Tobacco bale flat belt transmission tension compensation device and filling machine thereof

Abstract

The utility model relates to the technical field of tobacco machinery, in particular to a tobacco bale flat belt transmission tension compensation device and a filling machine thereof. The tobacco bale flat belt transmission tensioning force compensation device comprises a device support, a roller support and a tensioning roller, the device support is installed on a machine frame of the filling machine, the tensioning roller is arranged on one side of the roller support in an axial rotating mode, and the other side of the roller support can be arranged on the device support in a penetrating mode in a linear moving mode. A plurality of springs are arranged in a gap between the roller support and the device support in parallel at intervals, the elastic force extending track of the springs is parallel to the linear moving track of the roller support, and the outer circumferential face of the tensioning roller abuts against a flat belt on a cigarette packet conveying system of the filling machine in a pressed mode on the outer side under the elastic force action of the springs. And the tensioning roller and the flat belt rotate synchronously. After the tobacco bale flat belt transmission tensioning force compensation device is installed on a machine frame of a filling machine, the outer side of a flat belt can be pressed tightly through the tensioning idler wheel, and tobacco bales are prevented from being toppled.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco machinery, in particular to a cigarette pack flat belt transmission tension compensation device and a filling machine using the cigarette pack flat belt transmission tension compensation device. Background Art

[0002] As a star product, the side-opening "Jinzhongzhi" brand cigarettes have been favored by consumers since they were launched. In the production process of this brand of cigarettes, if the manual hand-wrapping line is still used for packaging, a series of problems such as low efficiency, poor consistency, high cost and high error rate are likely to occur. Therefore, the cigarette factory introduced a filling machine to achieve high speed and stability of cigarette packs into the box. However, during the actual debugging process, it was found that the cigarette packs were inverted during the transportation process, which caused unstable equipment operation, frequent shutdowns and cigarette packs extrusion and deformation.

[0003] After research, it was found that the existing cigarette pack conveying system of the filling machine conveys cigarette packs through flat belt transmission, but due to the lack of tension compensation device, it is not only unable to compensate for the flat belt elongation caused by long-term operation, but also the flat belts on both sides of the cigarette packs are not running synchronously and are subjected to unilateral force during the conveying process, which eventually leads to the cigarette packs being inverted, resulting in cigarette packs being squeezed and deformed, etc. Therefore, in view of the above problems, it is necessary to improve the existing system to ensure the stability and quality of cigarette pack conveying. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a cigarette pack flat belt transmission tensioning force compensation device capable of preventing cigarette packs from falling over.

[0005] The utility model adopts the following technical solutions:

[0006] The utility model provides a cigarette pack flat belt transmission tensioning force compensation device, comprising a device bracket, a roller bracket and a tensioning roller, the device bracket is installed on the frame of a filler, the tensioning roller is axially rotatably arranged on one side of the roller bracket, the other side of the roller bracket is linearly movable and penetrates the device bracket, a plurality of springs are arranged in parallel and at intervals in the gap between the roller bracket and the device bracket, the elastic force extension trajectory of the springs is parallel to the linear movement trajectory of the roller bracket, the outer circumferential surface of the tensioning roller is in pressure contact with the flat belt on the cigarette pack conveying system of the filler at the outside under the elastic force of the plurality of springs, and the tensioning roller rotates synchronously with the flat belt.

[0007] Preferably, a first bar block is provided on the device bracket, and a second bar block is provided on the roller bracket. The first bar block is provided with a plurality of through holes spaced apart along a straight line. A plurality of plug-in shafts are correspondingly provided on one side of the second bar block. The plurality of plug-in shafts are correspondingly inserted into the plurality of through holes one by one, and each plug-in shaft passes through the first bar block.

[0008] Preferably, two springs are arranged in parallel and at intervals, two first countersunk holes extending in a straight line are symmetrically arranged at both ends of the first bar block, and two second countersunk holes extending in a straight line are correspondingly arranged at both ends of the second bar block on the plug-in shaft side, one end of the two springs are respectively located in the two first countersunk holes, and the other ends of the two springs are respectively located in the two second countersunk holes, and multiple plug-in shafts are located in the interval space between the two springs.

[0009] Preferably, a limit stopper is further included, and one end of each plug-in shaft passing through the first strip block is axially connected to a limit stopper.

[0010] Preferably, two mounting plates are spaced apart on the side of the second strip block away from the plug-in shaft, a connecting shaft is vertically arranged between the two mounting plates, the tensioning roller is passed through the connecting shaft, and deep groove ball bearings are respectively arranged at both axial ends of the tensioning roller, the outer ring of the deep groove ball bearing is connected and fixed to the inner wall of the tensioning roller, and the inner ring of the deep groove ball bearing is connected and fixed to the outer wall of the connecting shaft.

[0011] Preferably, a fixing plate is provided on the device bracket, the fixing plate is vertically installed at the edge of the first strip block, a strip mounting groove is opened on the fixing plate, and the threaded fastener passes through the strip mounting groove and is screwed on the frame of the loader.

[0012] The utility model also provides a filling machine, including two left and right conveyor belts arranged opposite to each other in the same horizontal plane, the cigarette packs are located in the interval space between the two conveyor belts and are simultaneously conveyed by abutting against the flat belts on the two conveyor belts, and the frame of the filling machine is equipped with two of the above-mentioned cigarette pack flat belt transmission tension compensation devices, and the two cigarette pack flat belt transmission tension compensation devices are respectively located on the outside of the two conveyor belts.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] After the cigarette pack flat belt transmission tension compensation device of the utility model is installed on the frame of the filler, it can press the outer side of the flat belt through the tension roller. If the flat belt operates normally, the tension roller supports the flat belt through the pressure provided by the spring, so that the flat belt maintains the necessary tension. As the use time increases, the flat belt may become longer due to stretching, resulting in a decrease in the tension. At this time, the rebound force of the spring will push the roller bracket to move outward, thereby driving the tension roller to roll outward, thereby offsetting the lengthening of the flat belt, automatically compensating for the reduction in tension, and preventing the cigarette pack from falling over.

[0015] The filling machine of the present invention arranges the above-mentioned cigarette pack flat belt transmission tension compensation device on the outer sides of the left and right conveyor belts, so that it can prevent the flat belt from being stretched while making the flat belts on both sides of the cigarette pack run synchronously as much as possible to avoid unilateral force, thereby effectively ensuring the high-speed and stable operation of the filling machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the cigarette pack flat belt transmission tension compensation device in the embodiment of the utility model.

[0017] Figure 2 It is a first perspective schematic diagram of the upper device bracket of the cigarette pack flat belt transmission tensioning force compensation device in an embodiment of the utility model.

[0018] Figure 3 It is a second viewing angle schematic diagram of the upper device bracket of the cigarette pack flat belt transmission tensioning force compensation device in an embodiment of the utility model.

[0019] Figure 4 It is a first-view schematic diagram of a roller bracket on a cigarette pack flat belt transmission tension compensation device in an embodiment of the utility model.

[0020] Figure 5 It is a second viewing angle schematic diagram of the roller bracket on the cigarette pack flat belt transmission tension compensation device in the embodiment of the utility model.

[0021] Figure 6 It is a structural schematic diagram of a tensioning roller on a tensioning force compensation device for a cigarette pack flat belt drive in an embodiment of the utility model.

[0022] Figure 7 It is a schematic structural diagram of a spring on a tensioning force compensation device for a cigarette pack flat belt drive in an embodiment of the utility model.

[0023] Figure 8 It is a structural schematic diagram of the upper limit stopper of the tensioning force compensation device of the cigarette pack flat belt transmission in the embodiment of the utility model.

[0024] The reference numerals are described as follows:

[0025] 1. Mounting bracket 202 and plug-in shaft

[0026] 101, first strip block 203, second countersunk hole

[0027] 102, through hole 204, mounting plate

[0028] 103, first countersunk hole 3, tension roller

[0029] 104, fixed plate 301, connecting shaft

[0030] 105, Strip mounting groove 302, Deep groove ball bearing

[0031] 2. Roller bracket 4. Spring

[0032] 201, second strip block 5, limit stop DETAILED DESCRIPTION

[0033] The following is a further detailed description of the specific implementations of the present invention in conjunction with the accompanying drawings. These implementations are only used to illustrate the present invention, but not to limit the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In addition, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0037] See also Figure 1 The present embodiment provides a tension compensation device for a cigarette pack flat belt transmission, comprising a device bracket 1, a roller bracket 2 and a tension roller 3. The device bracket 1 is mounted on a frame of a filler, and the tension roller 3 is axially rotatably arranged on one side of the roller bracket 2, and the other side of the roller bracket 2 is linearly movable and penetrates the device bracket 1. A plurality of springs 4 are arranged in parallel and at intervals in the gap between the roller bracket 2 and the device bracket 1, and the elastic extension trajectory of the spring 4 is parallel to the linear movement trajectory of the roller bracket 2. The outer circumferential surface of the tension roller 3 is in pressure contact with the flat belt on the cigarette pack conveying system of the filler at the outside under the elastic force of the plurality of springs 4, and the tension roller 3 rotates synchronously with the flat belt.

[0038] After the cigarette pack flat belt transmission tension compensation device of this embodiment is installed on the frame of the filler, it can press the outer side of the flat belt through the tension roller 3. If the flat belt operates normally, the tension roller 3 will support the flat belt through the pressure provided by the spring 4, so that the flat belt maintains the necessary tension. As the use time increases, the flat belt may become longer due to stretching, resulting in a decrease in tension. At this time, the rebound force of the spring 4 will push the roller bracket 2 to move outward, and then drive the tension roller 3 to roll outward, thereby offsetting the lengthening of the flat belt, automatically compensating for the reduction in tension, and preventing the cigarette pack from falling over.

[0039] Preferably, see Figures 1 to 5 , a first strip block 101 is provided on the device bracket 1, a second strip block 201 is provided on the roller bracket 2, a plurality of through holes 102 are provided on the first strip block 101 along a straight line, a plurality of plug-in shafts 202 are provided on one side of the second strip block 201, and the plurality of plug-in shafts 202 are plugged into the plurality of through holes 102 one by one, and each plug-in shaft 202 passes through the first strip block 101. The matching pattern of the plug-in shaft 202 and the through hole 102 forms a linear moving pair, thereby limiting the movement between the device bracket 1 and the roller bracket 2, and only allowing the tensioning roller 3 on the roller bracket 2 to move along the device bracket 1 in a straight line, thereby realizing stable adjustment of the tension of the flat belt.

[0040] Preferably, see Figure 1 , Figure 2 , Figure 5 and Figure 7 Two springs 4 are arranged in parallel and at intervals, two first countersunk holes 103 extending in a straight line are symmetrically arranged at both ends of the first bar block 101, and two second countersunk holes 203 extending in a straight line are correspondingly arranged at both ends of the second bar block 201 on the plug-in shaft 202 side, one end of the two springs 4 is respectively located in the two first countersunk holes 103, and the other ends of the two springs 4 are respectively located in the two second countersunk holes 203, and multiple plug-in shafts 202 are all located in the interval space between the two springs 4.

[0041] The spring 4 is a key component for realizing tension compensation of the whole device. Symmetrically arranging the spring 4 at both ends of the first strip block 101 can prevent the tension roller 3 from tilting and pressing the flat belt, avoid the flat belt from being subjected to unilateral force, and extend the service life of the flat belt. At the same time, the resilience of the spring 4 itself automatically offsets the reduction in movement accuracy caused by the elongation of the flat belt during long-term operation of the loader, ensuring that the flat belt still maintains appropriate tension after long-term operation, avoiding the problems of elongation and asynchronism between the two sides.

[0042] Preferably, see Figure 1 , Figure 3 , Figure 4 and Figure 8The cigarette pack flat belt transmission tension compensation device of this embodiment further includes a limit stopper 5, and one end of each plug-in shaft 202 passing through the first strip block 101 is axially connected to a limit stopper 5.

[0043] The setting of the limit stop block 5 limits the maximum movement range of the roller bracket 2. On the one hand, it can prevent the roller bracket 2 from excessively moving under the elastic force of the spring 4 and affecting the normal operation of the loader, thereby protecting various components on the loader; on the other hand, it can also detect whether the flat belt needs to be replaced. If the tensioning roller 3 still cannot make the flat belt reach the necessary tension after the spring 4 pushes the roller bracket 2 to move to the extreme position, it means that the flat belt needs to be replaced.

[0044] Preferably, in this embodiment, the limit stopper 5 is fixed to the end of the plug-in shaft 202 in the form of a half.

[0045] Preferably, see Figure 1 , Figure 4 , Figure 5 and Figure 6 Two mounting plates 204 are arranged at intervals on one side of the second strip block 201 away from the plug-in shaft 202, a connecting shaft 301 is arranged vertically between the two mounting plates 204, the tension roller 3 is passed through the connecting shaft 301, and deep groove ball bearings 302 are arranged at both axial ends of the tension roller 3, the outer ring of the deep groove ball bearing 302 is connected and fixed to the inner wall of the tension roller 3, and the inner ring of the deep groove ball bearing 302 is connected and fixed to the outer wall of the connecting shaft 301. The tension roller 3 can rotate freely through the installation of the deep groove ball bearing 302, reducing the friction between the tension roller 3 and the flat belt, thereby reducing wear and increasing the service life.

[0046] Preferably, see Figure 1 In this embodiment, the connecting shaft 301 is fastened between the two mounting plates 204 using a flat head hexagon socket screw and a gasket.

[0047] Preferably, see Figures 1 to 3 The device bracket 1 is provided with a fixing plate 104, which is vertically mounted at the edge of the first strip block 101. The fixing plate 104 is provided with a strip mounting groove 105, and the threaded fastener passes through the strip mounting groove 105 and is screwed on the frame of the loader. The strip mounting groove 105 is used to adjust the distance between the device as a whole and the flat belt, increase the tension adjustable range, and improve the applicability and flexibility of the device; and the fixing plate 104 is fixed to the frame of the loader by threaded fasteners, so that the device and the loader can be connected without interfering with the space requirements of the surrounding equipment, and the threaded fastening connection method is convenient and fast.

[0048] Preferably, see Figures 1 to 3In this embodiment, two strip-shaped mounting grooves 105 are provided on the fixing plate 104, and two hexagon socket screws respectively pass through one strip-shaped mounting groove 105 and are screwed onto the frame of the loader.

[0049] The cigarette pack flat belt transmission tensioning force compensation device of this embodiment has a compact structure and reliable operation. The maintenance-free design concept fundamentally solves quality problems such as inverted pack extrusion and deformation caused by the flat belt being stretched, reduces quality risks of this part, protects key parts of the loader from damage, reduces quality accidents caused by this, and improves equipment efficiency.

[0050] The present embodiment also provides a filling machine, comprising two left and right conveyor belts arranged opposite to each other in the same horizontal plane, the cigarette packs are located in the interval space between the two conveyor belts and are simultaneously conveyed by abutting against the flat belts on the two conveyor belts, and the frame of the filling machine is equipped with two of the above-mentioned cigarette pack flat belt transmission tension compensation devices, and the two cigarette pack flat belt transmission tension compensation devices are respectively located on the outside of the two conveyor belts.

[0051] The loader of this embodiment arranges the above-mentioned cigarette pack flat belt transmission tension compensation device on the outer sides of the left and right conveyor belts, so as to avoid the flat belt from being stretched while making the flat belts on both sides of the cigarette pack run synchronously as much as possible to avoid unilateral force, thereby effectively ensuring the high-speed and stable operation of the loader.

[0052] The overall structure of the filling machine of this embodiment is simple and novel, the operation is simple, and the practicability is high. It has remarkable effects in actual application and basically solves the quality problems such as inverted packages and extrusion deformation caused by flat belt stretching. The unqualified rate is significantly reduced, the operation stability is increased, and the production efficiency and product quality level are effectively improved. It has considerable applicability in the market.

[0053] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A cigarette pack flat belt transmission tension compensation device, characterized in that: The invention comprises a device support (1), a roller support (2) and a tensioning roller (3), wherein the device support (1) is mounted on a frame of a filler, the tensioning roller (3) is axially rotatably arranged on one side of the roller support (2), and the other side of the roller support (2) is linearly movable and penetrates the device support (1), a plurality of springs (4) are arranged in parallel and at intervals in the gap between the roller support (2) and the device support (1), the elastic extension track of the springs (4) is parallel to the linear movement track of the roller support (2), the outer circumferential surface of the tensioning roller (3) is in pressure contact with the flat belt on the cigarette pack conveying system of the filler at the outer side under the elastic force of the plurality of springs (4), and the tensioning roller (3) rotates synchronously with the flat belt.

2. The cigarette pack flat belt transmission tension compensation device according to claim 1, characterized in that: The device bracket (1) is provided with a first bar block (101), the roller bracket (2) is provided with a second bar block (201), the first bar block (101) is provided with a plurality of through holes (102) spaced apart along a straight line, a plurality of plug-in shafts (202) are correspondingly provided on one side of the second bar block (201), the plurality of plug-in shafts (202) are correspondingly inserted into the plurality of through holes (102), and each of the plug-in shafts (202) passes through the first bar block (101).

3. The cigarette pack flat belt transmission tension compensation device according to claim 2, characterized in that: Two springs (4) are arranged in parallel and at intervals, two straight-extending first countersunk holes (103) are symmetrically arranged at both ends of the first bar block (101), and two straight-extending second countersunk holes (203) are correspondingly arranged at both ends of the second bar block (201) on the plug-in shaft (202) side, one end of the two springs (4) is respectively located in the two first countersunk holes (103), the other end of the two springs (4) is respectively located in the two second countersunk holes (203), and the plurality of plug-in shafts (202) are all located in the interval space between the two springs (4).

4. The cigarette pack flat belt transmission tension compensation device according to claim 2, characterized in that: It also includes a limit stopper (5), and one end of each of the plug-in shafts (202) passing through the first strip block (101) is axially connected to one of the limit stoppers (5).

5. The cigarette pack flat belt transmission tension compensation device according to claim 2, characterized in that: Two mounting plates (204) are arranged at intervals on one side of the second strip block (201) away from the plug-in shaft (202); a connecting shaft (301) is vertically arranged between the two mounting plates (204); the tensioning roller (3) is passed through the connecting shaft (301); and deep groove ball bearings (302) are respectively arranged at two axial ends of the tensioning roller (3); the outer ring of the deep groove ball bearing (302) is connected and fixed to the inner wall of the tensioning roller (3); and the inner ring of the deep groove ball bearing (302) is connected and fixed to the outer wall of the connecting shaft (301).

6. The cigarette pack flat belt transmission tension compensation device according to claim 2, characterized in that: The device bracket (1) is provided with a fixing plate (104), the fixing plate (104) is vertically mounted at the edge of the first strip block (101), the fixing plate (104) is provided with a strip mounting groove (105), and a threaded fastener passes through the strip mounting groove (105) and is screwed onto the frame of the loader.

7. A filling machine, comprising two conveyor belts on the same horizontal plane arranged opposite to each other, wherein the cigarette pack is located in the space between the two conveyor belts and is simultaneously abutted against the flat belts on the two conveyor belts for conveyance, characterized in that: Two cigarette pack flat belt transmission tension compensation devices according to any one of claims 1 to 6 are installed on the frame of the filling machine, and the two cigarette pack flat belt transmission tension compensation devices are respectively located on the outside of the two conveyor belts.

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