Supporting device and bag opening machine

Abstract

The utility model discloses a supporting device and a bag opening machine, and relates to the technical field of bag opening machines. The device specifically comprises a support, an edge folding matching module and two supporting arms, the support is connected with the supporting arms, the two supporting arms are oppositely arranged, the two supporting arms are used for installing the edge folding matching module, and the supporting arms are of tubular structures. The supporting arm is arranged to install the edge folding matching module, the supporting arm is of a tubular structure, the strength of the tubular structure is higher, and therefore the position of the edge folding matching module is prevented from deviating, and the position precision of the edge folding matching module is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of bag opening machines, and specifically provides a supporting device and a bag opening machine. Background Art

[0002] The bag opening machine is used to prepare the bag mouth. The bag opening machine includes a folding device and a folding frame pressing device. The folding frame pressing device includes a supporting device and a folding matching module adapted to the folding device. The folding matching modules are usually arranged relatively to each other. The supporting device is used to support the folding matching module. The supporting device needs to move in mid-air between multiple workstations when working.

[0003] However, when the bag opener is moving in mid-air, the supporting device is offset downward due to factors such as the gravity of the folding matching module and the pressure from the pressing frame, resulting in a decrease in the accuracy of the bag opener, which needs to be solved urgently. Utility Model Content

[0004] The utility model provides a supporting device and a bag opening machine, which are used to solve the problem that the supporting device is offset downward due to the gravity of the folding matching module, the pressure from the pressing frame and other factors, resulting in the reduction of the accuracy of the bag opening machine.

[0005] The technical solution of the utility model is as follows:

[0006] A support device comprises a bracket, a folding matching module and two support arms, wherein the bracket is connected to the support arms, the two support arms are arranged opposite to each other, the two support arms are used to install the folding matching module, and the support arms are tubular structures.

[0007] In this solution, a support arm is provided to install the folding fitting module. The support arm adopts a tubular structure, which has a higher strength, thereby preventing the position of the folding fitting module from being offset and ensuring the position accuracy of the folding fitting module.

[0008] Preferably, the support arm is a rectangular tube, the tubular structure is provided with a guide rail, the guide rail is arranged along the length direction of the tubular structure, and the second lifting mechanism is slidably connected to the guide rail.

[0009] In this solution, the rectangular tube-shaped support arm has flat side walls, which makes it easier to install the lower pressure plate, and the guide rail can make the position of the second lifting mechanism adjustable, thereby making the spacing of the lower pressure plate adjustable, so that the lower pressure plate can be suitable for processing bag openings of different widths.

[0010] In this solution, the second lifting mechanisms are respectively connected to the tight side and the loose side of the belt. Therefore, when the belt rotates, the two second lifting mechanisms can move in opposite directions, thereby achieving the purpose of adjusting the spacing between the second lifting mechanisms and the spacing between the lower pressure plates to suit the processing of bag openings of different sizes.

[0011] Preferably, a partition is provided in the tubular structure, and the partition divides the tubular structure into two installation channels in a horizontal direction.

[0012] In this solution, the provision of the partition can further improve the strength of the tubular structure, and prevent the tubular structure from deforming and causing the lower pressing plate to shift in position. The provision of the partition can also install different transmission structures, and the partition can ensure that the transmission structures do not interfere with each other.

[0013] Preferably, the tubular structure is provided with a mounting hole, and the mounting hole is arranged on the top surface or the side surface of the tubular structure.

[0014] In this solution, a mounting hole is provided to facilitate installation of other structures inside the tubular structure after the tubular structure is installed, such as installation of a motor or maintenance belt, etc., thereby reducing the difficulty of installation.

[0015] Preferably, a weight-reducing hole is provided at the bottom of the tubular structure.

[0016] In this solution, the weight-reducing holes are provided to reduce the weight and avoid deformation of the tubular structure due to excessive weight.

[0017] Preferably, an opening is provided on the side of the guide rail, the guide rail is arranged on the partition, and the position of the guide rail corresponds to the position of the opening.

[0018] In this solution, the opening is provided to make it easier to connect the folding matching module with the guide rail and avoid interference with the movement of the folding matching module. The guide rail is provided in the partition, which can also ensure that the guide rail remains stable after installation.

[0019] Preferably, the folding matching module includes a second lifting mechanism and a lower pressing plate, the lower pressing plate is connected to the second lifting mechanism, the second lifting mechanism is used to drive the lower pressing plate to move up and down, and the second lifting mechanism is slidably connected to the guide rail.

[0020] In this solution, the lower pressing plate can be used to press the folded edge from the bottom, and the second lifting mechanism can be used to adjust the position of the lower pressing plate. The second lifting mechanism is slidably connected to the guide rail, and the position of the second lifting mechanism and the lower pressing plate can be adjusted through the guide rail to adapt to the processing of bag openings of different sizes.

[0021] The supporting device also includes a transmission shaft, which is rotatably connected to the tubular structure, and two ends of the transmission shaft are respectively connected to belt drives in the two tubular structures.

[0022] In this solution, a transmission shaft is provided to synchronize the belts in the two tubular structures, so that the forces on both sides of the lower pressing plate are the same, thereby ensuring the position accuracy of the lower pressing plate.

[0023] A bag opening machine comprises the supporting device.

[0024] The bag opening machine adopts the above-mentioned supporting device to ensure that the lower pressing plate will not be displaced due to deformation of the supporting structure, thereby ensuring the pressing effect on the bag opening, and the spacing of the lower pressing plate can be adjusted without disassembly.

[0025] Beneficial effects of the utility model:

[0026] The utility model adopts a tubular structure as a support arm, and the support arm of the tubular structure can provide more stable support for the folding matching module, thereby preventing the position of the folding matching module from being offset and ensuring the position accuracy of the folding matching module. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solution of the present utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the structure of the utility model;

[0029] Figure 2 It is a top view of the utility model;

[0030] Figure 3 is a schematic diagram of the structure of the support arm;

[0031] Figure 4 is the front view of the support arm;

[0032] Figure 5 It is a partial cross-sectional view of the pressing frame, the second lifting mechanism and the lower pressing plate.

[0033] In the above drawings, the corresponding reference numerals are as follows:

[0034] 1. Bracket; 2. Pressing frame; 3. Lower pressing plate; 4. Support arm; 5. First lifting mechanism; 6. Second lifting mechanism; 7. Partition; 8. Weight reduction hole; 9. Installation hole. DETAILED DESCRIPTION

[0035] In conjunction with the accompanying drawings, the technical solution of the present utility model is clearly and completely explained through the specific implementation methods of the embodiments of the present utility model.

[0036] Embodiment 1.

[0037] like Figure 1 and Figure 2As shown, the first embodiment of the present invention provides a support device, including a bracket 1, a press frame 2, a lower pressing plate 3 and two support arms 4. The bracket 1 is provided with a first lifting mechanism 5, and the press frame 2 is connected to the first lifting mechanism 5. The first lifting mechanism 5 is used to adjust the height position of the press frame 2, thereby adjusting whether the press frame 2 presses the cloth. The support arm 4 is provided with a second lifting mechanism 6, and a lower pressing plate 3 is provided between the second lifting mechanisms 6 on the two support arms 4. The second lifting mechanism 6 is used to adjust the height of the lower pressing plate 3. The lower pressing plate 3 is arranged on the lower side of the press frame 2. When the second lifting mechanism 6 drives the lower pressing plate 3 to move upward, the lower pressing plate 3 can press the folded edge against the bottom surface of the press frame 2 from the lower side to achieve the compression of the folded edge. The support arm 4 adopts a tubular structure, which is used to increase the strength of the support arm 4, thereby preventing the deformation of the support arm 4 from causing the position displacement of the lower pressing plate 3.

[0038] The lower pressing plate 3 and the second lifting mechanism 6 form a folding matching module.

[0039] The tubular structure can be a rectangular tube or a circular tube. Preferably, a rectangular tube is used, which has a flat side surface and is convenient for connection with other structures.

[0040] like Figure 4 As shown, a partition 7 is arranged inside the rectangular tube, and the partition 7 divides the rectangular tube into two installation channels in the horizontal direction, and other structures can be installed in the two installation channels respectively. The partition 7 is parallel to the length direction of the rectangular tube.

[0041] like Figure 3 As shown, a weight-reducing hole 8 is provided at the bottom of the rectangular tube, which can reduce the weight of the rectangular tube itself.

[0042] In order to facilitate installation of other structures after the support arm 4 is installed, or to maintain the installed structure, a mounting hole 9 is provided on the top surface or side surface of the tubular structure.

[0043] For example, a belt is arranged in one installation channel of the support arm 4, and two second lifting mechanisms 6 are arranged on one support arm 4, respectively, and the two second lifting mechanisms 6 are connected to the tight side and the loose side of the belt respectively. The tight side and the loose side of the belt are parallel, and the belt rotates to make the two second lifting mechanisms 6 move in opposite directions. When the spacing between the two second lifting mechanisms 6 is changed, the spacing between the two lower pressing plates 3 connected to the support arm 4 can be changed, so that the lower pressing plates 3 can press the bag openings of different widths, so as to be suitable for the production of bag openings of different sizes.

[0044] The support arm 4 is provided with a guide rail, and the second lifting mechanism 6 is provided with a slider adapted to the guide rail. The slider and the guide rail are slidably matched, so that the second lifting mechanism 6 and the guide rail are slidably connected. The guide rail is arranged horizontally to constrain the sliding direction of the second lifting mechanism 6, thereby constraining the sliding direction of the lower pressing plate 3. The guide rail on the support arm 4 is fixed to the partition 7 by fasteners, and an opening can be opened on the side of the support arm 4, and the position of the opening corresponds to the position of the guide rail, so that the guide rail can be connected to the slider from the side of the support arm 4.

[0045] The support arm 4 is provided with a motor for driving the belt to rotate, and the motor is connected to the belt transmission. For example, the motor output shaft is directly connected to the pulley on the belt. Alternatively, the motor is indirectly connected to the pulley on the belt through a mechanism such as a speed reducer.

[0046] The two support arms 4 can be provided with motors separately, or the two support arms 4 can be driven by one motor. For example, a transmission shaft is provided between the two support arms 4, and the transmission shaft is respectively connected to two belts for transmitting the rotation of one belt to the other belt. The belts are synchronous belts, which can ensure that the two belts rotate at the same speed, and at the same time ensure that the speed of the tight side and the loose side of the belt is the same. In other words, the use of a synchronous belt can make the two lower pressing plates 3 move in opposite directions at the same speed.

[0047] The pressing frame 2 is used to press the cloth from the upper side. The pressing frame 2 includes a fixed frame and an upper pressing plate, the upper pressing plate is connected to the fixed frame by fasteners such as screws, and the fixed frame is connected to the first lifting mechanism 5. The screw connection makes the upper pressing plate and the fixed frame detachable. When processing bag openings of different sizes, the upper pressing plate can be replaced to change the pressing range of the pressing frame 2 to be suitable for the production of bag openings of different sizes.

[0048] The first lifting mechanism 5 may include a cylinder, a guide rail and a guide slider, wherein the guide rail is connected to the bracket 1, the guide slider is connected to the pressing frame 2, and the guide slider is slidably connected to the guide rail. The two ends of the cylinder are respectively connected to the pressing frame 2 and the bracket 1, and are used to drive the pressing frame 2 to move up and down.

[0049] The cylinder of the first lifting mechanism 5 can also be replaced by an electric cylinder. The guide rail and the guide slider can also be replaced by a guide rod and a guide hole, for example, a guide rod is provided on the bracket 1, and a guide hole is provided on the pressing frame 2, so that the guide hole is slidably connected to the guide rod.

[0050] like Figure 5As shown, the second lifting mechanism 6 may include a cylinder, a guide rail and a guide slider, the guide rail is connected to the bracket 1, the guide slider is connected to the lower pressure plate 3, and the guide slider is slidably connected to the guide rail. The two ends of the cylinder are respectively connected to the lower pressure plate 3 and the support arm 4, which are used to drive the lower pressure plate 3 to move up and down. Similarly, the cylinder in the second lifting mechanism 6 can also be replaced by an electric cylinder, and the guide rail and guide slider in the second lifting mechanism 6 can also be replaced by a guide rod and a guide hole. When using a guide rod and a guide hole, it is necessary to set a mounting block that can open a guide hole, the guide hole is set on the mounting block, and the electric cylinder is fixedly connected to the mounting block.

[0051] The second lifting mechanism 6 can be used to fix the mounting block to the belt, and the connection method can be screw-fastened. For example, one side of the mounting block is extended to the belt position, and then a fastener such as a screw is used to penetrate the belt and the mounting block, and the belt and the mounting block are fixed by a nut.

[0052] The motor may be a servo motor, which is convenient for accurately controlling the rotation amount of the first gear, thereby accurately controlling the moving distance of the two lower pressing plates 3.

[0053] The servo motor can be equipped with a controller, and the servo motor can be controlled by the controller. It is only necessary to input the adjustment distance of the lower pressing plate 3 into the controller, and the controller can control the servo motor to rotate so that the lower pressing plate 3 moves the specified distance.

[0054] The controller can be a PLC, a single chip microcomputer or a PC.

[0055] Embodiment 2.

[0056] The second embodiment provides a bag opening machine, including the supporting device described in the first embodiment.

[0057] The bag opening machine can also be provided with a cutting head and a sewing head, wherein the cutting head is used to cut the cloth pressed by the two pressing frames and cut out an opening and a folded edge on the cloth, and the sewing head is used to sew the folded edge after folding, sew the folded edge with the cloth to form a smooth bag opening, and can also be used to sew structures such as zippers and bag cloth on the bag opening.

Claims

1. A supporting device, characterized in that: It comprises a bracket (1), a folding matching module and two support arms (4), wherein the bracket (1) is connected to the support arms (4), the two support arms (4) are arranged opposite to each other, the two support arms (4) are used to install the folding matching module, and the support arms (4) are tubular structures.

2. A supporting device according to claim 1, characterized in that: The support arm (4) is a rectangular tube, the tubular structure is provided with a guide rail, the guide rail is arranged along the length direction of the tubular structure, and the folding matching module is slidably connected to the guide rail.

3. A supporting device according to claim 2, characterized in that: A partition (7) is arranged inside the tubular structure, and the partition (7) divides the tubular structure into two installation channels in the horizontal direction.

4. A supporting device according to claim 1, characterized in that: The tubular structure is provided with a mounting hole (9), and the mounting hole (9) is arranged on the top surface or the side surface of the tubular structure.

5. A supporting device according to claim 1, characterized in that: A weight-reducing hole (8) is provided at the bottom of the tubular structure.

6. A supporting device according to claim 3, characterized in that: An opening is arranged on the side of the guide rail, the guide rail is arranged on the partition (7), and the position of the guide rail corresponds to the position of the opening.

7. A supporting device according to claim 2, characterized in that: The folding matching module comprises a second lifting mechanism (6) and a lower pressing plate (3); the lower pressing plate (3) is connected to the second lifting mechanism (6); the second lifting mechanism (6) is used to drive the lower pressing plate (3) to move up and down; and the second lifting mechanism (6) is slidably connected to the guide rail.

8. A supporting device according to claim 7, characterized in that: The tubular structure is provided with a motor, a belt is provided inside the tubular structure, two second lifting mechanisms (6) on the support arm (4) are respectively connected to the tight side and the loose side of the belt, the tight side and the loose side of the belt are parallel, and the motor is connected to the belt in a transmission manner.

9. A supporting device according to claim 8, characterized in that: It also includes a transmission shaft, which is rotatably connected to the tubular structure, and two ends of the transmission shaft are respectively connected to the belts in the two tubular structures.

10. A bag opening machine, characterized in that: The invention comprises the supporting device according to any one of claims 1 to 9.

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