Automatic laminating device of packaging machine

Abstract

The present invention relates to an automatic stacking device for a packaging machine, and belongs to the technical field of intelligent packaging equipment. The device includes a body plate, a chain conveying mechanism, two-side push-and-stack components, and a leveling component. The chain conveying mechanism is responsible for product transportation, the two-side push-and-stack components realize product stacking through a stacking lifting mechanism and a side-pushing mechanism, and the leveling component levels the stacked products in four directions: front, back, left, and right. The device has a compact structure and a high degree of automation, which solves the problems of low stacking efficiency and large errors in traditional packaging machines, and improves packaging efficiency and product quality. The automatic stacking device of the present invention has broad application prospects and is suitable for automated packaging production lines for a variety of products.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent packaging equipment, and in particular to an automatic stacking device of a packaging machine. Background Art

[0002] Intelligent packaging equipment is a key branch of the packaging machinery industry. It integrates technologies from multiple disciplines, including mechanics, electronics, information technology, and materials, and is highly technology-intensive. These devices not only perform the basic functions of traditional packaging machinery, such as filling, wrapping, and sealing, but also offer intelligent and automated features, significantly improving packaging efficiency and product quality.

[0003] At present, stacking packaging is an important form of product packaging and is becoming more and more popular in the market. For manufacturers, the products they produce are often not just one type, but multiple products of different types. In the past, packaging machines only packaged single-layer products. Traditional packaging machines need to complete the stacking of products through two actions. In other words, the packaged products need to be stacked by stacking equipment. This can be done by manually operating the machine for semi-automatic stacking or by automation to automatically stack the packaged products. However, manual operation is prone to stacking errors, which affects the subsequent overall packaging of the stacked products. Manual stacking requires more manpower, and the stacking will become uneven over time. If the packaged products are automatically stacked through the whole assembly production line, the overall equipment structure is more complex, the cost is higher, and the space occupied is larger, which has greater limitations.

[0004] Therefore, in order to solve the above technical problems, the present application proposes an automatic stacking device for a packaging machine. Summary of the Invention

[0005] The object of the present invention is to provide an automatic stacking device for a packaging machine to solve the above-mentioned deficiencies in the prior art.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an automatic stacking device for a packaging machine, comprising a body plate and a chain conveying mechanism disposed on the body plate for conveying produced products, wherein one end of the chain conveying mechanism is a feeding end and the other end is a discharging end, and the automatic stacking device for the packaging machine further comprises:

[0007] The pushing and stacking assemblies and the leveling assemblies on both sides are sequentially arranged along the feeding end and the discharging end of the chain conveying mechanism, and the pushing and stacking assemblies and the leveling assemblies on both sides are both installed on the fuselage plate. The pushing and stacking assemblies on both sides are used to stack the products conveyed by the chain conveying mechanism, and after the products are stacked by the pushing and stacking assemblies, the leveling assemblies are used to level the stacked products in four directions of front, back, left and right.

[0008] Preferably, the two-side pushing and stacking assembly includes a stacking lifting mechanism and a side pushing mechanism. When the products are conveyed by the chain conveying mechanism, the side pushing mechanism is used to push the products lifted by the stacking lifting mechanism to the surface of the products that are not lifted, thereby realizing stacking.

[0009] The stacking and lifting mechanism includes a driving motor B arranged on the fuselage plate and a shaft body installed on the output end of the driving motor B. A rotating seat is fixedly provided on the outer side of the shaft body, a support seat is rotatably provided on the rotating seat, and a limiting synchronous belt is installed between the rotating shaft of the support seat and the shaft body through a pulley. When the support seat rotates with the rotating seat, the limiting synchronous belt is used to keep the support seat in a horizontal state without deflection to achieve the lifting action of the product.

[0010] Preferably, the side-push mechanism includes two support vertical plates fixed on the fuselage plate, a support plate fixed on the support vertical plates, and two side-push chains and two drive motors A respectively installed on the two support vertical plates. The drive motor A is used to drive the side-push chain to rotate. The two side-push chains are each provided with a paddle through a connecting rod. When the support seat lifts the product and places it on the support plate, the paddle moves with the side-push chain to push the product out so that the product is stacked on the product surface on the chain conveying mechanism.

[0011] Preferably, the leveling assembly includes a first conveyor belt and a second conveyor belt installed on the fuselage plate, and two front push plates are fixedly provided on the belt surface of the first conveyor belt. When the stacked products move to abut against the front push plates through the chain conveyor mechanism, the chain conveyor mechanism pushes the first conveyor belt to rotate, and a synchronous belt second is installed between the driving wheels of the first conveyor belt and the second conveyor belt via a pulley, and the driving wheel diameter of the first conveyor belt is larger than the driving wheel diameter of the second conveyor belt. When the first conveyor belt rotates, the synchronous belt second is used to make the second conveyor belt rotate at a rotation speed greater than the first conveyor belt, and a push plate second is fixed on the second conveyor belt, and a push plate first is installed on the push plate second through a spring. When the second conveyor belt rotates, the push plate one is used to contact the product surface located above after the stacking, so as to realize the leveling of the stacked products along the direction of the chain conveyor mechanism.

[0012] Preferably, the leveling assembly also includes a side-pushing leveling mechanism arranged between the fuselage plate and the first conveyor belt. When the stacked products hit the surface of the front push plate and cause the first conveyor belt to rotate, the side-pushing leveling mechanism is used to level both sides of the stacked products and restore them to their original position after leveling.

[0013] Preferably, the side push and leveling mechanism includes a driving turntable rotatably arranged on the fuselage plate, a synchronous belt 1 is installed between the driving turntable and the driving wheel of the first conveyor belt via a pulley, a chuck with a first tooth is fixedly provided on the central surface of the driving turntable, and a second tooth is also provided on the inner side wall surface of the driving turntable, and the leveling mechanism also includes a forward and reverse screw rod rotatably arranged on the side surface of the fuselage plate away from the driving turntable, and a driven gear is fixedly provided at the end position of the forward and reverse screw rod between the chuck and the inner wall surface of the driving turntable, and when the driving turntable rotates, the first tooth and the second tooth are respectively meshed with the driven gear, and two movable blocks are threadedly provided on the forward and reverse screw rods, and lateral clamping plates are fixedly provided on the two movable blocks.

[0014] Preferably, multiple sets of pulleys are installed in an array in the mutually adjacent installation grooves of the two lateral splints. When the two sides of the laminated products are leveled by the lateral splints, the pulleys are used to reduce friction to prevent the products from being obstructed too much and restricted in transportation.

[0015] Preferably, the first conveyor belt is provided with a plurality of elastic friction blocks on the belt surface near the two front push plates. After the front push plates are separated from the laminated products, the elastic friction blocks are used to provide sufficient friction with the laminated products so that the first conveyor belt continues to rotate to rotate the front push plates into place.

[0016] Preferably, the vertical heights of the first conveyor belt and the second conveyor belt are lower than the vertical height of the chain conveyor mechanism.

[0017] Preferably, the chain conveyor mechanism is provided with a plurality of push blocks in an array with equal spacing, and the push blocks are used to push the product toward the discharge end of the chain conveyor mechanism.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In this invention, the two-sided push-and-stack assembly consists of a stacking and lifting mechanism and a side-pushing mechanism. The stacking and lifting mechanism, driven by a drive motor B and a rotating base, rotates the support base, lifting the product to a preset height and placing it on the support plate of the side-pushing mechanism. The side-pushing mechanism, in turn, uses a drive motor A to drive a side-pushing chain. The paddles on the chain push the product off the support plate, enabling it to stack with the product on the chain conveyor below. During this process, a photoelectric sensor controls the start and stop of the motor, ensuring precise synchronization of the movements.

[0020] 2. In the present invention, the leveling assembly includes a first conveyor belt and a second conveyor belt, connected by a synchronous belt. A forward push plate is fixed to the first conveyor belt. When the stacked products come into contact with the forward push plate, the chain conveyor mechanism propels the first conveyor belt to rotate. Because the pulley diameter of the first conveyor belt is larger than that of the second conveyor belt, the second conveyor belt rotates at a faster speed. Push plate 1 (connected to push plate 2 via a spring) on ​​the second conveyor belt contacts the surface of the stacked products, leveling them along the chain conveyor mechanism. The leveling assembly also includes a side-pushing leveling mechanism that leveled both sides of the products, ensuring neat stacking.

[0021] 3. This invention solves the problem of traditional packaging machines relying on manual labor or complex automated equipment for stacking. By utilizing a compact, low-cost automatic stacking device, it achieves efficient and precise product stacking. The ingenious design of the two-sided sliding stacking and leveling components not only improves packaging efficiency, but also ensures product quality and reduces the use of human resources. Its intelligent and automated features will significantly enhance packaging efficiency and product quality, reduce production costs, and bring greater economic and social benefits to enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0024] Figure 2 A schematic structural diagram of a portion of the overall structure of the present invention;

[0025] Figure 3 Schematic diagram of the structure of the two-side pushing and stacking mechanism in the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the leveling assembly in the present invention from a top view;

[0027] Figure 5 It is a structural schematic diagram of the side push and leveling mechanism in the present invention;

[0028] Figure 6 It is a structural schematic diagram of a front view of the leveling assembly in the present invention;

[0029] Figure 7 For the present invention Figure 1 A schematic diagram of the structure enlarged in the middle;

[0030] Figure 8 It is a schematic diagram of the stacking process in the present invention.

[0031] 1. Body plate; 2. Chain conveying mechanism; 21. Push block; 3. Pushing and stacking components on both sides; 31. Side pushing mechanism; 311. Connecting rod; 312. Paddle; 313. Support plate; 314. Side pushing chain; 315. Drive motor A; 316. Support vertical plate; 32. Stacking lifting mechanism; 321. Drive motor B; 322. Rotating seat; 323. Support seat; 324. Positioning synchronous belt; 325. Shaft; 4. Leveling component; 42. Front push plate; 43, side push and leveling mechanism; 431, synchronous belt 1; 432, tooth 1; 433, driving turntable; 434, chuck; 435, tooth 2; 436, driven gear; 437, forward and reverse screw rods; 438, movable block; 439, lateral splint; 4310, pulley; 44, first conveyor belt; 45, synchronous belt 2; 46, second conveyor belt; 47, elastic friction block; 48, push plate 1; 49, spring; 410, push plate 2. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] like Figure 1-8 As shown, the present invention provides an automatic stacking device of a packaging machine, comprising a body plate 1 and a chain conveying mechanism 2 arranged on the body plate 1 for conveying the produced products. The body plate 1 is used to install multiple components or mechanisms in the automatic stacking device, wherein one end of the chain conveying mechanism 2 is a feed end, and the other end is a discharge end. The products to be conveyed and stacked are conveyed through the feed end and conveyed to the outside through the discharge end. The chain conveying mechanism 2 is a chain driven by a motor and a sprocket. This conveying mechanism is a prior art and will not be described in detail here.

[0034] In the process of conveying the products from the feeding end to the discharging end of the chain conveyor mechanism 2, two-side pushing and stacking components 3 and leveling components 4 are sequentially arranged along the feeding end and the discharging end of the chain conveyor mechanism 2, and the two-side pushing and stacking components 3 and the leveling components 4 are both installed on the fuselage plate 1. The two-side pushing and stacking components 3 can lift the products conveyed on the chain conveyor mechanism 2 and stack the products in layers. After stacking, the leveling components 4 are used to level the stacked products in the four directions of front, back, left, and right to prevent the stacked products from being misaligned and affecting the overall packaging effect.

[0035] In one embodiment of the present invention, the two-side pushing and stacking assembly 3 includes a stacking and lifting mechanism 32 and a side pushing mechanism 31, and both the stacking and lifting mechanism 32 and the side pushing mechanism 31 are arranged between the chain conveyor mechanism 2. When the product is conveyed to the position of the stacking and lifting mechanism 32 by the chain conveyor mechanism 2, the stacking and lifting mechanism 32 lifts the product and places it on the side pushing mechanism 31. When the chain conveyor mechanism 2 conveys the next product to the position directly below the product placed on the side pushing mechanism 31, the side pushing mechanism 31 pushes the product on it at the same speed as the chain conveyor mechanism 2 until the product falls on the surface of the product below on the chain conveyor mechanism 2, at which time the stacking of the products is completed.

[0036] The stacking lifting mechanism 32 includes a driving motor B321 arranged on the body plate 1 and a shaft 325 installed on the output end of the driving motor B321. A rotating seat 322 is fixedly arranged on the outer peripheral side of the shaft 325. When the product is conveyed to the top of the support seat 323 through the chain conveying mechanism 2, the driving motor B321 is controlled to start by the photoelectric sensing device installed on the body plate 1, so that the rotating seat 322 is rotated through the shaft 325. A limited pulley is installed between the rotating shaft of the support seat 323 rotatably arranged on the rotating seat 322 and the shaft 325. The synchronous belt 324 is positioned in the same position, so that a lever system is formed between the shaft 325, the rotating base 322 and the support base 323. According to the Wheatstone lever principle, the support base 323 rotates with the rotating base 322 as a whole and does not flip over, maintaining the original horizontal angle. Therefore, when the support base 323 rotates with the rotating base 322, the support base 323 remains in a horizontal state without deflection to achieve the lifting action of the product, and the product is placed on the side push mechanism 31 through the overall rotation of the rotating base 322, and then the product on it is pushed out by the side push mechanism 31 to stack the products;

[0037] The side push mechanism 31 includes two support uprights 316 fixed on the fuselage plate 1, a support plate 313 fixed on the support uprights 316, and two side push chains 314 and two drive motors A315 respectively installed on the two support uprights 316. The drive motor A315 can drive the side push chain 314 to rotate. In the process of placing the products to be stacked on the support plate 313 through the support seat 323, when the number of stacked layers of the products reaches a preset value, the next product is transported to the bottom of the support plate 313 by the chain conveying mechanism 2, and the photoelectric sensing device set on the fuselage plate 1 controls the drive motor A315 to start, so that the side push chain 314 rotates. The two side push chains 314 are both provided with paddles 312 through the connecting rods 311, so that the products on the support plate 313 can be pushed out by the paddles 312, and the rotation speed of the side push chains 314 is the same as the rotation speed of the chain conveyor mechanism 2, so that after the products on the support plate 313 are separated from the support plate 313, they fall on the surface of the products on the chain conveyor mechanism 2 to achieve stacking. Among them, the photoelectric sensing device can be an infrared sensor or a photoelectric sensor. When the receiving signal of the photoelectric sensing device changes, the controller controls the start and stop of the drive motor A315 and the drive motor B321. This photoelectric sensing device and the corresponding controller are both existing technologies and will not be described in detail here.

[0038] After the products are stacked, since the position of the products on the support base 323 is not guaranteed to be the same each time the products are lifted by the support base 323, it is also impossible to ensure that the position of the products on the support plate 313 is the same each time. Moreover, when the products are pushed by the paddle 312, the products on the support plate 313 will tilt when they fall, because the products have a certain height. This makes the products neatly stacked. After the products are stacked, the leveling mechanism can be used to level the four directions of the stacked products without manual processing.

[0039] In another embodiment of the present invention, the leveling assembly 4 includes a first conveyor belt 44 and a second conveyor belt 46 mounted on the fuselage panel 1, and two front push plates 42 are fixedly provided on the belt surface of the first conveyor belt 44. When the laminated products move through the chain conveyor mechanism 2 to abut against the front push plates 42, the chain conveyor mechanism 2 pushes the first conveyor belt 44 to rotate, and a synchronous belt 2 45 is installed between the driving wheels of the first conveyor belt 44 and the second conveyor belt 46 through a pulley. In this way, the rotation of the first conveyor belt 44 can cause the second conveyor belt 46 to rotate via the synchronous belt 2 45, and since the pulley diameter of the first conveyor belt 44 is larger than the pulley diameter of the second conveyor belt 46 , so that the belt rotation rate of the second conveyor belt 46 will be greater than the belt rotation rate of the first conveyor belt 44, and a push plate 2 410 is fixedly provided on the second conveyor belt 46, and the push plate 2 410 is installed with a push plate 1 48 through a spring 49, so that the push plate 2 410 and the push plate 1 48 on the second conveyor belt 46 will rotate at a speed greater than the belt rotation speed of the first conveyor belt 44. In this way, even if the laminated products are still moving toward the discharge end along the chain conveyor mechanism 2, the push plate 1 48 will also contact the surface of the laminated products, and the push plate 1 48 will contact the laminated products against the front push plate 42, so that the laminated products are flattened in both the front and rear directions through the squeezing of the front push plate 42 and the push plate 1 48;

[0040] It should be noted that after the push plate 1 48 contacts the surface of the laminated product and is flattened, the second conveyor belt 46 is moving at a relatively high speed, so that the deformation of the spring 49 has a certain elastic space, thereby preventing the synchronous belt 2 45 from slipping. Moreover, after the product pushes the first conveyor belt 44 to rotate and the positions of the two front push plates 42 thereon are exchanged, the second conveyor belt 46 rotates exactly one full circle, causing the push plates 1 48 and 2 410 to return to their initial positions.

[0041] When the stacked products push the front push plate 42 located above the first conveyor belt 44 to rotate, it is necessary to make the front push plate 42 located below the first conveyor belt 44 rotate to the position before the front push plate 42 above the belt contacts the product, so that the next product can also push the first conveyor belt through the front push plate 42. The first conveyor belt 44 is provided with a plurality of elastic friction blocks 47 on the belt surface near the two front push plates 42. After the front push plate 42 is separated from the stacked products, the front push plate 42 can no longer push the first conveyor belt 44 to rotate. At this time, the front push plate 42 can only rotate to the side position of the first conveyor belt 44. Since the chain conveyor mechanism 2 will sink slightly when conveying the product, the product after sinking The product squeezes the elastic friction block 47, causing the friction block to deform and come into contact with the bottom surface of the product. Then, under the action of the elastic friction block 47, there is sufficient friction between the elastic friction block 47 and the laminated product to cause the first conveyor belt 44 to continue rotating, causing the front push plate 42 to rotate, until the elastic friction block 47 is separated from the laminated product. The two front push plates 42 on the first conveyor belt 44 are swapped, making it easier for the next product to push the first conveyor belt 44 forward, and converting the disadvantage that the chain conveyor mechanism 2 sinks slightly under the action of gravity when conveying products into a positive effect. The elastic friction block 47 can slow down the sinking trend of the chain conveyor mechanism 2, and increase the friction force, thereby extending the rotation distance of the first conveyor belt 44 so that the two front push plates 42 can be interchanged.

[0042] After the stacked products collide with the front push plate 42, the side push and leveling mechanism 43 provided between the body plate 1 and the first conveyor belt 44 is used to level the stacked products in both left and right directions. After leveling the stacked products, the side push and leveling mechanism 43 returns to its original position.

[0043] In another embodiment of the present invention, the side-pushing and leveling mechanism 43 includes a driving turntable 433 rotatably arranged on the fuselage plate 1, and a synchronous belt 1 431 is installed between the driving turntable 433 and the driving wheel of the first conveyor belt 44 through a pulley. When the product pushes the first conveyor belt 44 to rotate, the driving turntable 433 can be rotated by the synchronous belt 1 431. A chuck 434 with a tooth 1 432 is fixedly provided on the central surface of the driving turntable 433, and a tooth 2 435 is also provided on the inner side wall surface of the driving turntable 433. The leveling mechanism also includes a forward and reverse screw rod 437 rotatably arranged on the side surface of the fuselage plate 1 away from the driving turntable 433, and a driven gear 436 is fixedly provided at the end position of the forward and reverse screw rod 437 between the chuck 434 and the inner wall surface of the driving turntable 433. When the driving turntable 433 rotates, the tooth 1 432 and the tooth 2 435 are respectively engaged with the driven gear 436, which is divided into two motion states here:

[0044] In the first motion state, when the tooth 1 432 is engaged with the driven gear 436, the driven gear 436 rotates counterclockwise, and two movable blocks 438 are threadedly provided on the forward and reverse screw rods 437 and are slidably provided with the fuselage plate 1. The two movable blocks 438 are fixedly provided with lateral clamping plates 439. The driven gear 436 rotates counterclockwise, which causes the forward and reverse screw rods 437 to circulate counterclockwise. At this time, the two movable blocks 438 drive the two lateral clamping plates 439 to approach each other, and the left and right sides of the laminated product come into conflict, thereby achieving leveling of the left and right sides of the laminated product.

[0045] The second moving state is as follows: with the rotation of the driving turntable 433, the second meshing tooth 435 and the driven gear 436 rotate, and the driven gear 436 rotates clockwise. At this time, the two movable blocks 438 drive the lateral clamping plates 439 to move away from each other until they return to their original positions, thereby facilitating the next leveling of the product in the left and right directions. The lateral clamping plates 439 with two moving states can be used to level the stacked products in the left and right directions. After leveling, the lateral clamping plates 439 can also be automatically restored to their original positions for the next leveling without manual adjustment, thereby improving the effect of intelligent packaging. Moreover, this dynamic way of leveling the product is better than the way of leveling the stacked products in the left and right directions using a limit plate. After all, when the products are stacked, the misalignment direction and degree of the upper product will not be exactly the same, so the way of leveling the products in the left and right directions used in this invention is obviously more worthy of promotion.

[0046] To reduce friction caused by the lateral clamping plates 439 when flattening the products in both left and right directions, multiple sets of pulleys 4310 are installed in an array in adjacent mounting slots of the lateral clamping plates 439. When the lateral clamping plates 439 flatten the two sides of the stacked products, the pulleys 4310 are used to reduce friction to prevent excessive obstruction of the products and thus restricting transportation.

[0047] It should be noted that after the two front push plates 42 on the first conveyor belt 44 exchange positions once, the driving turntable 433 rotates exactly one circle. Here, the ratio of the diameter of the driving turntable 433 to the radius of the driving wheel of the first conveyor belt 44 can be obtained by simple calculation, and the details are not repeated here.

[0048] In order to prevent the first conveyor belt 44 and the second conveyor belt 46 from affecting the conveying of products by the chain conveyor mechanism 2, the vertical heights of the first conveyor belt 44 and the second conveyor belt 46 are lower than the vertical height of the chain conveyor mechanism 2, and after the chain conveyor mechanism 2 slightly sinks and contacts the elastic friction block 47 when conveying products, to prevent the friction force between the elastic friction block 47 and the product from being greater than the friction force between the product and the surface of the chain conveyor mechanism 2, a plurality of equally spaced push blocks 21 are arranged on the chain conveyor mechanism 2. The push blocks 21 are used to push the product toward the discharge end of the chain conveyor mechanism 2 to prevent the product from slipping on the chain conveyor mechanism 2.

[0049] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. An automatic stacking device for a packaging machine, comprising a body plate (1) and a chain conveying mechanism (2) arranged on the body plate (1) for conveying produced products, wherein: One end of the chain conveying mechanism (2) is a feeding end, and the other end is a discharging end, and is characterized in that the automatic laminating device of the packaging machine further comprises: A two-side push stacking assembly (3) and a leveling assembly (4) are sequentially arranged along the feed end and the discharge end of the chain conveying mechanism (2), and the two-side push stacking assembly (3) and the leveling assembly (4) are both mounted on the body plate (1). The two-side push stacking assembly (3) is used to stack the products conveyed by the chain conveying mechanism (2), and after the products are stacked by the two-side push stacking assembly (3), the leveling assembly (4) is used to level the stacked products in four directions of front, back, left, and right. The leveling assembly (4) includes a first conveyor belt (44) and a second conveyor belt (46) installed on the fuselage plate (1). The leveling assembly (4) also includes a side-pushing leveling mechanism (43) arranged between the fuselage plate (1) and the first conveyor belt (44). Two front push plates (42) are fixedly arranged on the belt surface of the first conveyor belt (44). When the stacked products move to abut against the front push plates (42) through the chain conveying mechanism (2), the chain conveying mechanism (2) pushes the first conveyor belt (44) to rotate. When the stacked products abut against the surface of the front push plates (42) and the first conveyor belt (44) rotates, the side-pushing leveling mechanism (43) levels both sides of the stacked products and restores the products to their original position after leveling. The side push leveling mechanism (43) includes a driving turntable (433) rotatably arranged on the fuselage plate (1), a synchronous belt (431) is installed between the driving turntable (433) and the driving wheel of the first conveyor belt (44) via a pulley, a chuck (434) with a first tooth (432) is fixedly arranged on the central surface of the driving turntable (433), and a second tooth (435) is also arranged on the inner side wall surface of the driving turntable (433), and the leveling mechanism also includes a rotatable drive mechanism (433) arranged on the side of the fuselage plate (1) away from the driving turntable (433) A forward and reverse screw rod (437) is provided on the surface of the front and rear surfaces, and a driven gear (436) is fixedly provided at the end position of the forward and reverse screw rod (437) between the chuck (434) and the inner wall surface of the driving turntable (433). When the driving turntable (433) rotates, the first tooth (432) and the second tooth (435) respectively engage with the driven gear (436). Two movable blocks (438) are slidably provided with the body plate (1) on the threaded portion of the forward and reverse screw rod (437), and lateral clamping plates (439) are fixedly provided on both movable blocks (438); There are two motion states here: In the first motion state, when the first tooth (432) is engaged with the driven gear (436), the driven gear (436) rotates counterclockwise, and the forward and reverse screw rods (437) circulate counterclockwise. At this time, the two movable blocks (438) drive the two lateral clamping plates (439) to approach each other; In the second motion state, as the driving turntable (433) rotates, the second meshing tooth (435) and the driven gear (436) rotate, and the driven gear (436) rotates clockwise. At this time, the two movable blocks (438) drive the lateral clamping plates (439) to move away from each other until they return to their original positions.

2. The automatic laminating device of a packaging machine according to claim 1, characterized in that: The two-side pushing stacking assembly (3) comprises a stacking lifting mechanism (32) and a side pushing mechanism (31), both of which are arranged between the chain conveying mechanism (2). When the product is conveyed by the chain conveying mechanism (2), the side pushing mechanism (31) is used to push the product at the lifting height of the stacking lifting mechanism (32) to the surface of the product that is not lifted, thereby realizing a stacking action; The stacking and lifting mechanism (32) comprises a driving motor B (321) arranged on the body plate (1) and a shaft (325) installed on the output end of the driving motor B (321); a rotating seat (322) is fixedly provided on the outer peripheral side of the shaft (325); a supporting seat (323) is rotatably provided on the rotating seat (322); and a limiting synchronous belt (324) is installed between the rotating shaft of the supporting seat (323) and the shaft (325) via a pulley. When the supporting seat (323) rotates with the rotating seat (322), the limiting synchronous belt (324) is used to keep the supporting seat (323) in a horizontal state without deflection, so as to achieve a lifting action for the product.

3. The automatic stacking device of a packaging machine according to claim 2, characterized in that: The side push mechanism (31) comprises two support uprights (316) fixed on the body plate (1), a support plate (313) fixed on the support uprights (316), and two side push chains (314) and two drive motors A (315) respectively mounted on the two support uprights (316). The drive motors A (315) are used to drive the side push chains (314) to rotate. The two side push chains (314) are each provided with a paddle (312) via a connecting rod (311). When the support seat (323) lifts the product and places it on the support plate (313), the paddle (312) moves along with the side push chain (314) to push the product out so that the product is stacked on the product surface of the chain conveying mechanism (2).

4. The automatic stacking device of a packaging machine according to claim 3, characterized in that: A synchronous belt 2 (45) is installed between the driving wheels of the first conveyor belt (44) and the second conveyor belt (46) through a pulley, and the pulley diameter of the first conveyor belt (44) is larger than the pulley diameter of the second conveyor belt (46). When the first conveyor belt (44) rotates, the synchronous belt 2 (45) is used to make the second conveyor belt (46) rotate at a speed greater than that of the first conveyor belt (44). A push plate 2 (410) is fixedly provided on the second conveyor belt (46), and the push plate 1 (48) is installed on the push plate 2 (410) through a spring (49). When the second conveyor belt (46) rotates, the push plate 1 (48) is used to contact the surface of the product located above after stacking, so as to achieve leveling of the stacked product along the direction of the chain conveying mechanism (2).

5. The automatic stacking device of a packaging machine according to claim 1, characterized in that: Multiple sets of pulleys (4310) are installed in an array in the mutually adjacent mounting grooves of the two lateral clamping plates (439). When the two sides of the laminated product are leveled by the lateral clamping plates (439), the pulleys (4310) are used to reduce friction to prevent the product from being obstructed too much and thus restricted in transportation.

6. The automatic stacking device of a packaging machine according to claim 4, characterized in that: The first conveyor belt (44) is provided with a plurality of elastic friction blocks (47) on the belt surface near the two front push plates (42). After the front push plates (42) are separated from the laminated products, the elastic friction blocks (47) are used to provide sufficient friction with the laminated products so that the first conveyor belt (44) continues to rotate to allow the front push plates (42) to rotate into place.

7. The automatic stacking device of a packaging machine according to claim 6, characterized in that: The heights of the first conveyor belt (44) and the second conveyor belt (46) in the vertical direction are lower than the height of the chain conveyor mechanism (2) in the vertical direction.

8. The automatic stacking device of a packaging machine according to claim 1, characterized in that: The chain conveying mechanism (2) is provided with a plurality of push blocks (21) arranged in an array with equal spacing, and the push blocks (21) are used to push the product toward the discharge end of the chain conveying mechanism (2).

Images