Chain type conveying mechanism and station packaging machine

Abstract

Compared with the prior art, the chain type conveying mechanism and the station packaging machine have the advantages that the idler wheels are arranged on the transmission chain, and the chain is supported through the idler wheels in the movement process of the transmission chain, so that the friction force between the chain and the guide rail is reduced, the abrasion loss between the chain and the guide rail is reduced, and the service life of the chain is prolonged. The conveying efficiency can be improved, and the service life of the chain and the guide rail can be prolonged; the chain type conveying mechanism comprises a transmission chain and a guide rail used for guiding and supporting the transmission chain, the transmission chain comprises a chain plate and a connecting assembly rotationally connected with the chain plate, the connecting assembly comprises a pin shaft, rolling wheels are rotationally arranged at the two ends of the pin shaft, and the rolling wheels are in rolling friction fit with the guide rail.

Description

TECHNICAL FIELD

[0001] The utility model relates to packing equipment technical field especially chain type conveying mechanism and station packing machine. BACKGROUND

[0002] The utility model discloses a multi-station packing machine for food bag packaging, which comprises a packing bag conveying unit, the packing bag conveying unit comprises a chain type conveying mechanism, the chain type conveying mechanism drives the rotation of the chain through a driving motor, a bag clamping assembly for positioning the packing bag is installed on the chain, and the driving motor drives the bag clamping assembly when the chain moves, so that the effect of conveying the packing bag is realized.

[0003] At present, the chain of the chain type conveying mechanism slides with the support plate below when moving, the friction is large, and the chain and the support plate are abraded when working for a long time, which affects the high-speed rotation of the chain and the service life of the chain and limits the improvement of the conveying efficiency. UTILITY MODEL CONTENTS

[0004] The utility model discloses a chain type conveying mechanism and station packing machine.

[0005] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a chain type conveying mechanism, comprising a transmission chain and a guide rail for guiding and supporting the transmission chain, the transmission chain comprises a plurality of chain plates connected in sequence through pin shafts, a roller is rotatably arranged on each pin shaft, and the roller and the guide rail are in rolling frictional engagement.

[0006] Further, both ends of the guide rail are rotatably provided with sprockets, the transmission chain is wound around the two sprockets, a wear-resistant ring is coaxially arranged on each pin shaft, and the wear-resistant ring is in transmission connection with the sprocket.

[0007] Further, the outer circumferential surface of the sprocket comprises a plurality of tooth portions arranged at intervals, each tooth portion comprises two transmission teeth arranged at intervals, an arc surface adapted to the outer circumferential surface of the wear-resistant ring is arranged between the two transmission teeth, and the distance between two adjacent pin shafts is equal to the distance between two adjacent tooth portions.

[0008] Further, two rollers are arranged on each pin shaft, the two rollers are arranged at two ends of the pin shaft, and the wear-resistant ring is arranged between the two rollers.

[0009] Further, both ends of the guide rail are connected with chain guide pieces adapted to the sprockets, the outer circumferential surface of the chain guide piece is coaxially arranged with the sprocket, the tooth portion can protrude out of the outer circumferential surface, and the outer circumferential surface is in rolling frictional engagement with the roller.

[0010] Further, the chain guide ring comprises two plate bodies arranged at two sides of the sprocket.

[0011] Further, the guide rail comprises a first surface and a second surface arranged oppositely, and the first surface and the second surface are tangent to the upper end and the lower end of the outer circumferential surface respectively.

[0012] Further, the guide rail comprises two guide rails arranged at intervals, and the two chain guide rings are connected to the two ends of the two guide rails, and the first surface and the second surface are surfaces of the two guide rails.

[0013] Further, the lower supporting plate comprises a third surface arranged at intervals in parallel with the second surface, the second surface is located below the first surface, and the interval distance between the third surface and the second surface is greater than the diameter of the roller.

[0014] Further, the lower supporting plate comprises two lower supporting plates arranged at intervals horizontally, and the interval distance between the two lower supporting plates on the side close to each other is greater than or equal to the axial dimension of the wear-resistant ring and less than or equal to the interval distance between the two rollers.

[0015] Further, the application also provides a station packaging machine, which comprises the chain conveying mechanism and a plurality of bag clamping assemblies for positioning packaging bags.

[0016] The chain conveying mechanism and the station packaging machine have the following beneficial effects compared with the prior art: the rollers are arranged on the transmission chain, the chain is supported by the rollers during the movement of the transmission chain, the friction between the chain and the guide rail is reduced, the wear between the chain and the guide rail is reduced, the conveying efficiency is improved, and the service life of the chain and the guide rail is improved; the chain conveying mechanism comprises a transmission chain and a guide rail for guiding and supporting the transmission chain, the transmission chain comprises a chain plate and a connecting assembly rotatably connected to the chain plate, the connecting assembly comprises a pin shaft, rollers are rotatably arranged at both ends of the pin shaft, and the rollers are in rolling frictional engagement with the guide rail. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the chain conveying mechanism of the utility model Figure 1 .

[0018] Figure 2 It is a schematic diagram of the overall structure of the chain conveying mechanism of the utility model Figure 2 .

[0019] Figure 3 It is Figure 1 the local enlarged structure schematic diagram of A place in the chain conveying mechanism of the utility model shown in the figure.

[0020] Figure 4The utility model discloses a chain type conveying mechanism drive connecting plate structure diagram of work station packaging machine

[0021] Figure 5 For Figure 2 The utility model discloses a chain type conveying mechanism B place's partial amplification structure diagram.

[0022] Figure 6 For Figure 5 The utility model discloses a chain type conveying mechanism C place's partial amplification structure diagram.

[0023] Figure 7 The utility model discloses a work station packaging machine structure diagram.

[0024] In the drawing: 1, conveying mechanism;10, drive chain;12, chain wheel;120, tooth part;121, drive tooth;122, arc surface;14, guide rail;140, first face;1400, counterbore;141, lower supporting plate;1410, gap;142, second face;143, third face;144, chain guide;1440, plate body;1441, outer peripheral surface;15, chain plate;150, connecting hole;151, first connecting arm;1510, first lug plate;152, second connecting arm;1520, second lug plate;170, roller;171, pin shaft;172, wear ring;2, bag clamping assembly;3, work station packaging machine. DETAILED DESCRIPTION

[0025] Now make further detailed description to the utility model in combination with the drawings. The drawing is the simplified schematic diagram, and only illustrates the basic structure of the utility model in the schematic way, thus it only shows the constitution related to the utility model.

[0026] Embodiment one

[0027] Please refer to Figures 1-6 The utility model discloses a chain type conveying mechanism 1, including drive chain 10 and being used to the guide rail 14 of drive chain 10 guide support, drive chain 10 includes the hinge connection of the chain plate 15 of several of the pin shaft 171 head-to-tail order, each pin shaft 171 all rotationally arranged with the roller 170, and the roller 170 and guide rail 14 roll friction fit.

[0028] Specifically, refer to Figure 7 In use, the guide rail 14 is fixedly arranged on the frame, and the machine is arranged with a chain wheel 12 at both ends of the guide rail 14, and the drive chain 10 is arranged around the two chain wheels 12, refer to Figure 3 The chain includes the hinge connection of the chain plate 15 of several of head-to-tail order, refer to Figure 4The specific structure of the chain plate 15 is that the two opposite ends of the chain plate 15 are respectively provided with a first connecting arm 151 and a second connecting arm 152, the first connecting arm 151 comprises two first ear plates 1510 arranged in parallel and at intervals, and the second connecting arm 152 comprises two second ear plates 1520 arranged in parallel and at intervals; the distance between the mutually far sides of the two first ear plates 1510 is smaller than the distance between the mutually close sides of the two second ear plates 1520, and the symmetry planes of the two first ear plates 1510 are parallel to the symmetry planes of the two second ear plates 1520. Specifically, the two first ear plates 1510 and the two second ear plates 1520 are symmetrically arranged about the same plane, when the adjacent chain plates 15 are connected, the two first ear plates 1510 are arranged between the two second ear plates 1520 of the adjacent chain plates 15, then the pin shaft 171 is sequentially inserted through the two first ear plates 1510 and the two second ear plates 1520, and the chain plate 15 is connected in a hinged manner, and then the roller 170 is arranged on the pin shaft 171. Through the arrangement, when one of the chain wheels 12 rotates to drive the chain to move, the roller 170 on the chain is in contact with the guide rail 14, and the roller 170 and the guide rail 14 are rolled and rubbed, so that the smooth movement of the chain can be effectively improved, the running resistance is reduced, the friction is reduced, and the service life is improved.

[0029] Further, as a specific embodiment, reference is made to Figures 1-2 Both ends of the guide rail 14 are rotatably provided with a chain wheel 12, the transmission chain 10 is arranged around the two chain wheels 12, a wear-resistant ring 172 is coaxially arranged on each pin shaft 171, and the wear-resistant ring 172 is in transmission connection with the chain wheel 12. Specifically, the wear-resistant ring 172 is sleeved on the pin shaft 171, when the chain wheel 12 drives the chain to move, the wear-resistant ring 172 is in contact with the chain wheel 12, and the wear-resistant ring 172 can be made of wear-resistant metal material; specifically, in actual assembly, the wear-resistant ring 172 is located between the two first ear plates 1510, and in transmission, the wear-resistant ring 172 is in transmission cooperation with the chain wheel 12 and bears the force applied by the chain wheel 12, wherein the wear-resistant ring 172 is made of wear-resistant alloy steel, thereby improving the service life of the chain, and specifically the material of the wear-resistant ring 172 can be selected from chromium-molybdenum alloy steel and nickel-chromium alloy steel.

[0030] Specifically, the wear-resistant ring 172 can be in rotational cooperation with the pin shaft 171, or can be in non-rotational cooperation, and the pin shaft 171 is preferably in rotational cooperation with the wear-resistant ring 172.

[0031] Further, as a specific embodiment, reference is made to Figure 5 , Figure 6The outer circumferential surface 1441 of the sprocket 12 comprises a plurality of tooth portions 120 arranged at intervals, and each tooth portion 120 comprises two transmission teeth 121 arranged at intervals, and an arc surface 122 is arranged between the two transmission teeth 121 and is matched with the outer circumferential surface of the wear-resistant ring 172. The distance between two adjacent pin shafts 171 is equal to the distance between two adjacent tooth portions 120. Specifically, when the transmission chain 10 is sleeved on the two sprockets 12, the wear-resistant ring 172 of the sprocket 12 is matched with the tooth portion 120, the tooth portion 120 comprises two transmission teeth 121 arranged at intervals and the arc surface 122 arranged between the two transmission teeth 121, the radius of the arc surface 122 is equal to the radius of the outer circumferential surface 1441 of the wear-resistant ring 172, and the wear-resistant ring 172 can be in contact with the arc surface 122 between the two transmission teeth 121. This arrangement can improve the stability of transmission, the two transmission teeth 121 can better position the wear-resistant ring 172, ensure the accuracy of the transmission position, and improve the accuracy of conveying.

[0032] Further, as a preferred embodiment, referring to Figure 3 、 Figure 6 , two rollers 170 are arranged on each pin shaft 171, and the two rollers 170 are arranged at two ends of the pin shaft 171, and the wear-resistant ring 172 is arranged between the two rollers 170. Specifically, the two rollers 170 are rotatably arranged at the ends of the two pin shafts 171 and are symmetrically arranged with respect to the wear-resistant ring 172. Through this arrangement, each pin shaft 171 is supported and guided by two rollers 170, which can ensure the stability of the support of the pin shaft 171 and ensure smoother movement of the transmission chain 10.

[0033] Further, as the chain guide 144 matched with the sprocket 12 is arranged at both ends of the guide rail 14, the outer circumferential surface 1441 of the chain guide 144 is coaxially arranged with the sprocket 12, the tooth portion 120 can protrude from the outer circumferential surface 1441, and the outer circumferential surface 1441 is in rolling frictional engagement with the roller 170. Specifically, referring to Figure 1 、 Figure 2 , by arranging the chain guide 144 at both ends of the guide rail 14, the chain guide 144 and the guide rail 14 form an integral structure, which improves the rigidity of the whole. By arranging the arc-shaped outer circumferential surface 1441 on the chain guide 144, the roller 170 is supported by the surface of the roller 170 when the chain passes through the sprocket 12.

[0034] Further, as a specific embodiment, the chain guide ring comprises two plate bodies 1440 arranged at both sides of the sprocket 12. Referring to Figure 5Each chain guide 144 includes two plate bodies 1440 arranged on both sides of the chain wheel 12, the plate body 1440 is a semicircular structure, fixed on the rack, and the two plate bodies 1440 are detachably fixedly connected with the guide rail 14. By arranging two plate bodies 1440, the chain wheel 12 can be provided with a mounting position, and the tooth part 120 of the chain wheel 12 can extend out of the outer circumferential surface 1441.

[0035] Further, as a specific embodiment, referring to Figure 5 The guide rail 14 includes a first surface 140 and a second surface 142 arranged opposite to each other, and the first surface 140 and the second surface 142 are tangent to the upper end and the lower end of the outer circumferential surface 1441, respectively. Specifically, by this arrangement, the first surface 140, the second surface 142 and the outer circumferential surface 1441 can form an annular guide surface, the roller 170 on the transmission chain 10 contacts the guide surface, the first surface 140 provides support force for the roller 170 above it, and when the bag clamping assembly 2 is installed on the transmission chain 10, the first surface 140 can provide support force for the bag clamping assembly 2, ensuring the position accuracy of the bag clamping assembly 2.

[0036] Further, as a specific embodiment, the guide rail 14 includes two guide rails 14 arranged at intervals, and the two chain guide rings are connected to the two ends of the two guide rails 14. The first surface 140 and the second surface 142 are surfaces of the two guide rails 14.

[0037] Further, it can be understood that since the bag clamping assembly 2 is connected with the transmission chain 10, the transmission chain 10 below the second surface 142 is also provided with a bag clamping assembly 2, at this time, the transmission chain 10 will sag and separate from the second surface 142 under the action of gravity, causing the position of the bag clamping assembly 2 below the second surface 142 in the vertical direction to change, which is not conducive to accurate conveying. In order to improve the accuracy, a lower supporting plate 141 is arranged below the second surface 142 and spaced from the second surface 142, the lower supporting plate includes a third surface 143 arranged parallel to and spaced from the second surface 142, the second surface 142 is below the first surface 140, and the spacing distance between the third surface 143 and the second surface 142 is greater than the diameter of the roller 170. Referring to Figure 5 By arranging the lower supporting plate 141, the upper surface of the lower supporting plate 141 can provide support force for the passing transmission chain 10, and the transmission chain 10 can be positioned.

[0038] Further, as a specific embodiment, the lower supporting plates 141 are arranged horizontally and spaced apart, the spacing distance between the two lower supporting plates 141 on the side close to each other is greater than or equal to the axial dimension of the wear-resistant ring 172 and less than or equal to the spacing distance of the two rollers 170. By this arrangement, the lower supporting plates 141 can provide effective support to the two rollers 170 at the two ends of the pin shaft 171, and the gap 1410 between the two supporting plates can form an avoiding passage.

[0039] Embodiment two

[0040] Reference Figure 7 The application also provides a station packaging machine 3, which comprises the chain conveying mechanism 1 described above, and further comprises a plurality of bag clamping assemblies 2 for positioning the packaging bag; along the conveying direction of the chain conveying mechanism 1, the plurality of bag clamping assemblies are uniformly and spaced apart arranged on the transmission chain of the chain conveying mechanism 1.

[0041] Specifically, the station packaging machine 3 comprises two conveying mechanisms 1 arranged in parallel and spaced apart, and a plurality of bag clamping assemblies 2 are arranged between the two conveying mechanisms 1, and the two ends of the bag clamping assemblies 2 are connected with the chain plates 15. The bag clamping assemblies are selected from the structures commonly used in the art, and thus will not be described one by one here. It should be understood by those skilled in the art that specifically, the chain plates 15 are provided with connecting holes 150, and the bag clamping assemblies are detachably and fixedly connected with the connecting holes 150. When the conveying mechanism 1 conveys, the bag clamping assemblies 2 are driven to move and convey the bag body.

[0042] Obviously, the above embodiments are only examples for clearly illustrating, but not limit the embodiments. For those skilled in the art, based on the above description, other different forms of changes or variations can also be made. Here, it is not necessary and impossible to enumerate all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A chain conveyor mechanism characterized by, The application relates to a chain conveying mechanism (1) comprising a transmission chain (10) and a guide rail (14) for guiding and supporting the transmission chain (10), wherein the transmission chain (10) comprises a plurality of chain plates (15) connected in sequence by pin shafts (171), each of the pin shafts (171) is provided with a roller (170) rotating thereon, and the roller (170) is in rolling frictional engagement with the guide rail (14).

2. A chain conveyor according to claim 1, characterized in that Both ends of the guide rail (14) are provided with sprockets (12), the transmission chain (10) is arranged around the two sprockets (12), each of the pin shafts (171) is coaxially provided with a wear-resistant ring (172), and the wear-resistant ring (172) is in transmission connection with the sprocket (12).

3. A chain conveyor according to claim 2, wherein The outer circumferential surface (1441) of the sprocket (12) comprises a plurality of tooth portions (120) arranged at intervals, each of the tooth portions (120) comprises two transmission teeth (121) arranged at intervals, an arc surface (122) matched with the outer circumferential surface of the wear-resistant ring (172) is arranged between the two transmission teeth (121), and the distance between two adjacent pin shafts (171) is equal to the distance between two adjacent tooth portions (120).

4. A chain conveyor according to claim 2 or 3, characterised in that Each of the pin shafts (171) is provided with two rollers (170), the two rollers (170) are arranged at two ends of the pin shaft (171), and the wear-resistant ring (172) is arranged between the two rollers (170).

5. A chain conveyor mechanism according to claim 3, wherein Both ends of the guide rail (14) are connected with chain guiding elements (144) matched with the sprockets (12), the outer circumferential surface (1441) of the chain guiding element (144) is coaxially arranged with the sprocket (12), the tooth portion (120) can extend out of the outer circumferential surface (1441), and the outer circumferential surface (1441) is in rolling frictional engagement with the roller (170).

6. A chain conveyor according to claim 5, wherein The chain guiding element (144) comprises two plate bodies (1440) arranged at two sides of the sprocket (12).

7. A chain conveyor mechanism according to claim 5, wherein The guide rail (14) comprises a first surface (140) and a second surface (142) arranged oppositely, and the first surface (140) and the second surface (142) are tangent to the upper end and the lower end of the outer circumferential surface (1441) respectively.

8. A chain conveyor according to claim 7, wherein The guide rail (14) comprises two guide rails (14) arranged at intervals, two chain guiding rings are connected with two ends of the two guide rails (14), and the first surface (140) and the second surface (142) are surfaces of the two guide rails (14).

9. A chain conveyor according to claim 8, wherein, The application further comprises a lower supporting plate (141) arranged at an interval from the second surface (142) and below the second surface (142), the lower supporting plate comprises a third surface (143) arranged at an interval from the second surface (142), the second surface (142) is below the first surface (140), and the interval distance between the third surface (143) and the second surface (142) is greater than the diameter of the roller (170).

10. A station packer characterized in that, The application further relates to a chain conveying mechanism (1) comprising the chain conveying mechanism (1) according to any one of claims 1-9, and a plurality of bag clamping assemblies (2) for positioning packaging bags, wherein the plurality of bag clamping assemblies are arranged on the transmission chain (10) of the chain conveying mechanism (1) at intervals along the conveying direction of the chain conveying mechanism (1).

Images