A packaging bag mouth shaping, degassing and heat sealing device

Abstract

The utility model discloses a bag mouth shaping, degassing and heat-sealing device for packaging bags, which belongs to the technical field of automated packaging equipment, and includes a lifting mechanism, a bag-supporting and air-exhausting mechanism and a heat-sealing mechanism slidably connected to the lifting mechanism, and an exhaust mechanism is also arranged below the heat-sealing mechanism, and the exhaust mechanism is slidably connected to the lifting mechanism, and includes symmetrically arranged exhaust shaping parts and an exhaust driving part connected thereto and driving two exhaust shaping parts to open and close synchronously; when exhaust shaping is required, the exhaust driving part drives the two exhaust shaping parts to approach each other to squeeze the surface of the packaging bag, and then the lifting mechanism drives the exhaust mechanism to move as a whole, so that the exhaust shaping parts roll closely against the surface of the packaging bag to achieve exhaust and shaping. The utility model can assist the bag-supporting and air-exhausting mechanism to discharge most of the gas in the packaging bag by arranging the exhaust mechanism, so as to shorten the vacuuming time of the packaging bag and improve the packaging efficiency.

Description

Technical Field

[0001] The utility model relates to the field of automatic packaging machines, in particular to a packaging bag opening shaping, degassing and heat-sealing device. Background Art

[0002] With the development of industrial technology, the production of packaging products is becoming more and more intelligent and automated to meet the needs of manufacturers to improve production efficiency and expand economic benefits. In the process of automated packaging of materials, it is necessary to degas and seal the bag mouth to achieve vacuum packaging of the product.

[0003] In the prior art, a Chinese utility model patent with an announcement date of October 12, 2018 and an announcement number of CN207956176U discloses a vacuum heat packaging device, and its technical solution is as follows: the device includes a bag sealing mechanism and a moving mechanism, and the bag sealing mechanism is slidably connected to the moving mechanism; the bag sealing mechanism includes an outer cover, a base frame, a servo bag holding mechanism and a sealed vacuum heat sealing mechanism, and the servo bag holding mechanism and the sealed vacuum heat sealing mechanism are fixed on the base frame, and the moving mechanism includes a base plate, a translation guide rail, a translation slider, a translation servo motor, a translation screw, a support bottom plate, a support beam, a first vertical guide rail, a vertical screw, a vertical movement servo motor and a vertical movement slider.

[0004] The vacuum heat sealing device in the above patent can remove the air in the plastic packaging bag and perform the bag sealing operation. However, the vacuuming efficiency is low if the packaging bag is only vacuumed by the sealed vacuum heat sealing mechanism. In view of this, the present invention proposes a packaging bag mouth shaping degassing heat sealing device. Utility Model Content

[0005] The utility model aims to solve the problem of low vacuuming efficiency in the vacuuming heat sealing device for packaging bags in the prior art, and proposes a bag mouth shaping degassing heat sealing device for packaging bags. The device is provided with an exhaust mechanism, which can discharge most of the gas in the packaging bag through the exhaust mechanism while vacuuming, so as to shorten the vacuuming time of the packaging bag and improve the packaging efficiency.

[0006] In order to achieve the above utility model purpose, the technical solution of the utility model is as follows:

[0007] A packaging bag mouth shaping, degassing and heat-sealing device comprises a lifting mechanism and a bag-supporting and air-evacuating mechanism and a heat-sealing mechanism slidably connected to the lifting mechanism; an exhaust mechanism is also arranged below the heat-sealing mechanism; the exhaust mechanism is slidably connected to the lifting mechanism and comprises symmetrically arranged exhaust shaping parts and an exhaust driving part connected to the exhaust shaping parts and driving the two exhaust shaping parts to open and close synchronously; when exhaust shaping is required, the exhaust driving part drives the two exhaust shaping parts to approach each other to squeeze the surface of the packaging bag, and then the lifting mechanism drives the exhaust mechanism to move as a whole, so that the exhaust shaping parts roll close to the surface of the packaging bag to achieve exhaust and shaping.

[0008] Furthermore, the exhaust shaping member is a brush roller, a sponge roller or a rubber cylinder.

[0009] Furthermore, the exhaust drive component is a linear slide cylinder.

[0010] Furthermore, the heat sealing mechanism includes a heat sealing base, a pair of heat sealing knife seats arranged on the heat sealing base, and a heat sealing driving member connected thereto, and the heat sealing driving member drives the two heat sealing knife seats to open and close synchronously.

[0011] Furthermore, a sealing mechanism is arranged below the heat-sealing base, and the sealing mechanism comprises two symmetrically arranged sealing members and a sealing driving member for driving the two sealing members to open and close synchronously.

[0012] Furthermore, the bag-supporting and air-evacuating mechanism includes a bag-supporting driving assembly and two bag-supporting and air-evacuating pipes connected thereto, and the bag-supporting driving assembly drives the two bag-supporting and air-evacuating pipes to move relatively closer to or farther away from each other in a horizontal direction.

[0013] Furthermore, the bag-holding drive assembly includes a linear guide rail, a synchronous pulley, a synchronous belt and a servo motor, and the synchronous belt is connected to two synchronous pulleys; the two bag-holding air extraction pipes are both slidably connected to the linear guide rail and are respectively connected to the synchronous belts on the upper and lower sides.

[0014] Furthermore, the portion of the bag-supporting air extraction pipe inserted into the packaging bag is in a flat-mouth shape.

[0015] Furthermore, the lifting mechanism includes a guide member and a lifting drive device, the lifting drive device includes a lifting drive motor, a synchronous pulley driven by the lifting drive motor, and a synchronous belt wound around the synchronous pulley; the bases of the bag holding and air extraction mechanism, the heat sealing mechanism and the exhaust mechanism are all provided with moving parts that cooperate with the guide member, and the bag holding and air extraction mechanism, the heat sealing mechanism and the exhaust mechanism are all fixedly connected to the synchronous belt through the base.

[0016] Furthermore, the guide member is a guide column arranged in the vertical direction, and the moving member is a V-groove wheel.

[0017] In summary, the utility model has the following advantages:

[0018] 1. In addition to the vacuum heat sealing mechanism, the utility model is also provided with an exhaust mechanism to assist the bag-supporting and exhaust mechanism to exhaust most of the gas in the packaging bag, so as to shorten the vacuuming time of the packaging bag and improve the packaging efficiency;

[0019] 2. In the utility model, since the bag-supporting and air-exhausting mechanism, the heat-sealing mechanism and the exhaust mechanism are all connected to the lifting mechanism and driven by the lifting mechanism to perform reciprocating linear motion in the vertical direction, the heights of the bag-supporting and air-exhausting mechanism, the heat-sealing mechanism and the exhaust mechanism can be adjusted to adapt to packaging bags of different specifications, thereby improving the scope of application of the device;

[0020] 3. In the utility model, a sealing mechanism is provided below the heat sealing mechanism, and the sealing mechanism uses a silicone pressure plate to compact and seal the bag opening of the packaging bag, which can ensure that the packaging bag is sealed in a vacuum state and improve the sealing effect;

[0021] 4. In the utility model, the bag-supporting and air-exhausting pipe integrates the bag-supporting mechanism and the air-exhausting mechanism into one, making the bag-supporting and air-exhausting mechanism more streamlined and reducing the occupied space;

[0022] 5. In the utility model, the portion of the bag-supporting vacuum pipe inserted into the packaging bag is designed to be flat-mouthed, which reduces the volume of the vacuum pipe and improves the vacuuming effect;

[0023] 6. In the utility model, the lifting mechanism adopts a guide column and a V-shaped groove wheel structure to match each other, changing sliding into rolling, so that the movement of each mechanism is smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a top view of the utility model;

[0026] Figure 3 It is a side view of the utility model;

[0027] Figure 4 It is a front view of the utility model;

[0028] Figure 5 It is a structural front view of the heat sealing mechanism and the sealing mechanism of the utility model;

[0029] Figure 6 This is a structural front view of the exhaust mechanism of the utility model;

[0030] In the figure:

[0031] 1. lifting mechanism, 2. bag supporting and exhausting mechanism, 3. exhaust mechanism, 4. heat sealing mechanism, 5. sealing mechanism, 101. guide column, 102. V-groove wheel, 201. bag supporting driving assembly, 202. bag supporting and exhausting pipe, 2011. linear guide rail, 2012. synchronous pulley, 2013. synchronous belt, 2014. servo motor, 301. exhaust shaping part, 302. exhaust driving part, 401. heat sealing knife seat, 402. heat sealing driving part, 501. sealing part, 502. sealing driving part. DETAILED DESCRIPTION

[0032] It should be noted that the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should also be pointed out that in the description of the present invention, the terms "upward", "inverted", "horizontal", "vertical", "up", "down", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not explicitly or implicitly indicate that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0034] Example 1

[0035] As the most basic embodiment of the present utility model, Figures 1 to 6 As shown, this embodiment provides a bag mouth shaping, degassing and heat-sealing device for packaging bags, comprising a lifting mechanism 1 and a bag-supporting and air-evacuating mechanism 2, a heat-sealing mechanism 4 and an exhaust mechanism 3 slidably connected to the lifting mechanism 1; the exhaust mechanism 3 is arranged below the heat-sealing mechanism 4, and comprises exhaust shaping members 301 symmetrically arranged on both sides of the packaging bag and an exhaust driving member 302 connected thereto and driving the two exhaust shaping members 301 to open and close synchronously. When the packaging bag needs to be vented and shaped, the exhaust driving member 302 drives the two exhaust shaping members 301 to approach each other and squeeze the surface of the packaging bag, and then the lifting mechanism 1 drives the exhaust mechanism 3 to move in the vertical direction as a whole, so that the exhaust shaping members 301 roll closely against the surface of the packaging bag to achieve venting and shaping.

[0036] In the utility model, the bag-holding and air-exhausting mechanism 2 is used to vacuum the packaging bag while holding the bag, the heat-sealing mechanism 4 is used to heat-seal the bag mouth after the vacuum is completed, and the exhaust mechanism 3 can assist the bag-holding and air-exhausting mechanism 2 to exhaust most of the gas in the packaging bag, so as to shorten the vacuum time of the packaging bag and improve the packaging efficiency.

[0037] In addition, since the bag-holding and air-exhausting mechanism 2, the heat-sealing mechanism 4 and the exhaust mechanism 3 are all connected to the lifting mechanism 1 and driven by the lifting mechanism 1 to perform reciprocating linear motion in the vertical direction, packaging bags of different specifications can be adapted by individually adjusting the heights of the bag-holding and air-exhausting mechanism 2, the heat-sealing mechanism 4 and the exhaust mechanism 3, thereby expanding the scope of application of the device.

[0038] Example 2

[0039] As a preferred embodiment of the utility model, this embodiment provides a packaging bag mouth shaping degassing heat sealing device. On the basis of embodiment 1, the structure of the exhaust mechanism 3 is further described.

[0040] Preferably, Figure 6 As shown, in this embodiment, the exhaust shaping member 301 in the exhaust mechanism 3 can be a brush roller, a sponge roller or a rubber tube, the exhaust driving member 302 can be a linear slide cylinder, and the exhaust shaping member 301 is rotatably connected to the slider of the linear slide cylinder.

[0041] When exhaust shaping is required, the linear slide cylinder drives the two exhaust shaping parts 301 to approach each other and squeeze the surface of the packaging bag, and then the lifting mechanism 1 drives the exhaust mechanism 3 to move as a whole in the vertical direction, so that the exhaust shaping part 301 rolls close to the surface of the packaging bag to achieve auxiliary exhaust, and at the same time, it can also straighten the bag and play a shaping role on the bag body.

[0042] Example 3

[0043] As a preferred embodiment of the present utility model, this embodiment provides a packaging bag mouth shaping degassing heat sealing device. Based on the embodiment 1 or the embodiment 2, this embodiment further describes the structure of the heat sealing mechanism 4.

[0044] In this embodiment, Figure 5 As shown, the heat sealing mechanism 4 includes a heat sealing base, a pair of heat sealing knife seats 401 arranged on the heat sealing base and a heat sealing driving member 402 connected thereto, and the heat sealing driving member 402 drives the two heat sealing knife seats 401 to open and close synchronously in the horizontal direction.

[0045] Furthermore, a sealing mechanism 5 is provided at the bottom of the heat-sealing base, and the sealing mechanism 5 includes two symmetrically arranged sealing members 501 and a sealing driving member 502 for driving the two sealing members 501 to open and close synchronously.

[0046] In this embodiment, both the heat sealing driving member 402 and the sealing driving member 502 are cylinders. The sealing member 501 is a silicone pressure plate, which can ensure that the packaging bag is sealed in a sealed state and improve the vacuuming effect.

[0047] Example 4

[0048] As a preferred embodiment of the utility model, this embodiment provides a packaging bag mouth shaping degassing heat sealing device. On the basis of embodiment 3, this embodiment further describes the structure of the bag support and air extraction mechanism 2:

[0049] The bag-holding and air-exhausting mechanism 2 is located above the heat-sealing mechanism 4 and includes a bag-holding driving assembly 201 and two bag-holding and air-exhausting pipes 202 connected to the bag-holding driving assembly 201 . The bag-holding driving assembly 201 drives the two bag-holding and air-exhausting pipes 202 to move away from each other to achieve bag-holding.

[0050] Preferably, the bag-holding driving assembly 201 includes a linear guide rail 2011, a synchronous pulley 2012, a synchronous belt 2013 and a servo motor 2014, and the synchronous belt 2013 is connected between the two synchronous pulleys 2012; the two bag-holding exhaust pipes 202 are slidably connected to the linear guide rail 2011 through a slider, and are respectively connected to the synchronous belts 2013 on the upper and lower sides; the servo motor 2014 rotates to drive the synchronous belt 2013 to rotate around the synchronous pulley 2012, driving the two bag-holding exhaust pipes 202 to move closer to or away from each other in the horizontal direction along the linear slide rail.

[0051] The bag-supporting exhaust pipe 202 passes through the gap between the two heat-sealing knife seats 401 of the heat-sealing mechanism 4 and is inserted into the packaging bag. The bag-supporting exhaust pipe 202 is a hollow mechanism, which is connected to a vacuum generating device to generate negative pressure. Furthermore, in order to achieve a better exhaust effect, the portion of the bag-supporting exhaust pipe 202 inserted into the packaging bag is designed to be flat.

[0052] Example 5

[0053] As a preferred embodiment of the utility model, this embodiment provides a packaging bag mouth shaping degassing heat sealing device. On the basis of embodiment 4, this embodiment further describes the structure of the lifting mechanism 1:

[0054] In this embodiment, the lifting mechanism 1 includes a guide member and a lifting drive device. The bases of the bag-holding and air-exhausting mechanism 2, the heat-sealing mechanism 4 and the exhaust mechanism 3 are all provided with moving members that cooperate with the guide member, and the bag-holding and air-exhausting mechanism 2, the heat-sealing mechanism 4 and the exhaust mechanism 3 are equipped with separate lifting drive devices for lifting control.

[0055] Among them, the lifting drive device can adopt a linear lifter, a synchronous belt lifting device or other devices that can drive each mechanism to perform lifting motion along the guide member. Taking the synchronous belt lifting device as an example, the lifting drive device includes a lifting drive motor, a synchronous belt pulley driven to rotate by the lifting drive motor, and a synchronous belt wound around the synchronous belt pulley. The bag-supporting and air-evacuating mechanism 2, the heat-sealing mechanism 4 and the exhaust mechanism 3 are all fixedly connected to the synchronous belt through the base. The lifting drive motor drives the synchronous belt to move, thereby driving the moving parts on the bag-supporting and air-evacuating mechanism 2, the heat-sealing mechanism 4 and the exhaust mechanism 3 to perform linear motion along their respective guide members.

[0056] In this embodiment, the guide member is a guide column 101 arranged in the vertical direction, and the moving member is a V-groove wheel 102. The V-groove wheel 102 is in rolling connection with the guide column 101, so the lifting resistance is small and the movement is smoother.

[0057] The workflow of this utility model is as follows:

[0058] When the packaging bag is conveyed to the exhaust mechanism 3, the lifting mechanism 1 drives the bag-supporting and exhausting mechanism 2 to move downward along the guide pillar 101 as a whole, so that the lower end of the bag-supporting and exhausting pipe 202 passes through the heat-sealing mechanism 4 and is inserted into the packaging bag; then, the bag-supporting driving assembly 201 drives the two bag-supporting and exhausting pipes 202 to move away from each other to achieve the bag-supporting effect;

[0059] Then, the exhaust driving member 302 drives the two exhaust pressure rollers to approach each other and squeeze the surface of the packaging bag tightly, and moves downward as a whole under the drive of the lifting mechanism 1, so that the exhaust pressure rollers rotate and squeeze the surface of the packaging bag to achieve auxiliary exhaust;

[0060] At the same time, the lifting mechanism 1 drives the heat sealing mechanism 4 to move to the bag opening of the packaging bag, and the sealing driving member 502 drives the two sealing members 501 to approach each other, so that the sealing members 501 are pressed on both sides of the packaging bag;

[0061] At this time, the vacuum generating device starts, and the bag-supporting air extraction pipe 202 begins to extract air. After the air extraction is completed, the lifting drive drives the bag-supporting air extraction mechanism 2 to move upward so that the bag-supporting air extraction pipe 202 exits the packaging bag. At this time, the heat-sealing drive member 402 drives the two heat-sealing knife seats 401 to approach each other and complete the sealing.

[0062] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A packaging bag mouth shaping, degassing and heat-sealing device, comprising a lifting mechanism (1) and a bag-supporting and air-evacuating mechanism (2) and a heat-sealing mechanism (4) slidably connected to the lifting mechanism (1), characterized in that: An exhaust mechanism (3) is also provided below the heat sealing mechanism (4). The exhaust mechanism (3) is slidably connected to the lifting mechanism (1) and comprises symmetrically arranged exhaust shaping parts (301) and an exhaust driving part (302) connected thereto and driving the two exhaust shaping parts (301) to open and close synchronously. When exhaust shaping is required, the exhaust driving part (302) drives the two exhaust shaping parts (301) to move closer to each other to squeeze the surface of the packaging bag, and then the lifting mechanism (1) drives the exhaust mechanism (3) to move as a whole, so that the exhaust shaping parts (301) roll closely against the surface of the packaging bag to achieve exhaust and shaping.

2. A packaging bag mouth shaping, degassing and heat sealing device according to claim 1, characterized in that: The exhaust shaping member (301) is a brush roller, a sponge roller or a rubber cylinder.

3. A packaging bag mouth shaping, degassing and heat sealing device according to claim 1 or 2, characterized in that: The exhaust drive component (302) is a linear slide cylinder.

4. A packaging bag mouth shaping, degassing and heat sealing device according to claim 1, characterized in that: The heat sealing mechanism (4) comprises a heat sealing base, a pair of heat sealing knife seats (401) arranged on the heat sealing base, and a heat sealing driving member (402) connected thereto, wherein the heat sealing driving member (402) drives the two heat sealing knife seats (401) to open and close synchronously.

5. A packaging bag mouth shaping, degassing and heat sealing device according to claim 4, characterized in that: A sealing mechanism (5) is arranged below the heat-sealing base, and the sealing mechanism (5) comprises two symmetrically arranged sealing members (501) and a sealing driving member (502) for driving the two sealing members (501) to open and close synchronously.

6. A packaging bag mouth shaping, degassing and heat sealing device according to claim 1, characterized in that: The bag-supporting air extraction mechanism (2) comprises a bag-supporting driving component (201) and two bag-supporting air extraction pipes (202) connected thereto, and the bag-supporting driving component (201) drives the two bag-supporting air extraction pipes (202) to move relatively closer or farther in a horizontal direction.

7. A packaging bag mouth shaping, degassing and heat sealing device according to claim 6, characterized in that: The bag-supporting driving assembly (201) comprises a linear guide rail (2011), a synchronous pulley (2012), a synchronous belt (2013) and a servo motor (2014); the synchronous belt (2013) is connected to two synchronous pulleys (2012); and the two bag-supporting air extraction pipes (202) are both slidably connected to the linear guide rail (2011) and are respectively connected to the synchronous belts (2013) on the upper and lower sides.

8. A packaging bag mouth shaping, degassing and heat sealing device according to claim 6 or 7, characterized in that: The portion below the bag-supporting air extraction pipe (202) that is inserted into the packaging bag is in a flat-mouth shape.

9. The packaging bag mouth shaping, degassing and heat sealing device according to claim 1, characterized in that: The lifting mechanism (1) comprises a guide member and a lifting drive device, the lifting drive device comprising a lifting drive motor, a synchronous pulley driven to rotate by the lifting drive motor, and a synchronous belt wound around the synchronous pulley; the bases of the bag-supporting and air-evacuating mechanism (2), the heat-sealing mechanism (4) and the exhaust mechanism (3) are all provided with a moving member that cooperates with the guide member, and the bag-supporting and air-evacuating mechanism (2), the heat-sealing mechanism (4) and the exhaust mechanism (3) are all fixedly connected to the synchronous belt via the base.

10. A packaging bag mouth shaping, degassing and heat sealing device according to claim 9, characterized in that: The guide member is a guide column (101) arranged in the vertical direction, and the moving member is a V-groove wheel (102).

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