Heating type plastic film packaging machine

Abstract

The invention discloses a heating type plastic film packaging machine, and belongs to the technical field of film packaging machines, the heating type plastic film packaging machine comprises a workbench, a clamping mechanism is arranged on the workbench, a heating mechanism and a rotating mechanism are connected to the clamping mechanism, a product is rotatably clamped in the heating mechanism and the rotating mechanism, a support is rotatably arranged at the bottom of the product, and a heating mechanism is arranged on the support. A thin film body is further arranged on the workbench, and one end of the thin film body is wound on a product. Through cooperative work of the clamping mechanism, the rotating mechanism, the heating mechanism and the like, automatic operation from clamping, rotating winding to heating attaching is achieved, manual intervention is reduced, the packaging efficiency is greatly improved, multi-face heating of a product body, the upper end and the lower end is achieved through cooperation of a heating fan cover and a heating air pipe, and continuous heating in the film winding process is combined, so that the packaging efficiency is improved. The thin film is tightly attached to a product, the tightness and integrity of packaging are ensured, and the packaging quality is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of film packaging machines, and in particular relates to a heating type plastic film packaging machine. Background Art

[0002] In the field of product packaging, plastic film packaging is widely used in packaging scenarios for various products such as food, daily necessities, and industrial parts due to its low cost, convenient operation, and good protection. Traditional plastic film packaging machines usually use mechanical winding methods to drive the film to rotate around the product through transmission rollers or pulleys to achieve the film wrapping of the product's outer surface.

[0003] For example, a film wrapping packaging machine disclosed in the patent with announcement number CN220536019U includes a machine base, a film fixing structure is provided on the front of the upper end face of the machine base, a rotating winding structure passes through the center of the lower end face, and the packaging fixing structure is half surrounded by the rotating winding structure. Compared with the existing technology, the advantage of this invention is that: by manually rotating the rotating rod to drive the threaded rod to rotate, the fixed plate and the rotating seat fix the goods, the force for fixing the goods can be better controlled to avoid damage to the goods. The setting of the limit hole and the card block can be used with the threaded rod to adjust the distance between the fixed plate and the rotating seat, which can make it more convenient to package different goods and increase the scope of application.

[0004] The problem with the existing technology is that the film height of the above-mentioned film packaging machine often corresponds to the height of the product. This design means that the film can only cover the outer surface of the product during the winding process, which just matches the height range of the product. Therefore, its packaging effect is only limited to winding around the outer surface of the product, resulting in poor tightness at both ends of the product and poor packaging integrity. Summary of the Invention

[0005] In response to the problems existing in the prior art, the present invention provides a heated plastic film packaging machine, which has the advantages of multi-sided heating and laminating, and improves the tightness and integrity of product packaging. It solves the problem that the packaging effect of existing equipment is limited to wrapping around the outer surface of the product, resulting in poor tightness at both ends of the product and poor packaging integrity.

[0006] The present invention is implemented as follows: a heated plastic film packaging machine includes a workbench, a clamping mechanism is provided on the workbench, a heating mechanism and a rotating mechanism are connected to the clamping mechanism, the heating mechanism and the rotating mechanism rotate and clamp the product internally, a support is provided for rotation at the bottom of the product, and a film body is also provided on the workbench, one end of the film body is wrapped around the product.

[0007] As a preferred embodiment of the present invention, the clamping mechanism includes a fixed frame, a bidirectional screw and a sliding rod are installed on the fixed frame, one end of the bidirectional screw is fixedly connected to the output end of the clamping motor, the clamping motor is fixedly installed on the fixed frame, a movable block is threadedly connected to the bidirectional screw, the movable block is slidably mounted on the sliding rod, and a support arm is fixedly connected to one side of the movable block.

[0008] As a preferred embodiment of the present invention, the rotating mechanism and the heating mechanism respectively include a second arc frame and a first arc frame, the second arc frame and the first arc frame are respectively fixedly connected to two support arms, and the second arc frame and the first arc frame are respectively rotatably installed with a driving roller and a transmission roller.

[0009] As a preferred embodiment of the present invention, a rotating motor is fixedly installed on the upper end of the second arc frame, and the output end of the rotating motor is connected to the driving roller through a transmission belt. An arc-shaped baffle matching its curvature is fixedly connected to the upper end of the second arc frame, and the transmission belt is rotatably arranged along the outer circumference of the arc baffle.

[0010] As a preferred embodiment of the present invention, a heating hood is fixedly connected to the interior of the first arc-shaped frame, and a hot air blower is provided on the outside of the first arc-shaped frame, with one end of the hot air blower being connected to the interior of the heating hood.

[0011] As a preferred embodiment of the present invention, both upper and lower ends of the outer side of the first arc-shaped frame are fixedly connected to mounting plates, and an electric push rod is fixedly installed on the mounting plate.

[0012] As a preferred embodiment of the present invention, the output end of the electric push rod is fixedly connected to a heating air duct, the heating air duct is connected to a hot air blower through an air duct, and a film pressing ball is provided at the end of the heating air duct.

[0013] As a preferred embodiment of the present invention, an L-shaped connecting rod is fixedly connected to the heating air duct, and a vertically arranged cutting mechanism is fixedly connected to the L-shaped connecting rod.

[0014] As a preferred embodiment of the present invention, the cutting mechanism is configured as a thermal cutting knife.

[0015] As a preferred embodiment of the present invention, the cutting mechanism includes a fixed seat, which is fixedly connected to the L-shaped connecting rod, and a first roller and a second roller are rotatably connected to the fixed seat, the first roller and the second roller are in contact with each other, and the plane formed by the axis lines of the first roller and the second roller is perpendicular to the cross-section of the first arc frame 21, and the fixed seat is provided with a cutting knife pushed by a telescopic pushing member, and the surface of the second roller is provided with a strip groove, and the cutting edge of the cutting knife can be inserted into the strip groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention realizes the automated operation from clamping, rotating winding to heating and laminating through the coordinated work of the clamping mechanism, rotating mechanism, heating mechanism, etc., which reduces manual intervention and greatly improves packaging efficiency.

[0018] 2. The present invention realizes multi-sided heating of the product body and the upper and lower ends by cooperating with the heating air hood and the heating air duct. Combined with the continuous heating during the film wrapping process, the film is closely attached to the product, ensuring the tightness and integrity of the packaging and improving the packaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of Example 1 of the present invention;

[0020] Figure 2 This is a schematic diagram of a partial three-dimensional structure of Example 1 of the present invention;

[0021] Figure 3 For Example 1 of the present invention Figure 2 A magnified view of the structure at center A;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the heating mechanism of Example 1 of the present invention;

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the heating air duct according to Example 1 of the present invention;

[0024] Figure 6 This is a schematic diagram of the overall three-dimensional structure of embodiment 2 of the present invention from a first viewing angle;

[0025] Figure 7 For Example 2 of the present invention Figure 6 A magnified view of the structure at point B in the middle;

[0026] Figure 8 Schematic diagram of the overall three-dimensional structure of embodiment 2 of the present invention from a second viewing angle;

[0027] Figure 9 For Example 2 of the present invention Figure 8 Enlarged view of the structure at point C in the middle.

[0028] In the figure: 1. workbench; 2. heating mechanism; 21. first arc frame; 22. drive roller; 23. heating hood; 24. hot air blower; 25. mounting plate; 26. electric push rod; 27. heating duct; 28. film pressing ball; 3. clamping mechanism; 31. fixed frame; 32. clamping motor; 33. bidirectional screw; 34. slide bar; 35. movable block; 36. support arm; 4. rotating mechanism; 41. second arc frame; 42. drive roller; 43. rotating motor; 44. transmission belt; 45. arc baffle; 5. film body; 6. product; 7. support; 8. L-shaped connecting rod; 91. fixed seat; 92. first roller; 93. second roller; 94. cutting knife. DETAILED DESCRIPTION

[0029] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0030] The structure of the present invention is described in detail below with reference to the accompanying drawings.

[0031] Example 1

[0032] like Figures 1 to 5 As shown, a heating plastic film packaging machine provided by Example 1 of the present invention includes a workbench 1, a clamping mechanism 3 is provided on the workbench 1, a heating mechanism 2 and a rotating mechanism 4 are connected to the clamping mechanism 3, the heating mechanism 2 and the rotating mechanism 4 rotate and clamp the product 6 internally, a support 7 is rotatably provided at the bottom of the product 6, and a film body 5 is also provided on the workbench 1, one end of the film body 5 is wrapped around the product 6, and the film body 5 is higher than the height of the product 6.

[0033] During use, one end of the film body 5 is placed against the outer surface of the product 6. The clamping mechanism 3 drives the heating mechanism 2 and the rotating mechanism 4 to move inward synchronously, so that the transmission roller 22 and the driving roller 42 clamp the film body 5 and the product 6. The hot air blower 24 heats the product 6 and cooperates with the rotating mechanism 4 to drive the product 6 to rotate, achieving simultaneous film wrapping and heating. The upper end of the support 7 is tapered, supporting the product 6 so that its bottom is suspended. The electric push rod 26 pushes the heating air duct 27 and the film pressing ball 28 to process the film extending from the upper and lower ends of the product 6. The hot air heats the film to the upper and lower ends of the product 6, completing the packaging. These mechanisms work together to achieve automatic film wrapping packaging of the product 6, covering the entire body and upper and lower ends of the product 6, and improving the packaging integrity.

[0034] Furthermore, the clamping mechanism 3 includes a fixed frame 31, on which a bidirectional screw 33 and a slide bar 34 are mounted. One end of the bidirectional screw 33 is fixedly connected to the output end of the clamping motor 32, and the clamping motor 32 is fixedly mounted on the fixed frame 31. A movable block 35 is threadedly connected to the bidirectional screw 33, and the movable block 35 is slidably mounted on the slide bar 34. One side of the movable block 35 is fixedly connected to the support arm 36. After the clamping motor 32 is started, it drives the bidirectional screw 33 to rotate. Since the movable block 35 is threadedly connected to the bidirectional screw 33 and slidably mounted on the slide bar 34, when the bidirectional screw 33 rotates, it drives the two movable blocks 35 to move toward or away from each other along the slide bar 34, thereby driving the support arm 36 connected to the movable block 35 to move synchronously, thereby clamping or loosening the product 6. Through the cooperation of the bidirectional screw 33 and the slide rod 34, the synchronization and stability of the movement of the two support arms 36 are ensured, the clamping force can be accurately controlled to adapt to products 6 of different sizes, and the versatility and clamping reliability of the equipment are improved.

[0035] Furthermore, the rotating mechanism 4 and the heating mechanism 2 respectively include a second curved frame 41 and a first curved frame 21. The second curved frame 41 and the first curved frame 21 are respectively fixedly connected to the two support arms 36. The second curved frame 41 and the first curved frame 21 respectively have a driving roller 42 and a transmission roller 22 rotatably mounted therein. When the support arms 36 move, they drive the first curved frame 21 and the second curved frame 41 fixed thereto to move synchronously, so that the transmission roller 22 in the first curved frame 21 and the driving roller 42 in the second curved frame 41 cooperate with each other to clamp the product 6 and the film body 5 from both sides, providing a stable clamping foundation for subsequent rotary winding and heated lamination.

[0036] Furthermore, a rotary motor 43 is fixedly mounted on the upper end of the second curved frame 41. The output end of the rotary motor 43 is connected to the drive roller 42 via a transmission belt 44. A curved baffle 45, whose curvature matches the curvature of the second curved frame 41, is fixedly connected to the upper end of the second curved frame 41. The transmission belt 44 rotates along the outer circumference of the curved baffle 45. When the rotary motor 43 is activated, its output end drives the drive roller 42 to rotate via the transmission belt 44. Because the drive roller 42 is in close contact with the product 6, its rotation drives the product 6 to rotate synchronously, allowing the film body 5 to be evenly wrapped around the outer circumference of the product 6. The curved baffle 45 guides and limits the transmission belt 44, preventing it from contacting the film body 5.

[0037] Furthermore, a heating hood 23 is fixedly connected to the interior of the first curved frame 21. A hot air blower 24 is disposed outside the first curved frame 21, one end of which is connected to the interior of the heating hood 23. When the hot air blower 24 is activated, it generates hot air, which is transported to the heating hood 23. The heating hood 23 blows the hot air evenly toward the film body 5 wrapped around the product 6, causing the film to soften due to the heat, thereby tightly adhering to the surface of the product 6 and improving the tightness and aesthetics of the packaging.

[0038] Furthermore, mounting plates 25 are fixedly connected to the upper and lower ends of the outer side of the first curved frame 21. An electric push rod 26 is fixedly mounted on the mounting plate 25. The output end of the electric push rod 26 is fixedly connected to a heating duct 27, which is connected to the hot air blower 24 via an air duct. A film pressing ball 28 is provided at the end of the heating duct 27. When the film extending from the upper and lower ends of the product 6 needs to be processed, the electric push rod 26 extends, pushing the heating duct 27 and the film pressing ball 28 toward the product 6. The film pressing ball 28 presses the extended film toward the upper and lower ends of the product 6. Simultaneously, hot air blown from the heating duct 27 heats this portion of the film, softening it and laminating it to the upper and lower ends of the product 6. The provision of the film pressing ball 28 prevents the heating duct 27 from directly contacting the film and causing scratches. This arrangement effectively processes the film extending from the upper and lower ends of the product 6, achieving simultaneous heating and laminating of multiple sides of the product 6, thereby improving the integrity of the packaging.

[0039] Working principle of embodiment 1 of the present invention:

[0040] When in use, first fit one end of the film body 5 to the outer peripheral surface of the product 6, and the clamping motor 32 of the clamping mechanism 3 drives the bidirectional screw 33 to rotate, driving the two movable blocks 35 and the support arm 36 to move toward each other, so that the first arc frame 21 and the second arc frame 41 are synchronously close to the product 6 until the transmission roller 22 and the driving roller 42 clamp the product 6 and the film, and then the hot air blower 24 is started, and the hot air is blown to the film through the heating wind hood 23 to soften it and fit it to the product 6. At the same time, the rotating motor 43 drives the driving roller 42 to rotate through the transmission belt 44, driving the product 6 to rotate to achieve multi-layer winding of the film, and the electric push rod 26 pushes the heating air duct 27 and the film pressing ball 28 to move. The film pressing ball 28 presses the excess film at the upper and lower ends of the product 6 toward the product 6, and the heating air duct 27 synchronously blows hot air to make this part of the film fit, finally completing the comprehensive and tight packaging of the product 6. To sum up: the heated plastic film packaging machine realizes automated operations from clamping, rotating winding to heating and bonding through the coordinated work of the clamping mechanism 3, the rotating mechanism 4, the heating mechanism 2, etc., reduces manual intervention, and greatly improves packaging efficiency. The heating hood 23 and the heating air duct 27 cooperate to achieve multi-sided heating of the product 6 body and the upper and lower ends. Combined with the continuous heating during the film winding process, the film is closely attached to the product 6, ensuring the tightness and integrity of the packaging and improving the packaging quality.

[0041] Example 2

[0042] On the basis of Example 1, the following settings are also performed:

[0043] See Figures 1-9The heating duct 27 is fixedly connected to an L-shaped connecting rod 8, to which a vertically mounted cutting mechanism is fixedly mounted. The cutting mechanism can be configured as a vertically mounted thermal cutter (not shown). With this configuration, when the electric push rod 26 pushes the heating duct 27 and the film pressing ball 28 to move, the thermal cutter first cuts the film body 5. The film pressing ball 28 then presses the excess film at the upper and lower ends of the product 6 toward the product 6. The heating duct 27 simultaneously blows hot air to adhere this portion of the film, ultimately completing the comprehensive and tight packaging of the product 6. These actions are performed simultaneously, eliminating the need for an additional mechanism to push the thermal cutter for cutting, which improves convenience.

[0044] In addition to being set as the above-mentioned vertically arranged hot cutting knife, the cutting mechanism can also be set as the following form: the cutting mechanism includes a fixed seat 91, the fixed seat 91 is fixedly connected to the L-shaped connecting rod 8, and the first roller 92 and the second roller 93 are rotatably connected to the fixed seat 91. The first roller 92 and the second roller 93 are in contact with each other, and the plane formed by the axis line of the first roller 92 and the second roller 93 is perpendicular to the cross-section of the first arc frame 21. The fixed seat 91 is provided with a cutting knife 94 pushed by a telescopic pushing member, and the surface of the second roller 93 is provided with a strip groove, and the cutting blade of the cutting knife 94 can be inserted into the strip groove.

[0045] The working principle of Example 2 of the present invention is as follows: one end of the film body 5 is passed through the first roller 92 and the second roller 93, and is attached to the transmission roller 22, and the product 6 is placed so that the film body 5 is located between the transmission roller 22 and the product 6. The clamping motor 32 of the clamping mechanism 3 drives the bidirectional screw 33 to rotate, driving the two movable blocks 35 and the support arm 36 to move toward each other, so that the first arc frame 21 and the second arc frame 41 are synchronously close to the product 6 until the transmission roller 22 and the drive roller 42 clamp the product 6 and the film; the hot air blower 24 is started, and hot air is blown to the film through the heating wind hood 23 to soften it and stick to the product 6. At the same time, the rotating motor 43 drives the drive roller 42 to rotate through the transmission belt 44, driving the product 6 to rotate to realize multi-layer winding of the film. After the required film is wound, the electric push rod 26 pushes the heating air duct 27 and the film pressing ball 28 to move, and at the same time performs the following actions: first, the cutting mechanism is pushed to cut the film body 5; second, the film pressing ball 28 presses the excess film at the upper and lower ends of the product 6 toward the product 6, and the heating air duct 27 simultaneously blows hot air to make this part of the film fit, and finally completes the comprehensive and tight packaging of the product 6; third, the heating air duct 27 drives the cutting mechanism to move in the direction of the rotating mechanism 4 until the second roller 93 fits on the driving roller 42, so that the driving roller 42 drives the second roller 93 to rotate when rotating, thereby cutting a certain length of the film body 5 (the specific length can be controlled by the fitting time of the second roller 93 and the driving roller 42. After reaching the preset length, the heating air duct 27 drives the cutting mechanism to retreat slightly, and the fitting between the second roller 93 and the driving roller 42 is released). After the processing is completed, each component is reset and the product 6 is taken out. At the same time, when the heating air duct 27 is reset, the cutting mechanism can be driven to reset. The partially pulled out film body 5 can be attached to the transmission roller 22 for the next processing.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A heated plastic film packaging machine, comprising a workbench (1), characterized in that: The workbench (1) is provided with a clamping mechanism (3), and the clamping mechanism (3) is connected to a heating mechanism (2) and a rotating mechanism (4), and the heating mechanism (2) and the rotating mechanism (4) rotate and clamp the product (6) internally, and a support (7) is rotatably provided at the bottom of the product (6). The workbench (1) is also provided with a film body (5), and one end of the film body (5) is wound around the product (6); the heating mechanism (2) includes a first arc frame (21), and the upper and lower ends of the outer side of the first arc frame (21) are fixedly connected to a mounting plate (25), and an electric push rod (26) is fixedly installed on the mounting plate (25), and the output end of the electric push rod (26) is fixedly connected to a heating air duct (27), and the heating air duct (27) is connected to the hot air blower (24) through the air duct, and a film pressing ball (28) is provided at the end of the heating air duct (27).

2. The heated plastic film packaging machine according to claim 1, characterized in that: The clamping mechanism (3) includes a fixed frame (31), a bidirectional screw (33) and a slide bar (34) are mounted on the fixed frame (31), one end of the bidirectional screw (33) is fixedly connected to the output end of the clamping motor (32), the clamping motor (32) is fixedly mounted on the fixed frame (31), a movable block (35) is threadedly connected to the bidirectional screw (33), the movable block (35) is slidably sleeved on the slide bar (34), and one side of the movable block (35) is fixedly connected to a support arm (36).

3. The heated plastic film packaging machine according to claim 2, characterized in that: The rotating mechanism (4) comprises a second arc frame (41), wherein the second arc frame (41) and the first arc frame (21) are respectively fixedly connected to two support arms (36), and a driving roller (42) and a transmission roller (22) are rotatably mounted inside the second arc frame (41) and the first arc frame (21).

4. The heated plastic film packaging machine according to claim 3, wherein: A rotating motor (43) is fixedly mounted on the upper end of the second arc frame (41), and an output end of the rotating motor (43) is connected to a driving roller (42) via a transmission belt (44). An arc baffle (45) adapted to the arc of the second arc frame (41) is fixedly connected to the upper end of the second arc frame (41), and the transmission belt (44) is rotatably arranged along the outer peripheral surface of the arc baffle (45).

5. The heated plastic film packaging machine according to claim 3, characterized in that: A heating hood (23) is also fixedly connected to the interior of the first arc-shaped frame (21), and a hot air blower (24) is provided on the outside of the first arc-shaped frame (21), with one end of the hot air blower (24) being connected to the interior of the heating hood (23).

6. The heated plastic film packaging machine according to claim 5, characterized in that: An L-shaped connecting rod (8) is fixedly connected to the heating air duct (27), and a vertically arranged cutting mechanism is fixedly connected to the L-shaped connecting rod (8).

7. The heated plastic film packaging machine according to claim 6, characterized in that: The cutting mechanism is configured as a thermal cutting knife.

8. The heated plastic film packaging machine according to claim 6, characterized in that: The cutting mechanism includes a fixed seat (91), the fixed seat (91) is fixedly connected to the L-shaped connecting rod (8), a first roller (92) and a second roller (93) are rotatably connected to the fixed seat (91), the first roller (92) and the second roller (93) are in close contact, and the plane formed by the axis of the first roller (92) and the second roller (93) is perpendicular to the section of the first arc frame (21), the fixed seat (91) is provided with a cutting knife (94) pushed by a telescopic pushing member, and the surface of the second roller (93) is provided with a strip groove, and the cutting edge of the cutting knife (94) can be inserted into the strip groove.

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