Pillowcase production equipment and manufacturing method thereof

Abstract

The invention provides pillowcase production equipment and a manufacturing method thereof. The pillowcase production equipment comprises a cloth folding mechanism, a short edge sewing mechanism, a cutting mechanism and a long edge sewing mechanism. The cloth folding mechanism comprises a base cloth conveying frame, a long covering cloth conveying frame, a short covering cloth conveying frame and a cloth reversing frame, the cloth reversing frame comprises two reversing rollers, and the two reversing rollers are arranged in a staggered X shape; the short edge sewing module comprises a first support and two first sewing machines. The cutting mechanism comprises a first cloth pulling frame and a cutting knife, the long edge sewing mechanism comprises a long-strip-shaped supporting platform, a first conveying belt is arranged above the supporting platform, and second sewing machines are arranged on the two sides of the supporting platform. The base cloth, the long covering cloth and the short covering cloth are overlapped and placed through the cloth folding mechanism, one end of the long covering cloth is sewn with one end of the base cloth through the short edge sewing mechanism, one end of the short covering cloth is sewn with the other end of the base cloth, the pillowcase with openings in the two sides is formed through tailoring of the tailoring mechanism, and finally the two sides in the length direction are sewn through the long edge sewing mechanism to form the complete pillowcase. And automatic pillowcase production is realized.

Description

Technical Field

[0001] The invention relates to the technical field of cloth processing, and in particular to pillowcase production equipment and a manufacturing method thereof. Background Art

[0002] The pillowcase is used to wrap the pillow core, like a cloth bag, which is convenient for people to replace and clean. Figure 1 As shown, most of the pillowcases on the market currently include a base fabric, a long cover fabric and a short cover fabric. The three sides of the long cover fabric are sewn and fixed to the three sides of the bottom to form an open cloth bag, and then the three sides of the short cover fabric are sewn to cover one end of the cloth bag opening. The unsewn side of the long cover fabric and the short cover fabric forms a Z-shaped pillow core loading entrance, that is, a pillowcase is formed. At present, the entire production process of pillowcases is mostly operated manually. First, three different specifications of fabrics are cut, and then the three fabrics are overlapped and arranged. The traditional sewing machine working mode is used to sew to form a pillowcase. Manual control of cutting fabrics is prone to errors. Manual operation of the sewing machine to sew fabrics is time-consuming and labor-intensive, resulting in low work efficiency. There is currently no automatic production equipment for this traditional pillowcase on the market, so a fully automatic pillowcase production equipment is urgently needed. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a pillowcase production device and a manufacturing method thereof to solve the problems mentioned in the above background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a pillowcase production device, comprising a cloth stacking mechanism, a short edge sewing mechanism, a cutting mechanism and a long edge sewing mechanism which are arranged in sequence;

[0005] The cloth stacking mechanism comprises a base cloth conveying frame, a long cover cloth conveying frame, a short cover cloth conveying frame and a cloth reversing frame, wherein the base cloth conveying frame, the long cover cloth conveying frame and the short cover cloth conveying frame are arranged around three sides of the cloth reversing frame, and the cloth reversing frame comprises two reversing rollers, and the two reversing rollers are arranged in a staggered X shape;

[0006] The short side sewing module comprises a first bracket and two first sewing machines, and the two first sewing machines are arranged oppositely at two ends of the first bracket;

[0007] The cutting mechanism comprises a first cloth pulling frame and a cutting knife, wherein the first cloth pulling frame is arranged on a side of the cutting knife away from the short edge sewing mechanism, the first cloth pulling frame is used to pull the cloth to a specified position, and the cutting knife is used to cut the cloth;

[0008] The long side sewing mechanism comprises a long strip-shaped supporting platform, a first conveyor belt is arranged above the supporting platform, and second sewing machines are arranged on both sides along the length direction of the supporting platform.

[0009] Furthermore, the long cover cloth conveying rack includes a second conveyor belt, a third sewing machine and a trademark machine, and the third sewing machine and the trademark machine are arranged on one side of the second conveyor belt along the transmission direction.

[0010] Furthermore, the short cover cloth conveying rack includes a third conveyor belt and a fourth sewing machine, and the fourth sewing machine is installed on one side of the third conveyor belt along the transmission direction.

[0011] Furthermore, a pressing and conveying mechanism is further arranged above the first cloth pulling frame and the cutting knife, and the pressing and conveying mechanism comprises a movable frame and a rotatable supporting platform, a cloth pressing rod is arranged on the movable frame, and the supporting platform is arranged below the cloth pressing rod.

[0012] Furthermore, the cutting mechanism further comprises a sensor, and the sensor is arranged on a side of the cutting knife moving direction close to the first bracket.

[0013] Furthermore, a fixing plate is installed above the supporting platform, and the fixing plate has several pressing cylinders, a transverse axis is set on the piston rod of the pressing cylinder, rollers are installed at both ends of the transverse axis, and the first conveyor belt is installed on the rollers.

[0014] Furthermore, a fourth conveyor belt is further installed on the support platform, and the fourth conveyor belt is arranged below the first conveyor belt.

[0015] Furthermore, a second cloth-pulling rack and a cloth conveyor belt are arranged at the end of the support platform, the second cloth-pulling rack is arranged at one side of the support platform, and the cloth conveyor belt is arranged below the second cloth-pulling rack.

[0016] A production method, using the pillowcase production equipment as described in any one of claims 1 to 8, comprising the following steps:

[0017] S1: manually placing a whole roll of base fabric on the base fabric conveying rack, placing a whole roll of long cover fabric on the long cover fabric conveying rack, placing a whole roll of short cover fabric on the short cover fabric conveying rack, passing the free end of the base fabric from under the reversing roller, passing the free end of the long cover fabric around one of the reversing rollers and passing from above the base fabric, and passing the free end of the short cover fabric around another reversing roller and passing from above the base fabric;

[0018] S2: after the base fabric, the long cover fabric and the short cover fabric are overlapped, they are passed between the two first sewing machines to sew one end of the long cover fabric with one end of the base fabric, and one end of the short cover fabric with the other end of the base fabric;

[0019] S3: the first cloth pulling frame pulls the sewn base cloth, long cover cloth and short cover cloth, and controls the cutting knife to cut the three kinds of cloth, thereby initially forming a pillowcase with two ends sewn and two sides opened along the length direction;

[0020] S4: controlling the first conveyor belt to press the initially formed pillowcase onto the support platform and convey it through the two second sewing machines to sew the initially formed pillowcase on both sides along the length direction to form a complete pillowcase;

[0021] S5: Finally, the second cloth pulling rack at the end of the support platform pulls the pillowcases to the cloth conveyor belt, and the stacked pillowcases are conveyed away via the cloth conveyor belt.

[0022] The beneficial effects of the present invention are:

[0023] The pillowcase production equipment of the present invention comprises a cloth stacking mechanism, a short side sewing mechanism, a cutting mechanism and a long side sewing mechanism which are arranged in sequence; the cloth stacking mechanism comprises a base cloth conveying frame, a long cover cloth conveying frame, a short cover cloth conveying frame and a cloth reversing frame, the base cloth conveying frame, the long cover cloth conveying frame and the short cover cloth conveying frame are arranged around three sides of the cloth reversing frame, the cloth reversing frame comprises two reversing rollers, and the two reversing rollers are arranged in a staggered X shape; the short side sewing module comprises a first bracket and two first sewing machines; the cutting mechanism comprises a first cloth pulling frame and a cutting knife, the long side sewing mechanism comprises a long strip supporting platform, a first conveyor belt is arranged above the supporting platform, and second sewing machines are arranged on both sides along the length direction of the supporting platform. The base cloth, long cover cloth and short cover cloth are overlapped and arranged through the cloth stacking mechanism, one end of the long cover cloth is sewn with one end of the base cloth, and one end of the short cover cloth is sewn with the other end of the base cloth through the short side sewing mechanism, and a pillowcase with openings on both sides is formed by cutting through the cutting mechanism, and finally a complete pillowcase is formed by sewing both sides along the length direction through the long side sewing mechanism, thereby realizing automated pillowcase production. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 An exploded schematic diagram of a pillowcase made by the present invention;

[0026] Figure 2 A schematic structural diagram of the pillowcase production equipment of the present invention;

[0027] Figure 3 A schematic diagram of the structure of the folding mechanism of the pillowcase production equipment of the present invention;

[0028] Figure 4 A schematic structural diagram of the folding mechanism of the pillowcase production equipment of the present invention from another angle;

[0029] Figure 5 A schematic structural diagram of a short side sewing mechanism of a pillowcase production device according to the present invention;

[0030] Figure 6 A schematic structural diagram of a symmetrical sewing mechanism of a pillowcase production device according to the present invention;

[0031] Figure 7 A schematic structural diagram of a cutting mechanism and a pressing and conveying mechanism of a pillowcase production device according to the present invention;

[0032] Figure 8 A schematic structural diagram of a compacting and conveying mechanism of a pillowcase production device according to the present invention;

[0033] Fig. 9 A schematic structural diagram of a long side sewing mechanism of a pillowcase production device according to the present invention;

[0034] Fig.10 A schematic diagram of the partial structure of the long side sewing mechanism of the pillowcase production equipment of the present invention;

[0035] Fig.11 A schematic structural diagram of a second cloth pulling frame and a cloth conveyor belt of the pillowcase production equipment described in the present invention.

[0036] Main component symbols

[0037] 10. Cloth stacking mechanism; 101. Base cloth conveying rack; 102. Long cover cloth conveying rack; 1021. Second conveyor belt; 1022. Third sewing machine; 1023. Trademark machine; 103. Short cover cloth conveying rack; 1031. Third conveyor belt; 1032. Fourth sewing machine; 104. Cloth reversing rack; 1041. Reversing roller;

[0038] 20. short side sewing mechanism; 201. first bracket; 202. first sewing machine;

[0039] 30. Cutting mechanism; 301. First cloth pulling frame; 302. Cutting knife; 303. Sensor;

[0040] 40. Compression and transmission mechanism; 401. Moving frame; 402. Support platform; 403. Cloth pressing rod;

[0041] 50, long side sewing mechanism; 501, support platform; 502, fixed plate; 503, roller; 504, first conveyor belt; 505, fourth conveyor belt; 506, second sewing machine;

[0042] 60. Second cloth-pulling rack;

[0043] 70. Fabric conveyor belt;

[0044] 80, base cloth; 801, long cover cloth; 802, short cover cloth. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0046] Embodiment 1

[0047] like Figure 1 As shown, most of the pillowcases currently on the market include a base fabric 80, a long cover fabric 801 and a short cover fabric 802. The three sides of the long cover fabric 801 are sewn and fixed to the three sides of the bottom to form an open cloth bag, and then the three sides of the short cover fabric 802 are sewn to cover one end of the opening of the cloth bag. The unsewn side of the long cover fabric 801 and the short cover fabric 802 forms an inlet for the pillow core, thus forming a pillowcase.

[0048] Please refer to Figure 2 The present invention provides a pillowcase production device and a manufacturing method thereof, comprising a cloth stacking mechanism 10, a short-side sewing mechanism 20, a cutting mechanism 30 and a long-side sewing mechanism 50 which are arranged in sequence; the cloth stacking mechanism 10 is used to position and transmit the three kinds of fabrics constituting the pillowcase, and sew one end of a long cover cloth 801 with one end of a base cloth 80 through the short-side sewing mechanism 20, and sew one end of a short cover cloth 802 with the other end of the base cloth 80; the cutting mechanism 30 cuts to form a single pillowcase with openings on both sides, and finally sews the long sides of the pillowcase through the long-side sewing mechanism 50, thereby completing the automatic production of the pillowcase.

[0049] Please refer to Figure 3-4The cloth stacking mechanism 10 includes a base cloth conveying frame 101, a long cover cloth conveying frame 102, a short cover cloth conveying frame 103 and a cloth reversing frame 104. The base cloth conveying frame 101, the long cover cloth conveying frame 102 and the short cover cloth conveying frame 103 are arranged around three sides of the cloth reversing frame 104. Specifically, the base cloth conveying frame 101 includes a group of active conveying rollers and a plurality of auxiliary conveying rollers. A whole roll of base cloth 80 is placed on the frame, and the free end is conveyed to the cloth reversing frame 104 through the active conveying rollers and the auxiliary rollers.

[0050] Please refer to Figure 3-4 The long cover cloth conveying rack 102 includes a second conveyor belt 1021, a third sewing machine 1022 and a trademark machine 1023. The third sewing machine 1022 and the trademark machine 1023 are arranged on one side of the second conveyor belt 1021 along the transmission direction. The whole roll of long cover cloth 801 cloth is placed on the rack, and the free end of the long cover cloth 801 cloth is transmitted to the cloth reversing rack 104 via the second conveyor belt 1021. The trademark machine 1023 transmits the trademark to one side of the long cover cloth 801 cloth, and then sews the trademark to one side of the long cover cloth 801 cloth through the third sewing machine 1022, thereby realizing the function of sewing the trademark to the long cover cloth 801 cloth and transmitting it to the cloth reversing rack 104.

[0051] Please refer to Figure 3-4 The short cover cloth conveying rack 103 includes a third conveyor belt 1031 and a fourth sewing machine 1032, and the fourth sewing machine 1032 is installed on one side of the third conveyor belt 1031 along the transmission direction. Specifically, a whole roll of short cover cloth 802 is placed on the rack, and the free end of the short cover cloth 802 is conveyed to the fourth sewing machine 1032 via the third conveyor belt 1031. The fourth sewing machine 1032 performs hemming processing on one side of the short cover cloth 802, and the hemmed short cover cloth 802 is conveyed to the cloth reversing rack 104.

[0052] Please refer to Figure 3-4 The cloth reversing frame 104 includes two reversing rollers 1041, and the two reversing rollers 1041 are staggered in an X-shape; specifically, the free end of the base cloth 80 passes under the two reversing rollers 1041, and the free end of the long cover cloth 801 with the trademark sewn on it wraps around the first reversing roller 1041 at a horizontal angle of 90° and is transmitted from one side of the base cloth 80 in the same direction as the base cloth 80; the free end of the short cover cloth 802 wraps around another reversing roller 1041 and is transmitted from the other side of the base cloth 80 in the same direction as the base cloth 80, that is, the long cover cloth 801, the short cover cloth 802 and the base cloth 80 are overlapped and transmitted according to the predetermined position.

[0053] Please refer to Figure 5The short side sewing module includes a first bracket 201 and two first sewing machines 202, and the two first sewing machines 202 are relatively arranged at two ends of the first bracket 201; specifically, the overlapping three layers of cloth are put on the first bracket 201, and the first bracket 201 is provided with an active roller for conveying the three layers of cloth, and the three layers of cloth pass through between the two first sewing machines 202, and the first sewing machine 202 on one side sews one side of the short cover cloth 802 with one side of the base cloth 80, and the first sewing machine 202 on the other side sews one side of the long cover cloth 801 with the other side of the base cloth 80, wherein the relative positions of the two first sewing machines 202 are adjustable to meet the needs of making pillowcases of different lengths.

[0054] Please refer to Figure 6-8 The cutting mechanism 30 includes a first cloth pulling frame 301 and a cutting knife 302. The first cloth pulling frame 301 is arranged on a side of the cutting knife 302 away from the short side sewing mechanism 20. The first cloth pulling frame 301 is used to pull the cloth to a specified position, and the cutting knife 302 is used to cut the cloth. Specifically, the cutting mechanism 30 further includes a sensor 303. The sensor 303 is arranged on a side of the cutting knife 302 that is close to the first bracket 201 in the moving direction. The three-layer cloth sewn on both sides is transmitted to the cutting mechanism 30. The sensor 303 is used to detect the position of the sensing trademark. When the sensor 303 detects the trademark on one side, the control The first cloth pulling rack 301 is controlled to be close to the cloth, and the first cloth pulling rack 301 is installed at the bottom of the two slide rails. The first cloth pulling rack 301 is driven by a motor to be close to or away from one side of the cutting mechanism 30. The first cylinder and the first pressing plate are arranged on the side of the first cloth pulling rack 301 close to the cutting mechanism 30. The piston rod of the first cylinder is connected to the first pressing plate, and the first pressing plate is hinged to the first cloth pulling rack 301. The first cylinder is controlled to drive the first pressing plate to press or loosen the cloth. After the first pressing plate presses the cloth, the first cloth pulling rack 301 pulls the cloth, and then controls the cutting knife 302 to cut the cloth, thereby initially forming a pillowcase with two ends sewn but two sides open.

[0055] Please refer to Figure 6-8A pressing and conveying mechanism 40 is further arranged above the first cloth pulling frame 301 and the cutting knife 302 . The pressing and conveying mechanism 40 includes a moving frame 401 and a rotatable supporting platform 402 . A cloth pressing rod 403 is arranged on the moving frame 401 , and the supporting platform 402 is arranged below the cloth pressing rod 403 . Specifically, the movable frame 401 is controlled to be above the cut cloth, and the cloth pressing rod 403 is controlled to press down both sides of the cloth on the supporting platform 402. In the present embodiment, half of the supporting platform 402 is fixed and the other half can rotate. When the first cloth pulling frame 301 is close to the cutting knife 302, the rotatable half of the supporting platform 402 is rotated so that the supporting platform 402 avoids collision with the first cloth pulling frame 301. After the first cloth pulling frame 301 pulls the cloth to the specified position, the rotatable supporting platform 402 is controlled to receive the cloth, and the cloth pressing rod 403 is controlled to press down both sides of the cloth on the supporting platform 402. Since the upper end surface of the supporting platform 402 is smooth and the bottom of the cloth pressing rod 403 is a rough surface, the cloth pressing rod 403 pressing down the cloth can drive the cloth to move on the upper end surface of the supporting platform. Moving the movable frame 401 drives the cloth pressing rod 403 to drive the cloth to move on the upper end surface of the supporting platform toward the supporting platform 501.

[0056] Please refer to Figure 9-11 The long side sewing mechanism 50 includes a long strip support platform 501, a first conveyor belt 504 is arranged above the support platform 501, and second sewing machines 506 are arranged on both sides of the length direction of the support platform 501. Specifically, a fixed plate 502 is installed above the support platform 501, and a plurality of downward pressing cylinders are arranged on the fixed plate 502. The piston rod of the downward pressing cylinder is provided with a horizontal axis, and rollers 503 are installed at both ends of the horizontal axis. The first conveyor belt 504 is installed on the roller 503, and the downward pressing cylinder is controlled to drive the roller 503 to press down, that is, the first conveyor belt 504 is pressed down on the fabric, and the transmission of the first conveyor belt 504 is controlled to drive the pillowcase with openings on both sides to pass through the two second sewing machines 506, and the pillowcase is sewn on both sides along the length direction to form a complete pillowcase. Furthermore, a fourth conveyor belt 505 is further installed on the support platform 501, and the fourth conveyor belt 505 is arranged below the first conveyor belt 504. The fourth conveyor belt 505 and the first conveyor belt 504 cooperate in transmission, and the cloth is transmitted from the fourth conveyor belt 505 and the first conveyor belt 504 through the two second sewing machines 506. The coordinated transmission of the fourth conveyor belt 505 and the first conveyor belt 504 is faster, thereby improving efficiency.

[0057] Please refer to Figure 9-11A second cloth-pulling rack 60 and a cloth conveyor belt 70 are provided at the end of the support platform 501. The second cloth-pulling rack 60 is provided on one side of the support platform 501, and the cloth conveyor belt 70 is provided below the second cloth-pulling rack 60. Specifically, the stitched pillowcases are conveyed to the end of the support platform 501, and the second cloth-pulling rack 60 is controlled to approach the pillowcases. The second cloth-pulling rack 60 includes an L-shaped support plate and a plurality of cylinders. The cylinders are controlled to press down and clamp the pillowcases on the L-shaped support plate and move them to the cloth conveyor belt 70. The pillowcases to be stacked are conveyed out via the cloth conveyor belt 70.

[0058] Embodiment 2

[0059] A production method, using the pillowcase production equipment as described above, comprises the following steps:

[0060] S1: manually placing a whole roll of base fabric 80 on the base fabric conveying rack 101, placing a whole roll of long cover fabric 801 on the long cover fabric conveying rack 102, placing a whole roll of short cover fabric 802 on the short cover fabric conveying rack 103, passing the free end of the base fabric 80 from under the reversing roller 1041, passing the free end of the long cover fabric 801 around one of the reversing rollers 1041 and passing it from above the base fabric 80, and passing the free end of the short cover fabric 802 around another reversing roller 1041 and passing it from above the base fabric 80, so as to realize the overlapping transmission of the three fabrics constituting the pillowcase;

[0061] S2: After the base fabric 80, the long cover fabric 801 and the short cover fabric 802 are overlapped, they are passed between the two first sewing machines 202 to sew one end of the long cover fabric 801 with one end of the base fabric 80, and one end of the short cover fabric 802 with the other end of the base fabric 80, so as to complete the sewing of the two ends of the pillowcase;

[0062] S3: The first cloth pulling frame 301 pulls the sewn base cloth 80, the long cover cloth 801 and the short cover cloth 802, and controls the cutting knife 302 to cut the three sewn cloths, thereby initially forming a pillowcase with two ends sewn and two sides opened along the length direction;

[0063] S4: Control the first conveyor belt 504 to press the initially formed pillowcase onto the support platform 501 and convey it through the two second sewing machines 506 to sew the initially formed pillowcase on both sides along the length direction to form a complete pillowcase;

[0064] S5: Finally, the second cloth pulling rack 60 at the end of the supporting platform 501 pulls the pillowcases to the cloth conveyor belt 70 , and the stacked pillowcases are conveyed away via the cloth conveyor belt 70 .

[0065] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0066] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pillowcase production equipment, characterized in that: It includes a cloth stacking mechanism, a short side sewing mechanism, a cutting mechanism and a long side sewing mechanism which are arranged in sequence; The cloth stacking mechanism comprises a base cloth conveying frame, a long cover cloth conveying frame, a short cover cloth conveying frame and a cloth reversing frame, wherein the base cloth conveying frame, the long cover cloth conveying frame and the short cover cloth conveying frame are arranged around three sides of the cloth reversing frame, and the cloth reversing frame comprises two reversing rollers, and the two reversing rollers are arranged in a staggered X shape; The short side sewing module comprises a first bracket and two first sewing machines, and the two first sewing machines are arranged oppositely at two ends of the first bracket; The cutting mechanism comprises a first cloth pulling frame and a cutting knife, wherein the first cloth pulling frame is arranged on a side of the cutting knife away from the short edge sewing mechanism, the first cloth pulling frame is used to pull the cloth to a specified position, and the cutting knife is used to cut the cloth; The long side sewing mechanism comprises a long strip-shaped supporting platform, a first conveyor belt is arranged above the supporting platform, and second sewing machines are arranged on both sides along the length direction of the supporting platform.

2. The pillowcase production equipment according to claim 1, characterized in that: The long cover cloth conveying frame comprises a second conveyor belt, a third sewing machine and a trademark machine, and the third sewing machine and the trademark machine are arranged on one side of the second conveyor belt along the transmission direction.

3. The pillowcase production equipment according to claim 1, characterized in that: The short cover cloth conveying rack includes a third conveyor belt and a fourth sewing machine, and the fourth sewing machine is installed on one side of the third conveyor belt along the transmission direction.

4. The pillowcase production equipment according to claim 1, characterized in that: A pressing and conveying mechanism is further arranged above the first cloth pulling frame and the cutting knife. The pressing and conveying mechanism comprises a movable frame and a rotatable supporting platform. A cloth pressing rod is arranged on the movable frame, and the supporting platform is arranged below the cloth pressing rod.

5. The pillowcase production equipment according to claim 1, characterized in that: The cutting mechanism further comprises a sensor, and the sensor is arranged on a side of the cutting knife moving direction close to the first bracket.

6. The pillowcase production equipment according to claim 1, characterized in that: A fixing plate is installed above the supporting platform, and the fixing plate has a plurality of pressing cylinders. The piston rods of the pressing cylinders are provided with a transverse axis, and rollers are installed at both ends of the transverse axis. The first conveyor belt is installed on the rollers.

7. The pillowcase production equipment according to claim 1, characterized in that: A fourth conveyor belt is further installed on the supporting platform, and the fourth conveyor belt is arranged below the first conveyor belt.

8. The pillowcase production equipment according to claim 1, characterized in that: A second cloth-pulling rack and a cloth-conveying belt are arranged at the end of the supporting platform, the second cloth-pulling rack is arranged at one side of the supporting platform, and the cloth-conveying belt is arranged below the second cloth-pulling rack.

9. A manufacturing method, using the pillowcase production equipment as claimed in any one of claims 1 to 8, comprising the following steps: S1: manually placing a whole roll of base fabric on the base fabric conveying rack, placing a whole roll of long cover fabric on the long cover fabric conveying rack, placing a whole roll of short cover fabric on the short cover fabric conveying rack, passing the free end of the base fabric from under the reversing roller, passing the free end of the long cover fabric around one of the reversing rollers and passing from above the base fabric, and passing the free end of the short cover fabric around another reversing roller and passing from above the base fabric; S2: after the base fabric, the long cover fabric and the short cover fabric are overlapped, they are passed between the two first sewing machines to sew one end of the long cover fabric with one end of the base fabric, and one end of the short cover fabric with the other end of the base fabric; S3: the first cloth pulling frame pulls the sewn base cloth, long cover cloth and short cover cloth, and controls the cutting knife to cut the three kinds of cloth, thereby initially forming a pillowcase with two ends sewn and two sides opened along the length direction; S4: controlling the first conveyor belt to press the initially formed pillowcase onto the support platform and convey it through the two second sewing machines to sew the initially formed pillowcase on both sides along the length direction to form a complete pillowcase; S5: Finally, the second cloth pulling rack at the end of the support platform pulls the pillowcases to the cloth conveyor belt, and the stacked pillowcases are conveyed away via the cloth conveyor belt.

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