Bag making machine with cushioning mechanism

Abstract

The utility model provides a bag making machine with a cushioning mechanism, which comprises a bag making machine main body, the bag making machine main body sequentially comprises a feeding section, a bag folding section and a discharging section, and the feeding section is further provided with the cushioning mechanism. The cushioning mechanism comprises an n-shaped supporting frame, two connecting rods and a pair of material conveying rollers, the two connecting rods are arranged on the supporting frame, the distance between the two connecting rods can be adjusted, the material conveying rollers are rotationally arranged between the two connecting rods, and sliding grooves allowing the two ends of the supporting frame to stretch into are formed in the side walls of the two sides of the material supply section; according to the utility model, an integrated cushioning structure between the supporting frame and the side wall of the feeding section is formed through the elastic mechanism, and vibration can be buffered through vertical swinging of the material penetrating roller at the moment that a material belt is stressed, so that a film is effectively prevented from being damaged; meanwhile, the distance between the connecting rods can be adjusted according to the width of the material belt, various specifications are compatible, the bag making efficiency and the film protection performance are improved, and the requirement for high-quality packaging production is met.

Description

Technical Field

[0001] The utility model relates to the technical field of bag-making machines, in particular to a bag-making machine with a shock-absorbing mechanism. Background Art

[0002] In the prior art, as the core equipment for producing various types of film bags, the high efficiency and finished product quality of the bag-making machine are directly related to the production efficiency and market competitiveness of the enterprise. The traditional composite film bag processing technology has widely adopted automated mechanical equipment. This process involves the continuous supply of raw material coils (usually polyester films, polyethylene films, etc.), and through precise edge-sealing and cutting processes, finally forming packaging bags with good sealing performance and accurate dimensions. This series of operations highly depends on the precise control and coordinated operation of the machinery.

[0003] Although the automated bag-making machine process has greatly improved production efficiency, in actual operation, especially in the feeding link, there are still some technical problems:

[0004] Most of the existing pulling mechanisms adopt an intermittent working mode to match different production rates, which requires the plastic film tape to be able to respond quickly and accurately to the feeding instructions. However, in this process, the tape often generates unnecessary vibrations and even tiny physical impacts due to the dynamic contact with the fixed cross rollers of the bag-making machine when being suddenly accelerated and pulled. Such irregular mechanical actions may not only cause scratches, stretching deformation and even breakage to the film material, but also directly affect the sealing degree of the edge-sealing and the overall strength of the bag in the subsequent processing steps, resulting in a decrease in the finished product rate and waste of resources.

[0005] In view of this, the inventor specifically designed a bag-making machine with a shock-absorbing mechanism, and this case was thus generated. Content of the Utility Model

[0006] In order to solve the above problems, the technical solution of the utility model is as follows:

[0007] A bag-making machine with a shock-absorbing mechanism, including a bag-making machine main body, the bag-making machine main body sequentially includes a feeding section, a bag-folding section and a discharging section, the feeding section is also provided with a shock-absorbing mechanism, the shock-absorbing mechanism includes a support frame in a "冂" shape, two connecting rods arranged on the support frame and with adjustable spacing, and a pair of material-transferring rollers rotatably arranged between the two connecting rods, the two side walls of the feeding section are provided with chutes for the two ends of the support frame to extend into, and the side wall of the feeding section is also provided with an elastic mechanism for generating a vertical elastic supporting force on the support frame.

[0008] Preferably, the support frame includes a cross bar and vertical bars parallel to both ends of the cross bar, and the chutes are slidably matched with the vertical bars.

[0009] Preferably, the elastic mechanism is a gas spring, which includes a base and a telescopic rod that can elastically extend and retract relative to the base. The base is fixed relative to the inner wall of the feeding section, and the end of the telescopic rod is fixed to the inner side of the vertical rod.

[0010] Preferably, a connecting piece is provided at the end of the telescopic rod, the connecting piece is provided with a through connecting hole, the side wall of the vertical rod is provided with a fixing seat, the fixing seat is provided with a horizontally extending connecting portion, the connecting portion is provided with a mounting hole adapted to the connecting hole, and the connecting piece is fixed to the connecting portion by a connecting bolt that sequentially passes through the connecting hole and the mounting hole.

[0011] Preferably, a fixing plate is provided on the inner side wall of the feeding section, the bottom of the base is fixed to the upper end of the fixing plate, and at least one fixing member is provided on the inner side wall of the feeding section and above the fixing plate, and the fixing member is used to fix the side of the base.

[0012] Preferably, a guide rod is provided at the bottom of the vertical rod, and the slide groove includes an upper section adapted to the vertical rod and a lower section adapted to the guide rod.

[0013] Preferably, the guide rod is columnar, the vertical rod is a square rod with a rectangular cross section, the cross-sectional shapes of the upper section and the lower section are respectively adapted to the vertical rod and the guide rod, and the outer diameter of the guide rod is smaller than the smallest margin of the vertical rod.

[0014] Preferably, a step surface is formed between the upper section and the lower section, a linear bearing is provided at the position of the step surface, and the linear bearing is slidably connected to the guide rod.

[0015] Preferably, a sliding sleeve having a cross-section adapted to the cross bar is provided on the top of the connecting rod, and the sliding sleeve is pressed and fixed to the cross bar by a locking bolt.

[0016] Preferably, a detachable fixing section is provided at the lower end of the connecting rod, and the fixing section and the connecting rod form a fixed structure connected left and right by fastening bolts, and the connecting position between the fixing section and the connecting rod is penetrated by axial holes distributed up and down, and a limiting ring groove coaxial with the axial hole is provided in the middle of the axial hole and located inside the fixing section and the connecting rod, and rotating shafts cooperating with the axial hole are symmetrically provided on both sides of the material transfer roller, and an annular limiting portion is provided on the rotating shaft, which is in an annular shape and cooperates with the limiting ring groove.

[0017] The beneficial effects of the utility model are as follows:

[0018] The utility model forms an integrated shock-absorbing structure between the support frame and the side wall of the feeding section through an elastic mechanism, which can buffer vibrations through the vertical swing of the threading roller at the moment when the material belt is subjected to force, thereby effectively preventing damage to the film; at the same time, the spacing between the connecting rods can be adjusted according to the width of the material belt, and it is compatible with a variety of specifications, thereby improving the bag making efficiency and film protection performance, and meeting the needs of high-quality packaging production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0020] in:

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a partial structural schematic diagram of the shock absorbing mechanism in the utility model;

[0023] Figure 3 It is a partial cross-sectional schematic diagram of the installation structure of the support frame in the utility model;

[0024] Figure 4 yes Figure 3 A schematic diagram of the local enlarged structure of the middle A area;

[0025] Figure 5 It is a partial structural schematic diagram highlighting the connecting rod in the utility model;

[0026] Figure 6 It is a partial cross-sectional structural schematic diagram highlighting the connecting rod in the utility model;

[0027] Figure 7 It is a partial structural schematic diagram highlighting the material transfer roller in the utility model.

[0028] Description of labels:

[0029] 10. Feeding section; 11. Slide; 111. Upper section; 112. Lower section; 20. Bag folding section; 30. Discharging section; 40. Shock-absorbing mechanism; 50. Support frame; 51. Crossbar; 52. Vertical bar; 53. Guide rod; 60. Connecting rod; 61. Sliding sleeve; 62. Locking bolt; 63. Fixed section; 64. Fastening bolt; 65. Shaft hole; 66. Limiting ring groove; 70. Transfer roller; 71. Rotating shaft; 72. Annular limiting part; 80. Elastic mechanism; 81. Base; 82. Telescopic rod; 83. Connecting piece; 84. Fixed seat; 85. Connecting part; 86. Connecting bolt; 87. Fixed plate; 88. Fixing piece; 90. Linear bearing. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] Embodiment 1

[0032] Please refer to Figures 1 to 7 , which is a bag making machine with a shock absorption mechanism as Embodiment 1 of the present utility model, including a bag making machine main body. The bag making machine main body sequentially includes a feeding section 10, a bag folding section 20, and a discharging section 30. The feeding section 10 is also provided with a shock absorption mechanism 40. The shock absorption mechanism 40 includes a support frame 50 in the shape of "冂", two connecting rods 60 arranged on the support frame 50 and with adjustable spacing, and a pair of material conveying rollers 70 rotatably arranged between the two connecting rods 60. The two side walls of the feeding section 10 are provided with chutes 11 for the two ends of the support frame 50 to extend into, and the side wall of the feeding section 10 is also provided with an elastic mechanism 80 for generating a vertical elastic supporting force on the support frame 50.

[0033] Preferably, the support frame 50 includes a cross bar 51 and vertical bars 52 arranged in parallel at both ends of the cross bar 51, and the chutes 11 are slidably matched with the vertical bars 52.

[0034] Preferably, the elastic mechanism 80 is a gas spring. The gas spring includes a base 81 and a telescopic rod 82 that can elastically expand and contract relative to the base 81. The base 81 is fixed to the inner side wall of the feeding section 10, and the end of the telescopic rod 82 is fixed to the inner side of the vertical bar 52.

[0035] Preferably, a connecting piece 83 is provided at the end of the telescopic rod 82. The connecting piece 83 is provided with a through connecting hole (not marked in the figure). A fixing seat 84 is provided on the side wall of the vertical bar 52. The fixing seat 84 is provided with a horizontally extending connecting portion 85. An installation hole (not marked in the figure) adapted to the connecting hole is provided on the connecting portion 85. The connecting piece 83 is fixed to the connecting portion 85 through a connecting bolt 86 that sequentially passes through the connecting hole and the installation hole.

[0036] Preferably, a fixing plate 87 is provided on the inner side wall of the feeding section 10. The bottom of the base 81 is fixed to the upper end of the fixing plate 87. At least one fixing member 88 is provided on the inner side wall of the feeding section 10 and above the fixing plate 87. The fixing member 88 is used to fix the side of the base 81. In this embodiment, two fixing members 88 are provided and are hoop sleeves, thereby further enhancing the connection stability between the side wall of the feeding section 10 and the gas spring.

[0037] Preferably, a guide rod 53 is provided at the bottom of the vertical bar 52. The chute 11 includes an upper section 111 adapted to the vertical bar 52 and a lower section 112 adapted to the guide rod 53.

[0038] Preferably, the guide rod 53 is cylindrical, the vertical bar 52 is in the shape of a square rod with a rectangular cross section, the cross-sectional shapes of the upper section 111 and the lower section 112 are respectively adapted to the vertical bar 52 and the guide rod 53, and the outer diameter of the guide rod 53 is smaller than the minimum side distance of the vertical bar 52.

[0039] Preferably, a step surface (not marked in the figure) is formed between the upper section 111 and the lower section 112, and a linear bearing 90 is provided at the step surface. The linear bearing 90 is slidably connected to the guide rod 53, thereby enhancing the guiding effect of the sliding of the guide rod 53 through the linear bearing 90, so that it can achieve stable and smooth sliding.

[0040] Preferably, a sliding sleeve 61 with a cross-section adapted to the cross bar 51 is provided on the top of the connecting rod 60. The sliding sleeve 61 is pressed and fixed to the cross bar 51 by a locking bolt 62, thereby facilitating the adjustment of the spacing of the connecting rods 60. In combination with a transfer roller 70 of corresponding length, it can adapt to the bag-making process of film products with different widths, thereby broadening its scope of application.

[0041] Preferably, a detachable fixing section 63 is provided at the lower end of the connecting rod 60, and the fixing section 63 and the connecting rod 60 form a fixed structure connected left and right by fastening bolts 64, and the connecting position between the fixing section 63 and the connecting rod 60 is penetrated by axial holes 65 distributed up and down, and a limiting ring groove 66 coaxial with the axial hole 65 is provided in the middle of the axial hole 65 and located inside the fixing section 63 and the connecting rod 60, and a rotating shaft 71 cooperating with the axial hole 65 is symmetrically provided on both sides of the material transfer roller 70, and the rotating shaft 71 is provided with an annular limiting portion 72 which is annular and cooperates with the limiting ring groove 66.

[0042] Therefore, through the cooperation between the connecting rod 60 and the fixing section 63 as well as the annular limiting portion 72 and the limiting ring groove 66, the replacement installation and limiting fixation of the material transfer roller 70 can be further facilitated.

[0043] The beneficial effects of this embodiment are as follows:

[0044] The utility model forms an integrated shock-absorbing structure between the support frame 50 and the side wall of the feeding section 10 through the elastic mechanism 80, which can buffer the vibration through the vertical swing of the threading roller when the material belt is subjected to force, thereby effectively preventing damage to the film; at the same time, the spacing between the connecting rods 60 can be adjusted according to the width of the material belt, and it is compatible with various specifications, thereby improving the bag making efficiency and film protection performance, and meeting the needs of high-quality packaging production.

[0045] Embodiment 2

[0046] Figures 1 to 7 The second embodiment of the utility model is shown, a bag making machine with a shock absorbing mechanism, which aims to solve the problem that the material belt of the traditional bag making machine is easily damaged during the feeding process. The bag making machine body is composed of a feeding section 10, a bag folding section 20 and a discharging section 30 in sequence, wherein the feeding section 10 is the core improvement area, and a shock absorbing system is built in to ensure the stability and efficiency of the entire bag making process.

[0047] The core component of the shock absorption mechanism 40 is a "冂"-shaped support frame 50, which consists of a cross bar 51 and vertical bars 52 symmetrically arranged at both ends. The support frame 50 is designed to slide up and down along the preset sliding grooves 11 on both sides of the feeding section 10, realizing flexible adjustment of the dynamic contact points with the tape. It should be noted that the sliding groove 11 is designed in two sections. The upper section 111 fits closely with the vertical bar 52, while the lower section 112 is adapted to the guide bar 53 at the bottom of the vertical bar 52. This sectional design ensures smooth sliding while maintaining the structural stability.

[0048] In the elastic mechanism 80 part, an efficient gas spring is used as the power source. The base 81 of the gas spring is fixed on the fixed plate 87 on the inner side wall of the feeding section 10, and the telescopic rod 82 is connected to the inner side of the vertical bar 52 through a connecting piece 83 at one end. The fixation between the connecting piece 83 and the vertical bar 52 is completed through a connecting bolt 86, ensuring that the gas spring can stably provide the necessary vertical elastic support force to effectively absorb and relieve the vibration generated when the tape accelerates.

[0049] In addition, a sliding sleeve 61 that matches the shape of the cross bar 51 is configured at the top end of the connecting rod 60 and fastened by a locking bolt 62, making the installation of the material transfer roller 70 more stable and having a certain range of movement to adapt to the changes of the tape.

[0050] The fixed section 63 at the lower end of the connecting rod 60 not only realizes rigid connection with the connecting rod 60 through a fastening bolt 64, but also has a shaft hole 65 and a limiting ring groove 66 inside, which are precisely matched with the annular limiting part 72 on the material transfer roller 70, ensuring both the rotational freedom of the material transfer roller 70 and restricting its excessive swing, enhancing the durability and reliability of the system.

[0051] The beneficial effects of this embodiment are as follows:

[0052] Through the innovative design of the above shock absorption mechanism 40, especially when applying tension to the tape in the feeding section 10, the material transfer roller 70 can achieve small vertical swings through the frame supported by the gas spring, greatly absorbing the instantaneous impact force when the tape accelerates, effectively preventing the film from tearing or deforming, and significantly improving the protection effect of the film material.

[0053] The adjustable distance between the connecting rods 60 enables the bag-making machine to flexibly handle film tapes of different widths without frequently replacing equipment or accessories, significantly improving production flexibility and equipment utilization rate, and meeting the needs of diversified and customized packaging production.

[0054] The introduction of the overall shock-absorbing structure not only protects the film material, but also reduces problems such as loose edge sealing and reduced bag strength caused by vibration, thereby significantly improving the qualified rate and overall quality of the finished bags, further promoting the improvement of the company's production efficiency, and meeting the modern packaging industry's pursuit of high-quality and high-efficiency production.

[0055] In summary, the utility model solves the problem of material belt damage faced by the bag making machine in high-speed production through the shock-absorbing mechanism 40, while improving the versatility and production efficiency of the equipment.

[0056] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A bag making machine with a shock absorbing mechanism, comprising a bag making machine body, wherein the bag making machine body comprises a feeding section (10), a bag folding section (20) and a discharging section (30) in sequence, characterized in that: The feeding section (10) is further provided with a shock absorption mechanism (40). The shock absorption mechanism (40) includes a support frame (50) in an "n" shape, two connecting rods (60) arranged on the support frame (50) with adjustable spacing, and a pair of material conveying rollers (70) rotatably arranged between the two connecting rods (60). The two side walls of the feeding section (10) are provided with chutes (11) for the two ends of the support frame (50) to extend into, and the side wall of the feeding section (10) is further provided with an elastic mechanism (80) for generating a vertical elastic supporting force on the support frame (50).

2. A bag making machine with a shock absorbing mechanism according to claim 1, characterized in that: The support frame (50) includes a cross bar (51) and vertical bars (52) arranged in parallel at both ends of the cross bar (51). The chute (11) is in sliding fit with the vertical bar (52).

3. The bag making machine with a shock absorbing mechanism according to claim 2, characterized in that: The elastic mechanism (80) is a gas spring. The gas spring includes a base (81) and a telescopic rod (82) that can elastically expand and contract relative to the base (81). The base (81) is fixed relative to the inner side wall of the feeding section (10), and the end of the telescopic rod (82) is fixed to the inner side of the vertical bar (52).

4. The bag making machine with a shock absorbing mechanism according to claim 3, characterized in that: A connecting piece (83) is provided at the end of the telescopic rod (82). The connecting piece (83) is provided with a through connecting hole. A fixing seat (84) is provided on the side wall of the vertical bar (52). The fixing seat (84) is provided with a horizontally extending connecting portion (85). An installation hole adapted to the connecting hole is provided on the connecting portion (85). The connecting piece (83) is fixed to the connecting portion (85) through a connecting bolt (86) that sequentially passes through the connecting hole and the installation hole.

5. The bag making machine with a shock absorbing mechanism according to claim 3, characterized in that: A fixing plate (87) is provided on the inner side wall of the feeding section (10). The bottom of the base (81) is fixed to the upper end of the fixing plate (87). At least one fixing member (88) is provided on the inner side wall of the feeding section (10) and above the fixing plate (87). The fixing member (88) is used to fix the side of the base (81).

6. The bag making machine with a shock absorbing mechanism according to claim 2, characterized in that: A guide rod (53) is provided at the bottom of the vertical bar (52). The chute (11) includes an upper section (111) adapted to the vertical bar (52) and a lower section (112) adapted to the guide rod (53).

7. A bag making machine with a shock absorbing mechanism according to claim 6, characterized in that: The guide rod (53) is cylindrical, the vertical bar (52) is in the shape of a square rod with a rectangular cross section. The cross-sectional shapes of the upper section (111) and the lower section (112) are respectively adapted to the vertical bar (52) and the guide rod (53). The outer diameter of the guide rod (53) is smaller than the minimum side distance of the vertical bar (52).

8. The bag making machine with a shock absorbing mechanism according to claim 7, characterized in that: A stepped surface is formed between the upper section (111) and the lower section (112). A linear bearing (90) is provided at the position of the stepped surface. The linear bearing (90) is in sliding connection with the guide rod (53).

9. The bag making machine with a shock absorbing mechanism according to claim 2, characterized in that: A sliding sleeve (61) with a cross section adapted to the cross bar (51) is provided at the top of the connecting rod (60). The sliding sleeve (61) is tightly fixed to the cross bar (51) through a locking bolt (62).

10. The bag making machine with a shock absorbing mechanism according to claim 1, characterized in that: A detachable fixing section (63) is provided at the lower end of the connecting rod (60), and the fixing section (63) and the connecting rod (60) form a fixed structure connected left and right by fastening bolts (64), and the connecting position between the fixing section (63) and the connecting rod (60) is penetrated by shaft holes (65) distributed up and down, and a limiting ring groove (66) coaxial with the shaft hole (65) is provided in the middle of the shaft hole (65) and located inside the fixing section (63) and the connecting rod (60), and rotating shafts (71) cooperating with the shaft hole (65) are symmetrically provided on both sides of the material transfer roller (70), and the rotating shaft (71) is provided with an annular limiting portion (72) which is annular and cooperates with the limiting ring groove (66) for limiting.

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