A new type of film blowing machine for plastic casing production

Abstract

The disclosure relates to the technical field of plastic casing production equipment, and provides a novel film blowing machine for plastic casing production. The film blowing machine comprises a base, an extrusion assembly body is fixedly installed at the left side of the top end of the base, a hopper is fixedly installed at the left part of the top rear side of the extrusion assembly body, and a swing plate is movably sleeved at the middle part of the inner bottom end of the hopper. The swing plate, the linkage shaft, the rotating rod, the short rod and the disc are arranged. When the first motor is started, the rotating shaft drives the short rod to rotate through the disc. Since the short rod is movably sleeved on the inner surface of the rotating rod, under the action of the disc, the outer surface of the short rod generates a thrust on the inner surface of the rotating rod, and the rotating rod drives the linkage shaft and the swing plate to rotate around the linkage shaft as the axis. In this way, the back-and-forth swinging of the swing plate can be realized through the continuous rotation of the disc, and the technical problem that the raw materials are prone to blockage in the prior art is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of plastic sausage casing production equipment, and more specifically, to a novel blown film machine for producing plastic sausage casings. Background Technology

[0002] Plastic casings are an important material in the food packaging industry, widely used in the processing and preservation of meat products such as sausages and hams. They are made primarily of plastic through specific processes and have multiple functions, including protecting food, extending shelf life, and enhancing product appearance. They are mainly divided into polyethylene (PE) casings, polypropylene (PP) casings, polyamide (PA, nylon) casings, polyvinyl chloride (PVC) casings, and co-extruded composite casings.

[0003] In the production and processing of plastic sausage casings, a blown film machine is needed to transform plastic raw materials into continuous tubular films, thereby completing the casing formation. However, existing blown film machines still have shortcomings in actual use. When melting and extruding raw materials, existing blown film machines mainly rely on a funnel to add the raw materials into the machine. Due to the special structure of the funnel, which is wider at the top and narrower at the bottom, the raw materials are prone to accumulate and blockage at the bottom of the funnel, and may even fail to feed, causing interruptions in feeding and affecting the normal production of plastic sausage casings. Therefore, improvements are needed. Utility Model Content

[0004] To overcome the above-mentioned defects, embodiments of this disclosure provide a novel blown film machine for the production of plastic sausage casings, which solves the technical problem of easy clogging of raw materials in the prior art.

[0005] According to one aspect, at least one embodiment of this disclosure provides a novel blown film machine for producing plastic sausage casings, comprising a base, an extrusion assembly body fixedly mounted on the left side of the top of the base, a funnel fixedly mounted on the left side of the rear side of the top of the extrusion assembly body, a swing plate movably sleeved at the middle of the bottom of the funnel, a linkage shaft fixedly sleeved inside the top of the swing plate, the rear end of the linkage shaft penetrating the funnel and extending to the outside of the funnel and fixedly sleeved with a rotating rod, the outer surface of the rotating rod being movably connected to the outer surface of the funnel, a short rod movably sleeved at the lower middle of the inside of the rotating rod, a disc fixedly sleeved on the rear side of the outer surface of the short rod, the front end of the disc being movably connected to the rear end of the rotating rod, a first motor fixedly mounted at the bottom of the rear end of the funnel, a rotating shaft sleeved at the other end of the output shaft of the first motor, the front side of the outer surface of the rotating shaft being fixedly sleeved to the inner surface of the middle end of the disc.

[0006] As a preferred embodiment of this utility model, a blown film assembly body is fixedly installed on the right end of the extrusion assembly body, the bottom end of the blown film assembly body is fixedly connected to the top end of the base, a guide frame is fixedly installed on the rear part of the right side of the top end of the base, and a controller is fixedly installed on the front part of the left side of the top end of the base.

[0007] As a preferred embodiment of this utility model, a rotating roller is movably installed on the front side of the middle right end of the base, and a circular plate is fixedly sleeved on the left side of the outer surface of the rotating roller.

[0008] As a preferred embodiment of this utility model, a fixing plate is fixedly installed on the rear side of the middle right end of the base, and limit rods are respectively fixedly sleeved on the upper and lower ends of the front right end of the fixing plate.

[0009] As a preferred embodiment of this utility model, a movable block is movably sleeved on the right side of the outer surface of the limiting rod, the rear side of the right end of the movable block is movably connected to the left end of the fixed plate, and a baffle is hinged to the front side of the right end of the movable block.

[0010] As a preferred technical solution of this utility model, a second motor is fixedly installed on the front side of the middle right end of the fixed plate, and a threaded rod is fixedly sleeved on the other end of the output shaft of the second motor. The left end of the threaded rod passes through the fixed plate and the movable block and extends to the outside of the movable block. The outer surface of the threaded rod and the inner surface of the middle end of the movable block are threadedly sleeved.

[0011] As a preferred technical solution of this utility model, the upper and lower sides of the front end of the movable block are respectively provided with slots, and a locking rod is movably sleeved inside the slot. The front end of the locking rod passes through the baffle and extends into the interior of the baffle.

[0012] As a preferred embodiment of this utility model, a connecting block is fixedly installed at the front end of the lever, the outer surface of the connecting block and the inner surface of the baffle are movably sleeved together, a limiting plate is movably sleeved inside the middle end of the connecting block, and the outer surface of the limiting plate and the inner surface of the baffle are fixedly sleeved together.

[0013] As a preferred embodiment of this utility model, springs are fixedly installed on the upper and lower sides of the front end of the connecting block, and the other end of the springs is fixedly connected to the inner surface of the baffle.

[0014] As a preferred embodiment of this utility model, a handle is fixedly installed on the top of the connecting block, the outer surface of the handle is movably sleeved with the inner surface of the top of the baffle, a cover plate is fixedly sleeved on the outer surface of the handle, and the bottom end of the cover plate is movably connected with the top end of the baffle.

[0015] The beneficial effects of the embodiments disclosed herein are as follows: 1. In this disclosure, by setting up a swing plate, a linkage shaft, a rotating rod, a short rod, and a disc, when the first motor starts, the rotating shaft will drive the short rod to rotate through the disc. Since the short rod is movably sleeved on the inner surface of the rotating rod, under the action of the disc, the outer surface of the short rod will generate a thrust on the inner surface of the rotating rod, pushing the rotating rod to rotate around the linkage shaft and the swing plate. In this way, the swing plate can be made to swing back and forth by the continuous rotation of the disc, thereby preventing the raw material from clogging at the bottom of the funnel and ensuring the normal feeding process.

[0016] 2. In this disclosure, by setting a slot, a lever, a connecting block, a spring, and a handle, when the handle is pushed, the connecting block will move along the inner surface of the baffle and compress the spring, thereby causing the lever, which is fixedly connected to the connecting block, to move along with it, thus separating the lever from the slot. Since the movable block and the baffle are hinged, when the baffle is turned, it can be rotated open, thereby facilitating the taking out of the roll and improving the convenience of using the blown film machine. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present disclosure; Figure 2 for Figure 1 A schematic cross-sectional view of the rear side in the embodiment; Figure 3 for Figure 1 A cross-sectional view of the swing plate in the embodiment; Figure 4 for Figure 1 A cross-sectional structural schematic diagram of the baffle in the embodiment; Figure 5 for Figure 3 A magnified schematic diagram of the local structure at point A; Figure 6 for Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0019] In the diagram: 1. Base; 2. Extrusion assembly body; 3. Funnel; 4. Swing plate; 5. Linkage shaft; 6. Rotating rod; 7. Short rod; 8. Disc; 9. First motor; 10. Rotating shaft; 11. Blown film assembly body; 12. Material guide frame; 13. Controller; 14. Rotating roller; 15. Circular plate; 16. Fixing plate; 17. Limiting rod; 18. Movable block; 19. Baffle; 20. Second motor; 21. Threaded rod; 22. Slot; 23. Locking rod; 24. Connecting block; 25. Limiting plate; 26. Spring; 27. Handle; 28. Cover plate. Detailed Implementation The present disclosure 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 disclosure and are not intended to limit the scope of the disclosure.

[0020] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0021] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" 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 disclosure based on the specific circumstances.

[0022] In this disclosure, unless otherwise expressly 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.

[0023] 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 disclosure.

[0024] 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.

[0025] like Figures 1 to 6 As shown, a novel blown film machine for producing plastic sausage casings according to an embodiment of the present disclosure is illustrated. It includes a base 1, an extrusion assembly body 2 fixedly mounted on the left side of the top of the base 1, a funnel 3 fixedly mounted on the left side of the rear side of the top of the extrusion assembly body 2, a swing plate 4 movably sleeved at the middle of the bottom of the funnel 3, a linkage shaft 5 fixedly sleeved inside the top of the swing plate 4, the rear end of the linkage shaft 5 penetrating the funnel 3 and extending to the outside of the funnel 3 and fixedly sleeved with a rotating rod 6, the outer surface of the rotating rod 6 movably connected to the outer surface of the funnel 3, a short rod 7 movably sleeved at the lower middle of the inside of the rotating rod 6, a disc 8 fixedly sleeved on the rear side of the outer surface of the short rod 7, the front end of the disc 8 movably connected to the rear end of the rotating rod 6, a first motor 9 fixedly mounted at the bottom of the rear end of the funnel 3, a rotating shaft 10 sleeved at the other end of the output shaft of the first motor 9, and the front side of the outer surface of the rotating shaft 10 fixedly sleeved to the inner surface of the middle of the disc 8.

[0026] The inner surface of the funnel 3 and the outer surface of the swing plate 4 are both smooth, which ensures that the swing plate 4 will not get stuck when it rotates inside the funnel 3. At the same time, the length of the groove inside the rotating rod 6 is greater than the diameter of the disc 8, which ensures that the disc 8 can rotate normally with the short rod 7. In addition, the center line of the swing plate 4 and the linkage shaft 5 are on the same plane, which ensures that the swing plate 4 and the rotating rod 6 can rotate synchronously with the linkage shaft 5 as the axis.

[0027] In some examples, the extrusion assembly body 2 is fixedly mounted on the right end of the blown film assembly body 11, the bottom end of the blown film assembly body 11 is fixedly connected to the top end of the base 1, the rear part of the right side of the top end of the base 1 is fixedly mounted on the material guide 12, and the front part of the left side of the top end of the base 1 is fixedly mounted on the controller 13.

[0028] When the raw material enters the extrusion assembly body 2 through the funnel 3, it will be heated to a molten state by the extrusion assembly body 2 and extruded through the die of the extrusion assembly body 2 to form a continuous tubular preform. Then it enters the blown film assembly body 11 and is blown to the required diameter under the action of the blown film assembly body 11 to complete the molding of the plastic casing. The molded plastic casing will be guided by the guide frame 12 and then pulled and wound by the winding drum.

[0029] In some examples, a rotating roller 14 is movably mounted on the front side of the middle right end of the base 1, and a circular plate 15 is fixedly sleeved on the left side of the outer surface of the rotating roller 14.

[0030] The upper and lower ends of the outer surface of the roller 14 are provided with strip-shaped protrusions, which facilitates the rotation of the roller 14 with the take-up drum.

[0031] In some examples, a fixing plate 16 is fixedly installed on the rear side of the middle right end of the base 1, and the upper and lower ends of the front right end of the fixing plate 16 are respectively fixedly sleeved with limit rods 17.

[0032] The fixed plate 16 serves to provide support and fixation, while the limiting rod 17 is used for auxiliary limiting.

[0033] In some examples, a movable block 18 is movably sleeved on the right side of the outer surface of the limiting rod 17, the rear side of the right end of the movable block 18 is movably connected to the left end of the fixed plate 16, and a baffle 19 is hinged to the front side of the right end of the movable block 18.

[0034] The inner surface of the movable block 18 and the outer surface of the limiting rod 17 are both smooth, thus ensuring that the movable block 18 will not get stuck when it moves along the outer surface of the limiting rod 17 with the baffle 19.

[0035] In some examples, a second motor 20 is fixedly installed on the front side of the middle right end of the fixed plate 16, and a threaded rod 21 is fixedly sleeved on the other end of the output shaft of the second motor 20. The left end of the threaded rod 21 passes through the fixed plate 16 and the movable block 18 and extends to the outside of the movable block 18. The outer surface of the threaded rod 21 and the inner surface of the middle end of the movable block 18 are threadedly sleeved.

[0036] Under the action of the second motor 20 and the threaded rod 21, the movable block 18 will move towards the circular plate 15 with the baffle 19, thereby cooperating with the circular plate 15 to block and limit the winding drum.

[0037] In some examples, slots 22 are provided on the upper and lower sides of the front end of the movable block 18, and a locking rod 23 is movably sleeved inside the slot 22. The front end of the locking rod 23 passes through the baffle 19 and extends into the interior of the baffle 19.

[0038] There are two slots 22 and two levers 23, and they are all the same in shape and size. The arrangement of two slots 22 and two levers 23 can ensure the stability of the connection between the movable block 18 and the baffle 19.

[0039] In some examples, a connecting block 24 is fixedly installed at the front end of the lever 23. The outer surface of the connecting block 24 is movably sleeved with the inner surface of the baffle 19. A limiting plate 25 is movably sleeved inside the middle end of the connecting block 24. The outer surface of the limiting plate 25 is fixedly sleeved with the inner surface of the baffle 19.

[0040] The presence of the limiting plate 25 will limit the movement of the connecting block 24, thereby ensuring the stability of the movement of the connecting block 24.

[0041] In some examples, springs 26 are fixedly installed on the upper and lower sides of the front end of the connecting block 24, and the other end of the springs 26 is fixedly connected to the inner surface of the baffle 19.

[0042] There are two springs 26, which are symmetrical about the center of the connecting block 24. The symmetrical springs 26 can ensure the uniformity of the force on the upper and lower sides of the front end of the connecting block 24.

[0043] In some examples, a handle 27 is fixedly installed on the top of the connecting block 24, the outer surface of the handle 27 is movably sleeved with the inner surface of the top of the baffle 19, and a cover plate 28 is fixedly sleeved on the outer surface of the handle 27, the bottom end of the cover plate 28 is movably connected with the top of the baffle 19.

[0044] The presence of the cover plate 28 will protect the spring 26, thereby preventing impurities from entering and affecting the normal deformation of the spring 26.

[0045] Working principle and usage process of this utility model: In use, the operator first pushes the handle 27, causing the handle 27 to move along the outer surface of the limiting plate 25 with the connecting block 24 and compress the spring 26. This causes the locking rod 23 to move together with the connecting block 24 and separate from the slot 22, releasing the locking rod 23 from locking the movable block 18 and the baffle 19. At this time, the baffle 19 can be rotated open, and the operator can then place the take-up drum into the aligned roller 14. After the take-up drum is placed, the operator resets the baffle 19 and releases the handle 27. At this time, under the restoring action of the spring 26, the connecting block 24 and the locking rod 23 will return to their original position and embed into the slot 22, thereby relocking the movable block 18 and the baffle 19. Then, the operator starts the second motor 20, causing the threaded rod 21 to rotate, which causes the movable block 18, which is threadedly connected to the threaded rod 21, to move along the baffle 19 towards the circular plate 15, thereby cooperating with the circular plate 15 to block and limit the take-up drum.

[0046] Then, the operator can pour the raw material into the funnel 3. At the same time, the operator starts the first motor 9, which causes the rotating shaft 10 to drive the disc 8 and the short rod 7 to rotate. This causes the short rod 7 to generate a thrust on the rotating rod 6, which pushes the rotating rod 6 to rotate the swing plate 4 through the linkage shaft 5. In this way, the continuous rotation of the disc 8 can make the swing plate 4 swing back and forth in a small range, thereby clearing the funnel 3 and preventing the raw material from clogging the bottom of the funnel 3.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure 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 solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A novel blown film machine for producing plastic sausage casings, comprising a base (1), characterized in that: An extrusion assembly body (2) is fixedly installed on the left side of the top of the base (1). A funnel (3) is fixedly installed on the left side of the rear side of the top of the extrusion assembly body (2). A swing plate (4) is movably sleeved in the middle of the bottom of the funnel (3). A linkage shaft (5) is fixedly sleeved inside the top of the swing plate (4). The rear end of the linkage shaft (5) passes through the funnel (3) and extends to the outside of the funnel (3) and is fixedly sleeved with a rotating rod (6). The outer surface of the rotating rod (6) and the funnel ( 3) The outer surface is movably connected, and a short rod (7) is movably sleeved in the lower middle part of the inside of the rotating rod (6). A disc (8) is fixedly sleeved on the rear side of the outer surface of the short rod (7). The front end of the disc (8) is movably connected to the rear end of the rotating rod (6). A first motor (9) is fixedly installed at the bottom of the rear end of the funnel (3). A rotating shaft (10) is sleeved on the other end of the output shaft of the first motor (9). The front side of the outer surface of the rotating shaft (10) is fixedly sleeved on the inner surface of the middle end of the disc (8).

2. The novel blown film machine for producing plastic sausage casings according to claim 1, characterized in that: The extrusion assembly body (2) is fixedly installed with a blown film assembly body (11) at the right end. The bottom end of the blown film assembly body (11) is fixedly connected to the top end of the base (1). A guide frame (12) is fixedly installed on the rear part of the right side of the top end of the base (1). A controller (13) is fixedly installed on the front part of the left side of the top end of the base (1).

3. The novel blown film machine for producing plastic sausage casings according to claim 1, characterized in that: A rotating roller (14) is movably installed on the front side of the middle right end of the base (1), and a circular plate (15) is fixedly sleeved on the left side of the outer surface of the rotating roller (14).

4. The novel blown film machine for producing plastic sausage casings according to claim 1, characterized in that: A fixing plate (16) is fixedly installed on the rear side of the middle right end of the base (1), and a limit rod (17) is fixedly sleeved on the upper and lower ends of the front right end of the fixing plate (16).

5. A novel blown film machine for producing plastic sausage casings according to claim 4, characterized in that: A movable block (18) is movably sleeved on the right side of the outer surface of the limiting rod (17). The rear side of the right end of the movable block (18) is movably connected to the left end of the fixed plate (16). A baffle (19) is hinged to the front side of the right end of the movable block (18).

6. A novel blown film machine for producing plastic sausage casings according to claim 4, characterized in that: A second motor (20) is fixedly installed on the front side of the middle right end of the fixed plate (16). A threaded rod (21) is fixedly sleeved on the other end of the output shaft of the second motor (20). The left end of the threaded rod (21) passes through the fixed plate (16) and the movable block (18) and extends to the outside of the movable block (18). The outer surface of the threaded rod (21) and the inner surface of the middle end of the movable block (18) are threaded together.

7. A novel blown film machine for producing plastic sausage casings according to claim 5, characterized in that: The upper and lower sides of the front end of the movable block (18) are respectively provided with slots (22), and a locking rod (23) is movably sleeved inside the slot (22). The front end of the locking rod (23) passes through the baffle (19) and extends into the interior of the baffle (19).

8. A novel blown film machine for producing plastic sausage casings according to claim 7, characterized in that: A connecting block (24) is fixedly installed at the front end of the lever (23). The outer surface of the connecting block (24) and the inner surface of the baffle (19) are movably connected. A limiting plate (25) is movably connected inside the middle end of the connecting block (24). The outer surface of the limiting plate (25) and the inner surface of the baffle (19) are fixedly connected.

9. A novel blown film machine for producing plastic sausage casings according to claim 8, characterized in that: Springs (26) are fixedly installed on the upper and lower sides of the front end of the connecting block (24), and the other end of the spring (26) is fixedly connected to the inner surface of the baffle (19).

10. A novel blown film machine for producing plastic sausage casings according to claim 8, characterized in that: A handle (27) is fixedly installed on the top of the connecting block (24). The outer surface of the handle (27) and the inner surface of the top of the baffle (19) are movably connected. A cover plate (28) is fixedly connected to the outer surface of the handle (27). The bottom end of the cover plate (28) and the top end of the baffle (19) are movably connected.

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