Fruit bag opening hobbing mechanism of bag making machine

Abstract

The utility model provides a fruit bag opening hobbing mechanism of a bag making machine, which comprises a base, a support frame, an auxiliary roller, a cutter roller and a knife rest ring, the fruit bag opening hobbing mechanism comprises a mounting plate and an arc-shaped plate, the arc-shaped plate is of an arc-shaped structure coaxial with the cutter roller, a cutter is arranged on the arc-shaped plate, and a mounting groove for mounting the mounting plate is embedded in the cutter roller. A limiting hole is formed in the mounting groove in a penetrating mode, a limiting assembly for limiting the limiting hole is arranged on the mounting plate, the limiting assembly comprises a movable plate which is movably arranged in the mounting plate, a movable groove for the movable plate to move is formed in the mounting plate, and the movable plate is fixedly connected with a limiting rod and a connecting rod right opposite to the limiting hole and is of a U-shaped structure; a moving groove for the connecting rod to move is formed in the mounting plate, the connecting rod is fixedly connected with the movable plate and sleeved with a first spring, the first spring is located in the moving groove, and the second end of the connecting rod extends to the outer wall of the mounting plate. According to the fruit bag opening hobbing mechanism of the bag making machine, the effect of improving the cutter replacement efficiency can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of bag making machine technology, and more specifically, to a bag making machine fruit bag opening rolling cutting mechanism. Background Technology

[0002] A bag-making machine is a mechanical device that uses a series of processing steps to make bags of various shapes from rolls of plastic film, paper, and other materials. Bag-making machines are usually equipped with a fruit bag opening and rolling cutting mechanism, which is used to cut the opening of the fruit bag during the production process so that the fruit stem can pass through and facilitate subsequent bagging operations. However, the existing bag-making machine's fruit bag opening and rolling cutting mechanism has a relatively limited range of cut shapes for fruit bags, thus limiting the versatility of the fruit bags.

[0003] To address the aforementioned issues, and regarding the technical problem that existing bag-making machine fruit bag opening and rolling cutting mechanisms offer a limited range of cut shapes for fruit bags, thus restricting their versatility, extensive research revealed a bag-making machine fruit bag opening and rolling cutting mechanism with patent publication number CN208247609U. This device, belonging to the field of young fruit bag-making machine technology, utilizes a detachable blade holder ring to allow for blade replacement, enabling it to be adapted to different shapes of fruit bags according to actual needs, thereby improving the device's versatility.

[0004] However, the aforementioned bag-making machine's fruit bag opening rolling cutting mechanism still has some problems. For example, the device uses bolts to fix the groove to install the blade holder ring, which is time-consuming and labor-intensive. Furthermore, the bolts may loosen during the continuous rotation of the cutting roller, easily causing the blade holder ring to slide within the fixing groove. To address these problems, this utility model proposes a bag-making machine's fruit bag opening rolling cutting mechanism. Utility Model Content

[0005] The present invention aims to solve the technical problems mentioned in the background art and provide a rolling cutting mechanism for opening fruit bags in a bag making machine.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fruit bag opening and cutting mechanism for a bag making machine, comprising a base, a support frame, an auxiliary roller, a cutting roller, and a blade holder ring, which includes a mounting plate and an arc-shaped plate. The arc-shaped plate is an arc-shaped structure coaxial with the cutting roller. A cutting blade is provided on the arc-shaped plate. The cutting roller has an embedded mounting groove for mounting the mounting plate. A limiting hole is provided through the mounting groove. The mounting plate is provided with a limiting component for limiting the limiting hole. The limiting component includes a movable plate, which is movably disposed within the mounting plate. The mounting plate has a movable groove for the movable plate to move. A limiting rod is fixedly connected to the movable plate opposite the limiting hole. The limiting rod is configured to limit the limiting hole. A connecting rod, which has a U-shaped structure, is movably disposed within the mounting plate. The mounting plate has a movable groove for the connecting rod to move. The first end of the connecting rod is fixedly connected to the end of the movable plate opposite to the limiting rod and is fitted with a first spring. The first spring is located within the movable groove. The second end of the connecting rod extends to the outer wall of the mounting plate.

[0007] A further preferred embodiment: at least one second spring is fixedly connected inside the movable groove, and the second spring is fixedly connected to the connecting rod.

[0008] A further preferred embodiment: a pressing plate is fixedly connected to the second end of the connecting rod.

[0009] A further preferred embodiment: an embedding plate is fixedly connected to the cutting roller, and the end of the arc-shaped plate opposite to the mounting plate is embedded with an embedding groove into which the embedding plate can be embedded.

[0010] A further preferred embodiment: the embedded plate has an L-shaped structure.

[0011] A further preferred embodiment: the arc-shaped plate is fixedly connected to multiple pointed cones along the cutter, and the multiple pointed cones are spaced apart along the length direction of the arc-shaped plate.

[0012] A further preferred embodiment: The base is provided with two sets of guiding mechanisms relative to the support frame. The guiding mechanism includes two fixed plates and two guide rollers. The two fixed plates are symmetrically arranged on the base, and the two guide rollers are rotatably arranged on the two fixed plates.

[0013] Beneficial effects:

[0014] 1. By setting a limiting component, limiting hole, and blade holder ring, the blade holder ring is installed in the mounting groove, and then the limiting component is used to fix the cutting roller and the blade holder ring. The overall operation structure is simple, which makes it easier to install the blade holder ring onto the cutting roller, improving the efficiency of blade replacement. At the same time, it can ensure the accuracy of the position of the blade holder ring on the cutting roller, which is beneficial to the stability of the blade during the rolling cutting process, thereby improving the accuracy of fruit bag opening cutting.

[0015] 2. With the addition of a second spring and a pressing plate, the second spring acts as an auxiliary buffer and reset mechanism when the connecting rod moves within the moving groove; the pressing plate design increases the ease of operation, allowing operators to more easily control the movement of the connecting rod.

[0016] 3. By incorporating a guiding mechanism, the material of the fruit bag is ensured to enter the rolling cutting area in the correct direction and position, thus improving the accuracy of the fruit bag opening cut. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a front view of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of the cutting roller and the blade holder ring of this utility model.

[0020] Figure 4 This is a schematic diagram of the limiting hole of this utility model.

[0021] Figure 5 This is a schematic diagram of the mounting groove and the embedded plate of this utility model.

[0022] Figure 6 This is a schematic diagram of the structure of the mounting plate, the pointed cone, and the arc-shaped plate of this utility model.

[0023] Figure 7 This is a schematic diagram of the embedded groove of this utility model.

[0024] Figure 8 This is a schematic diagram of the limiting component of this utility model.

[0025] Figure 1-8In the middle: 1. Base; 2. Support frame; 3. Auxiliary roller; 4. Cutting roller; 5. Guide mechanism; 51. Guide roller; 52. Fixing plate; 6. Cutting blade; 7. Blade holder ring; 71. Arc plate; 72. Mounting plate; 8. Cone; 9. Limiting assembly; 91. Limiting rod; 92. Movable plate; 93. Movable groove; 94. First spring; 95. Connecting rod; 10. Mounting groove; 11. Embedded plate; 12. Second spring; 13. Pressing plate; 14. Limiting hole; 15. Moving groove; 16. Embedded groove. Detailed Implementation

[0026] The following will refer to the appendix in the embodiments of this utility model. Figures 1-8 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0027] Please see Figure 1-8 In this embodiment of the present invention, a bag-making machine fruit bag opening and rolling cutting mechanism includes a base 1, a support frame 2, an auxiliary roller 3, a cutting roller 4, and a blade holder ring 7, which includes a mounting plate 72 and an arc-shaped plate 71. The arc-shaped plate 71 is an arc-shaped structure coaxial with the cutting roller 4. A cutting blade 6 is provided on the arc-shaped plate 71. The cutting roller 4 has an embedded mounting groove 10 for mounting the mounting plate 72. A limiting hole 14 is provided through the mounting groove 10. The mounting plate 72 is provided with a limiting component 9 for limiting the limiting hole 14. The limiting component 9 includes a movable plate 92, which is movably disposed within the mounting plate 72. The mounting plate 72 has a movable groove 93 for the movable plate 92 to move. The movable plate 92 is fixedly connected to the limiting hole 14 with a limiting rod 91. The limiting rod 91 is configured to limit the limiting hole 14. The connecting rod 95 is U-shaped and is movably disposed in the mounting plate 72. The mounting plate 72 has a movable groove 15 for the connecting rod 95 to move. The first end of the connecting rod 95 is fixedly connected to the end of the movable plate 92 away from the limiting rod 91 and is fitted with a first spring 94. The first spring 94 is located in the movable groove 93. The second end of the connecting rod 95 extends to the outer wall of the mounting plate 72.

[0028] Specifically, when it is necessary to replace the cutter 6 with a different shape, by pressing the second end of the connecting rod 95 of the limiting assembly 9, the connecting rod 95 moves toward the moving groove 15. Since the movable groove 93 is connected to the moving groove 15, the connecting rod 95 drives the movable plate 92 to move along the movable groove 93. The movable plate 92 compresses the first spring 94 and drives the limiting rod 91 to retract into the movable groove 93. At this time, the limiting rod 91 releases the limiting hole 14, thereby realizing the disassembly of the cutter ring 7. Then, press the connecting rod 95 on the cutter ring 7 that needs to be replaced, so that the limiting rod 91 retracts into the movable groove 93, and then the cutter that needs to be replaced... The mounting plate 72 on the holder ring 7 is inserted into the mounting groove 10. At this time, the arc-shaped plate 71 is in contact with the outer wall of the cutter roller 4. Since the shapes of the mounting groove 10 and the mounting plate 72 match, the connecting rod 95 is released, so that the limiting rod 91 is limited by the elastic force of the first spring 94 to limit the limiting hole 14. This realizes the replacement of the blade holder ring 7 and the cutter 6. The overall operation structure is simple, which makes it easier to install the blade holder ring 7 onto the cutter roller 4, improves the replacement efficiency of the cutter 6, and ensures the positional accuracy of the blade holder ring 7 on the cutter roller 4. This is beneficial to the stability of the cutter 6 during the rolling cutting process, thereby improving the accuracy of the fruit bag opening cutting.

[0029] It should be noted that in this embodiment, there are two limiting holes 14 and two sets of limiting components 9, which are arranged opposite to each other in the mounting plate 72. At the same time, the installation position and operation mode of the base 1, support frame 2, auxiliary roller 3 and cutter roller 4 can be referred to the publication document with patent announcement number CN208247609U. The driving method of auxiliary roller 3 and cutter roller 4 is prior art and will not be described in detail here. Secondly, the mounting plate 72, mounting groove 10, limiting rod 91 and limiting hole 14 are all square structures to avoid the rotation of the cutter holder ring 7. At the same time, in order to make the arc plate 71 and the cutter roller 4 more tightly connected, anti-slip balls can be added to the contact surface of the two.

[0030] In this embodiment of the utility model, such as Figure 8 As shown, at least one second spring 12 is fixedly connected inside the moving groove 15. The second spring 12 is fixedly connected to the connecting rod 95. Specifically, when the connecting rod 95 moves inside the moving groove 15, the second spring 12 plays the role of auxiliary buffering and resetting.

[0031] In this embodiment of the utility model, such as Figure 3 , Figure 6 , Figure 7 and Figure 8 As shown, a pressing plate 13 is fixedly connected to the second end of the connecting rod 95. Specifically, the design of the pressing plate 13 increases the convenience of operation, allowing the operator to more easily control the movement of the connecting rod 95. The pressing plate 13 has an arc-shaped structure and its height is less than that of the arc-shaped plate 71.

[0032] In this embodiment of the utility model, such as Figure 4 , Figure 5 and Figure 7 As shown, an embedded plate 11 is fixedly connected to the cutter roller 4. The end of the arc-shaped plate 71 facing away from the mounting plate 72 is embedded with an embedding groove 16 for the embedded plate 11 to be embedded in. The embedded plate 11 has an L-shaped structure. Specifically, when installing the blade holder ring 7, the embedded plate 11 is embedded into the embedding groove 16. Combined with the limiting function of the limiting component 9, the position of the blade holder ring 7 on the cutter roller 4 is further fixed, improving the overall structural stability. The L-shaped embedded plate 11 can provide support force in different directions, enhancing the tightness of the connection between the blade holder ring 7 and the cutter roller 4.

[0033] In this embodiment of the utility model, such as Figure 3 , Figure 6 and Figure 7 As shown, the arc plate 71 is fixedly connected to multiple pointed cones 8 along the cutter 6. The multiple pointed cones 8 are spaced apart along the length of the arc plate 71. Specifically, the multiple pointed cones 8 are located at the end of the cutter 6 (referring to the end of the cutter 6 along the rotation direction of the cutter roller 4). The pointed cones 8 are spaced apart at the edge of the fruit bag cut so that the part of the fruit bag not cut by the cutter 6 forms a cutting line, which facilitates the subsequent separation of the fruit bag. It should be noted that after the fruit bag is cut by the multiple pointed cones 8, the cutting line formed by the fruit bag will not be pulled and broken by the guide mechanism 5, the cutting roller and the auxiliary roller 3 during transportation.

[0034] In this embodiment of the utility model, such as Figure 1 and Figure 2 As shown, two sets of guiding mechanisms 5 are provided on the base 1 relative to the support frame 2. The guiding mechanism 5 includes two fixed plates 52 and two guide rollers 51. The two fixed plates 52 are symmetrically arranged on the base 1, and the two guide rollers 51 are rotatably arranged on the two fixed plates 52. Specifically, during the material conveying process of the fruit bag, the fruit bag passes between the two guide rollers 51. The guide rollers 51 rotate under the friction of the fruit bag. Through the opposite rotation of the two guide rollers 51, the conveying direction of the fruit bag can be guided and corrected, so that the fruit bag can accurately enter between the cutter roller 4 and the auxiliary roller 3 for opening and rolling cut. The guiding mechanism 5 can ensure that the fruit bag material enters the rolling cut area in the correct direction and position, thereby improving the accuracy of the fruit bag opening cut.

[0035] Working principle: When it is necessary to replace the cutter 6 with a different shape, by pressing the second end of the connecting rod 95 of the limiting assembly 9, the connecting rod 95 moves towards the moving groove 15. Since the movable groove 93 is connected to the moving groove 15, the connecting rod 95 drives the movable plate 92 to move along the movable groove 93. The movable plate 92 compresses the first spring 94 and drives the limiting rod 91 to retract into the movable groove 93. At this time, the limiting rod 91 releases the limiting hole 14, thereby realizing the disassembly of the cutter holder ring 7. Then, press the connecting rod 95 on the cutter holder ring 7 that needs to be replaced, so that the limiting rod 91 retracts into the movable groove 93, and then the cutter that needs to be replaced is removed. The mounting plate 72 on the frame ring 7 is inserted into the mounting groove 10. At this time, the arc plate 71 is in contact with the outer wall of the cutter roller 4. Since the shapes of the mounting groove 10 and the mounting plate 72 match, the connecting rod 95 is released, so that the limiting rod 91 is limited by the elastic force of the first spring 94 to limit the limiting hole 14, thus realizing the replacement of the blade holder ring 7 and the cutter 6. The overall operation structure is simple, which makes it easier to install the blade holder ring 7 onto the cutter roller 4, improving the replacement efficiency of the cutter 6. At the same time, it can ensure the position accuracy of the blade holder ring 7 on the cutter roller 4, which is beneficial to the stability of the cutter 6 during the rolling cutting process, thereby improving the accuracy of the fruit bag opening cutting.

Claims

1. A fruit bag opening and cutting mechanism for a bag making machine, comprising a base (1), a support frame (2), an auxiliary roller (3), and a cutting roller (4), characterized in that: The cutter holder ring (7) includes a mounting plate (72) and an arc-shaped plate (71). The arc-shaped plate (71) is an arc-shaped structure coaxial with the cutter roller (4). A cutter (6) is provided on the arc-shaped plate (71). The cutter roller (4) has an embedded mounting groove (10) for mounting the mounting plate (72). A limiting hole (14) is provided through the mounting groove (10). The mounting plate (72) is provided with a limiting component (9) for limiting the limiting hole (14). The limiting component (9) includes: A movable plate (92) is movably disposed within the mounting plate (72). The mounting plate (72) has a movable groove (93) for the movable plate (92) to move. A limiting rod (91) is fixedly connected to the limiting hole (14) of the movable plate (92). The limiting rod (91) is configured to limit the limiting hole (14). A connecting rod (95) has a U-shaped structure. The connecting rod (95) is movably disposed in the mounting plate (72). The mounting plate (72) is provided with a movable groove (15) for the connecting rod (95) to move. The first end of the connecting rod (95) is fixedly connected to the end of the movable plate (92) away from the limiting rod (91) and is fitted with a first spring (94). The first spring (94) is located in the movable groove (93). The second end of the connecting rod (95) extends to the outer wall of the mounting plate (72).

2. The fruit bag opening and rolling cutting mechanism of the bag making machine according to claim 1, characterized in that: At least one second spring (12) is fixedly connected inside the moving groove (15), and the second spring (12) is fixedly connected to the connecting rod (95).

3. The fruit bag opening and rolling cutting mechanism of the bag making machine according to claim 2, characterized in that: A pressing plate (13) is fixedly connected to the second end of the connecting rod (95).

4. The fruit bag opening and rolling cutting mechanism of the bag making machine according to claim 1, characterized in that: An embedded plate (11) is fixedly connected to the cutting roller (4), and an embedded groove (16) is embedded in the end of the arc plate (71) away from the mounting plate (72) for the embedded plate (11) to be embedded.

5. The fruit bag opening and rolling cutting mechanism of a bag making machine according to claim 4, characterized in that: The embedded plate (11) has an L-shaped structure.

6. The fruit bag opening and rolling cutting mechanism of the bag making machine according to claim 1, characterized in that: The arc-shaped plate (71) is fixedly connected to multiple pointed cones (8) along the cutter (6), and the multiple pointed cones (8) are spaced apart along the length direction of the arc-shaped plate (71).

7. The fruit bag opening and rolling cutting mechanism of the bag making machine according to claim 1, characterized in that: The base (1) is provided with two sets of guide mechanisms (5) relative to the support frame (2). The guide mechanism (5) includes two fixed plates (52) and two guide rollers (51). The two fixed plates (52) are symmetrically arranged on the base (1), and the two guide rollers (51) are rotatably arranged on the two fixed plates (52).

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