An environmentally friendly and energy-saving food-grade film punching machine

By adopting a rolling punching mechanism and an auxiliary support mechanism in the food-grade film punching machine, the problems of heat loss and uneven pore size in the prior art are solved, and efficient and uniform punching effect is achieved, and the goals of environmental protection and energy saving are reduced.

CN119328849BActive Publication Date: 2025-03-28HANGZHOU TOMORROW FLEXIBLE PACKAGING CO LTD
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Patent Information

Application Number
CN202411884400.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-03-28
Estimated Expiration
2044-12-20

AI Technical Summary

Technical Problem

There are problems of heat loss and uneven pore size during the drilling process of existing film punching machines, which leads to incomplete punching or leaving scratches, and the residual film debris on the hot needle may contaminate food.

Method used

An environmentally friendly and energy-saving food-grade film hole punching machine is designed, using a rolling hole punching mechanism and an auxiliary support mechanism. The heat is pre-stored through the telescopic mechanism of the heat needle to ensure the stability of the heat, and provides local support through dynamic adjustment of the curved ring wheel and support gasket to ensure the uniformity of the hole diameter.

Benefits of technology

It improves the drilling efficiency and uniformity of the hole diameter, reduces heat loss and incomplete drilling of the hole, avoids the contamination of film debris, reduces the power demand of the heating device, and achieves the goals of environmental protection and energy saving.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses an environmentally friendly and energy-saving food-grade film punching machine, which relates to the technical field of film punching, and comprises a supporting base, a conveying module is installed on the rear side of the supporting base, a controller is installed on the side wall of the conveying module, a heating module is installed above the conveying module, a rolling punching mechanism is arranged inside the conveying module, an auxiliary supporting mechanism is arranged below the rolling punching mechanism, the rolling punching mechanism is used for pre-storing heat to facilitate continuous punching of the film body, and the auxiliary supporting mechanism is used for ensuring the stability of continuous punching of the film body. Through this heat preservation pre-storage method, the hot needle can contact the film at a relatively stable temperature each time a hole is punched, and the telescopic punching method of the hot needle reduces unnecessary heat exchange, so that the hot needle can operate at a suitable temperature when contacting the film for punching, avoiding the problem of leaving scratches on the film instead of complete holes due to heat loss or temperature fluctuations.
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Description

Technical Field

[0001] The present invention relates to the technical field of film punching, and in particular to an environmentally friendly and energy-saving food-grade film punching machine. Background Art

[0002] Existing film punching machines are able to punch holes of precise sizes on food-grade films to meet the air permeability requirements of different foods, and the size and spacing of these holes can be precisely adjusted through the equipment's control system to ensure that the film's air permeability meets the preservation or storage requirements of specific foods.

[0003] In a Chinese patent with patent announcement number CN214733293U, a film punching machine is disclosed, including: a bracket, a tensioning assembly, a tool assembly, an anvil assembly and a roller tool holder, wherein: the tensioning assembly is mounted on the upper end of the bracket, the roller tool holder is rotatably mounted on the lower side of the bracket, the anvil assembly is distributed on the upper side of the tensioning assembly, and a plurality of tool assemblies are mounted on the roller tool holder. The tool assembly includes a power supply unit and a tool head with an annular end, the power supply unit is electrically connected to the tool head, the anvil assembly includes an active upper pressure roller, a driven upper pressure roller and an anvil belt in an annular shape, the anvil belt is tensioned and mounted on the active upper pressure roller and the driven upper pressure roller, and when the roller tool holder rotates, the rotating surface at the end of the tool head is tangent to the anvil belt, so that the film can be cut thoroughly to ensure the quality of the punching.

[0004] However, the devices in the above patent documents and the prior art still have the following defects when used specifically: 1. During the punching process of the prior art equipment, the temperature of the hot needle must remain stable. However, since the film is a poor conductor of heat and the hot needle is constantly in contact with and separated from the film, there will be a certain amount of heat loss and transfer changes. Moreover, at the moment the hot needle separates from the film, the hot needle will exchange heat with the surrounding air. Although the thermal conductivity of the air is relatively small, during the continuous punching process, the cumulative effect of this heat exchange will also cause subsequent holes to be incompletely punched, or leave scratches on the film instead of complete holes.

[0005] In addition, during the hot needle punching process, the high temperature of the hot needle will cause the film to partially melt, and the melted film part will stick to the hot needle. Even if the film is not completely melted, under the pressure and high temperature of the hot needle, as the microstructure of the film changes, it will cause the film debris to physically adhere to the surface of the hot needle. As time goes by, bacteria will breed and multiply on the debris. When the hot needle performs a punching operation again, the bacteria will be transferred to the new film, thereby contaminating the food packaging. In addition, for food-grade film punching, if the film debris remaining on the hot needle is mixed into the food packaging, it will contaminate the food.

[0006] At the same time, during the punching process of the hot needle perforator, the high temperature of the hot needle will cause decomposition reactions in some food-grade film materials, causing the film to produce some small molecular hydrocarbon gases, including some unsaturated hydrocarbons, which will have certain hazards to human health and the environment.

[0007] 2. Compared with the comparative documents, the film is well fixed by the tensioning component to prevent it from wrinkling due to force during the punching process. However, in the actual punching process, since the punching position lacks bottom support and is only tightened on both sides, the deformation caused by punching will lead to uneven hole diameter. For example, when pressing down to punch, the vertical deformation of the punching position of the film causes uneven force on the film around the hole. If the film sinks excessively locally during punching, a hole larger than expected will be punched. Conversely, if the film does not sink enough, the hole will not be fully penetrated or the hole diameter will be too small.

[0008] In view of this, the present invention proposes an environmentally friendly and energy-saving food-grade film punching machine to make up for and improve the shortcomings of the prior art. Summary of the invention

[0009] In order to solve the above technical problems, the present invention provides an environmentally friendly and energy-saving food-grade film punching machine to solve the technical problems raised in the above background technology.

[0010] To achieve the above objectives, the technical solution adopted by the present invention is: an environmentally friendly and energy-saving food-grade film punching machine, used for punching a film body, comprising a supporting base, a conveying module is installed on the rear side of the supporting base, a controller is installed on the side wall of the conveying module, a heating module is installed above the conveying module, a rolling punching mechanism is arranged inside the conveying module, an auxiliary supporting mechanism is arranged below the rolling punching mechanism, the rolling punching mechanism is used to pre-store heat to facilitate continuous punching of the film body, and the auxiliary supporting mechanism is used to ensure the stability of continuous punching of the film body.

[0011] Furthermore, the rolling punching mechanism includes a punching roller rotatably connected to the inside of the conveying module, the inside of the punching roller is rotatably connected to a central spindle, the outer wall of the central spindle is evenly fixedly connected to an adapter ring, a hot needle is evenly installed on the outside of the adapter ring, the hot needle penetrates and is slidably connected to the surface of the punching roller, the outer wall of the hot needle is fixedly connected to an adjusting cylinder, the adjusting cylinder is fixedly connected to the inner wall of the punching roller, the outer wall of the punching roller is fixedly connected to a debris removal pipe at the position corresponding to the hot needle, the hot needle is slidably connected to the debris removal pipe, and the outer wall of the punching roller is evenly fixedly connected to a storage bin.

[0012] Furthermore, six through grooves are evenly penetrated through the surface of the perforated roller, and each two through grooves form a group and are symmetrically arranged on both sides of the hot needle, and the through grooves are trapezoidal in shape, narrow inside and wide outside.

[0013] Furthermore, a curved surface block is fixedly connected directly below the adapter ring, and the central spindle and the hot needle are rotationally connected via the adapter ring.

[0014] Furthermore, the inside of the adjusting cylinder is evenly and fixedly connected with an elastic rope, and the elastic rope is initially in a relaxed state, the hot needles are initially contracted inside the punching drum, and the inner wall of the output end of the impurity removal pipeline is installed with a soft brush.

[0015] Furthermore, activated carbon adsorbent is stored inside the storage bin, and adsorption holes are evenly opened on the surface of the storage bin, and the sizes of the adsorption holes increase from bottom to top.

[0016] Furthermore, the auxiliary support mechanism includes a curved ring wheel symmetrically fixedly connected to the side wall of the grooved roller in the conveying module, a right-angle frame is installed on the outside of the curved ring wheel, a fixed seat is fixedly connected to the lower surface of the right-angle frame, a support gasket is symmetrically fixedly connected to the upper surface of the fixed seat, and a guide ring is slidably connected to the upper surface of the right-angle frame, and the guide ring is rotatably connected to the outer wall of the punching roller.

[0017] Furthermore, the loop wheel is in a triangular shape as a whole, each vertex of the loop wheel is chamfered in an arc shape, and the edge line between every two vertices of the loop wheel is concave inwards.

[0018] Furthermore, the uppermost portion of the support gasket is in a symmetrical arc shape, and the support gasket specifically corresponds to between the groove roller and the driven roller in the conveying module.

[0019] Furthermore, the middle part of the right angle frame is in an incomplete rectangular transition, the upper and lower ends are cylindrical rods, and the upper and lower ends of the right angle frame are rotatably connected to rollers, and the curved ring wheel is rotatably connected to the right angle frame through the rollers.

[0020] Furthermore, the conveying module includes a body frame, a driving roller, a driven roller, and a groove roller correspondingly installed directly below the punching roller.

[0021] Furthermore, the heating module includes a temperature sensor and a heating element, and the heat generated by the heating element in the heating module is transferred to the heating needle through the punching roller in a heat conduction manner.

[0022] Compared with the prior art, the present invention has the following beneficial effects: (1) In order to improve the problem of temperature change after hot needle punching, the device sets the punching drum as a cylindrical bin, so that the hot needle initially shrinks inside the bin. First, in terms of punching efficiency, the device can operate quickly and stably at each punching position through the telescopic mechanism of the hot needle, avoiding the interruption of punching due to the cumulative effect of heat exchange during the conversion process, thereby increasing the effective number of punching per unit time and meeting the needs of large-scale production. Secondly, in terms of temperature maintenance, the hot needle quickly shrinks back to the inside of the punching drum for heat preservation after punching, waiting for the next punching. This mechanism helps to maintain the stability of the temperature of the hot needle. Through this heat preservation pre-storage method, the hot needle can contact the film at a relatively stable temperature each time a hole is punched. Finally, since the telescopic punching method of the hot needle reduces unnecessary heat exchange, the hot needle can operate at a suitable temperature when contacting the film for punching, avoiding the problem of leaving scratches on the film instead of complete holes due to heat loss or temperature fluctuations.

[0023] What is particularly important is that when the hot needle is in the process of rotating and replacing, it will consume its own heat, while the hot needle of the present device can quickly return to the insulation environment after drilling, so that the hot needle is in a relatively stable insulation environment when not drilling, thereby ensuring that the temperature of the hot needle before each drilling can be maintained at a relatively stable level. At the same time, this method does not require frequent replenishment of a large amount of heat to the hot needle like the prior art. Therefore, within the same production cycle, the hot needle of the present device only needs less energy input to maintain the temperature required for drilling, thereby reducing the power demand of the heating device.

[0024] Compared with the hot needle punching method used in the prior art, the telescopic punching method implemented by this device also has the following advantages: First, this device is equipped with storage bins for storing activated carbon adsorbents on both sides of the hot needle. By adsorbing the harmful gases generated during the hot needle punching process, on the one hand, it provides a healthier working environment for operators, and on the other hand, it reduces the emission of these gases into the atmosphere, thereby achieving environmental protection purposes.

[0025] Secondly, the device installs a soft-bristle brush on the moving path of the hot needle, so that the outer wall of the hot needle can be cleaned in time, and the film debris adhered to the surface of the hot needle during the punching process can be effectively removed. In addition, the soft-bristle brush is of a covering design, so it also provides a relatively sealed space for the hot needle, so that the heat inside the punching drum will not be easily dissipated, reducing the exchange of heat inside the punching drum with the external environment.

[0026] Among them, relying on the special design of the trapezoid with a small proportion of the through groove and a narrow inside and a wide outside, as well as the continuous rotation of the punching drum, the heat inside the punching drum can be prevented from being lost during operation, so that the hot needle can work in a relatively stable temperature environment. When the punching drum stops running, the heat inside it can naturally flow to the outside through the through groove for cooling. This natural cooling process can prevent overheating due to heat accumulation inside the punching drum, thereby preventing changes in the material properties of the hot needle, protecting it and extending its service life.

[0027] (2) In order to improve the problem of local subsidence of the film during punching, the device intermittently triggers the support gasket to move up and down through the rotation of the curved ring wheel. First, when the hot needle is punching, the support gasket moves upward to form local support for the film. This local support effectively prevents the film from local subsidence during punching, thereby making the force on the film around the hole more uniform, thereby improving the uniformity of the hole diameter. Secondly, when the hot needle is in the process of replacing, the support gasket is away from the film. The dynamic adjustment movement of the support gasket avoids interference with the film conveying process, which helps to maintain the smooth operation of the entire production line.

[0028] Compared with the prior art, the dynamic adjustment method adopted by the present device solves the problem of uneven aperture caused by lack of bottom support at the punching position in the prior art, and through the local support of the support gasket, it can avoid the problem of wrinkles when the film is punched under force, thereby controlling the aperture deviation within a smaller range. Compared with the use of a limiting tensioning structure on both sides of the film, in the scenario of a high-speed film punching production line, the support gasket of the present device is away from the film when the hot needle is replaced, thereby ensuring the normal conveying state of the film, preventing excessive contact between the film and the structure, thereby greatly improving the stability of film conveying, and helping to improve production efficiency and product quality.

[0029] Among them, each vertex of the curved ring wheel is processed with arc chamfers, so when the arc chamfers are triggered by contact with the right-angle frame, they can provide a smoother contact transition, ensuring that the impact force of the arc chamfers at the moment of contact is smaller, and relying on the triangular characteristics of the curved ring wheel, the curved ring wheel and the punching drum are more matched in spatial layout and switching operation.

[0030] Among them, the symmetrical arc design enables the support gasket to better fit the shape of the film. Most films will have a certain degree of curvature during the transportation process. This arc design can match the natural curvature of the film, ensuring that the support gasket can fit closely to the lower surface of the film, providing more stable support, and preventing the film from wrinkling or deforming in this area. The symmetrical arc shape helps to evenly disperse the pressure of the film on the support gasket to the entire arc surface. When the film is above the support gasket, the pressure will be transferred from the film to the support gasket. The arc structure allows the pressure to be evenly distributed along the arc surface, thereby effectively dispersing the pressure on the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention.

[0032] Figure 2 It is a top view of the three-dimensional structure of the present invention.

[0033] Figure 3 It is a schematic diagram of the three-dimensional structure of the punching drum in the present invention.

[0034] Figure 4 It is a schematic diagram of the three-dimensional structure of the rolling punching mechanism in the present invention.

[0035] Figure 5 It is a side plan view schematic diagram of the rolling punching mechanism in the present invention.

[0036] Figure 6 It is a schematic diagram of the internal three-dimensional structure of the perforated drum in the present invention.

[0037] Figure 7 It is a schematic diagram of the three-dimensional structure of the adapter ring in the present invention.

[0038] Figure 8 For the present invention Figure 7 A schematic diagram of the partially enlarged three-dimensional structure in the middle.

[0039] Fig. 9 It is a schematic diagram of the three-dimensional structure of the auxiliary support mechanism in the present invention.

[0040] Fig.10 It is a schematic diagram of the three-dimensional structure of the fixing seat in the present invention.

[0041] The numbers in the figure are: 1. Support base; 11. Conveying module; 12. Controller; 13. Heating module; 14. Film body; 2. Rolling punching mechanism; 21. Punching roller; 22. Middle spindle; 23. Adapter ring; 24. Hot needle; 25. Adjustment cylinder; 26. De-impurity pipeline; 27. Storage bin; 3. Auxiliary support mechanism; 31. Curved wheel; 32. Right-angle frame; 33. Fixed seat; 34. Support gasket; 35. Guide ring. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] It should be noted that the structures and working principles of the above-mentioned supporting base 1, conveying module 11, controller 12, heating module 13 and film body 14 belong to the prior art and will not be described in detail here.

[0044] Example 1: Please refer to Figure 1 and Figure 2 As shown, an environmentally friendly and energy-saving food-grade film punching machine is used for punching a film body 14, including a supporting base 1, a conveying module 11 is installed on the rear side of the supporting base 1, a controller 12 is installed on the side wall of the conveying module 11, a heating module 13 is installed above the conveying module 11, a rolling punching mechanism 2 is arranged inside the conveying module 11, an auxiliary supporting mechanism 3 is arranged below the rolling punching mechanism 2, the rolling punching mechanism 2 is used to pre-store heat to facilitate continuous punching of the film body 14, and the auxiliary supporting mechanism 3 is used to ensure the stability of continuous punching of the film body 14.

[0045] It should be noted that the conveying module 11 includes a body frame, a driving roller, a driven roller and a groove roller correspondingly installed directly below the punching roller 21, and the heating module 13 includes a temperature sensor and a heating element. The heat generated by the heating element in the heating module 13 is transferred to the heat needle 24 through the punching roller 21 in a heat conduction manner.

[0046] Please refer to Figures 3 to 8 The rolling punching mechanism 2 includes a punching roller 21 rotatably connected to the inside of the conveying module 11, the inside of the punching roller 21 is rotatably connected to the central spindle 22, the outer wall of the central spindle 22 is evenly fixedly connected to the adapter ring 23, the outside of the adapter ring 23 is evenly installed with a hot needle 24, the hot needle 24 penetrates and is slidably connected to the surface of the punching roller 21, the outer wall of the hot needle 24 is fixedly connected to an adjusting cylinder 25, the adjusting cylinder 25 is fixedly connected to the inner wall of the punching roller 21, the outer wall of the punching roller 21 is fixedly connected to a debris removal pipe 26 at the position corresponding to the hot needle 24, the hot needle 24 is slidably connected to the debris removal pipe 26, and the outer wall of the punching roller 21 is evenly fixedly connected to a storage bin 27.

[0047] It should be noted that an arc block is fixedly connected directly below the adapter ring 23, the central spindle 22 and the hot needle 24 are rotatably connected through the adapter ring 23, the inside of the adjusting cylinder 25 is evenly and fixedly connected with an elastic rope, and the elastic rope is initially in a relaxed state, the hot needles 24 are initially contracted inside the punching drum 21, and the inner wall of the output end of the impurity removal pipe 26 is installed with a soft brush, the inside of the storage bin 27 stores activated carbon adsorbent, and the surface of the storage bin 27 is evenly provided with adsorption holes, and the size of the adsorption holes increases from bottom to top.

[0048] Specifically, Figure 1 and Figure 2 As shown, first, the film body 14 is passed through the supporting base 1. After the equipment is started, the conveying module 11 starts to work, and the active roller starts to rotate under the drive of the motor and the transmission mechanism, and the film is driven forward by friction. At the same time, the heating module 13 starts to work, and the controller 12 sends instructions to the heating element according to the preset working temperature, and then starts to heat the hot needle 24. According to the conveying setting of the equipment, when the film body 14 is transmitted to the top of the groove roller, the punching roller 21 drives the hot needle 24 to punch the film body 14.

[0049] like Figure 5 As shown, in the initial state, the hot needle 24 is retracted into the inside of the punching roller 21. When the hot needle 24 follows the punching roller 21 to rotate to the corresponding groove roller directly below, the hot needle 24 will gradually slide out of the inside of the punching roller 21 along the arc block in the adapter ring 23, and then perform a punching process on the film body 14 above the groove roller. In the process of the hot needle 24 sliding, the elastic rope in the adjusting cylinder 25 will be continuously compressed. When the hot needle 24 continues to rotate with the punching roller 21 until it is offset from the arc block, the hot needle 24 will retract into the inside of the punching roller 21 under the rebound action of the elastic rope. In the actual punching process, the hot needle 24 is During the process of rotation and replacement, the heat of the hot needle 24 will be consumed. The method adopted by the present device enables the hot needle 24 to quickly return to the heat preservation environment inside the punching drum 21 after punching, so that the hot needle 24 is in a relatively stable heat preservation environment when not punching, thereby ensuring that the temperature of the hot needle 24 before each punching can be maintained at a relatively stable level. At the same time, this method does not need to frequently replenish a large amount of heat to the hot needle 24 as in the prior art. Therefore, within the same production cycle, the hot needle 24 of the present device only needs less energy input to maintain the temperature required for punching, thereby reducing the power demand of the heating device.

[0050] like Figure 7 and Figure 8As shown, a soft-bristle brush is installed in a covering manner on the moving path of the hot needle 24. Therefore, after the hot needle 24 punches the film body 14, the soft-bristle brush can clean the outer wall of the hot needle 24 in time, and effectively remove the film debris adhered to the surface of the hot needle 24 during the punching process. In addition, the soft-bristle brush is designed to be covered as a whole, thereby providing a relatively sealed space for the hot needle 24, so that the heat inside the punching roller 21 will not be easily dissipated, reducing the exchange of heat inside the punching roller 21 with the external environment.

[0051] It should be noted that six through grooves are evenly formed on the surface of the punching drum 21 , and each two through grooves form a group and are symmetrically arranged on both sides of the hot needle 24 , and the through grooves are in a trapezoidal shape that is narrow inside and wide outside.

[0052] Specifically, Figure 6 As shown, since the loss of heat is related to the surface area of ​​the object and the size of the heat dissipation channel, and the surface of the perforated drum 21 in the present device is evenly penetrated with six through grooves, since the through grooves occupy a small space, this means that the overall surface area of ​​the perforated drum 21 does not significantly increase the heat dissipation area due to the presence of the through grooves, and the overall design of the through grooves is a trapezoidal shape with a narrow inside and a wide outside. During the rotation of the perforated drum 21, the outside air and the air inside the drum want to exchange through the through grooves. The trapezoidal through grooves with a narrow inside and a wide outside make the air flow path gradually widen when the outside cold air enters the inside of the drum. This change will slow down the air flow rate. According to the principle of heat exchange, the slower the air flow rate, the lower the efficiency of heat exchange. Therefore, the heat inside the perforated drum 21 is not easily taken away quickly by the outside cold air. At the same time, When the punching drum 21 continues to rotate, the internal heat will be redistributed inside as the drum rotates. Since the through grooves account for a small proportion and have a special shape, during the rotation process, the heat will not be concentrated near the through grooves and dissipated in large quantities. On the contrary, the rotation of the drum will make the heat more evenly distributed inside, reducing the situation where local heat is too high and accelerates the loss. Therefore, when the punching drum 21 is in the process of running and rotating, it will continue to provide a relatively stable insulation space for the hot needle 24. When the punching drum 21 stops rotating, the heat inside it can naturally flow through the through grooves to the outside for cooling. This natural cooling process can avoid overheating due to heat accumulation inside the punching drum 21, thereby avoiding changes in the material properties of the hot needle 24, protecting it and extending its service life.

[0053] Example 2: Based on Example 1, please refer to Fig. 9 and Fig.10As shown, the auxiliary support mechanism 3 includes a curved ring wheel 31 which is symmetrically fixedly connected to the side wall of the grooved roller in the conveying module 11, and a right-angle frame 32 is installed on the outside of the curved ring wheel 31. The lower surface of the right-angle frame 32 is fixedly connected to a fixing seat 33, and the upper surface of the fixing seat 33 is symmetrically fixedly connected to a supporting gasket 34. The upper surface of the right-angle frame 32 is slidably connected to a guide ring 35, and the guide ring 35 is rotatably connected to the outer wall of the punching roller 21.

[0054] It should be noted that the curved ring wheel 31 is triangular in shape as a whole, each vertex of the curved ring wheel 31 is chamfered in an arc shape, and the side lines between every two vertices of the curved ring wheel 31 are recessed inward, the top of the support gasket 34 is symmetrically arc-shaped, and the support gasket 34 specifically corresponds to the groove roller and the driven roller in the conveying module 11, the middle part of the right-angle frame 32 is an incomplete rectangular transition, and the upper and lower ends are cylindrical rods, and the upper and lower ends of the right-angle frame 32 are rotatably connected to rollers at the corner positions, and the curved ring wheel 31 and the right-angle frame 32 are rotatably connected through rollers.

[0055] Specifically, Fig. 9 and Fig.10 As shown, the curved ring wheel 31 will rotate synchronously with the grooved roller. Since each vertex of the curved ring wheel 31 is processed with arc chamfers, and the edge line between every two vertices of the curved ring wheel 31 is recessed inward, during the rotation of the curved ring wheel 31, when the vertex of the curved ring wheel 31 conflicts with the lower roller in the right-angle frame 32, the curved ring wheel 31 will drive the right-angle frame 32 to move downward as a whole. However, as the curved ring wheel 31 continues to rotate, its vertex will be offset from the lower roller in the right-angle frame 32 until it contacts the upper roller in the right-angle frame 32, thereby driving the right-angle frame 32 to move upward as a whole. Therefore, the present device can be used to rotate the curved ring wheel 31. The support gasket 34 is triggered to move up and down intermittently through the right-angle bracket 32. First, when the hot needle 24 is punching, the support gasket 34 moves upward to form local support for the film body 14. This local support effectively prevents the film body 14 from partially sinking during punching, thereby making the film body 14 around the punching more evenly stressed, thereby improving the uniformity of the aperture. Secondly, when the hot needle 24 is in the process of replacing, the support gasket 34 will gradually move away from the film body 14. The dynamic adjustment movement of the support gasket 34 avoids interference with the conveying process of the film body 14, which helps to maintain the smooth operation of the entire production line.

[0056] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly and energy-saving food-grade film punching machine, used for punching a film body (14), comprising a support base (1), on which a conveying module (11) is mounted, characterized in that: The conveying module (11) is provided with a rolling punching mechanism (2) inside, and the rolling punching mechanism (2) is used to pre-store heat so as to continuously punch holes in the film body (14); the rolling punching mechanism (2) comprises a punching roller (21) rotatably connected to the inside of the conveying module (11), the inside of the punching roller (21) is rotatably connected to a central spindle (22), the outer wall of the central spindle (22) is evenly fixedly connected to an adapter ring (23), the outside of the adapter ring (23) is evenly installed with a hot needle (24), and the outer wall of the hot needle (24) is fixedly connected to an adjustment cylinder (25); the surface of the punching roller (21) is evenly penetrated with six through grooves, and each two through grooves are symmetrically arranged on both sides of the hot needle (24) as a group, and the through grooves are in the shape of a trapezoid with narrow inside and wide outside; An auxiliary support mechanism (3) is provided below the rolling punching mechanism (2), and the auxiliary support mechanism (3) is used to ensure the stability of continuous punching of the film body (14), and the auxiliary support mechanism (3) comprises a curved ring wheel (31) symmetrically fixedly connected to the side wall of the grooved roller in the conveying module (11), and a right-angle frame (32) is installed on the outside of the curved ring wheel (31), and a fixed seat (33) is fixedly connected to the lower surface of the right-angle frame (32), and a support gasket (34) is symmetrically fixedly connected to the upper surface of the fixed seat (33), and a guide ring (35) is slidably connected to the upper surface of the right-angle frame (32), and the guide ring (35) is rotatably connected to the outer wall of the punching roller (21); The curved ring wheel (31) is triangular in shape as a whole, each vertex of the curved ring wheel (31) is chamfered in an arc shape, and the edge line between every two vertices of the curved ring wheel (31) is concave inwards; The middle part of the right-angle frame (32) is in an incomplete rectangular transition, and the upper and lower ends are cylindrical rods. The upper and lower ends of the right-angle frame (32) are both rotatably connected to rollers at the corner positions, and the curved ring wheel (31) and the right-angle frame (32) are rotatably connected via the rollers. The conveying module (11) comprises a body frame, a driving roller, a driven roller, and a grooved roller correspondingly installed directly below the perforated roller (21).

2. The environmentally friendly and energy-saving food-grade film punching machine according to claim 1 is characterized by: A curved surface block is fixedly connected directly below the adapter ring (23); the central spindle (22) and the hot needle (24) are rotatably connected via the adapter ring (23); the hot needle (24) penetrates and is slidably connected to the surface of the punching drum (21); the adjustment cylinder (25) is fixedly connected to the inner wall of the punching drum (21); a debris removal pipe (26) is fixedly connected to the outer wall of the punching drum (21) at a position corresponding to the hot needle (24); the hot needle (24) and the debris removal pipe (26) are slidably connected; and a storage bin (27) is evenly fixedly connected to the outer wall of the punching drum (21).

3. The environmentally friendly and energy-saving food-grade film punching machine according to claim 2 is characterized by: The inside of the adjustment cylinder (25) is evenly and fixedly connected with an elastic rope, and the elastic rope is initially in a relaxed state. The hot needles (24) are initially contracted inside the punching drum (21), and the inner wall of the output end of the impurity removal pipe (26) is installed with a soft brush.

4. The environmentally friendly and energy-saving food-grade film punching machine according to claim 2 is characterized by: Activated carbon adsorbent is stored inside the storage bin (27), and adsorption holes are evenly opened on the surface of the storage bin (27), and the size of the adsorption holes increases from bottom to top.

5. The environmentally friendly and energy-saving food-grade film punching machine according to claim 1 is characterized by: The uppermost portion of the support gasket (34) is in a symmetrical arc shape, and the support gasket (34) corresponds to between the groove roller and the driven roller in the conveying module (11).

6. The environmentally friendly and energy-saving food-grade film punching machine according to claim 1 is characterized by: A heating module (13) is installed above the conveying module (11), the heating module (13) comprising a temperature sensor and a heating element, and the heat generated by the heating element in the heating module (13) is transferred to the heat needle (24) through the punching roller (21) in a heat conduction manner.

Citation Information

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