Vacuum packaging machine with partial sealing capability

Abstract

This invention discloses a partially sealable vacuum packaging machine, comprising a main body, an electrically controlled suction nozzle and a heat sealer respectively disposed inside and outside the main body, a suction device connected to the electrically controlled suction nozzle, and a control unit. The control unit is electrically connected to the heat sealer, the electrically controlled suction nozzle, and the suction device, and controls their operation. When the control unit performs a heat sealing process, it first controls the electrically controlled suction nozzle to extend out of the main body and position it above the heat sealer outside the main body. Then, it controls the suction device to provide negative pressure suction through the electrically controlled suction nozzle, while simultaneously heating the heat sealer for heat sealing. When a bag is fitted onto the electrically controlled suction nozzle for heat sealing, the portion of the bag opening corresponding to the electrically controlled suction nozzle will not be sealed, improving the flexibility of packaging ingredients or food products.

Description

Technical fields:

[0001] This invention relates to the field of vacuum packaging machines, specifically a vacuum packaging machine capable of partial sealing. Background technology:

[0002] To keep food fresh and preserve it for a long time by isolating it from air, food is usually placed in a vacuum packaging bag, and a vacuum packaging machine is used to remove the air from the bag. The bag opening is then heat-sealed to seal it. However, to achieve the effect of isolating the air, existing vacuum packaging machines must completely heat-seal the bag opening. Therefore, they are not flexible enough for packaging food, and improvements are necessary. Summary of the Invention:

[0003] The technical problem to be solved by the present invention is to provide a partially sealable vacuum packaging machine that can improve the flexibility of packaging ingredients or food.

[0004] The technical solution of the present invention is to provide a vacuum packaging machine capable of partial sealing, comprising:

[0005] A main body, which includes

[0006] A hollow seat body, one of its front side walls forms a through hole;

[0007] A base extending forward from the bottom of the hollow seat, and a heat fusion device provided on one of its upper surfaces; and

[0008] A top cover is pivotally connected to two opposite outer sides of the hollow base, and a barrier is provided on its lower surface; wherein when the top cover pivots toward the base, the barrier and the hot melt abut against each other;

[0009] An electrically controlled suction nozzle is disposed within the hollow base and extends out of or retracts into the hollow base through the through hole; wherein, when the electrically controlled suction nozzle extends out of the through hole, it is positioned above the hot melt machine; and

[0010] A suction device is disposed within the hollow base and connected to the electrically controlled suction nozzle to provide negative pressure suction; and

[0011] A control unit is disposed in the hollow seat and electrically connected to the heat melter, the electronically controlled suction nozzle and the suction device; wherein when the control unit controls the electronically controlled suction nozzle to pass through the through hole and controls the suction device to provide negative pressure suction through the electronically controlled suction nozzle, the heat melter is heated.

[0012] Preferably, the control unit controls the hot melter to heat for a period of time, then controls the electronically controlled suction nozzle to retract into the hollow base, and continues to control the hot melter to heat.

[0013] Preferably, the suction device further includes a negative pressure detector connected in series between the suction device and the electrically controlled suction nozzle to detect the negative pressure value of the electrically controlled suction nozzle and is electrically connected to the control unit; and

[0014] The control unit is set with a negative pressure threshold and reads the negative pressure value of the electronically controlled nozzle detected by the negative pressure detector in real time. When the control unit determines that the negative pressure value of the electronically controlled nozzle detected by the negative pressure detector reaches the negative pressure threshold, it controls the electronically controlled nozzle to retract into the main body and continues the heat-melting process.

[0015] Preferably, it may also include a nozzle / heat melt control button, which is electrically connected to the control unit, and the control unit determines when the nozzle / heat melt control button is pressed and controls the electrically controlled nozzle to retract into the hollow seat of the main body.

[0016] Preferably, it may also include a control interface, which is disposed on the hollow base of the main body and electrically connected to the control unit, and includes a suction control button, which is electrically connected to the control unit. When the suction control button is pressed, the control unit controls the suction device to provide negative pressure suction through the electronically controlled nozzle.

[0017] Preferably, the control interface system further includes:

[0018] A heating time increase button notifies the control unit to increase the heating time of the hot melter.

[0019] A heating time reduction button instructs the control unit to reduce the heating time of the heat melter; and

[0020] A heating time display unit is used to display the heating time of the heat melter controlled by the control unit.

[0021] Preferably, the base further includes at least one insulating portion disposed on the upper surface of the base and located in front of the hot melter; and

[0022] The cover further includes a sealing member disposed on the lower surface of the cover and located in front of the barrier member; wherein when the cover pivots toward the base, the sealing member and the at least one isolation portion abut against each other.

[0023] Preferably, the base further includes two snap-fit ​​holes, which are recessed at intervals on the upper surface of the base and located on two opposite sides of the hot melt; and

[0024] The upper cover further corresponds to the two latching holes of the base, which include two latching members, which are respectively spaced apart on the lower surface of the upper cover and located on two opposite sides of the barrier; wherein when the upper cover pivots toward the base, each latching member is latched into the corresponding latching hole of the base.

[0025] Preferably, the top and bottom sidewalls of one of the electronically controlled nozzles are respectively formed by two through-holes.

[0026] Furthermore, the hollow base system of the main body further includes a water collection box, which is disposed on a rear side wall of the hollow base and connected in series between the electronically controlled suction nozzle and the suction device.

[0027] Compared with the prior art, the present invention has the following advantages after adopting the above solution:

[0028] The vacuum packaging machine of the present invention, which can partially seal, is mainly characterized by the control unit controlling the heating of the heat melter while the electronically controlled suction nozzle remains protruding through the through hole. Therefore, when the bag body fitted with the electronically controlled suction nozzle is heat-sealed, the electronically controlled suction nozzle is still located between the heat melter and the barrier and has not left the bag opening. The bag body is only partially sealed, which can improve the flexibility of packaging ingredients or food. Attached image description:

[0029] Figure 1 This is a perspective view of an embodiment of the present invention.

[0030] Figure 2 for Figure 1 Partial exploded 3D diagram.

[0031] Figure 3 This is a perspective view of another embodiment of the present invention.

[0032] Figure 4 This is a functional block diagram of the present invention.

[0033] Figures 5(a) to 5(d) This is a schematic diagram illustrating the use of the partially sealing vacuum packaging machine of the present invention.

[0034] in,

[0035] 1: Main body; 10: Hollow base; 100: Bottom; 102: Front side wall; 103: Rear side wall; 104: Outer side wall; 105: Through hole; 106: Water collection box; 11: Base; 110: Upper surface; 111: Heat fusion device; 112: Isolation part; 113: Snap-on hole; 12: Top cover; 120: Lower surface; 121: Barrier; 122: Sealing part; 123: Snap-on part; 2: Electrically controlled nozzle; 21: Front end; 211: Notch; 22: Front opening; 3: Suction device; 31: Negative pressure detector; 4: Control unit; 5: Control interface; 51: Nozzle / heat fusion control button; 52: Suction control button; 53: Heating time increase button; 54: Heating time decrease button; 55: Heating time display; 6: Bag body; 61: Bag opening; 61': Partial bag opening; 62: Outer part. Detailed implementation method:

[0036] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0037] A partially sealing vacuum packaging machine, see [link / reference] Figure 1 and Figure 2 This is a first embodiment of the vacuum packaging machine with partial sealing capability of the present invention, which includes a main body 1, an electrically controlled suction nozzle 2, a suction device 3 and a control unit 4, and may further include a control interface 5.

[0038] Continue reading Figure 1 and Figure 2 The aforementioned main body 1 includes a hollow base 10, a base 11, and a top cover 12. The hollow base 10 includes a front sidewall 102, a rear sidewall 103, and two opposing outer sidewalls 104, and includes a through hole 105, wherein the through hole 105 is formed in the front sidewall 102; in one embodiment, the through hole 105 is formed in the middle section of the front sidewall 102 near the bottom 100 of the hollow base 10, but this is not a limitation. In this embodiment, the hollow base 10 may further include a water collection box 106, which is disposed on the rear sidewall 103 of the hollow base 10. In one embodiment, the hollow base 10 may be in the shape of a rectangular box.

[0039] The base 11 of the main body 1 extends forward from the bottom 100 of the hollow base 10; in one embodiment, the base 11 may further extend outward from the bottom 100 of the hollow base 10 to two opposite sides. The base includes a heat fusion device 111 and may further include at least one isolation portion 112 and two snap-fit ​​holes 113; the heat fusion device 111 is disposed on one of the upper surfaces 110 of the base 11 and located in front of the front sidewall 102 of the hollow base 10; in this embodiment, the heat fusion device 111 may be elongated. The at least one isolation portion 112 is disposed on the upper surface 110 of the base 11 and located in front of the heat fusion device 111; in this embodiment, the base 11 may include two parallel isolation portions 112, each isolation portion 112 may be elongated and parallel to the heat fusion device 111. The two snap-fit ​​holes 113 are recessed at intervals on the upper surface 110 of the base 11, located on two opposite sides of the hot melter 111.

[0040] The upper cover 12 of the main body 1 is pivotally mounted on the two opposite outer side walls 104 of the hollow base 10, and can pivot toward the base 11 to cover the base 11, that is, the lower surface of the upper cover 12 will be in contact with the upper surface 110 of the base 11; in one embodiment, the upper cover 12 may be U-shaped. The upper cover 12 includes a barrier 121, and may further include a sealing member 122 and two fasteners 123. The barrier 121 is disposed on the lower surface 120 of the upper cover 12; in this embodiment, the barrier 121 is elongated. The sealing member 122 is disposed on the lower surface 120 of the upper cover 12 and is located in front of the barrier 121; in this embodiment, the sealing member 122 is elongated and parallel to the barrier 121. The two fasteners 123 correspond to the two fastening holes 113 of the base 11 and are respectively spaced apart on the lower surface 120 of the upper cover 12, located on two opposite sides of the barrier 121. When the upper cover 12 pivots toward the base 11, the barrier 121 abuts against the heat fusion device 111, the sealing member 122 abuts against each of the isolation parts 112, and each fastener 123 is fastened in the corresponding fastening hole 113, so that the upper cover 12 and the base 11 are locked together.

[0041] The aforementioned electrically controlled suction nozzle 2 is disposed within the hollow base 10 of the main body 1, and can selectively extend or retract from the hollow base 10 through the through hole 105 according to control. In one embodiment, after the electrically controlled suction nozzle 2 extends through the through hole 105, it is positioned above the heat fusion device 111 of the base 11. When the upper cover 12 pivots toward the base 11, the electrically controlled suction nozzle 2 can be clamped between the heat fusion device 111 and the barrier 121. In this embodiment, after the electrically controlled suction nozzle 2 extends through the through hole 105, and when the upper cover 12 pivots toward the base 11, the electrically controlled suction nozzle 2 can be clamped between the heat fusion device 111 and the barrier, and between each of the isolation portions 112 and the sealing member 122 of the base 11. In one embodiment, as... Figure 3 As shown, the top and bottom sidewalls of the front end 21 of the electronically controlled suction nozzle 2 are respectively formed by two through-holes 211; thus, when the front opening 22 of the electronically controlled suction nozzle 2 is blocked by an object, air can still be smoothly sucked into the electronically controlled suction nozzle 2 through the two through-holes 211. In another embodiment, the electronically controlled suction nozzle 2 can be made of metal, and its front opening 22 can be flat and elliptical.

[0042] The aforementioned suction device 3 is disposed within the hollow base 10 of the main body 1 and connected to the electrically controlled suction nozzle 2 to provide negative pressure suction. In one embodiment, the water collection box 106 can be connected in series between the electrically controlled suction nozzle 2 and the suction device 3. When the electrically controlled suction nozzle 2 draws in liquid, the liquid can first enter and be stored in the water collection box 106 to prevent damage to the suction device 3. In another embodiment, the suction device 3 may further include a negative pressure detector 31, which is connected in series between the electrically controlled suction nozzle 2 and the suction device 3 to detect the negative pressure value of the electrically controlled suction nozzle 2. In one embodiment, the suction device 3 may be a miniature vacuum pump, but is not limited thereto.

[0043] In one embodiment, the control unit 4 is disposed within the hollow base 10 of the main body 1, and has a built-in heat-melting process. Please further cooperate... Figure 4 As shown, the control unit 4 is electrically connected to the heat melter 111, the electronically controlled suction nozzle 2, and the suction device 3 of the base 11 of the main body 1, so as to control the heat melter 111 to heat up, control the electronically controlled suction nozzle 2 to pass through the through hole 105 or retract into the hollow base 10, and control the suction device 3 to provide negative pressure suction through the electronically controlled suction nozzle 2; wherein when the control unit 4 executes the heat melting procedure, it first controls the electronically controlled suction nozzle 2 to pass through the through hole 105 of the hollow base 10, so that it is positioned above the heat melter 111 of the base 11, and then controls the suction device 3 to provide negative pressure suction through the electronically controlled suction nozzle 2, while simultaneously controlling the heat melter 111 to heat up.

[0044] In another embodiment, the control unit 4 has two built-in heat-melting processes. The first heat-melting process is as described above and will not be repeated here. The second heat-melting process follows the first heat-melting process. That is, after the control unit 4 controls the heat-melting device 111 to heat for a certain period of time, it controls the electronically controlled suction nozzle 2 to retract into the hollow base 10, but continues to control the heat-melting device 111 to heat. This is the second heat-melting process. The control unit 4 can control the electronically controlled suction nozzle 2 to retract into the hollow base 10 in the second heat-melting process in a passive or active manner. The passive retraction method is that the control unit 4 controls the electronically controlled suction nozzle 2 to retract into the hollow base 10 only after receiving a notification or instruction to retract the electronically controlled suction nozzle 2. The specific method is detailed below. The active retraction method further sets a negative pressure threshold in the control unit 4 and further connects it to the negative pressure detector 31. The control unit 4 reads the negative pressure value of the electronically controlled suction nozzle 2 detected by the negative pressure detector 31, and when the negative pressure value reaches the negative pressure threshold set by the control unit 4, it automatically controls the electronically controlled suction nozzle 2 to retract from the through hole 105 into the hollow base 10.

[0045] Cooperate Figure 4 As shown, the aforementioned control interface 5 is disposed on the hollow base 10 and electrically connected to the control unit 4, and as... Figure 1 and Figure 2 As shown, the control interface 5 includes four buttons and a heating time display 55, all of which are electrically connected to the control unit 4. Figure 1 Viewed from the perspective of the view, each of the buttons, from left to right, can be a suction / heat melt control button 51, a suction control button 52, a heating time increase button 53, and a heating time decrease button 54; and the heating time display unit 55 can be provided on one side of the suction control button 52, the heating time increase button 53, and the heating time decrease button 54.

[0046] The control unit 4 can determine whether the suction / heat melt control button 51 is pressed and the number of times it is pressed, thereby controlling the electronic suction nozzle 2 to extend or retract from the hollow base 10 through the through hole 105. Therefore, by passively retracting the electronic suction nozzle 2, the control unit 4 can determine whether the suction / heat melt control button 51 is pressed. If so, the control unit 4 receives a notification or instruction and then controls the electronic suction nozzle 2 to retract from the through hole 105 into the hollow base 10. Furthermore, when the control unit 4 determines that the suction control button 52 is pressed, it controls the suction device 3 to provide negative pressure suction through the electronic suction nozzle 2. The control unit 4 can also determine whether the heating time increase button 53 and the heating time decrease button 54 are pressed and the number of times they are pressed, thereby increasing or decreasing the heating time of the heat melter 111. The heating time display unit 55 displays the heating time of the heat melter 111 controlled by the control unit 4.

[0047] The above is a structural description of the partially sealable vacuum packaging machine of the present invention. The operation of the partially sealable vacuum packaging machine will be further described below with reference to Figures 5(a)-5(d).

[0048] Please refer to the following first. Figure 1 As shown in Figure 5(a), in use, the user can first press the nozzle / heat melt control button 51 on the control interface 5 to notify the control unit 4 to control the electronically controlled nozzle 2 to pass through the through hole 105 into the hollow base 10, so that the electronically controlled nozzle 2 is positioned on the heat melter 111. Then, the plastic bag 6 containing ingredients or food is placed on the heat melter 111 and each of the isolation parts 112 on the base 11 of the main body 1, and the electronically controlled nozzle 2 is inserted. Then, the upper cover 12 is pivoted toward the base 11 to allow... Figure 1 The two fasteners 123 shown are fastened into the corresponding fastener holes 113 to lock the top cover 12 to the base 11. The bag body 6 is fixed by the heat melter 111, the barrier 121, the isolation part 112, and the sealing part 122. At this time, the electronically controlled suction nozzle 2 is located between the heat melter 111 and the barrier 121.

[0049] Cooperate Figure 2 As shown, the user can press the suction control button 52 to instruct the control unit 4 to control the suction device 3 to provide negative pressure suction through the electronically controlled suction nozzle 2, thereby sucking the air out of the bag body 6. At this time, as shown in Figures 5(a) and 5(b), the air in the bag body 6 is gradually sucked out of the bag body 6 by the suction device 3. At the same time, the control unit 4 controls the heat sealer 111 to heat the outer part 62 of the bag opening 61 of the heat-sealed bag body 6 that does not overlap with the electronically controlled suction nozzle 2, leaving a portion of the bag opening 61' at the middle section where the bag opening 61 of the bag body 6 overlaps with the electronically controlled suction nozzle 2. In this way, when the heat sealer 111 heats and seals the bag body 6, because the electronically controlled suction nozzle 2 is still sandwiched between the heat sealer 111 and the barrier member 121 and has not left the bag opening 61, the bag body 6 is only partially sealed to form the portion of the bag opening 61', which can improve the flexibility of packaging ingredients or food.

[0050] Please refer to Figures 5(c) and 5(d) for further details. Figure 2As shown, if the user wishes to further completely seal the bag opening, the second heat-sealing process can be continued. That is, after the control unit 4 controls the heat-sealing device 111 to heat for a period of time, it can determine whether the suction nozzle / heat-sealing control button 51 has been pressed again, or read the negative pressure value of the electronically controlled suction nozzle 2 detected by the negative pressure detector 31 when it reaches the negative pressure threshold. Then, the control unit controls the electronically controlled suction nozzle 2 to retract into the hollow seat 10 of the main body 1, and continues to control the heat-sealing device 111 to heat and seal the part of the bag opening 61' that has not yet been heat-sealed, and completely seal the bag 6, as shown in Figure 5(d).

[0051] Compared to the present invention, when a traditional suction-type vacuum packaging machine seals a specific type of packaging bag, such as a textured vacuum packaging bag, outside air can re-enter the bag from the portion of the bag opening that does not overlap with the suction nozzle when the suction nozzle draws air from inside the bag, making a complete vacuum seal impossible. Furthermore, as shown in the above description of the operation of the partially sealing vacuum packaging machine of the present invention, along with Figures 5(a) and 5(c), since the outer portion 62 of the bag opening 61 that does not overlap with the electrically controlled suction nozzle 2 is first heat-sealed, outside air will not re-enter the bag 6. Therefore, after partially sealing a textured vacuum packaging bag, the electrically controlled suction nozzle 2 can smoothly draw air from inside the bag 6, easily achieving a vacuum seal.

[0052] Traditional suction-type vacuum packaging machines typically have a fixed heating time. Therefore, when heat-sealing inward-folded vacuum bags and regular packaging bags, it's obvious that the inward-folded vacuum bags, due to their uneven thickness at the opening, cannot be successfully heat-sealed in a single operation. Although an extended heating time can be used for heat sealing, this extended heating time is prone to melting the opening of regular packaging bags, leading to heat-sealing failure. This invention, with its heating time increase button 53, heating time decrease button 54, and heating time display 55, allows users to easily adjust the heating time according to the type of bag being sealed, ensuring successful sealing of different packaging bags.

[0053] As described above, the partially sealable vacuum packaging machine of the present invention is characterized by the control unit maintaining the electrically controlled suction nozzle protruding through the through hole while the heat melter is heated. Therefore, during the heat-sealing and pressing of a bag fitted with the electrically controlled suction nozzle, the nozzle remains between the heat melter and the barrier and does not leave the bag opening, resulting in only a partial seal. This improves the flexibility of packaging ingredients or food. Afterward, the partially sealed bag can be further vacuumed by the suction device through the electrically controlled suction nozzle, preventing outside air from re-entering the bag. Furthermore, the user can adjust the heating time of the heat melter controlled by the control unit, allowing for the partial sealing of various plastic bags using this partially sealable vacuum packaging machine, thus improving vacuum packaging efficiency.

[0054] The above description only illustrates preferred embodiments of the present invention and should not be construed as limiting the scope of the claims. Any equivalent structural or procedural modifications made using this specification are included within the patent protection scope of the present invention.

Claims

1. A vacuum packaging machine capable of partial sealing, characterized in that: Include A main body, which includes A hollow seat body, one of its front side walls forms a through hole; A base extending forward from the bottom of the hollow seat, and a heat fusion device provided on one of its upper surfaces; and A top cover is pivotally connected to two opposite outer sides of the hollow base, and a barrier is provided on its lower surface; wherein when the top cover pivots toward the base, the barrier and the hot melt abut against each other; An electrically controlled suction nozzle is disposed within the hollow base and extends out of or retracts into the hollow base through the through hole; wherein, when the electrically controlled suction nozzle extends out of the through hole, it is positioned above the hot melt machine; and A suction device is disposed within the hollow base and connected to the electrically controlled suction nozzle to provide negative pressure suction; and A control unit is disposed in the hollow seat and electrically connected to the heat melter, the electronically controlled suction nozzle and the suction device; wherein when the control unit controls the electronically controlled suction nozzle to pass through the through hole and controls the suction device to provide negative pressure suction through the electronically controlled suction nozzle, the heat melter is heated.

2. The partially sealable vacuum packaging machine according to claim 1, characterized in that... The control unit controls the hot melter to heat for a period of time, then controls the electronically controlled suction nozzle to retract into the hollow base, and continues to control the hot melter to heat.

3. The partially sealable vacuum packaging machine according to claim 2, characterized in that... The suction device further includes a negative pressure detector, which is connected in series between the suction device and the electrically controlled suction nozzle to detect the negative pressure value of the electrically controlled suction nozzle and is electrically connected to the control unit; and The control unit is set with a negative pressure threshold and reads the negative pressure value of the electronically controlled nozzle detected by the negative pressure detector in real time. When the control unit determines that the negative pressure value of the electronically controlled nozzle detected by the negative pressure detector reaches the negative pressure threshold, it controls the electronically controlled nozzle to retract into the main body and continues to control the heating of the hot melt.

4. The partially sealable vacuum packaging machine according to claim 2, characterized in that... It also includes a nozzle / heat melt control button, which is electrically connected to the control unit. The control unit determines when the nozzle / heat melt control button is pressed and controls the electronically controlled nozzle to retract into the hollow base of the main body.

5. The partially sealable vacuum packaging machine according to any one of claims 1-4, characterized in that... It also includes a control interface, which is located on the hollow base of the main body and electrically connected to the control unit, and includes a suction control button, which is electrically connected to the control unit. When the suction control button is pressed, the control unit controls the suction device to provide negative pressure suction through the electronically controlled nozzle.

6. The partially sealable vacuum packaging machine according to claim 5, characterized in that... The control interface system further includes: A heating time increase button notifies the control unit to increase the heating time of the hot melter. A heating time reduction button instructs the control unit to reduce the heating time of the heat melter; and A heating time display unit is used to display the heating time of the heat melter controlled by the control unit.

7. The partially sealable vacuum packaging machine according to any one of claims 1-4, characterized in that... The base further includes at least one insulating portion disposed on the upper surface of the base and located in front of the hot melter; and The cover further includes a sealing member disposed on the lower surface of the cover and located in front of the barrier member; wherein when the cover pivots toward the base, the sealing member and the at least one isolation portion abut against each other.

8. The partially sealable vacuum packaging machine according to claim 7, characterized in that... The base further includes two snap-fit ​​holes, which are recessed at intervals on the upper surface of the base and located on two opposite sides of the hot melt device; and The upper cover further includes two fasteners corresponding to the two buckle holes of the base. These fasteners are respectively spaced apart on the lower surface of the upper cover and located on two opposite sides of the barrier. When the upper cover pivots toward the base, each of the fasteners is engaged with the corresponding buckle hole of the base.

9. The partially sealable vacuum packaging machine according to any one of claims 1-4, characterized in that... The top and bottom sidewalls of one of the electronically controlled nozzles are connected to form two notches.

10. The partially sealable vacuum packaging machine according to any one of claims 1-4, characterized in that... The hollow base system of the main body further includes a water collection box, which is disposed on a rear side wall of the hollow base and connected in series between the electronically controlled suction nozzle and the suction device.

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