CN220663160U

CN220663160U - Automatic dyestripping equipment of amortization piece

Info

Publication number: CN220663160U
Application number: CN202321519767.6U
Authority: CN
Inventors: 李理; 宋云飞
Original assignee: Hangzhou Tmd Friction Materials Co ltd
Current assignee: Hangzhou Tmd Friction Materials Co ltd
Priority date: 2023-06-14
Filing date: 2023-06-14
Publication date: 2024-03-26
Anticipated expiration: 2033-06-14

Abstract

The utility model discloses automatic film tearing equipment for a silencing sheet, which comprises a base frame, a feeding mechanism, a film tearing mechanism and a picking mechanism, wherein the feeding mechanism, the film tearing mechanism and the picking mechanism are arranged on the base frame; the winding component is fixed on the side edge of the base frame and can pull the adhesive tape; the pick-up mechanism comprises a sliding rail, a sliding seat provided with a sucker assembly and a driving unit, the sliding seat is matched with the sliding rail in a sliding manner, the driving unit can drive the sliding seat to move, the whole film tearing process of the film tearing equipment is not needed to be manually participated, and the assistance of other additional mechanisms is not needed, so that the equipment structure is simplified, the film tearing efficiency is improved, the labor cost of personnel is reduced, and the problems existing in the prior art are solved.

Description

Automatic dyestripping equipment of amortization piece

Technical Field

The utility model belongs to the technical field of brake block production, and particularly relates to automatic film tearing equipment for a silencing plate.

Background

The automobile silencing sheet is one kind of accessory for reducing or eliminating noise during braking and is one essential component for automobile braking system. At present, with the market rising of electric vehicles, the application of the silencing sheet is further enhanced.

Before production or use, the silencer is wrapped with a layer of protective film, the protective film on the surface of the silencer needs to be torn off before installation, and some large factories begin to use full-automatic film tearing equipment, but for some small factories, the phenomenon of manual film tearing still exists due to the fact that the existing full-automatic film tearing equipment is high in use cost, large in occupied area and the like.

In order to solve the problems, the Chinese patent application No. 202211345150.7 discloses full-automatic film tearing equipment for the surface film of a silencing sheet, which occupies a small space, but has a relatively complex structure and corresponding control logic, and if a certain link is abnormal, a common operator cannot overhaul, so that the normal operation of the film tearing equipment is affected.

Based on the above-mentioned problem, this application has designed an automatic dyestripping equipment that is small, use cost is low, simple and easy structure.

Disclosure of Invention

The utility model aims to provide an automatic film tearing device for a silencing sheet, which has the advantages of simple structure, small occupied space and convenient operation, realizes automatic feeding through a sucker assembly, fixes and bonds a protective film through an adhesive tape, and damages the tension of the protective film through the traction of the adhesive tape to realize automatic film tearing, and the whole film tearing process does not need human participation or the assistance of other additional mechanisms.

The application provides an automatic dyestripping equipment of amortization piece, include:

a base frame, a base seat frame and a base seat,

the feeding mechanism is arranged at the upper end of the base frame and comprises a feeding port;

the film tearing mechanism is arranged on the base frame and comprises a transmission assembly and a winding assembly, the transmission assembly is arranged at the upper end of the base frame and is positioned at one side of the feeding mechanism, the transmission assembly comprises a movable adhesive tape which is paved on the transmission assembly, a protective film on the silencing sheet can be adhered to the adhesive tape, the adhesion force between the protective film and the adhesive tape is larger than the maximum tension of the protective film, meanwhile, a bearing platform is arranged at the same direction end of the transmission assembly in the rotation direction, and a preset gap for the adhesive tape to pass through exists between the bearing platform and the end part of the far end of the transmission assembly; the winding component is arranged below the transmission component and fixed on the side edge of the base frame, and is used for pulling and winding the adhesive tape passing through the preset gap;

the device comprises a base frame, a pick-up mechanism arranged at the upper end of the base frame, a sliding seat provided with a sucker assembly and a driving unit, wherein the sliding seat is transversely arranged at the upper end of the feeding mechanism and/or the driving assembly through a support, the sliding seat is in sliding fit with the sliding seat, and the driving unit is arranged on the support and can drive the sliding seat to reciprocate relative to the sliding seat so as to drive the sucker assembly to move between the feeding mechanism and the driving assembly.

As a preferred scheme of the application, an adjustable limiting block assembly is arranged and comprises a door arch and a limiting block, wherein the door arch is fixedly arranged on the transmission assembly or the bearing platform; when the door arch is fixedly arranged on the transmission assembly, a horizontal connecting rod is arranged between the door arch and the limiting block, one end of the horizontal connecting rod is fixed on the door arch through a bolt, and the other end of the horizontal connecting rod is connected with the limiting block and extends to enable the limiting block to be positioned above the bearing platform; when the door arch is fixedly arranged on the bearing platform, the limiting block is fixed between the inner wall of the door arch and the bearing platform 7 through bolts.

As the preferable scheme of the application, the height between the lower surface of the limiting block and the bearing platform is larger than the thickness of the silencing sheet by 0.5-1.5cm.

As a preferred scheme of the application, the door arch or the end part of the horizontal connecting rod is provided with a u-shaped through hole.

As the preferred scheme of this application, on the base frame with the homonymy of rolling subassembly is equipped with roller and material loading guide roller, the roller is used for installing the reel of sticky tape, the material loading guide roller set up in between drive assembly direction of rotation's the reverse end and the roller, this material loading guide roller can be with epaxial sticky tape guide of roller to drive assembly on.

As a preferred aspect of the present application, the driving assembly comprises a support plate and driven rollers at both ends thereof, the non-adhesive surface of the adhesive tape is in contact with the driven rollers and the support plate and moves relative to the driven rollers under the traction of the winding assembly, and the support plate is used for supporting the adhesive tape.

As the preferred scheme of this application, the winding subassembly contains take-up shaft and unloading guide roll, the take-up shaft passes through driving motor drive, the unloading guide roll sets up between drive assembly direction of rotation's syntropy end and take-up shaft, and this unloading guide roll is used for guiding the sticky tape that has the dyestripping to the take-up shaft.

As the preferred scheme of this application, drive unit contains tow chain and rolling motor, the tow chain with the slide rail sets up side by side, the slide sets firmly in the free end of this tow chain, the rolling motor can drive the tow chain and extend or roll and then drive the slide and the sucking disc subassembly on it and remove between feeding mechanism and drive assembly.

As the preferred scheme of this application, feeding mechanism is the conveyer belt, and the feed opening is located the distal end of this conveyer belt, and the proximal end of this conveyer belt is equipped with the baffle.

As a preferable mode of the present application, the receiving platform includes a plurality of sets of rollers, and the rollers are vertically arranged with respect to the transferring direction of the silencer sheet.

This automatic dyestripping equipment's of this application advantage lies in: the adhesive tape is used for bonding and fixing the protective film of the silencing sheet, when the silencing sheet moves along with the adhesive tape to a preset gap close to the receiving platform, the silencing sheet cannot pass through the preset gap due to size limitation, and as the bonding force between the adhesive tape and the protective film is larger than the maximum tension of the protective film, when the adhesive tape is pulled by the winding component, the adhesive tape and the preset gap are mutually matched to damage the maximum tension of the protective film and tear the protective film, and then the protective film is wound by the winding component along with the adhesive tape, so that the film tearing is completed, and the silencing sheet is reciprocated. It is clear that this dyestripping equipment simple structure, occupation space are little and convenient operation, realized automatic feeding through the sucking disc subassembly, fixed and bonding to the protection film through the sticky tape to make its tension that destroys the protection film realize automatic dyestripping through the tractive to the sticky tape, whole dyestripping process need not artificial participation, also need not the assistance of other extra mechanisms, so, simplified equipment structure, improved dyestripping efficiency, reduced personnel labour cost, solved the problem that prior art exists.

Drawings

Fig. 1 is a schematic diagram of the overall structure of an automatic film tearing device for a silencing sheet according to an embodiment of the present utility model.

Fig. 2 is a partial enlarged view of a portion a in fig. 1, and is also a front view of a door arch frame on an adjustable limiting block fixedly arranged on a transmission assembly according to an embodiment of the present utility model.

Fig. 3 is a schematic front view of the structure of fig. 1 according to an embodiment of the present utility model.

Fig. 4 is a schematic side view of fig. 1 according to an embodiment of the present utility model.

Fig. 5 is a schematic top view of fig. 1 according to an embodiment of the present utility model.

Fig. 6 is another enlarged partial view of the portion a in fig. 1, and is a front view of a door arch frame on an adjustable stopper fixedly arranged on a receiving platform according to an embodiment of the present utility model.

Reference numerals

The feeding device comprises a base frame 1, a feeding mechanism 2, a feeding port 21, a baffle 22, a conveying motor 23, a driven roller 31, a supporting plate 32, a rolling shaft 41, a blanking guide roller 42, a driving motor 43, a bracket 51, a sliding rail 52, a sliding seat 53, a sucker assembly 54, a driving unit 55, a rolling motor 56, a roller shaft 61, a feeding guide roller 62, a receiving platform 7, a roller 71, a door arch 81, a limiting block 82, a u-shaped through hole 83, a horizontal connecting rod 84 and a bolt 85.

Detailed Description

The utility model will now be described in further detail with reference to the following detailed description and with reference to the accompanying drawings, it being emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the utility model and its application.

Example 1: referring to fig. 1, 3, 4 and 5, there is provided an automatic film tearing apparatus for a silencer sheet of the present embodiment, which includes a base frame 1, a feeding mechanism 2, a film tearing mechanism and a picking mechanism provided on the base frame 1.

The base frame 1 is in a frame structure, the feeding mechanism 2 is arranged at the upper end of the base frame 1, the feeding mechanism 2 is preferably a conveyor belt, the conveyor belt is driven by a conveyor motor 23 arranged on the side surface of the base frame 1, in the embodiment, the far end of the conveyor belt is a feed opening 21, the silencing sheets are initially stacked at the position of the feed opening 21, and when required, the conveyor motor 23 is started to drive the conveyor belt to move until the silencing sheets are transferred to a designated position; in this embodiment, in order to avoid the falling of the silencing sheet, the baffle 22 is preferably disposed at the proximal end of the conveyor belt, and meanwhile, the heights of two sides of the conveyor belt are greater than the middle position, so that the silencing sheet can be held in the pocket to avoid the falling of the silencing sheet and damage.

The film tearing mechanism comprises a transmission component and a winding component, wherein the transmission component is arranged at the upper end of a base frame 1 and is positioned at one side of a feeding mechanism 2, the transmission component is preferably arranged in parallel with the feeding mechanism 2, the transmission component comprises an adhesive tape which is paved on the transmission component and can move, a protective film on the silencing piece can be adhered to the adhesive tape, the adhesion force between the two adhesive tapes is larger than the maximum tension of the protective film, meanwhile, a bearing platform 7 is arranged at the same direction end of the transmission component in the rotating direction, a preset gap for the adhesive tape to pass through is reserved between the bearing platform 7 and the end part of the far end of the transmission component, the adhesive tape and the torn protective film can pass through the preset gap, the silencing piece is reserved on the bearing platform 7 for taking materials from the next station, in order to facilitate the rapid pushing of the silencing piece after the tearing film, the bearing platform 7 preferably comprises a plurality of groups of rollers 71, the rollers 71 are vertically arranged relative to the conveying direction of the silencing piece, so that the friction force between the silencing piece and the bearing platform 7 can be reduced, in addition, in order to avoid the adhesion effect of the adhesive surface of the silencing piece and the bearing platform 7, the adhesive surface of the silencing piece is preferably placed on the adhesive tape when the initial surface faces upwards, and the adhesive tape is not contacted with the adhesive tape, and can be manually placed on the film tearing piece when the adhesive tape is in contact with the tearing piece, and the tearing piece is not in contact with the tearing tape, and can be manually and contacted with the film when the tearing piece is formed; the winding component is arranged below the transmission component and fixed on the side edge of the base frame 1, in the embodiment, the winding component comprises a winding shaft 41 and a blanking guide roller 42, the winding shaft 41 is driven by a driving motor 43, the blanking guide roller 42 is arranged between the same direction end of the rotation direction of the transmission component and the winding shaft 41, the blanking guide roller 42 is used for guiding an adhesive tape with a tearing film onto the winding shaft 41, and the winding component is used for pulling and winding the adhesive tape passing through a preset gap and a protective film adhered on the adhesive tape.

The pick-up mechanism comprises a sliding rail 52, a sliding seat 53 provided with a sucker assembly 54 and a driving unit 55, the sliding rail 52 is transversely arranged at the upper ends of the feeding mechanism 2 and the transmission assembly through a support 51, the sliding seat 53 is in sliding fit with the sliding rail 52, namely, the sliding seat 53 can slide relative to the sliding rail 52, the driving unit 55 is arranged on the support 51 and can drive the sliding seat 53 to reciprocate relative to the sliding rail 52 so as to drive the sucker assembly 54 to move between the feeding mechanism 2 and the transmission assembly, so that a silencing sheet positioned at a designated position of the feeding mechanism 2 is adsorbed by the sucker assembly 54 and then transferred to the side of the transmission assembly, namely, automatic feeding is realized.

In this embodiment, the driving unit 55 preferably includes a drag chain and a winding motor 56 for driving the drag chain to wind up, the drag chain and the sliding rail 52 are arranged in parallel, the sliding seat 53 is fixedly arranged at the free end of the drag chain, and the winding motor 56 drives the sliding seat 53 to move horizontally relative to the sliding rail 52 when the drag chain winds up or unwinds, so as to drive the sucking disc assembly 54 to move between the feeding mechanism 2 and the transmission assembly.

The application principle of the embodiment comprises: before use, ensure earlier that the sticky tape loops through material loading guide roll 62, transmission subassembly, be twined on the rolling subassembly after presetting the clearance, restart driving motor 43 and transport motor 23, drive the conveyer belt through transport motor 23 and remove in order to stack the amortization piece of waiting to tear the membrane at the feed inlet 21 position and transfer to the assigned position, this moment, start the air pump as required, make the suction nozzle absorb the amortization piece that is located the uppermost layer (the accessible is adjusted the negative pressure and is realized the absorption to different layers amortization piece, ensure that the suction nozzle is taken is only a slice amortization piece), simultaneously, restart rolling motor 56 makes its drive tow chain stretch and then drive the suction nozzle to remove to transmission subassembly one side and close the air pump after removing in place, the amortization piece loses the adsorption force and falls on the sticky tape, simultaneously, rolling motor 56 drive tow chain rolling resets and then drive sucking disc subassembly 54 resets, accomplish a material loading promptly, will bond with the sticky tape when falling on the sticky tape, because driving motor 43 is started, consequently, will drive the amortization piece to preset clearance end removal when reaching the threshold clearance, the suction belt is realized to the absorption of different layers amortization piece, guarantee that the suction of suction head is carried out, guarantee the suction head is carried out, the protection film is broken, and the protection film is broken in proper order from the best, and the tension is kept up from the protection station is realized to tear the tension automatically, and the protection film is broken, and the protection film is torn down in proper order.

It can be seen that this dyestripping equipment of this embodiment simple structure, occupation space are little and convenient operation, realized automatic feeding through sucking disc subassembly 54, fixed and bonding to the protection film through the sticky tape to make its tension that destroys the protection film realize automatic dyestripping through the tractive to the sticky tape, whole dyestripping process need not artificial participation, also need not the assistance of other extra mechanisms, so, simplified equipment structure, improved dyestripping efficiency, reduced personnel labour cost, solved the problem that prior art exists.

As a preferable scheme of the embodiment, a roll shaft 61 and a feeding guide roll 62 are arranged on the same side of the base frame 1 and the winding assembly, the roll shaft 61 is used for mounting a reel of the adhesive tape, the feeding guide roll 62 is arranged between the opposite end of the rotation direction of the transmission assembly and the roll shaft 61, and the feeding guide roll 62 can guide the adhesive tape on the roll shaft 61 to the transmission assembly; when the adhesive tape feeding device is used, the end part of the adhesive tape on the reel sequentially passes through the feeding guide roller 62, is paved on the transmission assembly, passes through the preset gap and is wound on the winding assembly, the winding assembly provides moving power for the adhesive tape, and the winding assembly can drive the reel to rotate anticlockwise to unwind when pulling the adhesive tape.

As a preferred embodiment of the present embodiment, the transmission assembly includes a support plate 32 and driven rollers 31 at both ends thereof, the non-adhesive surface of the adhesive tape being in contact with the driven rollers 31 and the support plate 32 and being moved relative to the driven rollers 31 by the pulling of the take-up assembly, the support plate 32 being for supporting the adhesive tape, and of course, the transmission assembly may include only the driven rollers 31 at both ends thereof, the non-adhesive surface of the adhesive tape being in contact with the driven rollers 31 and creating tension between the driven rollers 31, if possible or necessary.

Example 2: the difference between the automatic film tearing device for the silencing piece and the embodiment 1 is that in order to prevent the silencing piece from tilting during film tearing, an adjustable limiting block component is preferably additionally arranged, the adjustable limiting block component comprises a door arch 81 and a limiting block 82, the door arch 81 is fixedly arranged on a transmission component, as shown in fig. 2, two sides of the door arch 81 are fixed on the side wall of a supporting plate 32 of the transmission component in a welding, pin joint or threaded connection mode, and the like, a horizontal connecting rod 84 is arranged between the door arch 81 and the limiting block 82, one end of the horizontal connecting rod 84 is fixed on the door arch 81 through a bolt 85, the other end of the horizontal connecting rod 84 is connected with the limiting block 82 and extends to enable the limiting block 82 to be located above the receiving platform 7, in the embodiment, the position of the limiting block 82 relative to the door arch 81 through an adjusting bolt 85 is equal to the distance of the receiving platform 7 in a vertical position, and in order to conveniently adjust the position of the limiting block 82 relative to the receiving platform 7 in a horizontal direction, and u-shaped through holes 83 are preferably arranged at the end of the horizontal connecting rod 84.

In this embodiment, the height of the lower surface of the limiting block 82 from the receiving platform 7 is greater than 0.5-1.5cm than the thickness of the silencing sheet, so that the limiting block 82 can be prevented from affecting normal film tearing operation, and timely limiting can be achieved when the silencing sheet is tilted.

Before use, according to the possible tilting position of the silencing sheet on the carrying platform 7, the position of the limiting block 82 relative to the carrying platform 7 in the horizontal direction is adjusted through the u-shaped through hole 83, and meanwhile, according to the thickness of the silencing sheet, the position of the limiting block 82 relative to the carrying platform 7 in the vertical direction can be adjusted through the bolt 85; when the film tearing device is used, the limiting block 82 can limit one end of the sound absorbing piece, which is tilted, so that the phenomenon that the normal film tearing is influenced by the excessively high tilting is avoided, the film tearing operation is ensured to effectively run, and the film tearing efficiency is improved; in the film tearing process, the adhesive surface of the silencing sheet faces upwards, so that the phenomenon that the silencing sheet is adhered to the limiting block 82 may exist, and at the moment, the process can be manually and timely interfered.

As a preferred scheme of this embodiment, the door arch 81 may be further fixed on the receiving platform 7, referring to fig. 6, in this embodiment, two sides of the door arch 81 are fixed on two side walls of the receiving platform 7 by welding, pin joint, or screw joint, etc., the limiting block 82 is fixed between the inner wall of the door arch 81 and the receiving platform 7 by a bolt 85, and the position of the limiting block 82 relative to the door arch 81 by an adjusting bolt 85 is equal to the distance of the receiving platform 7 in the vertical position, and in order to conveniently adjust the position of the limiting block 82 relative to the receiving platform 7 in the horizontal direction, preferably, a u-shaped through hole 83 is provided on the door arch 81.

The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications can be made by those skilled in the art without departing from the scope of the utility model, which is also to be considered as the scope of the utility model, and which does not affect the effect of the utility model and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims

1. An automatic dyestripping equipment of amortization piece, characterized by comprising:

a base frame (1),

the feeding mechanism (2) is arranged at the upper end of the base frame (1), and the feeding mechanism (2) comprises a feeding port (21);

the film tearing mechanism is arranged on the base frame (1) and comprises a transmission assembly and a winding assembly, the transmission assembly is arranged at the upper end of the base frame (1) and is positioned at one side of the feeding mechanism (2), the transmission assembly comprises an adhesive tape which is laid on the transmission assembly and is movable, a protective film on the silencing piece can be adhered to the adhesive tape, the adhesion force between the protective film and the adhesive tape is larger than the maximum tension of the protective film, meanwhile, a bearing platform (7) is arranged at the same direction end of the rotation direction of the transmission assembly, and a preset gap for the adhesive tape to pass through exists between the bearing platform (7) and the end part of the far end of the transmission assembly; the winding component is arranged below the transmission component and fixed on the side edge of the base frame (1), and is used for pulling and winding the adhesive tape passing through the preset gap;

the device comprises a picking mechanism arranged at the upper end of a base frame (1), wherein the picking mechanism comprises a sliding rail (52), a sliding seat (53) provided with a sucker assembly (54) and a driving unit (55), the sliding rail (52) is transversely arranged at the upper end of a feeding mechanism (2) and/or a transmission assembly through a bracket (51), the sliding seat (53) is in sliding fit with the sliding rail (52), and the driving unit (55) is arranged on the bracket (51) and can drive the sliding seat (53) to reciprocate relative to the sliding rail (52) so as to drive the sucker assembly (54) to move between the feeding mechanism (2) and the transmission assembly.

2. The automatic film tearing equipment for silencing sheets according to claim 1, wherein an adjustable limiting block assembly is provided and comprises a door arch (81) and limiting blocks (82), wherein the door arch (81) is fixedly arranged on the transmission assembly or the receiving platform (7); when the door arch (81) is fixedly arranged on the transmission assembly, a horizontal connecting rod (84) is arranged between the door arch (81) and the limiting block (82), one end of the horizontal connecting rod (84) is fixed on the door arch (81) through a bolt (85), and the other end of the horizontal connecting rod is connected with the limiting block (82) and extends to enable the limiting block (82) to be located above the bearing platform (7); when the door arch (81) is fixedly arranged on the bearing platform (7), the limiting block (82) is fixed between the inner wall of the door arch (81) and the bearing platform (7) through bolts (85).

3. The automatic film tearing apparatus of a silencing sheet as claimed in claim 2, wherein the height of the lower surface of the stopper (82) from the receiving platform (7) is greater than the thickness of the silencing sheet by more than 0.5-1.5cm.

4. The automatic film tearing apparatus of a silencing sheet according to claim 2, wherein u-shaped through holes (83) are provided on the door arch frame (81) or at the end of the horizontal connecting rod (84).

5. The automatic film tearing equipment for silencing sheets according to claim 1, wherein a roll shaft (61) and a feeding guide roller (62) are arranged on the same side of the base frame (1) as the winding assembly, the roll shaft (61) is used for installing a reel of adhesive tape, the feeding guide roller (62) is arranged between the reverse end of the rotation direction of the transmission assembly and the roll shaft (61), and the feeding guide roller (62) can guide the adhesive tape on the roll shaft (61) to the transmission assembly.

6. The automatic film tearing apparatus of a silencer sheet according to claim 1, wherein said transmission assembly comprises a support plate (32) and driven rollers (31) at both ends thereof, a non-adhesive surface of said adhesive tape being in contact with said driven rollers (31) and support plate (32) and being moved relative to said driven rollers (31) under the pulling of the winding assembly, said support plate (32) being for supporting the adhesive tape.

7. The automatic film tearing apparatus of a silencing sheet according to claim 1, wherein the winding assembly comprises a winding shaft (41) and a blanking guide roller (42), the winding shaft (41) is driven by a driving motor (43), the blanking guide roller (42) is arranged between the same directional end of the rotation direction of the transmission assembly and the winding shaft (41), and the blanking guide roller (42) is used for guiding the adhesive tape with the tearing film to the winding shaft (41).

8. The automatic film tearing equipment for silencing sheets according to claim 1, wherein the driving unit (55) comprises a drag chain and a winding motor (56), the drag chain and the sliding rail (52) are arranged in parallel, the sliding seat (53) is fixedly arranged at the free end of the drag chain, and the winding motor (56) can drive the drag chain to stretch or wind so as to drive the sliding seat (53) and a sucking disc assembly (54) on the sliding seat to move between the feeding mechanism (2) and the transmission assembly.

9. The automatic film tearing equipment for silencing sheets according to claim 1, wherein the feeding mechanism (2) is a conveying belt, the feeding opening (21) is positioned at the far end of the conveying belt, and the near end of the conveying belt is provided with a baffle plate (22).

10. The automatic film tearing apparatus of a silencer sheet according to claim 1, wherein the receiving platform (7) comprises a plurality of sets of rollers (71), and the rollers (71) are arranged vertically with respect to the transferring direction of the silencer sheet.