Sealing machine

Abstract

The utility model provides a sealing machine. The sealing machine is used for sealing packaging bags. The sealing machine comprises a main machine box and a water box installed on the main machine box. And a positioning piece is arranged on the water box and is used for fixing the packaging bag. The packaging bag is firstly fixed on the water box and then installed on the main machine box together with the water box. The packaging bag is fixed on the positioning piece in advance, so that when the water box is installed in the main machine box, the packaging bag is also brought into the main machine box to be sealed, the stability and accuracy of the deep position of the packaging bag in the main machine box are guaranteed, and the sealing effect of the packaging bag is improved.

Description

Technical Field

[0001] This application relates to the field of product packaging, and more particularly to a sealing machine. Background Technology

[0002] With technological advancements, sealing machines have become widely used in product packaging due to their high efficiency and continuous operation. However, these machines have certain limitations in their structural design. Sealing machines do not allow for direct observation or adjustment of the bag placement process by opening the mechanical structure. Operators can only rely on visual inspection or tactile experience to judge the bag's position and insertion depth, lacking precise positioning aids.

[0003] The above-mentioned operating methods can easily lead to problems such as misalignment of the packaging bag and inconsistent insertion depth, which in turn can cause process defects such as misalignment of the seal and poor sealing, directly affecting the airtightness of the product packaging. In addition, operators need to repeatedly adjust the position of the packaging bag to compensate for positioning deviations, further increasing the complexity and time cost of the operation.

[0004] Therefore, it is necessary to design a sealing machine that solves the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this application is to provide a sealing machine with good sealing effect.

[0006] This application provides a sealing machine for sealing packaging bags, comprising a main unit box and a water tank mounted on the main unit box; the water tank is provided with a positioning element for fixing the packaging bag; the packaging bag is first fixed to the water tank and then installed into the main unit box together with the water tank. Thus, when the water tank is installed into the main unit box, the packaging bag is also drawn into the main unit box for sealing, ensuring the stability and accuracy of the packaging bag in its deep position within the main unit box, and improving the sealing effect of the packaging bag.

[0007] Furthermore, the positioning element is a positioning post, and there are two positioning posts installed on the top of the water box; the packaging bag has positioning holes on opposite sides that are adapted to the positioning posts. Thus, when the user replaces the packaging bag, they only need to align it with the positioning holes and insert it, making the operation intuitive and reducing the possibility of incorrect installation. In addition, the user can also flatten the packaging bag to prevent wrinkles from affecting vacuuming and improve the sealing effect of the packaging bag.

[0008] Furthermore, the packaging bag includes a seal and sealing edges located on opposite sides of the seal. The sealing edges have multiple positioning holes along their length, with two opposite positioning holes mounted on the positioning posts. Thus, multiple positioning holes can provide different sealing positions for the packaging bag, improving its versatility.

[0009] Furthermore, the top of the water box is provided with an upward-opening water trough, and the top of the water box has multiple mounting holes along the length of the water trough. Two positioning posts are respectively assembled into these mounting holes; the distance between the two positioning posts is adapted to the size of the packaging bag. Thus, by selecting different combinations of mounting holes, the distance between the two positioning posts can be adjusted, thereby accommodating packaging bags of different widths and improving the versatility of the sealing machine.

[0010] Furthermore, the positioning post includes a main body and a telescopic part, the telescopic part being telescopically disposed at the top of the main body. Thus, the telescopic part automatically adapts and adjusts the limiting height by extending and retracting vertically, improving the stability of the packaging bag on the positioning post.

[0011] Furthermore, the main unit box has a sealing groove on its side, and a guide surface is formed at the opening of the sealing groove; the telescopic part abuts against the top wall of the sealing groove via the guide surface. In this way, the guide surface reduces the resistance to compression of the positioning post, allowing the positioning post to enter the sealing groove more smoothly. In addition, by abutting the telescopic part against the top wall of the sealing groove, the movement of the packaging bag within the sealing groove can be restricted.

[0012] Furthermore, the water box has a snap-fit ​​groove on its side, and two opposite side walls inside the sealing groove have snap-fits that fit the snap-fit ​​groove. Thus, the user only needs to push the water box into the sealing groove in a fixed direction, and the snap-fits automatically engage, requiring no additional operation and simplifying the installation process between the water box and the main unit box.

[0013] Furthermore, the top of the water tank is provided with a boss, the top of which is flat; the plurality of mounting holes are arranged on the flat surface. Thus, the boss design serves two purposes: firstly, it positions the packaging bag for sealing; secondly, it elevates the packaging bag, ensuring close contact between the bag and the heating wire on the main unit box, thereby improving the sealing effect. Simultaneously, the flat surface on the top of the boss facilitates the sealing operation of the packaging.

[0014] Furthermore, the boss includes a main body and guide portions located on both sides of the main body; the top of the main body and the water box are connected by an arc through the guide portions. This arc transition design effectively reduces the frictional resistance of the packaging bag at the junction of the guide portions and the main body, allowing the packaging bag to fit the boss contour more smoothly, thus improving sealing reliability and preventing wear of the packaging bag due to stress concentration.

[0015] Furthermore, the water tank is arranged parallel to the protrusion; when the packaging bag is installed on the water box, the seal is located above the water tank. This ensures that water flowing out of the packaging bag can enter the water tank.

[0016] Furthermore, a switch buckle is provided on the side wall of the sealing groove, and a protrusion adapted to the switch buckle is provided on the side wall of the water box.

[0017] The side wall of the sealing groove is also provided with a guide assembly that extends and retracts along the moving direction of the water box. In this way, the water box and the main unit box are locked together by the cooperation of the switch buckle and the protrusion. The design of the guide assembly facilitates the smooth installation of the water box and also assists in its removal, making the operation convenient.

[0018] This application has the following beneficial effects: By fixing the packaging bag to the positioning component in advance, the packaging bag is also brought into the main unit box for sealing when the water box is installed inside the main unit box, ensuring the stability and accuracy of the packaging bag in the deep position of the main unit box and improving the sealing effect of the packaging bag. Attached Figure Description

[0019] Figure 1 The figure shown is an exploded view of one embodiment of the sealing machine of this application;

[0020] Figure 2 As shown Figure 1 The diagram shows the packaging bag installed on the water tank and the main unit box.

[0021] Figure 3 As shown Figure 1 The diagram shows the packaging bag and water box installed in the main unit box;

[0022] Figure 4 The diagram shown is an exploded view of another embodiment of the sealing machine of this application;

[0023] Figure 5 As shown Figure 4 The diagram shows the packaging bag installed on the water tank and the main unit box;

[0024] Figure 6 As shown Figure 4 The diagram shows the packaging bag and water box installed in the main unit box;

[0025] Figure 7 The image shown is a partial exploded view of the host box of this application;

[0026] Figure 8 The image shown is a partial cross-sectional view of the switch buckle and protrusion in the locked state of this application;

[0027] Figure 9 The image shown is a partial cross-sectional view of the switch and protrusion in the unlocked state of this application;

[0028] Figure 10 The diagram shown is a partial structural schematic of the positioning component and water box of this application. Detailed Implementation

[0029] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses consistent with some aspects of this application as detailed in the appended claims.

[0030] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this utility model pertains. The words “a” or “one” and similar terms used in this application specification and claims do not indicate a limitation of quantity, but rather indicate the presence of at least one. The words “comprising” or “including” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, and do not exclude other elements or objects. The words “connected” or “linked” and similar terms are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0031] Reference Figure 1-6 As shown, this application discloses a sealing machine for sealing packaging bags 40a and 40b. The sealing machine includes a main unit box 10 and a water tank 20 installed on the main unit box 10. The water tank 20 is provided with a positioning element 30 for fixing the packaging bags 40a and 40b. The packaging bags 40a and 40b are first fixed on the water tank 20 and then installed together with the water tank 20 into the main unit box 10 for sealing.

[0032] The main unit box 10 has a sealing groove 11 on its side, which is located on the long side of the main unit box 10. A heating wire (not shown in the figure) is installed on the top wall of the sealing groove 11. A sliding operation button is provided on the top of the main unit box 10 along the length direction. When the operation button is slid left or right, the heating wire can be triggered to heat and seal the packaging bags 40a and 40b.

[0033] A latch 12 is provided on the inner wall opposite to the sealing groove 11. The latch 12 includes an installation part 121 and a guide part 122. The radial dimension of the guide part 122 decreases towards the opening of the sealing groove 11. In this way, the water box 20 is naturally aligned when inserted into the sealing groove 11, reducing jamming or misalignment, and can be easily installed even by the user with one hand.

[0034] Please refer to the reference. Figure 7-9 As shown, a switch buckle 13 and a guide assembly 14 are provided on the side wall along the length direction inside the sealing groove 11. The switch buckle 13 and the guide assembly 14 appear in pairs and are arranged at both ends of the side wall to improve the stability when the main unit box 10 and the water box 20 are locked.

[0035] A locking space is formed between the two latches of the switch latch 13. When an external force is applied to the switch latch 13, the two latches extend outward and clamp the protrusion 25 on the side wall of the water tank 20. When the external force is applied to the switch latch 13 again, the two latches retract inward and separate from the protrusion 25 to unlock the device.

[0036] The guide assembly 14 includes a spring 141 and a push rod 142. The sealing groove 11 is recessed along its length towards its opening, forming a groove. The spring 141 is placed within this groove, and the push rod 142 is partially placed within the groove, with the remaining portion engaging with the chamfered edge of the water tank 20. This design guides the installation of the water tank 20 during insertion and facilitates its removal by the elastic force of the spring 141, making operation convenient.

[0037] The top of the water box 20 has an upward-opening water trough 21, and the top of the water box 20 has multiple mounting holes 22 along the length of the water trough 21. Two positioning components 30 are respectively assembled into the multiple mounting holes 22. The spacing between the two positioning components is adapted to the size of the packaging bags 40a and 40b.

[0038] Users can adjust the spacing between the two positioning parts 30 by selecting different combinations of mounting holes 22, thereby ensuring compatibility with packaging bags 40a and 40b of different widths and improving the versatility of the sealing machine. Figure 1 and Figure 4 Two different sizes of packaging bags 40a and 40b are shown respectively, in which the positioning element 30 is located in different mounting holes 22.

[0039] The water box 20 has snap-fit ​​grooves 23 on both sides along the width direction, which are adapted to the snap-fit ​​12 on the inner wall of the sealing groove 11. Thus, the user only needs to push the water box 20 into the sealing groove 11 in a fixed direction, and the snap-fit ​​12 will automatically engage with the snap-fit ​​groove 23 without any additional operation, simplifying the installation process between the water box 20 and the main unit box 10.

[0040] The top of the water box 20 is provided with a boss 24, which is arranged parallel to the water tank 21. When the water box 20 is installed in the sealing groove 11, the projection of the heating wire on the water box 20 is located on the top of the boss 24. In this embodiment, the top of the boss 24 is provided with a flat surface, and multiple mounting holes 22 are provided on the flat surface.

[0041] The protrusion 24 is designed to position the packaging bags 40a and 40b at the sealing point, and also to elevate the packaging bags 40a and 40b, ensuring close contact between the packaging bags 40a and 40b and the heating wire on the main unit box 10, thus improving the sealing effect. Additionally, a flat surface is provided on the top of the protrusion 24 to facilitate the sealing operation of the packaging bags 40a and 40b.

[0042] The boss 24 includes a main body 241 and guide portions 242 located on both sides of the main body 241. The top of the main body 241 and the water box 20 are connected by an arc through the guide portions 242. The arc transition design effectively reduces the frictional resistance of the packaging bags 40a and 40b at the junction of the guide portions 242 and the main body 241, allowing the packaging bags 40a and 40b to fit the contour of the boss 24 more smoothly, which improves the sealing reliability and avoids wear of the packaging bags 40a and 40b due to stress concentration.

[0043] Please refer to the reference. Figure 10 As shown, the positioning element 30 is a positioning post, and there are two positioning posts installed on the top of the water box 20. In this embodiment, the positioning post includes a body part 31 and a telescopic part 32 that is telescopically disposed on the body part 31. The body part 31 is installed in a mounting hole 22 on a plane. For example, the body part 31 can be installed on the main body 241 by means of threaded connection, snap-fit, or interference fit. In some cases, the positioning element 30 is a flexible copper post.

[0044] In addition, in order to make the telescopic part 32 pass more smoothly into the sealing groove of the main unit box 10, this embodiment forms a guide surface 111 at the opening of the sealing groove 11. The guide surface 111 is an inclined surface formed on the top wall of the sealing groove 11.

[0045] The main body 31 can position the packaging bags 40a and 40b. When the water box 20 is installed in the sealing groove 11, the telescopic part 32 abuts against the top wall of the sealing groove 11 to prevent the packaging bags 40a and 40b from disengaging from the positioning member 30, especially when the user flattens the packaging bags 40a and 40b to prevent wrinkles from affecting the vacuuming.

[0046] Packaging bags 40a and 40b include a seal 42 and sealing edges 43 located on opposite sides of the seal 42. The sealing edges 43 have multiple positioning holes 41 along their length, and two opposite positioning holes 41 are mounted on positioning posts. By providing multiple positioning holes, different sealing positions can be provided for packaging bags 40a and 40b, improving the versatility of packaging bags 40a and 40b.

[0047] Since the boss 24 is arranged parallel to the water tank 21 in this embodiment, when the packaging bags 40a and 40b are installed on the water box 20, the seal 41 is located above the water tank 21. In this way, it is ensured that the water flowing out of the packaging bags 40a and 40b can enter the water tank 21.

[0048] This application also discloses a method for sealing packaging bags 40a and 40b: First, adjust the position of the positioning member 30 according to the size of the packaging bags 40a and 40b. Then, fit the positioning holes on the packaging bags 40a and 40b onto the positioning member 30. Next, push the water box 20 into the sealing groove 11 in the direction of the arrow in the figure, so that the buckle 12 and the buckle groove 23 are aligned. Then, lock the switch buckle 13 and the protrusion 25. Finally, slide the button left and right to complete the sealing operation.

[0049] This application also discloses a method for removing sealed packaging bags 40a and 40b: First, squeeze both ends of the long side of the water box 20 to unlock the switch buckle 13 and the protrusion 25. Then, move the water box 20 out in the direction of the arrow in the figure to separate the buckle 12 and the buckle groove 23, and remove the water box 20. Finally, lift the packaging bags 40a and 40b upwards and remove them from the positioning member 30.

[0050] This application pre-fits packaging bags 40a and 40b with positioning holes 41 onto the positioning member 30. When the water box 20 is installed inside the main unit box 10, the packaging bags 40a and 40b are also brought into the main unit box 10 for sealing, ensuring the stability and accuracy of the packaging bags 40a and 40b in their deep position within the main unit box 10. Furthermore, the water box 20 directly inserts the packaging bags 40a and 40b into the main unit box 10 from the side, eliminating the need for operation of the main unit box 10 and making assembly / disassembly convenient.

[0051] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A sealing machine for sealing a packaging bag, characterized by The application relates to a sealing machine, which comprises a main box and a water box installed on the main box; the water box is provided with positioning members for fixing the packaging bag; the packaging bag is first fixed on the water box and then installed on the main box together with the water box.

2. The sealing machine according to claim 1, characterized in that, the positioning members are positioning columns, the number of the positioning columns is two, and the positioning columns are installed on the top of the water box; opposite sides of the packaging bag are provided with positioning holes matched with the positioning columns.

3. The sealing machine according to claim 2, characterized in that, the packaging bag comprises a sealing part and sealing edges located on opposite sides of the sealing part, the sealing edges are provided with a plurality of positioning holes along the length direction, and opposite two positioning holes are installed on the positioning columns.

4. The sealing machine according to claim 3, characterized in that, the top of the water box is provided with a water groove opening upward, the top of the water box is provided with a plurality of mounting holes along the length direction of the water groove, and two positioning columns are assembled into the mounting holes respectively; the spacing between the two positioning columns is matched with the size of the packaging bag.

5. The sealing machine according to claim 4, characterized in that, the positioning column comprises a body part and a telescopic part, and the telescopic part is telescopically arranged at the top end of the body part.

6. The sealing machine according to claim 5, characterized in that, the side edge of the main box is provided with a sealing groove, a guide surface is formed at the opening of the sealing groove; and the telescopic part abuts against the top wall of the sealing groove through the guide surface.

7. The sealing machine according to claim 6, characterized in that, the side edge of the water box is provided with a buckle groove, and buckles matched with the buckle groove are arranged on opposite two side walls in the sealing groove.

8. The sealing machine according to claim 6, characterized in that, the top of the water box is provided with a boss, the top of the boss is a plane, and the mounting holes are arranged on the plane.

9. The sealing machine according to claim 8, characterized in that, the boss comprises a main body part and guide connecting parts located on two sides of the main body part; and the main body part and the top of the water box are circularly transitioned through the guide connecting parts.

10. The sealing machine according to claim 8, characterized in that, the water groove and the boss are arranged in parallel; and when the packaging bag is installed on the water box, the sealing part is located above the water groove.

11. The sealing machine according to claim 6, characterized in that, the side wall of the sealing groove is provided with a switch buckle, and the side wall of the water box is provided with a protruding block matched with the switch buckle; the side wall of the sealing groove is further provided with a guide assembly telescopically arranged along the moving direction of the water box.

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