Simple active bag conveying device capable of preventing material bags from being crushed

Abstract

The utility model discloses a simple active bag conveying device capable of preventing material bags from being crushed. The simple active bag conveying device comprises a conveying mechanism, a pressing wheel mechanism and a guide mechanism. The conveying mechanism comprises a supporting frame, a driving assembly, a driving roller, a driven roller and a conveying belt. The driving roller and the driven roller are pivoted to the supporting frame, the conveying belt is arranged on the peripheries of the driving roller and the driven roller in a sleeving mode, a feeding end and a discharging end are formed at the two ends of the conveying belt respectively, and a bag conveying station is formed in the middle; the output end of the driving assembly is linked with the driving roller; the pressing wheel mechanism comprises a pressing wheel, the pressing wheel is rotationally connected to the upper portion of the conveying belt, and a pressure applying face is formed in the circumferential direction of the pressing wheel and is close to the surface of the conveying belt of the package conveying station. The guiding mechanism is arranged close to the feeding end and used for guiding the edge of the material bag into the position between the pressure applying face and the conveying belt. The utility model has the advantages of good conveying effect, no damage to the content of the material bag, simple structure and high power conversion rate.

Description

Technical Field

[0001] The utility model relates to the technical field of food packaging equipment, and particularly relates to a simple active type bag conveying device for preventing material bags from being crushed. Background Art

[0002] At present, during the packaging process of foods such as instant noodles, it is generally necessary to sequentially put ingredient bags and the like into packaging bags or boxes. Before the ingredient bags are put in, they are in a connected state and need to be conveyed by a bag conveyor. Since the ingredient bags are relatively light in weight, gaps will be generated between them and the conveyor belt during transportation, and it is difficult to provide sufficient friction to support the transportation of the ingredient bags, resulting in the idling of the bag conveyor or waste of power, and poor transportation effect. For the existing bag conveying devices for conveying ingredient bags, by arranging rollers on the conveyor belt and providing pressure through the rollers to make the ingredient bags closely adhere to the surface of the conveyor belt, the contact area between the two is increased, thereby improving the transportation efficiency. However, another problem arises. The pressure of the rollers will also crush the contents of the ingredient bags. Especially when transporting dry vegetable ingredient bags, the dehydrated vegetables inside are easily crushed under the extrusion of the rollers, affecting the edible taste. Therefore, there is an urgent need for a bag conveying device with good conveying effect and not damaging the contents of the material bags. Summary of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a simple active type bag conveying device for preventing material bags from being crushed, which has good conveying effect, does not damage the contents of the material bags, has a simple structure, and high power conversion rate.

[0004] The purpose of the utility model is realized by adopting the following technical solutions:

[0005] A simple active type bag conveying device for preventing material bags from being crushed includes a transportation mechanism, a pressing wheel mechanism and a guiding mechanism;

[0006] The transportation mechanism includes a support frame, a driving component, a driving roller, a driven roller and a conveyor belt; the driving roller and the driven roller are respectively pivotally connected to opposite ends of the support frame, the conveyor belt is sleeved on the circumferences of the driving roller and the driven roller, and two ends of the conveyor belt respectively form a feeding end and a discharging end, and a bag conveying station is formed between the feeding end and the discharging end; the driving component has an output end, and the output end of the driving component is linked with the driving roller; the conveyor belt is driven to roll by the driving component to drive the material bag to pass through the bag conveying station;

[0007] The pressing wheel mechanism includes a pressing wheel, the pressing wheel is rotatably connected above the conveyor belt, a pressing surface is formed on the circumference of the pressing wheel, and the pressing surface is arranged close to the surface of the conveyor belt at the bag conveying station; the edge of the material bag is closely adhered to the surface of the conveyor belt by the pressing wheel;

[0008] The guiding mechanism is arranged near the feeding end and is used to guide the edge of the material package into the space between the pressing surface and the conveyor belt.

[0009] In an alternative embodiment, the pressing wheel mechanism includes a support base and a swing arm. The support base is fixed to the support frame. A support shaft is provided in the middle of the swing arm, and the swing arm is rotatably connected to the support base through the support shaft. The pressing wheel is rotatably connected to the end of the swing arm, and the swing arm drives the pressing wheel to rotate around the support shaft, so that the pressing wheel approaches or moves away from the conveyor belt.

[0010] In an alternative embodiment, the pressing wheel mechanism further includes a support rod and an elastic element. The support rod is fixed to the support base. One end of the elastic element is connected to the support rod, and the other end is connected to the end of the swing arm away from the pressing wheel. The elastic element provides an elastic force to make the pressing wheel approach the conveyor belt.

[0011] In an alternative embodiment, the pressing wheel mechanism further includes a handle. The two ends of the handle respectively form a hand-held part and a connecting part. The handle is connected to the end of the swing arm close to the pressing wheel through the connecting part. By rotating the handle, the swing arm is driven to rotate around the support shaft, so that the pressing wheel approaches or moves away from the conveyor belt.

[0012] In an alternative embodiment, the axis of the pressing wheel is parallel to the axis of the driven roller, and the axis of the pressing wheel is arranged above the axis of the driven roller in the direction of gravity.

[0013] In an alternative embodiment, a limiting mechanism is further included. The limiting mechanism and the pressing wheel are arranged on opposite sides of the conveyor belt. The limiting mechanism includes an adjusting seat and a baffle. The baffle is used to limit the edge of the other side of the material package. A conveying package width spacing is formed between the baffle and the pressing wheel. One end of the adjusting seat is connected to the support frame, and the other end is slidably connected to the baffle. The sliding direction of the baffle is parallel to the axis of the driven roller. Thus, the baffle can translate relative to the adjusting seat to adjust the size of the conveying package width spacing.

[0014] In an alternative embodiment, the limiting mechanism further includes a pressing plate. The pressing plate is arranged on the side of the baffle close to the pressing wheel. A conveying package height gap for the material package to pass through is formed between the pressing plate and the conveyor belt. The pressing plate is slidably connected to the baffle, and the sliding direction is perpendicular to the axis of the driven roller. Thus, the pressing plate can translate relative to the baffle to adjust the size of the conveying package height gap.

[0015] In an alternative embodiment, a first guiding portion is formed on one side of the baffle plate close to the feeding end, and the first guiding portion extends in a direction away from the pressing wheel; thereby gradually expanding the conveying width spacing in the direction of the feeding end;

[0016] A second guiding portion is formed on one side of the pressing plate close to the feeding end, and the second guiding portion extends in a direction away from the conveyor belt, thereby gradually expanding the conveying height gap in the direction of the feeding end.

[0017] In an alternative embodiment, the guiding mechanism includes a first support, a first guide wheel shaft is arranged on the first support, the first guide wheel shaft is parallel to the driven roller, and the first guide wheel shaft is arranged close to the feeding end of the conveyor belt;

[0018] The guiding mechanism includes a first guide wheel assembly, and the first guide wheel assembly includes a first guiding roller, and the first guiding roller is sleeved on the circumferential direction of the first guide wheel shaft through a bearing; retaining rings are arranged at both ends of the first guiding roller.

[0019] In an alternative embodiment, a second guide wheel shaft is arranged on the first support, the second guide wheel shaft is parallel to the first guide wheel shaft, and the second guide wheel shaft is arranged on one side in the transverse direction of the first guide wheel shaft;

[0020] The guiding mechanism includes a second guide wheel assembly, and the second guide wheel assembly includes a second guiding roller, and the second guiding roller is sleeved on the circumferential direction of the second guide wheel shaft through a bearing; retaining rings are arranged at both ends of the second guiding roller;

[0021] The guiding mechanism further includes a second support, one end of the second support is rotatably connected to the first support, and the other end is provided with a third guide wheel shaft; a locking member is further arranged on the second support, and the locking member can lock the included angle between the second support and the first support between 90° and 110°; the third guide wheel shaft is parallel to the second guide wheel shaft, and the third guide wheel shaft is arranged above the second guide wheel shaft in the vertical direction;

[0022] The guiding mechanism includes a third guide wheel assembly, and the third guide wheel assembly includes a third guiding roller, and the third guiding roller is sleeved on the circumferential direction of the third guide wheel shaft through a bearing; retaining rings are arranged at both ends of the third guiding roller.

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0024] The simple active type material bag conveying device for preventing material bags from being crushed provides the main supporting function through the support frame and provides an installation basis for other components. The belt material bag conveyor is installed on the support frame to actively convey the material bags. The driving assembly provides power to drive the driving roller to rotate, driving the driven roller and the conveyor belt to roll, so as to drive the material bags on the conveyor belt to pass through the material bag conveying station. By setting the pressing wheel mechanism to press the edge of the material bag to make it fit the upper surface of the conveyor belt, that is, the edge of the material bag is clamped between the pressing surface of the pressing wheel and the upper surface of the conveyor belt for conveying, effectively increasing the friction between the two, effectively avoiding the situation that the material bag detaches from the contact with the conveyor belt due to too light weight in the traditional material bag conveying device, improving the conveying effect of the material bag conveying device and having a high power conversion rate; the pressing wheel rotates passively under the drive of the material bag or the conveyor belt, avoiding relative movement with the material bag or the conveyor belt to cause power loss or damage to the material bag. The pressing surface of the pressing wheel only acts on the edge of the material bag. By pressing the edge of the material bag to make it fit the conveyor belt, it will not damage the content of the material bag. And most of the material bags on the market currently have a pressed edge, which not only helps to improve the stability of material bag conveying, but also can prevent the content of the material bag from running between the pressing surface of the pressing wheel and the conveyor belt and being damaged, and the conveying effect is better. The guiding mechanism can better guide the edge of the material bag into the space between the pressing surface and the conveyor belt, avoiding the material bag from deviating and detaching from the pressing surface of the pressing wheel, and further ensuring the reliability of material bag conveying. Brief Description of the Drawings

[0025] Figure 1 is a perspective view of the simple active type material bag conveying device for preventing material bags from being crushed in Embodiment 1;

[0026] Figure 2 is a front view of the simple active type material bag conveying device for preventing material bags from being crushed in Embodiment 1;

[0027] Figure 3 is a top view of the simple active type material bag conveying device for preventing material bags from being crushed in Embodiment 1;

[0028] Figure 4 is a side view of the simple active type material bag conveying device for preventing material bags from being crushed in Embodiment 1;

[0029] Figure 5 for Embodiment 1 Figure 4 partial view of the A-A cross section of the simple active type material bag conveying device for preventing material bags from being crushed.

[0030] In the figure: 10, a transportation mechanism; 11, a support frame; 12, a driving assembly; 13, a driving roller; 14, a driven roller; 15, a conveyor belt; 20, a pressing wheel mechanism; 21, a pressing wheel; 22, a support base; 23, a swing arm; 231, a support shaft; 24, a support rod; 25, an elastic element; 26, a handle; 30, a guiding mechanism; 31, a first support; 32, a first guide wheel assembly; 33, a second guide wheel assembly; 34, a second support; 35, a third guide wheel assembly; 40, a limiting mechanism; 41, an adjusting base; 42, a baffle; 421, a first guiding portion; 43, a pressing plate; 431, a second guiding portion. Detailed implementation manners

[0031] Next, in combination with the accompanying drawings and the detailed implementation manners, the present utility model will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments. Except as otherwise specifically stated, the materials and equipment used in this embodiment can be purchased from the market. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as a limitation to the present application.

[0032] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In the description of the present application, "a plurality of" means two or more unless otherwise specifically and precisely defined.

[0033] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "connected", "communicated", "connected" should be understood in a broad sense. For example, it can be a fixed connection, or can be connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0034] In the description, claims, and the above-mentioned drawings of this application, terms such as "first" and "second" are used to distinguish similar objects and do not necessarily describe a specific order or sequence. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0035] Embodiment 1:

[0036] Please refer to Figures 1-5 , this embodiment provides a simple active type bag conveying device for preventing bag crushing, which is characterized by including a conveying mechanism 10, a pressing wheel mechanism 20, and a guiding mechanism 30;

[0037] The conveying mechanism 10 includes a support frame 11 and a belt bag conveyor installed on the support frame 11. The support frame 11 is a sheet metal frame welded by several metal profiles and sheet metals, which plays a main supporting role and provides an installation basis for other components; the belt bag conveyor includes a driving assembly 12, a driving roller 13, a driven roller 14, and a conveyor belt 15; the driving roller 13 and the driven roller 14 are respectively pivotally connected to opposite ends of the support frame 11, the conveyor belt 15 is sleeved around the driving roller 13 and the driven roller 14 in the circumferential direction, both ends of the conveyor belt 15 respectively form a feeding end and a discharging end, and a bag conveying station for conveying bags is formed between the feeding end and the discharging end; the driving assembly 12 has an output end, and the output end of the driving assembly 12 is linked with the driving roller 13 through a transmission mechanism to transmit torque to the driving roller 13.

[0038] The pressing wheel mechanism 20 includes a pressing wheel 21, and the pressing wheel 21 is rotatably connected above the conveyor belt 15 through a support seat 22. A pressing surface is formed on the circumference of the pressing wheel 21, and the pressing surface is arranged close to the surface of the conveyor belt 15 at the bag conveying station; the edge of the bag is made to closely adhere to the surface of the conveyor belt 15 through the pressing wheel 21. The width of the pressing surface of the pressing wheel 21 can be adapted to the edge pressing of the bag.

[0039] The guiding mechanism 30 is arranged close to the feeding end, and the guiding mechanism 30 is used to guide the edge of the bag into the space between the pressing surface and the conveyor belt 15.

[0040] The simple active bag conveying device for preventing material bags from being crushed in this embodiment provides main support through the support frame 11 and provides an installation basis for other components. The belt bag conveyor is installed on the support frame 11 to actively transport the material bags. The driving component 12 provides power to drive the active roller 13 to rotate, drive the driven roller 14 and the conveyor belt 15 to roll, and drive the material bags on the conveyor belt 15 to pass through the bag conveying station. The edge of the material bag is pressed by setting a pressure wheel mechanism 20 to make it fit the upper surface of the conveyor belt 15, that is, the edge of the material bag is clamped between the pressure surface of the pressure wheel 21 and the upper surface of the conveyor belt 15 for conveying, which effectively increases the friction between the two, effectively avoids the situation in which the material bag in the traditional bag conveying device is out of contact with the conveyor belt 15 due to its light weight, improves the conveying effect of the bag conveying device, and has a high power conversion rate; the pressure wheel 21 is passively rotated under the drive of the material bag or the conveyor belt 15, avoiding relative movement between the material bag or the conveyor belt 15 to cause power loss or damage to the material bag, and the pressure surface of the pressure wheel 21 only acts on the edge of the material bag, and by pressing the edge of the material bag to fit the conveyor belt 15, it will not cause damage to the content of the material bag, and most of the edges of the material bags on the market currently have a pressed edge, which is not only conducive to improving the stability of bag conveying, but also can prevent the content of the material bag from running between the pressure surface of the pressure wheel 21 and the conveyor belt 15 and being damaged, and the conveying effect is better. The guide mechanism 30 can better guide the edge of the material bag into between the pressure surface and the conveyor belt 15, so as to prevent the material bag from running away from the pressure surface of the pressing wheel 21, and further ensure the reliability of bag conveying.

[0041] Specifically, the pressing wheel mechanism 20 includes a support seat 22 and a swing arm 23, the support seat 22 is fixed to the support frame 11; a support shaft 231 is provided in the middle of the swing arm 23, and the swing arm 23 is rotatably connected to the support seat 22 through the support shaft 231; the pressing wheel 21 is rotatably connected to the end of the swing arm 23, and the pressing wheel 21 is driven by the swing arm 23 to rotate around the support shaft 231, so that the pressing wheel 21 is close to or away from the conveyor belt 15, and the size of the gap and the pressure between the pressure surface of the pressing wheel 21 and the surface of the conveyor belt 15 for the edge of the material bag to pass through are adjusted.

[0042] In some embodiments, the pressure wheel 21 can rely on its own weight to apply pressure so that the edge of the material bag is close to the conveyor belt 15. However, its pressure is uncontrollable, and it is easy to be bounced up under the action of inertia when the belt conveyor is running at high speed, resulting in temporary failure. In order to avoid the above situation, the pressure wheel mechanism 20 of this embodiment also includes a support rod 24 and an elastic element 25; the support rod 24 is fixed to the support seat 22; the elastic element 25 is arranged between the support rod 24 and the swing arm 23; one end of the elastic element 25 is connected to the support rod 24, and the other end is connected to the end of the swing arm 23 away from the pressure wheel 21. The elastic element 25 of the present embodiment is realized by a tension spring. The tension spring at one end of the swing arm 23 provides elastic force to drive the end of the swing arm 23 upward. By utilizing the principle of lever, the swing arm 23 swings around the support shaft 231 at a certain angle, providing a downward elastic force for the pressure wheel 21 rotatably connected to the other end of the swing arm 23. The pressure wheel 21 is normally pressed tightly against the conveyor belt 15 under the action of the elastic force. Even if the conveyor belt 15 is in a high-speed transportation state, the pressure wheel 21 can be quickly reset under the action of the elastic force to hold the edge of the material bag against the surface of the conveyor belt 15.

[0043] Furthermore, the pressing wheel mechanism 20 also includes a handle 26, and the two ends of the handle 26 respectively form a hand-holding part and a connecting part, and the handle 26 is connected to the end of the swing arm 23 close to the pressing wheel 21 through the connecting part; by rotating the handle 26, the swing arm 23 is driven to rotate around the support shaft 231, so that the pressing wheel 21 is moved closer to or away from the conveyor belt 15, which is convenient for manually sending or taking out the edge of the material bag between the pressing wheel 21 and the conveyor belt 15.

[0044] In this embodiment, the axis of the pressing wheel 21 is parallel to the axis of the driven roller 14, and the axis of the pressing wheel 21 is arranged above the axis of the driven roller 14 in the direction of gravity. Thus, the surfaces of the pressing wheels 21 on both sides of the conveyor belt abut against the driven roller 14, clamping the conveyor belt and the edge of the material bag therein, and the driven roller 14 provides a certain support effect to improve the transportation stability.

[0045] The simple active bag conveying device for preventing material bags from being crushed also includes a limiting mechanism 40; the limiting mechanism 40 and the pressure wheel 21 are arranged on opposite sides of the conveyor belt 15; the limiting mechanism 40 prevents the material bags from being excessively displaced during transportation and detaching from the pressure surface of the pressure wheel 21.

[0046] Specifically, the limiting mechanism 40 includes an adjusting seat 41 and a baffle 42; the baffle 42 is used to limit the edge of the other side of the material package, and a conveying width spacing is formed between the baffle 42 and the pressing wheel 21; the size of the conveying width spacing is adapted to the width of the material package. The adjusting seat 41 is L-shaped, one end of which is used to connect with the support frame 11, and the other end is provided with a threaded hole for connecting with the baffle 42; the baffle 42 is also L-shaped, having a horizontal plate and a vertical plate, with a reinforcing rib arranged between the horizontal plate and the vertical plate, and a pulling groove is formed on the horizontal plate, and the direction of the pulling groove is arranged in the same direction as the axis of the driven roller 14. By passing a threaded fastener through the pulling groove and the threaded hole, the baffle 42 can be slidably connected to the adjusting seat 41; thus, the baffle 42 can be translated relative to the adjusting seat 41 to adjust the size of the conveying width spacing to adapt to the width of the material package, which has strong practicability.

[0047] The limiting mechanism 40 further includes a pressing plate 43, the pressing plate 43 is arranged on the side of the baffle 42 close to the pressing wheel 21, and a conveying height gap for the material package to pass through is formed between the pressing plate 43 and the conveyor belt 15; the pressing plate 43 is slidably connected to the baffle 42, and the sliding direction is perpendicular to the axis of the driven roller 14, so that the pressing plate 43 can be translated relative to the baffle 42 to adjust the size of the conveying height gap. By setting the pressing plate 43 to limit the height, it can be avoided that the material package warps or deviates from the conveying station during passing.

[0048] A first guiding portion 421 is formed on the side of the baffle 42 close to the feeding end, and the first guiding portion 421 extends in a direction away from the pressing wheel 21; thus, the conveying width spacing gradually expands in the direction of the feeding end. A second guiding portion 431 is formed on the side of the pressing plate 43 close to the feeding end, and the second guiding portion 431 extends in a direction away from the conveyor belt 15, so that the conveying height gap gradually expands in the direction of the feeding end. The first guiding portion 421 can be arranged on both opposite sides of the baffle 42, and the second guiding portion 431 can be arranged on both opposite sides of the pressing plate 43. Through the transition of the first guiding portion 421 and the second guiding portion 431, the material package is guided to avoid the material package being stuck by the plate end and enabling the material package to smoothly enter the control range of the limiting mechanism 40.

[0049] The guiding mechanism 30 of this embodiment includes a first bracket 31, a first guide wheel shaft is arranged on the first bracket 31, the first guide wheel shaft is parallel to the driven roller 14, and the first guide wheel shaft is arranged close to the feeding end of the conveyor belt 15;

[0050] The guiding mechanism 30 includes a first guide wheel assembly 32. The first guide wheel assembly 32 includes a first guiding roller which is circumferentially sleeved on the first guide wheel shaft through a bearing. Retaining rings are arranged at both ends of the first guiding roller, and the retaining rings are slidably arranged on the circumferences of the ends of the first guiding roller. During use, the material package is passed through the circumference of the first guiding roller. Driven by the material package, the first guiding roller rotates around the first guide wheel shaft, reducing the friction between the material package and the surface of the first guiding roller. The retaining rings at both circumferential ends of the first guiding roller limit the edges on both sides of the material package and guide it under the pressing surface of the pressing wheel 21.

[0051] A second guide wheel shaft is arranged on the first bracket 31. The second guide wheel shaft is parallel to the first guide wheel shaft and is arranged on one side of the first guide wheel shaft in the transverse direction. The guiding mechanism 30 includes a second guide wheel assembly 33. The second guide wheel assembly 33 includes a second guiding roller which is circumferentially sleeved on the second guide wheel shaft through a bearing. Retaining rings are arranged at both ends of the second guiding roller.

[0052] The guiding mechanism 30 further includes a second bracket 34. One end of the second bracket 34 is rotatably connected to the first bracket 31, and the other end is provided with a third guide wheel shaft. A locking member is also arranged on the second bracket 34. The locking member can lock the included angle between the second bracket 34 and the first bracket 31 between 90° and 110°. An appropriate included angle can prevent the contents of the material package from being damaged. The third guide wheel shaft is parallel to the second guide wheel shaft and is arranged above the second guide wheel shaft in the vertical direction.

[0053] The guiding mechanism 30 includes a third guide wheel assembly 35. The third guide wheel assembly 35 includes a third guiding roller which is circumferentially sleeved on the third guide wheel shaft through a bearing. Retaining rings are arranged at both ends of the third guiding roller.

[0054] The specific structures and functions of the second guiding roller, the third guiding roller and the first guiding roller are the same. During use, the connected bag material package is sequentially wound around the circumferences of the guiding rollers for guiding. By arranging multiple guiding rollers to conduct multi-stage guiding on the material package and changing the material conveying direction, while preventing the contents of the material package from being broken, the material conveying device can meet the requirements of different production lines, making it more practical.

[0055] Although certain components and embodiments of the present application have been illustrated and described, many modifications and changes (e.g., changes in the size, dimensions, structure, shape and proportion of each element, installation arrangement, material use, color, orientation, etc.) can be conceived by those skilled in the art without actually departing from the scope and spirit in the claims. Finally, it should be noted that the above embodiments are only the preferred embodiments of the present utility model, and the scope of protection of the present utility model cannot be limited thereby. Any non-substantial changes and substitutions made by those skilled in the art based on the present utility model fall within the scope of protection required by the present utility model.

Claims

1. A simple active bag conveying device for preventing crushing of bag, characterized in that: It includes a transport mechanism, a pressure wheel mechanism and a guide mechanism; The transport mechanism comprises a support frame, a driving assembly, a driving roller, a driven roller and a conveyor belt; the driving roller and the driven roller are respectively pivotally connected to opposite ends of the support frame, the conveyor belt is sleeved around the driving roller and the driven roller, the two ends of the conveyor belt respectively form a feed end and a discharge end, and a bag conveying station is formed between the feed end and the discharge end; the driving assembly has an output end, and the output end of the driving assembly is linked with the driving roller; the driving assembly provides power to drive the conveyor belt to roll, and drive the bag to pass through the bag conveying station; The pressing wheel mechanism comprises a pressing wheel, which is rotatably connected to the top of the conveyor belt, and a pressure surface is formed on the circumference of the pressing wheel, and the pressure surface is arranged close to the conveyor belt surface of the bag conveying station; the edge of the bag is closely attached to the conveyor belt surface by the pressing wheel; The guide mechanism is arranged close to the feed end, and is used for guiding the edge of the material bag to enter between the pressure surface and the conveyor belt.

2. A simple active bag conveying device for preventing compression and breakage of material bags according to claim 1, characterized in that: The pressure wheel mechanism includes a support seat and a swing arm, the support seat is fixed to the support frame; a support shaft is provided in the middle of the swing arm, and the swing arm is rotatably connected to the support seat through the support shaft; the pressure wheel is rotatably connected to the end of the swing arm, and the pressure wheel is driven to rotate around the support shaft through the swing arm, so that the pressure wheel is close to or away from the conveyor belt.

3. A simple active bag conveying device for preventing compression and breakage of material bags according to claim 2, characterized in that: The pressure wheel mechanism also includes a support rod and an elastic element; the support rod is fixed to the support seat; one end of the elastic element is connected to the support rod, and the other end is connected to the end of the swing arm away from the pressure wheel; the elastic element provides an elastic force to make the pressure wheel close to the conveyor belt.

4. A simple active bag conveying device for preventing crushing of material bags according to claim 3, characterized in that: The pressure wheel mechanism also includes a handle, with a gripping portion and a connecting portion formed at both ends of the handle respectively. The handle is connected to the end of the swing arm close to the pressure wheel through the connecting portion; the swing arm is driven to rotate around the support shaft by rotating the handle, so that the pressure wheel is moved closer to or away from the conveyor belt.

5. The simple active bag conveying device for preventing crushing of material bags according to claim 3 is characterized in that: The axis of the pressure wheel is parallel to the axis of the driven roller, and the axis of the pressure wheel is arranged above the axis of the driven roller in the direction of gravity.

6. A simple active bag conveying device for preventing crushing of material bags according to claim 1, characterized in that: It also includes a limiting mechanism; the limiting mechanism and the pressure wheel are arranged on two opposite sides of the conveyor belt; the limiting mechanism includes an adjusting seat and a baffle; the baffle is used to limit the edge of the other side of the material bag, and a bag conveying width interval is formed between the baffle and the pressure wheel; one end of the adjusting seat is connected to the support frame, and the other end is slidably connected to the baffle, and the sliding direction of the baffle is parallel to the axis of the driven roller; so that the baffle can be translated relative to the adjusting seat to adjust the size of the bag conveying width interval.

7. A simple active bag conveying device for preventing crushing of material bags according to claim 6, characterized in that: The limiting mechanism also includes a pressure plate, which is arranged on the side of the baffle plate close to the pressure wheel, and a bag conveying height gap is formed between the pressure plate and the conveyor belt for the material bag to pass through; the pressure plate is slidably connected to the baffle plate, and the sliding direction is perpendicular to the axis of the driven roller, so that the pressure plate can translate relative to the baffle plate to adjust the size of the bag conveying height gap.

8. A simple active bag conveying device for preventing crushing of material bags according to claim 7, characterized in that: A first guide portion is formed on one side of the baffle plate close to the feed end, and the first guide portion extends in a direction away from the pressing wheel, so that the width spacing of the bale conveying gradually expands in the direction of the feed end; A second guide portion is formed on one side of the pressing plate close to the feed end, and the second guide portion extends in a direction away from the conveyor belt, so that the bag conveying height gap gradually expands in the direction of the feed end.

9. The simple active bag conveying device for preventing crushing of material bags according to claim 1, characterized in that: The guide mechanism comprises a first bracket, a first guide wheel shaft is arranged on the first bracket, the first guide wheel shaft is parallel to the driven roller, and the first guide wheel shaft is arranged close to the feed end of the conveyor belt; The guide mechanism includes a first guide wheel assembly, the first guide wheel assembly includes a first guide roller, the first guide roller is arranged on the circumference of the first guide wheel shaft through a bearing sleeve; retaining rings are arranged at both ends of the first guide roller.

10. A simple active bag conveying device for preventing crushing of material bags according to claim 9, characterized in that: A second guide wheel shaft is disposed on the first bracket, the second guide wheel shaft is parallel to the first guide wheel shaft, and the second guide wheel shaft is disposed on one side of the first guide wheel shaft in a lateral direction; The guide mechanism comprises a second guide wheel assembly, the second guide wheel assembly comprises a second guide roller, the second guide roller is sleeved on the circumference of the second guide wheel shaft through a bearing; retaining rings are arranged at both ends of the second guide roller; The guide mechanism further includes a second bracket, one end of which is rotatably connected to the first bracket, and the other end of which is provided with a third guide wheel shaft; a locking member is also provided on the second bracket, and the locking member can lock the angle between the second bracket and the first bracket between 90° and 110°; the third guide wheel shaft is parallel to the second guide wheel shaft, and the third guide wheel shaft is provided vertically above the second guide wheel shaft; The guide mechanism includes a third guide wheel assembly, and the third guide wheel assembly includes a third guide roller. The third guide roller is circumferentially mounted on the second guide wheel shaft through a bearing sleeve; retaining rings are provided at both ends of the third guide roller.

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