Self-heating food sealing equipment
By employing the knurling, gluing, and air-drying processes of self-heating food sealing equipment, the problem of insufficient structural strength in self-heating food packaging bags has been solved, enabling efficient production of high-strength sealed packaging bags and reducing production costs.
Patent Information
- Application Number
- CN202520336209.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-28
AI Technical Summary
The conventional plastic packaging bags produced by existing sealing machines cannot meet the structural strength requirements of self-heating food packaging, posing a risk of breakage and increasing production costs.
A self-heating food sealing device was designed, including a frame, a feeding assembly, a knurling assembly, a drive assembly, a gluing assembly, and a winding assembly. Through the coordinated work of these components, the packaging bag film is knurled, glued, and air-dried, thereby improving the structural strength and sealing performance of the packaging bag.
It improves the structural strength and sealing performance of self-heating food packaging bags, reduces the risk of outer packaging damage, and reduces production costs.
Smart Images

Figure CN223865214U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of self-heating food processing, and in particular to a self-heating food sealing device. Background Technology
[0002] Self-heating food is a portable, pre-processed food that uses heat generated by a chemical reaction to heat food. This type of food does not require an external heat source; simply adding an appropriate amount of water will heat the food to a suitable eating temperature in a short time. Due to its convenience and practicality, self-heating food is very popular in outdoor activities, emergency rescue, military operations, and other situations.
[0003] Because self-heating foods, in addition to pre-prepared food, also include heating packs, water bags, and other tools for heating the food, they contain more ingredients. Compared to conventional foods, self-heating foods require higher load-bearing capacity and sturdiness in their outer packaging. Packaging bags produced using commercially available sealing machines often fail to meet the performance requirements of self-heating food packaging. Therefore, it is necessary to use aluminum-plastic composite materials or other materials with higher structural strength to reduce the risk of packaging damage. This further increases the overall production cost of self-heating foods.
[0004] Based on the above existing technologies, it can be seen that the load-bearing capacity of conventional plastic packaging produced by existing sealing machines is insufficient to meet the structural strength requirements of self-heating food packaging, posing a risk of packaging damage. Utility Model Content
[0005] In view of this, the present invention aims to provide a self-heating food sealing device for producing plastic sealing bags for the outer packaging of self-heating foods, the product having the advantages of high structural strength and good sealing performance.
[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:
[0007] A self-heating food sealing device includes a frame, which is fixedly installed on a horizontal ground;
[0008] A feeding assembly is mounted on the frame and located at one end of the frame;
[0009] A knurling assembly is mounted on the frame and located at one end near the feeding assembly;
[0010] A drive assembly is mounted on the frame and located on one side of the knurling assembly;
[0011] An adhesive application assembly is mounted on the frame and located on one side of the drive assembly;
[0012] A take-up assembly is mounted on the frame and located at the end opposite to the feeding assembly.
[0013] Furthermore, the feeding assembly includes a first roller frame, which is disposed above the frame;
[0014] The second roller frame is located at the end of the frame;
[0015] Both the first roller frame and the second roller frame are rotatably equipped with packaging bag film rollers for feeding, and are also equipped with multiple tension rollers for tension adjustment.
[0016] Furthermore, the knurling assembly includes two knurling shafts, which are arranged to be parallel to each other in the horizontal direction;
[0017] A knurling wheel is fitted onto the knurling shaft and rotates synchronously with the knurling shaft.
[0018] The knurling shaft is slidably mounted on the frame in the vertical direction.
[0019] Furthermore, the drive assembly includes two drive shafts, which are arranged to be parallel to each other in the horizontal direction;
[0020] A sleeve is fitted onto the drive shaft and rotates synchronously with the drive shaft;
[0021] A drive motor is connected to the drive shaft.
[0022] Furthermore, the adhesive application assembly includes two adhesive application rollers arranged to be parallel to each other in the horizontal direction;
[0023] A funnel is positioned above the coating roller;
[0024] A hot air blower is located on the side of the coating roller away from the drive assembly.
[0025] Furthermore, both the funnel and the hot air blower are configured as two symmetrically distributed about the geometric center of the coating roller.
[0026] Furthermore, the winding assembly includes an extension bracket, which is fixedly mounted horizontally on the frame at one end opposite to the feeding assembly;
[0027] A take-up roller is rotatably mounted on the extension bracket;
[0028] A take-up motor is mounted on the extension bracket and connected to the take-up roller.
[0029] Furthermore, it also includes a clamping assembly disposed on the frame, located between the winding assembly and the adhesive application assembly.
[0030] Compared with the prior art, this utility model has the following advantages:
[0031] This invention discloses a self-heating food sealing device. A frame provides support and limits for other components. A feeding assembly mounted on the frame feeds the upper and lower films used for producing self-heating food outer packaging plastic bags into a knurling assembly. The knurling assembly presses the edges of the upper and lower films from the feeding assembly, leaving knurled patterns, which increases the contact area and improves adhesion strength and load-bearing capacity. A drive assembly mounted on one side of the gluing assembly pulls the knurled upper and lower films into the gluing assembly. The gluing assembly applies glue and dries the edges of the upper and lower films from the drive assembly. Finally, a winding assembly winds up and collects the glued and dried packaging bags for subsequent flattening, cutting, and other processes.
[0032] Secondly, by setting the feeding assembly to a structure consisting of a first roller frame, a second roller frame, and a tension roller, the feeding assembly can feed the upper and lower films that make up the front and back sides of the self-heating food packaging bag respectively. The tension roller can be used to ensure that the packaging bag film remains taut during rotation and transportation, which is beneficial to improving processing accuracy.
[0033] In addition, by setting the knurling assembly to a structure of knurling shaft and knurling wheel, the edges of the packaging film can be pressed with knurling patterns during relative movement with the knurling assembly, which helps to improve the structural strength and load-bearing capacity after gluing. Attached Figure Description
[0034] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0035] Figure 1 This is a schematic diagram of the structure of a self-heating food sealing device according to an embodiment of the present utility model;
[0036] Figure 2 This is a schematic diagram of the feeding assembly in an embodiment of the present invention;
[0037] Figure 3 This is a schematic diagram of the knurling assembly in an embodiment of the present invention;
[0038] Figure 4 This is a schematic diagram of the structure of the driving component in an embodiment of the present utility model;
[0039] Figure 5 This is a schematic diagram of the adhesive coating assembly in an embodiment of the present invention;
[0040] Figure 6 This is a schematic diagram of the winding assembly in an embodiment of the present invention.
[0041] Explanation of reference numerals in the attached figures:
[0042] 1. Frame; 2. Feeding assembly; 201. First roller frame; 202. Second roller frame; 203. Tensioning roller; 3. Knurling assembly; 301. Knurling shaft; 302. Knurling wheel; 4. Drive assembly; 401. Drive shaft; 402. Sleeve; 403. Drive motor; 5. Glue application assembly; 501. Glue application roller; 502. Funnel; 503. Hot air blower; 6. Rewinding assembly; 601. Extension bracket; 602. Rewinding roller; 603. Rewinding motor. Detailed Implementation
[0043] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort.
[0044] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0045] Taking a self-heating food sealing device described in this utility model as an example, the directional terms used in the embodiments, such as "up," "down," "left," "right," "front," and "back," are defined based on the vertical direction (also known as the height direction or the Z-direction), the horizontal direction (also known as the width direction or the Y-direction), and the front-back direction (also known as the length direction or the X-direction) of the self-heating food sealing device. "Inner" and "outer" are defined based on the outline of the corresponding components. For example, "inner" and "outer" are defined based on the outline of the self-heating food sealing device, with the side of the outline closer to the middle of the self-heating food sealing device being "inner," and vice versa.
[0046] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances. The utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0047] The following will refer to the appendix. Figure 1 To be continued Figure 6 The present invention will be described in detail with reference to the embodiments.
[0048] This embodiment relates to a self-heating food sealing device, which can produce plastic bags for the outer packaging of self-heating foods. It has high output and high efficiency, and its products have the advantages of high structural strength and good sealing performance.
[0049] In terms of overall structure, refer to Figure 1 This embodiment of a self-heating food sealing device includes a frame 1, a feeding assembly 2, a knurling assembly 3, a drive assembly 4, an adhesive application assembly 5, and a winding assembly 6. The frame 1 is fixedly installed on a horizontal surface. The feeding assembly 2 is located at one end of the frame 1, and the knurling assembly 3 is installed on the frame 1 near the feeding assembly 2. The drive assembly 4 is installed on the frame 1 and located to one side of the knurling assembly 3. The adhesive application assembly 5 is installed on the frame 1 and located next to the drive assembly 4. Therefore, the winding assembly 6 is installed on the frame 1 at the end opposite to the feeding assembly 2.
[0050] As configured above, the frame 1 provides support and limits for other components of this application. The feeding assembly 2, mounted on the frame 1, feeds the upper and lower films used for producing self-heating food outer packaging plastic seal bags into the knurling assembly 3. The knurling assembly 3 presses the edges of the upper and lower films from the feeding assembly 2 and leaves knurled patterns, which helps to increase the contact area and improve the bonding strength and load-bearing capacity. The drive assembly 4, mounted on one side of the glue coating assembly 5, pulls the knurled upper and lower films into the glue coating assembly 5. The glue coating assembly 5 applies glue and dries the edges of the upper and lower films from the drive assembly 4. Finally, the winding assembly 6 winds up and collects the glued and dried packaging bags for subsequent flattening, cutting, and other processes.
[0051] Reference Figure 1 and Figure 2The feeding assembly 2 includes a first roller frame 201, a second roller frame 202, and tension rollers 203. Packaging bag film rollers are rotatably mounted on both the first roller frame 201 and the second roller frame 202, and each roller winds up packaging bag film for forming the front and back of a self-heating food packaging bag. The two packaging bag film rollers are detachably rotatably mounted on either the first roller frame 201 or the second roller frame 202. The first roller frame 201 extends horizontally along the frame 1, and the second roller frame 202 is vertically mounted on the top of the frame 1. Multiple tension rollers 203 are rotatably mounted on both the first roller frame 201 and the second roller frame 202; by adjusting the spacing of the tension rollers 203, the packaging bag film can be kept taut.
[0052] By setting the feeding assembly 2 to a structure consisting of a first roller frame 201, a second roller frame 202, and a tension roller 203, the feeding assembly 2 can feed the upper and lower films that make up the front and back sides of the self-heating food packaging bag respectively. The tension roller 203 can be used to ensure that the packaging bag film remains taut during rotation and transportation, which is beneficial to improving processing accuracy.
[0053] Reference Figure 3 The knurling assembly 3 includes a knurling shaft 301 and knurling wheels 302. A support frame is provided on the frame 1 for mounting and limiting the knurling shafts 301. The knurling shafts 301 are rotatably mounted on the support frame and are arranged in two sets, parallel to each other vertically. A knurling wheel 302 is fitted at each end of each knurling shaft 301. The edge of the packaging film passes between the two knurling wheels 302 located on the same side of the two knurling shafts 301, and is knurled by the knurling wheels 302. Two sliders are fitted at both ends of the knurling shafts 301, and the sliders slide vertically on the frame 1 for mounting the knurling shafts 301, thereby adjusting the gap between the upper and lower knurling wheels 302.
[0054] By setting the knurling assembly 3 to a structure of knurling shaft 301 and knurling wheel 302, the edges of the packaging bag film can be pressed into knurling patterns during relative movement with the knurling assembly 3, which is beneficial to improving the structural strength and load-bearing capacity after gluing.
[0055] Reference Figure 4The drive assembly 4 includes a drive shaft 401, a sleeve 402, and a drive motor 403. The drive shaft 401 is rotatably mounted on a support frame for fixing itself. The sleeve 402 is fitted onto the drive shaft 401 and rotates synchronously with it. The drive motor 403 is a geared motor, including the motor itself and a reversing reducer connected to the motor's power output shaft. The drive motor 403 can drive the drive shaft 401 to rotate. The drive shaft 401 is arranged in two sets, arranged vertically and parallel to each other. The two layers of upper and lower packaging film, knurled by the knurling assembly 3, pass through the slit between the sleeves 402 fitted onto the drive shaft 401. The drive assembly 4 achieves its driving effect on the packaging film through the contact friction between the sleeves 402 and the packaging film.
[0056] Reference Figure 5 The adhesive coating assembly 5 includes an adhesive coating roller 501, a funnel 502, and a hot air blower 503. Two adhesive coating rollers 501 are arranged parallel to each other in a horizontal direction. Funnels 502 for dispensing adhesive are fixedly mounted above both ends of the adhesive coating rollers 501. The hot air blower 503 is located on the side of the adhesive coating rollers 501 away from the drive assembly 4. The air outlet of the hot air blower 503 is directly opposite the embossed adhesive coating position on the edge of the packaging bag film, which can accelerate drying and improve the strength and load-bearing capacity of the adhesive coating structure. Both the hot air blower 503 and the funnel 502 are arranged symmetrically about the geometric center of the adhesive coating rollers 501.
[0057] Reference Figure 6 The winding assembly 6 includes an extension bracket 601, a winding roller 602, and a winding motor 603. The extension bracket 601 is fixedly mounted horizontally on the frame 1 at one end opposite to the feeding assembly 2. Both the winding motor 603 and the winding roller 602 are mounted on the extension bracket 601. The winding roller 602 is rotatably mounted on the extension bracket 601, and the power output shaft of the winding motor 603 is connected to the winding roller 602 via a coupling. The winding motor 603 drives the winding roller 602 to rotate, thereby winding and collecting the upper and lower films of the packaging bag after knurling and gluing, facilitating subsequent cutting, packaging, and other processing steps.
[0058] Reference Figure 1 The frame 1 is also equipped with a clamping assembly, which is located between the winding assembly 6 and the gluing assembly 5. The clamping assembly can clamp and fix the packaging bag film after knurling and gluing. When the winding assembly 6 completes the winding action and needs to reload the winding roller 602, the clamping assembly can temporarily clamp the packaging bag film, thereby facilitating the installation of the winding assembly 6.
[0059] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A self-heating food sealing device, characterized in that: Includes a frame (1), which is fixed on a horizontal ground; The feeding assembly (2) is mounted on the frame (1) and located at one end of the frame (1); The knurling assembly (3) is mounted on the frame (1) and located at one end near the feeding assembly (2); A drive assembly (4) is mounted on the frame (1) and located on one side of the knurling assembly (3); The glue application assembly (5) is mounted on the frame (1) and located on one side of the drive assembly (4); The winding assembly (6) is mounted on the frame (1) at the end opposite to the feeding assembly (2).
2. The self-heating food sealing device according to claim 1, characterized in that: The feeding assembly (2) includes a first roller frame (201) disposed above the frame (1); The second roller frame (202) is disposed at the end of the frame (1); Both the first roller frame (201) and the second roller frame (202) are rotatably equipped with packaging bag film rollers for feeding, and are equipped with multiple tension rollers (203) for tension adjustment.
3. The self-heating food sealing device according to claim 1, characterized in that: The knurling assembly (3) includes two knurling shafts (301) arranged to be parallel to each other in the horizontal direction; A knurling wheel (302) is sleeved on the knurling shaft (301) and rotates synchronously with the knurling shaft (301); The knurling shaft (301) is slidably mounted on the frame (1) in the vertical direction.
4. The self-heating food sealing device according to claim 1, characterized in that: The drive assembly (4) includes two drive shafts (401) arranged to be parallel to each other in the horizontal direction; A sleeve (402) is sleeved on the drive shaft (401) and rotates synchronously with the drive shaft (401); A drive motor (403) is connected to the drive shaft (401).
5. The self-heating food sealing device according to claim 1, characterized in that: The adhesive application assembly (5) includes two adhesive application rollers (501) arranged to be parallel to each other in the horizontal direction; A funnel (502) is disposed above the coating roller (501); A hot air blower (503) is disposed on the side of the glue-applying roller (501) away from the drive assembly (4).
6. The self-heating food sealing device according to claim 5, characterized in that: The funnel (502) and the hot air blower (503) are both arranged as two symmetrically distributed about the geometric center of the coating roller (501).
7. The self-heating food sealing device according to claim 1, characterized in that: The winding assembly (6) includes an extension bracket (601), which is fixedly mounted on the frame (1) at one end opposite to the feeding assembly (2) in the horizontal direction; A take-up roller (602) is rotatably mounted on the extension bracket (601); A take-up motor (603) is mounted on the extension bracket (601) and connected to the take-up roller (602).
8. The self-heating food sealing device according to claim 1, characterized in that: It also includes a clamping assembly (7) disposed on the frame (1) between the winding assembly (6) and the adhesive application assembly (5).