Paper wrapping machine for packaging special-shaped products

Abstract

The utility model provides a paper wrapping machine for packaging special-shaped products. The paper wrapping machine comprises a base, a conveying belt fixedly installed on the left side of the upper end of the base, a workbench fixedly installed in the middle of the upper end of the base, a paper rolling frame fixedly installed on the right side of the upper end of the base, and a paper cutting frame fixedly installed below the workbench. By arranging the clamp, the ejector block, the motor, the rotating rod, the rotating wheel, the connecting rod, the paper cutter and other structures, the clamp is matched with the ejector block, products can be accurately grabbed and stably transferred to a packaging station, the motor drives the rotating rod and the rotating wheel, circular motion is converted into reciprocating cutting action of the paper cutter through gear transmission and the eccentric connecting rod, fixed-length cutting of packaging paper is ensured, and production efficiency is improved. The automatic packaging machine is simple in structure, stable in action and adjustable in frequency, packaging adaptability of irregular products is improved, electric control complexity is reduced through reliability of a mechanical structure, efficient, accurate and stable automatic packaging is achieved, production efficiency is remarkably improved, and manual intervention is reduced.

Description

Technical Field

[0001] This utility model relates to the field of product packaging technology, and more specifically, to a paper wrapping machine for packaging irregularly shaped products. Background Technology

[0002] In today's highly developed commodity economy, the importance of product packaging is increasingly prominent. Paper wrapping, as a common and basic packaging method, plays multiple crucial roles. During the long transportation, storage, and sales process from the production site to the consumer, products inevitably suffer from external forces such as collisions, friction, and compression. Products sensitive to physical damage, such as electronic products and glassware, are highly susceptible to damage, scratches, or deformation without effective protection, leading to a loss of product value. Therefore, providing physical cushioning protection through paper wrapping has become a key means of ensuring product quality and integrity.

[0003] However, existing paper wrapping machines have the following problems when in use:

[0004] Traditional paper wrapping machines are typically only capable of standardized packaging for products with regular geometric shapes. They cannot adapt to irregularly shaped products, leading to problems such as paper wrinkles, incomplete wrapping, and positioning deviations during the packaging process. The low level of automation in the packaging process necessitates frequent manual intervention and adjustments, making it difficult to balance production efficiency and consistency.

[0005] This invention can precisely position and transfer products using clips, top blocks, etc., and use motors, paper cutters, etc. to cut the packaging paper. Then, through the linkage of packaging cylinders, multi-directional wrapping is achieved, improving packaging efficiency and precision, reducing manual intervention, and is suitable for packaging scenarios of diverse irregular-shaped products. Utility Model Content

[0006] The present invention aims to solve the technical problems mentioned in the background art and provide a paper wrapping machine for packaging irregularly shaped products.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a paper wrapping machine for packaging irregularly shaped products, comprising: a base, a conveyor belt fixedly installed on the upper left side of the base, a worktable fixedly installed in the middle of the upper part of the base, a paper roll holder fixedly installed on the upper right side of the base, a paper cutter fixedly installed below the worktable, a fixed frame fixedly installed in front of the conveyor belt, a conveyor frame fixedly installed in the middle of the upper part of the worktable, a paper feeder fixedly installed at the bottom of the worktable, a channel for accommodating paper passage being opened between the upper end of the paper feeder and the worktable, conveying ports being opened at the bottom of the paper feeder and the bottom of the conveyor frame, and a lifting frame fixedly installed below the paper feeder.

[0008] A further preferred embodiment: a cylinder is fixedly installed on the right end of the fixed frame, a slide plate is slidably connected to the upper end of the fixed frame, a cylinder is fixedly installed on the upper end of the slide plate, a clamp is fixedly installed on the output end of the cylinder, and the clamp is matched with the conveyor belt and the lifting frame.

[0009] A further preferred embodiment: a slider is slidably connected below the lifting frame, and a support rod is fixedly installed at the upper end of the slider, with the support rod embedded inside the lifting frame.

[0010] A further preferred embodiment: a slide rail is fixedly installed on the right end of the lifting frame, the slider is slidably connected to the slide rail, a top block is fixedly installed on the upper end of the support rod, and the top block is matched with the conveying port.

[0011] A further preferred embodiment: a cylinder is fixedly installed at the rear end of the conveyor frame, and packaging cylinders are fixedly installed at both ends of the conveyor frame, with packaging clamps fixedly installed at the output ends of the packaging cylinders.

[0012] A further preferred embodiment: an auxiliary roller one is fixedly installed behind the paper roll holder, and an auxiliary roller two and an auxiliary roller three are fixedly installed below the auxiliary roller one, with the auxiliary roller three located in front of the auxiliary roller two.

[0013] A further preferred embodiment: a motor is fixedly installed inside the paper cutter, and a main gear is fixedly installed at the output end of the right end of the motor, and the main gear is rotatably connected to the inside of the paper cutter.

[0014] A further preferred embodiment: a rotating rod is rotatably installed inside the paper cutter, the rotating rod is located in front of the motor, and a secondary gear is fixedly installed at the right end of the rotating rod, the secondary gear meshing with the main gear.

[0015] A further preferred embodiment: the paper cutter is rotatably connected to both ends of the paper cutter, and the rotatable wheels are fixedly connected to the left and right ends of the rotating rod, respectively.

[0016] A further preferred embodiment: a connecting rod is fixedly installed on the outer end of each rotating wheel, a paper cutter is embedded in the upper end of the paper cutter, the left and right ends of the paper cutter are fixedly connected to the inner side of the connecting rod, and the rotating wheel and the connecting rod are connected by an eccentric circle.

[0017] Beneficial effects:

[0018] 1. The product is equipped with a slide plate, cylinder 2, clamps, and a top block. Cylinder 2 drives the clamps to move up and down and clamp the product, ensuring that the product is fixed in position during the transfer process and preventing it from shifting or falling. The clamps and the top block are designed to work together. When the product is transferred to the top block, the clamps release the product, and the top block can lift the product from below in time, so that it comes into contact with the packaging paper and completes the wrapping. This improves the accuracy and efficiency of packaging, while also being compact and reliable in operation.

[0019] 2. Equipped with a packaging cylinder, the output end of which is fixedly fitted with a packaging clamp. This clamping force and angle can be flexibly adjusted according to the shape and size of the product, ensuring that the packaging paper fits tightly against the product surface. It is especially suitable for handling irregularly shaped products, ensuring the integrity and aesthetics of the packaging. The packaging cylinder operates quickly and stably, effectively improving packaging efficiency and meeting the high-speed packaging requirements of automated production lines. In addition, the stroke and pressure of the packaging cylinder can be precisely adjusted through the control system to adapt to different types of packaging materials and product specifications, enhancing the versatility and adaptability of the equipment, reducing manual intervention, and lowering labor intensity.

[0020] 3. Equipped with a motor, main gear, secondary gear, rotating wheel, and connecting rod, the motor provides power to drive the main gear to rotate. The secondary gear meshes and transmits the rotational speed synchronously, ensuring a stable and controllable movement frequency of the paper cutter. The eccentric connection design of the rotating wheel and connecting rod precisely converts the circular motion into the reciprocating linear motion of the paper cutter. Periodic cutting can be achieved without complex electrical control, resulting in a simple and reliable structure. This transmission chain ensures the accuracy of power transmission through gear meshing. Combined with the mechanical characteristics of the eccentric mechanism, the stroke and frequency of the paper cutter can be flexibly adjusted by the motor speed or gear ratio to adapt to different packaging paper thicknesses and cutting length requirements. This improves the equipment's adaptability to diverse packaging scenarios, reduces maintenance costs, and ensures the continuity and efficiency of the automated packaging process.

[0021] 4. In summary, this type of paper wrapping machine for irregularly shaped products, equipped with clamps, a top block, a motor, a rotating rod, a rotating wheel, a connecting rod, and a paper cutter, allows the clamps, in conjunction with the top block, to accurately grasp the product and stably transfer it to the packaging station. The motor drives the rotating rod and rotating wheel, which, through gear transmission and an eccentric connecting rod, convert the circular motion into the reciprocating cutting motion of the paper cutter. This ensures that the packaging paper is cut to a fixed length, with stable operation and adjustable frequency. This not only improves the adaptability to packaging irregular products but also reduces the complexity of electrical control through the reliability of the mechanical structure, achieving efficient, precise, and stable automated packaging, significantly improving production efficiency and reducing manual intervention. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the transmission belt structure of this utility model.

[0024] Figure 3 This is a schematic diagram of the product lifting frame structure of this utility model.

[0025] Figure 4 This is a schematic diagram of the paper roll machine frame structure of this utility model.

[0026] Figure 5 This is a schematic diagram of the paper cutter structure of this utility model.

[0027] Figure 1-5 Components: 1. Base; 2. Conveyor belt; 201. Fixing frame; 202. Cylinder 1; 203. Slide plate; 204. Cylinder 2; 205. Clamp; 3. Workbench; 301. Paper feeder; 302. Conveying port; 303. Lifting frame; 304. Slider; 305. Slide rail; 306. Support rod; 307. Top block; 308. Conveying frame; 309. Cylinder 3; 310. Packaging cylinder; 4. Paper roll holder; 401. Auxiliary roller 1; 402. Auxiliary roller 2; 403. Auxiliary roller 3; 5. Paper cutter; 501. Motor; 502. Main gear; 503. Rotating rod; 504. Secondary gear; 505. Rotating wheel; 506. Connecting rod; 507. Paper cutter. Detailed Implementation

[0028] The following will refer to the appendix in the embodiments of this utility model. Figures 1-5 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0029] Please see Figure 1-5In this embodiment of the present invention, a paper wrapping machine for packaging irregularly shaped products includes: a base 1, a conveyor belt 2 fixedly installed on the upper left side of the base 1, a worktable 3 fixedly installed in the upper middle of the base 1, a paper roll holder 4 fixedly installed on the upper right side of the base 1, a paper cutter 5 fixedly installed below the worktable 3, a fixing frame 201 fixedly installed in front of the conveyor belt 2, a conveyor frame 308 fixedly installed in the upper middle of the worktable 3, a paper feeding frame 301 fixedly installed at the bottom of the worktable 3, a channel for accommodating paper passage being opened between the upper end of the paper feeding frame 301 and the worktable 3, a conveying port 302 being opened at the bottom of both the paper feeding frame 301 and the conveyor frame 308, a lifting frame 303 fixedly installed below the paper feeding frame 301, and a cylinder fixedly installed at the right end of the fixing frame 201. 202. A sliding plate 203 is slidably connected to the upper end of the fixed frame 201. A cylinder 204 is fixedly installed on the upper end of the sliding plate 203. A clamp 205 is fixedly installed on the output end of the cylinder 204. The clamp 205 is matched with the conveyor belt 2 and the lifting frame 303. A slider 304 is slidably connected to the lower part of the lifting frame 303. A support rod 306 is fixedly installed on the upper end of the slider 304. The support rod 306 is embedded inside the lifting frame 303. A slide rail 305 is fixedly installed on the right end of the lifting frame 303. The slider 304 is slidably connected to the slide rail 305. A top block 307 is fixedly installed on the upper end of the support rod 306. The top block 307 is matched with the conveying port 302. A cylinder 309 is fixedly installed at the rear end of the conveyor frame 308. Both ends of the conveyor frame 308 are fixedly installed with... The packaging cylinder 310 is equipped with packaging clamps fixedly installed at its output end. Irregularly shaped products are placed on the conveyor belt 2 and move forward with it. Rolled packaging paper is installed on the paper roll holder 4. The packaging paper is conveyed forward through the channel between the paper feeder 301 and the worktable 3, reaching below the worktable and above the conveyor port 302 at the bottom of the paper feeder 301. At this time, the paper cutter 5 cuts the packaging paper, causing it to separate and remain on the conveyor port 302 at the bottom of the paper feeder 301. The slide plate 203 is located on the upper left side of the fixed frame 201. At this time, the clamp 205 is in the open state. The slider 304 below the lifting frame 303 is in the initial position of the slide rail 305. The support rod 306 and the top block 307 are not raised and do not obstruct the conveyor port 302. Conveyor belt 2 transports the irregularly shaped product forward. When it reaches the rear of the fixed frame 201, cylinder 204 drives clamp 205 to extend towards conveyor belt 2 and clamp the product, temporarily fixing its position. Then, cylinder 202 drives slide plate 203 to move to the right, causing clamp 205 to hold the product and move it to the lifting frame 303, positioning the product above the top block 307. At this time, slider 304 below the lifting frame 303 slides along slide rail 305, adjusting the position of top block 307 to below the product. Then, clamp 205 releases the product, allowing it to fall onto top block 307. Clamp 205 then retracts and resets to the left. At this time, support rod 306 pushes top block 307 upward, lifting the irregularly shaped product so that it contacts the packaging paper at the bottom of paper feeder 301 and lifts it up.Then, the product arrives at the upper end of the worktable 3 via the conveyor port 302 of the conveyor frame 308. At this time, the packaging cylinder 310 performs packaging actions on both ends of the product, ensuring that the product is completely wrapped in the packaging paper. Then, cylinder 309 pushes the packaged product forward, and it is then conveyed forward through the conveyor frame 308. After the conveying is completed, the top block 307 descends and resets, entering the next round of packaging cycle.

[0030] In this embodiment of the utility model, an auxiliary roller 401 is fixedly installed behind the paper roll holder 4. An auxiliary roller 402 and an auxiliary roller 403 are fixedly installed below the auxiliary roller 401. The auxiliary roller 403 is located in front of the auxiliary roller 402. A paper roll is installed on the paper roll holder 4. A packaging paper roll is rotatably installed on the paper roll. Then, one end of the packaging paper roll is pulled out so that it passes around the auxiliary roller 401 and is pulled down from the rear end of the auxiliary roller 401 to the rear end of the auxiliary roller 402. It passes under and extends to the top of the auxiliary roller 403, and then enters the paper feeder 301.

[0031] In this embodiment of the utility model, a motor 501 is fixedly installed inside the paper cutter 5. A main gear 502 is fixedly installed at the output end of the right end of the motor 501. The main gear 502 is rotatably connected to the inside of the paper cutter 5. A rotating rod 503 is rotatably installed inside the paper cutter 5. The rotating rod 503 is located in front of the motor 501. A secondary gear 504 is fixedly installed at the right end of the rotating rod 503. The secondary gear 504 meshes with the main gear 502. Rotating wheels 505 are rotatably connected to both the left and right ends of the paper cutter 5. The rotating wheel 505 is fixedly connected to the left and right ends of the rotating rod 503, and a connecting rod 506 is fixedly installed on the outer end of each rotating wheel 505. A paper cutter 507 is embedded in the upper end of the paper cutter 5, and the left and right ends of the paper cutter 507 are fixedly connected to the inner side of the connecting rod 506. The rotating wheel 505 and the connecting rod 506 are connected by an eccentric circle. When the paper roll 4 feeds the packaging paper into the paper feeder 301, the motor 501 starts to work and drives the main gear. When gear 502 rotates, the main gear 502 meshes with the secondary gear 504, and the transmission ratio is 1:1. Therefore, the secondary gear 504 also rotates. Since the secondary gear 504 is fixedly connected to the rotating rod 503, the rotating rod 503 also rotates when the secondary gear 504 rotates. Since both ends of the rotating rod 503 are fixedly connected to the rotating wheel 505, the rotating wheel 505 also starts to rotate, thereby driving the connecting rod 506 to move. Since the connecting rod 506 and the rotating wheel 505 are connected by an eccentric circle, and the connecting rod 506 is fixedly connected to the paper cutter 507, the connecting rod 506 converts the circular motion into up-and-down reciprocating motion, causing the paper cutter 507 to perform up-and-down reciprocating cutting motion to cut the packaging paper. For each rotation of the rotating wheel 505, the paper cutter 507 completes one downward and upward cutting action. When dealing with different product packaging, the cutting frequency can be controlled by adjusting the speed of the motor 501 to adapt to different packaging speed requirements.

[0032] Working principle: Conveyor belt 2 starts, transporting irregularly shaped products to the material handling position behind the fixed frame 201. Cylinder 204 extends, driving clamp 205 to the product position and closing to clamp the product. Cylinder 202 extends, pushing slide plate 203 to slide to the right, moving the product above top block 307. At this time, the packaging paper is pulled from the roll paper holder 4 to the conveying port 302 at the bottom of the paper feeding frame 301. The conveying length is preset by the control system according to the product size. When the packaging paper is in place, motor 501 starts, driving main gear 502 to rotate. 502 drives the secondary gear 504 (transmission ratio 1:1) to rotate synchronously, causing the rotating rod 503 to rotate. The rotating wheels 505 at both ends of the rotating rod 503 rotate accordingly. The circular motion is converted into the reciprocating motion of the paper cutter 507 through the connecting rod 506 connected by an eccentric circle. The paper cutter 507 descends to cut the packaging paper, and after completion, it rises to reset. The motor 501 stops. The front end of the cut packaging paper remains on the conveyor 302, while the rear end remains connected to the paper roll holder 4, ready for the next conveying. The slider 304 slides along the slide rail 305, and the top block 307 is adjusted to be directly below the product. The product comes into contact with the packaging paper, and then the clamp 205 opens, releasing the product onto the top block 307. The slide plate 203 slides to the left to its initial position, the clamp 205 resets, and the support rod 306 rises, lifting the product through the conveyor 302 so that it contacts the packaging paper and is lifted above the worktable 3. At this time, the packaging cylinders 310 on both sides of the conveyor frame 308 move synchronously, driving the packaging clamp to retract inward, folding the packaging paper along the side of the product to wrap it. Cylinder 309 extends, pushing the product forward within the conveyor frame 308. Then, cylinder 309 retracts, lifting the product. Block 307 descends, slider 304 returns to the initial position of slide rail 305, top block 307 completely retracts from the area of ​​conveyor 302, paper feeder 301 again conveys packaging paper to above conveyor 302, waiting for the next product to arrive, the system returns to the initial state, the speed of motor 501 is adjusted by frequency converter to control the up and down reciprocating frequency of paper cutter 507 to adapt to different packaging speed requirements, by changing the rotating wheel 505 with different eccentricity or adjusting the connection position of connecting rod 506 to change the stroke of paper cutter 507 to adapt to the cutting requirements of packaging paper of different thicknesses.

Claims

1. A machine for packaging a profiled product in a wrapper, comprising: The base (1) is provided with a conveyor belt (2) fixedly installed on the left side of the upper end of the base (1), a workbench (3) fixedly installed on the middle of the upper end of the base (1), and a paper roll frame (4) fixedly installed on the right side of the upper end of the base (1), and a paper cutting frame (5) fixedly installed below the workbench (3), characterized in that: a fixed frame (201) is fixedly installed in front of the conveyor belt (2), a conveying frame (308) is fixedly installed on the middle of the upper end of the workbench (3), a paper feeding frame (301) is fixedly installed on the bottom of the workbench (3), a passage for accommodating paper is formed between the upper end of the paper feeding frame (301) and the workbench (3), conveying openings (302) are formed in the bottom of the paper feeding frame (301) and the bottom of the conveying frame (308), and a jacking frame (303) is fixedly installed below the paper feeding frame (301).

2. A machine for packaging a profiled product in a wrapper according to claim 1, characterized in that: A cylinder one (202) is fixedly installed on the right end of the fixed frame (201), a sliding plate (203) is slidingly connected to the upper end of the fixed frame (201), a cylinder two (204) is fixedly installed on the upper end of the sliding plate (203), a clamp (205) is fixedly installed on the output end of the cylinder two (204), and the clamp (205) is arranged in cooperation with the conveyor belt (2) and the jacking frame (303).

3. A machine for packaging a profiled product in a wrapper according to claim 2, characterized in that: A sliding block (304) is slidingly connected below the jacking frame (303), a supporting rod (306) is fixedly installed on the upper end of the sliding block (304), and the supporting rod (306) is arranged inside the jacking frame (303).

4. A machine for packaging a profiled product in a wrapper according to claim 3, characterized in that: A sliding rail (305) is fixedly installed on the right end of the jacking frame (303), the sliding block (304) is slidingly connected with the sliding rail (305), a top block (307) is fixedly installed on the upper end of the supporting rod (306), and the top block (307) is arranged in cooperation with the conveying opening (302).

5. A machine for packaging a profiled product according to claim 1, characterized in that: A cylinder three (309) is fixedly installed on the rear end of the conveying frame (308), packaging cylinders (310) are fixedly installed on the left and right ends of the conveying frame (308), and packaging clamps are fixedly installed on the output ends of the packaging cylinders (310).

6. A machine for packaging a profiled product according to claim 1, characterized in that: An auxiliary roller one (401) is fixedly installed behind the paper roll frame (4), an auxiliary roller two (402) and an auxiliary roller three (403) are fixedly installed below the auxiliary roller one (401), and the auxiliary roller three (403) is located in front of the auxiliary roller two (402).

7. A machine for packaging a profiled product according to claim 1, characterized in that: A motor (501) is fixedly installed inside the paper cutting frame (5), a main gear (502) is fixedly installed on the output end of the right end of the motor (501), and the main gear (502) is rotatably connected inside the paper cutting frame (5).

8. A machine for packaging a profiled product in a wrapper according to claim 7, characterized in that: A rotating rod (503) is rotatably installed inside the paper cutting frame (5), the rotating rod (503) is located on the front side of the motor (501), a sub-gear (504) is fixedly installed on the right end of the rotating rod (503), and the sub-gear (504) is engaged with the main gear (502).

9. A machine for packaging shaped products according to claim 8, characterized in that: Rotating wheels (505) are rotatably connected to the left and right ends of the paper cutting frame (5), and the rotating wheels (505) are respectively fixedly connected to the left and right ends of the rotating rod (503).

10. A machine for packaging shaped products according to claim 9, characterized in that: The outer end of the rotating wheel (505) is fixedly installed with a connecting rod (506), the upper end of the paper cutting frame (5) is embeddedly installed with a paper cutting knife (507), the left and right ends of the paper cutting knife (507) are fixedly connected with the inner side of the connecting rod (506), and the rotating wheel (505) and the connecting rod (506) are connected in an eccentric circle mode.

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