Automatic preservative film cutter

Abstract

The utility model discloses an automatic preservative film cutter which comprises a shell, a film outlet is arranged at the front end of the shell, and a power source, an integrated circuit board, a discharging auxiliary device, a conductive track and a linear driving device are installed in the shell. The power supply is electrically connected with the integrated circuit board; the discharging auxiliary device is used for placing a preservative film; the conductive track is arranged along the length direction and is electrically connected to a power supply line; the linear driving device comprises a driving motor and a lead screw, the lead screw is connected with a material melting assembly in a sliding mode, the material melting assembly is electrically connected to the electric conduction rail, and a heating wire is arranged on the material melting assembly. A preservative film is pulled out in a manual mode, the pulling-out speed is high, and a user can visually judge the length of the preservative film needing to be pulled out; in addition, a heating wire fusing mode is adopted to complete automatic fusing of the preservative film, after the preservative film is manually pulled out to a proper length, a starting button is pressed, fusing of the preservative film can be completed through the heating wire on the material melting assembly, the fusing process is smokeless and odorless, the cutting effect is good, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen utensils, in particular to an automatic cling film cutter. Background Technique

[0002] As is well known, in order to prevent the food placed in the refrigerator from having a mixed smell and to maintain the moisture and freshness, and to prevent the food placed in the microwave oven from losing moisture during processing, a layer of cling film is usually wrapped outside the food or on the mouth of the container for placing the food. The cling film on the market is usually in a roll shape and has two types: the dotted type and the tearing type. Among them, the dotted cling film cannot adjust the length of the cling film required each time and can only be pulled and cut according to the position of the break point, which sometimes causes waste of the cling film; the tearing type of cling film needs to be torn by hand, which is often difficult and is likely to cause the torn part to be uneven, affecting the use.

[0003] To make the use of cling film more convenient, there are currently many types of cling film cutters on the market, which are specifically divided into manual and electric cling film cutters. Among them, the manual cling film cutter adopts the following scheme: the cling film is placed in a box, a draw opening is provided on the box, and a sliding knife is provided at the draw opening. The cling film is cut by manually sliding the sliding knife. However, in the actual use process, due to the material of the cling film itself having certain adhesiveness and being very thin, when cutting the cling film with a sliding knife, affected by the tension of the cling film itself, if the cling film is not straightened, the cutting difficulty is still relatively large. In addition, for the electric cling film cutter, such as the intelligent cling film cutting device disclosed in Chinese Patent CN202220850140.8, in this scheme, the cling film is automatically pulled out and the cutting is still completed by a cutting knife group. In the actual operation process, due to using a blade to cut the cling film, the above problems still exist. And because it is necessary to electronically control the pulling out of the cling film, the pulling out time is relatively long. In many cases, people have no concept of how much length to pull out specifically and only have a feeling after pulling out the cling film. It is not appropriate to set the pulling out length in advance. During the household use process, it is still not very convenient. In addition, due to the relatively complex internal structure, the purchase cost is also relatively high. Content of the Utility Model

[0004] To solve the above problems, the utility model provides an automatic cling film cutter.

[0005] The technical solution adopted by the utility model is: an automatic cling film cutter, comprising:

[0006] A housing, the front end of the housing is provided with a film outlet, and the extending direction of the film outlet is the long direction;

[0007] A power supply, fixed inside the housing;

[0008] An integrated circuit board is fixed inside the housing, and the power supply and the integrated circuit board are electrically connected.

[0009] A film feeding auxiliary device is installed in the housing for detachably mounting a plastic wrap, and the plastic wrap is arranged along the longitudinal direction.

[0010] A conductive track is made of a conductive material and is fixed in the housing along the longitudinal direction. Both ends of the conductive track are electrically connected to the power supply and the integrated circuit board respectively.

[0011] A linear driving device includes a driving motor fixed on the housing and a lead screw linked to the driving motor. The lead screw is arranged along the longitudinal direction. A melting material component includes a main body block and an extension block fixed on the main body block. The main body block is slidably connected to the lead screw, and at least one contact for maintaining electrical contact with the conductive track is provided on the main body block. The contact is electrically connected to a heating wire, and at least part of the heating wire is wound outside the extension block.

[0012] The plastic wrap has a to-be-fused state of being pulled out of the film outlet. In the to-be-fused state, the linear driving device drives the melting material component to move linearly along the longitudinal direction, and the heating wire fuses the plastic wrap.

[0013] The following also provides several optional ways, which are not additional limitations to the above overall solution, but are only further supplements or preferences. Without technical or logical contradictions, each optional way can be combined with the above overall solution alone, or multiple optional ways can be combined with each other.

[0014] Preferably, the extension block is arranged above the main body block, and part of the heating wire is installed on the edge of the extension block.

[0015] Preferably, a sliding groove is provided at the lower end of the main body block. There are two contacts, which are respectively located on the front and rear inner groove walls of the sliding groove, and the two contacts respectively abut against the front and rear sides of the conductive track.

[0016] Preferably, two induction switches spaced from each other along the longitudinal direction are provided inside the housing. The film outlet is located between the two induction switches, and the induction switches are electrically connected to the integrated circuit board. A convex block is provided on one side of the main body block, and the convex block is used to press the elastic piece on the induction switch.

[0017] Preferably, the housing includes a bottom shell and an upper shell hinged to the rear end of the bottom shell. The power supply and the integrated circuit board are both arranged on the upper shell, and the linear driving device and the conductive track are both arranged on the bottom shell.

[0018] Preferably, the left and right ends of the bottom shell are both provided with first clamping seats, and the two first clamping seats are respectively clamped with a first clamping block and a second clamping block. The material discharging auxiliary device includes the first clamping block and the second clamping block, and further includes:

[0019] A shaft rod, arranged along the length direction, with one end fixed to the first clamping block;

[0020] A first connector, sleeved on the shaft;

[0021] a return spring, sleeved on the shaft, with two ends of the return spring respectively abutting against the first connector and the first clamping block;

[0022] A second connector is fixed on one side of the second card block;

[0023] The roller is used to cooperate with the installation of the fresh-keeping film, and the two ends of the roller are respectively clamped on the first connecting head and the second connecting head.

[0024] Preferably, a start button is provided on the upper shell, and the start button is electrically connected to the integrated circuit board.

[0025] Preferably, the front end of the upper shell is provided with a clearance slot extending along the length direction, and the upper end of the extension block extends into the clearance slot.

[0026] Preferably, at least one mounting seat is provided along the length of the bottom shell, a film guide frame is installed on the mounting seat, the upper end of the film guide frame extends along the front-to-back direction and is located above the conductive track, and the extension block is located in front of the film guide frame.

[0027] More preferably, a charging element is mounted on the housing, the charging element is electrically connected to the integrated circuit board, and a charging port corresponding to the charging element is provided on the housing.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. The manual method of pulling out the cling film is retained, which has a fast pulling speed and the user can intuitively judge the length of the cling film to be pulled out, which is very convenient to use;

[0030] 2. The automatic fusing of the plastic wrap is achieved by melting the heating wire. After manually pulling out the plastic wrap to an appropriate length, press the start button (the heating wire is in a preheating state after the machine starts). The integrated circuit board operates to drive the motor, and the drive motor rotates the drive screw, enabling the melting component to linearly translate along the screw. Since the contacts on the fusing component remain in contact with the conductive track, the heating wire remains at a high temperature. During the linear translation of the melting component, the heating wire can melt the plastic wrap, achieving a very good cutting effect on the plastic wrap. Moreover, since the temperature of the heating wire is maintained appropriately, there is no smoke or odor during the fusing process. Brief Description of the Drawings

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0032] Figure 1 It is the overall structure diagram of opening the upper shell in an embodiment of the present application, without installing the plastic wrap and the film guide frame;

[0033] Figure 2 It is the overall structure diagram of opening the upper shell in an embodiment of the present application, with the plastic wrap and the film guide frame installed;

[0034] Figure 3 It is the overall structure diagram from the left side view in an embodiment of the present application;

[0035] Figure 4 It is the overall structure diagram from the right side view in an embodiment of the present application;

[0036] Figure 5 It is the axonometric structure diagram of the fuse component in an embodiment of the present application;

[0037] Figure 6 It is the side view of the fuse component in an embodiment of the present application;

[0038] Figure 7 It is the schematic diagram of the bottom shell in an embodiment of the present application and some structures installed on the bottom shell;

[0039] Figure 8 It is Figure 7 the schematic diagram of the structure with the screw rod, conductive rail, and roller shaft hidden;

[0040] Figure 9 It is Figure 7 the schematic diagram of the structure with the roller shaft hidden.

[0041] The labels in the attached drawings are: 1 - outer shell, 11 - film outlet, 12 - notch, 13 - groove, 14 - fixing plate, 15 - first card seat, 16 - second card seat, 17 - mounting seat, 18 - positioning bump, 19 - limiting block, 110 - relief notch, 111 - anti - detachment part, 112 - fixing cover, 113 - charging port, 114 - clamping seat, 2 - power supply, 3 - integrated circuit board, 31 - start button, 32 - light - transmitting plate, 4 - conductive track, 5 - induction switch, 6 - feeding auxiliary device, 61 - first block, 62 - shaft rod, 63 - first connector, 64 - second block, 65 - second connector, 66 - roller shaft, 7 - linear driving device, 71 - driving motor, 72 - screw rod, 73 - bearing, 8 - melt - material component, 81 - main body block, 811 - screw hole, 812 - sliding groove, 82 - extension block, 821 - wire - passing groove, 83 - bump, 84 - contact point, 9 - charging element, 10 - film - guiding frame, 101 - notch.

[0042] The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the embodiments and the attached drawings. Specific embodiments

[0043] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0044] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0045] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0046] Specific implementation scheme: Refer to Figures 1-9, the utility model is an automatic cutting device for fresh-keeping film, comprising:

[0047] A housing 1, with a film outlet 11 provided at the front end of the housing 1, and the extending direction of the film outlet 11 is set as the long direction;

[0048] A power supply 2, fixed inside the housing 1;

[0049] An integrated circuit board 3, fixed inside the housing 1, and the power supply 2 and the integrated circuit board 3 are electrically connected;

[0050] A feeding auxiliary device 6, installed in the housing 1 for detachably installing the fresh-keeping film, and the fresh-keeping film is arranged along the long direction;

[0051] A conductive track 4, made of a conductive material and fixed in the housing 1 along the long direction, and both ends of the conductive track 4 are electrically connected to the power supply 2 and the integrated circuit board 3 respectively;

[0052] A linear driving device 7, comprising a driving motor 71 fixed on the housing 1 and a lead screw 72 linked to the driving motor 71, and the lead screw 72 is arranged along the long direction;

[0053] A melting material component 8, comprising a main body block 81 and an extension block 82 fixed on the main body block 81, the main body block 81 is slidably connected to the lead screw 72, and at least one contact 84 for maintaining electrical contact with the conductive track 4 is provided on the main body block 81, the contact 84 is electrically connected to a heating wire, and at least part of the heating wire is wound outside the extension block 82;

[0054] The fresh-keeping film has a to-be-fused state of being pulled out from the film outlet 11. In the to-be-fused state, the linear driving device 7 drives the melting material component 8 to move linearly along the long direction, and the fresh-keeping film is melted by the heating wire.

[0055] Please refer to Figure 5 , it can be seen that in this embodiment, the extension block 82 is arranged above the main body block 81, and part of the heating wire is installed on the edge of the extension block 82.

[0056] In this embodiment, the extension block 82 is relatively flat (smaller in the front-back width), and a wire passing groove 821 for placing the heating wire is provided on the edge of the extension block 82. When the side end of the extension block 82 touches the fresh-keeping film, the heating wire located in the wire passing groove 821 will melt the fresh-keeping film.

[0057] Please refer to Figure 5 and Figure 6 , it can be seen that a sliding groove 812 is provided at the lower end of the main body block 81, there are two contacts 84, and they are respectively located on the front and rear inner groove walls of the sliding groove 812. The two contacts 84 respectively abut against the front and rear sides of the conductive track 4, and a threaded hole 811 for cooperating with the lead screw 72 in a sliding manner is also provided on the main body block 81.

[0058] Here, when the upper end of the conductive rail 4 is placed into the sliding contact groove 812, the two contacts 84 will respectively contact the front and rear sides of the conductive rail 4. Since the conductive rail 4 is electrically connected to the power supply line, the entire conductive rail 4 is provided with current. The current on the conductive rail 4 will be transmitted to the heating wire through the contacts 84 and the conductive wire, thereby causing the heating wire to generate heat.

[0059] Next, please refer to Figure 7 , it can be seen that two induction switches 5 spaced apart from each other along the long direction are provided inside the housing 1. The film outlet 11 is located between the two induction switches 5, and the induction switch 5 is electrically connected to the integrated circuit board 3. A convex block 83 is provided on one side of the main body block 81, and the convex block 83 is used to press the elastic piece on the induction switch 5.

[0060] Working principle of the induction switch 5: When the molten material assembly 8 is translated along the screw rod 72 to the position where the induction switch 5 is located, the convex block 83 on the main body block 81 will squeeze the elastic piece of the induction switch 5, thereby triggering the induction switch 5. The integrated circuit board 3 receives the signal provided by the induction switch 5 and will control the driving motor 71 to stop working. At this time, one cutting action is completed and the molten material assembly 8 stops moving.

[0061] Please refer to Figure 1 and Figure 2 , it can be seen that the housing 1 includes a bottom case and an upper case hinged to the rear end of the bottom case. The power supply 2 and the integrated circuit board 3 are both arranged on the upper case, and the linear driving device 7 and the conductive rail 4 are both arranged on the bottom case.

[0062] Please refer to Figures 7-9 , in this embodiment, a second card seat 16 is provided on the bottom case. A bearing 73 is placed on the second card seat 16. One end of the screw rod 72 far from the driving motor 71 passes through the bearing 73. An anti - detachment member 111 is installed on the bottom case at a position corresponding to the bearing 73. The setting of the bearing 73 can make the rotation of the screw rod 72 more stable, and the setting of the anti - detachment member 111 can limit the bearing 73.

[0063] Then, a limiting block 19 and a plurality of positioning convex blocks 8318 are arranged along the long direction on the bottom case. The positioning convex blocks 8318 are used to limit the front - rear position of the conductive rail 4, and the limiting block 19 is used to limit the left - right position of the conductive rail 4. In addition, a clamping seat 114 is also provided on the bottom case, and the conductive rail 4 passes through the clamping seat 114. When installing the conductive rail 4, after placing the conductive rail 4 in the corresponding position, screwing a fastening screw on the clamping seat 114 can further limit the position of the conductive rail 4, and the installation structure is very stable.

[0064] In addition, please refer to Figure 2 , a fixed cover 112 is provided on the bottom case at a position corresponding to the driving motor 71. The setting of the fixed cover 112 can protect and shield the driving motor 71.

[0065] Then, please refer to Figure 3 , it can be seen that a groove 13 is provided at the middle position of the front end of the upper shell, and a notch 12 is provided at the middle position near the upper part of the front end of the bottom shell. When it is necessary to open the upper shell, place the fingers of one hand at the notch 12 and pull the groove 13 with the other hand, then the upper shell can be opened. In addition, since the power supply 2 and the integrated circuit board 3 are both arranged on the upper shell, the space inside the outer shell 1 can be effectively utilized, and the overall structure is more compact.

[0066] Please refer to Figure 1 and Figure 2 , it can be seen that a fixing plate 14 is installed at the position of the upper shell corresponding to the integrated circuit board 3, and the fixing plate 14 can shield the integrated circuit board 3.

[0067] Next, the structure and principle of the feeding auxiliary device 6 in this embodiment will be described: Please refer to Figure 8 , it can be seen that first card seats 15 are provided at both left and right ends of the bottom shell, and a first card block 61 and a second card block 64 are respectively clamped on the two first card seats 15. The feeding auxiliary device 6 includes a first card block 61, a second card block 64, and further includes:

[0068] A shaft rod 62, arranged along the long direction, and one end is fixed on the first card block 61;

[0069] A first connector 63, sleeved on the shaft rod 62;

[0070] A return spring, sleeved on the shaft rod 62, and both ends of the return spring respectively abut against the first connector 63 and the first card block 61;

[0071] A second connector 65, fixed on one side of the second card block 64;

[0072] A roller shaft 66, used for installing the plastic wrap in cooperation, and both ends of the roller shaft 66 are respectively clamped on the first connector 63 and the second connector 65.

[0073] The working principle of the feeding auxiliary device 6: When it is necessary to replace or install the plastic wrap, hold the roller shaft 66 by hand and push the roller shaft 66 towards the side close to the first card block 61. Since the first connector 63 is sleeved on the shaft rod 62 and the return spring is arranged between the first connector 63 and the first card block 61, the return spring is compressed, and at this time, the roller shaft 66 can be taken out (after the roller shaft 66 is taken out, the return spring restores its deformation and the first connector 63 returns to its original position). When the plastic wrap is installed on the roller shaft 66, one end of the roller shaft 66 with the plastic wrap is pressed against the first connector 63 to compress the return spring, the other end of the roller shaft 66 is aligned with the second connector 65, and then release the hand. The return spring restores its deformation and the first connector 63 returns to its original position, and the installation of the plastic wrap can be completed.

[0074] Please refer to Figure 4 , it can be seen that in this embodiment, a start button 31 is provided on the upper shell, and the start button 31 is electrically connected to the integrated circuit board 3.

[0075] Next, please refer to Figure 4 , a charging element 9 is installed on the outer shell 1, the charging element 9 is electrically connected to the integrated circuit board 3, and a charging port 113 corresponding to the charging element 9 is provided on the outer shell 1.

[0076] When the start button 31 is pressed, the integrated circuit board controls the driving motor 71 to work and causes the melting material assembly 8 to fuse the plastic wrap (the principle is as above). In addition, a light-transmitting plate 32 is provided on one side of the start button 31, and a light-emitting diode for displaying the battery level is provided on the integrated circuit board 3. The light of the light-emitting diode passes through the light-transmitting plate 32 and is displayed outside, so that the remaining battery level of the machine can be observed. When the remaining battery level is insufficient, a USB charging cable can be externally connected at the charging port 113 to charge the power supply 2.

[0077] Please refer to Figure 2 and Figure 4 , it can be seen that in this embodiment, a relief notch 110 extending along the longitudinal direction is provided at the front end of the upper shell, and the upper end of the extension block 82 extends into the relief notch 110.

[0078] Since the heating wire on the extension block 82 needs to fuse the plastic wrap, the upper end position of the extension block 82 needs to be higher than the plastic wrap. Here, the relief notch 110 is provided for the upper end of the extension block 82 to enter.

[0079] Please refer to Figure 2 and Figure 8 , it can be seen that at least one mounting seat 17 is provided on the bottom shell along the longitudinal direction, a film guiding frame 10 is mounted on the mounting seat 17, the upper end of the film guiding frame 10 extends in the front-back direction and is located above the conductive track 4, and the extension block 82 is located in front of the film guiding frame 10.

[0080] Here, the film guiding frame 10 can guide the pulled-out plastic wrap, so that the plastic wrap can be smoothly pulled out from the film outlet 11. For the convenience of installation and disassembly of the film guiding frame 10, a notch 101 is provided on the film guiding frame 10.

[0081] Combined with the above text, the working principle of the plastic wrap automatic cutter in this embodiment is described below:

[0082] First, open the upper shell, install the plastic wrap on the roller 66 of the feeding auxiliary device 6, and then pull out the plastic wrap through the film guide frame 10 to the front end of the outer shell 1; then, cover the upper shell. At this time, the pulled end of the plastic wrap is outside the film outlet 11, and continue to pull the plastic wrap to the required length; then press the start button 31, and the integrated circuit board 3 controls the driving motor 71 to work (note that after the plastic wrap automatic cutter is powered on, there will be current on the conductive track 4 and the heating wire, and the heating wire is heated to a suitable temperature. Here, a thermostat can be used to control the final heating temperature of the heating wire). The driving motor 71 works and drives the screw rod 72 to rotate, and then drives the melting material component 8 sliding on the screw rod 72 to translate linearly until it translates to the induction switch 5 at the other end and stops moving. During this process, the heating wire on the melting material component 8 will melt the plastic wrap to achieve the cutting of the plastic wrap.

[0083] It should be noted that in this embodiment, the temperature of the heating wire needs to be higher than the melting point of the plastic wrap. The melting points of plastic wraps on the market are basically between 60 and 180 °C. For example, the melting point of PE material is about 110 °C, the melting point of PVC material is about 130 °C, the melting point of PVDC material is about 140 °C, and the melting point of PMP material is about 180 °C. Therefore, by controlling the final heating temperature of the heating wire to be higher than the melting point of the plastic wrap through a thermostat, the melting of the plastic wrap can be efficiently completed. The melting process is smokeless and odorless, and the user experience is good.

[0084] The above is only the preferred embodiment of the present invention for an automatic plastic wrap cutter, and it does not limit the patent scope of the present invention. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. An automatic cling film cutter, characterized in that: include: A housing, wherein a film outlet is provided at the front end of the housing, and an extension direction of the film outlet is set as the longitudinal direction; a power supply, fixed inside the housing; an integrated circuit board fixed inside the housing, and the power supply is electrically connected to the integrated circuit board; A material discharging auxiliary device is installed in the housing and is used for detachably installing the cling film, wherein the cling film is arranged along the length direction; A conductive track is made of a conductive material and is fixed in the housing along its length, with both ends of the conductive track being electrically connected to the power supply and the integrated circuit board, respectively; The linear drive device includes a drive motor fixed to the housing and a screw rod linked to the drive motor, the screw rod being arranged along the length direction; the melt assembly includes a main body block and an extension block fixed to the main body block, the main body block being slidably connected to the screw rod, and the main body block is provided with at least one contact point that maintains electrical contact with the conductive track, the contact point being electrically connected to a heating wire, and the heating wire is at least partially wrapped around the outside of the extension block; The cling film is in a state of being pulled out of the film outlet and ready to be melted. In the state of being ready to be melted, the linear drive device drives the melting material component to move linearly along the longitudinal direction and melts the cling film through the heating wire.

2. The automatic cling film cutter according to claim 1, characterized in that: The extension block is arranged above the main body block, and part of the heating wire is installed on the edge of the extension block.

3. The automatic cling film cutter according to claim 2, characterized in that: A sliding groove is provided at the lower end of the main body block. There are two contacts, which are respectively located on the front and rear inner groove walls of the sliding groove. The two contacts are respectively in contact with the front and rear sides of the conductive track.

4. The automatic cling film cutter according to any one of claims 1 to 3, characterized in that: Two induction switches spaced apart from each other along the length direction are provided inside the shell, the film outlet is located between the two induction switches, and the induction switches are electrically connected to the integrated circuit board. A protrusion is provided on one side of the main block, and the protrusion is used to push the spring on the induction switch.

5. The automatic cling film cutter according to claim 4, characterized in that: The housing includes a bottom shell and an upper shell hinged to the rear end of the bottom shell. The power supply and the integrated circuit board are both arranged on the upper shell. The linear drive device and the conductive track are both arranged on the bottom shell.

6. The automatic cling film cutter according to claim 5, characterized in that: The left and right ends of the bottom shell are both provided with first clamping seats, and the two first clamping seats are respectively clamped with a first clamping block and a second clamping block. The material discharging auxiliary device includes the first clamping block and the second clamping block, and further includes: A shaft rod, arranged along the length direction, with one end fixed to the first clamping block; A first connector, sleeved on the shaft; a return spring, sleeved on the shaft, with two ends of the return spring respectively abutting against the first connector and the first clamping block; A second connector is fixed on one side of the second card block; The roller is used to cooperate with the installation of the fresh-keeping film, and the two ends of the roller are respectively clamped on the first connecting head and the second connecting head.

7. The automatic cling film cutter according to claim 5, characterized in that: A start button is provided on the upper shell, and the start button is electrically connected to the integrated circuit board.

8. The automatic cling film cutter according to claim 7, characterized in that: The front end of the upper shell is provided with a clearance slot extending along the length direction, and the upper end of the extension block extends into the clearance slot.

9. The automatic cling film cutter according to any one of claims 5 to 8, characterized in that: At least one mounting seat is provided along the length of the bottom shell, a film guide frame is installed on the mounting seat, the upper end of the film guide frame extends along the front-to-back direction and is located above the conductive track, and the extension block is located in front of the film guide frame.

10. The automatic cling film cutter according to claim 1, characterized in that: A charging element is mounted on the housing, the charging element is electrically connected to the integrated circuit board, and a charging port corresponding to the charging element is provided on the housing.

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