Feeding limiting mechanism and slitting device for application production

Abstract

The invention discloses a feeding limiting mechanism for application production and a slitting device.The feeding limiting mechanism comprises a feeding frame, the feeding frame comprises a frame body and a feeding roller used for winding a viscous layer, and the feeding roller is rotatably installed on the frame body; the frame body comprises a fixing support and a rotatable base, the fixing support and the rotatable base are arranged on the two sides of the machine table respectively, one end of the feeding roller is hinged to the rotatable base, a first fixing groove is formed in the upper end of the fixing support, and a fixing plate is arranged on the first fixing groove through a bolt. One end of the feeding roller is matched with the fixing groove and then is positioned through a fixing plate. Through the rotating function of the rotatable base, the space position and the stress state of the feeding roller in the dismounting process are ingeniously changed, the feeding roller can be disengaged from fixed constraint and droop by means of gravity, and therefore convenient and safe dismounting of a heavy roller body is achieved, and the operation difficulty and the labor intensity are remarkably reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of patch production device, in particular to a feeding limiting mechanism for patch production and a slitting device. BACKGROUND

[0002] In the field of patch production equipment, the feeding process usually needs to install a material roll wound with adhesive material to the machine table for unwinding operation. The traditional feeding mechanism adopts a fixed support. When installing or replacing a heavy feeding roll, the operator needs to align the entire roll to the installation position of the two side supports and keep it horizontal, and then push it into the fixed slot for locking. Since the roll itself is heavy, and the wound material often has a certain width, this centering and pushing operation not only takes time and effort, but also requires higher physical strength for the operator, and there is a risk of roll falling and damage due to misalignment or unstable hand holding. Especially in the production scene of frequent replacement of material rolls, the traditional fixed structure makes the installation and removal process inefficient and easy to cause safety hazards. In addition, the fixedly installed roll is often inconvenient to disassemble during maintenance or cleaning, affecting the overall usability and maintenance convenience of the equipment. Therefore, a feeding limiting mechanism is needed that can simplify the installation and removal process of heavy feeding rolls, reduce the operation difficulty and improve the safety of the operation. SUMMARY

[0003] The problem to be solved by the present application is to provide a feeding limiting mechanism for patch production and a slitting device. The present application ingeniously changes the spatial position and stress state of the feeding roll during disassembly through the rotation function of the rotatable base, so that it can be released from the fixed constraint and depend on gravity, thereby realizing convenient and safe installation and removal of heavy rolls, significantly reducing the operation difficulty and labor intensity.

[0004] The technical solution provided by the present application to solve the above problem is a feeding limiting mechanism for patch production, comprising a feeding rack, the feeding rack comprising a rack body and a feeding roll for winding an adhesive layer, the feeding roll being rotatably installed on the rack body. The rack body comprises a fixed support and a rotatable base, the fixed support and the rotatable base being arranged on both sides of the machine table, one end of the feeding roll being hinged to the rotatable base, a fixed slot one being provided on the upper end of the fixed support, a fixed plate being provided on the fixed slot one through bolts, and one end of the feeding roll being positioned through the fixed plate after being matched with the fixed slot.

[0005] Preferably, the lower end surface of the fixed plate is provided with a fixed slot two matched with the feeding roll.

[0006] Preferably, the rotatable base comprises a seat body, a rotating seat and a fixed support, the seat body is fixedly installed on a machine table, the seat body is provided with a rotating groove, the rotating seat is rotatably installed in the rotating groove, the fixed support is fixedly installed on the upper end of the rotating seat, and the feeding roller is hingedly connected with the fixed support.

[0007] Preferably, one end of the feeding roller is provided with a connecting frame, and one end of the connecting frame is hingedly connected with the fixed support.

[0008] The application further discloses a slitting device for patch production, which comprises the feeding limiting mechanism according to any one of the above-mentioned application, and further comprises a machine table, a spraying mechanism for spraying a drug matrix and a slitting mechanism, wherein the feeding limiting mechanism, the spraying mechanism and the slitting mechanism are sequentially installed on the machine table.

[0009] Preferably, the control mechanism is electrically connected with the feeding limiting mechanism, the spraying mechanism and the slitting mechanism, and is used for controlling the operation and stop of the feeding limiting mechanism, the spraying mechanism and the slitting mechanism.

[0010] Preferably, the control mechanism comprises a machine box and a plurality of regulating units arranged in the machine box.

[0011] Preferably, the control mechanism further comprises a fire extinguishing module, and the fire extinguishing module is used for extinguishing fire in the machine box.

[0012] Preferably, the fire extinguishing module comprises a sensing component, a powder storage component, a driving component and a plurality of powder spraying components, the sensing component is distributed in the machine box, the powder storage component stores a fire extinguishing agent, the powder spraying components are spaced apart and arranged in the machine box, when the sensing component senses fire in the machine box, the driving component is controlled to be opened to deliver the fire extinguishing agent in the powder storage component to the powder spraying components to be sprayed out, and the sensing component comprises a heat sensor and a smoke sensor.

[0013] The powder spraying device comprises a powder storage component, a driving component, a powder spraying component and an insurance mechanism.

[0014] Compared with the prior art, the application has the advantages that: the space position and stress state of the feeding roller during disassembly are ingeniously changed by the rotation function of the rotatable base, so that the feeding roller can be released from the fixed constraint and depend by gravity, thereby realizing convenient and safe mounting and dismounting of the heavy roller body, and significantly reducing the operation difficulty and labor intensity BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which are included to provide a further understanding of the application and constitute a part of this application, illustrate certain illustrative embodiments of the application and together with the description serve to explain the application.

[0016] Figure 1 is a schematic view of the feeding limiting mechanism of the application; Figure 2 is a front view of the feeding limiting mechanism of the application; Figure 3 is a top view of the slitting device of the application; Figure 4 is a schematic view of the control mechanism of the application; Figure 5 is a partial cross-section of the powder spraying unit of the present application Figure 1 ; Figure 6 is an enlarged view of A in Figure 5 ; Figure 7 is a partial cross-section of the powder spraying unit of the present application Figure 2 .

[0017] Fig. 1 is a fixed support, 2 is a feeding roller, 3 is a connecting frame, 4 is a fixed support, 5 is a rotating seat, 6 is a seat body, 7 is a fixed plate, 8 is a slitting mechanism, 9 is a control unit, 10 is an electric push rod, 11 is a flexible storage tank, 12 is a conveying branch pipe, 13 is a main conveying pipe, 14 is a sleeve, 15 is a temperature-sensitive plate, 16 is a through hole, 17 is a linkage block, 18 is a gate plate, 19 is a cable, 20 is a reset spring I, 21 is an embedding groove, 22 is a spraying port, 23 is a sealing plug, 24 is a pressure cavity, 25 is a reset spring II, 26 is a push plate, 27 is a spraying mechanism, 28 is a rack, and 29 is a machine case. DETAILED DESCRIPTION

[0018] The embodiments of the present application will be described in detail with the accompanying drawings and examples, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented.

[0019] In the description of the present application, it should be noted that for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. The orientation and position relationship shown in the drawing is based on the orientation or position relationship shown in the drawing, and is only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the "first" and "second" features defined can explicitly or implicitly include one or more features, and in the description of the present application, the meaning of "several" is two or more, unless otherwise explicitly specified.

[0021] In the present application, unless otherwise explicitly specified and limited, the terms such as "assembly", "connection", "linkage" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection; can be direct connection, can also be connection through intermediate medium, can be internal connection of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] It should be understood that the terms "comprise" and "include" as used in the specification and the appended claims indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0023] It should also be understood that the terms used in the present application embodiment specification are only for the purpose of describing specific embodiments and are not intended to limit the present application embodiment. As used in the present application embodiment specification and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0024] Embodiment 1

[0025] The present embodiment discloses a feeding limiting mechanism for patch production, specifically comprising a feeding frame, the feeding frame comprises a frame body and a feeding roller for winding an adhesive layer, the feeding roller is rotatably installed on the frame body; The frame body comprises a fixed support and a rotatable base, the fixed support and the rotatable base are separately arranged on both sides of the machine table, one end of the feeding roller is hinged to the rotatable base, a fixed groove one is arranged at the upper end of the fixed support, a fixed plate is arranged on the fixed groove one through bolts, and one end of the feeding roller is positioned through the fixed plate after being matched with the fixed groove.

[0026] The lower end surface of the fixed plate is provided with a fixed groove two matched with the feeding roller, and the feeding roller is fixed through the fixed groove one and the fixed groove two.

[0027] Further, the rotatable base comprises a seat body, a rotating seat and a fixed support, the seat body is fixedly installed on the machine table, the seat body is provided with a rotating groove, the rotating seat is rotatably installed in the rotating groove, the fixed support is fixedly installed on the upper end of the rotating seat, and the feeding roller is hinged to the fixed support; and one end of the feeding roller is provided with a connecting frame, one end of the connecting frame is hinged to the fixed support.

[0028] The installation process of the feeding roller in the above scheme: when the operator installs the feeding roller with the adhesive layer wound thereon, first, align the connecting frame at one end of the feeding roller with the fixed support on the rotatable base on one side of the machine table and complete the hinging. Then, rotate the rotating seat of the rotatable base manually to make it rotate in the rotating groove of the seat body fixed on the machine table, thereby driving the hinged feeding roller to rotate synchronously. Adjust the roller shaft at the other end of the feeding roller to be directly above the fixed support on the other side of the machine table and smoothly put it into the fixed groove one at the upper end of the fixed support. Finally, fasten the fixed plate to the fixed support using bolts to make the fixed groove two at the lower end face of the fixed plate and the fixed groove one on the fixed support together form firm clamping and axial positioning of the end of the feeding roller, thereby completing the installation and fixation of the feeding roller and enabling normal feeding operation.

[0029] When it is necessary to replace or remove the feeding roller, first, disassemble the bolts on the fixed plate, remove the fixed plate from the fixed support, and thereby release the locking of the end of the feeding roller. Then, the operator reversely rotates the rotating seat of the rotatable base. The rotating seat rotates in the rotating groove of the seat body, drives the hinged end of the feeding roller and the entire feeding roller to rotate horizontally around the vertical axis, and makes the end of the feeding roller previously fixed rotate away from the locking position directly opposite the fixed support and completely out of the blocking range of the fixed support. At this time, the roller body of the feeding roller (including the roller body and the roller shaft, and the roller body can be detachably installed on the roller shaft) naturally sags under the action of gravity, and the operator can conveniently hold the roller body to remove it from the roller shaft for replacement.

[0030] The core of the entire working process is that the spatial position and stress state of the feeding roller during disassembly are ingeniously changed through the rotating function of the rotatable base, so that the feeding roller can be released from the fixed constraint and sag by gravity, thereby realizing convenient and safe installation and disassembly of the heavy roller body and significantly reducing the operation difficulty and labor intensity.

[0031] Embodiment 2

[0032] The embodiment discloses a slitting device for patch production, which comprises the feeding limiting mechanism as described in Embodiment 1, further comprises a machine table, a spraying mechanism for spraying a drug matrix, and a slitting mechanism for slitting an adhesive layer, and the feeding limiting mechanism, the spraying mechanism, and the slitting mechanism are sequentially installed on the machine table. It should be noted that the spraying mechanism and the slitting mechanism both belong to the prior art, and thus will not be described here.

[0033] Further comprising a control assembly, the control assembly comprises a machine case 4 and a plurality of control modules 9 integrally arranged inside the machine case 4, and is used for realizing electrical control and logical operation of the device.

[0034] To cope with the risk of fire caused by electrical failure inside the case, the scheme creatively integrates an intelligent fire extinguishing system. The fire extinguishing system includes sensing components, powder storage components, driving components, and a plurality of distributed powder spraying components, forming an active protection system integrating monitoring, starting, conveying, and precise spraying. The sensing components are multiple, installed in key positions and potential hot spot areas (such as high-power modules and wiring terminal blocks) in the case 4 using an array distribution strategy to achieve early and all-around perception of fire. The powder storage component is a storage unit for fire extinguishing agent, filled with high-efficiency insulating dry powder extinguishing agent. The powder spraying components are multiple, optimally installed in a spaced manner according to the internal space structure and equipment layout of the case to ensure that the fire extinguishing agent covers no dead angle. When any of the sensing components detects signs of fire (such as abnormal temperature rise or smoke) in the case 4, the system main control unit responds immediately, instructing the driving component to start, thereby conveying the fire extinguishing agent in the powder storage component to the corresponding powder spraying component as needed and precisely spraying it out to achieve rapid suppression.

[0035] Specifically, the sensing components preferably use composite sensors, including but not limited to heat sensors for detecting abnormal temperature points and smoke sensors for detecting smoke in the initial stage of smoldering, a double-judgment mechanism effectively reduces the false alarm rate and improves response accuracy.

[0036] The powder storage component uses a flexible storage tank 11 with variable volume, made of corrosion-resistant and high-elasticity sealing material, forming a closed fire extinguishing agent storage cavity. The fire extinguishing agent is pre-pressurized and stored inside the flexible storage tank 11. The driving component includes an electric telescopic rod 10 as a power source and a pressure plate 26 as a pressure transfer medium. The electric telescopic rod 10 is stably installed on the idle area or dedicated base inside the case 4 through a support. The pressure plate 26 is rigidly connected with the output end of the electric telescopic rod 10, and its planar size matches one side of the flexible storage tank 11, so that one side of the pressure plate 26 can fully abut the outer surface of the flexible storage tank 11. When the electric telescopic rod 10 receives a start signal and extends, it will push the pressure plate 26 to move linearly, thereby uniformly and stably compressing the flexible storage tank 11 and applying continuous pressure to the fire extinguishing agent inside.

[0037] In this embodiment, further, to achieve partitioned precise spraying, the powder spraying components use a modular design. It includes a main powder conveying pipe 13 as a fire extinguishing agent conveying trunk and a plurality of powder spraying units as terminals. One end of the main powder conveying pipe 13 is connected to the outlet of the flexible storage tank 11 through a sealing joint. A plurality of powder spraying units are connected in parallel or series with the main powder conveying pipe 13 through tee joints or branch pipe joints, forming a fire extinguishing agent distribution network. Each powder spraying unit includes a communication pipe 12 as a fire extinguishing agent flow channel and a plurality of independent temperature-sensitive trigger units arranged along the length of the communication pipe.

[0038] At least one powder injection hole 22 is formed in the wall of the communicating pipe 12 for each potential protection point. The temperature-sensitive trigger unit is arranged in the wall of the communicating pipe 12 adjacent to each powder injection hole 22. Each temperature-sensitive trigger unit comprises a sensing plate 15 as a heat-sensitive actuating element, a baffle 18 as a flow control valve core, and a spring 20 providing a reset force. A mounting groove 21 is formed in the wall of the communicating pipe 12 corresponding to each powder injection hole 22, and the sensing plate 15 is fitted in the mounting groove 21 with its outer surface exposed to the air in the cabinet to sense the ambient temperature. The sensing plate 15 is preferably made of a thermal expansion material with shape memory effect or a significant thermal expansion coefficient (e.g. a specific proportion of titanium-nickel shape memory alloy), and its deformation temperature is accurately set slightly higher than the upper limit of the normal working temperature of the cabinet. One end of the baffle 18 is fixedly connected to the inner surface of the sensing plate 15, and the main body of the baffle 18 is located in the inner cavity of the communicating pipe 12. A through hole, i.e. a communicating hole 16, is formed in the baffle 18, and the diameter of the communicating hole 16 matches the diameter of the powder injection hole 22. In the normal state (i.e. without fire), the spring 20 is in a pre-compressed state, one end of the spring 20 is connected to the groove bottom of the mounting groove 21, and the other end of the spring 20 is connected to the baffle 18. The spring force of the spring 20 pushes the baffle 18 to an initial position, so that the communicating hole 16 in the baffle 18 is misaligned with the powder injection hole 22 in the wall of the communicating pipe 12, thereby closing the injection channel.

[0039] When the local ambient temperature of the temperature-sensitive trigger unit increases due to fire and reaches the preset deformation temperature of the sensing plate 15, the sensing plate 15 will undergo a predetermined shape change (elongation). The deformation generates a driving force that directly acts on the baffle 18 connected thereto, causing the baffle 18 to move or rotate against the spring force of the spring 20. As the baffle 18 moves, the communicating hole 16 in the baffle 18 gradually aligns with the powder injection hole 22 in the wall of the communicating pipe 12, thereby forming a unique outlet for the injection of fire extinguishing agent at this point.

[0040] To ensure the reliability of the fire extinguishing function in extreme cases (such as individual temperature sensing unit mechanical jam), the powder spraying unit also integrates a set of mechanical pressure linkage safety mechanism. The safety mechanism includes: a piston head 23 as a secondary seal, a mounting tube 14 as a guide and mounting base, a spring 25 providing secondary reset force, and a traction rope 19 as a linkage medium. The mounting tube 14 is coaxially connected at the end or a specific position of the communication pipe 12. In the communication pipe 12, a stepped or cylindrical pressure chamber 24 is formed adjacent to the mounting tube 14. The piston head 23 is slidingly installed in the pressure chamber 24, and under normal conditions, it is pushed against the entrance of the pressure chamber 24 under the action of spring 25, serving as a seal for the main channel. One end of the spring 25 is fixed at the bottom of the pressure chamber 24 (away from the entrance end), and the other end is connected to the back of the piston head 23. On the baffle 18, a connecting block 17 is fixedly provided. The traction rope 19 is made of flexible wire material (such as metal wire or high-silicon oxygen fiber rope) with high temperature resistance and high tensile strength, one end of which is fixedly connected to the connecting block 17, and the other end extends into the interior of the pressure chamber 24 through the side wall guide hole and is fixedly connected to the piston head 23. Importantly, the connecting blocks 17 of adjacent baffles on the same communication pipe 12 are also connected in series by the traction rope 19, so that all the powder spraying holes can be opened synchronously or sequentially through this mechanical linkage.

[0041] Working principle and synergistic effect: As known by those skilled in the art, fire in the case often starts from a certain electrical component and then spreads. If the specific component can be precisely extinguished at the initial stage of the fire, the fire extinguishing efficiency will be greatly improved and the fire extinguishing agent will be saved. The present scheme is designed based on this purpose, and the working logic is divided into two levels of normal triggering and redundant linkage.

[0042] First level: normal temperature sensing triggering and precise fire extinguishing.

[0043] When initial fire occurs in the case 4, the smoke and temperature sensors evenly distributed in the case first sense the smoke and abnormal temperature rise, and the signals are transmitted to the control module 9, triggering the fire extinguishing response. The control system starts the driving part, and the electric telescopic rod 10 rapidly extends, pushing the compression plate 26 to linearly compress the flexible storage tank 11. The dry powder extinguishing agent in the flexible storage tank 11 is compressed and sent to the communication pipe 12 of each powder spraying unit through the main powder conveying pipe 13 under the action of pressure, completing the filling and pressurization of the extinguishing agent in the entire pipe network system.

[0044] The key to extinguishing the fire is the accurate spraying. At the spraying unit near the fire point, the high-temperature thermal radiation or convection causes the corresponding thermal expansion sensing plate 15 on the communication pipe 12 to rapidly increase in temperature. When the local temperature reaches its preset deformation temperature, the sensing plate 15 produces a micro or macro shape change. This deformation directly translates into a mechanical displacement, driving the shutter 18 connected thereto to move accurately against the elastic force of the spring 20. With the movement of the shutter 18, the communication hole 16 thereon is finally fully aligned with the spraying hole 22 on the wall of the communication pipe 12, forming a low-resistance spraying channel. At the same time, the movement of the shutter 18 pulls the connecting block 17 thereon, tightening the traction rope 19. The tension of the traction rope 19 is transmitted to the safety mechanism, driving the piston head 23 to move backward in the pressure chamber 24 against the elastic force of the spring 25, thereby releasing the initial blockage of the main channel of the communication pipe 12 by the piston head 23, and clearing the obstacle for the flow of the main trunk fire extinguishing agent. At this point, the flow channel of the fire extinguishing agent from the flexible storage tank to the fire point is fully opened. Under the continuous pressure of the system, the fire extinguishing agent flows through the aligned communication hole 16 and spraying hole 22 at high speed, forming a directional jet, and directly spraying to the area where the high-temperature sensing plate 15 is located, i.e. the surface and surrounding of the fire element, achieving accurate rescue of “point to point”, effectively shortening the fire extinguishing time, and minimizing the pollution to the non-fire area equipment.

[0045] For the area that has not caught fire, the sensing plate 15 of the spraying unit thereof remains unchanged due to the environmental temperature not reaching the deformation threshold. The corresponding shutter 18 remains in the initial position under the action of the spring 20, the communication hole 16 and the spraying hole 22 are misaligned, the channel is closed; the traction rope 19 is in a relaxed state, and the piston head 23 remains blocked to the pipeline under the action of the spring 25. Therefore, the fire extinguishing agent is effectively restrained and cannot be mis-sprayed from these modules that are not affected by the fire, ensuring the accuracy of the protection.

[0046] Second level: Redundant linkage forced opening and system safety.

[0047] One of the core innovations of the present scheme is to design a mechanical redundant linkage opening mechanism based on system pressure when the primary temperature sensing trigger mechanism fails, achieving double insurance.

[0048] In extreme cases, if the spraying unit closest to the fire point fails to open normally due to contamination of the sensing plate 15, mechanical jamming or insufficient local heat flow to reach the deformation point (i.e. the sensing plate and shutter thereof do not act, and the piston head also remains in the blocking position), the local pipeline will be in a closed state.

[0049] At this time, due to the continuous pressure of the electric telescopic rod, the pressure in the flexible storage tank and the main powder conveying pipe network which has been pressurized will continue to accumulate and cannot be released through the target outlet. The continuously rising system pressure will be conducted to the specific pressure surface of the pressure chamber 24 of all the powder injection units through the fluid. When the pressure in the system is sufficient to overcome the preset pre-tightening force of the spring two 25 on the other side of the corresponding piston head 23, and a net pressure difference sufficient to push the piston head 23 to move is formed, the piston head 23 will be forced to move backward by the fluid pressure.

[0050] The movement of the piston head 23 reversely and mechanically pulls the connecting block 17 and the baffle 18 through the traction rope 19 fixed thereto, forcing them to displace against the resistance of the spring one 20 and possible stuck friction. This action enables the system to forcibly move the baffle at the failure point to a position where the communication hole is aligned with the powder injection hole, relying on the physical signal of the overall pressure rise, even if the temperature sensing plate fails to deform due to heat. After the pipeline is forced to open, the accumulated high-pressure extinguishing agent is immediately injected from the originally failed module powder injection hole and acts on the fire area.

[0051] It is worth noting that this process is globally linked. The rise of system pressure will act on the safety mechanism of all powder injection units that fail to open through normal temperature sensing at nearly the same time. Therefore, once the system pressure reaches the unified mechanical action threshold, multiple powder injection units that may be in a closed state due to local sensing failure will be synchronously forced to open, forming an overlapping supplementary fire extinguishing injection, ensuring that the fire is effectively controlled.

[0052] This design has double advantages: first, safety pressure relief, which prevents the risk of physical damage to the flexible storage tank or pipeline due to excessive pressure caused by accidental blockage of individual outlets; second, functional redundancy, which ensures that the overall fire extinguishing function of the system can still be reliably executed even in the extreme case of complete failure of local temperature sensing elements, greatly improving the robustness and reliability of the system.

[0053] In summary, the present scheme builds a fire extinguishing system for electrical equipment with rapid response, accurate positioning and high reliability through the multi-level cooperative mechanism of "electronic sensing global early warning + mechanical temperature sensing local triggering + pressure linkage redundancy guarantee", which has high practical value and market prospect.

[0054] The above only describes the best embodiment of the present application, but cannot be understood as limiting the claims. The present application is not limited to the above embodiments, and the specific structure allows changes. Any changes made within the protection scope of the independent claims of the present application are within the protection scope of the present application.

Claims

1. A feeding and limiting mechanism for adhesive application production, characterized in that, The system includes a feeding rack, which comprises a frame and a feeding roller for winding an adhesive layer, the feeding roller being rotatably mounted on the frame. The frame includes a fixed bracket and a rotatable base, which are respectively located on both sides of the machine. One end of the feeding roller is hinged to the rotatable base. The upper end of the fixed bracket is provided with a fixing groove, and a fixing plate is installed on the fixing groove by bolts. After one end of the feeding roller is engaged with the fixing groove, it is positioned by the fixing plate.

2. The feeding and limiting mechanism for adhesive application production according to claim 1, characterized in that, The lower end face of the fixed plate is provided with a fixing groove 2 that cooperates with the feeding roller.

3. The feeding and limiting mechanism for adhesive application production according to claim 1, characterized in that, The rotatable base includes a base body, a rotating seat, and a fixed bracket. The base body is fixedly installed on the machine platform, and a rotating groove is provided on the base body. The rotating seat is rotatably installed in the rotating groove. The fixed bracket is fixedly installed on the upper end of the rotating seat, and the feeding roller is hinged to the fixed bracket.

4. The feeding and limiting mechanism for patch production according to claim 3, characterized in that, One end of the feeding roller is provided with a connecting frame, and one end of the connecting frame is hinged to the fixed bracket.

5. A slitting device for plaster production, characterized in that: The device includes the feeding limiting mechanism as described in any one of claims 1-4, and further includes a machine base, a spraying mechanism for spraying the drug matrix, and a cutting mechanism, wherein the feeding limiting mechanism, the spraying mechanism, and the cutting mechanism are sequentially installed on the machine base.

6. A slitting device for patch production according to claim 5, characterized in that, It also includes a control mechanism, which is electrically connected to the feeding limit mechanism, the spraying mechanism and the slitting mechanism respectively. The control mechanism is used to control the operation and stop of the feeding limit mechanism, the spraying mechanism and the slitting mechanism.

7. A slitting device for patch production according to claim 6, characterized in that, The control mechanism includes a chassis and multiple control units disposed within the chassis.

8. A slitting device for patch production according to claim 7, characterized in that, The control mechanism also includes a fire extinguishing module, which is used to extinguish fires when they occur inside the chassis.

9. A slitting device for patch production according to claim 8, characterized in that, The fire extinguishing module includes a sensing component, a powder storage component, a driving component, and several powder spraying components. There are multiple sensing components evenly distributed inside the chassis. The powder storage component stores fire extinguishing agent. There are multiple powder spraying components installed at intervals inside the chassis. When the sensing component detects a fire inside the chassis, it controls the driving component to open and deliver the fire extinguishing agent from the powder storage component to the powder spraying components for spraying. The sensing component includes a heat sensor and a smoke sensor.

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