Film strip attaching device

Abstract

The utility model discloses a film strip attaching device which comprises a mounting plate, a roller assembly, a film strip conveying assembly, a cutting and pressing assembly, a heat insulation part and a heating part, the film strip conveying assembly is arranged on the mounting plate, the film strip conveying assembly can vertically convey film strips to the roller assembly, the cutting and pressing assembly is arranged on the mounting plate, and the heat insulation part is arranged on the roller assembly. Part of the roller assembly is connected with the mounting plate, the heating piece is arranged on the mounting plate adjacent to the roller assembly, the cutting and pressing assembly is arranged on the mounting plate adjacent to the film strip conveying assembly, the heat insulation piece is arranged on the mounting plate, and the heat insulation piece is arranged on the mounting plate. The heat insulation part is located between the heating part and the cutting and pressing assembly. According to the technical scheme, the problem that the film cutting effect of the pneumatic scissors is affected due to the fact that the adhesive is prone to being attached to the surface of the operated pneumatic scissors due to the fact that the temperature of the surrounding environment can be increased when the adhesive on the film strip is melted at the air outlet of the air heater in the related technology can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic component production, in particular to a film strip attaching device. Background Art

[0002] The gap film laminating equipment is used to lay multiple film strips on any one of the protective parts on both sides of the photovoltaic module and on the end faces facing multiple battery strings in a preset arrangement to ensure the effect of gap filling in the subsequent packaging process, wherein the protective plate refers to the photovoltaic glass or backplane in the photovoltaic module.

[0003] Among them, the gap film laminating equipment completes the film strip laying on the protective plate through multiple sets of film laminating mechanisms. The film laminating mechanisms include a pressing roller, a film strip roll conveyor, a hot air blower and a pneumatic scissors. The film strip output by the film strip roll conveyor is pressed on the glass by the pressing roller. The hot air blower heats the part after the starting section of the film strip to make it sticky. The pressing roller rolls on the glass to press the heated film strip to bond it to the protective plate. The pneumatic scissors are arranged adjacent to the hot air blower and cut after the film strip is laid on the protective plate. In the above structure, the air outlet of the hot air blower can not only melt the glue on the film strip, but also increase the temperature of the surrounding environment. Since the pneumatic scissors are adjacent to the hot air blower, the surface of the pneumatic scissors after cutting the film strip is easily adhered to glue, thereby affecting the film cutting effect of the pneumatic scissors. Utility Model Content

[0004] The purpose of the utility model is to provide a film strip attaching device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a film strip attaching device, comprising a mounting plate, a roller assembly, a film strip conveying assembly, a cutting and pressing assembly, a thermal insulation member and a heating member, wherein the film strip conveying assembly is arranged on the mounting plate, the film strip conveying assembly can vertically convey the film strip to the roller assembly, a portion of the roller assembly is connected to the mounting plate, the heating member is arranged on the mounting plate adjacent to the roller assembly, the cutting and pressing assembly is arranged on the mounting plate adjacent to the film strip conveying assembly, the thermal insulation member is arranged on the mounting plate, and the thermal insulation member is located between the heating member and the cutting and pressing assembly.

[0006] Preferably, the film strip conveying assembly includes a film supply assembly, a guide cylinder and a rotating shaft. The film supply assembly and the guide cylinder are arranged on the mounting plate at intervals in the vertical direction. The guide cylinder is provided with a through hole. The rotating shaft is rotatably arranged in the through hole. The through hole and the rotating shaft can form a guide channel.

[0007] Preferably, the cutting and pressing assembly includes a first driving member, a cutting knife and an elastic deformable member, the guide cylinder is provided with a film pressing hole and a film cutting hole, the film pressing hole and the film cutting hole are both connected to the through hole, the first driving member is arranged on the mounting plate, the cutting knife and the elastic deformable member are both arranged on the driving end of the first driving member, the pressing end of the elastic deformable member faces the film pressing hole, and the cutting end of the cutting knife faces the film cutting hole.

[0008] Preferably, along the driving direction of the first driving member, the distance between the pressing end and the end surface of the film pressing hole is smaller than the distance between the cutting end and the end surface of the film cutting hole.

[0009] Preferably, the film supply assembly includes a second driving member, a conveying wheel and a pressure wheel assembly, the second driving member is arranged on the mounting plate, the conveying wheel is arranged at the driving end of the second driving member, the second driving member can drive the conveying wheel to rotate, the pressure wheel assembly is arranged on the mounting plate adjacent to the conveying wheel, and the film strip can be located between the conveying wheel and the pressure wheel assembly and limitedly matched.

[0010] Preferably, the pressing wheel assembly includes a film pressing wheel, a connecting plate and a third driving member, the third driving member is arranged on the mounting plate, the connecting plate is connected to the driving end of the third driving member, and the film pressing wheel is rotatably connected to the connecting plate.

[0011] Preferably, it also includes an elastic member, one end of the connecting plate is rotatably connected to the mounting plate, the other end of the connecting plate is connected to the driving end of the third driving member, one end of the elastic member is connected to the mounting plate, and the other end of the elastic member is connected to the other end of the connecting plate.

[0012] Preferably, the roller assembly comprises a floating cylinder and a pressing roller, the floating cylinder is arranged on the mounting plate, and the pressing roller is rotatably arranged on a driving end of the floating cylinder.

[0013] Preferably, a color detection sensor is further included, and the color detection sensor is disposed at the driving end of the floating cylinder adjacent to the pressing roller.

[0014] Preferably, it also includes a guide rail, a weight wheel and a guide wheel, wherein there are multiple guide wheels, the multiple guide wheels are rotatably disposed on the mounting plate, the guide rail is vertically disposed on the mounting plate, the weight wheel is slidably matched with the guide rail, and the film strip can be wrapped around the multiple guide wheels and the weight wheel and vertically moved to the film strip conveying assembly, wherein the weight wheel is adjacent to one of the multiple guide wheels adjacent to the film strip conveying assembly.

[0015] The technical solution adopted in this application can achieve the following beneficial effects:

[0016] In a film strip attaching device disclosed in the present application, a film strip conveying assembly is vertically arranged on a mounting plate, the film strip conveying assembly is used to convey the film strip to a roller assembly, part of the roller assembly is connected to the mounting plate, a heating element is arranged on the mounting plate adjacent to the roller assembly, the heating element is used to heat the portion of the film strip located between the roller assembly and the film strip conveying assembly, the roller assembly is used to press the film strip heated by the heating element and lay it on the glass or back plate of the photovoltaic component, a cutting and pressing assembly is arranged on the mounting plate adjacent to the film strip conveying assembly, the cutting and pressing assembly is used to cut the film strip into two sections and press and fix the section away from the roller assembly, a heat insulation element is arranged on the mounting plate, the heat insulation element is located between the heating element and the cutting and pressing assembly, the heat insulation element is used to isolate the heat of the heating element from overflowing to the cutting and pressing assembly during the process of heating the film strip.

[0017] During the use of the film strip attaching device, the film strip conveying assembly conveys the film strip to the roller assembly, the heating element heats the portion of the film strip located between the roller assembly and the film strip conveying assembly, the roller assembly presses the film strip heated by the heating element and lays it on the glass or back panel of the photovoltaic module, and when the film strip of a preset length is laid at a preset position on the glass or back panel, the cutting and pressing assembly cuts the film strip into two sections and presses and fixes the section away from the roller assembly, and the section close to the roller assembly is heated, pressed, and laid on the glass or back panel.

[0018] The above structure is arranged on the mounting plate through the cutting and pressing component adjacent to the film strip conveying component, and the heat insulating component is located between the heating component and the cutting and pressing component, so that the cutting and pressing component is away from the heating component while not affecting its function. The heat insulating component prevents the heat from overflowing to the cutting and pressing component during the process of heating the film strip, thereby ensuring the cutting effect of the cutting and pressing component. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 It is a front view of the film strip attaching device disclosed in the embodiment of the present application;

[0021] Figure 2 It is a structural schematic diagram of the film strip attaching device disclosed in the embodiment of the present application;

[0022] Figure 3 This is a cross-sectional view of the cooperation between the guide cylinder and the rotating shaft disclosed in the embodiment of the present application.

[0023] In the figure: 100, mounting plate; 200, roller assembly; 210, floating cylinder; 220, pressing roller; 310, film supply assembly; 311, second driving member; 312, conveying wheel; 313, pressing wheel assembly; 313a, film pressing wheel; 313b, connecting plate; 320, guide cylinder; 330, rotating shaft; 400, cutting and pressing assembly; 410, first driving member; 420, cutting knife; 430, elastic deformation member; 500, heat insulation member; 600, heating member; 710, elastic member; 720, color detection sensor; 810, guide rail; 820, weight wheel; 830, guide wheel. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0025] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0027] like Figures 1 to 3 As shown, the present application discloses a film strip attaching device, which includes a mounting plate 100, a roller assembly 200, a film strip conveying assembly, a cutting and pressing assembly 400, a thermal insulation member 500 and a heating member 600, wherein the mounting plate 100 can provide an installation base for the roller assembly 200, the film strip conveying assembly, the cutting and pressing assembly 400, the thermal insulation member 500 and the heating member 600.

[0028] Specifically, the film strip conveying assembly is arranged on the mounting plate 100, and the film strip conveying assembly can vertically convey the film strip to the roller assembly 200. Part of the roller assembly 200 is connected to the mounting plate 100, and the heating element 600 is arranged on the mounting plate 100 adjacent to the roller assembly 200. The heating element 600 is used to heat the film strip located between the roller assembly 200 and the film strip conveying assembly. The roller assembly 200 is used to press the film strip heated by the heating element 600 and lay it on the photovoltaic module. The cutting and pressing assembly 400 is disposed on the glass or back panel adjacent to the film strip conveying assembly on the mounting plate 100. The cutting and pressing assembly 400 is used to cut the film strip into two sections and press and fix the section away from the roller assembly 200. The heat insulating member 500 is disposed on the mounting plate 100. The heat insulating member 500 is located between the heating member 600 and the cutting and pressing assembly 400. The heat insulating member 500 is used to isolate the heat of the heating member 600 from overflowing to the cutting and pressing assembly 400 during the process of heating the film strip.

[0029] During the use of the film strip attaching device, the film strip conveying assembly conveys the film strip to the roller assembly 200, the heating element 600 heats the portion of the film strip located between the roller assembly 200 and the film strip conveying assembly, the roller assembly 200 presses the film strip heated by the heating element 600 and lays it on the glass or back panel of the photovoltaic module, and when the film strip of a preset length is laid on the preset position of the glass or back panel, the cutting and pressing assembly 400 cuts the film strip into two sections and presses and fixes the section away from the roller assembly 200, and the section close to the roller assembly 200 is heated, pressed, and laid on the glass or back panel.

[0030] The above structure is arranged on the mounting plate 100 through the cutting and pressing component 400 adjacent to the film strip conveying component, and the heat insulating component 500 is located between the heating component 600 and the cutting and pressing component 400, so that the cutting and pressing component 400 is kept away from the heating component 600 while not affecting its function. The heat insulating component 500 prevents the heat of the heating component 600 from overflowing to the cutting and pressing component 400 during the process of heating the film strip, thereby ensuring the cutting effect of the cutting and pressing component 400.

[0031] In an embodiment of the present application, the film strip conveying assembly may include a film supply assembly 310, a guide cylinder 320 and a rotating shaft 330. Specifically, the film supply assembly 310 and the guide cylinder 320 are arranged on the mounting plate 100 at intervals in the vertical direction. The guide cylinder 320 is provided with a through hole, and the rotating shaft 330 is rotatably arranged in the through hole. The through hole and the rotating shaft 330 can form a guide channel.

[0032] The film supply assembly 310 transports the film strip to the guide cylinder 320, and the film strip passes through the through hole and is limited by the guide channel. At the same time, the film strip can contact and roll with the rotating shaft 330, thereby preventing the film strip from getting stuck or bent during the transportation process, thereby ensuring the continuous transportation of the film strip.

[0033] In a further technical solution, the cutting and pressing assembly 400 may include a first driving member 410, a cutting knife 420 and an elastic deformable member 430. Specifically, the guide cylinder 320 is provided with a film pressing hole and a film cutting hole, both of which are connected to the through hole. The first driving member 410 is arranged on the mounting plate 100, and the cutting knife 420 and the elastic deformable member 430 are both arranged on the driving end of the first driving member 410. The pressing end of the elastic deformable member 430 faces the film pressing hole, and the cutting end of the cutting knife 420 faces the film cutting hole.

[0034] The first driving member 410 can drive the cutting knife 420 and the elastic deformation member 430 to move back and forth, thereby forming the film strip into two sections and pressing and fixing the section away from the roller assembly 200, thereby facilitating the subsequent conveying of the film strip by the film supply assembly 310.

[0035] In addition, the first driving member 410 may be a telescopic air cylinder, a telescopic electric cylinder, etc., and this application does not impose any limitation on this.

[0036] In another technical solution, along the driving direction of the first driving member 410, the distance between the pressing end and the end face of the film pressing hole can be smaller than the distance between the cutting end and the end face of the film cutting hole, so that the elastic deformation member 430 can press the film strip before the cutting knife 420 cuts the film strip. As the elastic deformation member 430 is deformed, the cutting end of the cutting knife 420 can cut the film strip.

[0037] In addition, the elastic deformation member 430 can be an independent structure such as a rubber column, a spring, etc., or it can be a combination of a spring and a pressing rod elastically matched, and this application does not impose any limitation on this.

[0038] In an embodiment of the present application, the film supply assembly 310 may include a second driving member 311, a conveying wheel 312 and a pressure wheel assembly 313. Specifically, the second driving member 311 is arranged on the mounting plate 100, and the conveying wheel 312 is arranged at the driving end of the second driving member 311. The second driving member 311 can drive the conveying wheel 312 to rotate, and the pressure wheel assembly 313 is arranged on the mounting plate 100 adjacent to the conveying wheel 312. The film strip can be located between the conveying wheel 312 and the pressure wheel assembly 313, and limited in position.

[0039] During the use of the film supply assembly 310, the film strip is located between the conveying wheel 312 and the pressure wheel assembly 313, and is limitedly matched. The second driving member 311 drives the conveying wheel 312 to rotate, and the film strip moves vertically to the guide channel as the conveying wheel 312 rotates.

[0040] In addition, the second driving member 311 can be a stepping motor, a rotary cylinder, etc., and this application does not impose any limitation on this.

[0041] In a further technical solution, the pressing wheel assembly 313 may include a film pressing wheel 313a, a connecting plate 313b and a third driving member. Specifically, the third driving member is arranged on the mounting plate 100, the connecting plate 313b is connected to the driving end of the third driving member, the film pressing wheel 313a is rotatably connected to the connecting plate 313b, and the third driving member can drive the connecting plate 313b away from or close to the conveying wheel 312, so that the film pressing wheel 313a is away from or close to the conveying wheel 312.

[0042] When the film pressing wheel 313a is close to the conveying wheel 312, the film pressing wheel 313a can form a limiting fit with the conveying wheel 312 to limit the film strip. If the second driving member 311 stops driving the conveying wheel 312, the film strip can be fixed relative to the conveying wheel 312. When the film pressing wheel 313a is far away from the conveying wheel 312, it can prevent the film laying rate of the roller assembly 200 from being greater than the rotation speed of the conveying wheel 312, and the limiting fit of the film strip with the conveying wheel 312 and the pressing wheel assembly 313 will cause the film strip to be excessively pulled or broken.

[0043] In addition, the third driving member can be a telescopic cylinder, a telescopic electric cylinder, etc., and this application does not impose any restrictions on this.

[0044] In another technical solution, the disclosed film strip attaching device may also include an elastic member 710. Specifically, one end of the connecting plate 313b is rotatably connected to the mounting plate 100, the other end of the connecting plate 313b is connected to the driving end of the third driving member, one end of the elastic member 710 is connected to the mounting plate 100, and the other end of the elastic member 710 is connected to the other end of the connecting plate 313b.

[0045] Since the speed at which the roller assembly 200 presses the film strip is much faster than the speed at which the second driving member 311 drives the conveying wheel 312 to rotate, in order to prevent the film pressing wheel 313a and the conveying wheel 312 from being limited in the horizontal direction with the film strip, which may cause the film strip to be tightened and easy to tear, when the roller assembly 200 lays the film strip on the back panel of the photovoltaic module, the third driving member drives the film pressing wheel 313a away from the conveying wheel 312; one end of the connecting plate 313b is rotatably connected to the mounting plate 100, and the other end of the connecting plate 313b is connected to the driving end of the third driving member, so that the film pressing wheel 313a is reset to the position when it is limited in the film strip, thereby ensuring that the film pressing wheel 313a and the conveying wheel 312 are limited in the horizontal direction with the film strip.

[0046] In order to prevent the film pressing wheel 313a and the conveying wheel 312 from being limited in the horizontal direction with the film strip, which may cause the film strip to be tightened and easy to tear, when the roller assembly 200 lays the film strip on the back panel of the photovoltaic module, the third driving member drives the film pressing wheel 313a away from the conveying wheel 312; and before the cutting and pressing assembly 400 cuts the film, the second driving member 311 stops driving the conveying wheel 312 to rotate, and the elastic member 710 contracts due to the elastic potential energy. At the same time, the third driving member drives the film pressing wheel 313a to approach the conveying wheel 312, so that the film strip can be fixed under the squeezing of the film pressing wheel 313a and the conveying wheel 312.

[0047] In addition, the elastic member 710 may be a tension spring, an elastic rubber strip, etc., and this application does not impose any limitation on this.

[0048] In an embodiment of the present application, the roller assembly 200 may include a floating cylinder 210 and a pressing roller 220. Specifically, the floating cylinder 210 is disposed on the mounting plate 100, and the pressing roller 220 is rotatably disposed on the driving end of the floating cylinder 210. The pressing roller 220 is extended by driving the floating cylinder 210 so that when the pressing roller 220 is laying the film strip, the pressed part of the film strip is always kept in contact with the glass or the back panel to avoid bubbles in the film strip when it is laid.

[0049] In a further technical solution, the disclosed film strip attaching device may also include a color detection sensor 720. Specifically, the color detection sensor 720 is arranged at the driving end of the floating cylinder 210 adjacent to the pressing roller 220. The color detection sensor 720 can determine whether the surface of the pressing roller 220 is adhered to the adhesive of the film strip by detecting the surface color of the pressing roller 220, thereby facilitating maintenance personnel to stop the machine for maintenance of the pressing roller 220.

[0050] In an embodiment of the present application, the disclosed film strip attaching device may further include a guide rail 810, a weight wheel 820 and a guide wheel 830. Specifically, there are multiple guide wheels 830, and the multiple guide wheels 830 are rotatably disposed on the mounting plate 100. The guide rail 810 is vertically disposed on the mounting plate 100. The weight wheel 820 is slidably matched with the guide rail 810. The film strip can be wrapped around the multiple guide wheels 830 and the weight wheel 820 and vertically moved to the film strip conveying assembly, wherein the weight wheel 820 is adjacent to one of the multiple guide wheels 830 adjacent to the film strip conveying assembly.

[0051] 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. A film strip attaching device, characterized in that: It includes a mounting plate (100), a roller assembly (200), a film strip conveying assembly, a cutting and pressing assembly (400), a heat insulating member (500) and a heating member (600), wherein the film strip conveying assembly is arranged on the mounting plate (100), the film strip conveying assembly can vertically convey the film strip to the roller assembly (200), a part of the roller assembly (200) is connected to the mounting plate (100), the heating member (600) is arranged on the mounting plate (100) adjacent to the roller assembly (200), the cutting and pressing assembly (400) is arranged on the mounting plate (100) adjacent to the film strip conveying assembly, the heat insulating member (500) is arranged on the mounting plate (100), and the heat insulating member (500) is located between the heating member (600) and the cutting and pressing assembly (400).

2. The film strip attaching device according to claim 1, characterized in that: The film strip conveying assembly includes a film supply assembly (310), a guide cylinder (320) and a rotating shaft (330). The film supply assembly (310) and the guide cylinder (320) are arranged on the mounting plate (100) at intervals in the vertical direction. The guide cylinder (320) is provided with a through hole, and the rotating shaft (330) is rotatably arranged in the through hole. The through hole and the rotating shaft (330) can form a guide channel.

3. The film strip attaching device according to claim 2, characterized in that: The cutting and pressing assembly (400) comprises a first driving member (410), a cutting knife (420) and an elastic deformable member (430); the guide cylinder (320) is provided with a film pressing hole and a film cutting hole; the film pressing hole and the film cutting hole are both connected to the through hole; the first driving member (410) is arranged on the mounting plate (100); the cutting knife (420) and the elastic deformable member (430) are both arranged on the driving end of the first driving member (410); the pressing end of the elastic deformable member (430) faces the film pressing hole; and the cutting end of the cutting knife (420) faces the film cutting hole.

4. The film strip attaching device according to claim 3, characterized in that: In the driving direction of the first driving member (410), the distance between the pressing end and the end surface of the film pressing hole is smaller than the distance between the cutting end and the end surface of the film cutting hole.

5. The film strip attaching device according to claim 2, characterized in that: The film supply assembly (310) includes a second driving member (311), a conveying wheel (312) and a pressure wheel assembly (313); the second driving member (311) is arranged on the mounting plate (100); the conveying wheel (312) is arranged at the driving end of the second driving member (311); the second driving member (311) can drive the conveying wheel (312) to rotate; the pressure wheel assembly (313) is arranged on the mounting plate (100) adjacent to the conveying wheel (312); the film strip can be located between the conveying wheel (312) and the pressure wheel assembly (313) and limitedly matched.

6. The film strip attaching device according to claim 5, characterized in that: The pressing wheel assembly (313) comprises a film pressing wheel (313a), a connecting plate (313b) and a third driving member, wherein the third driving member is arranged on the mounting plate (100), the connecting plate (313b) is connected to the driving end of the third driving member, and the film pressing wheel (313a) is rotationally connected to the connecting plate (313b).

7. The film strip attaching device according to claim 6, characterized in that: It also includes an elastic member (710), one end of the connecting plate (313b) is rotatably connected to the mounting plate (100), the other end of the connecting plate (313b) is connected to the driving end of the third driving member, one end of the elastic member (710) is connected to the mounting plate (100), and the other end of the elastic member (710) is connected to the other end of the connecting plate (313b).

8. The film strip attaching device according to claim 1, characterized in that: The roller assembly (200) comprises a floating cylinder (210) and a pressing roller (220), wherein the floating cylinder (210) is arranged on the mounting plate (100), and the pressing roller (220) is rotatably arranged on the driving end of the floating cylinder (210).

9. The film strip attaching device according to claim 8, characterized in that: It also includes a color detection sensor (720), which is disposed at the driving end of the floating cylinder (210) adjacent to the pressing roller (220).

10. The film strip attaching device according to claim 1, characterized in that: It also includes a guide rail (810), a weight wheel (820) and a guide wheel (830), wherein there are multiple guide wheels (830), and the multiple guide wheels (830) are rotatably disposed on the mounting plate (100), and the guide rail (810) is vertically disposed on the mounting plate (100), and the weight wheel (820) is slidably matched with the guide rail (810), and the film strip can be wrapped around the multiple guide wheels (830) and the weight wheel (820) and vertically moved to the film strip conveying assembly, wherein the weight wheel (820) is adjacent to one of the multiple guide wheels (830) adjacent to the film strip conveying assembly.

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