Opening and closing type film scraping device for bubble film machine

Abstract

Disclosed in the present utility model is an opening and closing type film scraping device for a bubble film machine, comprising a mounting plate. A first scraping plate and a second scraping plate are fixed to the position of the top of the mounting plate close to one side edge. Guide plates are provided between the opposite sides of the first scraping plate and the second scraping plate. A conveying mechanism for conveying a bubble film is provided on one side of the guide plates. An inflation head is further provided at the bottom of the guide plates. An air outlet is formed in the inflation head. The first guide plate and the second guide plate are arranged between the opposite sides of the first scraping plate and the second scraping plate, and a gap is reserved between the first guide plate and the second guide plate, so that when the bubble film passes through the gap, the outer surfaces of the first guide plate and the second guide plate can have a friction straightening effect on the outer surface of the bubble film, thereby avoiding a poor sealing effect caused by wrinkles appearing during the sealing of the bubble film.

Description

An opening and closing film scraping device for a bubble machine Technical Field

[0001] The utility model belongs to the technical field of bubble film production, and particularly relates to an opening and closing film scraping device for a bubble machine. Background Art

[0002] Air cushion film, also known as bubble wrap, is made from high-quality polyethylene resin and is a widely used packaging material. Because its middle layer is filled with air, it is lightweight, elastic, and offers sound insulation, shock absorption, and abrasion resistance. This product can replace protective materials like foam plastic pellets and is the preferred choice for protective packaging for electronics, cosmetics, audio and video CDs, and other products.

[0003] Early retractable film scraping devices used in bubble machines were often quite large, expensive, and complex. Currently, the industry has developed smaller, less expensive film scraping devices. However, these scraping devices often have difficulty aligning the inflatable film roll, which can lead to poor inflation, underinflation, and / or poor sealing. This can cause film roll loss and / or premature deflation, without providing the desired cushioning effect. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] The utility model discloses an openable and closable film scraping device for a bubble machine, aiming to solve the problem that the existing film scraping device has poor inflation effect and film sealing effect on the bubble film.

[0006] (2) Technical solution

[0007] In order to solve the above problems, the utility model adopts the following technical solutions: an opening and closing film scraping device for a bubble machine, comprising a mounting plate, a first scraper and a second scraper are fixed at the top of the mounting plate near one side edge, a guide plate is arranged between the opposite sides of the first scraper and the second scraper, and a conveying mechanism that has a conveying function for the bubble film is provided on one side of the guide plate; an inflation head is also provided at the bottom of the guide plate, and an air outlet is provided on the inflation head.

[0008] Furthermore, the guide plate is provided with an inclined surface at one end and an extended surface at the other end, and both the inclined surface and the extended surface have a guiding effect on the transmission of the bubble film.

[0009] Furthermore, the guide plate includes a first guide plate and a second guide plate, a gap is formed between the first guide plate and the second guide plate, the bubble membrane is passed through the gap, and the spacing of the gap is 0.3mm-7mm.

[0010] Furthermore, an arcuate surface and a parallel surface are provided on the end surface of the first guide plate close to the gap, the arcuate surface is located at the upper end of the parallel surface, and the parallel surface is arranged corresponding to the position of the second guide plate. The arcuate surface is an outward convex arc and has an extending and smoothing effect on the bubble film.

[0011] Furthermore, the transmission mechanism includes a pressure wheel and a support wheel, the bubble film extrusion is arranged between the pressure wheel and the support wheel, and a pressure belt with a heating function is provided on the peripheral wall of the pressure wheel.

[0012] Furthermore, a movable active plate is provided at the bottom of the mounting plate, and a plurality of movable openings corresponding to the upper and lower parts of the movable plate are opened on the mounting plate. At least a portion of the support wheel passes through the movable opening and is rotatably connected to the movable plate. When the movable plate moves, it drives the support wheel and the pressure wheel closer or farther away.

[0013] Furthermore, a fixed plate is fixedly connected to the bottom of the mounting plate, and a guide rod for guiding the movement of the movable plate is provided between the fixed plate and the movable plate.

[0014] Furthermore, a buffer spring is sleeved on the guide rod, one end of the buffer spring abuts against the fixed plate, and the other end abuts against the movable plate, and the buffer spring has a moving and resetting effect on the movable plate.

[0015] Furthermore, the top of the mounting plate is rotatably connected to a handle, and the bottom of the mounting plate is rotatably connected to a "D"-shaped cam corresponding to the handle. The cam is fixedly connected to the handle, and at least a portion of the side wall of the cam abuts against the side wall of the movable plate.

[0016] Furthermore, the bottom of the movable plate and the bottom of the mounting plate are respectively provided with first gears corresponding to the positions of the support wheel and the pressure wheel and rotatably connected, and the two first gears are engaged with each other; the bottom of the mounting plate is provided with a motor, and the output end of the motor is provided with a driving gear, and the driving gear is engaged with one of the two first gears.

[0017] Furthermore, the top of the mounting plate is rotatably connected to at least two transmission wheels, and the bubble film extrusion is arranged between the two transmission wheels; the bottom of the mounting plate is provided with at least one second gear rotatably connected to the transmission wheel, and the second gear is engaged with the driving gear.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. By arranging the first guide plate and the second guide plate between the opposite sides of the first scraper and the second scraper, and leaving a gap between the first guide plate and the second guide plate, when the bubble film passes through the gap, the outer surfaces of the first guide plate and the second guide plate can form a friction straightening effect on the outer surface of the bubble film, thereby preventing the bubble film from wrinkling when it is sealed, resulting in a poor sealing effect.

[0020] 2. When adjusting the clamping force, the cam is rotated by turning the handle. When the protruding part of the cam contacts the movable plate, the movement of the movable plate can be controlled to reduce the distance between the support wheel and the clamping wheel, thereby increasing the clamping force. When resetting, it is only necessary to turn the handle in the opposite direction. At this time, the movable plate is reset under the action of the elastic force of the buffer spring; the inflation head is set at the bottom of the guide plate, so that the external bubble film is first inflated during processing, and then compressed and sealed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic top view of the three-dimensional structure of the present invention;

[0022] Figure 2 is a bottom-up perspective structural diagram of the present invention;

[0023] FIG3 is an enlarged view of point A in FIG1 of the present invention;

[0024] Figure 4 is a schematic diagram of the working principle of the present invention;

[0025] Figure 5 is a schematic diagram of the overall structure of the utility model;

[0026] Figure 6 is a second schematic diagram of the overall structure of the present invention;

[0027] Figure 7 is a third schematic diagram of the overall structure of the present invention;

[0028] Figure 8 is a top view of the present utility model;

[0029] Figure 9 is a fourth schematic diagram of the overall structure of the present invention;

[0030] FIG10 is a schematic structural diagram of the first guide plate and the second guide plate of the present invention.

[0031] Figure numerals: 1. Mounting plate; 101. First guide plate; 1011. Arc surface; 1012. Parallel surface; 102. Second guide plate; 103. Inclined surface; 104. Extended surface; 105. Fixed plate; 106. Gap; 107. Conveying mechanism; 2. Conveying wheel; 20. Bubble film; 201. Diaphragm; 202. Inflation tube; 203. Air inlet; 3. Pressure wheel; 4. Pressure belt; 5. Support wheel; 6. Handle; 7. Inflation head; 71. Air outlet; 8. First scraper; 9. Second scraper; 10. Guide plate; 11. Cam; 12. Movable plate; 13. Motor; 131. Drive gear; 14. First gear; 15. Second gear; 16. Guide rod; 17. Buffer spring; 18. Movable port. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are 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 making creative efforts are within the scope of protection of the present invention.

[0033] As shown in FIG4 , in the prior art, the bubble film 20 is formed by bonding at least two layers of diaphragms 201 together. A plurality of inflation tubes 202 and air inlets 203 connected to the inflation tubes 202 are provided inside the bubble film 20. After the inflation tubes 202 are filled with gas to expand the bubble film 20, the two layers of diaphragms 201 are hot-melt bonded at the air inlets 203 to complete the sealing operation of the air inlets 203. However, in the prior art, there is a problem of difficulty in aligning the air inlets 203 during inflation, resulting in poor inflation quality. In addition, during the hot-melt bonding process, the diaphragms 201 are prone to forming stacked wrinkles, resulting in poor sealing effect and air leakage at the air inlets 203, thereby affecting the quality of the bubble film 20 and the consumer's experience.

[0034] In order to effectively solve the defects of the above-mentioned prior art, as shown in Figures 1-8, the utility model discloses an opening and closing film scraping device for a bubble machine, including a mounting plate 1, a first scraper 8 and a second scraper 9 symmetrically arranged on the left and right sides are fixedly connected to the top of the mounting plate 1 near the front end edge, a guide plate 10 is provided between the opposite sides of the first scraper 8 and the second scraper 9, the guide plate 10 is inclined on one side near the front end and forms an inclined surface 103, and the other side is arc-shaped and forms an extension surface 104; a conveying mechanism 107 is provided on the top of the mounting plate 1 and on one side near the extension surface 104; the conveying mechanism 107 includes a pressure wheel 3 and a support wheel 5; an inflation head 7 is provided between the first scraper 8 and the second scraper 9 and at the bottom of the guide plate 10, the inflation head 7 is provided with an air outlet 71 corresponding to the air inlet 203, and the pressure wheel 3 and the support wheel 5 are symmetrically arranged on the left and right sides of the inflation head 7 respectively;

[0035] When in use, the guide plate 10 is arranged between the opposite sides of the first scraper 8 and the second scraper 9, and a gap 106 is left between the two sides of the guide plate 10 and the first scraper 8 and the second scraper 9. The two layers of the diaphragm 201 slide through the gap 106 and are jointly transmitted in the direction between the pressure wheel 3 and the support wheel 5; wherein, the inclined surface 103 of the guide plate 10 has a guiding effect on the transmission of the diaphragm 201, and at the same time, through the setting of the extended surface 104 on the guide plate 10, the guide plate 10 has a avoiding effect on the pressure wheel 3 and the support wheel 5 and a guiding effect on the diaphragm 201, so that the gap 106 is closer to the opposite surfaces of the pressure wheel 3 and the support wheel 5, and then the two diaphragms 201 are aligned and squeezed together between the pressure wheel 3 and the support wheel 5 to prevent deviation.

[0036] Specifically, a pressing belt 4 is provided on the peripheral wall of the pressing wheel 3, and the pressing belt 4 can generate heat and produce a hot melting effect on the diaphragm 201, thereby being used for bonding and connecting the two diaphragms 201; when in use, under the mutual squeezing action of the pressing wheel 3 and the supporting wheel 5, the two diaphragms 201 located between the pressing wheel 3 and the supporting wheel 5 are tightly fitted to each other, and under the hot melting action of the pressing belt 4, the two diaphragms 201 are bonded to each other, thereby achieving a sealing effect on the air inlet 203 of the bubble film 20.

[0037] Specifically, the mounting plate 1 is further provided with a plurality of movable openings 18, and a movable plate 12 movable in the left and right directions is provided at the bottom of the mounting plate 1. The movable openings 18 correspond to the movable plate 12 in vertical position, and the bottom or at least a portion of the support wheel 5 passes through the movable openings 18 and is rotatably connected to the movable plate 12.

[0038] Furthermore, the area of ​​the movable opening 18 is much larger than the cross-sectional area of ​​the portion of the support wheel 5 located within the movable opening 18, so that the movable plate 12 can drive the support wheel 5 to move synchronously, thereby achieving the separation and approach of the support wheel 5 and the pressure wheel 3;

[0039] Furthermore, the mounting plate 1 further includes a fixed plate 105 fixedly connected to the bottom of the mounting plate 1, and at least one guide rod 16 is provided between the fixed plate 105 and the movable plate 12, passing through the fixed plate 105 or one of the fixed plate 105. The guide rod 16 guides the movement of the movable plate 12, thereby enabling the movable plate 12 to move closer to and farther from the fixed plate 105.

[0040] Preferably, a buffer spring 17 is sleeved on the guide rod 16, one end of the buffer spring 17 abuts against the fixed plate 105, and the other end abuts against the movable plate 12, so that the movable plate 12 has the function of moving and resetting by the setting of the buffer spring 17;

[0041] Specifically, as shown in Figures 5-6, in order to facilitate the adjustment of the moving distance of the movable plate 12, a handle 6 is rotatably connected to the middle part of the top of the mounting plate 1, and a "D"-shaped cam 11 is rotatably connected to the bottom of the mounting plate 1. The cam 11 is fixedly connected to the handle 6 so that the cam 11 can rotate synchronously with the rotation of the handle 6. Due to the "D"-shaped structural setting, the distances between the rotation axis of the cam 11 and its respective peripheral walls are not equal;

[0042] Furthermore, in order to facilitate power transmission, the side wall of the cam 11 and the side wall of the movable plate 12 are in contact with each other. Since the cam 11 is a "D"-shaped structure, the cam 11 can push the movable plate 12 to move different distances at different rotation angles, thereby achieving adjustment of the moving distance of the movable plate 12.

[0043] During adjustment, the handle 6 is rotated to drive the cam 11 to rotate, thereby increasing the distance between the rotation axis of the cam 11 and the abutment surface of the movable plate 12, and pushing the movable plate 12 toward the fixed plate 105, thereby reducing the distance between the support wheel 5 and the pressure wheel 3, thereby increasing the pressing force of the support wheel 5 and the pressure wheel 3 on the diaphragm 201;

[0044] When resetting, it is only necessary to rotate the handle 6 in the opposite direction to reduce the distance between the rotation axis of the cam 11 and the abutment surface of the movable plate 12. At this time, the elastic force of the buffer spring 17 drives the movable plate 12 to reset, thereby increasing the distance between the support wheel 5 and the pressure wheel 3, making it easier for consumers to load or unload the bubble film 20.

[0045] Specifically, the bottom of the movable plate 12 and the bottom of the fixed plate 105 are respectively provided with a first gear 14 rotatably connected to the support wheel 5 and the pressure wheel 3, and the two first gears 14 are meshed with each other; therefore, under the meshing action of the first gears 14, the support wheel 5 and the pressure wheel 3 can achieve synchronous rotation;

[0046] Furthermore, as shown in FIG7 , a motor 13 is provided at the bottom of the mounting plate 1 , and the motor 13 further includes a driving gear 131 connected to its output shaft, and the driving gear 131 is transmission-connected (meshed) with the first gear 14 corresponding to the pressure wheel 3 . When in use, the motor 13 can drive the driving gear 131 to rotate, thereby driving the first gear 14 corresponding to the pressure wheel 3 to rotate, and then driving the first gear 14 corresponding to the support wheel 5 to rotate synchronously. That is to say, the motor 13 can drive the two first gears 14 to rotate synchronously, thereby driving the support wheel 5 and the pressure wheel 3 to rotate synchronously.

[0047] Furthermore, as shown in Figures 7-8, in order to improve the pulling force of the bubble film 20, the top of the mounting plate 1 is further rotatably connected to at least two conveying wheels 2, and the two conveying wheels 2 are symmetrically arranged on the left and right sides of the extension line A of the inflation head 7. When in use, the bubble film 20 after being inflated and hot-melted is conveyed between the two conveying wheels 2. The two conveying wheels 2 squeeze the edges of the bubble film 20 and rotate. Under the rotation of the conveying wheels 2, the conveying stability of the bubble film 20 is improved;

[0048] Preferably, at least one second gear 15 is provided at the bottom of the mounting plate 1, which corresponds to the position of the transmission wheel 2 and is rotatably connected thereto. The second gear 15 is meshedly connected to the driving gear 131, so that the driving of the motor 13 can synchronously drive the first gear 14, the second gear 15 and the driving gear 131 to rotate synchronously, thereby synchronously driving the supporting wheel 5, the pressure wheel 3 and at least one of the transmission wheels 2 to rotate synchronously, and synchronously transmitting the bubble film 20;

[0049] The motor 13 drives the supporting wheel 5 , the pressure wheel 3 and at least one of the transmission wheels 2 to rotate synchronously, thereby increasing the pulling force of the scraping device on the bubble film 20 and effectively improving the transmission stability of the bubble film 20 .

[0050] It should be noted that, in actual use, the movement of the movable plate 12 can also be pushed by means of a cylinder, an adjusting screw, etc. Therefore, under the same function of adjusting the moving distance of the movable plate 12, in this embodiment, the moving distance of the movable plate 12 is adjusted by rotating the handle 6 and the cam 11, which should not be regarded as the only limitation for adjusting the moving distance of the movable plate 12 of the utility model; at the same time, the installation positions of the first scraper 8 and the second scraper 9 and / or the support wheel 5 and the pressure wheel 3 can be interchanged with each other.

[0051] Specifically, the top of the end of the inflation head 7 away from the mounting plate 1 is provided with a plurality of air outlet holes 71 corresponding to the air inlet 203 of the bubble membrane 20. The arrangement of the air outlet holes 71 enables the inflation head 7 to perform lateral blowing, thereby improving the inflation accuracy of the inflation head 7 and the bubble membrane 20.

[0052] In another embodiment, as shown in Figures 9-10, the guide plate 10 further includes a first guide plate 101 and a second guide plate 102. The first guide plate 101 is fixedly connected to the first scraper 8, and the second guide plate 102 is fixedly connected to the second scraper 9. A gap 106 is provided between the first guide plate 101 and the second guide plate 102. The gap 106 is used to allow the two inflated diaphragms 201 that are in contact with each other to synchronously pass through between the first scraper 8 and the second scraper 9 and be transferred to between the pressing wheel 3 and the supporting wheel 5 for hot melt sealing.

[0053] During the hot-melt process, the two diaphragms 201 located between the pressing wheel 3 and the supporting wheel 5 are mutually squeezed by the pressing wheel 3 and the supporting wheel 5 and heated by the pressing wheel 3, so that the two diaphragms 201 are bonded to each other, thereby achieving the hot-melt sealing operation of the air inlet 203 of the bubble film 20;

[0054] At the same time, during the conveying process, the pressing wheel 3 and the supporting wheel 5 will pull the diaphragm 201 located in the gap 106; since the distance of the gap 106 is small and can only accommodate two layers of the diaphragms 201, the diaphragms 201 located in the gap 106 are straightened under the pulling force and the friction between the first guide plate 101 and the second guide plate 102, thereby effectively solving the problem in the prior art that the diaphragm 201 is prone to wrinkles when closed, resulting in poor sealing effect;

[0055] It should be noted that, in order to improve the convenience of installation and use, the installation positions of the first guide plate 101 and the second guide plate 102 on the first scraper 8 and the second scraper 9 can be interchanged.

[0056] Specifically, the first guide plate 101 and the second guide plate 102 are provided with the inclined surface 103 on opposite sides of one end close to the air outlet 71. The provision of the inclined surface 103 can effectively reduce the friction between the inclined surface 103 and the diaphragm 201, thereby preventing the first guide plate 101 or the second guide plate 102 from excessively scratching the diaphragm 201, while also guiding the transportation of the diaphragm 201.

[0057] Furthermore, the first guide plate 101 and the second guide plate 102 are both provided with the extension surface 104 on the side away from the air outlet 71. The extension surface 104 is provided to avoid the pressure wheel 3 and the support wheel 5 and to guide the diaphragm 201, and to make the gap 106 closer to the space between the pressure wheel 3 and the support wheel 5, thereby increasing the front-to-back length of the first guide plate 101 and the second guide plate 102, thereby increasing the contact area and force-bearing area with the diaphragm 201, so that the diaphragm 201 has a better straightening effect, further improving the wrinkle removal effect;

[0058] Specifically, the end surface of the first guide plate 101 close to the gap 106 is provided with a curved surface 1011 and a parallel surface 1012, and the curved surface 1011 is located at the upper end of the parallel surface 1012; when in use, the parallel surface 1012 is correspondingly arranged to the second guide plate 102, and the parallel surface 1012 and the second guide plate 102 perform limiting friction on the diaphragm 201 located therebetween, thereby achieving the purpose of straightening the diaphragm 201 and removing wrinkles. At the same time, the curved surface 1011 is an outwardly convex arc and has an extending and smoothing effect on the upper end portion of the diaphragm 201, thereby effectively reducing the probability of wrinkles on the diaphragm 201;

[0059] Specifically, the bottom of the first scraper 8 passes through the mounting plate 1 and is fixedly connected to the movable plate 12, so that the first scraper 8 and the first guide plate 101 can move synchronously with the movable plate 12, thereby adjusting the distance of the gap 106 between the first guide plate 101 and the second guide plate 102, effectively improving the convenience of adjusting the distance of the gap 106 and enhancing the user experience of consumers;

[0060] Furthermore, the spacing of the gap 106 is 0.3 mm to 7 mm. Consumers can adjust the distance of the gap 106 between the first guide plate 101 and the second guide plate 102 according to the thickness of the diaphragm 201, thereby making the film scraping device more practical and versatile. At the same time, by adjusting and expanding the distance of the gap 106, it is convenient for consumers to load and unload the bubble film 20 on the film scraping device, and it also has a correction effect on the position of the diaphragm 201.

[0061] The following is a detailed description of the working principle of the utility model;

[0062] In one embodiment, by first adjusting the rotation angle of the handle 6, under the action of the buffer spring 17, the movable plate 12 drives the supporting wheel 5 and the pressure wheel 3 and the two conveying wheels 2 to separate from each other, and then the bottom of the bubble film 20 is sleeved on the inflation head 7, and the air outlet 71 is correspondingly provided with the air inlet 203, and then the bubble film 20 is sequentially passed through between the supporting wheel 5 and the pressure wheel 3 and between the two conveying wheels 2, thereby completing the loading operation; secondly, the handle 6 is rotated to adjust the distance of the movable plate 12, so that the supporting wheel 5, the pressure wheel 3 and the two conveying wheels 2 synchronously squeeze the bubble film 20; under the drive of the motor 13, the supporting wheel 5, the pressure wheel 3 and the two conveying wheels 2 rotate synchronously and pull the bubble film 20;

[0063] By arranging the guide plate 10 between the first scraper 8 and the second scraper 9 on opposite sides, and leaving gaps 106 between the two sides of the guide plate 10 and the first scraper 8 and the second scraper 9, the two diaphragms 201 slide through the gaps 106 and are transferred between the pressure wheel 3 and the support wheel 5, and the two layers of the diaphragms 201 at the air inlet 203 of the bubble film 20 are bonded and sealed to each other through the hot melt action of the pressure belt 4 on the pressure wheel 3; when adjusting the pressing force on the diaphragm 201, by rotating the handle 6, the cam 11 is driven to rotate, thereby driving the movable plate 12 to move toward the fixed plate 105, thereby adjusting the distance between the support wheel 5 and the pressure wheel 3 and the pressing force of the two on the bubble film 20; when resetting, it is only necessary to rotate the handle 6 in the opposite direction and reset the movable plate 12 under the elastic force of the buffer spring 17, and the loading and unloading operations of the bubble film 20 can be carried out;

[0064] In another embodiment, the first guide plate 101 and the second guide plate 102 are arranged between the first scraper 8 and the second scraper 9, the gap 106 is arranged between the first guide plate 101 and the second guide plate 102, and the two layers of the diaphragm 201 are fitted in the gap 106 and transmitted in the direction between the support wheel 5 and the pressure wheel. Since the distance of the gap 106 is small, the friction force or extrusion force of the first guide plate 101 and the second guide plate 102 on the diaphragm 201 is increased. Under the synchronous transmission tension of the support wheel 5, the pressure wheel 3 and the two transmission wheels 2 and the action of the friction force, the diaphragm 201 located in the gap 106 is straightened to obtain the effect of removing wrinkles, thereby avoiding the problem of overlapping wrinkles when the two layers of the diaphragm 201 are transmitted to the pressure belt 4. Therefore, by setting the first guide plate 101 and the second guide plate 102, the hot melt sealing effect is further improved to prevent the bubble film 20 from leaking.

[0065] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

[0066] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An openable film scraping device for a bubble machine, comprising a mounting plate (1), characterized in that: A first scraper (8) and a second scraper (9) are fixed to the top of the mounting plate (1) near one side edge, a guide plate (10) is arranged between the first scraper (8) and the second scraper (9) on opposite sides, and a conveying mechanism (107) having a conveying function for the bubble film (20) is arranged on one side of the guide plate (10); an inflation head (7) is also arranged at the bottom of the guide plate (10), and an air outlet hole (71) is arranged on the inflation head (71).

2. According to claim 1, an open and close film scraping device for a bubble machine is characterized in that: The guide plate (10) is provided with an inclined surface (103) at one end and an extended surface (104) at the other end, and both the inclined surface (103) and the extended surface (104) have a guiding effect on the conveyance of the bubble film (20).

3. The opening and closing film scraping device for a bubble machine according to claim 2, characterized in that: The guide plate (10) comprises a first guide plate (101) and a second guide plate (102), a gap (106) is formed between the first guide plate (101) and the second guide plate (102), the bubble membrane (20) is inserted into the gap (106), and the spacing of the gap (106) is 0.3 mm-7 mm.

4. The opening and closing film scraping device for a bubble machine according to claim 3, characterized in that: An arcuate surface (1011) and a parallel surface (1012) are provided on the end surface of the first guide plate (101) close to the gap (106); the arcuate surface (1011) is located at the upper end of the parallel surface (1012); the parallel surface (1012) and the second guide plate (102) are arranged in a position corresponding to each other; the arcuate surface (1011) is an outwardly convex arc and has an effect of stretching and smoothing the bubble membrane (20).

5. The opening and closing film scraping device for a bubble machine according to claim 1, characterized in that: The transmission mechanism (107) comprises a pressure wheel (3) and a support wheel (5), the bubble membrane (20) is extruded and arranged between the pressure wheel (3) and the support wheel (5), and a pressure belt (4) with a heat generating function is provided on the peripheral wall of the pressure wheel (3).

6. The opening and closing film scraping device for a bubble machine according to claim 5, characterized in that: A movable active plate (12) is provided at the bottom of the mounting plate (1), and a plurality of movable openings (18) corresponding to the upper and lower portions of the movable plate (12) are provided on the mounting plate (1). At least a portion of the support wheel (5) passes through the movable opening (18) and is rotatably connected to the movable plate (12). When the movable plate (12) moves, it drives the support wheel (5) and the clamping wheel (3) to move closer to or farther away from each other.

7. The opening and closing film scraping device for a bubble machine according to claim 6, characterized in that: A fixed plate (105) is fixedly connected to the bottom of the mounting plate (1), a guide rod (16) having a guiding function for the movement of the movable plate (12) is provided between the fixed plate (105) and the movable plate (12), and a buffer spring (17) having a moving and restoring function for the movable plate (12) is sleeved on the guide rod (16).

8. The opening and closing film scraping device for a bubble machine according to claim 7, characterized in that: The top of the mounting plate (1) is rotatably connected to a handle (6), and the bottom of the mounting plate (1) is rotatably connected to a "D"-shaped cam (11) corresponding to the handle (6); the cam (11) is fixedly connected to the handle (6), and at least a portion of the side wall of the cam (11) abuts against the side wall of the movable plate (12).

9. The opening and closing film scraping device for a bubble machine according to claim 5, characterized in that: The bottom of the movable plate (12) and the bottom of the mounting plate (1) are respectively provided with first gears (14) corresponding to the positions of the support wheel (5) and the pressure wheel (3) and rotatably connected thereto, and the two first gears (14) are meshed with each other; the bottom of the mounting plate (1) is provided with a motor (13), and the output end of the motor (13) is provided with a driving gear (131), and the driving gear (131) is meshed with one of the two first gears (14).

10. The opening and closing film scraping device for a bubble machine according to claim 9, characterized in that: The top of the mounting plate (1) is rotatably connected to at least two transmission wheels (2), and the bubble film (20) is extruded and arranged between the two transmission wheels (2); the bottom of the mounting plate (1) is provided with at least one second gear (15) rotatably connected to the transmission wheels (2), and the second gear (15) is meshed with the driving gear (131).

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