Vacuum sealing machine with buckling detection device

Abstract

The utility model provides a vacuum sealing machine with a buckling detection device, which comprises a containing groove arranged on the side wall of a sealing machine shell, the buckling detection device is arranged in the containing groove, the buckling detection device comprises a detection button arranged in the sealing machine shell, and the detection button is arranged on the side wall of the sealing machine shell. Buckles which are located on the two sides of the sealing machine upper cover and correspond to the buckling detection devices are arranged in the sealing machine upper cover, and an embedding groove is formed in the side wall of each buckle; in the process that the buckle presses the buckling detection device downwards, a switch of the detection button can be triggered, then whether the sealing machine upper cover and the sealing machine shell are buckled or not is detected, and the situation that due to the fact that the sealing performance of a negative pressure cavity of the sealing machine upper cover and the sealing machine shell is poor, a bag body cannot be completely vacuumized, and the sealing performance of the bag body is poor can be prevented. And in the heat sealing process, a heat sealing knife of an upper cover plate cannot completely heat-seal the bag body, and a notch is formed in a bag opening, so that air enters the bag body, and articles are rotten.

Description

Technical Field

[0001] This utility model relates to a vacuum sealing machine with a fastening detection device, which is applied in the field of vacuum sealing. Background Technology

[0002] A vacuum sealing machine is a device used for sealing packaging, primarily to extend the shelf life and maintain the freshness of products such as food, pharmaceuticals, and cosmetics. Its main principle is to use vacuum technology to remove air from the bag, creating a vacuum environment, and then heat-sealing it to ensure the product's airtightness and shelf life.

[0003] Existing vacuum sealing machines place the bag in the sealing groove, press the bag together with the top cover, then use a vacuum pump to create a vacuum, and finally use a heat sealing device to seal the bag opening. However, existing vacuum sealing machines lack a detection device to check whether the top cover is properly pressed together, which may result in poor sealing of the negative pressure chamber between the top cover and the sealing machine housing. This makes it impossible to completely vacuum the bag, leaving air inside. Furthermore, during the heat sealing process, the heat sealing blade on the top cover may not completely seal the bag, leaving a gap at the bag opening that allows air to enter and cause the item to spoil. Therefore, to address these problems, this utility model designs a vacuum sealing machine with a fastening detection device. Utility Model Content

[0004] This invention provides a vacuum sealing machine with a fastening detection device, which can effectively solve the above problems.

[0005] This utility model is implemented as follows:

[0006] A vacuum sealing machine with a fastening detection device includes:

[0007] A sealing machine housing, including a receiving groove disposed on the side wall of the sealing machine housing;

[0008] The fastening detection device includes a sliding block disposed in a receiving groove and elastically connected to the inner side of the sealing machine housing. A button is connected to the other side of the sliding block. A slot is provided in the middle of the sliding block. An inclined protrusion is provided on the side wall of the slot. A positioning member is provided below the sliding block. A positioning groove is provided on the inner side wall of the positioning member. A pressing block is inserted into the positioning groove. The pressing block abuts against the detection button below. A control board is provided inside the sealing machine housing. A controller is configured on the control board. The detection button is electrically connected to the controller.

[0009] The sealing machine cover is hinged to the sealing machine housing. The sealing machine cover has buckles on both sides that correspond to the fastening detection device. An embedding groove is provided on the side wall of the buckle.

[0010] The buckle is used to abut against the inclined protrusion downwards so that the inclined protrusion is accommodated in the embedded groove, thereby completing the fastening operation between the sealing machine housing and the sealing machine cover, and pressing the detection button;

[0011] The detection button is configured to provide a closing completion signal to the controller.

[0012] As a further improvement, the sealing machine housing includes an upper housing and a lower housing. The positioning member is fixedly fastened to the upper housing by bolts. An opening groove is provided on the side wall of the positioning groove. An extension block adapted to the opening groove is provided on the side wall of the pressing block. The extension block is disposed in the opening groove. The buckle presses the extension block downward so that the pressing block presses the detection button.

[0013] As a further improvement, a hollow positioning block is provided below the positioning groove, and a button limiting block is provided on each of the four sides of the positioning block. A limiting post is provided below the positioning component in the lower housing, and the detection button abuts against the upper limit post. When the positioning component is locked and fixed in the upper housing, the detection button limiting block abuts against the upper surface of the detection button, and the button limiting block abuts against the four sides of the detection button.

[0014] As a further improvement, a first limiting block is symmetrically arranged on the side wall of the sliding block, and a second limiting block corresponding to the first limiting block is arranged above the positioning member. When the sliding block is installed above the positioning member, the side wall of the first limiting block away from the compression spring abuts against the second limiting block.

[0015] As a further improvement, the sealing machine housing further includes a vacuum sealing device, the vacuum sealing device including a vacuum pumping component disposed inside the sealing machine housing, the sealing machine housing having a first groove corresponding to the vacuum pumping component, and a sealing component disposed in front of the first groove.

[0016] The beneficial effects of this utility model are: by pressing down the buckle on the buckle detection device, the switch of the detection button can be triggered, thereby detecting whether the sealing machine cover and the sealing machine housing are fully engaged. This can prevent the sealing of the negative pressure cavity of the sealing machine cover and the sealing machine housing from being poor, which would prevent the bag from being completely vacuumed, resulting in air residue inside the bag. Furthermore, during the heat sealing process, the heat sealing knife of the cover plate may not completely heat seal the bag, leaving a gap at the bag opening that allows air to enter and cause the item to spoil. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the vacuum sealing machine provided in this embodiment of the utility model.

[0019] Figure 2 This is a schematic diagram of the disassembly structure of the sealing machine housing and the sealing machine top cover provided in this embodiment of the utility model.

[0020] Figure 3 This is a schematic diagram of the sealing machine cover structure provided in this embodiment of the utility model.

[0021] Figure 4 yes Figure 3 A schematic diagram of the cross-sectional structure at point AA.

[0022] Figure 5 This is a schematic diagram of the exploded structure of the sealing machine cover provided in this embodiment of the utility model.

[0023] Figures 6-7 This is an exploded structural diagram of the fastening detection device provided in this embodiment of the utility model.

[0024] Figure 8 This is a schematic diagram of the installation structure of the fastening detection device provided in this embodiment of the utility model.

[0025] Figure 9 This is a schematic diagram of the positioning component structure provided in an embodiment of this utility model.

[0026] The attached diagram is labeled as follows:

[0027] 10. Sealing machine body;

[0028] 11. Sealing machine housing; 111. Upper housing; 112. Lower housing; 113. First groove; 114. Air extraction hole; 115. Bag fixing block; 116. Receiving groove; 12. Sealing machine top cover; 121. Heat sealing strip receiving groove; 122. Second groove; 123. Mounting post; 124. Through hole; 125. Buckle; 1251. Embedding groove;

[0029] 20. Vacuum sealing device; 21. Vacuum pumping assembly; 211. Vacuum pump; 22. Sealing assembly; 221. Heat sealing strip;

[0030] 30. Negative pressure detection device; 31. Second control board; 32. Second controller; 33. Second detection button; 34. Negative pressure diaphragm;

[0031] 40. Fastening detection device; 41. Sliding block; 411. Slot; 412. Inclined protrusion; 413. First limiting block; 42. Compression spring; 43. Button; 44. Positioning component; 441. Positioning groove; 442. Opening groove; 443. Positioning block; 444. Button limiting block; 445. Limiting post; 446. Second limiting block; 45. Pressing block; 451. Extension block; 46. Detection button; 47. Control board; 48. Controller. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0033] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] Reference Figures 1-3As shown, a vacuum sealing machine with a fastening detection device 40 includes: a sealing machine body 10 including a sealing machine housing 11 and a sealing machine top cover 12 hinged to the sealing machine housing 11; a vacuum sealing device 20 is included inside the sealing machine housing 11; the vacuum sealing device 20 includes a vacuum pumping assembly 21 disposed inside the sealing machine housing 11; the vacuum pumping assembly 21 includes a vacuum pump 211 disposed inside the sealing machine housing 11; a first groove 113 corresponding to the vacuum pumping assembly 21 is provided on the sealing machine housing 11; a suction hole 114 is provided on the first groove 113; the vacuum pump 211 is connected to the suction hole 114 through a conduit; a bag fixing block 115 is provided on the first groove 113; a bag to be vacuumed is placed on the bag fixing block 115; the sealing machine top cover 12 and the sealing machine housing 11 are fastened; and the vacuum pump 211 extracts the gas inside the bag to achieve a vacuum effect.

[0035] A sealing component 22 is provided in front of the first groove 113. The sealing component 22 includes a heat sealing strip 221 provided on the sealing machine housing 11. The sealing machine cover 12 is provided with a heat sealing strip receiving groove 121 corresponding to the heat sealing strip 221. The sealing machine cover 12 and the sealing machine housing 11 are fastened together. After the air in the bag is completely extracted, the bag opening is heated by the heat sealing strip 221 to seal the bag opening.

[0036] Reference Figures 3-4As shown, this utility model designs a low-cost negative pressure detection device 30. The negative pressure detection device 30 includes a second control board 31 disposed inside the upper cover 12 of the sealing machine. The second control board 31 is provided with a second controller 32 and a second detection button 33. The second controller 32 can be an STM32 series microcontroller. The second controller 32 is electrically connected to the second detection button 33. The bottom of the upper cover 12 of the sealing machine is provided with a second groove 122 corresponding to the first groove 113. When the sealing machine cover 12 and the sealing machine housing 11 are fastened together, the first groove 113 and the second groove 122 combine to form a negative pressure cavity. The sealing machine cover 12 has a hollow mounting post 123 corresponding to the second detection button 33. The mounting post 123 has a through hole 124 communicating with the second groove 122. A negative pressure diaphragm 34 is mounted on the mounting post 123. In the initial state, when the negative pressure module presses the second detection button 33, the vacuum assembly 21 extracts the air from the first groove 113. When the bag reaches a vacuum state, the negative pressure diaphragm 34 indents downwards in the middle, causing the negative pressure diaphragm 34 to release the second detection button 33. The second detection button 33 transmits a negative pressure signal to the second controller 32. Upon receiving the negative pressure signal, the second controller 32 indicates that the vacuuming operation is complete. This utility model replaces the traditional mechanical negative pressure detection device with a second detection button 33 and a negative pressure diaphragm 34. This method does not require complex mechanical mechanisms, has better stability, and can better complete the negative pressure detection work. The vacuum sealing machine can select a negative pressure diaphragm 34 of appropriate thickness so that when the gas pressure in the negative pressure chamber reaches a certain value, the negative pressure diaphragm 34 indents downwards. In one embodiment, when the gas pressure in the negative pressure chamber reaches -0.5 MPa, the negative pressure diaphragm 34 drops by 1.5 mm, thus smoothly releasing the second detection button 33. Compared with a precise negative pressure detection module, this utility model can effectively reduce costs through the detection diaphragm of the second detection button 33 and the negative pressure diaphragm 34.

[0037] Reference Figures 5-9As shown, a receiving groove 116 is provided on the side wall of the sealing machine housing 11. A fastening detection device 40 is provided in the receiving groove 116. The fastening detection device 40 includes a sliding block 41 disposed in the receiving groove 116. A compression spring 42 is connected to one side of the sliding block 41, and the other end of the compression spring 42 abuts against the inner side wall of the sealing machine housing 11. A button 43 is connected to the other side of the sliding block 41. A slot 411 is provided in the middle of the sliding block 41, and an inclined protrusion 412 is provided on the side wall of the slot 411. The outer side of the inclined protrusion 412 is an inclined surface. A positioning member 44 is provided below the sliding block 41. A positioning groove 441 is provided on the inner side wall of the positioning member 44. A pressing block 45 is inserted into the positioning groove 441. The pressing block 45 abuts against the detection button 46 below. A control board 47 is provided inside the sealing machine housing 11. A controller 48 is configured on the control board 47. The detection button 46 is electrically connected to the controller 48. The controller 48 can be an STM32 series microcontroller.

[0038] The sealing machine cover 12 is provided with buckles 125 on both sides of the sealing machine cover 12, which correspond to the fastening detection device 40. An embedding groove 1251 is provided on the side wall of the buckle 125.

[0039] When the sealing machine cover 12 and the sealing machine housing 11 are fastened together, the buckle 125 abuts against the inclined protrusion 412, and the sliding block 41 compresses the compression spring 42. When the inclined protrusion 412 is fully accommodated in the embedded groove 1251, the buckle 125 presses down on the pressing block 45, causing the pressing block 45 to press the detection button 46. The button sends a signal indicating that the fastening is complete to the controller 48. The controller 48 receives the signal indicating that the sealing machine housing 11 and the sealing machine cover 12 have completed the fastening operation. By pressing down the fastening detection device 40 with the buckle 125, the switch of the detection button 46 can be triggered, thereby detecting whether the sealing machine cover 12 and the sealing machine housing 11 have completed the fastening. This can prevent negative pressure in the sealing machine cover 12 and the sealing machine housing 11. Poor sealing prevents complete vacuuming of the bag, leaving air inside. Furthermore, during heat sealing, the heat-sealing blade on the top cover may not completely seal the bag, leaving a gap at the opening that allows air to enter and cause spoilage. On the other hand, detecting whether the top cover 12 and the housing 11 of the sealing machine are properly engaged can effectively improve the detection accuracy of the negative pressure detection device 30. Since the design of this product is pre-calculated during manufacturing, the required pressure for the negative pressure diaphragm 34 to indent downwards and release the second detection button 33 is precisely calculated. Therefore, if the top cover 12 and the housing 11 are not properly engaged, gas leakage within the negative pressure chamber will prevent the chamber from reaching the specified pressure value, affecting the detection results.

[0040] The sealing machine housing 11 includes an upper housing 111 and a lower housing 112. The positioning member 44 is fixedly fastened to the upper housing 111 by bolts. The side wall of the positioning groove 441 is provided with an opening groove 442. The side wall of the pressing block 45 is provided with an extension block 451 that matches the opening groove 442. The extension block 451 is disposed in the opening groove 442. The buckle 125 presses the extension block 451 downward so that the pressing block 45 presses the detection button 46. Since the pressing block 45 and the detection button 46 are both circular in shape, the extension block 451 can effectively prevent the pressing block 45 from rotating.

[0041] A hollow positioning block 443 is provided below the positioning groove 441. A button limiting block 444 is provided on each of the four sides of the positioning block 443. A limiting post 445 is provided below the positioning member 44 in the lower housing 112. The detection button 46 abuts against the upper limit post 445. When the positioning member 44 is locked and fixed in the upper housing 111, the button limiting block 444 abuts against the upper surface of the detection button 46. The button limiting block 444 abuts against the periphery of the detection button 46, so that the detection button 46 can be fixed inside the sealing machine housing 11. This prevents the detection button 46 from shifting when the sealing machine is moved, which would prevent the pressing block 45 from pressing the detection button 46 and affect the fastening operation between the sealing machine housing 11 and the sealing machine upper cover 12.

[0042] A first limiting block 413 is symmetrically arranged on the side wall of the sliding block 41, and a second limiting block 446 corresponding to the first limiting block 413 is arranged above the positioning member 44. When the sliding block 41 is installed above the positioning member 44, the side wall of the first limiting block 413 away from the compression spring 42 abuts against the second limiting block 446, which can effectively prevent the sliding block 41 from detaching from the sealing machine housing 11 under the action of the compression spring 42.

[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vacuum sealing machine with a fastening detection device, characterized in that, include: The sealing machine housing (11) includes a receiving groove (116) disposed on the side wall of the sealing machine housing (11); The fastening detection device (40) includes a sliding block (41) disposed in a receiving groove (116) and elastically connected to the inner side of the sealing machine housing (11). A button (43) is connected to the other side of the sliding block (41). A slot (411) is provided in the middle of the sliding block (41). An inclined protrusion (412) is provided on the side wall of the slot (411). A positioning member (44) is provided below the sliding block (41). A positioning groove (441) is provided on the inner side wall of the positioning member (44). A pressing block (45) is inserted into the positioning groove (441). The pressing block (45) abuts against the detection button (46) below. A control board (47) is provided inside the sealing machine housing (11). A controller (48) is configured on the control board (47). The detection button (46) is electrically connected to the controller (48). The sealing machine cover (12) is hinged to the sealing machine housing (11). The sealing machine cover (12) has buckles (125) on both sides corresponding to the fastening detection device (40). An embedding groove (1251) is provided on the side wall of the buckle (125). The buckle (125) is used to abut against the inclined protrusion (412) downward so that the inclined protrusion (412) is accommodated in the embedded groove (1251), thereby completing the fastening operation between the sealing machine housing (11) and the sealing machine cover (12), and pressing the detection button (46); The detection button (46) is configured to provide a locking completion signal to the controller (48).

2. A vacuum sealing machine with a fastening detection device according to claim 1, characterized in that, The sealing machine housing (11) includes an upper housing (111) and a lower housing (112). The positioning member (44) is fixed in the upper housing (111) by bolts. The side wall of the positioning groove (441) is provided with an opening groove (442). The side wall of the pressing block (45) is provided with an extension block (451) that is adapted to the opening groove (442). The extension block (451) is located in the opening groove (442). The buckle (125) presses the extension block (451) down so that the pressing block (45) presses the detection button (46).

3. A vacuum sealing machine with a fastening detection device according to claim 2, characterized in that, A hollow positioning block (443) is provided below the positioning groove (441). A button limiting block (444) is provided on each of the four sides of the positioning block (443). A limiting post (445) is provided below the positioning member (44) in the lower housing (112). The detection button (46) abuts against the upper limit post (445). When the positioning member (44) is locked and fixed in the upper housing (111), the detection button limiting block (444) abuts against the upper surface of the detection button (46). The button limiting block (444) abuts against the four sides of the detection button (46).

4. A vacuum sealing machine with a fastening detection device according to claim 3, characterized in that, A first limiting block (413) is symmetrically arranged on the side wall of the sliding block (41), and a second limiting block (446) corresponding to the first limiting block (413) is arranged above the positioning member (44). When the sliding block (41) is installed above the positioning member (44), the side wall of the first limiting block (413) away from the compression spring (42) abuts against the second limiting block (446).

5. A vacuum sealing machine with a fastening detection device according to claim 1, characterized in that, The sealing machine housing (11) further includes a vacuum sealing device (20), the vacuum sealing device (20) includes a vacuum pumping component (21) disposed inside the sealing machine housing (11), the sealing machine housing (11) is provided with a first groove (113) corresponding to the vacuum pumping component (21), and a sealing component (22) is disposed in front of the first groove (113).

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