Forming and longitudinal sealing device of packaging machine and packaging machine

Abstract

The utility model discloses a forming and longitudinal sealing device of a packaging machine and the packaging machine, and relates to the technical field of packaging equipment. Through the cooperation of the driving piece and the connecting piece, the connecting piece can move relative to the mounting part, the paper feeding roller is fixed to the connecting piece and located on one side of the forming device, and therefore the paper feeding roller can be driven by the driving piece and move relative to the forming device so as to adjust the included angle between the tangent line, connected with the vertex of the forming device, of the paper feeding roller and the horizontal direction; by increasing the degree of the included angle, the tensioning degree of the packaging film in the packaging process can be reduced, the longitudinal sealing width can be increased, the situation that the packaging film is snapped is avoided, the quality of packaged products is improved, and it is guaranteed that the packaging process is conducted smoothly.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and more specifically, to a forming and sealing device for a packaging machine and a packaging machine. Background Technology

[0002] Packaging machines are automated sealing devices widely used in food, pharmaceutical, daily chemical, electronics, and chemical industries. They offer advantages such as efficient sealing, extended shelf life, and improved product appearance. Common packaging machines include eight-way packaging machines, vacuum packaging machines, and wrapping machines, with eight-way packaging machines being particularly prevalent in the food industry. The packaging process of an eight-way packaging machine involves a robotic arm placing the formed product into a paper bag former, followed by a conveyor belt transporting the product through a longitudinal sealing mechanism for longitudinal sealing, and finally, a transverse sealing mechanism for transverse sealing, completing the packaging. However, existing eight-way packaging machines are prone to issues such as excessively narrow longitudinal seals and / or torn packaging film, affecting packaging quality requirements and even delaying the packaging process.

[0003] In view of this, this utility model is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a forming and longitudinal sealing device for a packaging machine and a packaging machine.

[0005] This utility model is implemented as follows:

[0006] In a first aspect, this utility model provides a forming and longitudinal sealing device for a packaging machine, including a support, and a forming mechanism and a longitudinal sealing mechanism mounted on the support.

[0007] The forming mechanism includes a paper feed roller, a forming device, and connecting parts. The support includes a fixedly connected support part and a mounting part. A driving part is provided on the mounting part. The driving part drives the connecting parts to move relative to the mounting part. The two ends of the paper feed roller are respectively connected to two connecting parts. The forming device and the longitudinal sealing mechanism are both provided on the mounting part. The longitudinal sealing mechanism and the connecting parts are located at opposite ends of the forming device.

[0008] The angle between the tangent of the paper feed roller and the vertex of the forming device and the horizontal direction is less than or equal to 165°. The connector can adjust the gap between the paper feed roller and the forming device inlet, and its maximum adjustable gap is such that the angle between the tangent of the forming device vertex and the paper feed roller and the horizontal direction is 140° to 165°.

[0009] In an optional implementation, the gap between the inlet of the forming device and the paper feed roller is less than or equal to 380 mm.

[0010] In an optional embodiment, the length of the connector is 600–800 mm.

[0011] In an optional embodiment, the molding mechanism further includes a transmission component, which is fixedly connected to the connecting component and is in transmission cooperation with the driving component.

[0012] In optional embodiments, the motion transmission methods of the drive and transmission components include any one of toothed meshing, chain drive, or magnetic coupling.

[0013] In an optional embodiment, the motion transmission method of the driving component and the transmission component is tooth meshing, with the driving component being a driving gear and the transmission component being a rack.

[0014] In an optional embodiment, both the molding unit and the longitudinal sealing mechanism are disposed on the surface of the mounting portion, and the driving member is located on the side surface of the mounting portion so that the driving member drives the connecting member to move closer to or away from the molding unit.

[0015] In an optional embodiment, a plurality of limiting members are provided on the side of the mounting part near the paper feed roller. The plurality of limiting members form a limiting area on the side surface of the mounting part. One end of the connector cooperates with the drive member, and the other end is accommodated in the limiting area so that the connector can move relative to the mounting part.

[0016] In an optional implementation, the number of limiting members is 2 to 10.

[0017] Secondly, this utility model provides a packaging machine, including the apparatus as described in any of the foregoing embodiments.

[0018] This utility model has the following beneficial effects:

[0019] This utility model provides a forming and longitudinal sealing device for a packaging machine and a packaging machine. Through the cooperation of a driving component and a connecting component, the connecting component can move relative to the mounting part. Since the paper feeding roller is fixed on the connecting component and is located on one side of the forming device, the paper feeding roller can be driven by the driving component and moved relative to the forming device to adjust the angle between the tangent line connecting the vertex of the paper feeding roller and the forming device and the horizontal direction. By increasing the degree of this angle, the tension of the packaging film during the packaging process can be reduced, the longitudinal sealing width can be increased, and the situation of the packaging film being torn can be avoided, thereby improving the quality of the packaged product and ensuring the smooth progress of the packaging process. Attached Figure Description

[0020] 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 on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1A schematic diagram of the forming and longitudinal sealing device of the packaging machine provided in an embodiment of this utility model;

[0022] Figure 2 for Figure 1 Enlarged view of the A-structure in the middle;

[0023] Figure 3 This is a partial structural schematic diagram of the molding mechanism provided in an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram illustrating the structural fit between the molding device and the connector provided in an embodiment of the present invention.

[0025] Explanation of key component symbols: 100 - Forming and sealing device of packaging machine; 110 - Bracket; 111 - Support part; 112 - Mounting part; 113 - Drive component; 114 - Limiting component; 120 - Forming mechanism; 121 - Paper feed roller; 122 - Forming device; 123 - Connecting component; 124 - Transmission component; 130 - Sealing mechanism; α - Included angle; H - Gap; 200 - Packaging film. Detailed Implementation

[0026] 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 embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] First Embodiment

[0033] Please refer to Figure 1 This embodiment provides a forming and sealing device 100 for a packaging machine, including a support 110, and a forming mechanism 120 and a sealing mechanism 130 mounted on the support 110.

[0034] In this embodiment, the bracket 110 includes a support portion 111 and a mounting portion 112 that are fixedly connected. The mounting portion 112 is used to provide a mounting support position for the molding mechanism 120 and the longitudinal sealing mechanism 130, and the support portion 111 is used to support the mounting portion 112.

[0035] In this embodiment, to facilitate the installation and use of the forming mechanism 120 and the longitudinal sealing mechanism 130, the mounting part 112 has a mounting surface and a side surface. The two opposite ends of the mounting surface of the mounting part 112 are the forming end and the longitudinal sealing end, respectively. The forming end side is mainly provided with the forming mechanism 120, and the longitudinal sealing end side is mainly provided with the longitudinal sealing mechanism 130.

[0036] Please refer to Figure 2 and Figure 3Specifically, the forming mechanism 120 includes a paper feed roller 121, a forming device 122, and a connector 123.

[0037] In this embodiment, to improve packaging efficiency and achieve batch packaging, there are multiple forming devices 122 and multiple longitudinal sealing mechanisms 130, with the same number of both, arranged in a one-to-one correspondence. Multiple forming devices 122 are fixed to the mounting surface of the mounting portion 112, and the axial direction of each forming device 122 is parallel to the direction from the forming end to the longitudinal sealing end. Multiple longitudinal sealing mechanisms 130 are arranged in a one-to-one correspondence with the forming devices 122 at the longitudinal sealing end, so that the packaging film 200 processed by the forming device 122 is longitudinally sealed at the longitudinal sealing mechanism 130.

[0038] In this embodiment, in order to save installation space and improve the compactness between the various structures, a driving member 113 is provided on the side surface of the mounting part 112. Specifically, the driving member 113 is provided at the forming end of the mounting part 112. The driving member 113 can drive the connecting member 123 to move relative to the mounting part 112. Since the two ends of the paper feed roller 121 are respectively connected to the two connecting members 123, when the driving member 113 drives the connecting member 123 to move relative to the mounting part 112, it can simultaneously drive the paper feed roller 121 to move towards or away from the forming device 122.

[0039] Understandably, in this embodiment, the forming and sealing device 100 of the packaging machine is fixed by two connecting members 123 because the paper feed roller 121 is fixed. The connecting members 123 can be driven by the driving member 113, which is located on the forming end side of the mounting part 112. At the same time, the sealing mechanism 130 is located on the sealing end side of the mounting part 112. Therefore, the sealing mechanism 130 and the connecting members 123 are located at opposite ends of the forming device 122. During the packaging process, the packaging film 200 is pulled from the forming end side and overlapped at the apex of the forming device 122 by the paper feed roller 121. After being shaped by the forming device 122, it reaches the sealing mechanism 130 for sealing.

[0040] In this embodiment, the forming device 122 is a U-shaped forming device. In other embodiments, the forming device 122 may also be a triangular forming device or a forming device of other shapes. The apex of the U-shaped forming device is the highest point near the entrance after it is installed and fixed. That is, the apex of the U-shaped forming device is the first position where the packaging film 200 contacts the forming device 122 after being pulled by the paper feed roller 121.

[0041] Through research, the inventors discovered that the reason why existing eight-stage packaging machines experience problems such as excessively narrow longitudinal sealing width and / or breakage of the packaging film 200 during the packaging process is related to the distance between the paper feed roller 121 and the forming device 122. When the distance between the paper feed roller 121 and the forming device 122 is too close, the angle α between the inclined surface formed by the packaging film 200 after contacting the forming device 122 and the horizontal plane is too small, resulting in a high tension of the packaging film 200, a narrow longitudinal sealing width, and the packaging film 200 being pulled apart due to being too tight. However, if the distance between the paper feed roller 121 and the forming device 122 is too far, the angle α between the inclined surface formed by the packaging film 200 after contacting the forming device 122 and the horizontal plane will be too large, the packaging film 200 will be looser, and the longitudinal sealing width of the packaging film 200 will be wider.

[0042] Please refer to Figure 2 Therefore, the inventors propose that the angle α between the tangent connecting the vertex of the paper feed roller 121 and the forming device 122 and the horizontal direction should be less than or equal to 165°, preferably 155° to 165°. This angle α is the angle formed at the vertex of the forming device 122 after the packaging film 200 is pulled by the paper feed roller 121 and comes into contact with it. By controlling the angle α within the above range, the tension of the packaging film 200 between the paper feed roller 121 and the forming device 122 is more suitable, and the longitudinal sealing width is appropriate when it is conveyed to the longitudinal sealing mechanism 130, thereby improving the packaging quality of the product.

[0043] Please refer to Figure 4 Furthermore, in order to better control the included angle α within the above range, in this embodiment, the gap H between the inlet of the forming device 122 and the paper feeding roller 121 is less than or equal to 380 mm, preferably 300 to 380 mm.

[0044] In this embodiment, to ensure that the parameters of the included angle α and the gap H are within the above-mentioned range, the inventors extended the length of the connector 123 to 600-800 mm, preferably 700 mm. By extending the length of the connector 123, the distance that the connector 123 can move relative to the mounting part 112 is extended, and the gap H between the paper feed roller 121 fixedly connected to the connector 123 and the forming device 122 is extended, thereby increasing the angle α between the tangent of the vertex connection between the paper feed roller 121 and the forming device 122 and the horizontal direction.

[0045] In this embodiment, in order to ensure that the movement of the connector 123 is more stable, the forming mechanism 120 also includes a transmission component 124, which is fixedly connected to the connector 123 and is in transmission cooperation with the drive component 113.

[0046] In this embodiment, the side of the connector 123 away from the paper feed roller 121 is provided with a notch for connecting with the transmission member 124. The transmission member 124 is accommodated in the notch and is fixedly connected to the connector 123 by bolts.

[0047] In some embodiments, the length of the notch is 250-350 mm, the length of the transmission member 124 is 250-350 mm, and the length of the transmission member 124 is less than or equal to the length of the notch, so that the packaging transmission member 124 can be accommodated within the notch.

[0048] In this embodiment, the total length of the connector 123 is 700mm, the length of the notch in the connector 123 is 300mm, and the length of the transmission component 124 is 295mm.

[0049] In this embodiment, to ensure a stable connection between the transmission component 124 and the connecting component 123, two bolts are respectively provided at both ends of the transmission component 124 to fix it to the connecting component 123. In other embodiments, as long as the transmission component 124 and the connecting component 123 can be fixedly connected, the specific connection method and the number of fixing bolts are not limited.

[0050] In this embodiment, the motion transmission method of the driving member 113 and the transmission member 124 is tooth meshing. The driving member 113 is a driving gear and the transmission member 124 is a rack. When the driving gear is rotated, the rack can move under the drive of the driving gear, thereby driving the connecting member 123 to move relative to the mounting part 112.

[0051] In this embodiment, in order to ensure the stability of the movement of the connector 123, a plurality of limiting members 114 are provided on the side of the mounting part 112 near the paper feed roller 121. The plurality of limiting members 114 form a limiting area on the side surface of the mounting part 112. One end of the connector 123 cooperates with the driving member 113, and the other end is accommodated in the limiting area so that the connector 123 can move relative to the mounting part 112.

[0052] Specifically, there are four limiting members 114, which are distributed in pairs at the upper and lower ends of the connector 123 and are staggered to ensure the stable installation of the connector 123.

[0053] Furthermore, in this embodiment, the limiting member 114 is a limiting roller. The limiting roller can not only limit the connecting member 123 to prevent it from shifting relative to the side surface of the mounting part 112 during its movement, but also assist the connecting member 123 in moving to ensure the temperature movement of the paper feed roller 121.

[0054] In this embodiment, the structure of the forming device 122, the longitudinal sealing mechanism 130, the paper feeding roller 121, etc. can adopt the structure of existing packaging machines.

[0055] Furthermore, this utility model also provides a packaging machine, including the forming and longitudinal sealing device 100 of the above-mentioned packaging machine, and may also include the necessary structures required by the packaging machine such as a raw material feeding device, a transverse sealing device, and a material storage and retrieval device.

[0056] The working principle of the forming and sealing device 100 of the packaging machine provided in this embodiment is as follows:

[0057] Please refer to Figure 1 and Figure 2 By operating the drive member 113 (drive gear), the transmission member 124 (rack) moves along the axis of the forming device 122 away from the longitudinal sealing mechanism 130. The connecting member 123 moves synchronously with the transmission member 124. Therefore, the connecting member 123 drives the paper feeding roller 121 to move away from the forming device 122, so as to control the angle α between the tangent of the paper feeding roller 121 and the vertex of the forming device 122 and the horizontal direction to be 160°, and the gap H between the inlet of the forming device 122 and the paper feeding roller 121 to be 340mm. After being unfolded and pulled by the paper feed roller 121, the packaging film 200 contacts the apex of the forming device 122 and extends along the top of the forming device 122, so that the packaging film 200 forms an included angle α of 160° at the apex of the forming device 122. The tension of the packaging film 200 between the paper feed roller 121 and the forming device 122 is appropriate, and the packaging film 200 is not easy to tear. When it continues to extend to the longitudinal sealing mechanism 130, the longitudinal sealing mechanism 130 performs longitudinal sealing on the packaging film 200, and the obtained longitudinal sealing width is appropriate, which is beneficial to the packaging quality of the packaged product.

[0058] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this 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 forming and longitudinal sealing device for a packaging machine, characterized in that, Includes a bracket, and a forming mechanism and a longitudinal sealing mechanism mounted on the bracket; The forming mechanism includes a paper feed roller, a forming device, and a connecting member. The bracket includes a support part and a mounting part that are fixedly connected. A driving member is provided on the mounting part. The driving member drives the connecting member to move relative to the mounting part. The two ends of the paper feed roller are respectively connected to the two connecting members. The forming device and the longitudinal sealing mechanism are both provided on the mounting part. The longitudinal sealing mechanism and the connecting member are respectively located at opposite ends of the forming device. The angle between the tangent connecting the vertex of the paper feed roller and the vertices of the forming device and the horizontal direction is less than or equal to 165°.

2. The apparatus according to claim 1, characterized in that, The gap between the inlet of the forming device and the paper feed roller is less than or equal to 380 mm.

3. The apparatus according to claim 1 or 2, characterized in that, The length of the connector is 600-800 mm.

4. The apparatus according to claim 1, characterized in that, The forming mechanism further includes a transmission component, which is fixedly connected to the connecting component and is in transmission cooperation with the driving component.

5. The apparatus according to claim 4, characterized in that, The motion transmission methods of the drive component and the transmission component include any one of toothed meshing, chain drive, or magnetic coupling.

6. The apparatus according to claim 5, characterized in that, The motion transmission method of the driving component and the transmission component is tooth meshing, the driving component is a driving gear, and the transmission component is a rack.

7. The apparatus according to claim 1, characterized in that, Both the molding device and the longitudinal sealing mechanism are disposed on the surface of the mounting portion, and the driving member is located on the side surface of the mounting portion so that the driving member drives the connecting member to move closer to or away from the molding device.

8. The apparatus according to claim 7, characterized in that, The mounting part is provided with a plurality of limiting members on the side near the paper feed roller. The plurality of limiting members form a limiting area on the side surface of the mounting part. One end of the connector cooperates with the driving member, and the other end is accommodated in the limiting area so that the connector can move relative to the mounting part.

9. The apparatus according to claim 8, characterized in that, The number of limiting components is 2 to 10.

10. A packaging machine, characterized in that, Includes the apparatus as described in any one of claims 1 to 9.

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