Packaging bag conveying device

Abstract

The utility model relates to the field of packaging and conveying, in particular to a packaging bag conveying device which comprises a base, a driving mechanism, a transmission mechanism, a conveying mechanism and a floating extrusion mechanism. The floating extrusion mechanism comprises a floating roller, and the floating roller extrudes the packaging bags filled with materials and conveyed on the conveying mechanism in a floating mode. The driving mechanism simultaneously drives the conveying mechanism and the floating roller to operate through the transmission mechanism and enables the linear rates of the conveying mechanism and the floating roller to be the same. When the packaging bag is conveyed, the floating roller and the conveying mechanism jointly clamp the packaging bag and drive the packaging bag to move forwards through the conveying mechanism, and meanwhile, the floating roller can generate continuous extrusion force on the packaging bag in a self-adaptive mode so that materials can be flatly laid in the packaging bag. The driving mechanism drives the conveying mechanism and the floating roller to operate at the same time, so that it is ensured that the conveying mechanism and the floating roller are the same in linear speed so as to stably clamp a packaging bag to advance, and the situation that the packaging bag is curled, dislocated, wrinkled and exploded due to the speed difference is avoided.

Description

Technical Field

[0001] This utility model relates to the field of packaging and conveying, specifically to a packaging bag conveying device. Background Technology

[0002] In the field of packaging technology, when bulk materials such as lumps, granules, and powders are packed into packaging bags, the material tends to concentrate in certain areas of the bag. For reasons such as efficient use of packing space or aesthetic appeal, the material needs to be distributed as evenly as possible within the packaging bag. Existing technologies typically use vibration or tamping to distribute the concentrated material evenly within the packaging bag. However, vibration or tamping devices are difficult to integrate with conveying mechanisms. They require separate power systems for the vibration or tamping devices and the conveying mechanism, resulting in complex structures, low costs, and reduced packaging efficiency. Utility Model Content

[0003] In view of this, the present invention provides a packaging bag conveying device, which aims to adaptively generate a certain squeezing force on the packaging bag through a floating roller so that the material is laid flat inside the packaging bag.

[0004] To solve the above technical problems, the technical solution adopted by this utility model is as follows:

[0005] A packaging bag conveying device includes a base and a drive mechanism, a transmission mechanism, a conveying mechanism, and a floating extrusion mechanism mounted on the base; the floating extrusion mechanism includes a floating roller mechanism, which includes a floating roller, and the floating roller conveys a packaging bag containing materials on the floating extrusion conveying mechanism; the drive mechanism drives the conveying mechanism and the floating roller simultaneously through the transmission mechanism, and the linear speed of the conveying mechanism and the floating roller is the same.

[0006] In some alternative embodiments, a throwing mechanism is also included, which is connected to the output end of the conveying mechanism; the throwing mechanism includes a first roller and a second roller clamped together; the packaging bag passes between the first roller and the second roller; the driving mechanism also drives the throwing mechanism to run through the transmission mechanism; the linear speed of the throwing mechanism is greater than the linear speed of the conveying mechanism.

[0007] In some alternative embodiments, at least one of the first roller and the second roller has a floating degree of freedom that moves closer to the other and away from the other, and has a tendency to move closer to the other under the action of gravity and / or elasticity.

[0008] In some alternative embodiments, the transmission mechanism includes a same-speed transmission component and a speed adjustment component; the conveying mechanism and the floating extrusion mechanism are driven to operate at the same speed through the same-speed transmission component; the speed adjustment component is driven between the driving mechanism and the conveying mechanism, or the speed adjustment component is driven between the driving mechanism and the same-speed transmission component, so that the linear speed of the throwing mechanism is greater than the linear speed of the conveying mechanism.

[0009] In some alternative embodiments, the floating roller is movably connected to the base to have a floating degree of freedom that moves closer to and away from the conveying mechanism; the floating roller has a tendency to move closer to the conveying mechanism due to gravity and / or elastic pressure.

[0010] In some alternative embodiments, the floating roller includes a floating shaft movably connected to the base and a pressing roller rotatably mounted on the floating shaft; when an elastic pressure member is present, the elastic pressure member acts on the floating shaft.

[0011] In some alternative embodiments, the floating roller mechanism further includes a first rolling element mounted on the floating shaft; the base is provided with a first groove that mates with the first rolling element.

[0012] In some alternative embodiments, when an elastic pressure member is included, the floating roller mechanism further includes a guide member whose guiding direction is along the floating direction of the floating roller; the elastic pressure member cooperates with the guide member to guide the deformation direction of the elastic pressure member.

[0013] In some alternative embodiments, the guide is connected to the floating shaft and slides with the base; or, the guide is connected to the base and slides with the floating shaft.

[0014] In some alternative embodiments, a plurality of floating roller mechanisms are provided along the conveying direction of the conveying mechanism; the floating extrusion mechanism further includes an extrusion flexible belt driven around the plurality of floating roller mechanisms; the extrusion flexible belt has an extrusion section parallel to the conveying direction of the conveying mechanism.

[0015] In summary, compared with the prior art, this utility model has the following advantages and beneficial effects:

[0016] When using the conveying packaging bag of this utility model, the floating roller and the conveying mechanism together clamp the packaging bag and drive the packaging bag forward through the conveying mechanism. At the same time, the floating roller can adaptively generate continuous squeezing force on the packaging bag to make the material spread flat inside the packaging bag.

[0017] This invention uses a single drive mechanism to simultaneously drive the conveying mechanism and the floating roller, reducing transmission malfunctions and ensuring that the linear speeds of the conveying mechanism and the floating roller are the same. This allows for smooth clamping of the packaging bag and prevents the bag from curling, misaligning, wrinkling, or bursting due to speed differences. Furthermore, using a single drive mechanism to simultaneously drive the conveying mechanism and the floating roller simplifies the overall structure of the device, saving power costs and space. Attached Figure Description

[0018] Figure 1 This is a frontal three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a rear-view three-dimensional structural diagram of the present invention.

[0020] Figure 3 In order to be in Figure 1 The structural diagram is based on the original design, with components such as the drive mechanism, transmission mechanism, and throwing mechanism omitted.

[0021] Figure 4 In order to be in Figure 3 The structural diagram after the base is omitted from the original text.

[0022] Figure 5 for Figure 4 A front view schematic diagram of the structure shown.

[0023] Figure 6 The main illustration shows the assembly structure between the floating roller mechanism and the base.

[0024] Figure 7 The main feature shown is the structure of the part on the base used for assembly with the floating roller mechanism.

[0025] Figure 8 This is a schematic diagram of the throwing mechanism.

[0026] Figure 9 The structure of the transmission mechanism is mainly shown.

[0027] The labels in the diagram are as follows: base 1, first chute 11, first step 12, protrusion 13, through hole 14, drive mechanism 2, transmission mechanism 3, speed adjustment component 31, same speed transmission component 32, transmission shaft 321, driving wheel 322, driven wheel 323, conveying mechanism 4, first driving roller mechanism 41, conveyor belt 42, driven roller mechanism 43, floating extrusion mechanism 5, second driving roller mechanism 51, extrusion flexible belt 52, floating roller mechanism 53, floating roller 531, floating shaft 5311, extrusion roller 5312, elastic pressure member 532, guide member 533, first rolling member 534, throwing mechanism 6, support 61, second chute 62, second step 63, second rolling member 64, first roller 65, second roller 66. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to specific embodiments.

[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. 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.

[0030] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number, while "above," "below," "within," etc. are understood to include the stated number. If terms such as "first," "second," etc., are used only to distinguish technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features, or implicitly specifying the order of the indicated technical features.

[0031] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0032] like Figure 1 and Figure 2 As shown in the figure, this application embodiment introduces a packaging bag conveying device, which mainly includes a base 1 and a drive mechanism 2, a transmission mechanism 3, a conveying mechanism 4 and a floating extrusion mechanism 5 installed on the base 1.

[0033] For ease of description, an appendix is ​​introduced. Figure 1The spatial rectangular coordinate system shown is used to illustrate the relevant structure of this utility model, wherein the positive direction of the X-axis is right, the positive direction of the Y-axis is forward, and the positive direction of the Z-axis is up.

[0034] Among them, such as Figure 5 As shown, the floating extrusion mechanism 5 includes a floating roller mechanism 53. (As indicated...) Figure 6 As shown, the floating roller mechanism 53 includes a floating roller 531.

[0035] like Figures 3-5 As shown, the floating roller 531 and the floating extrusion conveying mechanism 4 convey packaging bags containing materials.

[0036] like Figure 1 and Figure 2 As shown, the drive mechanism 2 drives the conveying mechanism 4 and the floating roller 531 to run simultaneously through the transmission mechanism 3, and the linear speeds of the conveying mechanism 4 and the floating roller 531 are the same.

[0037] When using the conveying packaging bag of this utility model, the floating roller 531 and the conveying mechanism 4 together clamp the packaging bag and drive the packaging bag forward through the conveying mechanism 4. At the same time, the floating roller 531 can adaptively generate continuous squeezing force on the packaging bag to make the material spread flat inside the packaging bag.

[0038] Furthermore, in this embodiment, a single drive mechanism 2 simultaneously drives the conveying mechanism 4 and the floating roller 531, reducing transmission malfunctions and ensuring that the linear speeds of the conveying mechanism 4 and the floating roller 531 are the same to smoothly clamp the packaging bag forward, preventing the packaging bag from curling, misaligning, wrinkling, or bursting due to speed differences. Moreover, using a single drive mechanism 2 to simultaneously drive the conveying mechanism 4 and the floating roller 531 simplifies the overall structure of the device, saving power costs and space.

[0039] As an optional implementation method, such as Figure 1 and Figure 2 As shown, the embodiments of this application may further include a throwing mechanism 6, which is connected to the output end of the conveying mechanism 4.

[0040] like Figure 8 As shown, the throwing mechanism 6 includes a first roller 65 and a second roller 66 clamped together. Optionally, the throwing mechanism 6 also includes a support 61 connected to the base 1. The first roller 65 and the second roller 66 are both rotatably mounted on the support 61, for example, the second roller 66 is located above the first roller 65. The packaging bag passes between the first roller 65 and the second roller 66.

[0041] like Figure 1 and Figure 2As shown, the driving mechanism 2 also drives the throwing mechanism 6 to operate through the transmission mechanism 3, and the linear speed of the throwing mechanism 6 is greater than the linear speed of the conveying mechanism 4.

[0042] In this embodiment, a single drive mechanism 2 simultaneously drives the conveying mechanism 4 and the throwing mechanism 6, reducing transmission malfunctions and ensuring an accurate difference in the linear speeds of the conveying mechanism 4 and the throwing mechanism 6. This design aims to: Firstly, the clamping force between the floating roller 531 and the conveying mechanism 4 allows the continuous packaging bags to be pulled from the storage box into the device for feeding; secondly, the floating roller 531 can adaptively compress the packaging bags containing materials conveyed on the conveying mechanism 4 to spread the material evenly within the packaging bags; and thirdly, the clamping force between the floating roller 531 and the conveying mechanism 4 can push the continuous packaging bags forward into the throwing mechanism 6 for feeding. Because the linear speed of the throwing mechanism 6 is greater than that of the conveying mechanism 4, the forward speed of the packaging bag in the throwing mechanism 6 is greater than that between the floating roller 531 and the conveying mechanism 4. This causes the packaging bag to be pulled and straightened by the throwing mechanism 6, preventing wrinkles, misalignment, and blockage, thus facilitating subsequent processes such as cutting. After the packaging bag is cut, it is thrown outward by the throwing mechanism 6 to achieve unloading.

[0043] like Figure 8 As shown, at least one of the first roller 65 and the second roller 66 has a floating degree of freedom that moves closer to or further away from the other, and tends to move closer to the other under the action of gravity and / or elastic elements. For example, the second roller 66, which is located above, has a floating degree of freedom that can move up and down, thereby adjusting the gap between the second roller 66 and the first roller 65 to clamp the packaging bag.

[0044] As an optional implementation, a second rolling element 64 is mounted on the shaft of the second roller 66. The support 61 is provided with a second sliding groove 62 that mates with the second rolling element 64, for example, the length direction of the second sliding groove 62 is arranged vertically.

[0045] The second rolling element 64 can reduce the frictional force when the second roller 66 floats up and down within the second slide groove 62. For example, the second rolling element 64 is a bearing. When the second roller 66 floats, one edge of the bearing contacts one edge of the second slide groove 62, while the other edge of the bearing does not contact the other edge of the second slide groove 62. This allows the bearing to rotate when the second roller 66 floats, thereby reducing the frictional force between the second roller 66 and the second slide groove 62 and making the floating of the second roller 66 smoother.

[0046] like Figure 8As shown, the second groove 62 may also be provided with a second step 63 to restrict the movement of the second roller 66 along its own axial direction. The inner side of the second rolling element 64 is blocked by the second step 63, thus preventing it from moving inward along the axial direction of the second roller 66, thereby ensuring the stability of the second roller 66's posture. Second rolling elements 64 are respectively installed at both ends of the second roller 66, and the two second rolling elements 64 are blocked by the second steps 63 on both sides, thereby ensuring that the second roller 66 does not axially shift when floating.

[0047] like Figure 9 As shown, the transmission mechanism 3 includes a same-speed transmission component 32 and a speed adjustment component 31.

[0048] The conveying mechanism 4 and the floating extrusion mechanism 5 are driven to run at the same speed by the same speed transmission assembly 32.

[0049] The speed adjustment component 31 is driven between the drive mechanism 2 and the conveying mechanism 4, or the speed adjustment component 31 is driven between the drive mechanism 2 and the same speed transmission component 32, so that the linear speed of the throwing mechanism 6 is greater than the linear speed of the conveying mechanism 4.

[0050] Optionally, the drive mechanism 2 can be a servo motor.

[0051] Optionally, the speed regulating component 31 can be a speed reducer, which includes an input shaft, an output shaft, and a gear set. Assume the gear set can adjust the transmission ratio between the input and output shafts to 1:5.

[0052] Optionally, the same-speed transmission assembly 32 may include a transmission shaft 321, a driving wheel 322, and a driven wheel 323.

[0053] Optionally, the conveying mechanism 4 may include multiple drive rollers. Alternatively, as... Figure 5 As shown, the conveying mechanism 4 includes a first active roller mechanism 41, a driven roller mechanism 43, and a conveyor belt 42 tensioned on the first active roller mechanism 41 and the driven roller mechanism 43.

[0054] The drive mechanism 2 and the input shaft of the speed adjustment component 31 can transmit power through belt drive, assuming that the transmission ratio between the two is 1:1.

[0055] The output shaft of the speed regulating component 31 and the transmission shaft 321 can also transmit power through belt drive, assuming that the transmission ratio between the two is 1:1.

[0056] The drive shaft 321 can be installed inside the conveying mechanism 4, for example, it can be located between the upper and lower conveyor belts 42, and there is no interference between the drive shaft 321 and the conveyor belt 42.

[0057] The driving wheel 322 is mounted on the transmission shaft 321, and the driven wheel 323 is mounted on the first driving roller mechanism 41. The driving wheel 322 and the driven wheel 323 mesh with each other to realize the power transmission between the transmission shaft 321 and the first driving roller mechanism 41. It is assumed that the transmission ratio between the two is 1:1.

[0058] Power can be transmitted between the drive shaft 321 and the floating roller 531 via belt drive, assuming a transmission ratio of 1:1.

[0059] The input shaft of the speed adjustment component 31 and the first roller 65 in the throwing mechanism 6 can transmit power through belt drive, assuming that the transmission ratio between the two is 1:1.

[0060] Therefore, the transmission ratio between the first active roller mechanism 41 and the floating roller 531 is 1:1 to achieve the same speed operation of the conveying mechanism 4 and the floating extrusion mechanism 5, and the transmission ratio between the first active roller mechanism 41 and the first drum 65 is 1:5 to achieve the linear speed of the throwing mechanism 6 being greater than the linear speed of the conveying mechanism 4.

[0061] Obviously, the output shaft of the speed adjustment component 31 can directly transmit power to the first active roller mechanism 41 via, for example, belt drive, while the floating roller 531 can passively follow the friction of the packaging bag, thus enabling the conveying mechanism 4 and the floating extrusion mechanism 5 to operate at the same speed.

[0062] As an optional implementation method, such as Figure 4 and Figure 5 As shown, the floating roller 531 is movably connected to the base 1 to have a floating degree of freedom that moves closer to or away from the conveying mechanism 4. For example, the floating roller 531 is located above the conveying mechanism 4 and can move up and down to move away from or closer to the conveying mechanism 4.

[0063] The floating roller 531 tends to move closer to the conveying mechanism 4 under the action of gravity and / or elastic pressure member 532.

[0064] When using the conveying packaging bag in the embodiment of this application, the floating roller 531 and the conveying mechanism 4 (the conveyor belt 42) together hold the packaging bag and drive the packaging bag forward through the conveying mechanism 4. At the same time, since the floating roller 531 has the potential energy to move closer to the conveying mechanism 4 due to the action of gravity and / or elastic pressure member 532, the floating roller 531 can adaptively generate continuous squeezing force on the packaging bag to make the material spread flat inside the packaging bag.

[0065] As an optional implementation method, such as Figure 6As shown, the floating roller 531 includes a floating shaft 5311 movably connected to the base 1 and an extrusion roller 5312 rotatably mounted on the floating shaft 5311. The floating shaft 5311 itself may not rotate, but may move up and down, for example, vertically.

[0066] When the elastic pressure member 532 is present, the elastic pressure member 532 acts on the floating shaft 5311 so that the floating shaft 5311 and the extrusion roller 5312 mounted on the floating shaft 5311 have the potential energy to move toward the conveying mechanism 4.

[0067] The elastic pressure member 532 can be positioned above the floating shaft 5311 to apply a downward thrust to the floating shaft 5311. Here, the elastic pressure member 532 can be a spring or an elastic rubber column / cylinder in a compressed state.

[0068] The elastic pressure member 532 can also be located below the floating shaft 5311 to apply a downward pulling force to the floating shaft 5311. Here, the elastic pressure member 532 can be a spring or an elastic rubber rope and is in a stretched state.

[0069] like Figure 6 As shown, the floating roller mechanism 53 may further include a first rolling element 534 mounted on the floating shaft 5311, and the base 1 is provided with a first sliding groove 11 that cooperates with the first rolling element 534. For example, the length direction of the first sliding groove 11 is arranged vertically.

[0070] The first rolling element 534 can reduce the friction between the floating shaft 5311 and the first sliding groove 11 when the floating shaft 5311 floats up and down. For example, the first rolling element 534 is a bearing. When the floating shaft 5311 floats, one edge of the bearing contacts one edge of the first sliding groove 11, while the other edge of the bearing does not contact the other edge of the first sliding groove 11. This allows the bearing to rotate when the floating shaft 5311 floats, thereby reducing the friction between the floating shaft 5311 and the first sliding groove 11 and making the floating shaft 5311 float more smoothly.

[0071] like Figure 7 As shown, the first groove 11 is provided with a first step 12 that restricts the first rolling element 534 from moving axially along the floating shaft 5311. The inner side of the first rolling element 534 is blocked by the first step 12, thus preventing it from moving inward along the axial direction of the floating shaft 5311, thereby ensuring the stability of the floating shaft 5311's posture. First rolling elements 534 are respectively installed at both ends of the floating shaft 5311, and the two first rolling elements 534 are blocked by the first steps 12 on both sides, thereby ensuring that the floating shaft 5311 does not axially shift when floating.

[0072] like Figure 6As shown, the floating roller mechanism 53 further includes a guide member 533 whose guiding direction is along the floating direction of the floating roller 531. The elastic pressing member 532 cooperates with the guide member 533 to guide the deformation direction of the elastic pressing member 532.

[0073] Optionally, the elastic pressure member 532 is a spring or an elastic rubber cylinder, and the guide member 533 is a rod-like part. The guide member 533 is arranged vertically, and the elastic pressure member 532 is sleeved on the guide member 533 to guide the elastic pressure member 532 to extend and retract vertically.

[0074] As an optional implementation method, such as Figure 6 As shown, the guide member 533 is connected to the floating shaft 5311 and slides in cooperation with the base 1. The elastic pressure member 532 is sleeved on the guide member 533, and its two ends are connected / abut against the floating shaft 5311 and the base 1, respectively. For example, the lower end of the guide member 533 is connected to the floating shaft 5311. The base 1 may have a protrusion 13 with a through hole 14. The upper end of the guide member 533 passes through the through hole 14, and the size of the upper end of the guide member 533 is larger than the size of the through hole 14 to ensure that the upper end of the guide member 533 will not come out of the through hole 14.

[0075] In this way, when the floating shaft 5311 floats up and down, the upper end of the guide 533 can pass through the protrusion 13 to float up and down synchronously, thereby changing the deformation of the elastic pressure member 532 and adaptively adjusting the squeezing force of the floating roller 531 on the packaging bag.

[0076] Alternatively, the guide member 533 is connected to the base 1 and slides in engagement with the floating shaft 5311. The elastic pressure member 532 is still sleeved on the guide member 533, with its two ends connected to / abutting against the base 1 and the floating shaft 5311, respectively. For example, the upper end of the guide member 533 is connected to the base 1. The floating shaft 5311 may have an opening through which the lower end of the guide member 533 passes, and the size of the lower end of the guide member 533 is larger than the size of the opening, thereby ensuring that the lower end of the guide member 533 will not come out of the opening.

[0077] In this way, when the floating shaft 5311 floats up and down, the lower end of the guide 533 will pass through the opening on the floating shaft 5311 to change the deformation of the elastic pressure member 532, and adaptively adjust the squeezing force of the floating roller 531 on the packaging bag.

[0078] Alternatively, if the guide member 533 is connected to the floating shaft 5311, it is possible to adjust the connection between the guide member 533 and the floating shaft 5311 to regulate the deformation of the elastic pressure member 532. For example, the lower end of the guide member 533 has an external thread and is screwed into a threaded hole machined on the floating shaft 5311. If the guide member 533 is connected to the base 1, it is possible to adjust the connection between the guide member 533 and the base 1 to regulate the deformation of the elastic pressure member 532. For example, the upper end of the guide member 533 has an external thread and is screwed into a threaded hole machined on the protrusion 13.

[0079] like Figure 4 and Figure 5 As shown, in this embodiment of the application, multiple floating roller mechanisms 53 may also be provided along the conveying direction of the conveying mechanism 4 to enhance the clamping effect on the packaging bag and to ensure that the material is laid flat inside the packaging bag as much as possible through multiple compressions.

[0080] Based on this, the floating extrusion mechanism 5 may further include an extrusion flexible belt 52 driven and wound on a plurality of floating roller mechanisms 53, the extrusion flexible belt 52 having an extrusion section parallel to the conveying direction of the conveying mechanism 4.

[0081] For example, there are two floating roller mechanisms 53, and the lower extrusion flexible belt 52 located between the two floating roller mechanisms 53 is an extrusion section. This extrusion section is adjacent to and parallel to the upper conveyor belt 42 to clamp and transport the packaging bag. The extrusion section of the extrusion flexible belt 52 extrudes the packaging bag to make the material spread flat inside the packaging bag. Compared with using the floating roller mechanism 53 to clamp and extrude the packaging bag, using the extrusion flexible belt 52 has a longer clamping and extrusion section, resulting in better clamping and extrusion effects.

[0082] When the floating extrusion mechanism 5 does not include the extrusion flexible belt 52, as mentioned above, the power transmission between the drive shaft 321 and the extrusion roller 5312 can be achieved through belt drive, and the transmission ratio between the two is 1:1.

[0083] When the floating extrusion mechanism 5 includes an extrusion flexible belt 52, such as Figure 5 As shown, the floating extrusion mechanism 5 may further include a second active roller mechanism 51, with the extrusion flexible belt 52 tensioned on the second active roller mechanism 51 and the extrusion roller 5312. In this case, the drive shaft 321 no longer transmits power to the extrusion roller 5312 via belt drive, but instead, the drive shaft 321 and the second active roller mechanism 51 can transmit power via belt drive, with a transmission ratio of 1:1.

[0084] Additionally, it should be noted that the belt drive mentioned above refers to a transmission element with pulleys mounted on two transmission components, with a flexible belt tensioned between the two pulleys to achieve power transmission, or a roller replacing the pulleys in the transmission. To ensure a strict transmission ratio, the belt drive is preferably a synchronous belt drive, the pulleys are preferably synchronous pulleys, and the flexible belt is preferably a synchronous toothed belt. If a roller replaces the pulleys in the transmission, then the roller is preferably a synchronous toothed roller.

[0085] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0086] The above preferred embodiments should not be considered as limitations on this utility model, and the scope of protection of this utility model should be determined by the scope defined in the claims. For those skilled in the art, several improvements and modifications can be made without departing from the spirit and scope of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A packaging bag conveying device, characterized in that: It includes a base (1) and a drive mechanism (2), a transmission mechanism (3), a conveying mechanism (4) and a floating extrusion mechanism (5) mounted on the base (1); The floating extrusion mechanism (5) includes a floating roller mechanism (53), which includes a floating roller (531), and the floating roller (531) conveys the packaging bag containing the material on the floating extrusion conveying mechanism (4). The drive mechanism (2) drives the conveying mechanism (4) and the floating roller (531) to run simultaneously through the transmission mechanism (3), and the linear speeds of the conveying mechanism (4) and the floating roller (531) are the same.

2. The packaging bag conveying device as described in claim 1, characterized in that: It also includes a throwing mechanism (6), which is connected to the output end of the conveying mechanism (4); The throwing mechanism (6) includes a first roller (65) and a second roller (66) clamped together; the packaging bag passes between the first roller (65) and the second roller (66); The drive mechanism (2) also drives the throwing mechanism (6) to operate through the transmission mechanism (3); The linear velocity of the throwing mechanism (6) is greater than that of the conveying mechanism (4).

3. The packaging bag conveying device as described in claim 2, characterized in that: At least one of the first roller (65) and the second roller (66) has a floating degree of freedom that moves closer to the other and away from the other, and has a tendency to move closer to the other under the action of gravity and / or elastic elements.

4. The packaging bag conveying device as described in claim 2, characterized in that: The transmission mechanism (3) includes a same-speed transmission component (32) and a speed adjustment component (31); The conveying mechanism (4) and the floating extrusion mechanism (5) are driven to run at the same speed by the same speed transmission assembly (32); The speed adjustment component (31) is connected between the drive mechanism (2) and the conveying mechanism (4), or the speed adjustment component (31) is connected between the drive mechanism (2) and the same speed transmission component (32), so that the linear speed of the throwing mechanism (6) is greater than the linear speed of the conveying mechanism (4).

5. The packaging bag conveying device as described in claim 1, characterized in that: The floating roller (531) is movably connected to the base (1) to have a floating degree of freedom that moves closer to and further away from the conveying mechanism (4); the floating roller (531) has a tendency to move closer to the conveying mechanism (4) by gravity and / or elastic pressure (532).

6. The packaging bag conveying device as described in claim 5, characterized in that: The floating roller (531) includes a floating shaft (5311) movably connected to the base (1) and an extrusion roller (5312) rotatably mounted on the floating shaft (5311). When an elastic pressure member (532) is present, the elastic pressure member (532) acts on the floating shaft (5311).

7. The packaging bag conveying device as described in claim 6, characterized in that: The floating roller mechanism (53) also includes a first rolling element (534) mounted on the floating shaft (5311). The base (1) is provided with a first groove (11) that cooperates with the first rolling element (534).

8. A packaging bag conveying device as described in claim 6, characterized in that: When the elastic pressure member (532) is included, the floating roller mechanism (53) further includes a guide member (533) whose guiding direction is along the floating direction of the floating roller (531). The elastic pressure member (532) cooperates with the guide member (533) to guide the deformation direction of the elastic pressure member (532).

9. A packaging bag conveying device as described in claim 8, characterized in that: The guide member (533) is connected to the floating shaft (5311) and slides in cooperation with the base (1); or, The guide (533) is connected to the base (1) and slides in cooperation with the floating shaft (5311).

10. A packaging bag conveying device according to any one of claims 1-9, characterized in that: A plurality of floating roller mechanisms (53) are provided along the conveying direction of the conveying mechanism (4). The floating extrusion mechanism (5) further includes an extrusion flexible belt (52) driven around a plurality of the floating roller mechanisms (53); the extrusion flexible belt (52) has an extrusion section parallel to the conveying direction of the conveying mechanism (4).

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