Improved turning type supporting arm structure of box packaging machine

Abstract

An improved turning type supporting arm structure of a box packaging machine comprises a long-strip-shaped load main arm, a first supporting arm, a second supporting arm, a third supporting arm, a fourth supporting arm and a fourth supporting arm, the turning joint arm is vertically fixed at the far end, far away from the box packaging machine rack, of the load main arm, and the other end of the turning joint arm is provided with a turning joint arm protruding positioning part; the bearing arm extends in a horizontal state and is used for horizontally bearing the luggage, one end of the bearing arm is clamped in the protruding positioning part of the turning joint arm, the bearing arm and the turning joint arm are combined to form an L-shaped bearing structure, and a needle plate is mounted at the top of the other end of the bearing arm. The structure has the advantages that through the L-shaped composite structure design of the turning type supporting arm, the problem of lateral inclination of a traditional straight arm during bag sewing is effectively solved, meanwhile, the stability of equipment can be remarkably improved, the service life of the equipment can be remarkably prolonged through modular connection and damping optimization, and the high-precision automatic sewing requirement is met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of bag machine equipment, and specifically relates to an improved elbow type supporting arm structure of a bag machine. BACKGROUND

[0002] The bag sewing machine is one of the most commonly used sewing machines for bag making and can also be called an industrial flat bed sewing machine. It can be used to sew the fabric, lining and other details of bags, can handle various materials (such as leather, canvas, lining, etc.), and has the advantages of fast speed, uniform sewing line and convenient control of thread tension. The traditional horizontal bag machine adopts a straight arm type supporting arm structure, which completes bag sewing through the cooperation of the straight arm and the sewing table. However, when sewing the side zipper of a trolley case, the bag needs to be placed on the straight arm, and the sewing needle is driven by the mechanical arm to move along the preset path. Although this structure can stably support the bag, it causes the side to be sewn to be in a non-horizontal state. This structure limitation causes many problems: first, the positioning accuracy is poor, and it is difficult to align when sewing the material in the inclined state of the bag, manual adjustment is required, and the uniformity of the sewing line cannot be guaranteed; second, the operation efficiency is low, and the operator needs to hold the bag to prevent it from falling during the sewing operation, which increases the labor intensity and greatly reduces the sewing speed. Therefore, there is a fundamental conflict between the straight arm type form and the horizontal positioning requirement of the bag. The improvements of existing manufacturers mainly focus on local optimization (such as support adjustment and structure reinforcement), but they do not break through the limitation of the straight arm form, resulting in low automation degree, high dependence on manual operation, poor overall work efficiency, and difficulty in meeting the demand of the bag industry for high-precision and high-efficiency sewing.

[0003] In view of the above situation, it is necessary to reconstruct the supporting arm form of the existing bag sewing machine to solve the problems of side inclination and manual dependence caused by the straight arm type design and promote the upgrading of bag sewing equipment to high precision and full automation. For this purpose, the applicant has made a beneficial design, and the technical solution to be introduced below is produced in this background. UTILITY MODEL CONTENTS

[0004] The utility model relates to an improved elbow type supporting arm structure of a bag machine, which is firm and reliable in combination. The horizontal positioning of the bag sewing surface is realized through the supporting composite structure designed in the L shape, effectively solving the problem of side inclination of the bag during sewing with the traditional straight arm structure, improving the degree of sewing automation, and significantly improving the stability and service life of the equipment by using modular connection and shock absorption optimization.

[0005] The utility model discloses a kind of improved elbow type supporting arm structures of luggage machine, comprising: a long strip-shaped load main arm, the end of the length direction of the load main arm is fixedly installed on the luggage machine frame;An elbow joint arm, the elbow joint arm is vertically fixed at the end position of the length direction of the load main arm away from the luggage machine frame, and a elbow joint arm protruding positioning portion is formed at the end position of the height direction of the elbow joint arm away from load main arm, a load arm, the load arm is extended and arranged in horizontal state and is used to carry luggage horizontally, and the end of the length direction of the load arm is matched and clamped in the elbow joint arm protruding positioning portion, and the load arm and elbow joint arm are combined to form L-shaped load structure, a needle plate is installed on the top of the end of the length direction of the load arm away from the elbow joint arm.

[0006] In a specific embodiment of the utility model, a elbow joint arm connecting hole is formed at the center position of the elbow joint arm protruding positioning portion, and a load arm connecting portion that is matched with the shape of the elbow joint arm connecting hole is formed at the end of the length direction of the load arm, and the load arm connecting portion is clamped in the elbow joint arm connecting hole, so as to realize the positioning connection between the load arm and the elbow joint arm.

[0007] In another specific embodiment of the utility model, a load main arm embedded circular table is formed at the end of the length direction of the load main arm away from the luggage machine frame, and the load main arm embedded circular table is embedded in the luggage machine frame, so as to realize the positioning installation of the load main arm.

[0008] In still another specific embodiment of the utility model, the load main arm is in the shape of long strip-shaped square tube, and a load main arm inner cavity is formed in the load main arm from one end to the other end.

[0009] In still another specific embodiment of the utility model, at least one longitudinal reinforcing rib is arranged in the load main arm inner cavity of the load main arm, and damping material is filled on the inner surface of the load main arm inner cavity, and the damping material is polyurethane foam or rubber.

[0010] In still another specific embodiment of the utility model, a elbow joint arm fixing hole is further arranged at the end position of the elbow joint arm close to the load main arm, and a load main arm connecting circular table is formed at the end of the length direction of the load main arm away from the luggage machine frame, the shape of the load main arm connecting circular table is matched with the shape of the elbow joint arm fixing hole, and the load main arm connecting circular table is matched and clamped in the elbow joint arm fixing hole, so as to realize the fixed connection between the elbow joint arm and the load main arm.

[0011] In further a specific embodiment of the utility model, the elbow joint arm is hollow and forms an elbow joint arm hollow cavity, the elbow joint arm hollow cavity is linked with the load main arm inner chamber.

[0012] In further a specific embodiment of the utility model, a plurality of needle plate screw holes are formed in the needle plate, and a plurality of connecting screws are arranged in the needle plate screw holes, and the needle plate is connected and fixed with the load bearing arm through the connecting screws arranged in the needle plate screw holes.

[0013] In further a specific embodiment of the utility model, the load bearing arm connecting portion is a flange structure, and the elbow joint arm connecting hole is correspondingly provided as a round hole structure.

[0014] The utility model discloses the beneficial effect lies in: through adopting the composite structure of L-shaped load bearing structure formed by the combination of load bearing arm and elbow joint arm, the L-shaped composite structure is fixedly installed at the end of load main arm, and the bending angle of the L-shaped load bearing composite structure is accurately matched with the inner cavity curved surface of the draw-bar box, so that the box body side can be horizontally attached to the head of the load bearing arm during bag sewing, compared with the forced torsion of the box body angle of the traditional straight arm type structure, the side to be sewn naturally presents a horizontal state, so that the bag is always in a horizontal state during sewing, and the side inclination problem caused by the traditional straight arm is completely eliminated, the degree of automation is effectively improved, manual intervention is reduced, and overall working efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic diagram of an embodiment of the utility model;

[0016] Figure 2 It is the structure exploded view schematic diagram of an embodiment of the utility model.

[0017] In the drawing: 1. load main arm, 11. load main arm inlaying round table, 12. load main arm inner chamber, 121. longitudinal reinforcing rib, 13. load main arm connecting round table;2. elbow joint arm, 21. elbow joint arm protruding positioning portion, 211. elbow joint arm connecting hole, 22. elbow joint arm fixed hole, 23. elbow joint arm hollow cavity;3. load bearing arm, 31. load bearing arm connecting portion, 32. needle plate, 321. needle plate screw hole. DETAILED DESCRIPTION

[0018] The following will be described in the form of examples, but the description of the examples is not a limitation on the scheme of the utility model, and any equivalent transformation made only in form but not in substance according to the concept of the utility model should be regarded as the technical scheme scope of the utility model.

[0019] In the following description, the directional or positional concepts of up, down, left, right, front and back are all in view of the present Figure 1 position, and therefore cannot be understood as a special limitation on the technical scheme provided by the utility model.

[0020] Please refer to Figure 1 and Figure 2 An improved elbow type supporting arm structure of a bag sewing machine, comprising: a long strip-shaped load main arm 1, one end of the length direction of the load main arm 1 is fixedly installed on the rack of the bag sewing machine; an elbow joint arm 2, the elbow joint arm 2 is vertically fixed at the position of the end of the length direction of the load main arm 1 away from the rack of the bag sewing machine, and a protruding positioning part 21 of the elbow joint arm is formed at the position of the end of the length direction of the elbow joint arm 2 away from the load main arm 1; a load bearing arm 3, the load bearing arm 3 is extended in a horizontal state and is used for horizontally bearing the bag, and the end of the length direction of the load bearing arm 3 is matched and clamped in the protruding positioning part 21 of the elbow joint arm, and the load bearing arm 3 and the elbow joint arm 2 are combined to form an L-shaped bearing structure, the L-shaped bearing structure is supported vertically by the elbow joint arm 2 and extended horizontally by the load bearing arm 3, and in this embodiment, the elbow joint arm 2 is extended downward, of course, the direction of the elbow joint arm 2 is not limited to this, and can also be extended upward, as long as it meets the actual sewing requirements of the bag; the L-shaped bearing structure ensures that the bag is in a horizontal state during sewing, avoiding the lateral tilting problem of the traditional straight arm structure; a needle plate 32 is installed at the top of the end of the length direction of the load bearing arm 3 away from the elbow joint arm 2, and the needle plate 32 can provide a sewing reference surface, effectively improving the sewing precision.

[0021] During the sewing of the bag, the part to be sewn of the bag can be placed horizontally on the needle plate 32 of the load bearing arm 3, the sewing machine head moves along the preset path, and the support of the load bearing arm 3 ensures that the bag is in a horizontal state, avoiding the deviation of the sewing line caused by lateral tilting, and the shock absorption design of the load main arm 1 reduces the vibration interference of the equipment, improving the sewing precision and efficiency.

[0022] In the embodiment, a bending joint arm connecting hole 211 is formed at the center of the aforementioned bending joint arm protruding positioning part 21, and a load bearing arm connecting part 31 with a shape matching that of the aforementioned bending joint arm connecting hole 211 is formed at one end of the load bearing arm 3 in the length direction, the aforementioned load bearing arm connecting part 31 is clamped in the bending joint arm connecting hole 211, thereby achieving the positioning connection of the aforementioned load bearing arm 3 and the bending joint arm 2; the flange-hole clamping structure of the aforementioned load bearing arm connecting part 31 and the bending joint arm connecting hole 211 can realize the quick disassembly of the load bearing arm 3, and the modular design facilitates maintenance; after clamping, there is no gap fit to ensure the rigid support of the L-shaped structure.

[0023] Further, a load main arm fitting circular truncated cone 11 is formed at one end of the load main arm 1 away from the aforementioned luggage machine rack in the length direction, the load main arm fitting circular truncated cone 11 is embedded in the aforementioned luggage machine rack, thereby achieving the positioning installation of the load main arm 1, and at the same time, the aforementioned load main arm 1 can be fixed to the luggage machine rack through bolts after the load main arm fitting circular truncated cone 11 is fitted, thereby enhancing the overall stability.

[0024] Please continue to see Figure 1 and Figure 2 The aforementioned load main arm 1 is in the shape of a long strip-shaped square tube, and a load main arm inner cavity 12 is formed inside the load main arm 1 from one end to the other end in the length direction; the square tube structure takes into account light weight and bending strength; the load main arm inner cavity 12 can be used to pass through a transmission module.

[0025] In the embodiment, at least one longitudinal reinforcing rib 121 is arranged in the load main arm inner cavity 12 of the aforementioned load main arm 1, the longitudinal reinforcing rib 121 improves the deformation resistance of the load main arm 1; and a damping material is filled on the inner side surface of the aforementioned load main arm inner cavity 12, the aforementioned damping material is polyurethane foam or rubber, the aforementioned damping material absorbs the high-frequency vibration of the sewing machine, thereby reducing the risk of needle deviation.

[0026] Furthermore, a corner joint arm fixing hole 22 is provided at one end of the aforementioned curved joint arm 2 near the aforementioned load main arm 1, and a load main arm connecting frustum 13 is formed at the end of the aforementioned load main arm 1 away from the aforementioned bag machine frame along its length. The shape of the aforementioned load main arm connecting frustum 13 is adapted to the shape of the corner joint arm fixing hole 22, and the load main arm connecting frustum 13 is fitted into the aforementioned corner joint arm fixing hole 22, thereby realizing the fixed connection between the corner joint arm 2 and the load main arm 1. The corner joint arm 2 and the load main arm 1 are also fixedly connected by fasteners. The fitting of the load main arm connecting frustum 13 and the corner joint arm fixing hole 22 realizes the vertical rigid fixation of the corner joint arm 2, avoiding loosening at the connection point. At the same time, no additional welding is required after assembly, simplifying the production process. Furthermore, the aforementioned curved joint arm 2 is hollow inside and forms a curved joint arm hollow cavity 23, which is connected to the aforementioned load main arm inner cavity 12.

[0027] Please continue reading Figure 2 The aforementioned needle plate 32 has multiple needle plate screw holes 321, and multiple connecting screws are installed in the aforementioned needle plate screw holes 321. The aforementioned needle plate 32 is connected and fixed to the bearing arm 3 by the connecting screws passing through the needle plate screw holes 321. The screw fixing method enables the rapid replacement of the aforementioned needle plate 32 to adapt to different sewing needs, while the multi-hole design ensures that the needle plate is installed firmly and avoids shaking during sewing.

[0028] Preferably, the aforementioned bearing arm connecting part 31 is a flange structure, while the aforementioned bend joint arm connecting hole 211 is correspondingly set as a round hole structure; the bend joint arm connecting hole 211 of the bearing arm connecting part 31, in conjunction with the structure, enables the bearing arm 3 to achieve precise angular positioning and ensures the stability of horizontal bearing.

[0029] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

[0030] In summary, the technical solution provided by this utility model makes up for the shortcomings of the prior art, successfully completes the utility model task, and faithfully realizes the technical effects described by the applicant in the above technical effect column.

Claims

1. An improved corner-type support arm structure for a bag making machine, characterized in that, include: A long, strip-shaped load-bearing main arm (1) is fixedly mounted on the frame of a bag-making machine at one end along its length. A curved joint arm (2) is vertically fixed at one end of the load-bearing main arm (1) away from the frame of the bag-making machine, and a curved joint arm protruding positioning part (21) is formed at one end of the curved joint arm (2) away from the load-bearing main arm (1) in the height direction. A bearing arm (3) is horizontally extended and used to horizontally bear the bags, and one end of the bearing arm (3) is fitted into the curved joint arm protruding positioning part (21) in the length direction. The bearing arm (3) and the curved joint arm (2) are combined to form an L-shaped bearing structure, and a needle plate (32) is installed on the top of the end of the bearing arm (3) away from the curved joint arm (2) in the length direction.

2. The improved corner support arm structure for a bag making machine according to claim 1, characterized in that: A bend joint arm connecting hole (211) is formed at the center of the protruding positioning part (21) of the bend joint arm, and a bearing arm connecting part (31) that is adapted to the shape of the bend joint arm connecting hole (211) is formed at one end of the bearing arm (3) in the length direction. The bearing arm connecting part (31) is fitted into the bend joint arm connecting hole (211) to realize the positioning connection between the bearing arm (3) and the bend joint arm (2).

3. The improved corner support arm structure for a bag making machine according to claim 1, characterized in that: A load arm fitting truncated cone (11) is formed at one end of the load arm (1) away from the frame of the bag machine along the length direction. The load arm fitting truncated cone (11) is fitted into the frame of the bag machine, thereby realizing the positioning and installation of the load arm (1).

4. The improved corner support arm structure for a bag making machine according to claim 1, characterized in that: The load arm (1) is a long strip-shaped square tube, and the load arm (1) has an inner cavity (12) that extends from one end to the other along its length.

5. The improved corner support arm structure for a bag making machine according to claim 4, characterized in that: At least one longitudinal reinforcing rib (121) is provided in the inner cavity (12) of the load arm (1), and the inner surface of the inner cavity (12) of the load arm is filled with damping material, which is polyurethane foam or rubber.

6. The improved corner support arm structure for a bag making machine according to claim 1, characterized in that: A corner joint arm fixing hole (22) is provided at one end of the corner joint arm (2) near the load main arm (1), and a load main arm connecting frustum (13) is formed at one end of the load main arm (1) away from the bag machine frame in the length direction. The shape of the load main arm connecting frustum (13) is adapted to the corner joint arm fixing hole (22), and the load main arm connecting frustum (13) is fitted into the corner joint arm fixing hole (22), thereby realizing the fixed connection between the corner joint arm (2) and the load main arm (1).

7. The improved corner support arm structure for a bag making machine according to claim 1, characterized in that: The inside of the curved joint arm (2) is hollow and forms a curved joint arm hollow cavity (23), which is connected to the inner cavity (12) of the load main arm.

8. The improved corner support arm structure for a bag making machine according to claim 1, characterized in that: Multiple needle plate screw holes (321) are provided on the needle plate (32), and multiple connecting screws are provided in the needle plate screw holes (321). The needle plate (32) is connected and fixed to the bearing arm (3) by the connecting screws passing through the needle plate screw holes (321).

9. An improved corner support arm structure for a bag making machine according to claim 2, characterized in that: The bearing arm connecting part (31) is a flange structure, while the bending joint arm connecting hole (211) is correspondingly set as a round hole structure.

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