A cutting positioning mechanism for a foam strip cutting machine

Abstract

The utility model provides a kind of cutting positioning mechanism for foam strip cutting machine, it is related to foam strip cutting machine field, and it includes: cutting machine mechanism, the cutting machine mechanism includes belt conveying structure, the top of the belt conveying structure is fixedly connected with the bottom of the frame of electric heating wire cutting structure, the bottom of the frame of the belt conveying structure is provided with driving mechanism, the driving mechanism includes fixed frame, the side of the moving frame is provided with positioning mechanism, the positioning mechanism includes locating frame, the inner wall of the side of the locating frame is rotatably connected with the both ends of first auxiliary idler wheel by pivot, the inside of the locating frame is provided with moving roller frame and fixed roller frame.The utility model, through the setting of locating frame, it is convenient to limit the both sides of foam board, and then reduce the friction force when positioning and guiding by the contact of first auxiliary idler wheel and the both sides of foam board, it is convenient to the positioning transmission of foam board, reduce the phenomenon of foam board deviation.

Description

Technical Field

[0001] This utility model relates to the field of foam strip cutting machine technology, and in particular to a cutting positioning mechanism for a foam strip cutting machine. Background Technology

[0002] Foam strip cutting machines are a type of specialized equipment used for cutting foam materials into strips. They are often classified as a sub-type of foam cutting machines and are widely used in building materials, packaging, model making and other fields. They can precisely process block foam into standard or customized foam strips.

[0003] A search revealed Chinese patent CN206967636U, which discloses a PMI foam material cutting machine. The machine includes a body with four support legs bolted to the bottom. Two sides of the top of the body are bolted to a horizontal rack and a friction belt, respectively. A conveyor belt is located on one side of the friction belt, with two support columns on each side. A horizontal stepper motor is mounted at the bottom of each support column, and a vertical rack is located on one side of each support column. This invention uses a fan to fix the PMI foam material onto the conveyor belt during cutting, and the friction between the friction belt and the PMI foam material causes it to become statically charged. This static charge helps the cut PMI foam material adhere together. Furthermore, it eliminates the need for controllers and sensors, resulting in a simple structure, easy maintenance, and low cost. This invention effectively solves the problems of traditional PMI foam material cutting machines, which often fail to properly fix the foam material during cutting, are costly, and have complex structures. In existing technologies, cutting machines use belt conveyors to transport foam boards, which can easily shift on the belt, affecting the accuracy of subsequent cutting. Utility Model Content

[0004] The purpose of this invention is to provide a cutting positioning mechanism for a foam strip cutting machine, in order to solve the problem mentioned in the background art that the foam board is prone to shifting on the belt during the conveying process, which in turn affects the accuracy of subsequent cutting.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: It includes a cutting machine mechanism, comprising a belt conveyor structure, the top of which is fixedly connected to the bottom of the frame of the heating wire cutting structure. A driving mechanism is provided at the bottom of the frame of the belt conveyor structure, the driving mechanism including a fixed frame. The tops of both sides of the fixed frame are movably connected to the bottom outer wall of the movable frame. A positioning mechanism is provided on one side of the movable frame, the positioning mechanism including a positioning frame. The inner wall of one side of the positioning frame is rotatably connected to both ends of a first auxiliary roller via a rotating shaft. A movable roller frame and a fixed roller frame are provided inside the positioning frame. The inner walls of both the movable roller frame and the fixed roller frame are rotatably connected to both ends of a second auxiliary roller via a rotating shaft.

[0006] In a preferred embodiment, both sides of the belt conveyor structure are fixedly connected to one end of the limiting rod, the bottom of the frame of the belt conveyor structure is fixedly connected to the top of the fixed frame, the fixed frame has a hollow groove inside, and the top of the belt conveyor structure is movably connected to the bottom of the rubber pad.

[0007] In a preferred embodiment, movable slots are provided on the top of both sides of the hollow groove. The inner wall of the hollow groove is rotatably connected to the outer wall of one end of a bidirectional threaded ball screw via a bearing. The other end of the bidirectional threaded ball screw is fixedly connected to the output end of a self-locking geared motor via a coupling.

[0008] In a preferred embodiment, the outer walls of both ends of the bidirectional threaded ball screw are threadedly connected to the inner wall of the screw nut seat, the top of the screw nut seat is fixedly connected to the bottom of the movable frame, and the bottom outer wall of the movable frame is movably connected to the inner wall of the movable groove.

[0009] In a preferred embodiment, a limiting opening is provided inside the movable frame, and the inner wall of the limiting opening is movably connected to the outer wall of the limiting rod.

[0010] In a preferred embodiment, one side of the movable frame is fixedly connected to one side of the positioning frame, and the positioning frame has a groove inside, with a spring groove on the inner top wall of the groove.

[0011] In a preferred embodiment, the inner wall of the spring groove is fixedly connected to the top end of the connecting spring, the bottom end of the connecting spring is fixedly connected to the top end of the rubber block, and the outer wall of the rubber block is movably connected to the inner wall of the spring groove.

[0012] In a preferred embodiment, the bottom of the rubber block is fixedly connected to the top of the movable roller frame, and the bottom of the fixed roller frame is fixedly connected to the inner bottom wall of the groove.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. This utility model uses the rotation of a bidirectional threaded ball screw to drive the screw nut seat to move, which in turn drives the moving frame to move through the limit rod, thereby driving the positioning frame and the first auxiliary roller to move. The movement of the positioning frame and the first auxiliary roller facilitates the guidance and positioning of foam boards of different widths.

[0015] 2. This utility model facilitates the limiting of both sides of the foam board by setting up a positioning frame. At the same time, the contact between the first auxiliary roller and both sides of the foam board reduces the friction during positioning and guiding, which facilitates the positioning and transmission of the foam board and reduces the phenomenon of foam board deviation.

[0016] 3. This utility model, through the setting of grooves, movable roller frame and fixed roller frame, and movable roller frame connected by rubber block, facilitates the guidance of thin foam boards of different thicknesses. Through the downward pressing operation of movable roller frame and the rotation of second auxiliary roller, the phenomenon of foam board breakage caused by directly clamping the two sides of thin foam board is avoided. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of a cutting positioning mechanism for a foam strip cutting machine provided by this utility model;

[0018] Figure 2 A schematic diagram of a cutting machine mechanism for a foam strip cutting machine provided by this utility model;

[0019] Figure 3 A partial sectional view of the drive mechanism of a cutting positioning mechanism for a foam strip cutting machine provided by this utility model;

[0020] Figure 4 A cross-sectional view of the positioning mechanism of a foam strip cutting positioning mechanism provided by this utility model;

[0021] Figure 5 A schematic diagram of the moving roller frame of a cutting positioning mechanism for a foam strip cutting machine provided by this utility model.

[0022] Legend:

[0023] 1. Cutting machine mechanism; 101. Belt conveyor structure; 102. Heating wire cutting structure; 103. Limiting rod; 104. Rubber pad; 2. Drive mechanism; 201. Fixed frame; 202. Hollow groove; 203. Moving groove; 204. Bidirectional threaded ball screw; 205. Self-locking geared motor; 206. Screw nut seat; 207. Moving frame; 208. Limiting port; 3. Positioning mechanism; 301. Positioning frame; 302. First auxiliary roller; 303. Groove; 304. Spring groove; 305. Connecting spring; 306. Rubber block; 307. Moving roller frame; 308. Fixed roller frame; 309. Second auxiliary roller. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 This utility model provides a technical solution comprising: a cutting machine mechanism 1, the cutting machine mechanism 1 including a belt conveyor structure 101, the top of the belt conveyor structure 101 being fixedly connected to the bottom of the frame of the heating wire cutting structure 102, a driving mechanism 2 being provided at the bottom of the frame of the belt conveyor structure 101, the driving mechanism 2 including a fixed frame 201, the top of both sides of the fixed frame 201 being movably connected to the bottom outer wall of the movable frame 207, a positioning mechanism 3 being provided on one side of the movable frame 207, the positioning mechanism 3 including a positioning frame 301, the inner wall of one side of the positioning frame 301 being rotatably connected to both ends of the first auxiliary roller 302 via a rotating shaft, the interior of the positioning frame 301 being provided with a movable roller frame 307 and a fixed roller frame 308, the inner walls of the movable roller frame 307 and the fixed roller frame 308 being rotatably connected to both ends of the second auxiliary roller 309 via a rotating shaft.

[0026] In one embodiment, both sides of the belt conveyor structure 101 are fixedly connected to one end of the limiting rod 103. The bottom of the frame of the belt conveyor structure 101 is fixedly connected to the top of the fixed frame 201. A hollow groove 202 is provided inside the fixed frame 201. The top of the belt conveyor structure 101 is movably connected to the bottom of the rubber pad 104. Movable grooves 203 are provided on the top of both sides of the hollow groove 202. The inner wall of the hollow groove 202 is rotatably connected to the outer wall of one end of the bidirectional threaded ball screw 204 through a bearing. The other end of the bidirectional threaded ball screw 204 is fixedly connected to the output end of the self-locking geared motor 205 via a coupling. The outer walls of both ends of the bidirectional threaded ball screw 204 are threadedly connected to the inner wall of the screw nut seat 206. The top of the screw nut seat 206 is fixedly connected to the bottom of the movable frame 207. The bottom outer wall of the movable frame 207 is movably connected to the inner wall of the movable groove 203. A limit port 208 is opened inside the movable frame 207. The inner wall of the limit port 208 is movably connected to the outer wall of the limit rod 103.

[0027] Specifically: The self-locking geared motor 205 is started to drive the bidirectional threaded ball screw 204 to rotate. The rotation of the bidirectional threaded ball screw 204 drives the two sets of screw nut seats 206 to move relative to each other, thereby driving the moving frame 207 to move inside the moving groove 203. At the same time, the limiting port 208 moves along the outer wall of the limiting rod 103. The movement of the moving frame 207 drives the positioning frame 301 to move towards both sides of the foam board. At the same time, the outer wall of the first auxiliary roller 302 contacts the two sides of the foam board. The belt conveyor structure 101 is started so that the foam board moves through the guidance and positioning of the positioning frame 301 and the first auxiliary roller 302. The positioning frame 301 facilitates the limiting of the two sides of the foam board. At the same time, the contact between the first auxiliary roller 302 and the two sides of the foam board reduces the friction during positioning and guiding, which facilitates the positioning and transmission of the foam board and reduces the phenomenon of foam board deviation.

[0028] In one embodiment, one side of the movable frame 207 is fixedly connected to one side of the positioning frame 301. The positioning frame 301 has a groove 303 inside, and the inner top wall of the groove 303 has a spring groove 304. The inner wall of the spring groove 304 is fixedly connected to the top of the connecting spring 305. The bottom end of the connecting spring 305 is fixedly connected to the top of the rubber block 306. The outer wall of the rubber block 306 is movably connected to the inner wall of the spring groove 304. The bottom of the rubber block 306 is fixedly connected to the top of the movable roller frame 307. The bottom of the fixed roller frame 308 is fixedly connected to the inner bottom wall of the groove 303.

[0029] Specifically: When the foam board is thin, the movable frame 207, through the setting of the bidirectional threaded ball screw 204 and the screw nut seat 206, moves to a point where the inner wall of the groove 303 will not squeeze the sides of the thin foam board. The thin foam board is then placed inside the groove 303, so that the thin foam board is located between the movable roller frame 307 and the fixed roller frame 308. The reset of the connecting spring 305 drives the rubber block 306 to move along the inner wall of the spring groove 304, thereby driving the movable roller frame 307 to move downward. At the same time, the second auxiliary roller 309 contacts the thin foam board, and a rubber pad 104 is placed on the top of the belt conveyor structure 101. The rubber pad 104 is used to compensate for the distance difference between the thin foam board and the belt conveyor structure 101, so that the rubber pad 104 moves when the belt conveyor structure 101 is working. The rubber pad 104 drives the foam board to be transported by friction with the bottom of the foam board. Through the setting of the groove 303, the movable roller frame 307 and the fixed roller frame 308, the movable roller frame 307 connected by the rubber block 306 facilitates the guidance of thin foam boards of different thicknesses. Through the downward pressing operation of the movable roller frame 307 and the rotation of the second auxiliary roller 309, the phenomenon of foam board breaking due to direct clamping on both sides of the thin foam board is avoided.

[0030] It should be noted that the self-locking geared motor 205 is existing technology. The self-locking geared motor 205 is a speed reduction transmission device that integrates a self-locking function. Its core feature is to achieve "reverse self-locking" through a mechanical structure - that is, the output shaft can only be driven to rotate by the input shaft, and the load reaction force of the output shaft cannot make the input shaft rotate in the opposite direction. Those skilled in the art can set it according to actual needs, which will not be elaborated here.

[0031] It should be noted that the belt conveyor structure 101 is existing technology. The belt conveyor structure 101 is a transmission device that achieves continuous material conveying by relying on the friction between the belt and the roller. Its core components include a drive roller, a driven roller, a conveyor belt, a tensioning component, and a frame. The working principle is that the drive component drives the drive roller to rotate, and the roller pulls the conveyor belt to rotate in a cycle through friction. The material is placed on the belt and moves synchronously with the belt. The tensioning component can adjust the belt tension to avoid slippage during the conveying process. Those skilled in the art can set it according to actual needs, which will not be described in detail here.

[0032] It should be noted that the heating wire cutting structure 102 is existing technology. The heating wire cutting structure 102 is an execution device that uses an electric heating wire to heat up and achieve thermal melting and cutting of foam materials. Its core components include an electric heating wire, an electrode seat, and a tension adjustment component. The working principle is that the electrode seat provides a stable current to the heating wire. After the heating wire is energized, it quickly heats up to the melting temperature of the foam material. When the foam strip comes into contact with the high-temperature heating wire, the foam at the contact point melts and separates instantly, forming a flat cut. The tension adjustment component can keep the heating wire taut and prevent the cut from becoming skewed due to high temperature relaxation. Those skilled in the art can set it according to actual needs, which will not be elaborated here.

[0033] It should be noted that the fixed connection in this application can be fixed by welding or by screws. Those skilled in the art can set it according to actual needs, which will not be elaborated here.

[0034] Working principle: First, the foam board to be cut is placed above the belt conveyor structure 101. The self-locking reduction motor 205 is started, driving the bidirectional threaded ball screw 204 to rotate. The rotation of the bidirectional threaded ball screw 204 causes the two sets of screw nut seats 206 to move relative to each other, thereby driving the moving frame 207 to move inside the moving groove 203. Simultaneously, the limiting port 208 moves along the outer wall of the limiting rod 103. The movement of the moving frame 207 causes the positioning frame 301 to move towards both sides of the foam board, simultaneously causing the outer wall of the first auxiliary roller 302 to contact the sides of the foam board. The belt conveyor structure 101 is started, allowing the foam board to move under the guidance and positioning of the positioning frame 301 and the first auxiliary roller 302. Then, the cutting operation is performed by the activated electric heating wire cutting structure 102. When the foam board is thin, the moving frame 207... 7. By setting the bidirectional threaded ball screw 204 and the screw nut seat 206, the thin foam board is moved to a point where the inner wall of the groove 303 will not squeeze the sides of the thin foam board. The thin foam board is placed inside the groove 303, so that the thin foam board is located between the moving roller frame 307 and the fixed roller frame 308. The reset of the connecting spring 305 drives the rubber block 306 to move along the inner wall of the spring groove 304, thereby driving the moving roller frame 307 to move downward. At the same time, the second auxiliary roller 309 contacts the thin foam board. Meanwhile, a rubber pad 104 is placed on the top of the belt conveyor structure 101 to make up for the distance difference between the thin foam board and the belt conveyor structure 101. When the belt conveyor structure 101 is working, it drives the rubber pad 104 to move. The rubber pad 104 drives the foam board to be transported by friction with the bottom of the foam board.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A cutting and positioning mechanism for a foam strip cutting machine, characterized in that, include: The cutting machine mechanism (1) includes a belt conveyor structure (101). The top of the belt conveyor structure (101) is fixedly connected to the bottom of the frame of the electric heating wire cutting structure (102). A driving mechanism (2) is provided at the bottom of the frame of the belt conveyor structure (101). The driving mechanism (2) includes a fixed frame (201). The top of both sides of the fixed frame (201) is movably connected to the bottom outer wall of the movable frame (207). A positioning mechanism (3) is provided on one side of the movable frame (207). The positioning mechanism (3) includes a positioning frame (301). The inner wall of one side of the positioning frame (301) is rotatably connected to both ends of the first auxiliary roller (302) through a rotating shaft. The interior of the positioning frame (301) is provided with a movable roller frame (307) and a fixed roller frame (308). The inner walls of the movable roller frame (307) and the fixed roller frame (308) are rotatably connected to both ends of the second auxiliary roller (309) through a rotating shaft.

2. The cutting and positioning mechanism for a foam strip cutting machine according to claim 1, characterized in that: Both sides of the belt conveyor structure (101) are fixedly connected to one end of the limiting rod (103). The bottom of the frame of the belt conveyor structure (101) is fixedly connected to the top of the fixed frame (201). The fixed frame (201) has a hollow groove (202) inside. The top of the belt conveyor structure (101) is movably connected to the bottom of the rubber pad (104).

3. The cutting and positioning mechanism for a foam strip cutting machine according to claim 2, characterized in that: The hollow groove (202) has movable grooves (203) on both sides of the top. The inner wall of the hollow groove (202) is rotatably connected to the outer wall of one end of the bidirectional threaded ball screw (204) through a bearing. The other end of the bidirectional threaded ball screw (204) is fixedly connected to the output end of the self-locking geared motor (205) through a coupling.

4. The cutting positioning mechanism for a foam strip cutting machine according to claim 3, characterized in that: The outer walls of both ends of the bidirectional threaded ball screw (204) are threadedly connected to the inner wall of the screw nut seat (206). The top of the screw nut seat (206) is fixedly connected to the bottom of the movable frame (207). The outer wall of the bottom of the movable frame (207) is movably connected to the inner wall of the movable groove (203).

5. The cutting and positioning mechanism for a foam strip cutting machine according to claim 4, characterized in that: The movable frame (207) has a limiting port (208) inside, and the inner wall of the limiting port (208) is movably connected to the outer wall of the limiting rod (103).

6. The cutting positioning mechanism for a foam strip cutting machine according to claim 5, characterized in that: One side of the movable frame (207) is fixedly connected to one side of the positioning frame (301). The positioning frame (301) has a groove (303) inside, and a spring groove (304) is provided on the inner top wall of the groove (303).

7. The cutting and positioning mechanism for a foam strip cutting machine according to claim 6, characterized in that: The inner wall of the spring groove (304) is fixedly connected to the top end of the connecting spring (305), the bottom end of the connecting spring (305) is fixedly connected to the top end of the rubber block (306), and the outer wall of the rubber block (306) is movably connected to the inner wall of the spring groove (304).

8. The cutting and positioning mechanism for a foam strip cutting machine according to claim 7, characterized in that: The bottom of the rubber block (306) is fixedly connected to the top of the movable roller frame (307), and the bottom of the fixed roller frame (308) is fixedly connected to the inner bottom wall of the groove (303).

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