A sealing device for agricultural product packaging

Abstract

This utility model relates to the field of sealing equipment technology and discloses a sealing device for agricultural product packaging, including a base, a conveying section and a sealing box installed on the base, a sealing mechanism installed on the sealing box, and the sealing mechanism located above the conveying section. It also includes two symmetrically distributed guide plates, each guide plate having a straight plate and an inclined plate. The bottom of the straight plate and the top of the inclined plate are fixedly connected by a connecting plate. The top of the straight plate extends towards the sealing mechanism, and a "U"-shaped guide channel is formed between the two guide plates. Both guide plates are installed on the base via an adjustment mechanism. This utility model, by installing two symmetrically distributed guide plates on the base, each guide plate having a straight plate and an inclined plate, forming a "U"-shaped guide channel, can guide the top of the packaging bag into the entrance of the sealing mechanism, facilitating sealing and improving the usage effect.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing equipment, and particularly relates to a sealing device for agricultural product packaging. Background Technique

[0002] Agricultural products refer to various animal and plant products and their primary processed products obtained during the agricultural production process. They are the main source of human food and an important part of industrial raw materials. There are many types of agricultural products, including but not limited to grains, vegetables, fruits, meats, dairy products, eggs, fish, and seafood, etc. Packaging of agricultural products is the key to ensuring the freshness, anti-pollution, and convenient storage and transportation of agricultural products. Commonly used packaging materials such as plastics, composite films, and aluminum foils are used for packaging. After packaging, the packaging bags need to be sealed. Commonly used sealing equipment includes sewing sealing machines, heat-sealing type sealing equipment, ultrasonic sealing equipment, pressure-sensitive sealing equipment, vacuum sealing equipment, etc. Heat-sealing type sealing equipment is the most commonly used, especially vertical continuous sealing machines, where the sealing part is vertically arranged and the packaging bags are conveyed upright.

[0003] The basic structure of a continuous sealing machine includes: a conveying system: composed of a conveyor belt (or conveying rollers), responsible for uniformly feeding the packaging bags to be sealed into the sealing area at a speed that can be adjusted (usually 0 - 15 meters per minute) to ensure uniform sealing; a sealing mechanism: including a heating module (such as heating strips, heating wheels) and a pressure device (such as a silicone pressure wheel). The heating module melts the bag mouth material, and the pressure device presses and fits synchronously to form a sealing line; a temperature control system: precisely controls the heating temperature (generally adjustable from 50 - 300 °C) to adapt to different materials (such as PE, PP, composite films, etc.) to avoid overheating and charring or insufficient temperature resulting in insecure sealing; a speed regulation and positioning device: can adjust the conveying speed according to the specifications of the packaging bags, and some equipment has photoelectric positioning to ensure accurate sealing positions (especially for packaging bags printed with patterns).

[0004] For existing vertical continuous sealing machines, baffles are usually installed on both sides of the conveyor belt to prevent the packaging bags from skewing or slipping off the conveyor belt, resulting in abnormal operation. However, the existing guide plates are generally straight plate-shaped and usually only have the effects of preventing dropping and certain guiding, and it is inconvenient to guide the top of the packaging bag into the sealing mechanism, affecting the sealing effect. Content of the Utility Model

[0005] The utility model provides a sealing device for agricultural product packaging. By setting guide plates on the base, a "convex"-shaped guiding channel is formed between the guide plates, which can guide the packaging bags and at the same time guide the top of the packaging bags to the entrance of the sealing mechanism, solving the problem mentioned in the above background technique that it is inconvenient to guide the top of the packaging bags to the entrance of the sealing mechanism.

[0006] The utility model provides the following technical solutions:

[0007] A sealing device for agricultural product packaging includes a base, on which a conveying section and a sealing box are mounted. A sealing mechanism is mounted on the sealing box and is located above the conveying section. The device also includes two symmetrically distributed guide plates, each guide plate having a straight plate and an inclined plate. The bottom of the straight plate and the top of the inclined plate are fixedly connected by a connecting plate. The top of the straight plate extends toward the sealing mechanism. A U-shaped guide channel is formed between the two guide plates. Both guide plates are mounted on the base via an adjustment mechanism.

[0008] As a preferred embodiment of this utility model, a guide plate is fixedly connected to one end of the guide plate, and the guide plate is located at the input end of the conveying section.

[0009] As a preferred embodiment of this utility model, the guide plate has an arc-shaped structure.

[0010] As a preferred embodiment of this utility model, the guide plate has a flat plate structure.

[0011] As a preferred technical solution of this utility model, the adjustment mechanism includes at least two screws fixedly connected to the outside of the guide plate. The base has adjustment plates connected to both sides, and the adjustment plates have through holes. Nuts are threaded to both ends of the screws passing through the through holes, and the nuts abut against both sides of the adjustment plates. When the screws are adjusted, the two guide plates move closer to or further away from each other.

[0012] As a preferred technical solution of this utility model, a fixing plate is fixedly connected to both sides of the base, a through groove is opened on the adjusting plate, and at least two first bolts are installed on the adjusting plate. The end of the first bolt passing through the through groove is threadedly connected to the fixing plate.

[0013] As a preferred embodiment of this utility model, the through groove extends along the long side of the adjusting plate.

[0014] As a preferred embodiment of this utility model, the conveying unit includes a conveyor frame, on which a conveyor belt is rotatably connected, and the conveying direction of the conveyor belt is parallel to the sealing direction of the sealing mechanism.

[0015] As a preferred embodiment of this utility model, the bottom of the conveyor frame is fixedly connected to a bracket, and the bracket is detachably connected to the base.

[0016] As a preferred technical solution of this utility model, the bottom of both sides of the sealing box is fixedly connected to a support plate, and a fixing frame is fixedly connected to one side of the base. The support plate is provided with a long groove, and a second bolt is connected to the fixing frame. The end of the second bolt that passes through the long groove is threaded with a nut.

[0017] Compared with the prior art, the utility model provides a sealing device for agricultural product packaging, which has the following beneficial effects:

[0018] 1. In this sealing device for agricultural product packaging, two symmetrically distributed guide plates are installed on the base. The guide plates have straight plates and inclined plates, and a "convex"-shaped guide channel is formed between them, which can guide the top of the packaging bag into the entrance of the sealing mechanism, facilitating the sealing thereof and improving the use effect;

[0019] 2. In this sealing device for agricultural product packaging, the guide plates are installed on the base by an adjusting mechanism. Not only can the distance between the two guide plates be adjusted to be suitable for guiding packaging bags containing different amounts, but also the height of the guide plates on the conveying part can be adjusted to facilitate guiding packaging bags of different heights, improving the use effect.

[0020] For the parts not involved in this device, they are the same as the prior art or can be realized by the prior art. The utility model installs two symmetrically distributed guide plates on the base. The guide plates have straight plates and inclined plates, and a "convex"-shaped guide channel is formed between them, which can guide the top of the packaging bag into the entrance of the sealing mechanism, facilitating the sealing thereof and improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, the elements or parts are not necessarily drawn according to the actual ratio.

[0022] Figure 1 Schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0023] Figure 2 Schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0024] Figure 3 Schematic diagram of the three-dimensional structure of the guide plate of the utility model Figure 1 ;

[0025] Figure 4 Schematic diagram of the three-dimensional structure of the guide plate of the utility model Figure 2 。

[0026] In the figure: 1. Base; 101. Fixed frame; 2. Conveyor frame; 201. Conveyor belt; 202. Support; 3. Sealing box; 301. Support plate; 4. Sealing mechanism; 5. Guide plate; 501. Straight plate; 502. Inclined plate; 503. Guide plate; 504. Screw; 6. Adjusting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] Embodiment:

[0029] Refer to Figures 1-4 , a sealing device for agricultural product packaging, including a base 1, a conveying part and a sealing box 3 are installed on the base 1, a sealing mechanism 4 is installed on the sealing box 3, the sealing mechanism 4 includes a heating module and a pressure device, the heating module melts the bag mouth material, and the pressure device presses and combines synchronously to form a sealing line. A temperature control system is installed in the sealing box 3 to accurately control the heating temperature (generally adjustable from 50 to 300 °C). And the sealing mechanism 4 is located above the conveying part. Here, support plates 301 are fixedly connected to the bottoms on both sides of the sealing box 3, fixing frames 101 are fixedly connected to both ends on one side of the base 1, long slots are opened on the support plates 301, a second bolt is connected to the fixing frames 101, and a nut is threadedly connected to one end of the second bolt passing through the long slot. During use, by loosening the second bolt, the distance between the sealing mechanism 4 at the bottom of the sealing box 3 and the conveying part can be adjusted, which is applicable to sealing packaging bags of different heights and improves the scope of use. It also includes two symmetrically distributed guide plates 5. The guide plates 5 extend along the conveying direction of the conveying part. The guide plates 5 have a straight plate 501 and an inclined plate 502. The bottom of the straight plate 501 and the top of the inclined plate 502 are fixedly connected by a connecting plate. The angle between the inclined plate 502 and the straight plate 501 is 0 - 90 degrees, preferably 25 degrees. The top of the straight plate 501 extends towards the sealing mechanism 4 to facilitate guiding the top of the packaging bag. A "convex" - shaped guiding channel is formed between the two guide plates 5, and the inlet of the sealing mechanism 4 is in the guiding channel. That is, the packaging bag first enters the guiding channel under the conveying of the conveying part, and after moving a certain distance along the guiding channel, it can enter the inlet of the sealing mechanism 4, reducing the situation of skewing at the mouth of the packaging bag and improving the sealing effect. And the two guide plates 5 are both installed on the base 1 through an adjusting mechanism. Through the adjusting mechanism, not only the distance between the two guide plates 5 can be adjusted to be applicable to guiding packaging bags filled with different amounts, but also the height of the guide plates 5 on the conveying part can be adjusted to facilitate guiding packaging bags of different heights and improve the use effect.

[0030] In use, two symmetrically distributed guide plates 5 are installed on the base 1. The guide plate 5 has a straight plate 501 and an inclined plate 502, and a "convex"-shaped guide channel is formed therebetween, which can guide the top of the packaging bag into the entrance of the sealing mechanism 4, facilitating its sealing and improving the use effect.

[0031] Refer to Figure 3 and Figure 4 , a guiding plate 503 is fixedly connected to one end of the guide plate 5, and the guiding plate 503 is located at the input end of the conveying part. In use, by fixedly connecting the guiding plate 503 to the guide plate 5, it can guide the packaging bag when it enters the guide channel, improving the use effect.

[0032] Refer to Figure 3 and Figure 4 , the guiding plate 503 has an arc-shaped structure, making the entrance of the guide channel in a trumpet shape, facilitating the packaging bag to enter the guide channel.

[0033] According to the actual situation and usage requirements, the guiding plate 503 can also be designed as a flat plate structure, which has a simple structure and is convenient to use.

[0034] Refer to Figures 1-3 , here, the adjusting mechanism includes at least two screw rods 504. The axes of the two screw rods 504 are parallel to each other. They are fixedly connected to the outside of the guide plate 5. Adjusting plates 6 are connected to both sides of the base 1. Through holes are formed in the adjusting plates 6. Nuts are threadedly connected to both ends of the screw rods 504 passing through the through holes, and the nuts are abutted against both sides of the adjusting plates 6. When adjusting the screw rods 504, the two guide plates 5 approach or move away from each other. In use, by fixedly connecting the screw rods 504 to the outer wall of the guide plate 5, after loosening the nuts, the guide plate 5 approaches or moves away from the adjusting plate 6, realizing the adjustment of the distance between the two guide plates 5, facilitating the guiding and limiting of packaging bags containing different amounts of materials, and improving the use effect.

[0035] Refer to Figures 1-3 , fixing plates are fixedly connected to both sides of the base 1. Through slots are formed in the adjusting plates 6. At least two first bolts are installed on the adjusting plates 6, preferably two first bolts. One end of the first bolts passing through the through slots is threadedly connected to the fixing plates. And the through slots extend along the long side of the adjusting plates 6. In use, by forming through slots in the adjusting plates 6 and fixedly connecting them to the fixing plates with the first bolts, the height of the adjusting plates 6 can be adjusted, and then the height of the guide plates 5 can be adjusted, realizing the guiding of packaging bags of different heights.

[0036] Refer to Figure 1 and Figure 2Here, the conveying unit includes a conveyor frame 2, on which a conveyor belt 201 is rotatably connected. The conveying direction of the conveyor belt 201 is parallel to the sealing direction of the sealing mechanism 4. A motor for driving the conveyor belt 201 to rotate is fixedly connected inside the conveyor frame 2. A bracket 202 is fixedly connected to the bottom of the conveyor frame 2. The bracket 202 can be detached and connected to the base 1. Here, we preferably fix the bracket 202 to the base 1 with screws, which is convenient to install and remove and has reliable fixation.

[0037] Components not described in detail in this article are existing technologies.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sealing device for agricultural product packaging, comprising a base (1), on which a conveying section and a sealing box (3) are mounted, and on which a sealing mechanism (4) is mounted, wherein the sealing mechanism (4) is located above the conveying section, characterized in that, It also includes two symmetrically distributed guide plates (5). Among them, the guide plate (5) has a straight plate (501) and an inclined plate (502). The bottom of the straight plate (501) and the top of the inclined plate (502) are fixedly connected by a connecting plate. The top of the straight plate (501) extends towards the sealing mechanism (4). A "convex"-shaped guide channel is formed between the two guide plates (5), and both of the two guide plates (5) are installed on the base (1) through an adjusting mechanism.

2. The sealing device for agricultural product packaging according to claim 1, characterized in that, One end of the guide plate (5) is fixedly connected with a guiding plate (503), and the guiding plate (503) is located at the input end of the conveying part.

3. A sealing device for agricultural product packaging according to claim 2, characterized in that, The guiding plate (503) has an arc-shaped structure.

4. A sealing device for agricultural product packaging according to claim 2, characterized in that, The guiding plate (503) has a flat plate structure.

5. A sealing device for agricultural product packaging according to claim 1, characterized in that, The adjusting mechanism includes at least two screw rods (504), which are fixedly connected to the outside of the guide plate (5). Among them, both sides of the base (1) are connected with adjusting plates (6). Through holes are opened on the adjusting plates (6). Nuts are threadedly connected to both ends of the screw rod (504) passing through the through holes, and the nuts are abutted against both sides of the adjusting plates (6). When the screw rod (504) is adjusted, the two guide plates (5) approach or move away from each other.

6. A sealing device for agricultural product packaging according to claim 5, characterized in that, Both sides of the base (1) are fixedly connected with fixing plates. Through slots are opened on the adjusting plates (6). At least two first bolts are installed on the adjusting plates (6). One end of the first bolt passing through the through slot is threadedly connected to the fixing plate.

7. A sealing device for agricultural product packaging according to claim 6, characterized in that, The through slot extends along the long side of the adjusting plate (6).

8. A sealing device for agricultural product packaging according to claim 1, characterized in that, The conveying part includes a conveying frame (2). A conveyor belt (201) is rotatably connected to the conveying frame (2), and the conveying direction of the conveyor belt (201) is parallel to the sealing direction of the sealing mechanism (4).

9. A sealing device for agricultural product packaging according to claim 8, characterized in that, The bottom of the conveying frame (2) is fixedly connected with a bracket (202), and the bracket (202) is detachably connected to the base (1).

10. A sealing device for agricultural product packaging according to claim 1, characterized in that, Both sides of the bottom of the sealing box (3) are fixedly connected with support plates (301). One side of the base (1) is fixedly connected with a fixing frame (101). Long slots are opened on the support plates (301). A second bolt is connected to the fixing frame (101). One end of the second bolt passing through the long slot is threadedly connected with a nut.

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