A creasing device for packaging production

Abstract

The utility model relates to the packaging processing technical field, and disclose a kind of indentation device for packaging production, the indentation device for packaging production, including support, support inside is provided with conveyor belt assembly, and support top is fixedly connected with mounting bracket, and the inside movable mounting of mounting bracket is used to the indentation of carton and holds the knife holder, and mounting bracket top is fixedly connected with the electric lever of driving hold knife holder vertical movement. By the adjusting seat cooperation support pole of auxiliary limiting mechanism, the scale plate of the front of support pole can be intuitively read the length of support pole, and the position of support pole in adjusting seat is adjusted easily to adapt to carton of different thickness, after adjusting, rotating locking piece fixes support pole, indentation when rubber spring drives first contact with limit frame to contact carton, avoid carton stress displacement and lift, solve indentation position deviation problem.

Description

Technical Field

[0001] This utility model relates to the field of packaging processing technology, specifically to an indentation device for packaging production. Background Technology

[0002] In the field of packaging processing technology, cardboard boxes are a commonly used packaging carrier in industries such as food, electronics, and daily necessities due to their advantages such as light weight, low cost, and recyclability. The creasing process in the cardboard box production process directly determines the accuracy of subsequent folding and the integrity of the packaging appearance. Therefore, creasing devices for packaging production have become one of the core processing equipment in this field.

[0003] In actual creasing operations, existing creasing devices used in packaging production are prone to displacement or edge lifting of the carton under the force of the pressure holder, causing the creasing position to deviate from the preset trajectory. This results in irregular corners of the box during subsequent folding. Although some devices are equipped with rigid limiting structures to prevent displacement, rigid contact can easily cause damage to the surface of the carton, especially for thinner carton blanks, which may directly lead to carton breakage and affect the quality of the finished packaging. Therefore, there is an urgent need to develop a creasing device for packaging production to solve these practical problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a creasing device for packaging production, which solves the technical problems of existing packaging creasing devices where cartons are easily displaced and warped, leading to creasing deviation, and rigid limiting devices are prone to damaging the carton.

[0005] To achieve the above objectives, this utility model provides a creasing device for packaging production through the following technical solution: a bracket, a conveyor belt assembly is provided on the inner side of the bracket, and a mounting frame is fixedly connected to the top of the bracket. A pressure holding knife holder for creasing cartons is movably installed inside the mounting frame, and an electric rod for driving the pressure holding knife holder to move vertically is fixedly connected to the top of the mounting frame.

[0006] It also includes an auxiliary limiting mechanism, which includes two sets of adjusting seats fixed to both sides of the top of the tool holder. A through support rod is movably installed inside the adjusting seat, and a locking member for limiting the movement position of the support rod is threaded on one side of the adjusting seat. A housing is fixed to the bottom end of the support rod, and a rubber spring is fixed to the top inside the housing. An abutment limiting frame that penetrates the bottom of the housing is fixed to the bottom of the rubber spring, and the initial position of the abutment limiting frame is not at the same horizontal plane as the tool holder.

[0007] Preferably, the front of the support rod is also embedded with a scale plate for visually displaying the distance the support rod moves.

[0008] Preferably, it further includes a stress relief component, which consists of two sets of horizontally corresponding fixed seats, a screw that moves through the top of the fixed seats, a movable block that is slidably installed inside the fixed seats and fixedly connected to the bottom end of the screw, an abutment spring that is sleeved on the outside of the bottom of the screw and fixedly connected to the top of the movable block, a pressure roller that is rotatably installed on one side of the movable block, and a nut that is threaded on the outside of the top of the screw for limiting the movement position of the movable block.

[0009] Preferably, the fixing seats are respectively installed in the middle of both sides of the mounting frame, the screw passes through the top of the fixing seat and is movably connected to the fixing seat, the movable block passes through one side of the fixing seat and is rotatably connected to the pressure roller through the bearing bracket, and the nut abuts against the top of the fixing seat to limit the position of the screw.

[0010] Preferably, the outer surface of the pressure roller is covered with an anti-slip rubber layer.

[0011] Preferably, the rubber spring is made of nitrile rubber and has a cylindrical cross-section.

[0012] This invention provides an embossing device for packaging production. Compared with the prior art, it has the following advantages.

[0013] 1. The auxiliary limiting mechanism, in conjunction with the support rod, allows for easy reading of the extended length of the support rod using the scale plate on the front of the support rod. The position of the support rod within the adjusting seat can be easily adjusted to accommodate cartons of different thicknesses. After adjustment, the locking mechanism is rotated to fix the support rod. During creasing, the rubber spring drives the abutment limiting frame to contact the cartons first, preventing the cartons from shifting or tilting under force, thus solving the problem of creasing position deviation. At the same time, the elastic deformation of the rubber spring can prevent the abutment limiting frame from damaging the cartons, ensuring the integrity of the cartons after creasing.

[0014] 2. By adjusting the position of the screw rod with the nut of the fixed seat of the stress relief component, the moving block slidably installed in the fixed seat is driven to adjust the height of the pressure roller, which can adapt to cartons of different thicknesses. The contact spring pushes the moving block to make the pressure roller fit the carton. The pressure roller rotates with the carton conveyor to smooth out the protrusions and warping caused by internal stress. The outer anti-slip rubber layer prevents the carton from slipping, solves the problem of uneven indentation depth, provides a guarantee for the accurate indentation of the pressure knife holder, and improves the indentation qualification rate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the appearance of the present utility model;

[0016] Figure 2 This is a schematic diagram showing the installation position of the auxiliary limiting mechanism of this utility model;

[0017] Figure 3 This is a partial schematic diagram of the auxiliary limiting mechanism of this utility model;

[0018] Figure 4 This is a partial schematic diagram of the stress relief component of this utility model.

[0019] In the diagram: 1. Support frame; 101. Conveyor belt assembly; 2. Mounting frame; 201. Knife holder; 202. Electric rod; 3. Auxiliary limiting mechanism; 301. Adjusting seat; 302. Support rod; 303. Housing; 304. Rubber spring; 305. Contact limiting frame; 306. Scale plate; 4. Stress relief assembly; 401. Fixed seat; 402. Screw; 403. Moving block; 404. Contact spring; 405. Pressure roller; 406. Nut. Detailed Implementation

[0020] 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.

[0021] First implementation method:

[0022] refer to Figure 1-3 A creasing device for packaging production includes a bracket 1, a conveyor belt assembly 101 is provided inside the bracket 1, and a mounting frame 2 is fixedly connected to the top of the bracket 1. A pressure holding knife holder 201 for creasing cartons is movably installed inside the mounting frame 2, and an electric rod 202 for driving the pressure holding knife holder 201 to move vertically is fixedly connected to the top of the mounting frame 2.

[0023] It also includes an auxiliary limiting mechanism 3, which includes two sets of adjusting seats 301 fixed to the top sides of the pressure holding holder 201. A through support rod 302 is movably installed inside the adjusting seat 301, and a locking member for limiting the movement position of the support rod 302 is threaded on one side of the adjusting seat 301. A housing 303 is fixed to the bottom end of the support rod 302. A rubber spring 304 is fixed to the top inside the housing 303, and an abutting limiting frame 305 that penetrates the bottom of the housing 303 is fixed to the bottom of the rubber spring 304. The initial position of the abutting limiting frame 305 is not at the same horizontal plane as the pressure holding holder 201.

[0024] The support rod 302 also has a scale plate 306 embedded on its front side for visually displaying the movement distance of the support rod 302. The rubber spring 304 is made of nitrile rubber and has a cylindrical cross-section.

[0025] Working principle: The bracket 1 provides installation support for the entire device. After the conveyor belt assembly 101 inside it is started, it stably conveys the carton to be creasing along the preset path to the creasing station directly below the creasing knife holder 201.

[0026] The mounting frame 2, which is fixed to the top of the bracket 1, provides a movable mounting base for the pressure knife holder 201. When the carton arrives at the work station, the electric rod 202, which is fixed to the top of the mounting frame 2, is powered on and runs. Its output end drives the pressure knife holder 201 to move vertically downward along the internal moving path of the mounting frame 2. The pressure knife holder 201 uses the indentation structure at the bottom of the pressure knife holder 201 to press the carton at the preset position on the top of the carton to be indented, thus completing the carton indentation function.

[0027] During the downward movement of the pressure holder 201, the adjustment seat 301 of the auxiliary limiting mechanism 3 fixed on both sides of its top moves synchronously. The support rod 302 movably installed inside the adjustment seat 301 moves with the adjustment seat 301, thereby driving the housing 303 fixed at the bottom of the support rod 302 to move downward. The rubber spring 304 fixed at the top inside the housing 303 synchronously drives the abutment limiting frame 305 that passes through the bottom of the housing 303 to move.

[0028] Since the initial position of the contact limiting frame 305 is not on the same horizontal plane as the pressure holding frame 201, the contact limiting frame 305 will first contact the top of the carton to be crimped. As the pressure holding frame 201 continues to move downward, the rubber spring 304 will undergo compression deformation due to its own elasticity, so that the contact limiting frame 305 always moves with the pressure holding frame 201 and continuously contacts the top of the carton to be crimped, realizing the pre-limiting and fixing function of the carton. This process can prevent the carton from shifting or tilting due to force during crimping, and solve the problems of crimping position deviation and irregular folding caused by inaccurate carton positioning.

[0029] Meanwhile, the operator can visually read the extension length of the support rod 302 by observing the scale plate 306 embedded in the front of the support rod 302, and then adjust the position of the support rod 302 in the adjustment seat 301. When the support rod 302 moves, the housing 303, the rubber spring 304 and the contact limit frame 305 are adjusted simultaneously to adapt to the cardboard boxes of different thicknesses to be crimped. After the adjustment is completed, the locking piece threaded on one side of the adjustment seat 301 is rotated to fix the moving position of the support rod 302, ensuring that the auxiliary limit mechanism 3 remains stable during the crimping process.

[0030] Second implementation method:

[0031] In traditional devices, the cardboard boxes to be crimped are prone to internal stress due to storage and stacking, which causes the edges to curl up and the surface to become uneven when transported by the conveyor belt assembly, resulting in uneven crimping depth and crease cracking. To address this, this device is also designed with a stress relief component, the structure and working principle of which are as follows.

[0032] refer to Figure 4In the second embodiment of this utility model, a stress relief component 4 is also included. The stress relief component 4 consists of two sets of horizontally corresponding fixed seats 401, a screw 402 that movably passes through the top of the fixed seat 401, a movable block 403 that is slidably installed inside the fixed seat 401 and fixedly connected to the bottom end of the screw 402, an abutment spring 404 that is sleeved on the outside of the bottom of the screw 402 and fixedly connected to the top of the movable block 403, a pressure roller 405 that is rotatably installed on one side of the movable block 403, and a nut 406 that is threaded on the outside of the top of the screw 402 for limiting the movement position of the movable block 403.

[0033] The fixed base 401 is installed in the middle of both sides of the mounting frame 2. The screw 402 passes through the top of the fixed base 401 and is movably connected to the fixed base 401. The moving block 403 passes through one side of the fixed base 401 and is rotatably connected to the pressure roller 405 through the bearing frame. The nut 406 abuts against the top of the fixed base 401 to limit the position of the screw 402.

[0034] The outer surface of the pressure roller 405 is covered with an anti-slip rubber layer.

[0035] Working principle: The two sets of fixing seats 401 of the stress relief component 4 are respectively installed in the middle of both sides of the mounting frame 2, providing the installation foundation for the whole component. The operator first adjusts the position of the screw 402 on the top of the fixing seat 401 by rotating the nut 406 on the outer thread of the top of the screw 402 according to the thickness of the carton to be crimped.

[0036] The bottom end of the screw 402 is fixedly connected to the movable block 403 which is slidably installed inside the fixed base 401. Therefore, when the screw 402 moves, it synchronously drives the movable block 403 to adjust the movement stroke in the fixed base 401, ensuring that the spacing between the subsequent pressure roller 405 and the conveyor belt assembly 101 is adapted to the thickness of the carton.

[0037] When the conveyor belt assembly 101 drives the carton to be creasing to the creasing station, the carton first enters the pressing area of ​​the stress relief assembly 4. At this time, the abutment spring 404, which is sleeved on the outside of the bottom of the screw 402 and fixedly connected to the top of the moving block 403, pushes the moving block 403 to slide down along the inside of the fixed seat 401 by its own elastic force. The side of the moving block 403 that passes through the fixed seat 401 is rotatably connected to the pressing roller 405 through the bearing frame. Therefore, when the moving block 403 slides, it drives the pressing roller 405 to move down synchronously, so that the pressing roller 405 is tightly attached to the surface of the carton to be creasing.

[0038] As the cartons are continuously conveyed, the pressure roller 405 rotates synchronously under the friction of the cartons, continuously pressing the surface of the cartons. This process can smooth out the bulges and warps caused by internal stress in the cartons, thus eliminating stress. At the same time, the anti-slip rubber layer covering the outer surface of the pressure roller 405 can increase the friction with the cartons, preventing the cartons from slipping or shifting during pressing, further ensuring the stress elimination effect. After the stress is eliminated, the cartons enter the creasing station of the pressure knife holder 201, which can avoid creasing defects caused by uneven surfaces and improve the creasing quality.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An indentation device for packaging production, characterized in that: Includes a bracket (1), a conveyor belt assembly (101) is provided inside the bracket (1), and a mounting frame (2) is fixedly connected to the top of the bracket (1). A pressure holding knife holder (201) for creasing cartons is movably installed inside the mounting frame (2), and an electric rod (202) for driving the pressure holding knife holder (201) to move vertically is fixedly connected to the top of the mounting frame (2). It also includes an auxiliary limiting mechanism (3), which includes two sets of adjusting seats (301) fixed to the top sides of the pressure holding tool holder (201). A through support rod (302) is movably installed inside the adjusting seat (301), and a locking member for limiting the movement position of the support rod (302) is threaded on one side of the adjusting seat (301). A housing (303) is fixed to the bottom end of the support rod (302), and a rubber spring (304) is fixed to the top inside the housing (303). A contact limiting frame (305) that penetrates the bottom of the housing (303) is fixed to the bottom of the rubber spring (304), and the initial position of the contact limiting frame (305) is not on the same horizontal plane as the pressure holding tool holder (201).

2. The indentation device for packaging production according to claim 1, characterized in that: The front of the support rod (302) is also embedded with a scale plate (306) for visually displaying the moving distance of the support rod (302).

3. The indentation device for packaging production according to claim 1, characterized in that: It also includes a stress relief assembly (4), which consists of two sets of horizontally corresponding fixed seats (401), a screw (402) that moves through the top of the fixed seat (401), a movable block (403) that is slidably installed inside the fixed seat (401) and fixedly connected to the bottom end of the screw (402), an abutment spring (404) that is sleeved on the outside of the bottom of the screw (402) and fixedly connected to the top of the movable block (403), a pressure roller (405) that is rotatably installed on one side of the movable block (403), and a nut (406) that is threaded on the outside of the top of the screw (402) for limiting the movement position of the movable block (403).

4. The indentation device for packaging production according to claim 3, characterized in that: The fixed base (401) is installed in the middle of both sides of the mounting frame (2). The screw (402) passes through the top of the fixed base (401) and is movably connected to the fixed base (401). The moving block (403) passes through one side of the fixed base (401) and is rotatably connected to the pressure roller (405) through the bearing frame. The nut (406) abuts against the top of the fixed base (401) to limit the position of the screw (402).

5. The indentation device for packaging production according to claim 4, characterized in that: The outer surface of the pressure roller (405) is covered with an anti-slip rubber layer.

6. The indentation device for packaging production according to claim 1, characterized in that: The rubber spring (304) is made of nitrile rubber and has a cylindrical cross-section.

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