Cutting device for waterproof roll production

Abstract

The utility model provides a kind of cutting device for waterproof roll production, including rack, sliding frame, positioning mechanism and cutting assembly;Rack is equipped with the conveyor belt for conveying roll material;Sliding frame is slidably arranged on rack along the direction of roll material conveying;Positioning mechanism is arranged on sliding frame and is located above conveyor belt, positioning mechanism has two positioning rollers, two positioning rollers have respectively to the direction of the state of extension of the roll material that rolls away from each other, the cutting area is formed between two positioning rollers when the state of extension, two positioning rollers also have the recovery state of mutual approach and separate from roll material;Cutting assembly is arranged on sliding frame and is located below positioning mechanism, the output end of cutting assembly is located in cutting area.The cutting device for waterproof roll production provided by the utility model rolls in the direction of mutual separation by positioning roller before cutting, can make the roll material in cutting area freely extend, avoid partial pressure to cause material accumulation wrinkle.

Description

Technical Field

[0001] This utility model belongs to the field of waterproof membrane production technology, specifically relating to a cutting device for waterproof membrane production. Background Technology

[0002] Cutting waterproof membrane is a key process in the production of waterproof membrane. Its purpose is to cut continuously produced or large-size membrane into standard products of fixed length or width according to actual needs.

[0003] In existing waterproof membrane cutting technologies, positioning devices are typically used to fix the membrane during transport to ensure stable positioning during cutting. These positioning devices are mostly rigid pressure blocks or rollers, which apply localized pressure to the cutting area, pressing the membrane tightly against the conveyor belt to limit its displacement and provide a relatively stable working reference for the cutting blades. However, because the pressure from the positioning devices is concentrated in a localized area, the material in the constrained area cannot freely stretch under the pressure and tends to be squeezed and accumulated in the non-pressurized areas, forming wrinkles. The presence of wrinkles leads to uneven stress on the cut during cutting, causing defects such as skewed cuts and burrs, thus reducing product quality. Utility Model Content

[0004] This utility model provides a cutting device for producing waterproof membrane, which aims to improve the extensibility of the waterproof membrane to improve the quality of the finished product after cutting.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a cutting device for producing waterproof roll material is provided, including a frame, a sliding frame, a positioning mechanism, and a cutting component; a conveyor belt for transporting the roll material is provided on the frame; the sliding frame is slidably mounted on the frame and moves synchronously with the conveyor belt; the positioning mechanism is located on the sliding frame and above the conveyor belt, and the positioning mechanism has two positioning rollers, which have an extended state in which they roll the roll material away from each other, and a cutting area is formed between the two positioning rollers in the extended state; the two positioning rollers also have a retracted state in which they move closer to each other and lift away from the roll material; the cutting component is located on the sliding frame and below the positioning mechanism, and the output end of the cutting component is located within the cutting area.

[0006] In one possible implementation, the positioning mechanism includes a sliding member, a first telescopic drive member, and two linkage assemblies; the sliding member is vertically slidably connected to the sliding frame and located above the cutting assembly; the first telescopic drive member is disposed on the sliding frame and its output end is connected to the sliding member; the two linkage assemblies are respectively disposed on both sides of the sliding member to connect the two ends of the two positioning rollers, and are used to drive the two positioning rollers to switch between an extended state and a retracted state under the drive of the sliding member.

[0007] In some embodiments, each linkage assembly includes two first rods, two second rods, and an elastic telescopic member; the two first rods are respectively located at both ends of the sliding member, and each of the two first rods has a hinge seat at its bottom; the two second rods are respectively hinged to the two hinge seats and respectively connected to both ends of one of the positioning rollers; the two ends of the elastic telescopic member are respectively hinged to the two second rods.

[0008] For example, the elastic telescopic component includes a telescopic rod and an elastic element; both ends of the telescopic rod are provided with hinges, and the two hinges are respectively hinged to two second rod bodies; the elastic element is sleeved on the telescopic rod, and its two ends are respectively connected to the two hinges.

[0009] For example, each of the two hinged seats has a limiting member on the side that is close to each other, and the two limiting members are used to limit the rotation angle of each second rod.

[0010] In some embodiments, a plurality of first slide rods are vertically arranged on the top of the sliding member, and each first slide rod is slidably connected to the sliding frame.

[0011] In one possible implementation, a mounting plate is horizontally arranged on the sliding frame along the extension direction of the conveyor belt; the cutting assembly includes two second telescopic drive members and a cutter; the two second telescopic drive members are respectively located on both sides of the mounting plate; the cutter is vertically slidably arranged on the mounting plate and located between two positioning rollers, and its two ends are respectively connected to the output ends of the two second telescopic drive members.

[0012] In some embodiments, a second slide bar is vertically provided at the top of the cutter, and the second slide bar is slidably connected to the mounting plate.

[0013] For example, multiple slide rails are horizontally arranged at the bottom of the frame along the conveying direction of the conveyor belt, and the sliding frame is slidably mounted on each slide rail.

[0014] In one possible implementation, a rotary drive is provided on the frame, located below the conveyor belt, and a screw rod is connected to the output end of the rotary drive. The screw rod is rotatably mounted on the frame, and a sliding frame is sleeved on the screw rod and threadedly engaged with the screw rod.

[0015] The beneficial effects of the cutting device for waterproof membrane production provided by this utility model are as follows: Compared with the prior art, this utility model, by setting positioning rollers that can switch between extended and retracted states, allows the positioning rollers to roll away from each other before cutting, so that the two positioning rollers are in an extended state. This allows the membrane in the cutting area to extend freely, avoiding the material accumulation and wrinkling problems caused by local pressure from traditional rigid positioning components. At the same time, the sliding frame can slide synchronously along the membrane conveying direction, which can cooperate with the cutting components located in the cutting area to ensure that the cutter and the membrane remain relatively stationary during cutting, providing a stable benchmark for the cutting work. This can effectively reduce defects such as skewed cuts and rough edges caused by wrinkles, and improve cutting quality and accuracy. After cutting, the positioning rollers move closer together and separate from the membrane to switch to the retracted state, avoiding obstruction of membrane conveying and adapting to the rhythm requirements of continuous membrane production. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of a cutting device for producing waterproof membrane provided in an embodiment of this utility model;

[0017] Figure 2 This is a front view of the positioning roller in the extended state as used in the embodiment of this utility model.

[0018] Figure 3 This is a front view of the positioning roller in the recycling state as used in the embodiment of this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the sliding frame used in the embodiment of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the linkage assembly used in the embodiments of this utility model;

[0021] Figure 6 for Figure 5 A magnified view of area A in the image;

[0022] Figure 7 This is a three-dimensional structural diagram of the rotary drive component and the screw rod used in the embodiments of this utility model;

[0023] In the diagram: 10. Frame; 11. Conveyor belt; 12. Rotary drive component; 13. Screw rod; 14. Slide rail; 20. Sliding frame; 21. Mounting plate; 30. Positioning mechanism; 31. Positioning roller; 32. Sliding component; 321. First slide rod; 33. First telescopic drive component; 34. Linkage assembly; 341. First rod body; 3411. Hinge seat; 342. Second rod body; 343. Elastic telescopic component; 3431. Telescopic rod; 3432. Elastic component; 3433. Hinge component; 35. Limiting component; 40. Cutting assembly; 41. Second telescopic drive component; 42. Cutter; 421. Second slide rod; 50. Roll material. Detailed Implementation

[0024] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on the other element. It should be understood that the terms "upper," "lower," "front," "rear," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] Please refer to the following: Figures 1 to 3The present invention provides a cutting device for producing waterproof membrane. The cutting device includes a frame 10, a sliding frame 20, a positioning mechanism 30, and a cutting assembly 40. The frame 10 is equipped with a conveyor belt 11 for transporting the membrane 50. The sliding frame 20 is slidably mounted on the frame 10 and moves synchronously with the conveyor belt 11. The positioning mechanism 30 is mounted on the sliding frame 20 and located above the conveyor belt 11. The positioning mechanism 30 has two positioning rollers 31, which are in an extended state where they roll the membrane 50 away from each other. In the extended state, a cutting area is formed between the two positioning rollers 31. The two positioning rollers 31 also have a retracted state where they move closer together and lift away from the membrane 50. The cutting assembly 40 is mounted on the sliding frame 20 and located below the positioning mechanism 30. The output end of the cutting assembly 40 is located within the cutting area.

[0027] It should be noted that the roll material 50 is continuously conveyed to the cutting area via the conveyor belt 11 on the frame 10. The sliding frame 20 slides along the conveying direction, driving the positioning mechanism 30 and the cutting assembly 40 to move synchronously, ensuring that they remain relatively stationary with respect to the roll material 50 during cutting, and ensuring that the cut is subjected to uniform force. The two positioning rollers 31 of the positioning mechanism 30 roll the roll material 50 horizontally to both sides in an extended state, eliminating wrinkles on the surface of the roll material 50 through active stretching, forming a flat cutting area. At this time, the positioning rollers 31 maintain contact with the roll material 50 but do not apply concentrated pressure to avoid material accumulation.

[0028] The cutting assembly 40 is located within the cutting area below the positioning roller 31. After the positioning roller 31 completes the extension of the roll 50, the output end of the cutting assembly 40 presses down vertically, completing the cutting on the stable reference surface formed by the positioning roller 31. After cutting, the two positioning rollers 31 move closer together and disengage from the roll 50 to switch to the recycling state, avoiding affecting the subsequent conveying of the roll 50. The sliding frame 20 can slide back to its initial position to wait for the next synchronous movement and cutting, repeating the above process to achieve continuous automated production.

[0029] The two positioning rollers 31 roll the roll 50 to both sides in the extended state, avoiding the material accumulation problem caused by traditional local pressure, keeping the roll 50 in the cutting area flat, providing a stable working reference for the cutting assembly 40, and reducing the impact of wrinkles on cutting from the root.

[0030] Compared with the prior art, the cutting device for waterproof roll production provided by this utility model has a unique feature: by setting positioning rollers 31 that can switch between extended and retracted states, the positioning rollers 31 roll away from each other before cutting, so that the two positioning rollers 31 are in an extended state. This allows the roll material 50 in the cutting area to extend freely, avoiding the material accumulation and wrinkling problems caused by local pressure from traditional rigid positioning components. At the same time, the sliding frame 20 can slide synchronously along the conveying direction of the roll material 50, which can cooperate with the cutting component 40 located in the cutting area to ensure that the cutter 42 and the roll material 50 remain relatively stationary during cutting, providing a stable benchmark for the cutting work. This can effectively reduce defects such as skewed cuts and rough edges caused by wrinkles, and improve cutting quality and accuracy. After cutting, the positioning rollers 31 move closer together and separate from the roll material 50 to switch to the retracted state, avoiding obstruction of the conveying of the roll material 50 and adapting to the rhythm requirements of continuous production of the roll material 50.

[0031] Please see Figure 4 The positioning mechanism 30 includes a sliding member 32, a first telescopic drive member 33, and two connecting rod assemblies 34. The sliding member 32 is vertically slidably connected to the sliding frame 20 and located above the cutting assembly 40. The first telescopic drive member 33 is disposed on the sliding frame 20 and its output end is connected to the sliding member 32. The two connecting rod assemblies 34 are respectively disposed on both sides of the sliding member 32 to connect the two ends of the two positioning rollers 31, and are used to drive the two positioning rollers 31 to switch between the extended state and the retracted state under the drive of the sliding member 32.

[0032] It should be noted that the first telescopic drive component 33 can be a cylinder. When positioning the roll material 50 is required, the first telescopic drive component 33 is activated, pushing the sliding component 32 to slide vertically downward along the sliding frame 20. The downward movement of the sliding component 32 is transmitted through the linkage assembly 34, converting the vertical motion into the horizontal movement of the two positioning rollers 31. The linkage assembly 34, through the rotation of the hinge point and the linkage of the rod body, converts the linear motion of the sliding component 32 into the horizontal opening and closing motion of the positioning rollers 31. When the sliding component 32 moves downward, the linkage assembly 34 expands, causing the positioning rollers 31 to move to both sides; when the sliding component 32 moves upward, the linkage assembly 34 retracts, driving the positioning rollers 31 to move closer and upward, separating the positioning rollers 31 from the roll material 50. In the extended state, the positioning rollers 31 roll in contact with the surface of the roll material 50, and through rolling friction, drive the roll material 50 to extend to both sides, avoiding the damage to the surface of the roll material 50 caused by the sliding friction of traditional rigid pressure blocks.

[0033] Through the mechanical transmission of the linkage assembly 34, the simple vertical motion is transformed into a precise horizontal positioning action, enabling the positioning roller 31 to switch quickly and stably between the extending and retracting states, adapting to the high-speed production rhythm. Compared with the traditional local pressure application, the rolling extension method of the positioning roller 31 can more effectively eliminate wrinkles on the surface of the roll 50, significantly improving the flatness of the roll 50 in the cutting area and reducing cut skew and burr defects.

[0034] Please see Figure 5 Each linkage assembly 34 includes two first rods 341, two second rods 342, and an elastic telescopic member 343. The two first rods 341 are respectively located at both ends of the sliding member 32, and each of the two first rods 341 has a hinge seat 3411 at its bottom. The two second rods 342 are respectively hinged to the two hinge seats 3411 and respectively connected to both ends of one of the positioning rollers 31. The two ends of the elastic telescopic member 343 are respectively hinged to the two second rods 342.

[0035] It should be noted that each linkage assembly 34 includes two first rods 341, two second rods 342, and an elastic telescopic member 343, symmetrically distributed on both sides of the sliding member 32. The top end of the first rod 341 is hinged to the sliding member 32, and the hinge seat 3411 at the bottom end is hinged to the middle of the second rod 342, forming a rotatable four-bar linkage structure. The ends of the two second rods 342 are rigidly connected to the two ends of the positioning roller 31, ensuring that the positioning roller 31 moves horizontally as the second rods 342 rotate. The elastic telescopic member 343 spans the two second rods 342, and its two ends are connected by hinge points, forming an elastic linkage structure.

[0036] When the sliding member 32 moves downward under the action of the first telescopic drive member 33, the first rod 341 moves downward accordingly and rotates around the hinge point, pushing the second rod 342 outward. The opening of the second rod 342 causes the positioning roller 31 to move horizontally to both sides, while stretching the elastic telescopic member 343, allowing it to store elastic potential energy. When the second rod 342 abuts against the inner wall of the sliding frame 20, the positioning roller 31 reaches its maximum extension position, forming a stable cutting area. The elastic telescopic member 343 provides elastic resistance during the stretching process, causing the positioning roller 31 to roll slowly on the roll material 50, ensuring uniform pressure distribution. When the sliding member 32 moves upward, the elastic potential energy of the elastic telescopic member 343 is released, assisting the second rod 342 to retract quickly, allowing the positioning roller 31 to quickly detach from the surface of the roll material 50. The elastic action of the elastic telescopic member 343 provides a cushioning effect when the positioning roller 31 contacts the roll material 50, reducing damage to the surface of the roll material 50.

[0037] When the positioning roller 31 is in the extended state, the second rod 342 can abut against the inner wall of the sliding frame 20, forming a mechanical limit to ensure that the maximum unfolding distance of the positioning roller 31 is precisely controllable. The abutment and limiting action of the second rod 342 against the inner wall of the sliding frame 20 ensures the positional accuracy of the positioning roller 31 in the extended state, preventing uneven tension of the roll material 50 due to over-unfolding and improving the flatness of the cutting area. Simultaneously, the limiting action of the second rod 342 by the sliding frame 20 enhances the positioning ability of the positioning roller 31 on the roll material 50, preventing the roll material 50 from shifting during cutting.

[0038] Please see Figure 6 The elastic telescopic component 343 includes a telescopic rod 3431 and an elastic component 3432; both ends of the telescopic rod 3431 are provided with hinges 3433, and the two hinges 3433 are respectively hinged to two second rod bodies 342; the elastic component 3432 is sleeved on the telescopic rod 3431, and both ends are respectively connected to the two hinges 3433.

[0039] It should be noted that the telescopic rod 3431, as the main body of the elastic telescopic component 343, can be hinged at both ends to the middle of the two second rods 342 via hinges 3433. This hinge design allows the telescopic rod 3431 to rotate freely in the plane, adapting to the angle changes of the second rods 342 during deployment and retraction. The elastic component 3432 can be a compression spring, sleeved on the outside of the telescopic rod 3431, with both ends fixed to the two hinges 3433 respectively. When the telescopic rod 3431 is stretched or compressed, the elastic component 3432 deforms synchronously and stores or releases elastic potential energy.

[0040] When the sliding member 32 moves downward, driving the second rod 342 to unfold, the telescopic rod 3431 is stretched, and the elastic member 3432 generates a resistance force under tension. This elastic resistance force is transmitted to the second rod 342 through the hinge 3433, causing the positioning roller 31 to slowly roll away from the roll material 50 upon contact, preventing damage to the surface of the roll material 50 from rigid impact. When the sliding member 32 moves upward, the contractile force of the elastic member 3432 assists the telescopic rod 3431 in quickly shortening, driving the second rod 342 upward and rapidly retracting. The release of elastic potential energy accelerates the separation action of the positioning roller 31, reducing the contact time with the roll material 50 and lowering the risk of frictional damage. For roll materials 50 of different thicknesses, the elastic member 3432 can automatically adjust the effective length of the telescopic rod 3431 through its own deformation, and cooperate with the first telescopic drive member 33 to control its movement in the vertical direction, ensuring that the second rod 342 always abuts against the inner wall of the sliding frame 20, thus achieving the positioning of the roll material 50 by the positioning roller 31.

[0041] Please see Figure 6 Each of the two hinge seats 3411 is provided with a limiting member 35 on the side that is close to each other. The two limiting members 35 are respectively used to limit the rotation angle of each second rod 342.

[0042] It should be noted that the limiting member 35 is located inside the hinge seat 3411 at the bottom of the first rod 341 at both ends of the sliding member 32. Each limiting member 35 corresponds to the position of the second rod 342. When the second rod 342 rotates around the hinge seat 3411, causing the two positioning rollers 31 to move away from each other, the limiting member 35 can separate from the second rod 342 to avoid obstructing the rotation of the second rod 342. When the two positioning rollers 31 are retracted and move closer together, the second rod 342 rotates inward. The limiting member 35 can limit its excessive inward rotation to prevent the two positioning rollers 31 from colliding with each other or affecting the accuracy of the next extension action due to an excessive retraction angle.

[0043] Please see Figure 4 and Figure 5 The top of the sliding component 32 is vertically provided with multiple first sliding rods 321, and each first sliding rod 321 is slidably connected to the sliding frame 20.

[0044] It should be noted that when the first telescopic drive member 33 drives the sliding member 32 to move vertically up and down, multiple first slide rods 321 slide synchronously along the guide structure of the sliding frame 20. The sliding engagement between the first slide rods 321 and the sliding frame 20 creates a rigid constraint on the movement trajectory of the sliding member 32, ensuring that the sliding member 32 can only move vertically, preventing horizontal deviation, tilting, or rotation during movement. Multiple first slide rods 321 are evenly distributed on the top of the sliding member 32, distributing the weight and motion load of the sliding member 32 and its connected components such as the connecting rod assembly 34 and positioning roller 31 to multiple support points of the sliding frame 20, reducing stress concentration at individual connection points and ensuring the stability of the sliding member 32 during high-speed or heavy-load movement.

[0045] Please see Figure 4 A mounting plate 21 is horizontally arranged on the sliding frame 20 along the extension direction of the conveyor belt 11; the cutting assembly 40 includes two second telescopic drive members 41 and a cutter 42; the two second telescopic drive members 41 are respectively arranged on both sides of the mounting plate 21; the cutter 42 is vertically slidably arranged on the mounting plate 21 and located between two positioning rollers 31, and its two ends are respectively connected to the output ends of the two second telescopic drive members 41.

[0046] It should be noted that the mounting plate 21 is horizontally fixed on the sliding frame 20, and its extension direction is consistent with the conveying direction of the roll material 50 of the conveyor belt 11, providing a stable mounting carrier for the cutting assembly 40. The mounting plate 21 is located below the positioning mechanism 30 and between the movement paths of the two positioning rollers 31, ensuring that the working area of ​​the cutter 42 corresponds precisely to the cutting area formed by the positioning rollers 31. Both second telescopic drive components 41 can be cylinders, symmetrically distributed on both sides of the mounting plate 21, with their output ends extending vertically downwards and connected to both ends of the cutter 42, forming a dual-side drive structure. The cutter 42 is vertically slidably connected to the mounting plate 21, with the blade facing downwards and located directly below the cutting area between the two positioning rollers 31. Its sliding direction is perpendicular to the surface of the conveyor belt 11, ensuring that the cutting action is perpendicular to the plane of the roll material 50.

[0047] When the two positioning rollers 31 of the positioning mechanism 30 enter the extended state and flatten the roll 50, the cutter 42, guided by the mounting plate 21, is in the cutting position with its blade aligned with the cutting area between the positioning rollers 31. At this time, the sliding frame 20 is synchronized with the conveying speed of the roll 50, ensuring that the cutter 42 and the roll 50 are relatively stationary. During cutting, the two second telescopic drive members 41 are activated synchronously, with their output ends extending downwards. Through the connection points at both ends, they drive the cutter 42 to slide vertically downwards along the mounting plate 21. Due to the synchronicity of the dual-side drive, the cutter 42 remains horizontal during its descent, with its blade evenly contacting the surface of the roll 50 and completing the cutting. After cutting, the output ends of the second telescopic drive members 41 retract, driving the cutter 42 to slide vertically upwards and reset, detaching from the surface of the roll 50 to avoid interfering with the subsequent conveying of the roll 50 or the retraction action of the positioning rollers 31.

[0048] The cutter 42 is vertically slidably connected to the mounting plate 21. With the synchronous drive of the two second telescopic drive members 41 on both sides, it ensures that the cutter 42 remains horizontally lowered during the cutting process, with the blade perpendicular to the surface of the roll material 50. This fundamentally reduces defects such as skewed cuts and burrs, significantly improving cutting accuracy. The two second telescopic drive members 41 drive both ends of the cutter 42 respectively, forming a symmetrical double-sided driving force. This avoids uneven force and tilting of the cutter 42 caused by single-sided driving, ensuring consistent cutting force on the roll material 50 at all points of the blade, making it particularly suitable for cutting wide roll materials 50.

[0049] Please see Figure 4 The top of the cutter 42 is vertically provided with a second slide rod 421, which is slidably connected to the mounting plate 21.

[0050] It should be noted that the second slide rod 421 is vertically fixed to the top of the cutter 42, and its number can be set according to the length of the cutter 42 or the stability requirements. The top end of the second slide rod 421 can pass through the pre-set guide hole on the mounting plate 21 to form a sliding fit structure with the mounting plate 21. That is, the second slide rod 421 can slide freely along the vertical direction of the mounting plate 21, driving the cutter 42 to move synchronously.

[0051] The second slide bar 421 rigidly guides and constrains the movement trajectory of the cutter 42, ensuring that the cutter 42 descends strictly in a vertical direction during the cutting process, and that the blade remains perpendicular to the surface of the roll material 50. This effectively avoids defects such as skewed cuts and rough edges caused by the skewness of the cutter 42, further improving cutting accuracy. For wide-width waterproof roll material 50, the second slide bar 421 can distribute the force on the cutter 42 through multi-point support, preventing the cutter 42 from bending or shaking due to differences in force at both ends during cutting. This ensures that the cutting force on the roll material 50 is uniform and consistent across all parts of the blade, adapting to the cutting needs of roll materials 50 of different widths.

[0052] Please see Figure 7 Multiple slide rails 14 are horizontally arranged at the bottom of the frame 10 along the conveying direction of the conveyor belt 11, and the sliding frame 20 is slidably arranged on each slide rail 14.

[0053] It should be noted that multiple slide rails 14 are horizontally fixed to the bottom of the frame 10 along the conveying direction of the conveyor belt 11, and can be symmetrically arranged below the conveyor belt 11 in parallel to form a stable guide rail system. The extension direction of the slide rails 14 is consistent with the conveying direction of the roll material 50, ensuring that the sliding path of the sliding frame 20 is precisely matched with the movement trajectory of the roll material 50. The bottom of the sliding frame 20 is slidably set on each slide rail 14 in a nested manner, allowing the sliding frame 20 to move freely along the length of the slide rail 14, and forming a detachable sliding connection with the frame 10.

[0054] Please see Figure 7 The frame 10 is provided with a rotary drive 12, which is located below the conveyor belt 11. The output end of the rotary drive 12 is connected to a screw rod 13, which is rotatably mounted on the frame 10. The sliding frame 20 is sleeved on the screw rod 13 and threadedly engaged with the screw rod 13.

[0055] It should be noted that the rotary drive component 12 can be a motor, fixed on the frame 10 and located below the conveyor belt 11. Its output end is rigidly connected to one end of the screw rod 13, providing rotational power to the screw rod 13. The screw rod 13 is horizontally rotatably mounted on the frame 10 along the conveying direction of the roll 50, and its two ends are connected to the frame 10 through bearings and other support structures to ensure rotational stability.

[0056] When the position of the sliding frame 20 needs to be adjusted to meet cutting requirements, the rotary drive 12 is activated and drives the screw rod 13 to rotate around its own axis. Since the sliding frame 20 and the screw rod 13 are threaded together, and the sliding frame 20 is restricted by the slide rail 14 and cannot rotate synchronously with the screw rod 13, the rotational motion of the screw rod 13 is converted into linear sliding of the sliding frame 20 along the axial direction of the screw rod 13 through threaded transmission. By controlling the rotational speed and direction of the rotary drive 12, the sliding speed and direction of the sliding frame 20 can be precisely adjusted. During cutting, the rotary drive 12 drives the sliding frame 20 to slide at the same speed as the conveyor belt 11, keeping the cutting assembly 40, positioning mechanism 30, and roll material 50 relatively stationary on the sliding frame 20, providing a reference for stable cutting; after cutting is completed, the sliding frame 20 can be driven to reset.

[0057] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cutting device for producing waterproof membrane rolls, characterized in that, include: A frame, on which a conveyor belt for transporting rolls of material is provided; A sliding frame is slidably mounted on the frame and moves synchronously with the conveyor belt; A positioning mechanism is provided on the sliding frame and located above the conveyor belt. The positioning mechanism has two positioning rollers. The two positioning rollers have an extended state in which they roll the roll material away from each other. In the extended state, a cutting area is formed between the two positioning rollers. The two positioning rollers also have a retracted state in which they move closer to each other and lift away from the roll material. A cutting component is disposed on the sliding frame and located below the positioning mechanism, with the output end of the cutting component located within the cutting area.

2. The cutting device for producing waterproof membrane as described in claim 1, characterized in that, The positioning mechanism includes: The sliding component is vertically slidably connected to the sliding frame and located above the cutting assembly; A first telescopic drive component is disposed on the sliding frame, and its output end is connected to the sliding component; Two linkage assemblies are respectively located on both sides of the sliding member to connect the two ends of the two positioning rollers, and are used to drive the two positioning rollers to switch between the extended state and the retracted state under the drive of the sliding member.

3. The cutting device for producing waterproof membrane as described in claim 2, characterized in that, Each of the aforementioned link assemblies includes: Two first rods are respectively located at both ends of the sliding member, and each of the two first rods is provided with a hinge seat at its bottom; Two second rods are respectively hinged to the two hinge seats and respectively connected to both ends of one of the positioning rollers; The elastic telescopic component is hinged at both ends to the two second rods respectively.

4. The cutting device for producing waterproof membrane as described in claim 3, characterized in that, The elastic telescopic component includes: The telescopic rod has hinges at both ends, and the two hinges are respectively hinged to the two second rod bodies; An elastic element is sleeved on the telescopic rod, with two hinged elements connected to its two ends respectively.

5. The cutting device for producing waterproof membrane as described in claim 3, characterized in that, Each of the two hinge seats is provided with a limiting member on the side that is close to each other, and the two limiting members are respectively used to limit the rotation angle of each of the second rods.

6. The cutting device for producing waterproof membrane as described in claim 2, characterized in that, The top of the sliding component is vertically provided with a plurality of first sliding rods, each of which is slidably connected to the sliding frame.

7. The cutting device for producing waterproof membrane as described in claim 1, characterized in that, A mounting plate is horizontally arranged on the sliding frame along the extension direction of the conveyor belt; the cutting assembly includes: Two second telescopic drive components are respectively disposed on both sides of the mounting plate; The cutter is vertically slidably mounted on the mounting plate and located between the two positioning rollers, with its two ends respectively connected to the output ends of the two second telescopic drive members.

8. The cutting device for producing waterproof membrane as described in claim 7, characterized in that, A second slide rod is vertically mounted on the top of the cutter, and the second slide rod is slidably connected to the mounting plate.

9. The cutting device for producing waterproof membrane as described in claim 1, characterized in that, The bottom of the frame is provided with multiple slide rails horizontally along the conveying direction of the conveyor belt, and the sliding frame is slidably mounted on each slide rail.

10. The cutting device for producing waterproof membrane as described in any one of claims 1-9, characterized in that, The frame is equipped with a rotary drive component located below the conveyor belt. The output end of the rotary drive component is connected to a screw rod, which is rotatably mounted on the frame. The sliding frame is sleeved on the screw rod and threadedly engaged with it.

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