A slitting device for food packaging bag production

Abstract

The utility model relates to food packaging bag production equipment technical field discloses a kind of slitting equipment for food packaging bag production, including slitting table.The utility model can drive the auxiliary connecting rod connected thereon to move downward by positioning plate.When auxiliary connecting rod moves downward, auxiliary cylinder synchronously moves downward, until the top of food packaging bag surface, such as composite film, plastic film etc., is closely contacted with the surface of slitting table, drives auxiliary cylinder contacted with it to roll synchronously outward.The rolling of auxiliary cylinder drives auxiliary connecting rod to rotate around the inner wall of positioning plate, when guiding block fixed in the left side of auxiliary connecting rod slides along the guide slot of the inner wall of positioning plate, by the cooperation of guiding block and guide slot, the rotation track of auxiliary connecting rod is limited, avoid its rotation deviation, ensure that auxiliary cylinder always rolls on the surface of base material, two reset steel wires fixed in the end of auxiliary connecting rod are wound on the surface of auxiliary connecting rod during the rotation of auxiliary connecting rod.

Description

Technical Field

[0001] This utility model relates to the technical field of food packaging bag production equipment, and in particular to a slitting device for food packaging bag production. Background Technology

[0002] As the core carrier for food storage, transportation, and sales, the production quality of food packaging bags directly affects food preservation and food safety. In the entire food packaging bag industry chain, the slitting process is a crucial link connecting substrate lamination and finished bag production. It is primarily responsible for precisely slitting wide-width substrates (such as polyethylene, polypropylene, and aluminum-plastic composite films) after printing and lamination into narrow rolls that meet bag-making specifications. With the food industry developing towards diversification and refinement, the market places higher demands on the dimensional accuracy, edge quality, and production efficiency of food packaging bags. Traditional slitting equipment is gradually becoming inadequate to meet industry needs, driving the research and development and upgrading of new slitting equipment.

[0003] Traditional slitting devices in the current technology mostly rely on separately set positioning devices to assist in the slitting operation. However, these devices can only limit the position of the food packaging bag substrate and cannot deal with unevenness problems such as wrinkles and bulges that may occur during the slitting process. As a result, it is difficult to guarantee the flatness of the product, which in turn affects the cutting accuracy and quality of subsequent slitting and increases the product defect rate. Summary of the Invention

[0004] The problem to be solved by this utility model is to provide a slitting device for the production of food packaging bags, which addresses the shortcomings of the prior art.

[0005] To solve the above problems, the present invention adopts the following solution: a slitting device for the production of food packaging bags, including a slitting table, an auxiliary component is provided on the surface of the slitting table, and a positioning component is provided on the top of the auxiliary component.

[0006] The auxiliary component includes a positioning plate with a T-shaped groove on its top. A T-shaped slider is slidably connected to the inner wall of the T-shaped groove. A tension spring is fixedly connected to the front of the T-shaped slider. The end of the tension spring away from the T-shaped slider is fixedly connected to the inner wall of the T-shaped groove. A reset wire is fixedly connected to the front of the T-shaped slider. The outer wall of the reset wire is slidably connected to the inner wall of the positioning plate. An auxiliary connecting rod is fixedly connected to the end of the reset wire away from the T-shaped slider. A guide block is fixedly connected to the left side of the auxiliary connecting rod. A guide groove is provided on the inner wall of the positioning plate. An auxiliary roller is rotatably connected to the outer wall of the auxiliary connecting rod.

[0007] As a further improvement to the above solution, the outer wall of the auxiliary connecting rod is rotatably connected to the inner wall of the positioning plate, and the outer wall of the guide block is slidably connected to the inner wall of the guide groove.

[0008] As a further improvement to the above solution, two positioning plates are provided, which are symmetrically arranged around the center of the cutting table; two T-shaped slides are provided, which are symmetrically arranged around the center of the positioning plates; two reset wires are provided; and two auxiliary connecting rods are provided.

[0009] With the above technical solution, two positioning plates symmetrically arranged around the center of the cutting table can drive the auxiliary connecting rods connected to them to move downwards. When the auxiliary connecting rods move downwards, the auxiliary rollers rotatably connected to their outer walls move downwards synchronously until they come into close contact with the top of the food packaging bag substrate, such as composite film or plastic film, on the surface of the cutting table, which will drive the auxiliary rollers in contact with them to roll outwards synchronously.

[0010] As a further improvement to the above solution, the positioning component includes a drive cylinder, the outer wall of which is fixedly connected to the inner wall of the cutting table, and a drive plate is fixedly connected to the output end of the drive cylinder, with a limit groove formed on the surface of the drive plate.

[0011] As a further improvement to the above solution, a driven slide rod is slidably connected to the inner wall of the limiting slide groove, and the bottom of the driven slide rod is fixedly connected to the top of the positioning plate.

[0012] As a further improvement to the above solution, a reset spring is fixedly connected to the top of the positioning plate, the top of the reset spring is fixedly connected to the bottom of the drive plate, a cutting tool is fixedly connected to the bottom of the drive plate, and an avoidance groove is provided on the surface of the cutting table.

[0013] As a further improvement to the above solution, two limiting slides are provided, and the two limiting slides are symmetrically arranged with the driving cylinder as the center. Two driven slides are provided, and two return springs are provided.

[0014] Through the above technical solution, the power source of the positioning component is a drive cylinder, whose outer wall is fixed to the inner wall of the cutting table to ensure structural stability during operation. When the equipment receives a cutting command, the drive cylinder starts, and its output end pushes or pulls the drive plate to move vertically. The drive plate, as the power transmission carrier, drives the cutting tool fixed at the bottom to move synchronously, preparing for subsequent cutting actions; on the other hand, it provides sliding guidance for the driven slide rod through two symmetrical limiting grooves on its surface.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes two positioning plates symmetrically arranged around the center of the cutting table, which drive the auxiliary connecting rods connected to them to move downwards. As the auxiliary connecting rods move downwards, the auxiliary rollers rotatably connected to their outer walls move downwards synchronously until they come into close contact with the top of the food packaging bag substrate, such as composite film or plastic film, on the surface of the cutting table. This causes the auxiliary rollers in contact with the substrate to roll outwards synchronously. The rolling of the auxiliary rollers drives the auxiliary connecting rods to rotate around the inner wall of the positioning plates. At this time, the guide block fixed to the left side of the auxiliary connecting rod slides along the guide groove opened on the inner wall of the positioning plate. Through the cooperation of the guide block and the guide groove, the rotation trajectory of the auxiliary connecting rod is restricted, preventing it from deviating and ensuring that the auxiliary rollers always roll in contact with the substrate surface. During the rotation of the auxiliary connecting rod, two reset steel wires fixed to its ends will wrap around the surface of the auxiliary connecting rod. The end of the reset steel wire away from the auxiliary connecting rod is fixedly connected to a T-shaped slider. The tension generated by the wrapping causes the T-shaped slider to slide along the T-shaped groove opened on the top of the positioning plate. When the T-shaped slider slides, it stretches the tension spring fixed on its front, storing elastic potential energy. When the positioning plate moves the auxiliary connecting rod and auxiliary roller upwards, the elastic potential energy of the tension spring drives the T-shaped slider to slide in the opposite direction, which in turn drives the auxiliary connecting rod to rotate in the opposite direction via the reset steel wire. This causes the auxiliary connecting rod to drive the guide block to slide along the guide groove. The design of the guide groove prevents the reset angle of the guide block and auxiliary connecting rod from changing, ensuring stable tension throughout the product cutting process and avoiding problems such as wrinkling and stretching deformation.

[0016] This invention utilizes a drive cylinder as the power source for the positioning component, with its outer wall fixed to the inner wall of the slitting table to ensure structural stability during operation. When the equipment receives a slitting command, the drive cylinder activates, its output pushing or pulling the drive plate vertically. The drive plate, acting as a power transmission carrier, simultaneously drives the bottom-fixed cutting blade to move synchronously, preparing for subsequent cutting actions. Furthermore, two symmetrical limiting grooves on its surface provide sliding guidance for the driven slide rods, enabling coordinated adjustment with the auxiliary components. The bottoms of the two driven slide rods are fixed to the top of the positioning plate, and their outer walls are slidably connected to the inner walls of the corresponding limiting grooves. When the drive plate moves, the limiting grooves, through sliding cooperation with the driven slide rods, drive the positioning plate to move synchronously: if the drive plate moves downwards, it pushes the positioning plate downwards via the driven slide rods, thereby causing the auxiliary roller in the auxiliary components to approach and adhere to the substrate surface of the slitting table; if the drive plate moves upwards, it pulls the positioning plate upwards via the driven slide rods, causing the auxiliary roller to detach from the substrate. Meanwhile, two return springs connected between the top of the positioning plate and the bottom of the drive plate stretch or compress accordingly during the movement of the positioning plate, storing elastic potential energy to provide power for subsequent reset. When the drive plate moves the positioning plate downwards, and the auxiliary components complete the tension adjustment and guiding positioning of the product, the drive plate continues to move downwards, causing the bottom of the positioning plate to fit against the top of the product, thus positioning the product. At the same time, the cutting blade at its bottom approaches the product. After the cutting blade contacts the substrate and completes the slitting action, the drive cylinder drives the drive plate to reset upwards. At this time, the elastic potential energy of the return springs is released, causing the auxiliary positioning plate to return to its original position. The clearance groove on the surface of the slitting table provides space for the cutting blade to move downwards during slitting, preventing damage caused by collision between the blade and the surface of the slitting table, while ensuring the cutting depth is reached and the cut is smooth. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the auxiliary component structure of this utility model.

[0019] Figure 3 This is a cross-sectional structural diagram of the auxiliary component of this utility model.

[0020] Figure 4 This is a schematic diagram of the resetting steel wire structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the guide groove structure of this utility model.

[0022] Figure 6 This is a schematic diagram of the positioning component structure of this utility model.

[0023] The components include: 1. Cutting table; 2. Auxiliary components; 201. Positioning plate; 202. T-shaped slide; 203. T-shaped slider; 204. Tension spring; 205. Reset wire; 206. Auxiliary connecting rod; 207. Guide block; 208. Guide groove; 209. Auxiliary roller; 3. Positioning components; 301. Drive cylinder; 302. Drive plate; 303. Limit slide; 304. Driven slide rod; 305. Reset spring; 306. Cutting tool; 307. Clearance groove. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. Example

[0025] Please combine Figure 1-6 This embodiment of a slitting device for producing food packaging bags includes a slitting table 1, an auxiliary component 2 on the surface of the slitting table 1, and a positioning component 3 on the top of the auxiliary component 2.

[0026] The auxiliary component 2 includes a positioning plate 201. A T-shaped groove 202 is provided on the top of the positioning plate 201. A T-shaped slider 203 is slidably connected to the inner wall of the T-shaped groove 202. A tension spring 204 is fixedly connected to the front of the T-shaped slider 203. The end of the tension spring 204 away from the T-shaped slider 203 is fixedly connected to the inner wall of the T-shaped groove 202. A reset wire 205 is fixedly connected to the front of the T-shaped slider 203. The outer wall of the reset wire 205 is slidably connected to the inner wall of the positioning plate 201. An auxiliary connecting rod 206 is fixedly connected to the end of the reset wire 205 away from the T-shaped slider 203. A guide block 207 is fixedly connected to the left side of the auxiliary connecting rod 206. A guide groove 208 is provided on the inner wall of the positioning plate 201. An auxiliary roller 209 is rotatably connected to the outer wall of the auxiliary connecting rod 206.

[0027] The outer wall of the auxiliary connecting rod 206 is rotatably connected to the inner wall of the positioning plate 201, and the outer wall of the guide block 207 is slidably connected to the inner wall of the guide groove 208.

[0028] Two positioning plates 201 are provided, symmetrically arranged around the center of the cutting table 1. Two T-shaped slides 202 are provided, symmetrically arranged around the center of the positioning plates 201. Two reset wires 205 are provided, and two auxiliary connecting rods 206 are provided. When the auxiliary connecting rods 206 move downward, the auxiliary rollers 209 rotatably connected to their outer walls move downward synchronously until they come into close contact with the top of the food packaging bag substrate, such as composite film or plastic film, on the surface of the cutting table 1. This causes the auxiliary rollers 209 in contact with them to roll outward synchronously. The rolling of the auxiliary rollers 209 drives the auxiliary connecting rods 206 to rotate around the inner wall of the positioning plates 201. At this time, the guide block 207 fixed on the left side of the auxiliary connecting rod 206 slides along the guide groove 208 opened on the inner wall of the positioning plates 201. Through the cooperation of the guide block 207 and the guide groove 208, the rotation trajectory of the auxiliary connecting rod 206 is restricted, preventing it from rotating off-center.

[0029] The positioning component 3 includes a drive cylinder 301, the outer wall of which is fixedly connected to the inner wall of the cutting table 1, and a drive plate 302 is fixedly connected to the output end of the drive cylinder 301. A limit groove 303 is formed on the surface of the drive plate 302.

[0030] A driven slide rod 304 is slidably connected to the inner wall of the limiting slide groove 303, and the bottom of the driven slide rod 304 is fixedly connected to the top of the positioning plate 201.

[0031] A reset spring 305 is fixedly connected to the top of the positioning plate 201. The top of the reset spring 305 is fixedly connected to the bottom of the drive plate 302. A cutting tool 306 is fixedly connected to the bottom of the drive plate 302. An avoidance groove 307 is provided on the surface of the slitting table 1.

[0032] Two limiting slides 303 are provided, and the two limiting slides 303 are symmetrically arranged with the drive cylinder 301 as the center. Two driven slides 304 are provided, and two return springs 305 are provided. The two return springs 305 connected between the top of the positioning plate 201 and the bottom of the drive plate 302 will be stretched or compressed accordingly during the movement of the positioning plate 201 to store elastic potential energy and provide power for subsequent reset. When the drive plate 302 drives the positioning plate 201 to move down, and the auxiliary component 2 completes the tension adjustment and guiding positioning of the product, the drive plate 302 continues to move down, so that the bottom of the positioning plate 201 fits against the top of the product, thereby positioning the product.

[0033] The implementation principle of a slitting device for food packaging bag production in this embodiment is as follows: When the device receives a slitting command, the power source of the positioning component 3 drives the cylinder 301 to start, and its output end pushes the drive plate 302 to move downward in the vertical direction. The drive plate 302 has a dual transmission function: on the one hand, it drives the cutting blade 306 fixed at the bottom to move downward synchronously, storing force for the slitting action; on the other hand, it provides guidance for the two driven slide rods 304 slidably connected at the top through two symmetrical limiting slide grooves 303 opened on the surface. Since the bottom of the driven slide bar 304 is fixed to the top of the positioning plate 201 symmetrically arranged around the center of the cutting table 1, the downward force of the drive plate 302 is transmitted to the positioning plate 201 through the driven slide bar 304, pushing the positioning plate 201 to move downward synchronously. At this time, the two return springs 305 connected between the positioning plate 201 and the drive plate 302 are compressed and stored elastic potential energy. During the downward movement of the positioning plate 201, it drives the two auxiliary connecting rods 206 connected to it to move downward synchronously. The auxiliary roller 209 rotatably connected to the outer wall of the auxiliary connecting rod 206 approaches the product on the surface of the cutting table 1 until it is in close contact with the top of the product. This causes the auxiliary roller 209 to roll outward synchronously along the product surface. At the same time, the auxiliary roller 209 drives the auxiliary connecting rod 206 to rotate on the inner wall of the positioning plate 201. At this time, the guide block 207 fixed on the left side of the auxiliary connecting rod 206 slides along the guide groove 208 on the inner wall of the positioning plate 201, strictly limiting the rotation trajectory of the auxiliary connecting rod 206 and ensuring that the auxiliary roller 209 always fits against the product surface. When the auxiliary connecting rod 206 rotates, the two reset steel wires 205 fixed at its end are wound around the surface of the connecting rod. The resulting tension drives the T-shaped slider 203 to slide along the T-shaped groove 202 on the top of the positioning plate 201, stretching the tension spring 204 fixed on the front of the T-shaped slider 203, allowing the tension spring 204 to store elastic potential energy. This ensures that the product surface always remains flat and stable. When the positioning plate 201 moves down to the bottom and fits against the top of the substrate, the final positioning of the substrate is completed, preparing for slitting. After the substrate positioning and tension adjustment are completed, the drive cylinder 301 continues to push the drive plate 302 down, causing the cutting tool 306 to contact the substrate and perform the slitting action. The clearance groove 307 on the surface of the slitting table 1 provides space for the cutting tool 306, preventing damage from collision with the slitting table 1 while ensuring the cutting depth is adequate and the cut is smooth and burr-free. After the slitting action is completed, the drive cylinder 301 drives the drive plate 302 to reset upwards. The compressed reset spring 305 releases its elastic potential energy, and the auxiliary positioning plate 201 moves upwards quickly, returning to its initial position through the cooperation of the driven slide rod 304 and the limiting slide groove 303. When the positioning plate 201 moves upwards, the auxiliary roller 209 disengages from the product surface. The elastic potential energy of the tension spring 204 drives the T-shaped slider 203 to slide in the opposite direction. Through the reset wire 205, the auxiliary connecting rod 206 rotates in the opposite direction, and the guide block 207 resets along the guide groove 208, restoring the auxiliary components to their initial state, ready for the next slitting cycle.

[0034] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A slitting device for the production of food packaging bags, characterized in that, It includes a slitting table (1), an auxiliary component (2) is provided on the surface of the slitting table (1), and a positioning component (3) is provided on the top of the auxiliary component (2). The auxiliary component (2) includes a positioning plate (201). A T-shaped groove (202) is formed at the top of the positioning plate (201). A T-shaped slider (203) is slidably connected to the inner wall of the T-shaped groove (202). A tension spring (204) is fixedly connected to the front of the T-shaped slider (203). One end of the tension spring (204) away from the T-shaped slider (203) is fixedly connected to the inner wall of the T-shaped groove (202). A reset wire (205) is attached, and the outer wall of the reset wire (205) is slidably connected to the inner wall of the positioning plate (201). An auxiliary connecting rod (206) is fixedly connected to the end of the reset wire (205) away from the T-shaped slider (203). A guide block (207) is fixedly connected to the left side of the auxiliary connecting rod (206). A guide groove (208) is opened on the inner wall of the positioning plate (201). An auxiliary roller (209) is rotatably connected to the outer wall of the auxiliary connecting rod (206).

2. The slitting equipment for food packaging bag production as described in claim 1, characterized in that: The outer wall of the auxiliary connecting rod (206) is rotatably connected to the inner wall of the positioning plate (201), and the outer wall of the guide block (207) is slidably connected to the inner wall of the guide groove (208).

3. The slitting equipment for food packaging bag production as described in claim 1, characterized in that: Two positioning plates (201) are provided, and the two positioning plates (201) are symmetrically arranged around the center of the cutting table (1). Two T-shaped slides (202) are provided, and the two T-shaped slides (202) are symmetrically arranged around the center of the positioning plates (201). Two reset wires (205) are provided, and two auxiliary connecting rods (206) are provided.

4. A slitting device for food packaging bag production as described in claim 1, characterized in that: The positioning component (3) includes a drive cylinder (301), the outer wall of which is fixedly connected to the inner wall of the cutting table (1), and the output end of the drive cylinder (301) is fixedly connected to a drive plate (302), and a limit groove (303) is formed on the surface of the drive plate (302).

5. A slitting device for food packaging bag production as described in claim 4, characterized in that: The inner wall of the limiting slide groove (303) is slidably connected to a driven slide rod (304), and the bottom of the driven slide rod (304) is fixedly connected to the top of the positioning plate (201).

6. A slitting device for food packaging bag production as described in claim 5, characterized in that: A reset spring (305) is fixedly connected to the top of the positioning plate (201), the top of the reset spring (305) is fixedly connected to the bottom of the drive plate (302), a cutting tool (306) is fixedly connected to the bottom of the drive plate (302), and an avoidance groove (307) is provided on the surface of the slitting table (1).

7. A slitting device for food packaging bag production as described in claim 6, characterized in that: Two limiting slides (303) are provided, and the two limiting slides (303) are symmetrically arranged with the driving cylinder (301) as the center. Two driven slides (304) are provided, and two return springs (305) are provided.

Images