped with a transfer pressure frame assembly for transferring and positioning cap pieces; the transfer pressure frame assembly is used to transfer the stacked cap pieces on the stacking station to the sewing station, and the sewing device is set up corresponding to the sewing station.

[0031] Compared with the prior art, this utility model has significant advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly achieves this through the arrangement of a sensing unit, a vacuum adsorption seat, a rotary drive unit, a translation seat, a translation drive unit, an annular baffle, and a baffle drive unit. This ensures that: in the waiting state, the annular baffle is in an upward state, filling the annular gap between the vacuum adsorption surface and the clearance groove, guaranteeing reliable positioning of the sheet when it reaches the sheet placement area, and preventing softer sheets from collapsing due to the annular gap; when the vacuum adsorption surface adheres to the bottom of the sheet, the annular baffle descends away from the annular gap and avoids the sheet placement panel, freeing up the annular gap so that the vacuum adsorption surface has a sufficiently large translational correction space within the clearance groove. The translational stroke is large enough that even sheets with large deviations can achieve automatic correction, further reducing the requirements for pre-feeding and other processes, and effectively improving the tolerance for deviation correction.

[0032] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0033] Figure 1 This is a perspective view of a correction component that combines material feeding positioning and correction range according to an embodiment of the present utility model.

[0034] Figure 2 yes Figure 1 A-direction view;

[0035] Figure 3 yes Figure 1 View from direction B;

[0036] Figure 4 This is a cross-sectional view (A-direction section) of a correction component that combines material feeding positioning and correction range according to an embodiment of the present utility model.

[0037] Figure 5 yes Figure 4 A magnified view of a portion of the image;

[0038] Figure 6 This is an exploded view of a correction component that combines material feeding positioning and correction range according to an embodiment of the present utility model.

[0039] Figure 7 This is a perspective view of the annular baffle and the baffle driving unit according to an embodiment of the present invention;

[0040] Figure 8 This is a perspective view of an automatic eyelet embroidery machine for caps, according to an embodiment of this utility model. Detailed Implementation

[0041] Please refer to Figures 1 to 8As shown, it illustrates the specific structure of an embodiment of the present invention.

[0042] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] A correction component that combines material placement positioning and correction range is used to correct the deviation of sewing sheets. It includes: a sheet placement panel 10, a sensing unit 20, a vacuum adsorption seat 30, a translation seat 3, a translation drive unit, a sheet blocking mechanism 60, and a controller.

[0044] The sheet placement panel 10 has a sheet placement area on its top surface; the sheet placement panel 10 is provided with a clearance groove 11 that runs vertically through the sheet placement area;

[0045] The sensing unit 20 includes a plurality of spaced position sensors 22 for sensing the edge position (usually one side edge) of the sewing sheet; the position sensors 22 are laser sensors (infrared sensors can also be used). The position sensors 22 can be mounted on a top plate 21, which is located above the sheet placement panel 10 and maintains a vertical distance. The position sensors, positioned above the sheet placement panel, sense the edge position of the sewing sheet downwards. The top plate 21 is provided with a plurality of adjustment slots, each corresponding to a position sensor, allowing the position sensors 22 to adjust their positions along their respective slots on the top plate 21 to meet the requirements of different side shapes (and corresponding key monitoring points) of different sewing sheets.

[0046] The vacuum adsorption seat 30 has a vacuum adsorption surface at its top; the top of the vacuum adsorption seat 30 extends into the clearance groove 11 so that the vacuum adsorption surface is exposed in the clearance groove 11; the periphery of the vacuum adsorption surface and the inner side of the clearance groove 11 maintain an annular movable gap; the vacuum adsorption seat 30 is connected to a rotary drive unit 70, which drives the vacuum adsorption seat 30 to rotate around the Z-axis.

[0047] The translation seat 3 is used to house the rotary drive unit 70. The translation seat 30 is also equipped with an annular baffle 63 and a baffle drive unit 61. The baffle drive unit 61 drives the annular baffle 63 to extend upward into the annular movable gap, downward away from the annular movable gap, and avoid the sheet placement panel 10. The translation seat 3 has a relatively fixed base plate and a top plate 3-1. The rotary drive unit 70 is disposed on the base plate, and the vacuum adsorption seat 30 is located above the top plate 3-1. The top plate 3-1 has a rotating hole, and the rotation axis of the rotary drive unit 70 passes upward through the rotating hole and is connected to the bottom of the vacuum adsorption seat 30. The rotary drive unit 70 includes a horizontal motor and a reversing transmission mechanism 71. The horizontal motor extends outside the base plate, and the reversing transmission mechanism 71 is located between the base plate and the top plate 3-1. The rotating shaft is connected to the output end of the reversing transmission mechanism. The baffle drive unit 61 is mounted on the top plate 3-1 and located beside the vacuum adsorption seat 30. The baffle drive unit 61 is a lifting cylinder. A telescopic rod extends from the upper end of the lifting cylinder, and a connector 62 is connected to the upper end of the telescopic rod. The upper end of the connector 62 is connected to the annular baffle 63.

[0048] The translation drive unit is used to drive the translation seat 3 to translate, and the translation refers to displacement in a plane perpendicular to the Z-axis direction.

[0049] The controller is connected to the position sensor, the vacuum suction seat, the rotation drive unit, the translation drive unit, and the baffle drive unit 61, respectively.

[0050] In this embodiment, the translation drive unit includes a Y-axis drive unit 40 and an X-axis drive unit 50; the Y-axis drive unit 40 is used to drive the vacuum adsorption seat 30 to move along the Y-axis; the X-axis drive unit 50 is used to drive the vacuum adsorption seat 30 to move along the X-axis. Typically, the Y-axis drive unit 40 and the X-axis drive unit 50 are both located below the sheet placement panel 10. For compact structural arrangement, the Y-axis drive unit 40 is mounted on the base 1, which has a Y-axis guide rail. A Y-axis movable seat 2 is fitted onto the Y-axis guide rail. The Y-axis drive unit 40 drives the Y-axis movable seat 2 to move relative to the base 1 along the Y-axis. The X-axis drive unit 50 is mounted on the Y-axis movable seat 2, which has an X-axis guide rail. An X-axis movable seat 3 (i.e., the translation seat) is fitted onto the X-axis guide rail. The X-axis drive unit 50 drives the X-axis movable seat 3 to move relative to the Y-axis movable seat 2 along the X-axis. The vacuum suction seat 30 is mounted on the X-axis movable seat 3. Specifically, the Y-axis drive unit 40 includes a first motor and a first lead screw. The Y-axis movable seat 2 is connected to a first sliding part with an internal threaded hole. The first sliding part is threadedly connected to the first lead screw, allowing the Y-axis movable seat 2 to move along the first lead screw under its drive. The X-axis drive unit 50 includes a second motor and a second lead screw. The X-axis moving seat 3 is connected to a second sliding part with an internal threaded hole. The second sliding part is threadedly connected to the second lead screw, so that the X-axis moving seat 3 is driven by the second lead screw and moves along the second lead screw.

[0051] In actual design and manufacturing, the sheet placement panel 10 can be provided with one or more sheet placement areas; in this embodiment, the sheet placement panel 10 is provided with two sheet placement areas arranged at intervals along the X-axis, which facilitates the placement of two cap pieces; correspondingly, two vacuum adsorption seats 30 are provided, and the base 1 is provided with two sets of Y-axis drive units 40 and X-axis drive units 50. The two sets of Y-axis drive units 40 are arranged side by side at intervals along the X-axis, and their respective first lead screws extend along the Y-axis and maintain a left-right distance; the two sets of X-axis drive units 50 are arranged facing each other along the X-axis, their respective second motors are arranged opposite each other along the X-axis, and their respective second lead screws are arranged facing each other close together along the X-axis.

[0052] The above-described correction component, which combines feeding positioning and correction range, is particularly suitable for correcting the deviation of softer sheets. It can be applied to sewing machines, i.e., a sewing machine that uses the correction component described above.

[0053] Next, taking an automatic hat patch embroidery machine as an example, this correction component, which takes into account both material feeding positioning and correction range, is applied to the automatic hat patch embroidery machine to correct and position the hat patch, ensuring accurate pulling during subsequent hat patch sewing and thus improving the sewing processing quality.

[0054] like Figure 8 As shown, specifically, the automatic eyelet embroidery machine for cap pieces includes:

[0055] The frame is provided with a first loading station 501, a second loading station 502, a first embroidery station 503, a second embroidery station 504, a transfer station 505, a stacking station 506 and a sewing station 507 arranged side by side from left to right.

[0056] The first automatic feeding mechanism 601 is used to automatically feed the cap piece to the first feeding station;

[0057] A first automatic flipping mechanism 602 is set corresponding to the first feeding station. The first automatic flipping mechanism is used to flip the cap piece from the first feeding station to the second feeding station.

[0058] The first embroidery eye device 603 is set up corresponding to the first embroidery eye station;

[0059] The second embroidery eye device 604 is set corresponding to the second embroidery eye station;

[0060] A second automatic flipping mechanism 605 is configured corresponding to the transfer station. This mechanism flips the cap piece after the eyelet is inserted from the transfer station to the stacking station. The stacking station 506 includes a first correction station 5061 and a second correction station 5062 arranged side-by-side. The second automatic flipping mechanism flips the cap piece after the eyelet is inserted from the transfer station to the first correction station. Both the first and second correction stations are equipped with a correction component, as described above, that balances material placement and correction range, to correct the two cap pieces at the first and second correction stations respectively. Then, an automatic mechanism moves the cap piece from the first correction station to the cap piece at the second correction station to achieve stacking.

[0061] Several material transfer robots 606 are connected between the first loading station, the second loading station, the first embroidery eye station, the second embroidery eye station, the transfer station and the stacking station to transfer cap pieces;

[0062] A sewing device 607 is equipped with a transfer pressure frame assembly for transferring and positioning cap pieces; the transfer pressure frame assembly is used to transfer the stacked cap pieces on the stacking station to the sewing station, and the sewing device is set up corresponding to the sewing station.

[0063] This automatic embroidery machine for cap pieces features a frame with a first feeding station, a second feeding station, a first embroidery station, a second embroidery station, a transfer station, and a stacking station arranged side-by-side from left to right. It also includes a first automatic feeding mechanism, a first automatic flipping mechanism, a first embroidery device, a second embroidery device, a second automatic flipping mechanism, and several material transfer robots. This allows for the automatic flipping of the reversed cap pieces to the front, ensuring that both cap pieces are embroidered with the front facing up. This facilitates better control and ensures consistent embroidery quality. Furthermore, the automatic flipping and stacking of the two embroidered cap pieces into a single unit results in excellent color consistency. Since there is little or no color difference between adjacent fabric pieces, using two pieces from the same unit on the same cap ensures better color uniformity, meeting higher quality requirements and improving processing yield. Furthermore, it achieves automatic flipping of the feed, automatic embroidery, automatic stacking of the pieces into a group, automatic feeding of the stacked pieces into a group to the sewing device for sewing, and automatic unloading after sewing. Its high degree of automation greatly reduces manual intervention, effectively improves processing efficiency and yield, and is suitable for widespread application.

[0064] The key design feature of this invention lies in the arrangement of a sensing unit, a vacuum adsorption seat, a rotary drive unit, a translation seat, a translation drive unit, an annular baffle, and a baffle drive unit. This arrangement ensures that, in the waiting state, the annular baffle is in an upward position, filling the annular gap between the vacuum adsorption surface and the clearance groove. This guarantees reliable positioning of the sheet upon arrival at the sheet placement area, preventing softer sheets from collapsing due to the annular gap. When the vacuum adsorption surface adheres to the bottom of the sheet, the annular baffle descends away from the annular gap and avoids the sheet placement panel, freeing up the annular gap. This allows the vacuum adsorption surface a sufficiently large translational correction space within the clearance groove, resulting in a sufficiently large translational stroke. Even sheets with large deviations can achieve automatic correction, further reducing the requirements for initial material feeding and effectively improving correction tolerance.

[0065] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A correction component that combines material feeding positioning and correction range, characterized in that, Including: A sheet placement panel has a sheet placement area on its top surface; the sheet placement panel is provided with a clearance groove that runs vertically through the sheet placement area; The sensing unit includes a plurality of position sensors arranged at intervals for sensing the edge position of the sewn sheet; A vacuum adsorption seat has a vacuum adsorption surface at its top; the top of the vacuum adsorption seat extends into the clearance groove so that the vacuum adsorption surface is exposed in the clearance groove, and the periphery of the vacuum adsorption surface and the inner side of the clearance groove maintain an annular movable gap; the vacuum adsorption seat is connected to a rotary drive unit, which drives the vacuum adsorption seat to rotate around the Z-axis. A translational seat is used to mount the rotation drive unit; the translational seat is also provided with an annular baffle and a baffle drive unit, the baffle drive unit drives the annular baffle to extend upward into the annular movable gap, downward away from the annular movable gap and avoid the sheet placement panel; A translation drive unit is used to drive the translation seat to translate. The controller is connected to the position sensor, the vacuum suction seat, the rotation drive unit, the baffle drive unit, and the translation drive unit, respectively.

2. The correction component that combines material feeding positioning and correction range according to claim 1, characterized in that, The translation drive unit includes a Y-axis drive unit and an X-axis drive unit; the Y-axis drive unit is mounted on a base, and a Y-axis movable seat is provided on the base; the Y-axis drive unit drives the Y-axis movable seat to move relative to the base along the Y-axis; the X-axis drive unit is mounted on the Y-axis movable seat, and the translation seat is provided on the Y-axis movable seat; the X-axis drive unit drives the translation seat to move relative to the Y-axis movable seat along the X-axis.

3. A correction component that combines material feeding positioning and correction range according to claim 2, characterized in that, The translation seat has a relatively fixed base plate and a top plate. The rotation drive unit is disposed on the base plate, and the vacuum adsorption seat is located above the top plate. The top plate is provided with a rotation hole, and the rotation axis of the rotation drive unit passes upward through the rotation hole and is connected to the bottom of the vacuum adsorption seat.

4. A correction component that combines material feeding positioning and correction range according to claim 3, characterized in that, The baffle drive unit is mounted on the top plate and located beside the vacuum adsorption seat.

5. A correction component that combines material feeding positioning and correction range according to claim 1, characterized in that, The baffle drive unit is a lifting cylinder.

6. A correction component that combines material feeding positioning and correction range according to claim 5, characterized in that, The upper end of the lifting cylinder extends a telescopic rod, the upper end of which is connected to a connector, and the upper end of the connector is connected to the annular baffle.

7. A correction component that combines material feeding positioning and correction range according to claim 3, characterized in that, The rotary drive unit includes a horizontal motor and a reversing transmission mechanism. The horizontal motor extends outside the base plate, and the reversing transmission mechanism is located between the base plate and the top plate. The rotary shaft is connected to the output end of the reversing transmission mechanism.

8. A correction component that combines material feeding positioning and correction range according to claim 1, characterized in that, The position sensor is mounted on a top plate, and the position sensor on the top plate is adjustable. The position sensor is located above the sheet placement panel to sense the edge position of the sewing sheet downwards.

9. A sewing machine, characterized in that: The application includes a correction component that combines material feeding positioning and correction range as described in any one of claims 1 to 8.

10. A embroidered eye machine, characterized in that, Including: The machine frame is equipped with a first loading station, a second loading station, a first embroidery eye station, a second embroidery eye station, a transfer station, a stacking station, and a sewing station arranged side by side from left to right. The first automatic feeding mechanism is used to automatically feed the cap piece to the first feeding station; A first automatic flipping mechanism is provided corresponding to the first feeding station. The first automatic flipping mechanism is used to flip the cap piece from the first feeding station to the second feeding station. The first embroidery eye device is set up corresponding to the first embroidery eye station; The second embroidery eye device is set up corresponding to the second embroidery eye station; A second automatic flipping mechanism is provided corresponding to the transfer station. The second automatic flipping mechanism is used to flip the cap piece after the eyelet from the transfer station to the stacking station. The stacking station includes a first correction station and a second correction station arranged side by side. The second automatic flipping mechanism flips the cap piece after the eyelet from the transfer station to the first correction station. Both the first correction station and the second correction station are provided with a correction component as described in any one of claims 1-8, which takes into account both material feeding positioning and correction range, so as to correct the two cap pieces at the first correction station and the second correction station respectively. Several material transfer robots are connected between the first loading station, the second loading station, the first embroidery eye station, the second embroidery eye station, the transfer station, and the stacking station to transfer cap pieces; A sewing device; it is equipped with a transfer pressure frame assembly for transferring and positioning cap pieces; the transfer pressure frame assembly is used to transfer the stacked cap pieces on the stacking station to the sewing station, and the sewing device is set up corresponding to the sewing station.