Edge cutting corner mechanism of plastic bag making machine

Abstract

The utility model relates to the technical field of plastic bag, the utility model provides an edge cutting angle mechanism of plastic bag making machine, it includes: frame, the bottom fixed connection of frame has foot cup, the top of frame is provided with the edge cutting positioning assembly, the edge cutting positioning assembly includes the support plate, the side fixed connection of support plate is in the side of frame, the top fixed connection of support plate has electric telescopic handle, the fixed connection of telescopic end of electric telescopic handle has cutter, the side of frame is provided with vibration decontamination subassembly, vibration decontamination subassembly includes belt, the belt sets up on the output shaft of motor, the motor is connected with the pivot through belt drive, through above technical scheme, solved the problem that cannot avoid the plastic bag in the cutting process because of the shaking or displacement in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of plastic bag technology, specifically to a corner trimming mechanism for a plastic bag making machine. Background Technology

[0002] The edge trimming mechanism of a plastic bag making machine is usually used to cut plastic film to ensure that the edges of the plastic bag are neat and smooth, and to adapt to bags of different sizes. It can effectively improve the working efficiency and product quality of the edge trimming mechanism of the plastic bag making machine.

[0003] According to the published information on the corner trimming mechanism of the square bottom plastic bag making machine (publication number: CN209381501U), it includes a frame, on which a pulling device, a corner trimming device, and a material receiving device are sequentially arranged. An anti-static brush is provided between the pulling device and the corner trimming device. The pulling device includes slide rails arranged on both sides of the frame and several pulling base plates arranged between the two slide rails. Each of the two slide rails is equipped with a slider.

[0004] The aforementioned method, which relies on the coordination of components such as the pulling device and the corner trimming device, is insufficient to prevent the plastic bag from shifting or moving during the cutting process, resulting in uneven cutting and reduced cutting accuracy. This requires further improvement. Utility Model Content

[0005] To overcome the above-mentioned defects, this utility model provides a corner trimming mechanism for a plastic bag making machine, which solves the problem that the plastic bag cannot avoid shaking or shifting during the cutting process in the prior art.

[0006] According to one aspect, at least one embodiment of the present invention provides a trimming mechanism for a plastic bag making machine, comprising: a machine base, a foot cup fixedly connected to the bottom of the machine base, a trimming positioning component provided on the top of the machine base, the trimming positioning component including a support plate, the side of the support plate fixedly connected to the side of the machine base, an electric telescopic rod fixedly connected to the top of the support plate, a cutter fixedly connected to the telescopic end of the electric telescopic rod, a support rod fixedly connected to the side of the machine base, a motor fixedly connected to one end of the support rod, a gear fixedly connected to the output shaft of the motor, a support frame fixedly connected to the side of the machine base, a rack slidably connected to the inner wall of the support frame, and a fixing plate fixedly connected to the side of the rack.

[0007] For example, in at least one embodiment of the present invention, the edge trimming mechanism of a plastic bag making machine further includes: the gear and rack meshing with each other; the machine base being located on the displacement trajectory of the fixed plate; a button being provided on the surface of the motor; and a control switch being provided on the side of the electric telescopic rod. The design of the control switch is conducive to directly driving the electric telescopic rod to extend and retract.

[0008] For example, in at least one embodiment of the present invention, a trimming mechanism for a plastic bag making machine further includes: a groove is provided on the inner wall of the support frame, a limiting rod is slidably connected to the inner wall of the groove, and the end of the limiting rod away from the groove is fixedly connected to the side of the rack. The design of the limiting rod is beneficial to restricting the movement trajectory of the rack.

[0009] For example, in at least one embodiment of the present invention, a corner trimming mechanism for a plastic bag making machine further includes: two fixed plates, a support frame, and a motor, which are symmetrical to each other along the vertical central axis of the machine base. The machine base is located on the displacement trajectory of the cutter, and the presence of the cutter facilitates simultaneous cutting from both sides.

[0010] For example, in at least one embodiment of the present invention, a cutting mechanism for a plastic bag making machine further includes: two cutters and two electric telescopic rods, which are symmetrical about each other along the vertical central axis of the machine base; and several foot cups, arranged in pairs, which are symmetrical about each other along the vertical central axis of the machine base. This design is conducive to cutting from both sides at the same time and to improving the cutting effect.

[0011] For example, in at least one embodiment of the present invention, a corner trimming mechanism for a plastic bag making machine further includes: a limiting rod rotatably connected to the side of the fixed plate, and a slot provided on the side of the support frame. The slot is located on the displacement trajectory of the limiting rod, and the design of the slot is beneficial for temporarily locking the position of the fixed plate.

[0012] According to another aspect, at least one embodiment of the present invention also provides a trimming mechanism for a plastic bag making machine, comprising: a vibration decontamination assembly provided on the side of the machine base, the vibration decontamination assembly including a belt, the belt being disposed on the output shaft of a motor, the motor being connected to a rotating shaft via belt drive, an L-shaped rod fixedly connected to the side of the support frame, one end of the rotating shaft being rotatably connected to the side of the L-shaped rod, a half gear fixedly connected to one end of the rotating shaft, a crossbar fixedly connected to the side of the machine base, a rack slidably connected to the top of the crossbar, a vibration rod fixedly connected to one end of the rack, the vibration rod striking the side of the cutter, thereby vibrating off the trimming residue on the cutter.

[0013] For example, in at least one embodiment of the present invention, the edge trimming mechanism of a plastic bag making machine further includes: the half gear and the rack two mesh with each other, the cutter is located on the displacement trajectory of the vibrating rod, and the rotating shaft is located on the side of the motor. This design is beneficial to drive the rack two to move when the half gear rotates.

[0014] For example, in at least one embodiment of the present invention, a trimming mechanism for a plastic bag making machine further includes: a spring fixedly connected to one end of the rack two, and the end of the spring away from the rack two fixedly connected to one end of the crossbar. The design of the spring is beneficial to the rack two being able to automatically reset when the rack two is not driven.

[0015] For example, in at least one embodiment of the present invention, a cutting mechanism for a plastic bag making machine further includes: a short rod fixedly connected to the side of the rack two, the end of the short rod away from the rack two being slidably connected to the side of the crossbar, and two vibration rods being provided, which is beneficial to make both cutters vibrate.

[0016] The beneficial effects of the embodiments of this utility model are as follows: In this invention, the electric telescopic rod, fixing plate, and blade within the edge-cutting positioning assembly work together to control the up-and-down extension of the cutter via the electric telescopic rod. This allows for precise adjustment of the cutting position, ensuring neat edges and corners of the plastic bag. Furthermore, by activating the motor via a button, the gears and rack work together to push the fixing plate, pressing the plastic bag down and maintaining its stable position. This improves cutting accuracy. The fixing plate effectively holds the plastic bag down, preventing uneven cutting caused by shaking or shifting during the cutting process, ensuring consistent quality standards for every cut.

[0017] In this invention, the vibration cleaning component utilizes the interplay of components such as the vibrating rod, half-gear, and belt to effectively dislodge residual trimming debris from the cutter by moving the vibrating rod. This prevents the accumulation of dirt and debris, keeping the cutter clean, extending its lifespan, and ensuring a smooth cutting process. It also reduces uneven or unclean cuts caused by debris, thereby improving the quality of the finished product. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0019] Figure 1 This is a three-dimensional appearance structure diagram of one embodiment of the present invention; Figure 2 This is a three-dimensional side view of the blade structure in one embodiment of the present invention; Figure 3 As one embodiment of this utility model Figure 2 A three-dimensional magnified structural diagram of A in the middle; Figure 4 This is a three-dimensional cross-sectional view of the support frame in one embodiment of the present invention; Figure 5 As one embodiment of this utility model Figure 4 A three-dimensional magnified structural diagram of B.

[0020] In the diagram: 1. Base; 2. Foot cup; 3. Trimming positioning assembly; 31. Support plate; 32. Electric telescopic rod; 33. Control switch; 34. Cutter; 35. Support rod; 36. Motor; 37. Button; 38. Support frame; 39. Gear; 310. Rack one; 311. Fixing plate; 312. Slide groove; 313. Limiting rod; 314. Slot; 315. Limiting rod; 4. Vibration cleaning assembly; 41. Belt; 42. Rotating shaft; 43. L-shaped rod; 44. Half gear; 45. Crossbar; 46. Rack two; 47. Vibration rod; 48. Spring. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0022] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0023] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] like Figures 1-5 As shown, this invention illustrates a trimming mechanism for a plastic bag making machine according to an embodiment of the present invention, comprising: a base 1, a foot cup 2 fixedly connected to the bottom of the base 1, a trimming positioning component 3 provided on the top of the base 1, the trimming positioning component 3 including a support plate 31, the side of the support plate 31 fixedly connected to the side of the base 1, an electric telescopic rod 32 fixedly connected to the top of the support plate 31, a cutter 34 fixedly connected to the telescopic end of the electric telescopic rod 32, a support rod 35 fixedly connected to the side of the base 1, a motor 36 fixedly connected to one end of the support rod 35, a gear 39 fixedly connected to the output shaft of the motor 36, a support frame 38 fixedly connected to the side of the base 1, a rack 310 slidably connected to the inner wall of the support frame 38, and a fixing plate 311 fixedly connected to the side of the rack 310.

[0028] In some examples, gear 39 and rack 310 mesh with each other, the base 1 is located on the displacement trajectory of the fixed plate 311, the surface of motor 36 is provided with button 37, and the side of electric telescopic rod 32 is provided with control switch 33. The design of control switch 33 is conducive to directly driving electric telescopic rod 32 to extend and retract.

[0029] In some examples, a groove 312 is provided on the inner wall of the support frame 38, and a limit rod 313 is slidably connected on the inner wall of the groove 312. The end of the limit rod 313 away from the groove 312 is fixedly connected to the side of the rack 310. The design of the limit rod 313 is beneficial to restrict the movement trajectory of the rack 310.

[0030] In some examples, there are two fixed plates 311, support frames 38, and motors 36, which are symmetrical to each other along the vertical central axis of the base 1. The base 1 is located on the displacement trajectory of the cutter 34, and the presence of the cutter 34 facilitates simultaneous cutting from both sides.

[0031] In some examples, there are two cutters 34 and two electric telescopic rods 32, which are symmetrical to each other along the vertical central axis of the machine base 1. There are several foot cups 2, which are arranged in pairs and are symmetrical to each other along the vertical central axis of the machine base 1. This design is conducive to cutting from both sides at the same time and improves the trimming effect.

[0032] In some examples, the side of the fixed plate 311 is rotatably connected to a limiting rod 315, and the side of the support frame 38 is provided with a slot 314. The slot 314 is located on the displacement trajectory of the limiting rod 315. The design of the slot 314 is beneficial for temporarily locking the position of the fixed plate 311.

[0033] For example, such as Figures 1-5As shown, a plastic bag is placed on top of the machine base 1. The control switch 33 and the electric telescopic rod 32 are electrically connected. The control switch 33 operates the electric telescopic rod 32, causing its telescopic end to extend and retract vertically. This vertical extension and retraction of the electric telescopic rod 32 drives the cutter 34 to extend and retract, trimming the edges of the plastic bag. There are two cutters 34, located at both ends of the top of the machine base 1. The edge of the plastic bag to be cut is aligned with the cutter. 34. Place the cutting rod 34 at the bottom of the cutter 34, press the control switch 33, and move the telescopic end of the electric telescopic rod 32 downwards, causing the cutter 34 to move downwards. Use the cutter 34 to cut the edges of the plastic bag. To improve the cutting accuracy, press button 37 to start the motor 36. The motor 36 rotates forward, which drives the gear 39 to rotate forward. The gear 39 and rack 310 mesh with each other. When the gear 39 rotates forward, it drives the rack 310 to move downwards. The fixed plate 311 will move downwards. The fixed plate 311 is located on the top of the machine base 1, and the machine base 1 is located on the movement trajectory of the fixed plate 311. When the fixed plate 311 moves downwards, it will move towards the top of the machine base 1. At this time, the plastic bag is located on the top of the machine base 1. When the fixed plate 311 moves downwards, it will press down on the middle position of the plastic bag from top to bottom for fixation. Two fixed plates 311 are provided to improve the fixing effect. The electric telescopic rod 32 controls the up and down extension and retraction of the cutter 34, which can accurately adjust the cutting position to ensure that the edges and corners of the plastic bag are cut neatly. Furthermore, the motor 36 is started by the button 37, so that the gear 39 and the rack 310 work together to push the fixed plate 311 to press down on the plastic bag and maintain its stable position, thereby improving the cutting accuracy. The fixed plate 311 can effectively press down on the plastic bag to avoid uneven cutting caused by shaking or displacement of the plastic bag during the cutting process, ensuring that each cut achieves a consistent quality standard.

[0034] like Figures 1-5 As shown, this invention illustrates a trimming mechanism for a plastic bag making machine in another embodiment, comprising: a vibration decontamination assembly 4 disposed on the side of the machine base 1, the vibration decontamination assembly 4 including a belt 41 disposed on the output shaft of a motor 36, the motor 36 being driven by a rotating shaft 42 via the belt 41, an L-shaped rod 43 fixedly connected to the side of a support frame 38, one end of the rotating shaft 42 being rotatably connected to the side of the L-shaped rod 43, a half gear 44 fixedly connected to one end of the rotating shaft 42, a crossbar 45 fixedly connected to the side of the machine base 1, a rack 46 slidably connected to the top of the crossbar 45, a vibration rod 47 fixedly connected to one end of the rack 46, the vibration rod 47 striking the side of the cutter 34, thereby vibrating off the trimming residue on the cutter 34. In some examples, the half gear 44 and the rack 46 mesh with each other, the cutter 34 is located on the displacement trajectory of the vibrating rod 47, and the rotating shaft 42 is located on the side of the motor 36. This design is beneficial to drive the rack 46 to move when the half gear 44 rotates.

[0035] In some examples, a spring 48 is fixedly connected to one end of rack 46, and the end of spring 48 away from rack 46 is fixedly connected to one end of crossbar 45. The design of spring 48 is to allow rack 46 to automatically reset when it is not being driven.

[0036] In some examples, a short rod is fixedly connected to the side of rack 2 46, and the end of the short rod away from rack 2 46 is slidably connected to the side of crossbar 45. Two vibration rods 47 are provided, which is beneficial to make both cutters 34 vibrate.

[0037] For example, such as Figures 1-5 As shown, the rotation of the motor 36 drives the belt 41 to rotate forward, which in turn drives the half gear 44 to rotate forward. The upper teeth of the half gear 44 mesh with the rack 46. When the half gear 44 rotates, it drives the rack 46 to move. The movement of the rack 46 pulls the spring 48, and the movement of the rack 46 drives the vibrating rod 47 to move closer to the cutter 34. The cutter 34 and the electric telescopic rod 32 are located on the movement trajectory of the vibrating rod 47. When the vibrating rod 47... During movement, the cutter 34 and the electric telescopic rod 32 are struck to vibrate down any remaining scraps from the cutter 34, preventing dirt from remaining on the cutter 34. The movement of the vibrating rod 47 effectively shakes off any remaining scraps from the cutter 34, avoiding the accumulation of dirt and debris, thus keeping the cutter 34 clean, extending its service life, and ensuring a clean surface. This also ensures smooth cutting, reduces uneven or unclean cutting caused by debris, and improves the quality of the finished product.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A corner trimming mechanism for a plastic bag making machine, characterized in that, include: A base (1) is fixedly connected to a foot cup (2) at the bottom of the base (1), and a trimming positioning component (3) is provided on the top of the base (1). The trimming positioning component (3) includes a support plate (31), the side of the support plate (31) is fixedly connected to the side of the machine base (1), the top of the support plate (31) is fixedly connected to an electric telescopic rod (32), the telescopic end of the electric telescopic rod (32) is fixedly connected to a cutter (34), the side of the machine base (1) is fixedly connected to a support rod (35), one end of the support rod (35) is fixedly connected to a motor (36), the output shaft of the motor (36) is fixedly connected to a gear (39), the side of the machine base (1) is fixedly connected to a support frame (38), the inner wall of the support frame (38) is slidably connected to a rack (310), and the side of the rack (310) is fixedly connected to a fixing plate (311).

2. The corner trimming mechanism of a plastic bag making machine according to claim 1, characterized in that, The gear (39) and rack (310) mesh with each other, the base (1) is located on the displacement trajectory of the fixed plate (311), the surface of the motor (36) is provided with a button (37), and the side of the electric telescopic rod (32) is provided with a control switch (33).

3. The corner trimming mechanism of a plastic bag making machine according to claim 2, characterized in that, The inner wall of the support frame (38) is provided with a sliding groove (312), and a limiting rod (313) is slidably connected to the inner wall of the sliding groove (312). The end of the limiting rod (313) away from the sliding groove (312) is fixedly connected to the side of the rack (310).

4. The corner trimming mechanism of a plastic bag making machine according to claim 3, characterized in that, There are two fixed plates (311), support frames (38), and motors (36), which are symmetrical to each other along the vertical central axis of the base (1). The base (1) is located on the displacement trajectory of the cutter (34).

5. The corner trimming mechanism of a plastic bag making machine according to claim 4, characterized in that, Two cutters (34) and two electric telescopic rods (32) are provided and are symmetrical to each other along the vertical central axis of the base (1). Several foot cups (2) are provided, in pairs and are symmetrical to each other along the vertical central axis of the base (1).

6. The corner trimming mechanism of a plastic bag making machine according to claim 5, characterized in that, The side of the fixed plate (311) is rotatably connected to a limiting rod (315), and the side of the support frame (38) is provided with a slot (314), which is located on the displacement trajectory of the limiting rod (315).

7. The corner trimming mechanism of a plastic bag making machine according to claim 6, characterized in that, The side of the base (1) is provided with a vibration cleaning component (4), which includes a belt (41). The belt (41) is mounted on the output shaft of the motor (36). The motor (36) is connected to a rotating shaft (42) via the belt (41). An L-shaped rod (43) is fixedly connected to the side of the support frame (38). One end of the rotating shaft (42) is rotatably connected to the side of the L-shaped rod (43). A half gear (44) is fixedly connected to one end of the rotating shaft (42). A crossbar (45) is fixedly connected to the side of the base (1). A rack (46) is slidably connected to the top of the crossbar (45). A vibration rod (47) is fixedly connected to one end of the rack (46).

8. The corner trimming mechanism of a plastic bag making machine according to claim 7, characterized in that, The half gear (44) and rack two (46) mesh with each other, the cutter (34) is located on the displacement trajectory of the vibrating rod (47), and the rotating shaft (42) is located on the side of the motor (36).

9. The corner trimming mechanism of a plastic bag making machine according to claim 8, characterized in that, A spring (48) is fixedly connected to one end of the rack (46), and the end of the spring (48) away from the rack (46) is fixedly connected to one end of the crossbar (45).

10. The corner trimming mechanism of a plastic bag making machine according to claim 9, characterized in that, A short rod is fixedly connected to the side of the rack 2 (46), and the end of the short rod away from the rack 2 (46) is slidably connected to the side of the crossbar (45). Two vibration rods (47) are provided.

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