Keyboard film composite molding equipment

Abstract

This application discloses keyboard film composite molding equipment, including a frame, a first film layer output device located on the upper left side of the frame, an adsorption conveyor line located in front of the first film layer output device along the transverse direction of the frame, a second film layer output device located in front of the adsorption conveyor line, a second film layer mounting device located between the first film layer output device and the second film layer output device, a third film layer output device located on the right rear side of the adsorption conveyor line, and a third film layer mounting device located on the right front side of the adsorption conveyor line. This application not only achieves the goal of highly integrated and automated production, but also greatly improves the production efficiency of keyboard films, thereby significantly reducing the production costs of manufacturers and promoting further upgrading and transformation of keyboard film production technology to meet actual needs.

Description

Technical field

[0001] The present application relates to the technical field of keyboard films, and more specifically to a keyboard film composite molding device. [Background Technology]

[0002] Keyboard films are mainly used to protect computer keyboards. They can not only prevent dust or other debris from falling into the keyboard, but also prevent hand sweat from staining the keyboard. They are very practical.

[0003] However, the current keyboard film production equipment has a low degree of automation, and most of them are still single-process production, which cannot be integrated into fully automatic production, and thus cannot further improve production efficiency. For this reason, technical personnel in this field urgently need to develop a keyboard film composite molding equipment that has both high automation and can greatly improve production efficiency to meet actual usage needs. [Summary of the invention]

[0004] The present application aims to solve the above-mentioned existing technical problems and provide a keyboard film composite molding device.

[0005] To solve the above technical problems, this application is implemented through the following technical solutions:

[0006] Keyboard film composite molding equipment, including:

[0007] frame;

[0008] A first film layer output device, which is provided on the upper left side of the frame and is used to output the first film layer;

[0009] an adsorption conveying line, which is arranged in the transverse direction of the frame in front of the first film layer output device and is used for adsorbing and conveying the first film layer output by the first film layer output device;

[0010] A second film layer output device, which is provided at the front side of the adsorption conveying line and is used to output the second film layer;

[0011] A second film layer mounting device is provided between the first film layer output device and the second film layer output device, and is used to grab the second film layer output by the second film layer output device and mount the second film layer on the upper side of the first film layer;

[0012] A third film layer output device, which is provided at the right rear side of the adsorption conveying line and is used to output the third film layer;

[0013] The third film layer mounting device is arranged at the right front side of the adsorption conveying line, and is used for grabbing the third film layer outputted by the third film layer output device and mounting the third film layer on the upper side of the second film layer.

[0014] In the keyboard film composite molding device described above, the first film layer output device includes:

[0015] A first mounting frame is provided on the left rear side of the adsorption conveyor line along the transverse direction of the positioning conveyor line;

[0016] A first film material strip output mechanism, which is provided on the first mounting frame and is used to output the first film material strip from back to front;

[0017] A first film layer protective film rewinding mechanism, which is provided on the upper side of the first film layer material strip output mechanism and is used to rewind the first film layer protective film from front to back;

[0018] The first film layer peeling mechanism is arranged between the first film layer material strip output mechanism and the first film layer protective film winding mechanism, and is used for peeling off the first film layer on the output first film layer material strip.

[0019] In the keyboard film composite molding device described above, the first film layer peeling mechanism includes:

[0020] A first film layer stripping plate is provided on the first mounting frame along the transverse direction of the adsorption conveyor line and is located above the adsorption conveyor line, and a smooth transition curved surface is provided between the upper side and the lower side thereof for smoothly transitioning the first film layer strip;

[0021] The first film layer protective film regulating and limiting group is arranged on the left and right sides of the upper part of the first film layer stripping plate, and is used for regulating and limiting the first film layer protective film.

[0022] The keyboard film composite molding device as described above, wherein the first film layer peeling mechanism further comprises:

[0023] A front and rear telescopic drive group, which is arranged on the right side of the first mounting frame;

[0024] The middle connection group is connected between the first film layer stripping plate and the front-back telescopic driving group, and is driven by the front-back telescopic driving group to drive the first film layer stripping plate to move forward and backward.

[0025] In the keyboard film composite molding device described above, the first film layer material strip output mechanism includes:

[0026] A first film layer material strip roll placement rack, which is provided at the left rear side of the first mounting frame and is used to place the first film layer material strip roll;

[0027] a first film layer material strip pressing roller feeding group, which is arranged between the first film layer material strip roll placement rack and the first film layer stripping plate, and is used for pressing the first film layer material strip by the roller feeding group;

[0028] A first film layer material strip tensioning roller assembly, which is provided between the first film layer material strip pressing assembly and the first film layer stripping plate, and is used for tensioning the first film layer material strip;

[0029] The first film layer protective film winding mechanism includes:

[0030] A first film layer protective film winding rack is provided on the upper side of the first film layer material strip roll placement rack and is used to wind up the first film layer protective film;

[0031] A first film layer protective film pressing roller feeding group is provided on the front side of the first film layer protective film winding frame and is used for pressing the first film layer protective film;

[0032] The first film layer protective film tensioning roller group is arranged at the front and rear sides of the first film layer protective film pressing roller group, and is used for tensioning the first film layer protective film.

[0033] As described above, in the keyboard film composite molding device, the first film layer material strip output mechanism further includes a displacement sensor provided on the first film layer material strip pinching roller assembly for monitoring the output distance of the first film layer material strip.

[0034] As for the keyboard film composite molding equipment described above, the first film layer material strip output mechanism also includes a disconnection sensor provided on the first mounting frame and located in front of the first film layer protective film pressing roller feeding group for detecting whether the first film layer protective film is disconnected.

[0035] As described above, the keyboard film composite molding equipment has a plurality of negative pressure suction holes on the adsorption conveying line, and an external negative pressure connection group is provided which is connected to the negative pressure suction holes and can be externally connected to a negative pressure device so that the negative pressure suction holes can negatively pressure adsorb the first film layer.

[0036] The keyboard film composite molding device as described above, wherein the second film layer mounting device includes:

[0037] a supporting frame, which is arranged on the left side of the second film layer output device along the longitudinal direction of the adsorption conveying line;

[0038] A longitudinal movement mechanism, which is arranged on the upper side of the support frame along the longitudinal direction of the support frame;

[0039] a transverse movement mechanism, which is arranged on the upper side of the longitudinal movement mechanism along the transverse direction of the support frame and is driven by the longitudinal movement mechanism to move back and forth;

[0040] A vertical lifting mechanism, which is arranged in the vertical direction of the support frame in front of the horizontal moving mechanism and is driven by the horizontal moving mechanism to move back and forth left and right;

[0041] The negative pressure adsorption mechanism is arranged at the lower side of the vertical lifting mechanism, and is used for negatively adsorbing the second film layer output by the second film layer output device and attaching the second film layer to the upper side of the first film layer.

[0042] The keyboard film composite molding device as described above, wherein the negative pressure adsorption mechanism includes:

[0043] A connecting plate connected to the lower side of the vertical lifting mechanism along the transverse direction of the adsorption conveying line;

[0044] A negative pressure suction plate is provided on the lower side of the connecting plate, and has a cavity formed therein, and a negative pressure adsorption hole in communication with the cavity formed on the lower side;

[0045] The negative pressure suction group is arranged on the upper side of the connecting plate, and the lower end of the negative pressure suction group is connected with the cavity, and is used for sucking the gas in the cavity so that the negative pressure adsorption holes adsorb the second film layer.

[0046] Compared with the prior art, the above application has the following advantages:

[0047] 1. The keyboard film composite molding equipment of the present application outputs the light-shielding film through the first film layer output device, which is then adsorbed and moved to the right for transportation through the adsorption conveyor line, and then the light-guiding film is output through the second film layer output device, and then the light-guiding film is grabbed by the second film layer mounting device and mounted on the upper side of the light-shielding film, and then the light-shielding film with the light-guiding film is continuously moved to the right through the adsorption conveyor line, and then the reflective film is output through the third film layer output device, and then the reflective film is grabbed by the third film layer mounting device and mounted and pressed on the upper side of the light-guiding film to complete the composite molding of the keyboard film, and finally the keyboard film is continuously moved to the right through the adsorption conveyor line, thereby completing the production process of the entire keyboard film, thereby not only achieving the production goal of high integration and automation, but also greatly improving the production efficiency of the keyboard film, thereby not only significantly reducing the production cost of the production enterprise, but also promoting the further upgrading and transformation of the keyboard film production technology to meet actual needs.

[0048] 2. When the keyboard film composite molding equipment of the present application drives the middle connection group to move the first film layer peeling plate forward and backward through the forward and backward telescopic drive group, it can cooperate with the adsorption conveyor line to realize the simple and convenient peeling off of the light-shielding film, and the peeled light-shielding film is adsorbed on the adsorption conveyor line.

Brief Description of the Drawings

[0049] Figure 1 It is a three-dimensional diagram of the keyboard film composite molding equipment of the present application.

[0050] Figure 2This is a three-dimensional diagram of the keyboard film composite molding equipment of the present application with the upper frame hidden.

[0051] Figure 3 yes Figure 2 A magnified view of the Figure I .

[0052] Figure 4 yes Figure 2 A magnified view of the Figure II .

[0053] Figure 5 It is a three-dimensional diagram of the first film layer output device in the keyboard film composite molding equipment of the present application.

[0054] Figure 6 It is a three-dimensional diagram of the first film layer peeling plate in the keyboard film composite molding equipment of the present application.

[0055] Figure 7 It is a three-dimensional diagram of the second film layer mounting device in the keyboard film composite molding equipment of the present application.

[0056] Figure 8 It is a three-dimensional diagram of the third film layer output device in the keyboard film composite molding equipment of this application. [Specific implementation method]

[0057] The present application will be further described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0058] like Figures 1 to 8 As shown, the keyboard film composite molding equipment includes a frame 1, a first film layer output device 2, an adsorption conveyor line 3, a second film layer output device 4, a second film layer mounting device 5, a third film layer output device 6, and a third film layer mounting device 7.

[0059] Specifically, the first film layer output device 2 is arranged on the upper left side of the frame 1, and is used to output the first film layer. The adsorption conveyor line 3 is arranged in the front side of the first film layer output device 2 along the horizontal direction of the frame 1, and is used to adsorb and convey the first film layer output by the first film layer output device 2. The second film layer output device 4 is arranged in the front side of the adsorption conveyor line 3, and is used to output the second film layer. The second film layer mounting device 5 is arranged between the first film layer output device 2 and the second film layer output device 4, and is used to grab the second film layer output by the second film layer output device 4 and mount the second film layer on the upper side of the first film layer. The third film layer output device 6 is arranged on the right rear side of the adsorption conveyor line 3, and is used to output the third film layer. The third film layer mounting device 7 is arranged on the right front side of the adsorption conveyor line 3, and is used to grab the third film layer output by the third film layer output device 6 and mount the third film layer on the upper side of the second film layer. The first film layer outputted by the first film layer output device 2 is a light-shielding film, the film layer outputted by the second film layer output device 4 is a light-guiding film, and the film layer outputted by the third film layer output device 6 is a reflective film layer.

[0060] The keyboard film composite molding equipment of the present application outputs the light-shielding film through the first film layer output device 2, which is then adsorbed and moved to the right for transportation through the adsorption conveyor line 3, and then the light-guiding film is output through the second film layer output device 4, and then the light-guiding film is grabbed by the second film layer mounting device 5 and mounted on the upper side of the light-shielding film, and then the light-shielding film with the light-guiding film is continuously moved to the right through the adsorption conveyor line 3, and then the reflective film is output through the third film layer output device 6, and then the reflective film is grabbed by the third film layer mounting device 7 and mounted and pressed on the upper side of the light-guiding film to complete the composite molding of the keyboard film, and finally the keyboard film is continuously moved to the right through the adsorption conveyor line 3 to output the keyboard film, thereby completing the production process of the entire keyboard film, thereby not only achieving the production goal of highly integrated automation, but also greatly improving the production efficiency of the keyboard film, thereby not only significantly reducing the production cost of the production enterprise, but also promoting the further upgrading and transformation of the keyboard film production technology to meet actual needs.

[0061] Furthermore, the sizes of the light-shielding film, the light-guiding film and the reflective film can be set to match computer keyboards of different sizes, in order to meet usage requirements.

[0062] Furthermore, the first film layer output device 2 includes a first mounting frame 21, a first film layer material strip output mechanism 22, and a first film layer peeling mechanism 23. The first mounting frame 21 is arranged on the left rear side of the adsorption conveyor line 3 along the transverse direction of the positioning conveyor line 2. The first film layer material strip output mechanism 22 is arranged on the first mounting frame 21, and is used to output the first film layer material strip from back to front. The first film layer protective film winding mechanism 24 is arranged on the upper side of the first film layer material strip output mechanism 22, and is used to wind up the first film layer protective film from front to back. The first film layer peeling mechanism 23 is arranged between the first film layer material strip output mechanism 22 and the first film layer protective film winding mechanism 24, and is used to peel off the first film layer (light-shielding film) on the output first film layer material strip. Its advantage lies in that the first film layer material strip output mechanism 22, the first film layer peeling mechanism 23 and the first film layer protective film winding mechanism 24 cooperate to realize automatic conveying and peeling of the film layer, and at the same time, the production purpose of synchronously and automatically winding up the protective film strip on the film layer is also achieved, thereby greatly improving production efficiency and reducing production costs.

[0063] Furthermore, the first film stripping mechanism 23 includes a first film stripping plate 231 and a first film protective film adjustment and stop group 232. The first film stripping plate 231 is positioned on the first mounting frame 21, transversely of the suction conveyor line 3, and located above the suction conveyor line 2. A smooth transition surface 2311 is provided between its upper and lower sides for smoothly transitioning the first film strip. The first film protective film adjustment and stop groups 232 are located on the left and right sides of the upper portion of the first film stripping plate 231 and are used to adjust and stop the first film protective film. This smooth transition surface 2311 facilitates easier and more convenient stripping of the light-shielding film from the first film strip.

[0064] Furthermore, the first film peeling mechanism 23 also includes a forward and backward telescopic drive group 233 and an intermediate connection group 234. The forward and backward telescopic drive group 233 is located on the right side of the first mounting frame 21. The intermediate connection group 234 is connected between the first film peeling plate 231 and the forward and backward telescopic drive group 233, and is driven by the forward and backward telescopic drive group 233 to cause the first film peeling plate 231 to telescope forward and backward. This advantageously allows the front and rear telescopic drive group 233 to drive the intermediate connection group 234 to cause the first film peeling plate 231 to telescope forward and backward, thereby cooperating with the suction conveyor line 3 to easily and conveniently peel off the light-shielding film, and the peeled light-shielding film is then adsorbed onto the suction conveyor line 3.

[0065] Furthermore, the first film strip delivery mechanism 22 includes a first film strip roll placement rack 221, a first film strip pressure roller assembly 222, and a first film strip tensioning roller assembly 223. The first film strip roll placement rack 221 is located on the left rear side of the first mounting frame 21 and is used to place the first film strip roll. The first film strip pressure roller assembly 222 is located between the first film strip roll placement rack 221 and the first film strip stripping plate 231 and is used to pressure and roll the first film strip. The first film strip tensioning roller assembly 223 is located between the first film strip pressure assembly 222 and the first film stripping plate 231 and is used to tension the first film strip. This mechanism has the advantage of enabling automatic conveying of the first film strip.

[0066] The first protective film winding mechanism 24 includes a first protective film winding frame 241, a first protective film pressing roller assembly 242, and a first protective film tensioning roller assembly 243. The first protective film winding frame 241 is located above the first protective film roll placement frame 221 and is used to wind up the first protective film. The first protective film pressing roller assembly 242 is located in front of the first protective film winding frame 241 and is used to pressurize and roll the first protective film. The first protective film tensioning roller assembly 243 is located in front and behind the first protective film pressing roller assembly 242 and is used to tension the first protective film. This mechanism has the advantage of automatically winding up the first protective film.

[0067] Furthermore, the first film strip delivery mechanism 22 further includes a displacement sensor provided on the first film strip pinch roller assembly 222 for monitoring the delivery distance of the first film strip, which has the advantage of being able to control the delivery distance of the first film strip in real time.

[0068] Furthermore, the first film strip delivery mechanism 22 further includes a disconnection sensor 224 disposed on the first mounting frame 21 and located in front of the first film protective film pressing roller assembly 242 for detecting whether the first film protective film is disconnected. The disconnection sensor 224 is preferably an existing wire break sensor. Its purpose is to provide timely feedback to the control module provided in the present application when a film strip break is detected, thereby providing an alarm reminder through methods such as an audible alarm and a light alarm.

[0069] Furthermore, the structures and working principles of the second film layer output device 4 and the third film layer output device 6 are similar to those of the first film layer output device 2 , and therefore will not be further described herein.

[0070] Furthermore, the suction conveyor line 3 is provided with multiple negative pressure suction holes 31, as well as an external negative pressure connection group connected to these negative pressure suction holes 31 and capable of connecting to an external negative pressure device, so that the negative pressure suction holes 31 can negatively pressure-suction the first film layer. This is to achieve the purpose of positioning and suctioning the bottom layer of light-shielding film, not only preventing displacement, but also allowing for the purpose of loosening or tightening at any time, thus greatly facilitating actual operation.

[0071] Furthermore, the second film layer mounting device 5 includes a support frame 51, a longitudinal moving mechanism 52, a transverse moving mechanism 53, a vertical lifting mechanism 54, and a negative pressure adsorption mechanism 55. The support frame 51 is arranged on the left side of the second film layer output device 4 along the longitudinal direction of the adsorption conveyor line 3. The longitudinal moving mechanism 52 is arranged on the upper side of the support frame 51 along the longitudinal direction of the support frame 51. The transverse moving mechanism 53 is arranged on the upper side of the longitudinal moving mechanism 52 along the transverse direction of the support frame 51, and is driven by the longitudinal moving mechanism 52 to move back and forth. The vertical lifting mechanism 54 is arranged in front of the transverse moving mechanism 53 along the vertical direction of the support frame 51, and is driven by the transverse moving mechanism 53 to move back and forth. The negative pressure adsorption mechanism 55 is arranged on the lower side of the vertical lifting mechanism 54, and is used for negative pressure adsorption of the second film layer output by the second film layer output device 4 and mounting the second film layer on the upper side of the first film layer.

[0072] The negative pressure adsorption mechanism 55 includes a connecting plate 551, a negative pressure suction plate 552, and a negative pressure suction group 553. The connecting plate 551 is connected to the lower side of the vertical lifting mechanism 54 along the transverse direction of the adsorption conveyor line 3. The negative pressure suction plate 552 is arranged on the lower side of the connecting plate 551, and a cavity is provided inside it, and a negative pressure adsorption hole connected to the cavity is provided on its lower side. The negative pressure suction group 553 is arranged on the upper side of the connecting plate 551, and its lower end is connected to the cavity, and is used to suck the gas in the cavity so that the negative pressure adsorption hole adsorbs the second film layer. Its advantage is that it can realize the automatic absorption and release of the light-guiding film, and can automatically attach and press the light-guiding film to the upper side of the light-shielding film.

[0073] Furthermore, the structure and working principle of the third film layer mounting device 7 are similar to those of the second film layer mounting device 5 , so they will not be further described here.

[0074] In summary, the embodiments of the present application have been described in detail, but the present application is not limited to the above embodiments. Even if various changes are made to the present application, they still fall within the scope of protection of the present application.

Claims

1. A keyboard film composite molding device, comprising a frame (1), characterized in that: The keyboard film composite molding equipment also includes: A first film layer output device (2), which is arranged on the upper left side of the frame (1) and is used to output the first film layer; an adsorption conveying line (3), which is arranged in the transverse direction of the frame (1) in front of the first film layer output device (2), and is used for adsorbing and conveying the first film layer output by the first film layer output device (2); A second film layer output device (4), which is arranged on the front side of the adsorption conveying line (3) and is used to output the second film layer; a second film layer mounting device (5), which is provided between the first film layer output device (2) and the second film layer output device (4), and is used to grab the second film layer output by the second film layer output device (4) and mount the second film layer on the upper side of the first film layer; A third film layer output device (6), which is arranged on the right rear side of the adsorption conveying line (3) and is used to output the third film layer; A third film layer mounting device (7), which is provided on the right front side of the adsorption conveying line (3), and is used to grab the third film layer output by the third film layer output device (6) and mount the third film layer on the upper side of the second film layer; The second film layer output device (4) and the third film layer output device (6) are respectively arranged on both sides of the adsorption conveying line (3); The adsorption conveying line (3) is provided with a plurality of negative pressure suction holes (31), and an external negative pressure connection group is provided which is connected to the negative pressure suction holes (31) and can be externally connected to a negative pressure device so that the negative pressure suction holes (31) can negatively pressure adsorb the first film layer; The second film layer mounting device (5) comprises: A support frame (51) is arranged on the left side of the second film layer output device (4) along the longitudinal direction of the adsorption conveying line (3); A longitudinal movement mechanism (52) is provided on the upper side of the support frame (51) along the longitudinal direction of the support frame (51); a transverse movement mechanism (53), which is arranged on the upper side of the longitudinal movement mechanism (52) along the transverse direction of the support frame (51) and is driven by the longitudinal movement mechanism (52) to move back and forth; A vertical lifting mechanism (54) is arranged in the vertical direction of the support frame (51) in front of the horizontal moving mechanism (53) and is driven by the horizontal moving mechanism (53) to move back and forth left and right; A negative pressure adsorption mechanism (55) is provided on the lower side of the vertical lifting mechanism (54) and is used for negatively adsorbing the second film layer output by the second film layer output device (4) and attaching the second film layer to the upper side of the first film layer.

2. The keyboard film composite molding equipment according to claim 1, characterized in that: The first film layer output device (2) comprises: A first mounting frame (21) is arranged on the left rear side of the adsorption conveying line (3) along the transverse direction of the adsorption conveying line (3); A first film layer material strip output mechanism (22), which is provided on the first mounting frame (21) and is used to output the first film layer material strip from back to front; A first film layer protective film rewinding mechanism (24), which is arranged on the upper side of the first film layer material strip output mechanism (22) and is used for rewinding the first film layer protective film from front to back; The first film layer peeling mechanism (23) is provided between the first film layer material strip output mechanism (22) and the first film layer protective film rewinding mechanism (24), and is used for peeling off the first film layer on the output first film layer material strip.

3. The keyboard film composite molding device according to claim 2, characterized in that: The first film layer peeling mechanism (23) comprises: A first film layer stripping plate (231) is arranged on the first mounting frame (21) along the transverse direction of the adsorption conveying line (3) and is located on the upper side of the adsorption conveying line (3), and a smooth transition curved surface (2311) for smoothly transitioning the first film layer strip is provided between the upper side and the lower side; The first film layer protective film regulating and limiting group (232) is provided on the left and right sides of the upper portion of the first film layer stripping plate (231) and is used for regulating and limiting the first film layer protective film.

4. The keyboard film composite molding device according to claim 3, characterized in that: The first film layer peeling mechanism (23) further includes: A front and rear telescopic drive group (233), which is arranged on the right side of the first mounting frame (21); The intermediate connection group (234) is connected between the first film layer stripping plate (231) and the front-to-back telescopic driving group (233), and is driven by the front-to-back telescopic driving group (233) to drive the first film layer stripping plate (231) to move in a telescopic manner.

5. The keyboard film composite molding device according to claim 3, characterized in that: The first film layer material strip output mechanism (22) comprises: A first film layer material strip roll placement rack (221), which is arranged on the left rear side of the first mounting frame (21) and is used to place the first film layer material strip roll; A first film layer material strip pressing roller feeding group (222), which is arranged between the first film layer material strip roll placement rack (221) and the first film layer stripping plate (231), and is used for pressing the first film layer material strip by roller feeding; a first film layer material belt tensioning roller group (223), which is arranged between the first film layer material belt pressing roller group (222) and the first film layer stripping plate (231) and is used for tensioning the first film layer material belt; The first film layer protective film rewinding mechanism (24) comprises: A first film layer protective film rewinding rack (241), which is arranged on the upper side of the first film layer material strip roll placement rack (221) and is used for rewinding the first film layer protective film; A first film layer protective film pressing roller delivery group (242), which is arranged on the front side of the first film layer protective film winding frame (241) and is used for pressing the first film layer protective film; The first film layer protective film tensioning roller group (243) is arranged at the front and rear sides of the first film layer protective film pressing roller group (242) and is used for tensioning the first film layer protective film.

6. The keyboard film composite molding device according to claim 5, characterized in that: The first film layer material strip output mechanism (22) further comprises a displacement sensor provided on the first film layer material strip pressing roller group (222) for monitoring the output distance of the first film layer material strip.

7. The keyboard film composite molding device according to claim 5, characterized in that: The first film layer material strip output mechanism (22) further includes a disconnection sensor (224) provided on the first mounting frame (21) and located in front of the first film layer protective film pressing roller assembly (242) for detecting whether the first film layer protective film is disconnected.

8. The keyboard film composite molding device according to claim 1, characterized in that: The negative pressure adsorption mechanism (55) comprises: A connecting plate (551) connected to the lower side of the vertical lifting mechanism (54) along the transverse direction of the adsorption conveying line (3); A negative pressure suction plate (552) is provided on the lower side of the connecting plate (551), and has a cavity formed therein, and a negative pressure adsorption hole in communication with the cavity formed on the lower side; A negative pressure suction group (553) is provided on the upper side of the connecting plate (551), and its lower end is connected to the cavity, and is used to suck the gas in the cavity so that the negative pressure adsorption holes adsorb the second film layer.

Images