A bag loading device

Abstract

The present invention discloses a bag loading device, including a main driving mechanism, a fixed shaft, a bearing seat, a rotating arm bracket, a clamping mechanism and a knife inserting mechanism. One end of the rotating arm bracket is fixedly connected to the fixed shaft, and the other end of the rotating arm bracket is connected to the clamping mechanism. The clamping mechanism includes two groups of clamping assemblies arranged symmetrically on the left and right. The knife inserting mechanism is located between the two groups of clamping assemblies. The end of the main driving mechanism is connected to the middle of the rotating arm bracket through a fixed rod. The knife inserting mechanism includes a knife inserting driving member and a knife inserting assembly. The knife inserting driving member is connected to the knife inserting assembly to drive the knife inserting assembly to insert or withdraw the bag opening. Under the drive of the main driving mechanism, the rotating arm bracket swings up and down around the fixed shaft, and the clamping mechanism, the knife inserting mechanism and the rotating arm bracket swing up and down in coordination. The structural design of the present invention is reasonable, convenient for debugging, and small in space. The main driving mechanism drives the rotating arm bracket to swing up and down around the fixed shaft, and the clamping assembly and the knife inserting assembly swing together with the rotating arm bracket. The knife inserting assembly is inserted into the bag opening, which is convenient for material delivery.

Description

Technical Field

[0001] The present invention relates to the technical field of material packaging equipment, and more specifically to a bagging device. Background Art

[0002] Before a packaging bag (such as a woven bag) is loaded with materials, the bag mouth needs to be clamped and opened. In the process of clamping and opening the bag, the bag loading device in the prior art has some shortcomings: first, the clamped packaging bag needs to be flipped from a horizontal position to the opening facing upward. When flipping, due to the unreasonable design of the clamp and the insert, it is very troublesome to achieve synchronous flipping and debugging; second, the driving mechanism for driving the clamp to flip is relatively complicated, which is very inconvenient to install and debug, and also takes up a lot of space; third, after the bag mouth is opened, the bag mouth is still relatively loose, which is not conducive to the input of materials; fourth, the position of the clamp is fixed, and one device cannot be used for packaging bags of different specifications. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a bag loading device which is simple to install and debug and has a wide range of applications. The device can synchronously drive the clamping part and the inserting knife to swing synchronously, and the bag mouth is stretched tight after being opened, which is convenient for material delivery.

[0004] According to one aspect of the present invention, a bag loading device is provided, which includes a main driving mechanism, a fixed shaft, a bearing seat, a rotating arm bracket, a clamping mechanism and a knife inserting mechanism. Both ends of the fixed shaft can be rotatably installed on the bearing seat. One end of the rotating arm bracket is fixedly connected to the fixed shaft, and the other end of the rotating arm bracket is connected to the clamping mechanism. The clamping mechanism includes two groups of clamping assemblies arranged symmetrically on the left and right. The knife inserting mechanism is located between the two groups of clamping assemblies. The end of the main driving mechanism is connected to the middle part of the rotating arm bracket through a fixed rod. The knife inserting mechanism includes a knife inserting driving member and a knife inserting assembly. The knife inserting driving member is connected to the knife inserting assembly to drive the knife inserting assembly to insert or withdraw the bag mouth. Under the drive of the main driving mechanism, the rotating arm bracket swings up and down around the fixed shaft, and the clamping mechanism, the knife inserting mechanism and the rotating arm bracket swing up and down in coordination. As a result, the main driving mechanism drives the fixed rod to drive the tumbler bracket to swing up and down around the fixed axis, the clamping assembly and the inserting knife assembly swing together with the tumbler bracket, the clamping assembly rotates from the bottom of the fixed axis to the side of the fixed axis to achieve 90-degree up and down swing, when the bag opening is vertically upward, the inserting knife driving member drives the inserting knife assembly to insert into the bag opening, which is convenient for material delivery, and the inserting knife assembly and the clamping assembly swing synchronously with the tumbler bracket, which is convenient for debugging.

[0005] In some embodiments, two groups of rotating arm brackets are provided, and the two ends of the fixed rod are respectively connected to the two groups of rotating arm brackets, and the clamping mechanism also includes a crossbar and two groups of fixed brackets. The rotating arm bracket is connected to the crossbar through a fixed seat, and the two groups of fixed brackets are respectively connected to the clamping assembly, and the fixed bracket is located below the crossbar. The clamping assembly includes a clamping cylinder and a clamping part. The clamping parts of the two groups of clamping assemblies are relatively arranged inward, and the clamping parts after closing are arranged parallel to the crossbar. Therefore, the rotating arm bracket is provided with two groups, which can smoothly drive the inserting knife assembly and the clamping assembly to swing, and the clamping part is parallel to the crossbar, which is very convenient during installation and convenient for observing and debugging the up and down swing angles.

[0006] In some embodiments, the crossbar adopts a guide rail, the guide rail is connected with a slider, the fixed bracket is connected with the slider, and the fixed seat is provided with an expansion cylinder, which can drive the slider to move along the crossbar to fine-tune the distance between the two sets of clamping parts. Therefore, after the inserting knife assembly is inserted into the bag opening, the expansion cylinder is extended and retracted, and the two sets of clamping parts are fine-tuned to move outward to both sides through the cooperation of the slider and the guide rail. Under the cooperation of the clamping part and the inserting knife assembly, the bag opening of the packaging bag is tightened, so that the bag opening forms a regular opening without looseness, which is convenient for the input of materials.

[0007] In some embodiments, the side wall of the slider is connected to a side clamping plate, the expansion cylinder is connected to a scale plate, the scale plate is evenly arranged with a number of positioning grooves, the side clamping plate is connected to a positioning piece, and the positioning piece can be snapped into the positioning groove. Therefore, for packaging bags of different sizes, according to the size of the bag opening, the position of the side clamping plate relative to the scale plate is adjusted, and the positioning piece is snapped into the positioning groove, which is equivalent to adjusting the distance between the two groups of clamping parts. The expansion cylinder telescopically drives the scale plate to achieve fine adjustment of the distance between the two groups of clamping parts, so that the bag opening is tightened.

[0008] In some embodiments, the scale plate is provided with a scale position on its surface, and the side clamping plate is provided with a waist-shaped positioning hole for installing the positioning piece. Therefore, the distance between the clamping parts can be observed from the scale position, and if the position of the side clamping plate relative to the scale plate is to be adjusted, the positioning piece is pulled upward from the positioning groove, and the tail end of the positioning piece moves along the waist-shaped positioning hole, and when it is adjusted to a suitable position, the positioning piece is clamped in the positioning groove.

[0009] In some embodiments, the inserting knife driving member includes an inserting knife cylinder, a movable arm and a support rod, the support rod is connected to a fixed seat through two sets of mounting seats, the inserting knife cylinder is connected to a rotating arm bracket through a base, the piston rod of the inserting knife cylinder is connected to the support rod through a movable arm, and the inserting knife assembly is provided with two sets and connected to both ends of the support rod, and the piston rod of the inserting knife cylinder is telescopically driven to drive the support rod to rotate so as to drive the inserting knife assembly to be inserted into or withdrawn from the bag opening. Thus, the piston rod of the inserting knife cylinder is telescopically driven to drive the movable arm to drive the support rod to rotate, and the inserting knife assembly installed on the support rod rotates to achieve insertion or withdrawal from the bag opening.

[0010] In some embodiments, the inserting blade assembly includes an inserting blade and a blade holder, one end of the blade holder is mounted on the support rod through a clamp, and the other end of the blade holder is connected to the inserting blade. Thus, inserting blades of different specifications can be replaced according to the size of the bag opening to be opened, and the clamp and the support rod are easy to install.

[0011] In some embodiments, the knife inserting cylinder is located in the middle position between the rotating arm brackets, and the knife inserting cylinder is located outside the cross bar and inside the fixed rod. Therefore, the knife inserting cylinder is reasonably located and occupies a relatively small space.

[0012] In some embodiments, the main driving mechanism includes a motor, a driving arm and a connecting rod, one end of the connecting rod is connected to the fixed rod, the other end of the connecting rod is connected to the driving arm, the driving arm is connected to the output shaft of the motor, and the fixed shaft adopts a square rod structure. Thus, the motor drives the driving arm to rotate around the motor output shaft, and the driving arm drives the connecting rod when rotating, and as the connecting rod moves up and down and deviates forward and backward, the rotating arm bracket swings up and down 90 degrees around the fixed shaft.

[0013] Compared with the prior art, the present invention has the following beneficial effects: the components of the bag loading device provided by the present invention are reasonably designed, occupy a small space, and are convenient to install and debug. When the motor is started, the driving arm rotates, and the connecting rod and the fixed rod drive the rotating arm bracket to swing up and down around the fixed axis, so that the clamping part and the inserting knife rotate from the bottom of the fixed axis to the side of the fixed axis to achieve 90-degree up and down swing. When the bag opening is vertically upward, the piston rod of the inserting knife cylinder extends out to drive the inserting knife to insert into the bag opening, and the expanding cylinder extends out to drive the clamping part to move outward along the cross bar to both sides. Under the joint cooperation of the clamping part and the inserting knife, the bag opening of the packaging bag is tightened, so that the bag opening forms a regular opening without looseness, which is convenient for the input of materials; the position of the side clamping plate relative to the scale plate is adjusted according to the packaging bags of different specifications, and the distance between the two groups of clamping parts is changed. At the same time, the inserting knife can be selected according to the size of the bag opening, so that the bag loading device is suitable for packaging bags of various specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of an embodiment of a bag loading device of the present invention when placing and taking out bags;

[0015] Figure 2 yes Figure 1 A structural diagram from another perspective;

[0016] Figure 3 yes Figure 1 The main view of

[0017] Figure 4 yes Figure 3 Side view of

[0018] Figure 5 It is a schematic diagram of a bag loading device of the present invention after the rotating arm bracket rotates 90 degrees and the bag loading operation is completed;

[0019] Figure 6 yes Figure 5 A structural diagram from another perspective;

[0020] Figure 7 yes Figure 5 Side view of. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with specific implementation modes.

[0022] like Figure 1 As shown, a bag loading device according to one embodiment of the present invention includes a main driving mechanism 1, a fixed shaft 2, a bearing seat 21, a rotating arm bracket 3, a clamping mechanism 4 and a knife inserting mechanism 5.

[0023] like Figure 1 , 2 As shown in Figure 5, the fixed shaft 2 adopts a square rod structure, and the two ends of the fixed shaft 2 can be rotatably installed on the bearing seat 21. The end of the main driving mechanism 1 is connected to the middle of the swing arm bracket 3 through the fixed rod 10. There are two groups of swing arm brackets 3, and the fixed rod 10 is connected between the middle parts of the two groups of swing arm brackets 3. One end of the swing arm bracket 3 is fixedly connected to the fixed shaft 2, and the other end of the swing arm bracket 3 is connected to the clamping mechanism 4. The main driving mechanism 1 includes a motor 11, a driving arm 12 and a connecting rod 13. One end of the connecting rod 13 is connected to the fixed rod 10, and the other end of the connecting rod 13 is connected to the driving arm 12. The driving arm 12 is connected to the output shaft of the motor 11. The motor 11 drives the driving arm 12 to rotate around the output shaft of the motor 11. When the driving arm 12 rotates, it drives the connecting rod 13. As the connecting rod 13 moves up and down and deviates forward and backward, the swing arm bracket 3 swings up and down 90 degrees around the fixed shaft 2.

[0024] The clamping mechanism 4 includes two groups of clamping assemblies 40 symmetrically arranged on the left and right. The inserting knife mechanism 5 is located between the two groups of clamping assemblies 40. The inserting knife mechanism 5 includes an inserting knife driving member 51 and an inserting knife assembly 52. ​​The inserting knife driving member 51 is connected to the inserting knife assembly 52 to drive the inserting knife assembly 52 to insert or withdraw from the bag opening. Under the drive of the main driving mechanism 1, the swing arm bracket 3 swings up and down around the fixed axis 2, and the clamping mechanism 4, the inserting knife mechanism 5 and the swing arm bracket 3 swing up and down in coordination. The main driving mechanism 1 drives the fixed rod 10 to drive the swing arm bracket 3 to swing up and down around the fixed axis 2, and the clamping assembly 40 and the inserting knife assembly 52 swing together with the swing arm bracket 3. The clamping assembly 40 rotates from the bottom of the fixed axis 2 to the side of the fixed axis 2 to achieve 90 degrees of up and down swing. When the bag opening is vertically upward, the inserting knife driving member 51 drives the inserting knife assembly 52 to insert into the bag opening, which is convenient for material delivery. The inserting knife assembly 52 and the clamping assembly 40 swing synchronously with the swing arm bracket 3, which is convenient for debugging.

[0025] like Figure 2 and 3As shown, the clamping mechanism 4 also includes a crossbar 41 and two groups of fixed brackets 42. The lower part of the rotating arm bracket 3 is connected to the fixed seat 6, and the crossbar 41 is fixed to the lower part of the fixed seat 6 by bolts. The two groups of fixed brackets 42 are respectively connected to the clamping assembly 40, and the fixed bracket 42 is located below the crossbar 41. The clamping assembly 40 includes a clamping cylinder 401 and a clamping part 402. The clamping parts 402 of the two groups of clamping assemblies 40 are relatively arranged inwardly, and the clamping parts 402 after closing are arranged parallel to the crossbar 41. The clamping part 402 includes a fixed clamping catch 4021 and a movable clamping catch 4022. The movable clamping catch 4022 is located below the fixed clamping catch 4021, and the movable clamping catch 4022 can be rotated outward to open and close. The rotating arm bracket 3 is provided with two groups, which can smoothly drive the inserting knife assembly 52 and the clamping assembly 40 to swing. The clamping part 402 is parallel to the crossbar 41, which is very convenient when installing and convenient for observing and debugging the up and down swinging angles.

[0026] like Figure 2 and 5 As shown, the crossbar 41 adopts a guide rail, and sliders 411 are connected to both sides of the guide rail, and the fixed bracket 42 is connected to the bottom of the slider 411. The expansion cylinder 7 is fixedly installed on the fixed seat 6, and the expansion cylinder 7 can drive the slider 411 to move along the crossbar 41. Specifically, the side wall of the slider 411 is connected to the side clamping plate 71, and the piston rod of the expansion cylinder 7 is connected to the scale plate 72. The scale plate 72 is evenly arranged with a number of positioning grooves 721. The side clamping plate 71 is connected to a positioning piece 711, and the positioning piece 711 can be clamped in the positioning groove 721. After the inserting knife assembly 52 is inserted into the bag opening, the piston rod of the expansion cylinder 7 extends to drive the scale plate 72, and the slider 411 slides slightly outward along the guide rail, and the two groups of clamping parts 402 are fine-tuned to move outward to both sides. Under the cooperation of the clamping part 402 and the inserting knife assembly 52, the bag opening of the packaging bag is tightened, so that the bag opening forms a regular opening without loosening, which is convenient for the input of materials. The sizes of packaging bags are different. According to the size of the bag opening, the position of the side clamping plate 71 relative to the scale plate 72 is adjusted, and the positioning member 711 is clamped in the positioning groove 721, which is equivalent to adjusting the distance between the two sets of clamping parts 402.

[0027] like Figure 3 As shown, the scale plate 72 is provided with a scale position 722 on its surface, and the side clamping plate 71 is provided with a waist-shaped positioning hole 712 for installing the positioning member 711. The distance between the clamping parts 402 can be observed from the scale position 722. If the position of the side clamping plate 71 relative to the scale plate 72 is to be adjusted, the positioning member 711 is pulled upward from the positioning groove 721, and the tail end of the positioning member 711 moves along the waist-shaped positioning hole 712. When it is adjusted to a suitable position, the positioning member 711 is clamped in the positioning groove 721.

[0028] like Figure 3 and 6As shown, the knife inserting drive 51 includes a knife inserting cylinder 511, a movable arm 512 and a support rod 513. The support rod 513 is connected to the fixed seat 6 through two groups of mounting seats 514, the knife inserting cylinder 511 is connected to the rotating arm bracket 3 through a base 515, and the piston rod of the knife inserting cylinder 511 is connected to the support rod 513 through the movable arm 512. The knife inserting assembly 52 is provided with two groups and connected to both ends of the support rod 513. The knife inserting cylinder 511 is located in the middle position between the rotating arm brackets 3, and the knife inserting cylinder 511 is located on the outside of the cross bar 41 and the inside of the fixed rod 10. The knife inserting cylinder 511 is reasonably positioned and occupies a relatively small space. The piston rod of the knife inserting cylinder 511 telescopically drives the movable arm 512 to drive the support rod 513 to rotate, and the knife inserting assembly 52 installed on the support rod 513 rotates to achieve insertion or withdrawal from the bag mouth.

[0029] like Figure 5 As shown, the inserting knife assembly 52 includes an inserting knife 521 and a knife holder 522. One end of the knife holder 522 is mounted on the support rod 513 through a hoop, and the other end of the knife holder 522 is connected to the inserting knife 521. The inserting knives 521 of different specifications can be replaced according to the size of the bag opening to be opened, and the installation of the hoop and the support rod 513 is convenient.

[0030] like Figure 1 and 4 As shown, the motor 11 is started to rotate the driving arm 12, and the connecting rod 13 and the fixing rod 10 drive the rotating arm bracket 3 to swing around the fixing shaft 2, so that the clamping portion 402 and the inserting knife 521 are rotated from the bottom of the fixing shaft 2 to the side of the fixing shaft 2 (as shown in FIG. Figure 5 and 7 As shown in the figure, the upward flipping and swinging are realized; when the bag mouth is vertically upward, the piston rod of the knife inserting cylinder 511 extends out, and drives the knife inserting 521 to insert into the bag mouth through the movable arm 512 and the support rod 513; the expansion cylinder 7 extends out to drive the scale plate 72 to drive the clamping part 402 to move outward along the cross bar 41 on both sides, and under the cooperation of the clamping part 402 and the knife inserting 521, the bag mouth of the packaging bag is tightened, so that the bag mouth forms a regular opening without loosening, which is convenient for the input of materials.

[0031] The components of the bag loading device provided by the present invention are reasonably designed, occupy a small space, and are easy to install and debug. According to the packaging bags of different specifications, the position of the side clamping plate 71 relative to the scale plate 72 is adjusted to change the distance between the two sets of clamping parts 402. At the same time, the inserting knife 521 can be selected according to the size of the bag opening, so that the bag loading device is suitable for packaging bags of various specifications.

[0032] The above are only some embodiments of the present invention. It should be pointed out that for ordinary technicians in this field, other modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A bagging device, characterized in that: The invention comprises a main driving mechanism (1), a fixed shaft (2), a bearing seat (21), a rotating arm bracket (3), a clamping mechanism (4) and a knife inserting mechanism (5), wherein both ends of the fixed shaft (2) are rotatably mounted on the bearing seat (21), one end of the rotating arm bracket (3) is fixedly connected to the fixed shaft (2), and the other end of the rotating arm bracket (3) is connected to the clamping mechanism (4), the clamping mechanism (4) comprises two groups of clamping assemblies (40) arranged symmetrically on the left and right, and the knife inserting mechanism (5) is located between the two groups of clamping assemblies (40), the main driving mechanism (1) comprises a motor (11), a driving arm (12) and a connecting rod (13), and the One end of the connecting rod (13) is connected to the middle part of the rotating arm bracket (3) through the fixed rod (10), and the other end of the connecting rod (13) is connected to the driving arm (12), and the driving arm (12) is connected to the output shaft of the motor (11); the knife inserting mechanism (5) comprises a knife inserting driving member (51) and a knife inserting assembly (52); the knife inserting driving member (51) is connected to the knife inserting assembly (52) to drive the knife inserting assembly (52) to insert or withdraw the knife inserting assembly (52) from the bag opening; under the drive of the main driving mechanism (1), the rotating arm bracket (3) swings up and down around the fixed axis (2), and the clamping mechanism (4), the knife inserting mechanism (5) and the rotating arm bracket (3) swing up and down in coordination; The swing arm bracket (3) is provided with two groups, and the two ends of the fixed rod (10) are respectively connected to the two groups of swing arm brackets (3). The clamping mechanism (4) further comprises a cross bar (41) and two groups of fixed brackets (42). The swing arm bracket (3) is connected to the cross bar (41) via a fixed seat (6). The two groups of fixed brackets (42) are respectively connected to a clamping assembly (40). The fixed bracket (42) is located below the cross bar (41). The clamping assembly (40) comprises a clamping cylinder (401) and a clamping portion (402). The clamping portions of the two groups of clamping assemblies (40) are arranged relative to each other and face inwards. After being closed, the clamping portion (402) is arranged parallel to the cross bar (41). The crossbar (41) adopts a guide rail, the guide rail is connected to a slider (411), the fixed bracket (42) is connected to the slider (411), and the fixed seat (6) is provided with an expansion cylinder (7), and the expansion cylinder (7) can drive the slider (411) to move along the crossbar (41) to fine-tune the distance between the two groups of clamping parts (402); The side wall of the slider (411) is connected to a side clamping plate (71), the flaring cylinder (7) is connected to a scale plate (72), a plurality of positioning grooves (721) are evenly arranged on the scale plate (72), the side clamping plate (71) is connected to a positioning piece (711), and the positioning piece (711) can be snap-fitted into the positioning groove (721).

2. The bag loading device according to claim 1, characterized in that: The surface of the scale plate (72) is provided with scale marks (722), and the side clamping plate (71) is provided with a waist-shaped positioning hole (712) for mounting a positioning member (711).

3. The bag loading device according to claim 1 or 2, characterized in that: The knife inserting drive member (51) comprises a knife inserting cylinder (511), a movable arm (512) and a support rod (513); the support rod (513) is connected to a fixed seat (6) via two groups of mounting seats (514); the knife inserting cylinder (511) is connected to a rotating arm bracket (3) via a base (515); a piston rod of the knife inserting cylinder (511) is connected to the support rod (513) via the movable arm (512); the knife inserting assembly (52) is provided with two groups and connected to both ends of the support rod (513); the piston rod of the knife inserting cylinder (511) is telescopic to drive the support rod (513) to rotate so as to drive the knife inserting assembly (52) to be inserted into or withdrawn from the bag opening.

4. The bag loading device according to claim 3, characterized in that: The inserting blade assembly (52) comprises an inserting blade (521) and a blade holder (522); one end of the blade holder (522) is mounted on the support rod (513) via a hoop member (53); and the other end of the blade holder (522) is connected to the inserting blade (521).

5. The bag loading device according to claim 4, characterized in that: The knife inserting cylinder (511) is located at a middle position between the rotating arm brackets (3), and the knife inserting cylinder (511) is located on the outside of the cross bar (41) and on the inside of the fixing rod (10).

6. The bag loading device according to claim 1, characterized in that: The fixed shaft (2) adopts a square rod structure.

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