A box sewing machine

Abstract

This invention discloses a carton sewing machine, comprising a frame, a paper feed base plate, an upper part of the sewing head, a lower part of the sewing head, a first paper feeding transmission mechanism, and a second paper feeding transmission mechanism. The frame includes a base and a support frame, with the support frame fixed to the top of the base. The paper feed base plate is fixed to the support frame. The upper part of the sewing head is fixed to the support frame. The lower part of the sewing head is fixed to the extension end of the paper feed base plate, and the lower part of the sewing head corresponds to the upper part of the sewing head above it. The first paper feeding transmission mechanism is installed at the extension end of the lower part of the sewing head. The second paper feeding transmission mechanism is fixed to the upper part of the sewing head, and the second paper feeding transmission mechanism corresponds to the first paper feeding transmission mechanism below it. The folded cylindrical carton of this invention enters through the paper feed base plate. The first and second paper feeding transmission mechanisms drive the carton forward and also provide pressure. The upper and lower parts of the sewing head work together to sew the carton. The sealing process is simple, using thread to sew the carton, resulting in low cost, a reliable bond, and environmental friendliness.

Description

Technical Field

[0001] This invention relates to the field of cardboard packaging equipment technology, and more specifically to a carton sewing machine. Background Technology

[0002] Sealing is the final step in cardboard box packaging. Currently, it is usually done by using a stapling machine to seal the boxes. However, the stapling method uses metal staples, which are not only costly but also susceptible to moisture, easy to rust, and not environmentally friendly. The staples must be removed manually when the cardboard boxes are recycled. Alternatively, a gluing machine can be used to seal the boxes. However, the glue used for gluing is susceptible to moisture. In addition, only one side of the paper is glued during gluing, so the adhesion strength is low and the bond is not reliable.

[0003] Therefore, providing a low-cost, robust, and environmentally friendly box sewing machine is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the present invention provides a box sewing machine that is low in cost, has a reliable connection, and is environmentally friendly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A box sewing machine, comprising:

[0007] A frame, the frame including a base and a support frame, the support frame being fixed to the top of the base;

[0008] A paper feed base plate, which is fixed on the support frame;

[0009] The upper part of the machine head is fixed to the support frame;

[0010] The lower part of the paper head is fixed to the extension end of the paper feed base plate, and the lower part of the paper head corresponds to the upper part of the paper head above it;

[0011] A first paper feeding transmission mechanism is installed at the extension end of the lower part of the machine head;

[0012] The second paper feeding drive mechanism is fixed to the upper part of the print head and corresponds to the first paper feeding drive mechanism below it.

[0013] By adopting the above technical solutions, the beneficial effects of the present invention are as follows:

[0014] The folded carton enters through the paper feed base plate. The first and second paper feed transmission mechanisms drive the carton forward and also provide pressure. The upper and lower parts of the machine head work together to sew the carton. The sealing process is simple, using thread to sew the carton together. It is low-cost, has a reliable connection, and is environmentally friendly.

[0015] Furthermore, the upper part of the machine head includes a first servo motor, an eccentric shaft, a needle rod, and two needles. The first servo motor is mounted on the support frame. The eccentric shaft is fixedly connected to the first main shaft of the first servo motor. The needle rod is connected to the eccentric shaft through a connecting rod. The two needles are spaced apart and mounted at the bottom end of the needle rod.

[0016] The beneficial effect of adopting the above-mentioned further technical solution is that the first servo motor drives the eccentric shaft to rotate, and under the drive of the connecting rod, the needle rod moves up and down reciprocally, realizing the up and down movement of the two needles.

[0017] Furthermore, the lower part of the machine head includes a worktable, a second servo motor, a drive gear, a driven gear, a first shaft, a second shaft, and a bending needle. The worktable is horizontally fixed to the extension end of the paper feed base plate; the second servo motor is fixed to the bottom of the worktable; the drive gear is mounted on the second spindle of the second servo motor; the driven gear is mounted on the first shaft, and the drive gear meshes with the driven gear; the vertically arranged first shaft and second shaft are connected by bevel gear transmission; the bending needle is mounted on the second shaft.

[0018] The beneficial effect of adopting the above-mentioned further technical solution is that the second servo motor drives the active gear to rotate, which in turn drives the driven gear and the first shaft to rotate. Under the action of bevel gear transmission, the second shaft rotates, driving the curved needle to cooperate with the two needles to complete the sewing action.

[0019] Furthermore, the support frame includes an upright column, a support column, and a connecting column. The upright column is fixed to the top of the base; the support column is horizontally fixed to the upright column; the connecting column is fixed to the side of the support column; the first servo motor is mounted on the upright column, and the first spindle extends into the support column; the paper feed base plate is fixed to the extension end of the connecting column.

[0020] Furthermore, the first paper feeding transmission mechanism includes a rotating shaft, a motor, and a paper feeding roller. The rotating shaft is installed at the extension end of the worktable; the output shaft of the motor is fixedly connected to the rotating shaft; and the paper feeding roller is installed on the rotating shaft.

[0021] The beneficial effect of adopting the above-mentioned further technical solution is that the rotating shaft rotates under the drive of the motor, which drives the paper feeding roller to rotate, thereby driving the carton forward.

[0022] Furthermore, the second paper feeding transmission mechanism includes a geared motor, a ball screw, a guide rail, a connecting frame, a third servo motor, a drive wheel, a cylinder, an adjusting plate, a driven shaft, a driven wheel, a synchronous shaft, a synchronous wheel, and a belt. The geared motor is fixed to the upper part of the print head via a motor bracket; the screw of the ball screw is connected to the output shaft of the geared motor; the guide rail is vertically fixed to the upper part of the print head; the connecting frame is fitted onto the guide rail; the nut of the ball screw is fixedly connected to the connecting frame; the third servo motor is fixed to the connecting frame; the drive wheel is mounted on the output shaft of the third servo motor; the cylinder body of the cylinder is connected to the connecting frame; one end of the adjusting plate is connected to the telescopic rod of the cylinder; the driven shaft is mounted between the connecting frame and the middle of the adjusting plate; the driven wheel is mounted on the driven shaft; the synchronous shaft is mounted between the connecting frame and the other end of the adjusting plate; the synchronous wheel is mounted on the synchronous shaft; the drive wheel, the driven wheel, and the synchronous wheel are connected by the belt drive.

[0023] The beneficial effects of adopting the above-mentioned further technical solution are as follows: the geared motor drives the ball screw to rotate, thereby driving the connecting frame to move up and down on the guide rail to achieve height adjustment, so as to adjust the gap between the belt and the paper feeding roller, which is suitable for paperboard of different thicknesses. The third servo motor drives the drive wheel to rotate, and under the transmission action of the belt, the driven wheel and the synchronous wheel also rotate. At the same time, the cylinder extends and retracts, which can drive the adjustment plate to move up and down, thereby driving the driven shaft and the synchronous shaft to adjust their positions up and down, so as to press the paperboard and drive the paperboard to move forward.

[0024] Furthermore, the paper feed base plate includes a connecting plate, an arc-shaped plate, and a base plate connected as one piece, with the connecting plate fixed to the extension end of the connecting column; a paper feed cavity is formed between the arc-shaped plate and the base plate.

[0025] The beneficial effect of adopting the above-mentioned further technical solution is to ensure the shape of the folded carton before it is fed into the sewing area. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0027] Figure 1 The attached figure is a schematic diagram of the overall structure of a sewing machine provided by the present invention;

[0028] Figure 2The attached figure is a structural schematic diagram of the main body of a sewing machine provided by the present invention;

[0029] Figure 3 The attached figure is a schematic diagram of the upper part of the machine head provided by the present invention;

[0030] Figure 4 The attached figure is a schematic diagram of the lower part of the machine head provided by the present invention;

[0031] Figure 5 The attached figure is a schematic diagram of the structure of the second paper feeding transmission mechanism provided by the present invention;

[0032] Figure 6 The attached figure is a structural schematic diagram of the paper feed base plate provided by the present invention. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] like Figure 1-6 As shown, this embodiment of the invention discloses a box-sewing machine, including a frame 1, a paper feed base plate 2, an upper part of the sewing head 3, a lower part of the sewing head 4, a first paper feeding transmission mechanism 5, and a second paper feeding transmission mechanism 6. The frame 1 includes a base 11 and a support frame 12, with the support frame 12 fixed to the top of the base 11; the paper feed base plate 2 is fixed to the support frame 12; the upper part of the sewing head 3 is fixed to the support frame 12; the lower part of the sewing head 4 is fixed to the extended end of the paper feed base plate 2, and the lower part of the sewing head 4 corresponds to the upper part of the sewing head 3 above it; the first paper feeding transmission mechanism 5 is installed at the extended end of the lower part of the sewing head 4; the second paper feeding transmission mechanism 6 is fixed to the upper part of the sewing head 3, and the second paper feeding transmission mechanism 6 corresponds to the first paper feeding transmission mechanism 5 below it. The folded cylindrical carton 7 of this invention enters through the paper feed base plate 2. The first paper feeding transmission mechanism 5 and the second paper feeding transmission mechanism 6 drive the carton 7 forward and also provide pressure. The upper part 3 and the lower part 4 of the machine head cooperate to sew the carton 7. The sealing process is simple. The carton 7 is sewn together with thread, which is low-cost, reliable, and environmentally friendly.

[0035] Specifically, the upper part 3 of the machine head includes a first servo motor 31, an eccentric shaft 32, a needle rod 33, and two needles 34. The first servo motor 31 is mounted on the support frame 12; the eccentric shaft 32 is fixedly connected to the first spindle 311 of the first servo motor 31, and the needle rod 33 is connected to the eccentric shaft 32 through a connecting rod 35; the two needles 34 are spaced apart at the bottom end of the needle rod 33. In this embodiment, the stitch distance between the two needles 34 is relatively large, which enables the sewn cardboard box 7 to have greater connection strength; the lower part 4 of the machine head includes a worktable 41, a second... The system includes a servo motor 42, a drive gear 43, a driven gear 44, a first shaft 45, a second shaft 46, and a bending needle 47. The worktable 41 is horizontally fixed to the extension end of the paper feed base plate 2. The second servo motor 42 is fixed to the bottom of the worktable 41. The drive gear 43 is mounted on the second spindle 421 of the second servo motor 42. The driven gear 44 is mounted on the first shaft 45, and the drive gear 43 meshes with the driven gear 44. The vertically arranged first shaft 45 and second shaft 46 are connected by bevel gear transmission. The bending needle 47 is mounted on the second shaft 46.

[0036] It is worth noting that the upper part 3 and lower part 4 of the sewing head of this invention are improvements on existing sewing machine heads, and the working principle of the sewing action is the same. Specifically, the upper part 3 of this invention has the same transmission mechanism structure as the existing sewing machine's drive mechanism for moving the needle rod up and down, and the lower part 4 of this invention has the same transmission mechanism structure as the existing sewing machine's drive mechanism for moving the curved needle. However, these are not the design focus of this invention and will not be elaborated upon here. The difference lies in the fact that the upper and lower parts of the existing sewing head are connected by a transmission mechanism, with the upper part transmitting power to the lower part. In contrast, this invention splits the sewing head into two completely independent parts: the upper part 3 and the lower part 4. The upper part 3 is driven by a first servo motor 31, and the lower part 4 is driven by a second servo motor 42, thus enabling its application in sewing box work and achieving high-speed, high-efficiency sewing box operations.

[0037] Specifically, the support frame 12 includes a column 121, a support column 122, and a connecting column 123. The column 121 is fixed to the top of the base 11; the support column 122 is horizontally fixed to the column 121; the connecting column 123 is fixed to the side of the support column 122; the first servo motor 31 is mounted on the column 121, and the first spindle 311 extends into the hollow support column 122; the paper feed base plate 2 is fixed to the extension end of the connecting column 123.

[0038] Specifically, the first paper feeding transmission mechanism 5 includes a rotating shaft 51, a motor, and a paper feeding roller 52. The rotating shaft 51 is installed at the extension end of the worktable 41; the output shaft of the motor is fixedly connected to the rotating shaft 51; and the paper feeding roller 52 is installed on the rotating shaft 51.

[0039] Specifically, the second paper feeding transmission mechanism 6 includes a geared motor 61, a ball screw 62, a guide rail 63, a connecting frame 64, a third servo motor 65, a drive wheel, a cylinder 66, an adjusting plate 67, a driven shaft 68, a driven wheel, a synchronous shaft 69, a synchronous pulley, and a belt. The geared motor 61 is fixed to the upper part 3 of the print head via a motor bracket 611; the screw of the ball screw 62 is connected to the output shaft of the geared motor 61; the guide rail 63 is vertically fixed to the upper part 3 of the print head; the connecting frame 64 is fitted onto the guide rail 63; the nut of the ball screw 62 is connected to the connecting... The frame 64 is fixedly connected; the third servo motor 65 is fixed on the frame 64; the drive wheel is mounted on the output shaft of the third servo motor 65; the cylinder body of the cylinder 66 is connected to the frame 64; one end of the adjusting plate 67 is connected to the telescopic rod of the cylinder 66; the driven shaft 68 is mounted between the middle of the frame 64 and the adjusting plate 67; the driven wheel is mounted on the driven shaft 68; the synchronous shaft 69 is mounted between the other end of the frame 64 and the adjusting plate 67; the synchronous wheel is mounted on the synchronous shaft 69; the drive wheel, the driven wheel, and the synchronous wheel are connected by belt drive.

[0040] In order to ensure the shape of the folded carton 7 before it is fed into the sewing area, the paper feeding base plate 2 includes a connecting plate 21, an arc plate 22 and a base plate 23 connected as one piece. The connecting plate 21 is fixed to the extension end of the connecting post 123; a paper feeding cavity is formed between the arc plate 22 and the base plate 23.

[0041] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0042] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A box-sewing machine, characterized in that, include: A frame, comprising a base and a support frame, the support frame being fixed to the top of the base; the support frame comprising a column, a support column, and a connecting column, the column being fixed to the top of the base; the support column being horizontally fixed to the column; and the connecting column being fixed to the side of the support column. A paper feed base plate is fixed on the support frame. The paper feed base plate includes a connecting plate, an arc-shaped plate, and a base plate connected as one piece. The connecting plate is fixed to the extension end of the connecting column. A paper feed cavity is formed between the arc-shaped plate and the base plate. The upper part of the machine head is fixed to the support frame; The lower part of the paper head is fixed to the extension end of the paper feed base plate, and the lower part of the paper head corresponds to the upper part of the paper head above it; A first paper feeding transmission mechanism is installed at the extension end of the lower part of the machine head; The second paper feeding transmission mechanism is fixed on the upper part of the machine head and corresponds to the first paper feeding transmission mechanism below it. The second paper feeding transmission mechanism includes a geared motor, a ball screw, a guide rail, a connecting frame, a third servo motor, a drive wheel, a cylinder, an adjusting plate, a driven shaft, a driven wheel, a synchronous shaft, a synchronous wheel, and a belt. The geared motor is fixed to the upper part of the print head via a motor bracket; the screw of the ball screw is connected to the output shaft of the geared motor; the guide rail is vertically fixed to the upper part of the print head; the connecting frame is fitted onto the guide rail; the nut of the ball screw is fixedly connected to the connecting frame; the third servo motor is fixed to the connecting frame; the drive wheel is mounted on the output shaft of the third servo motor; the cylinder body of the cylinder is connected to the connecting frame; one end of the adjusting plate is connected to the telescopic rod of the cylinder; the driven shaft is mounted between the connecting frame and the middle of the adjusting plate; the driven wheel is mounted on the driven shaft; the synchronous shaft is mounted between the connecting frame and the other end of the adjusting plate; the synchronous wheel is mounted on the synchronous shaft; the drive wheel, the driven wheel, and the synchronous wheel are connected by the belt drive. The upper part of the machine head includes a first servo motor, an eccentric shaft, a needle rod, and two needles. The first servo motor is mounted on the support frame. The eccentric shaft is fixedly connected to the first main shaft of the first servo motor. The needle rod is connected to the eccentric shaft through a connecting rod. The two needles are installed at intervals at the bottom end of the needle rod. The lower part of the machine head includes a worktable, a second servo motor, a drive gear, a driven gear, a first shaft, a second shaft, and a bending needle. The worktable is horizontally fixed to the extension end of the paper feed base plate. The second servo motor is fixed to the bottom of the worktable. The drive gear is mounted on the second spindle of the second servo motor. The driven gear is mounted on the first shaft, and the drive gear meshes with the driven gear. The first and second shafts, which are arranged vertically, are connected by a bevel gear drive; the bent needle is mounted on the second shaft.

2. A box-sewing machine according to claim 1, characterized in that, The first servo motor is mounted on the column, and the first spindle extends into the support column; the paper feed base plate is fixed to the extension end of the connecting column.

3. A box-sewing machine according to claim 1, characterized in that, The first paper feeding transmission mechanism includes a rotating shaft, a motor, and a paper feeding roller. The rotating shaft is installed at the extension end of the worktable; the output shaft of the motor is fixedly connected to the rotating shaft; and the paper feeding roller is installed on the rotating shaft.

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