Bag opening edge folding device for bag feeding machine

Abstract

The utility model relates to a bag opening edge folding device for a bag feeding machine, and relates to the field of bag feeding machine equipment. According to the technical scheme, through structural cooperation of the mounting base, the walking channel, the belt wheel, the edge folding base plate, the edge folding assembly, the driving assembly and the pressing rolling wheel, the bag opening of the material bag and the bag bottom on a conveying device of bag feeding machine equipment can be kept consistent in movement, and then it is guaranteed that the bag opening after edge folding is kept flat when conveyed to a sewing device; the condition of wrinkles and unevenness is avoided, and the flatness and the sealing performance of the rear-end pocket mouth sewing process are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bagging machine equipment technical field, especially a bag mouth hemming device for bagging machine. BACKGROUND

[0002] In the material packaging industry, properly sewing the bag mouth filled with material is the key link to ensure product quality and transportation safety. The bagging machine equipment plays an important role in this process, and its conveying device is responsible for accurately conveying the bag mouth to the bag mouth hemming device. The bag mouth hemming device needs to hem the bag mouth to lay the foundation for the subsequent sewing process. After completing the hemming, the bag mouth is transferred to the bag mouth sewing device of the bagging machine equipment for sewing. The whole process is closely linked, and any problem in any link may affect the packaging quality.

[0003] However, the traditional bag mouth hemming device has significant defects. Since it does not have the function of actively conveying the bag mouth, it completely relies on the pushing of the conveying device, making it difficult to keep the bag mouth and the bag bottom on the conveying device moving in unison. In actual operation, the conveying device usually runs at a constant speed, while the bag mouth at the hemming device may be affected by factors such as resistance and friction caused by the hemming operation, resulting in a speed difference between the bag mouth and the bag bottom. This speed difference will make the hemmed bag mouth unable to maintain flatness when being conveyed to the sewing device, resulting in wrinkles and unevenness. Wrinkles and unevenness during sewing of the bag mouth not only affect the appearance of the package, but also may cause the bag mouth to be not tightly sealed, resulting in material leakage during transportation, etc., causing economic losses and quality risks to the enterprise. SUMMARY

[0004] The utility model aims at providing a bag mouth hemming device for bagging machine to solve the problems existing in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0006] A bag mouth hemming device for bagging machine is used for hemming the bag mouth of a material bag, which comprises:

[0007] A mounting seat is mounted on the rack of the bagging machine, having a walking channel for the bag mouth of the material bag to pass through, and a plurality of pulleys are arranged on both sides of the walking channel inside the mounting seat, and the pulleys on one side are connected by a synchronous belt;

[0008] A pair of hemming base plates are installed on the mounting seat along the walking channel, and the distance between the pair of hemming base plates is consistent with the walking channel;

[0009] A folding assembly is installed on the mounting base and folds the bag opening of the material bag by cooperating with the folding base plate; and

[0010] A driving assembly is installed on the mounting base and located at the bag outlet end of the walking channel and is in transmission connection with the belt pulley;

[0011] The driving assembly is further in transmission connection with a pair of pressing rollers, and the pair of pressing rollers are located at the bag outlet end of the walking channel and are matched with the folding height of the bag opening of the material bag, and are used for pressing and reinforcing the bag opening of the material bag after folding.

[0012] In a possible implementation, the folding assembly comprises:

[0013] A hinged seat is installed on the mounting base;

[0014] A telescopic cylinder is hingedly connected at the front end of the hinged seat, and the piston rod of the telescopic cylinder is hingedly connected at the front end of the hinged seat; and

[0015] A folding arc plate is installed at the front end of the piston rod and is used for folding the bag opening of the material bag by cooperating with the folding base plate.

[0016] In a possible implementation, the driving assembly comprises:

[0017] A fixed frame is installed on the mounting base and located at the bag outlet end of the walking channel;

[0018] A motor reducer is installed on the fixed frame;

[0019] A driving shaft is rotatably installed on the fixed frame through a bearing seat, the top end of the driving shaft is in transmission connection with the motor reducer, and the bottom end of the driving shaft is connected with one of the belt pulleys on the first side of the walking channel; and

[0020] Three driven shafts are rotatably installed on the fixed frame through bearing seats, the bottom end of one of the driven shafts is connected with one of the belt pulleys on the second side of the walking channel, and the bottom ends of the other two driven shafts are respectively connected with a pair of pressing rollers;

[0021] The driving shaft and the three driven shafts are all sleeved with sprockets, and the four sprockets are in transmission connection through a chain.

[0022] In a possible implementation, the folding assembly is two and is sequentially arranged along the walking channel.

[0023] In a possible implementation, the bag inlet end of the walking channel is in the shape of a flared mouth.

[0024] In a possible implementation, the bag inlet ends of the pair of the folded edge substrates are in the shape of a flared mouth.

[0025] The technical scheme provided by the utility model has at least the following beneficial effects:

[0026] The technical scheme is matched with the mounting seat, the walking passage, the pulley, the folded edge substrate, the folded edge assembly, the driving assembly and the compression roller, so that the bag opening of the material bag is kept consistent with the movement of the bag bottom on the conveying device of the bagging machine, and then the folded edge bag opening is kept flat when being conveyed to the sewing device, so that the uneven folding is avoided, and the flatness and the sealing of the rear bag opening sewing process are improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute the limitation to the utility model.

[0028] Figure 1 The working state schematic diagram of the bag opening folding device for the bagging machine is shown.

[0029] Figure 2 The main sectional view of the bag opening folding device for the bagging machine is shown.

[0030] Figure 3 The top view of the bag opening folding device for the bagging machine is shown.

[0031] In the drawings:

[0032] 1, the bag opening folding device for the bagging machine; 2, the material bag;

[0033] 11, the mounting seat; 12, the walking passage; 13, the pulley; 14, the folded edge substrate; 15, the folded edge assembly; 16, the driving assembly; 17, the compression roller;

[0034] 151, the hinge seat; 152, the telescopic cylinder; 153, the piston rod; 154, the folded edge arc plate;

[0035] 161, the fixed frame; 162, the motor speed reducer; 163, the driving shaft; 164, the driven shaft; 165, the chain wheel. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0037] Wherein, same components are denoted by same reference numerals. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings of the present application, and the words "bottom" and "top", "inner" and "outer" refer to the directions towards or away from a specific component. In addition, the terms "first" and "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more.

[0038] The present application will be further described below in conjunction with the drawings and embodiments.

[0039] Figure 1 A working state schematic diagram of a bag mouth edge folding device for a bagging machine provided by one exemplary embodiment of the present application is shown, Figure 2 A main sectional view of a bag mouth edge folding device for a bagging machine provided by one exemplary embodiment of the present application is shown, Figure 3A top view of a bag mouth folding device for a bagging machine is shown, the bag mouth folding device 1 is used for folding the bag mouth of a material bag 2, and the bag mouth folding device 1 comprises a mounting seat 11, a pair of folding base plates 14, a folding assembly 15 and a driving assembly 16, the mounting seat 11 is mounted on the rack of the bagging machine, the mounting seat 11 has a walking channel 12 in the middle for the bag mouth of the material bag 2 to pass through, a plurality of pulleys 13 are arranged on both sides of the walking channel 12 inside the mounting seat 11, and the plurality of pulleys 13 on one side are connected through a synchronous belt; the pair of folding base plates 14 are mounted on the mounting seat 11 along the walking channel 12, and the spacing of the pair of folding base plates 14 is consistent with the walking channel 12; the folding assembly 15 is mounted on the mounting seat 11 and folds the bag mouth of the material bag 2 by cooperating with the folding base plate 14; the driving assembly 16 is mounted on the mounting seat 11 and located at the bag outlet end of the walking channel 12, and the driving assembly 16 is in transmission connection with the pulley 13; wherein the driving assembly 16 is further in transmission connection with a pair of pressing rollers 17, the pair of pressing rollers 17 are located at the bag outlet end of the walking channel 12 and are matched with the bag mouth folding height of the material bag 2, and are used for pressing and reinforcing the bag mouth of the material bag 2 after folding.

[0040] Preferably, the walking channel 12 and the bag inlet end of the pair of folding base plates 14 are both in the shape of a trumpet mouth, facilitating the introduction of the bag mouth of the material bag 2.

[0041] In the embodiment of the present application, the bag mouth folding device 1 for the bagging machine plays a key role in folding the bag mouth in the entire bagging machine equipment, and various components work closely together to efficiently complete the bag mouth folding work of the material bag 2. The mounting seat 11 serves as a basic support and is firmly mounted on the rack of the bagging machine, the walking channel 12 in the middle is a necessary path for the bag mouth of the material bag 2, and a plurality of pulleys 13 are arranged on both sides and connected through a synchronous belt, thereby providing preliminary power support for the conveying of the material bag 2. The pair of folding base plates 14 are installed along the walking channel 12 and have a consistent spacing with the walking channel 12, thereby providing a stable reference for the folding operation.

[0042] Further, the folding assembly 15 comprises a hinged seat 151, a telescopic cylinder 152 and a folding arc plate 154, the hinged seat 151 is mounted on the mounting seat 11; the front end of the telescopic cylinder 152 is hinged to the rear end of the hinged seat 151, and the front end of the piston rod 153 of the telescopic cylinder 152 is hinged to the front end of the hinged seat 151; the folding arc plate 154 is mounted on the front end of the piston rod 153 and is used for folding the bag mouth of the material bag 2 in cooperation with the folding base plate 14.

[0043] In the embodiment of the present application, when the telescopic cylinder 152 is working, the piston rod 153 thereof is extended, and under the action of the hinged seat 151, the flapped arc plate 154 is flipped to fold the edge. The ingenious hinged design enables the telescopic cylinder 152 to flexibly control the action of the flapped arc plate 154, so as to cooperate with the flapped base plate 14 and accurately fold the bag opening of the material bag 2.

[0044] Preferably, the flapping assembly 15 is two, which are arranged in sequence along the walking channel 12, and the sum of the widths of the two flapping assemblies 15 is equal to the bag opening width of one material bag 2 (it can be understood that when the flapping assembly 15 is one, the width of the flapping assembly 15 is equal to the bag opening width of one material bag 2). Please refer to Figure 1 When the flapping assembly 15 is two, after the first material bag 2 completely passes through the first flapping assembly 15, the first flapping assembly 15 can be lifted to guide the second material bag 2; when the second material bag 2 is half guided, the first material bag 2 completely passes through the second flapping assembly 15, at this time, the second flapping assembly 15 is also lifted, and the second material bag 2 continues to move forward until the bag opening of the material bag 2 coincides with the width of the two flapping assemblies 15, and the two flapping assemblies 15 simultaneously fold the bag opening of the material bag 2, and after the second material bag 2 completely passes through the first flapping assembly 15, the first flapping assembly 15 can be lifted again to guide the next material bag 2, so as to realize continuous feeding of the material bag without stopping, ensure the continuous operation, and improve the work efficiency.

[0045] Further, the driving assembly 16 comprises a fixed frame 161, a motor reducer 162, a driving shaft 163, and three driven shafts 164. The fixed frame 161 is installed on the mounting seat 11 and located at the bag outlet end of the walking channel 12. The motor reducer 162 is installed on the fixed frame 161. The driving shaft 163 is rotatably installed on the fixed frame 161 through a bearing seat. The top end of the driving shaft 163 is in transmission connection with the motor reducer 162, and the bottom end of the driving shaft 163 is connected with one of the pulleys 13 on the first side of the walking channel 12. The three driven shafts 164 are rotatably installed on the fixed frame 161 through bearing seats. The bottom end of one of the driven shafts 164 is connected with one of the pulleys 13 on the second side of the walking channel 12, and the bottom ends of the other two driven shafts 164 are respectively connected with a pair of pressing rollers 17. Among them, a sprocket 165 is sleeved on the driving shaft 163 and the three driven shafts 164, and the four sprockets 165 are transmission connected through a chain.

[0046] In the embodiment of the application, the fixed frame 161 is installed on the mounting seat 11 to provide stable support for other components. The motor speed reducer 162 is installed on the fixed frame 161 to convert high-speed rotation of the motor into low-speed and high-torque output, thereby providing power for the entire driving assembly. When the motor speed reducer 162 operates, the driving shaft 163 drives the three driven shafts to rotate synchronously under the action of the chain wheels 165, thereby ensuring that the two side pulleys 13 and the pair of pressing rollers 17 rotate synchronously. The two side pulleys 13 can drive the bag opening of the material bag to move in unison with the bag bottom on the conveying device of the bagging machine, and the pair of pressing rollers 17 can further ensure the folding effect and prevent the bag opening from loosening, thereby improving the packaging quality.

[0047] Next, the working principle of the bag opening folding device for the bagging machine is described.

[0048] First, when the motor speed reducer starts, the high-speed rotation of the motor is converted into low-speed and high-torque output, thereby providing power for the entire device.

[0049] Second, the power output of the motor speed reducer is transmitted to the driving shaft, so that the driving shaft starts to rotate.

[0050] Subsequently, since the driving shaft and the three driven shafts are each sleeved with a chain wheel, and the four chain wheels are connected through a chain transmission, when the driving shaft rotates, the three driven shafts are driven to rotate synchronously through the transmission of the chain wheels and the chain.

[0051] Then, since the driving shaft is connected to one of the pulleys on the first side of the walking channel, and one of the driven shafts is connected to one of the pulleys on the second side of the walking channel, the driven shaft rotates synchronously with the driving shaft, thereby driving the pulleys on both sides of the walking channel to rotate. Since the multiple pulleys on the same side are connected through a synchronous belt, the rotation of the pulleys on both sides drives the synchronous belt to move, thereby conveying the bag opening of the material bag along the walking channel, and ensuring that the bag opening moves in unison with the bag bottom on the conveying device of the bagging machine.

[0052] Then, when the telescopic cylinder works, the piston rod thereof extends. Since the telescopic cylinder, the piston rod, the hinge seat, and the hinge structure between the folding arc plate and the piston rod are connected, the extension of the piston rod drives the folding arc plate to flip and fold the edges. The folding arc plate cooperates with the folding base plate to fold the edges of the passing bag opening.

[0053] Finally, since the other two driven shafts are connected to the pair of pressing rollers, the rotation of the driven shafts drives the pressing rollers to rotate synchronously, thereby pressing and reinforcing the bag opening of the folded material bag, ensuring the folding effect and preventing the bag opening from loosening.

[0054] In conclusion, the technical scheme can keep the bag opening of the material bag consistent with the bag bottom movement on the conveying device of the bagging machine equipment through the structure cooperation of the mounting seat, the walking channel, the belt wheel, the folded edge base plate, the folded edge assembly, the driving assembly and the pressing roller, thereby ensuring that the folded edge bag opening is kept flat when being conveyed to the sewing device, avoiding the uneven folding, and improving the flatness and sealing of the bag opening sewing process.

[0055] In the embodiments disclosed in the present application, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense. For example, "connecting" can be fixedly connected, or detachably connected, or integrally connected. "Connecting" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments disclosed in the present application can be understood according to the specific circumstances.

[0056] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A bag mouth hemming device for a bagger for hemming a bag mouth of a material bag (2), characterized by, The bag mouth folding device (1) for the bagging machine comprises: a mounting seat (11) mounted on the frame of the bagging machine, wherein a walking channel (12) for the bag mouth of the material bag (2) to pass through is arranged in the middle, a plurality of belt pulleys (13) are arranged on both sides of the walking channel (12) inside, the plurality of belt pulleys (13) on one side are connected by a synchronous belt; a pair of folding base plates (14) mounted on the mounting seat (11) along the walking channel (12), the interval of the pair of folding base plates (14) is consistent with the walking channel (12); a folding assembly (15) mounted on the mounting seat (11) and folding the bag mouth of the material bag (2) by cooperating with the folding base plate (14); and a driving assembly (16) mounted on the mounting seat (11) and located at the bag outlet end of the walking channel (12), which is in transmission connection with the belt pulley (13); wherein the driving assembly (16) is further in transmission connection with a pair of pressing rollers (17), the pair of pressing rollers (17) are located at the bag outlet end of the walking channel (12) and are matched with the folding height of the bag mouth of the material bag (2), and are used for pressing and reinforcing the bag mouth of the material bag (2) after folding.

2. The bag mouth hemming device for a bagger according to claim 1, characterized by The folding assembly (15) comprises: a hinged seat (151) mounted on the mounting seat (11); a telescopic air cylinder (152) with the front end hinged to the rear end of the hinged seat (151), and the piston rod (153) of the telescopic air cylinder (152) hinged to the front end of the hinged seat (151); and a folding arc plate (154) mounted on the front end of the piston rod (153) and used for folding the bag mouth of the material bag (2) by cooperating with the folding base plate (14).

3. The bag mouth hemming device for a bagger according to claim 1, characterized by The driving assembly (16) comprises: a fixed frame (161) mounted on the mounting seat (11) and located at the bag outlet end of the walking channel (12); a motor reducer (162) mounted on the fixed frame (161); a driving shaft (163) rotatably mounted on the fixed frame (161) through a bearing seat, the top end of the driving shaft (163) is in transmission connection with the motor reducer (162), and the bottom end of the driving shaft (163) is connected with one of the belt pulleys (13) on the first side of the walking channel (12); and three driven shafts (164), the three driven shafts (164) are rotatably mounted on the fixed frame (161) through bearing seats, the bottom end of one of the driven shafts (164) is connected with one of the belt pulleys (13) on the second side of the walking channel (12), and the bottom ends of the other two driven shafts (164) are respectively connected with a pair of pressing rollers (17); wherein a sprocket (165) is sleeved on the driving shaft (163) and the three driven shafts (164), and the four sprockets (165) are in transmission connection through a chain.

4. The bag mouth hemming device for a bagger according to claim 1, characterized by The folding assembly (15) is two, which are arranged in sequence along the walking channel (12).

5. The bag mouth hemming device for a bagger according to any one of claims 1 to 4, characterized in that, The bag inlet end of the walking channel (12) is in the shape of a bell mouth.

6. The bag mouth hemming device for a bagger according to any one of claims 1 to 4, characterized in that, The bag-in end of the pair of the folded edge substrates (14) is flared.

Images