Protective film collecting device

Abstract

The protective film collecting device is used for collecting a protective film stripped from an adhesive tape, the adhesive tape with the protective film is provided in the form of a round winding package, the winding package is provided with a center hole, and the protective film collecting device is characterized by comprising a first rotating shaft, a second rotating shaft and a third rotating shaft, the winding package can be mounted on the first rotating shaft through the center hole, so that the winding package can rotate together with the first rotating shaft; a second rotating shaft on which the protective film peeled from the adhesive tape can be wound; and the transmission mechanism is positioned between the first rotating shaft and the second rotating shaft, is respectively connected with the first rotating shaft and the second rotating shaft, and can transfer the rotation of the first rotating shaft to the second rotating shaft.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile assembly, in particular to a protective film collecting device for collecting protective films peeled from adhesive strips. BACKGROUND

[0002] In the process of automobile assembly, an expanded noise-reducing sponge strip is installed on the front windshield glass. The sponge strip is provided in the form of an adhesive strip, one side of which is provided with adhesive, and the adhesive side is protected by a thin plastic protective film. The sponge adhesive strip with the protective film is provided in the form of a continuous roll. The length of each roll of sponge strip is, for example, 10 meters, and only 1.4 meters is required for installation on each front windshield. When installing the sponge adhesive strip, the installer first needs to peel the protective film from the sponge adhesive strip to expose the adhesive side, then adhere the required length of the sponge adhesive strip to the automobile windshield glass, and then break the protective film and throw the broken protective film into a garbage can.

[0003] In actual work, the material of the plastic protective film is usually PVC, which is prone to static electricity when peeled from the sponge adhesive strip, making it difficult for the worker to throw the plastic protective film with static electricity into the garbage can. The worker often needs to pull the protective film with great effort, causing trouble in work and reducing the installation efficiency of the sponge adhesive strip. SUMMARY

[0004] The present application aims to solve the above technical problems and provide a protective film collecting device that can automatically peel the protective film from the adhesive strip, such as a sponge adhesive strip, when the worker is attaching the adhesive strip, and wind the protective film on a collecting wheel, thus advantageously achieving recycling of the protective film.

[0005] A protective film collecting device is provided for collecting protective films peeled from adhesive strips, wherein the adhesive strips with the protective films are provided in the form of a circular roll package, the roll package has a central hole, and the protective film collecting device comprises: a first rotating shaft, the roll package can be installed on the first rotating shaft through the central hole, so as to rotate together with the first rotating shaft; a second rotating shaft, the protective film peeled from the adhesive strip can be wound on the peripheral surface of the second rotating shaft; and a transmission mechanism located between the first rotating shaft and the second rotating shaft, the transmission mechanism is connected with the first rotating shaft and the second rotating shaft respectively, and can transmit the rotation of the first rotating shaft to the second rotating shaft.

[0006] Preferably, the transmission mechanism comprises: a first pulley coaxially installed with the first rotating shaft and capable of synchronously rotating with the first rotating shaft; a second pulley coaxially installed with the second rotating shaft and capable of synchronously rotating with the second rotating shaft; and a belt surrounding the first pulley and the second pulley, so as to transmit the rotation of the first pulley to the second pulley.

[0007] Preferably, the protective film collecting device is used for a predetermined specification of the winding package, the winding package comprises a total length L of the adhesive tape, a total number of turns N, the outer peripheral surface of the second rotating shaft has a second rotating shaft diameter D2, the transmission mechanism has a transmission ratio i, the second rotating shaft diameter D2 and the transmission ratio i satisfy the following relationship:

[0008] i*L / (π*D2)=N,

[0009] Wherein in the construction of the protective film collecting device, the actual value of the second rotating shaft diameter D2 or the transmission ratio i can be selected within a certain variation range according to the calculation result of the above formula, so as to allow the winding package to slip on the first rotating shaft, or to allow the peeling point of the protective film and the adhesive tape to move away from the protective film collecting device.

[0010] Preferably, the first rotating shaft has a tensioning mechanism for applying a certain tension to the inner wall of the central hole of the winding package, so as to tension the winding package mounted thereon, so that the winding package can drive the first rotating shaft to rotate together through the static friction force between the winding package and the tensioning mechanism when the winding package rotates.

[0011] Preferably, the tensioning mechanism comprises a plurality of elastic tensioning strips arranged around the first rotating shaft, and the tensioning strips can elastically stretch in the radial direction of the first rotating shaft.

[0012] Preferably, when the pulling force applied by the second rotating shaft to the winding package mounted on the first rotating shaft can overcome the static friction force between the tensioning mechanism and the inner wall of the central hole, the winding package can slip on the first rotating shaft.

[0013] Preferably, the outer peripheral surface of the second rotating shaft comprises at least one recess, and the recess is beneficial to remove the protective film wound on the outer peripheral surface of the second rotating shaft.

[0014] Preferably, the protective film collecting device further comprises a first wheel fixed on the first rotating shaft, and when the winding package is mounted on the first rotating shaft, the axial end surface of the winding package can abut against the first wheel.

[0015] Preferably, the protective film collecting device further comprises a second wheel fixed on the inner end of the second rotating shaft, for limiting the inner end axial position of the protective film wound on the second rotating shaft.

[0016] Preferably, the protective film collecting device further comprises a baffle fixed on the outer end of the second rotating shaft, the baffle being used to limit the axial position of the outer end of the protective film wound on the second rotating shaft and to fix the end of the protective film.

[0017] Preferably, the baffle is a notched disc, wherein the notch is used to fix the end of the protective film.

[0018] Preferably, the protective film collecting device further comprises a mounting bracket for fixing the protective film collecting device in place, the mounting bracket being fixedly connected with at least one of the first rotating shaft and the second rotating shaft.

[0019] Preferably, the mounting bracket comprises two first beams fixedly connected with the first rotating shaft and the second rotating shaft respectively and a second beam connected with the two first beams.

[0020] Preferably, the first beam comprises a shaft hole for receiving the first rotating shaft or the second rotating shaft, a beam hole for receiving the second beam, a first slit capable of being clamped by a screw, the first slit being communicated with the shaft hole and being used to clamp the first rotating shaft or the second rotating shaft by a screw, and a second slit capable of being clamped by a screw, the second slit being communicated with the beam hole and being used to clamp the second beam by a screw.

[0021] By using the protective film collecting device of the present application, the worker only needs to continuously paste the peeled adhesive tape, and no longer needs to cut, handle and adjust the protective film, thereby providing work efficiency. Moreover, the protective film collecting device of the present application has simple structure, no power requirement, low cost and maintenance-free. BRIEF DESCRIPTION OF DRAWINGS

[0022] The various aspects of the present application will be better understood in connection with the following detailed description of specific embodiments when read in conjunction with the accompanying drawings, in which:

[0023] Figure 1 is a schematic view of the winding package of the adhesive tape with protective film;

[0024] Figure 2 is a perspective view of the protective film collecting device of the present application from the front;

[0025] Figure 3 is a perspective view of the protective film collecting device of the present application from the back;

[0026] Figure 4 is Figure 2 and 3 the front view of the protective film collecting device of

[0027] Figure 5 is Figure 2 and 3a rear view of the protective film collecting device of the present application;

[0028] Figure 6 a rear view of the protective film collecting device of the present application; Figure 2 a rear view of the protective film collecting device of the present application; 3 a rear view of the protective film collecting device of the present application; and

[0029] Figure 7 a rear view of the protective film collecting device of the present application; Figure 2 a rear view of the protective film collecting device of the present application; 3 a rear view of the protective film collecting device of the present application. DETAILED DESCRIPTION

[0030] The present application will be described below with reference to the accompanying drawings, which show several embodiments of the present application. It should be understood, however, that the present application can be presented in various different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure of the present application more complete and to fully inform those skilled in the art of the scope of protection of the present application. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments.

[0031] Figure 1 A schematic view of a roll packaging P of adhesive tape T is shown, wherein the adhesive tape T is wound on a core C having a central hole H and has a thin protective film M for protecting the adhesive surface of the adhesive tape T. The protective film M needs to be removed before use of the adhesive tape T, and the device according to the present application can collect the protective film M in a simple manner. Using the protective film collecting device 1 of the present application, the worker can not need to break the protective film M after each use of a length of adhesive tape T, nor need to laboriously dispose of the broken protective film M, because as mentioned above, the protective film material is usually PVC, which is extremely easy to generate static electricity when peeled off from the adhesive tape T, causing the worker to be unable to quickly dispose of the protective film M with static electricity, and thus the protective film collecting device 1 of the present application can improve the working efficiency of the worker in attaching the adhesive tape T.

[0032] Figures 2-7 A protective film collecting device 1 according to the present application is shown in FIG. 1 for collecting the protective film M peeled off from the adhesive tape T.

[0033] In general, the protective film collecting device 1 includes a first rotating shaft 2 on which the roll packaging P can be mounted through the central hole H so as to be able to rotate together with the first rotating shaft 2, a second rotating shaft 3 on the peripheral surface of which the protective film M peeled off from the adhesive tape T can be wound, and a transmission mechanism 4 located between the first rotating shaft 2 and the second rotating shaft 3, which is connected with the first rotating shaft 2 and the second rotating shaft 3 respectively and can transmit the rotation of the first rotating shaft 2 (driving shaft) to the second rotating shaft 3 (driven shaft).

[0034] Figures 2-7A belt drive system is shown as one embodiment of the transmission mechanism 4. Referring to Figures 2-7 , the transmission mechanism 4 includes a first pulley 41 coaxially mounted with the first rotating shaft 2 and capable of synchronous rotation with the first rotating shaft 2, a second pulley 42 coaxially mounted with the second rotating shaft 3 and capable of synchronous rotation with the second rotating shaft 3, and a belt 43 surrounding the first and second pulleys 41 and 42 and capable of transmitting the rotation of the first pulley 41 to the second pulley 42.

[0035] Other transmission mechanisms known to those skilled in the art can also be used, such as a gear pair (not shown), which can include a first gear coaxially mounted with the first rotating shaft 2 and capable of synchronous rotation with the first rotating shaft 2, a second gear coaxially mounted with the second rotating shaft 3 and capable of synchronous rotation with the second rotating shaft 3, and an intermediate gear engaged with the first and second gears and capable of transmitting the power of the first gear to the second gear.

[0036] The transmission mechanism 4 has a transmission ratio i, which is related to the diameter of the peripheral surface of the second rotating shaft 3, i.e., the second rotating shaft diameter D2 (see Figure 6 、 Figure 7 The protective film collecting device 1 of the present application is designed for a predetermined size of the winding package (P), and the total length L and the total number of turns N of the adhesive tape T in the winding package (P) are known numbers, so the total length of the protective film M is L, and it is assumed that the length of the protective film M wound on the second rotating shaft 3 is L when the winding package (P) mounted on the first rotating shaft 2 is used up, then the number of turns of the second rotating shaft 3 is L / (π*D2), and the total number of turns of the winding package (P) mounted on the first rotating shaft 1 is N in the same period of time, so the ratio of N to the total number of turns of the second rotating shaft 3 is i, and therefore the transmission ratio i and the second rotating shaft diameter D2 satisfy the following relationship:

[0037] i*L / (π*D2) = N.

[0038] Therefore, when designing and manufacturing the collecting device of the present application, first, the second rotating shaft diameter D2 is set according to experience or actual conditions, and then the transmission ratio i is calculated according to the above formula, for example, the second rotating shaft diameter D2 is set to be approximately equal to the diameter of the winding package (P). Alternatively, the transmission ratio i can be determined first, and then the second rotating shaft diameter D2 is calculated according to the above formula, for example, it is desired that the second rotating shaft 3 rotates faster than the first rotating shaft 2, and the transmission ratio i is set to be 0.75.

[0039] It should be noted that in designing the protective film collecting device 1 according to the present application, the second shaft diameter D2 or the transmission ratio i determined according to the above formula can be selected within a certain range of variation, so as to allow the winding package P to slip on the first shaft 2, thereby preventing the phenomenon of jamming and the like. Moreover, in actual operation, the peeling point of the protective film M and the adhesive tape T can be moved away from the protective film collecting device 1 by a certain distance, so as to keep the protective film M taut between the first shaft 2 and the second shaft 3. Therefore, in the case of slippage or movement of the peeling point, the total number of revolutions N of the winding package P is completely equal to the total number of revolutions of the second shaft 3, and therefore the second shaft diameter D2 and the transmission ratio i do not completely satisfy the above formula, but can vary within a certain range of values calculated by the above formula.

[0040] The first shaft 2 is determined according to the diameter of the central hole H of the winding package P. Preferably, the first shaft 2 has a tensioning mechanism for tensioning the winding package P mounted thereon. The tensioning mechanism can provide a certain tension on the inner wall of the core C of the winding package P mounted on the first shaft 2, so that when the winding package P rotates, the winding package can drive the first shaft 2 to rotate together through the static friction force between the winding package and the tensioning mechanism. Referring to Figure 1 , the tensioning mechanism comprises a plurality of elastic tensioning strips 21 arranged around the first shaft 2, which can elastically stretch in the radial direction of the first shaft 2.

[0041] Preferably, when the pulling force applied by the second shaft 3 to the winding package P mounted on the first shaft 2 can overcome the static friction force of the tensioning mechanism between the inner wall of the core C, the winding package P can slip on the first shaft 2, at which time the winding package P cannot drive the first shaft 2 to rotate synchronously, thereby preventing the protective film collecting device 1 from jamming.

[0042] Preferably, referring to Figure 2 、 Figure 3 、 Figure 6 , the peripheral surface of the second shaft 3 can comprise at least one recess 31, which provides a gap after the protective film M is wound on the peripheral surface of the second shaft 3, which is conducive to removing the protective film M wound on the second shaft 3 at the end of use of the protective film collecting device 1.

[0043] Preferably, referring to Figures 2-6The protective film collecting device 1 further comprises a first wheel 22 fixed to the first rotating shaft 2, and when the winding package P is installed on the first rotating shaft 2, the axial end face of the winding package P can abut against the first wheel 22, thereby facilitating the positioning of the winding package P on the first rotating shaft 2.

[0044] Preferably, referring to Figures 2-6 The protective film collecting device 1 further comprises a second wheel 32 fixed to the inner end of the second rotating shaft 3, for limiting the inner end axial position of the protective film M wound on the second rotating shaft 3.

[0045] Preferably, referring to Figures 2-6 The protective film collecting device 1 further comprises a baffle 33 fixed to the outer end of the second rotating shaft 3, for limiting the outer end axial position of the protective film M wound on the second rotating shaft 3, and for fixing the end of the protective film thereon. For example, the baffle 33 is a disc with a notch 331, and the end of the protective film M can be fixed in the notch 331.

[0046] Preferably, the protective film collecting device 1 can further comprise a mounting bracket 5 fixedly connected with at least one of the first rotating shaft 2 and the second rotating shaft 3, for fixedly mounting the protective film collecting device 1 in place. Referring to Figures 2-6 The mounting bracket 5 can comprise two first beams 51 fixedly connected with the first rotating shaft 2 and the second rotating shaft 3 respectively, and a second beam 52 connected to the two first beams 51.

[0047] Preferably, the first beam 51 comprises: a shaft hole 511 (see Figure 3 ) for receiving the first rotating shaft 2 or the second rotating shaft 3; a beam hole 512 (see Figure 3 , Figure 7 ) for receiving the second beam 52; a first slit 513 (see Figure 3 ) capable of being clamped by a screw S, which is in communication with the shaft hole 511, for clamping the first rotating shaft 2 or the second rotating shaft 3 by the screw S; and a second slit 514 (see Figure 7 ) capable of being clamped by a screw S, which is in communication with the beam hole 512, for clamping the second beam 52 by the screw S.

[0048] The following describes the working process of the protective film collecting device 1 according to the present application.

[0049] First, the protective film collecting device 1 is installed near the rubber strip applying station by installing the support 5, and then a new rubber strip package P is installed on the first rotating shaft 2, and the core C of the rubber strip package P is tensioned on the first rotating shaft 2 by the elastic tensioning strip 21. Then, the worker peels the protective film M of the free end of the rubber strip T from the rubber strip T, and winds the free end of the protective film M on the notch 331 of the baffle 33 of the second rotating shaft 3, so that the free end of the protective film M is fixed on the second rotating shaft 3. Then, the worker pulls the free end of the rubber strip T to the rubber strip applying station, and applies the rubber strip T separated from the protective film M to the windshield while pulling the rubber strip T. When the worker pulls the rubber strip T, the rubber strip package P rotates, driving the first rotating shaft 2 to rotate, and the rotation of the first rotating shaft 2 is transmitted to the second rotating shaft 3 through the belt 43, so that the protective film M peeled from the rubber strip T will be wound on the peripheral surface of the second rotating shaft 3. When a predetermined length of the rubber strip T is applied to the windshield, the worker can cut off the rubber strip T, because the rubber strip T has been separated from the protective film M, so it is not necessary to cut off the protective film M, simplifying the operation of the worker. When the rubber strip T of the rubber strip package P is used up, the worker removes the protective film M wound on the second rotating shaft 3 through the recess 31 on the peripheral surface of the second rotating shaft 3, and the static electricity generated during the peeling process will not cause the wound protective film M to be adsorbed on unwanted parts or objects, so the worker can easily handle the wound protective film M without the trouble caused by static adsorption in the prior art.

[0050] It should be noted that as the rubber strip T is continuously used, the diameter of the rubber strip package P gradually decreases, while the transmission ratio i of the transmission device 4 and the diameter D2 of the second rotating shaft do not change, so that speed mismatch between the first rotating shaft 2 and the second rotating shaft 3 can occur. For example, the second rotating shaft 3 rotates too fast, which can cause the first rotating shaft 2 and the second rotating shaft 3 to be stuck. As described above, when the pulling force applied by the second rotating shaft 3 to the wound package P installed on the first rotating shaft 2 can overcome the frictional force applied by the tensioning mechanism to the inner wall of the core C, the wound package P can slip on the first rotating shaft 2, at which time the wound package P cannot drive the first rotating shaft 2 to rotate, thereby preventing the sticking. Or if the first rotating shaft 2 rotates too fast, the peeling point of the protective film M from the rubber strip T will move away from the protective film collecting device 1 to the station, thereby keeping the protective film M tensioned between the first rotating shaft 2 and the second rotating shaft 3.

[0051] As can be seen from the above description, by using the protective film collecting device 1 of the present application, the worker only needs to continuously paste the peeled rubber strip, without the need to cut off, handle and adjust the protective film, thereby improving work efficiency. Moreover, the protective film collecting device 1 of the present application is simple in structure, does not require power, is low in cost and maintenance-free.

[0052] While exemplary embodiments of the present application have been described, it is to be understood that the application need not be limited to the matters specifically set forth herein, but only by the scope of the appended claims. Therefore, many modifications and variations of the exemplary embodiments are possible in light of the above teachings. The exemplary embodiments are to be understood to contribute to the technical field of the application, and to be within the scope of the application as defined by the appended claims.

Claims

1. A protective film collecting device for collecting a protective film (M) peeled from a tape (T) in which the tape with the protective film is provided in the form of a circularly wound package (P) having a central hole (H), characterized in that, The protective film collecting device (1) comprises: a first rotating shaft (2) on which the winding package can be mounted through the central hole so as to rotate together with the first rotating shaft; a second rotating shaft (3) on the peripheral surface of which the protective film peeled off from the adhesive tape can be wound; and a transmission mechanism (4) located between the first rotating shaft and the second rotating shaft, which is connected with the first rotating shaft and the second rotating shaft respectively and can transmit the rotation of the first rotating shaft to the second rotating shaft.

2. The protective film collection apparatus according to claim 1, characterized by The transmission mechanism (4) comprises: a first pulley (41) coaxially mounted with the first rotating shaft (2) and capable of synchronously rotating with the first rotating shaft; a second pulley (42) coaxially mounted with the second rotating shaft (3) and capable of synchronously rotating with the second rotating shaft; and a belt (43) surrounding the first pulley and the second pulley so as to transmit the rotation of the first pulley to the second pulley.

3. The protective film collection device according to claim 1 or 2, characterized by The protective film collecting device is used for a winding package (P) of a predetermined specification, the winding package (P) comprises an adhesive tape (T) with a total length of L and a total number of turns of N, the second rotating shaft (3) has a second rotating shaft diameter D2, the transmission mechanism has a transmission ratio i, and the second rotating shaft diameter D2 and the transmission ratio i satisfy the following relationship: i*L / (π*D2)=N, wherein when the protective film collecting device is constructed, the actual value of the second rotating shaft diameter D2 or the transmission ratio i can be selected within a certain variation range according to the calculation result of the above formula.

4. The protective film collection device according to claim 1 or 2, characterized by The first rotating shaft has a tensioning mechanism for applying a certain tension to the inner wall of the central hole (H) of the winding package (P) so as to tension the winding package mounted thereon, so that the winding package can drive the first rotating shaft (2) to rotate together through the static friction force between the winding package and the tensioning mechanism when the winding package rotates.

5. The protective film collection apparatus according to claim 4, characterized by The tensioning mechanism comprises a plurality of elastic tensioning strips (21) arranged around the first rotating shaft, which can elastically stretch in the radial direction of the first rotating shaft (2).

6. The protective film collection apparatus according to claim 4, wherein When the pulling force applied by the second rotating shaft (3) to the winding package mounted on the first rotating shaft (2) can overcome the static friction force between the tensioning mechanism and the inner wall of the central hole, the winding package can slip on the first rotating shaft (2).

7. The protective film collection device according to claim 1 or 2, characterized by The peripheral surface of the second rotating shaft (3) comprises at least one recess (31).

8. The protective film collection device according to claim 1 or 2, characterized by The protective film collecting device (1) further comprises: a first wheel (22) fixed on the first rotating shaft (2), the axial end surface of the winding package can abut against the first wheel (22) when the winding package is mounted on the first rotating shaft; and / or a second wheel (32) fixed on the inner end of the second rotating shaft (3) for limiting the inner end axial position of the protective film wound on the second rotating shaft; and / or A baffle (33) fixed on the outer end of the second rotating shaft (3), the baffle being used to limit the axial position of the outer end of the protective film wound on the second rotating shaft and to fix the end of the protective film.

9. The protective film collection apparatus according to claim 8, wherein The baffle (33) is a disc with a notch (331), wherein the notch is used to fix the end of the protective film.

10. The protective film collection device according to claim 1 or 2, characterized by The protective film collecting device (1) further comprises a mounting bracket (5) fixedly connected with at least one of the first rotating shaft and the second rotating shaft.

11. The protective film collection apparatus according to claim 10, wherein The mounting bracket comprises two first beams (51) fixedly connected with the first rotating shaft (2) and the second rotating shaft (3) respectively and a second beam (52) connected on the two first beams.

12. The protective film collection apparatus according to claim 11, wherein The first beam (51) comprises: a shaft hole (511) for receiving the first rotating shaft (2) or the second rotating shaft (3); a beam hole (512) for receiving the second beam (52); a first slit (513) capable of being clamped by a screw, the first slit being communicated with the shaft hole (511) and being used to clamp the first rotating shaft or the second rotating shaft by a screw; and a second slit (514) capable of being clamped by a screw, the second slit being communicated with the beam hole (512) and being used to clamp the second beam (52) by a screw.

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