A packaging device

Abstract

A packaging device comprises a frame, on which a product conveying component, an assembly conveying component, a sheet material supply component, a conveying component and a folding and wrapping component are arranged, the assembly conveying component comprises a main conveying component; the sheet material supply component outputs sheets one by one, a first stopper is arranged on the main conveying belt, and the conveying component conveys the product on the product conveying component to the main conveying belt; the folding and wrapping component is provided with a folding conveying belt, the folding and wrapping component also comprises a folding assembly and a clamping assembly, the clamping assembly comprises two rotating units, a baffle is arranged on the rotating unit, and the rotating unit and the folding conveying belt operate synchronously; the folding assembly comprises a bending unit, a glue spraying unit and a pressing unit which are arranged in sequence, the bending unit folds the sheets on both sides of the product toward the upper part of the product, the glue spraying unit comprises a glue spraying valve; the pressing unit shapes and maintains the part after glue spraying. The present invention realizes the automation of the product packaging and conveying process, and improves the packaging efficiency and conveying stability.

Description

Technical Field

[0001] The invention relates to a packaging device for automatically packaging array products by using sheets. Background Art

[0002] Sheet-based packaging is very common in the beverage and dairy industries. For example, the U.S. patent application entitled Multipack for flanged primary containers with publication number US4703856A published on November 3, 1987, can better highlight product features and increase the eye-catching degree of packaging. The bottom part of the product is exposed outside the entire packaging, which makes it appear intuitive and real.

[0003] This type of packaging usually places the sheet on a conveyor belt and then places the product upside down on the sheet. Finally, the other parts of the sheet are bent and flipped to the bottom of the product until the bottom of the product passes through the through hole on the sheet used to accommodate the product. After the sheet is bonded, it forms a whole with the product, undergoes conveying and flipping operations, and finally placed upright. The disadvantages of this packaging technology are very obvious. It is well known that the flipping operation is a factor that limits high-speed packaging and is also the reason for scratches and wear on the product surface. The flipping operation is a technical problem of low production efficiency in the existing technology. Summary of the invention

[0004] The object of the present invention is to provide a packaging device, which realizes the automation of the product packaging and conveying process, and improves the packaging efficiency and conveying stability.

[0005] The present invention provides a packaging device, and its technical solution to solve the technical problem includes a frame, the frame is provided with a product conveying component, an assembly conveying component, a sheet material supply component, a handling component and a folding and wrapping component, the product conveying component is located on one side of the assembly conveying component, the product conveying component and the assembly conveying component are arranged in parallel and the two have the same conveying direction, the assembly conveying component includes a main conveying component, the main conveying component includes a second support plate and a main conveying belt, the number of the second support plates is two and they are installed on the frame in parallel, the main conveying belt is located between the two second support plates, the upper end surfaces of the two second support plates are located in the same plane to form a supporting surface, and the supporting surface is higher than the conveying surface of the main conveying belt; the sheet material supply component is installed just above one end of the main conveying component, the sheet material supply component outputs the sheets one by one and lays them flat on the supporting surface, the main conveying belt is provided with a first stopper that promotes the sheet material transportation and is evenly spaced, the handling component is installed on the assembly conveying component and above the product conveying component, the conveying component conveys the product on the product conveying component to the main conveying belt and places it in the sheet; the folding and wrapping component is located at the rear side of the assembly conveying component, the folding and wrapping component is provided with a folding conveying belt docked with the main conveying component, the folding and wrapping component also includes a folding component and a clamping component, the clamping component includes two rotating units located on both sides of the folding conveying belt, each rotating unit is provided with a baffle that performs rotating motion in a fixed posture, the rotating unit and the folding conveying belt operate synchronously, and the movement range of the baffle is located above the conveying surface of the folding conveying belt; the folding component includes a bending unit, a spraying unit, and a pressing unit that are sequentially arranged along the conveying direction of the folding conveying belt, the bending unit is located at the input end of the clamping component and folds the sheets located on both sides of the product toward the upper part of the product, the spraying unit includes a spraying valve for spraying glue on the sheets bent by the bending unit; the pressing unit is used to press the sprayed part to shape and maintain it.

[0006] Preferably, the assembled conveying component also includes an auxiliary conveying component and a first support plate; the first support plate is installed on both sides of the main conveying component, the auxiliary conveying component is installed between the first support plate and the main conveying component, the auxiliary conveying component includes an auxiliary conveying belt and a second stopper, the upper end surface of the first support plate, the conveying surface and the supporting surface of the auxiliary conveying belt are in the same plane, the second stoppers are distributed on the auxiliary conveying belt at equal intervals, and the positions of the second stoppers and the first stoppers are distributed one-to-one; the upper ends of the first stopper and the second stopper both protrude from the supporting surface.

[0007] Preferably, the frame is provided with a side plate installed at the outer edge of the first supporting plate, and the upper end of the side plate is higher than the supporting surface.

[0008] Preferably, the folding component also includes a supporting frame, the bending unit, the glue spraying unit, and the pressing unit are sequentially mounted on the supporting frame, the supporting frame is provided with a first motor driving the first synchronous belt to move and a second motor driving the second synchronous belt to move; the bending unit includes a first synchronous belt and a first guide rod, the first synchronous belt is located directly above the conveying area of ​​the folding conveyor belt and is arranged parallel to the folding conveyor belt, the number of the first guide rods is two and they are arranged on both sides of the folding conveyor belt, the first guide rod includes a front end portion, a middle portion and a rear end portion connected in sequence along the conveying direction of the main conveying component, the first guide rod gradually approaches the folding conveyor belt from the front end portion to the rear end portion, the middle portion is located at the upper part of the conveying surface of the folding conveyor belt and is arranged horizontally, the front end portion is inclined and its end head extends to the lower part of the conveying surface, the rear end portion is inclined and its end head is located higher than the middle portion; the glue spraying unit includes a glue spraying valve, a second guide rod, and a third guide rod, the glue spraying valve is located directly above the folding conveyor belt, the first The second guide rod and the third guide rod are both arranged above the folding conveyor belt and are distributed on both sides of the folding conveyor belt. The second guide rod and the third guide rod are in the same plane and are parallel to the conveying surface of the main conveyor belt. One end of the second guide rod extends in the direction away from the folding conveyor belt, and the other end of the second guide rod extends above the conveying surface of the main conveyor belt; one end of the third guide rod extends in the direction away from the folding conveyor belt, and the other end of the third guide rod extends above the conveying surface; the two ends of the second guide rod and the third guide rod are staggered with each other in the horizontal direction; the clamping unit includes a second synchronous belt and a fourth guide rod, the second synchronous belt is located directly above the folding conveyor belt and is arranged parallel to the folding conveyor belt, the first synchronous belt and the second synchronous belt move synchronously with the folding conveyor belt, the fourth guide rod is located on both sides of the second synchronous belt and is parallel to the conveying direction of the folding conveyor belt, and one end of the fourth guide rod is provided with a bending section inclined upward; the first guide rod is located at the input end of the clamping component and the height of its rear end in the vertical direction is higher than the baffle.

[0009] Preferably, mounting seats are provided on both sides of the support frame, a slide groove is opened on the mounting seats, a support rod installed in the slide groove is provided on the second guide rod, a support rod installed in the slide groove is provided on the third guide rod, mounting seats are provided on both sides of the folding conveyor belt, a slide groove is opened on the mounting seats, a support rod is connected to the first guide rod, and the support rod is installed in the slide groove.

[0010] Preferably, each of the rotating components is provided with an upper synchronous belt and a lower synchronous belt which are spaced apart and distributed in parallel in the vertical direction, the upper synchronous belt is located on the upper part of the lower synchronous belt and the two rotate synchronously in the horizontal plane, the upper synchronous belt and the lower synchronous belt have the same length and their ends are staggered from each other in the horizontal direction, the upper synchronous belt is evenly distributed with a first shaft sleeve, the lower synchronous belt is evenly distributed with a second shaft sleeve, the projections of the first shaft sleeve and the second shaft sleeve on the horizontal plane are spaced apart, a rotating shaft is respectively provided in the first shaft sleeve and the second shaft sleeve, the two rotating shafts are connected by a connecting rod, a baffle in a horizontal posture is connected to the rotating shaft in each of the first shaft sleeves, and the baffle rotates in a fixed posture in the horizontal plane with the upper synchronous belt and the lower synchronous belt.

[0011] Preferably, the transport components are provided in plurality and are distributed at equal intervals along the conveying direction of the product conveying component.

[0012] Preferably, the conveying motions of the product conveying component, the main conveying component, the auxiliary conveying component and the folding conveyor belt are synchronous motions.

[0013] In summary, the technical solution of the present invention has at least the following beneficial effects:

[0014] 1. The conveying surface of the main conveyor belt and the supporting surface and the conveying surface of the auxiliary conveyor belt are set to have a certain height difference, which reduces the flipping action during the packaging process, can effectively improve the packaging efficiency, and facilitate the synchronous and stable transportation of products and sheets;

[0015] 2. Through the design of the folding components, the sheet can be automatically wrapped on the product through bending, gluing and pressing from a state where it is separated from the product, thus realizing the automated production of sheet wrapping;

[0016] 3. Through the design of the clamping parts, the synchronous operation and maintenance of the sheet state can be achieved, reducing the wear of the sheet and improving the packaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is the overall structure diagram of the present invention;

[0019] Figure 2 It is a structural diagram of the assembly conveying component of the present invention;

[0020] Figure 3The present invention Figure 2 Middle partial enlarged picture;

[0021] Figure 4 It is a structural diagram of the folding and wrapping component of the present invention;

[0022] Figure 5 is a top view of the folding and wrapping component of the present invention;

[0023] Figure 6 It is a schematic diagram of the working state of the folding and wrapping component of the present invention;

[0024] Figure 7 is a structural diagram of the clamping assembly of the present invention;

[0025] Figure 8 It is a front view of the folding wrapping component of the present invention.

[0026] In the figure:

[0027] 1. Product conveying components;

[0028] 2. Assembling conveying components; 21. Main conveying components; 210. First support plate; 211. Main conveying belt; 212. First stopper; 22. Auxiliary conveying components; 220. Second support plate; 221. Auxiliary conveying belt; 222. Second stopper; 23. Support surface; 24. Side plate;

[0029] 3. Sheet material supply components;

[0030] 4. Transport parts;

[0031] 5. Folding and wrapping components; 51. Support frame; 52. Baffle; 53. Glue spraying valve; 55. First synchronous belt; 56. First guide rod; 57. Second guide rod; 58. Third guide rod; 59. Second synchronous belt; 510. Fourth guide rod; 511. Upper synchronous belt; 512. Lower synchronous belt; 513. First shaft sleeve; 514. Second shaft sleeve. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] The present invention provides a packaging device, such as Figure 1-8 As shown, it includes a frame on which a product conveying component 1, an assembly conveying component 2, a sheet supplying component 3, a transporting component 4 and a folding and wrapping component 5 are arranged.

[0034] The sheet supply component 3 is used to output the horizontally arranged sheets one by one and place them on the assembly conveying component 2. The sheet supply component 3 consists of two parts, one part is a rotating suction structure, which can be seen in the patent document CN201120519710.7; the other part is a mechanism for pushing the sheet composed of a synchronous belt; the sheet supply component 3 lays the sheet flat on the assembly conveying component 2, wherein the sheet is provided with a plurality of through holes for passing the product, and after the sheet is placed on the supporting surface 23 of the assembly conveying component 2, the product on the product conveying component 1 will be transported into the sheet by the transport component 4, and the product passes through the through holes on the sheet, and its bottom directly contacts the main conveying belt 211 and is supported by the main conveying belt 211.

[0035] The product conveying component 1 is located on one side of the assembly conveying component 2. The product conveying component 1 is only used to transport products. The product conveying component 1 is parallel to the assembly conveying component 2 and the conveying direction of the two is the same. The transporting component 4 is installed above the assembly conveying component 2 and the product conveying component 1 and can move between the two. The transporting component 4 transports the products on the product conveying component 1 to the main conveying component 21 for transportation and packaging (the number of transporting components 4 is provided in plurality, and multiple groups of array-distributed products that need to be packaged can be transferred at the same time).

[0036] The assembled conveying component 2 is used for synchronously conveying products and sheets, and includes a main conveying component 21, a first support plate 210, a second support plate 220, and an auxiliary conveying component 22, wherein the product is placed on the main conveying component 21 for conveying, and the auxiliary conveying component 22 is located on one side of the main conveying component 21 to assist in conveying the sheets, thereby realizing synchronous and stable conveying of the product and the sheets.

[0037] The main conveying component 21 is installed between the two first support plates 210. The main conveying component 21 includes a main conveying belt 211 and a second support plate 220. The second support plate 220 is arranged on both sides of the main conveying belt 211. The first support plate 210 and the second support plate 220 are parallel to each other and the upper end surfaces of the two are in the same plane and form a support surface 23, wherein the support surface 23 is parallel to the conveying surface of the main conveying belt 211, and the height of the support surface 23 is higher than the conveying surface of the main conveying belt 211 (the two have a height difference). When conveying, the product is placed on The products are transported on the main conveyor belt 211. The number of the main conveyor belts 211 in the present application is set according to the characteristics of the conveying object, which is the number of arrangements of the conveying object. For example, if the conveying object is arranged in a 2*2 matrix, two main conveyor belts 211 are set. If it is a 2*3 matrix arrangement, two main conveyor belts are also set. If it is a 3*4 matrix arrangement, the number of main conveyor belts 211 is three, that is, the number of main conveyor belts 211 is the smallest value among the number of rows or columns of the products arranged in the matrix; this can improve the conveying capacity of the main conveying component 21. During transportation, the conveying objects include products and sheets (sheet structures used to package products, and the sheets are provided with through holes for passing products), wherein the products are placed on the main conveyor belt 211, and the sheets are placed on the supporting surface 23. The products pass through the through holes on the sheets. During transportation, the products and the sheets move together. The main conveyor belt 211 is provided with first stops 212 distributed at equal intervals, and the upper ends of the first stops 212 protrude from the supporting surface 23. During the conveying process, the first stops 212 (by pushing the sheets) can assist the movement of the conveying objects (including products and sheets).

[0038] An auxiliary conveying component 22 is provided in the area before the product and the sheet enter the working area of ​​the folding and wrapping component 5. The auxiliary conveying component 22 is installed between the first support plate 210 and the main conveying component 21. The auxiliary conveying component 22 includes an auxiliary conveying belt 221 and a second stopper 222. The auxiliary conveying belt 221 is arranged parallel to the main conveying belt 211, and the conveying surface and the supporting surface 23 are in the same plane. The second stoppers 222 are evenly spaced on the auxiliary conveying belt 221, wherein the positions of the second stoppers 222 and the first stoppers 212 are distributed one by one. In this way, during the conveying process, through the action of the auxiliary conveying belt 221, the first stopper 212 and the second stopper 222, the sheet can be pushed at multiple points at the same time, so that the conveying movement is more stable and the problem of affecting the product spacing is avoided.

[0039] The folding and wrapping component 5 is located at the rear side of the assembly conveying component 2. The folding and wrapping component 5 is provided with a folding conveyor belt connected to the main conveying component 21. The above-mentioned products will enter the folding conveyor belt for further conveying. In actual use, the folding conveyor belt can be provided with a separate conveyor belt, or the conveying area of ​​the main conveyor belt 211 can be extended to the end of the folding and wrapping component 5.

[0040] The folding and wrapping component 5 is used to bend the two sides of the horizontally placed sheet mentioned above toward the upper part of the product to form a wrapping effect on the product, and includes a folding component and a clamping component. The operating areas of the folding component and the clamping component are both located above the folding conveyor belt; wherein the folding component is used to bend the sheet in the bending direction guided by the crease (pre-processed), and includes a bending unit, a glue spraying unit, a pressing unit, and a support frame 51; the bending unit, the glue spraying unit, and the pressing unit are sequentially installed on the support frame 51 along the conveying direction of the folding conveyor belt, wherein the bending unit includes a first synchronous belt 55 and a first guide rod 56, the first synchronous belt 55 is located directly above the conveying surface of the main conveying component 21 and is parallel to the main conveying component 21, the first synchronous belt 55 and the main conveying component 21 run synchronously, the first synchronous belt 55 is pressed against the upper end of the product sheet to ensure stable conveying of the product, and one is respectively provided on both sides of the main conveying component 21. The first guide rod 56 is divided into three sections, namely a front end portion, a middle portion and a rear end portion which are sequentially arranged along the conveying direction of the main conveying component. The first guide rod 56 gradually approaches the main conveying component 21 from the front end portion to the rear end portion, that is, the front end portion is farthest from the main conveying component 21, and the rear end portion is closest to the main conveying component 21; the middle portion is located at the upper part of the conveying surface of the main conveying component 21 and is arranged horizontally, the front end portion is inclined and its end head extends to the lower part of the conveying surface of the main conveying component 21, and the rear end portion is inclined and its end head, i.e., one of the ends of the first guide rod 56, is located higher than the middle portion; in this way, the spatial structure of the first guide rod 56 can guide and bend the sheet on the main conveying component 21 as the main conveying component 21 is conveyed, so that the two sides of the sheet in a horizontal state are bent in the direction close to the two sides of the product, and finally guided to a vertical state.The glue spraying unit further bends the sheet in the vertical state and performs glue spraying and shaping at the same time, wherein the glue spraying unit includes a glue spraying valve 53, a second guide rod 57, and a third guide rod 58, wherein the glue spraying valve 53 is located directly above the main conveying component 21, the second guide rod 57 and the third guide rod 58 are both arranged above the main conveying component 21 and are distributed on both sides of the main conveying component 21, wherein the second guide rod 57 and the third guide rod 58 are in the same plane and are parallel to the conveying surface of the main conveying belt 211; wherein one end of the second guide rod 57 extends in a direction away from the main conveying component 21, and the other end of the second guide rod 57 extends in a direction away from the main conveying component 21, and ... It extends to above the conveying surface of the main conveyor belt 211; one end of the third guide rod 58 extends in a direction away from the main conveying component 21, and the other end of the third guide rod 58 extends to above the conveying surface; through the design of the second guide rod 57 and the third guide rod 58, the two sides of the sheet are guided respectively, and the vertical parts on both sides of the above-mentioned sheet are guided and further bent so that the sheet is attached to the upper end of the product; in addition, the two ends of the second guide rod 57 and the third guide rod 58 are staggered from each other in the horizontal direction; in this way, when the sheet is finally shaped, one side of the sheet will cover the other side, forming a wrapping effect.

[0041] The pressing unit further presses the sheet material that forms the wrapping effect, so that the parts of the sheet material with hot melt adhesive are tightly bonded; it includes a second synchronous belt 59 and a fourth guide rod 510. The second synchronous belt 59 is located directly above the conveying surface of the main conveying component 21 and is arranged parallel to the main conveying component 21. The second synchronous belt 59 moves synchronously with the main conveying component 21. The second synchronous belt 59 directly contacts the sheet material and exerts a certain pressure on the sheet material, so that the parts of the sheet material with hot melt adhesive are tightly bonded; the fourth guide rod 510 is located on both sides of the second synchronous belt 59 and is parallel to the conveying direction of the main conveying component 21. One end of the fourth guide rod 510 is provided with a bending section inclined upward. The fourth guide rod 510 can further guide and bend the protruding parts of the sheet material, so that the sheet material can be better attached to the product and achieve a better wrapping effect.

[0042] In the present invention, the clamping component includes two rotating components located on both sides of the main conveying component 21. The specific structure can be referred to patent CN201110249607.X; specifically, each of the rotating components is provided with an upper synchronous belt 511 and a lower synchronous belt 512 spaced apart in the vertical direction and distributed in parallel, the upper synchronous belt 511 is located on the upper part of the lower synchronous belt 512 and the two rotate synchronously in the horizontal plane, the upper synchronous belt 511 and the lower synchronous belt 512 are of the same length and the ends of the two are staggered in the horizontal direction, and the upper synchronous belt The first sleeves 513 are evenly distributed on the upper and lower synchronous belts 511, and the second sleeves 514 are evenly distributed on the lower synchronous belt 512. The projections of the first sleeves 513 and the second sleeves 514 on the horizontal plane are spaced apart. A rotating shaft is respectively provided in the first sleeves 513 and the second sleeves 514. The two rotating shafts are connected by a connecting rod. A horizontal baffle 52 is connected to the rotating shaft in each of the first sleeves 513. The baffle 52 rotates in a fixed posture in the horizontal plane with the upper synchronous belt 511 and the lower synchronous belt 512. When working, the rotary assembly operates synchronously with the main conveying component 21. The movement range of the baffle 52 is located at the upper part of the conveying surface of the main conveying component 21. The working area of ​​the clamp starts from the part where the sheet is bent to form a vertical state. The clamp moves synchronously with the product. The baffle 52 is supported on the side of the sheet and is relatively stationary with the sheet during movement, so that the sheet can be restricted to maintain a vertical bending state. Such a design of limiting the sheet structure can well protect the surface pattern of the sheet. In the present invention, the first guide rod 56 is located at the input end of the clamping component and its rear end portion is higher in the vertical direction than the baffle 52. In this way, the first guide rod 56 guides both sides of the sheet from a horizontal state to a vertical state, and then can well transition to the working area of ​​the baffle 52, thereby avoiding wear caused by the joint.

[0043] In one embodiment of the present invention, one end of the second guide rod 57 has a bending section bent in a direction away from the main conveying component 21, and one end of the third guide rod 58 has a bending section bent in a direction away from the main conveying component 21, and the bending parts of the bending sections are all arc transition structures. Such a structural design can enable the guide rod to better guide the sheet and avoid wear and damage to the sheet by the guide rod.

[0044] One of the embodiments of the installation structure of the first guide rod 56, the second guide rod 57, and the third guide rod 58 in the present invention is: for the installation of the first guide rod 56: the main conveying component 21 includes a support plate and a main conveying belt 211; the number of the support plates is two and they are installed on the frame in parallel with each other, the main conveying belt 211 is installed between the two support plates, and the outer sides of the two support plates are respectively provided with mounting seats, and the mounting seats are provided with a slide groove perpendicular to the conveying direction, the first guide rod 56 is connected to a support rod, and the support rod is installed in the slide groove; similarly, the distance between the first guide rod 56 and the main conveying component 21 can be adjusted.

[0045] Regarding the installation structure of the second guide rod 57 and the third guide rod 58: mounting seats are provided on both sides of the support frame 51, and a slide groove is opened on the mounting seat, the second guide rod 57 is provided with a support rod installed in the slide groove, and the third guide rod 58 is provided with a support rod installed in the slide groove. The position of the support rod in the slide groove can adjust the distance between the main conveying component 21, and then adjust the distance between the second guide rod 57 and the third guide rod 58 and the main conveying component 21. The position of the second guide rod 57 and the third guide rod 58 can be adjusted according to actual production conditions (sheet size, length of folds on both sides of the sheet), for example, the two are symmetrically distributed; or the distance between one and the main conveying component 21 is greater than the distance between the other and the main conveying component 21, forming an asymmetric structure.

[0046] It should be noted that in the present application, the conveying movements of the product conveying component 1 , the main conveying component 21 , the auxiliary conveying component 22 and the folding conveyor belt are all synchronous movements.

[0047] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A packaging device, comprising a frame, characterized in that: The frame is provided with a product conveying component, an assembly conveying component, a sheet material supply component, a conveying component and a folding and wrapping component, the product conveying component is located on one side of the assembly conveying component, the product conveying component and the assembly conveying component are arranged in parallel and the conveying directions of the two are the same, the assembly conveying component comprises a main conveying component, the main conveying component comprises a second support plate and a main conveying belt, the number of the second support plates is two and they are installed on the frame in parallel, the main conveying belt is installed between the two second support plates, the upper end surfaces of the two second support plates are located in the same plane to form a supporting surface and the supporting surface is higher than the conveying surface of the main conveying belt; the sheet material supply component is installed just above one end of the main conveying component, the sheet material supply component outputs the sheets one by one and lays them flat on the supporting surface, the main conveying belt is provided with a first stopper that promotes the sheet material transportation and is evenly spaced, the conveying component is installed above the assembly conveying component and the product conveying component, the conveying component conveys the product on the product conveying component to the main conveying belt and places it in the sheet material;The folding and wrapping component is located at the rear side of the assembly conveying component, and the folding and wrapping component is provided with a folding conveyor belt connected to the main conveying component. The folding and wrapping component also includes a folding component and a clamping component. The clamping component includes two rotating units located on both sides of the folding conveyor belt, and each rotating unit is provided with a baffle that performs a rotating motion in a fixed posture. The rotating unit and the folding conveyor belt operate synchronously, and the movement range of the baffle is located above the conveying surface of the folding conveyor belt; the folding component includes a bending unit, a glue spraying unit, and a pressing unit that are sequentially arranged along the conveying direction of the folding conveyor belt. The bending unit is located at the input end of the clamping component and folds the sheets located on both sides of the product toward the upper part of the product. The glue spraying unit includes a glue spraying valve for spraying glue on the sheet material bent by the bending unit; the pressing unit is used to press the part after glue spraying to shape and maintain it, and the assembly conveying component also includes an auxiliary conveying component and a first support plate; the first support plate is installed on both sides of the main conveying component, and the auxiliary conveying component is installed between the first support plate and the main conveying component, and the auxiliary conveying component includes an auxiliary conveying belt and a second stopper, the upper end surface of the first support plate, the conveying surface of the auxiliary conveying belt and the supporting surface are in the same plane, the second stopper is evenly spaced on the auxiliary conveying belt, and the positions of the second stopper and the first stopper are distributed one by one; the upper ends of the first stopper and the second stopper both protrude from the support Support surface; the bending unit includes a first synchronous belt and a first guide rod, the first synchronous belt is located directly above the conveying area of ​​the folding conveyor belt and is arranged parallel to the folding conveyor belt, the number of the first guide rods is two and they are arranged on both sides of the folding conveyor belt, the first guide rod includes a front end portion, a middle portion and a rear end portion which are sequentially connected along the conveying direction of the main conveying component, the first guide rod gradually approaches the folding conveyor belt from the front end portion to the rear end portion, the middle portion is located at the upper part of the conveying surface of the folding conveyor belt and is arranged horizontally, the front end portion is inclined and its end head extends to the lower part of the conveying surface of the folding conveyor belt, the rear end portion is inclined and its end head is located higher than the middle portion; the glue spraying The unit includes a glue spraying valve, a second guide rod, and a third guide rod. The glue spraying valve is located directly above the folding conveyor belt. The second guide rod and the third guide rod are both arranged above the folding conveyor belt and are distributed on both sides of the folding conveyor belt. The second guide rod and the third guide rod are in the same plane and are parallel to the conveying surface of the main conveyor belt. One end of the second guide rod extends away from the folding conveyor belt, and the other end of the second guide rod extends above the conveying surface of the main conveyor belt; one end of the third guide rod extends away from the folding conveyor belt, and the other end of the third guide rod extends above the conveying surface of the folding conveyor belt; the two ends of the second guide rod and the third guide rod are staggered in the horizontal direction. ; 2. A packaging device according to claim 1, characterized in that: The frame is provided with a side plate installed at the outer edge of the first supporting plate, and the upper end of the side plate is higher than the supporting surface.

3. A packaging device according to claim 1, characterized in that: The folding assembly also includes a supporting frame, and the bending unit, the glue spraying unit, and the pressing unit are sequentially mounted on the supporting frame, and the pressing unit includes a second synchronous belt and a fourth guide rod, and the second synchronous belt is located directly above the folding conveyor belt and is arranged in parallel with the folding conveyor belt, and a first motor for driving the first synchronous belt to move and a second motor for driving the second synchronous belt to move are provided on the supporting frame; the first synchronous belt and the second synchronous belt move synchronously with the folding conveyor belt, and the fourth guide rod is located on both sides of the second synchronous belt and is parallel to the conveying direction of the folding conveyor belt, and one end of the fourth guide rod is provided with a bending section inclined upward; the first guide rod is located at the input end of the clamping component and the rear end thereof is higher in the vertical direction than the baffle.

4. A packaging device according to claim 3, characterized in that: Mounting seats are provided on both sides of the support frame, a slide groove is opened on the mounting seats, a support rod installed in the slide groove is provided on the second guide rod, a support rod installed in the slide groove is provided on the third guide rod, mounting seats are provided on both sides of the folding conveyor belt, a slide groove is opened on the mounting seats, a support rod is connected to the first guide rod, and the support rod is installed in the slide groove.

5. A packaging device according to claim 1, characterized in that: Each of the rotary units is provided with an upper synchronous belt and a lower synchronous belt which are spaced apart in vertical direction and distributed in parallel. The upper synchronous belt is located on the upper part of the lower synchronous belt and the two rotate synchronously in a horizontal plane. The upper synchronous belt and the lower synchronous belt have the same length and their ends are staggered in the horizontal direction. The upper synchronous belt is evenly distributed with a first shaft sleeve, and the lower synchronous belt is evenly distributed with a second shaft sleeve. The projections of the first shaft sleeve and the second shaft sleeve on the horizontal plane are spaced apart. A rotating shaft is respectively provided in the first shaft sleeve and the second shaft sleeve, and the two rotating shafts are connected by a connecting rod. A baffle in a horizontal posture is connected to the rotating shaft in each of the first shaft sleeves, and the baffle rotates in a fixed posture in a horizontal plane with the upper synchronous belt and the lower synchronous belt.

6. A packaging device according to claim 1, characterized in that: The transport components are provided in plurality and are distributed at equal intervals along the conveying direction of the product conveying component.

7. A packaging device according to claim 1, characterized in that: The conveying motions of the product conveying component, the main conveying component, the auxiliary conveying component and the folding conveyor belt are synchronous motions.

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