Automatic packaging device for sliding bearings

Abstract

An automatic packaging device for sliding bearings includes a conveying mechanism, a bag supply unit, and a packaging unit. The conveying mechanism includes a push-up cylinder, and the bag supply unit includes a coil roller, a tensioning roller, a material guide assembly, and a coil traction mechanism. The material guide assembly includes a base plate, a fixed bracket, a coil guide frame, and a bearing guide. The base plate includes a base plate body, a feed through hole, and a feed notch. The bearing guide includes a connecting piece and a bearing guide tube, the connecting piece is used to make the bearing guide tube located in the feed through hole so as to receive the pushed-in bearing, and the bearing guide tube is arranged vertically below the transmission position of the push-up cylinder. The automatic packaging device for sliding bearings realizes the automatic packaging of bearings, reduces the workload of workers, reduces the work intensity, and improves the packaging efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of bearing production devices, in particular to an automatic packaging device for sliding bearings. Background Art

[0002] Bearings are essential products for the operation of rotating shafts. They are used in large quantities in the market and have high quality requirements. In order to effectively improve production efficiency and reduce production costs, it is an inevitable trend to take the path of automated processing. Therefore, solving the problem of automated packaging of bearings is a meaningful technological innovation.

[0003] At present, in order to ensure the quality of bearings during the production process, bearings are manually packaged after processing to reduce bumps during transportation. Since bearings come in various sizes, they need to be packaged in appropriate quantities according to their sizes to facilitate subsequent packing. In the current packaging process, the number of bearings needs to be counted during manual packaging and then rolled and packaged, which increases the labor intensity of workers and is not conducive to improving production efficiency. Summary of the invention

[0004] In view of this, the present invention provides an automatic packaging device for sliding bearings that can improve production efficiency to meet industrial needs.

[0005] An automatic packaging device for sliding bearings includes a conveying mechanism for transmitting bearings, a bag supply unit arranged on one side of the conveying mechanism and used to transmit packaging bag rolls, and a packaging unit arranged on one side of the conveying mechanism and arranged at the bottom of the bag supply unit. The conveying mechanism includes a push-up cylinder, and the bag supply unit includes a winding roller arranged on a mounting frame and used to mount the packaging bag roll, at least two tensioning rollers arranged on the mounting frame and located in the material discharge direction of the winding roller, a material guide assembly arranged on the mounting frame and located in the material discharge direction of the tensioning roller, and two roll traction mechanisms symmetrically arranged on the mounting frame and located in the material discharge direction of the material guide assembly. The material guide assembly includes a bottom plate arranged on the mounting frame, a fixed bracket arranged on the bottom plate, a roll guide frame arranged on the fixed bracket, and a bearing guide member arranged on the fixed bracket and penetrating the bottom plate. The bottom plate includes a bottom plate body arranged on the mounting frame, a feed through hole arranged on the bottom plate body, and a feeding notch arranged on the bottom plate body facing the conveying mechanism and connected to the feed through hole. The feeding notch is arranged in the ejecting direction of the ejection cylinder, so that the bearing on the conveying mechanism can pass through the feeding notch and enter the feed through hole. The fixing bracket is used to fix the coil guide frame on the bottom plate so that the coil guide frame is spaced from the bottom plate. The coil guide frame is used to prop up the rolled packaging bag and leave a notch. When the packaging bag from the coil guide frame enters the feed through hole, the flat-type packaging bag is curled into a barrel shape due to the effect of the small diameter end of the feed through hole. However, in order to feed the bearing into the rolled packaging bag, the semicircular coil guide frame props up the rolled packaging bag and leaves a notch to facilitate the bearing to be pushed in. The coil guide frame is arranged between the tensioning roller and the base plate, which is a semicircular ring, and the central axis of the semicircular ring is parallel to the arrangement direction of the coil guide frame and the base plate. The feed through hole is a conical through hole, and the large diameter end of the conical through hole faces the coil guide frame, and the small diameter end faces the packaging unit to curl the flat packaging bag into a barrel shape. The small and large diameter ends of the feed through hole are used to accommodate the packaging bag opened by the coil guide frame, and the small diameter end of the feed through hole is used to close the packaging bag and the packaging bag will be folded together under the guidance of the coil guide frame. The bearing guide member includes a connector fixedly connected to the fixed bracket and passing through the coil guide frame, and a bearing guide tube arranged at one end of the connector. The connector is used to make the bearing guide tube located in the feed through hole so as to receive the pushed-in bearing. The bearing guide tube is arranged vertically below the transmission position of the push-in cylinder. When the bearing is pushed over by the push-in cylinder, the bearing guide tube limits the placement direction of the bearing to facilitate the bearing to be pushed in.

[0006] Furthermore, the conveying mechanism also includes a conveying body, a baffle plate arranged at one end of the discharge port of the conveying body, and the ejection cylinder is arranged on the baffle plate.

[0007] Furthermore, the baffle includes a baffle body and a baffle opening arranged on a side of the baffle facing the bag supply unit.

[0008] Furthermore, the outer contour of the baffle is in an "L" shape, and the opening of the baffle faces the bag supply unit.

[0009] Furthermore, the coil guide frame is a semicircular ring, and the central angle of the semicircular ring is greater than 180 degrees, and the size of the notch of the semicircular ring is equivalent to the diameter of the bearing.

[0010] Furthermore, the central axis of the coil guide frame coincides with the central axis of the feed through hole.

[0011] Furthermore, the coil traction mechanism includes two coil clamping wheels symmetrically arranged on the mounting frame, and at least two traction mechanisms respectively arranged under the coil clamping wheels.

[0012] Furthermore, the packaging unit includes two sealing components symmetrically arranged at the bottom of the coil traction mechanism, each of the sealing components includes a lifting slide arranged on the mounting frame, and a side sealing mechanism and a bottom sealing and cutting mechanism arranged on the lifting slide in sequence, the pulleys in the two coil clamping wheels abut against each other, and a cutting knife is arranged on each bottom sealing and cutting mechanism.

[0013] Furthermore, an extension direction of the side sealing mechanism and an extension direction of the bottom sealing and cutting mechanism are perpendicular to each other.

[0014] Compared with the prior art, the automatic packaging device for sliding bearings provided by the present invention transmits the bearings to the bag supply unit and the packaging unit through the conveying mechanism to realize automatic packaging of the bearings. The coil roller in the bag supply unit is used to install the packaging bag coil, and the packaging bag coil is guided to move by the two tensioning rollers. The material guide assembly is used to form a pre-packaged material curled along the length direction from the flat packaging bag coil pulled out from the tensioning roller, and at the same time, the bearing is contained in the pre-packaged material to prepare for subsequent packaging by the packaging unit. The material guide assembly includes a bottom plate arranged on the mounting frame, a fixed bracket arranged on the bottom plate, a coil guide frame arranged on the fixed bracket, and two groups of bearing guides arranged on the fixed bracket and penetrated through the bottom plate. A feed through hole is arranged on the bottom plate body in the bottom plate, and the bottom plate body faces the feeding notch of the conveying mechanism and is connected to the feed through hole. The feeding notch is arranged in the feeding direction of the pushing cylinder in the conveying mechanism, so that under the guidance of the baffle and the pushing of the pushing cylinder, the bearing on the conveying mechanism can pass through the feeding notch and enter the feeding through hole. During the process of the packaging bag being transmitted through the material guide assembly, the coil guide frame is used to open the packaging bag, the feeding through hole curls the packaging bag into shape, and the bearing guide is used to guide the bearing entering the feeding through hole to be placed in a specified direction, wherein the bearing guide is arranged on the fixed bracket and is coaxially arranged with the coil guide frame and the feeding through hole, the feeding through hole is a tapered through hole, and the large diameter end of the tapered through hole faces the coil guide frame, and the small diameter end faces the packaging unit, when the packaging bag coming from the coil guide frame enters the feeding through hole, due to the effect of the small diameter end of the feeding through hole, the flat-type packaging bag is curled into a barrel shape, but in order to send the bearing into the curled packaging bag, the semicircular coil guide frame opens the curled packaging bag and leaves a gap to facilitate the bearing to be pushed in. Therefore, the gap of the semicircular coil guide frame also faces the conveying mechanism. At the same time, because the feed through hole is a frustum-shaped structure, the curled packaging bag can be opened by the coil guide frame to form a gap, so that the bearing can enter the curled packaging bag. It can be seen that the automatic packaging device for sliding bearings realizes the automatic packaging of bearings, reduces the workload of workers, reduces the work intensity, and improves the packaging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the automatic packaging device for sliding bearings provided by the present invention.

[0016] Figure 2 for Figure 1 Schematic diagram of the partial enlarged structure of the automatic packaging device for sliding bearings at point A.

[0017] Figure 3 for Figure 1 Schematic diagram of the structure in which the packaging unit is installed on the mounting frame.

[0018] Figure 4 for Figure 3 Schematic diagram of the local enlarged structure at B.

[0019] Figure 5 for Figure 1 Schematic diagram of the structure of the packaging unit in the automatic packaging device for sliding bearings.

[0020] Reference numerals: 1, bearing, 2, packaging bag coil, 10, conveying mechanism, 11, conveying body, 12, baffle, 121, baffle body, 122, baffle opening, 13. Push cylinder, 14. Discharge port, 20. Mounting frame, 30. Bag supply unit, 31. Tensioning roller, 32. Coil roller, 33. Material guide assembly, 331. Bottom plate, 3311. Bottom plate body, 3312. Feed through hole, 3313. Loading notch, 332. Fixed bracket, 333. Coil guide, 334. Bearing guide, 3341. Connecting piece, 3342. Bearing guide tube, 34. Coil traction mechanism, 341. Coil clamping wheel, 342. Traction mechanism, 3421. Traction wheel, 3422. Traction motor, 343. Elastic device, 40. Packaging unit, 41. Sealing assembly, 411. Lifting slide, 412. Side sealing mechanism, 413. Bottom sealing cutting mechanism, 414. Cutting knife. DETAILED DESCRIPTION

[0021] The specific embodiments of the present invention are further described in detail below. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0022] like Figures 1 to 5 As shown, it is a schematic diagram of the structure of the automatic packaging device for sliding bearings provided by the present invention. The automatic packaging device for sliding bearings includes a conveying mechanism 10 for conveying bearings 1, a bag supply unit 30 arranged on a mounting frame 20 and used for conveying a packaging bag roll 2, and a packaging unit 40 arranged at the bottom of the bag supply unit 20. The automatic packaging device for sliding bearings also includes some other functional modules, such as assembly components, electrical components, control modules, etc., which should be technologies well known to those skilled in the art and will not be described in detail one by one here.

[0023] The conveying mechanism 10 includes a conveying body 11 , a baffle 12 disposed at one end of a material discharge port of the conveying body 11 , and an ejection cylinder 13 disposed on the baffle 12 .

[0024] The conveying body 11 may include a loading tray (not shown) and a conveying device (not shown) disposed on one side of the loading tray. The loading tray and the conveying device are prior art and will not be described in detail herein. The loading tray is used to place unpackaged bearings 1. The conveyor belt is used to convey bearings 1 of different specifications. During use, bearings 1 of different specifications are manually placed on the conveying body 11 in sequence, so that the bearings 1 can be transferred to the mounting frame 20 in sequence. In this embodiment, the conveying device is a conveyor belt, through which the bearings 1 are conveyed to the bag supply unit 30 and the packaging unit 40 to achieve the packaging of the bearings 1.

[0025] like Figure 2 As shown, the baffle 12 includes a baffle body 121 and a baffle opening 122 arranged on the side of the baffle 12 facing the bag supply unit 30. The baffle 12 is arranged at one end of the discharge port 14 of the conveying body 11, and the baffle body 121 limits the position of the bearing 1 at the discharge port of the conveying body 11. In this embodiment, the outer contour of the baffle 12 is "L"-shaped, and the baffle opening 122 faces the bag supply unit 30, so that the baffle 12 can limit the discharge position of the bearing 1 on the conveying body 11, and the bearing 1 can be pushed to the bag supply unit 30 through the baffle opening 122 by the push cylinder 13 to package the bearing 1.

[0026] The push-up cylinder 13 is arranged on one side of the baffle 12. The moving direction of the push-up cylinder 13 is perpendicular to the transmission direction of the conveying body 11, and one end of the push-up cylinder 13 corresponds to the opening of the baffle 12, so that the push-up cylinder 13 can push the bearing 1 on the conveying body 11 and pass through the opening of the baffle 12, and push the bearing 1 to the processing position between the bag supply unit 30 and the packaging unit 40. The push-up cylinder 13 is a device that converts the pressure energy of compressed air into mechanical energy, which is a prior art and will not be described in detail here.

[0027] The mounting frame 20 is used to mount the bag supply unit 30 and the packaging unit 40, and the bag supply unit 30 and the packaging unit 40 form a whole. The mounting frame 20 is arranged at the discharge port of the conveying body 11. When the conveying mechanism 10 transfers the bearing 1 to be packaged to the discharge port of the conveying body 11, the bearing 1 to be packaged is packaged by the bag supply unit 30 and the packaging unit 40. The mounting frame 20 itself is a prior art, and its structure and assembly form can be designed according to the needs of the bag supply unit 30 and the packaging unit 40, so it will not be described here.

[0028] Please also read Figures 1 to 4 The bag supply unit 30 includes a winding roller 31 arranged on the mounting frame 20 and used to mount the packaging bag roll 2, at least two tensioning rollers 32 arranged on the mounting frame 20 and located in the discharge direction of the winding roller 31, a material guide component 33 arranged on the mounting frame 20 and located in the discharge direction of the tensioning roller 32, and two roll traction mechanisms 34 symmetrically arranged on the mounting frame 20 and located in the discharge direction of the material guide component 33.

[0029] The coiling roller 31 is used to install the packaging bag coil 2, that is, a roll of packaging bag is put on the coiling roller 31 in the form of a coil, and when the coiling roller 31 rotates, the material can be unwound. Therefore, it can be imagined that the coiling roller 31 is driven by a driving device.

[0030] The tension roller 32 is used to guide the movement of the packaging bag coil 2 and provide a certain tension force. Because the unloading speed of the coil roller 32 is usually certain, and the packaging unit 40 may have errors, so that the packaging bag cannot be processed in time, and it is also necessary to make the packaging bag flat and wrinkle-free after packaging to achieve an aesthetic effect. Therefore, the tension roller 32 provides a certain damping force, that is, it rotates under the traction of the packaging unit 40. As for how the tension roller 32 provides damping, it should be a prior art itself and will not be repeated here.

[0031] The material guide assembly 33 is used to form a pre-packaged material curled along the length direction from the flat packaging bag roll 2 pulled out from the tensioning roller 32, and at the same time accommodate the bearing 1 in the pre-packaged material to prepare for subsequent packaging by the packaging unit 40. Figure 4 The material guide assembly 33 includes a base plate 331 arranged on the mounting frame 20, a fixed bracket 332 arranged on the base plate 331, a coil guide frame 333 arranged on the fixed bracket 332, and a bearing guide member 334 arranged on the fixed bracket 332 and passing through the base plate 331.

[0032] The bottom plate 331 includes a bottom plate body 3311 disposed on the mounting frame 20, a feed through hole 3312 disposed on the bottom plate body 3311, and a feed notch 3313 disposed on the bottom plate body 3311 facing the conveying mechanism 10 and connected to the feed through hole 3312. The bottom plate body 3311 is mounted on the mounting frame 20, and is used to set the feed through hole 3312 and the feed notch 3313. The feed through hole 3312 is a tapered through hole, and the large diameter end of the tapered through hole faces the coil guide frame 333, and the small diameter end faces the packaging unit 40. The feed notch 3313 is disposed in the ejection direction of the ejection cylinder 13, so that under the guidance of the baffle 12 and the ejection of the ejection cylinder 13, the bearing 1 on the conveying mechanism 10 can pass through the feed notch 3313 and enter the feed through hole 3312.

[0033] In order to explain in detail how the flat-type packaging bag from the tensioning roller 32 becomes a pre-packaged bag containing the bearing 1, the coil guide frame 333 is first described. The coil guide frame 333 is arranged between the tensioning roller 32 and the bottom plate 331. It is a semicircular ring, and the central axis of the semicircular ring is parallel to the arrangement direction of the coil guide frame 333 and the bottom plate 331. Preferably, the central axis of the coil guide frame 333 coincides with the central axis of the feed through hole 3312. The main function of the coil guide frame 333 is to open the packaging bag closed by the small diameter end of the feed through hole 3312. Therefore, the central angle of the semicircular ring should be greater than 180 degrees. Preferably, the size of the semicircular notch is equivalent to the diameter of the bearing 1. The inner diameter of the semicircular coil guide frame 333 can be set according to actual needs, but it must be larger than the diameter of the bearing 1. The large diameter end of the feed hole 3312 is used to accommodate the packaging bag held open by the coil guide frame 333, while the small diameter end of the feed hole 3312 is used to close the packaging bag. At the same time, under the guidance of the coil guide frame 333, the packaging bag will be folded together to facilitate the subsequent packaging unit 40 to perform edge sealing and sealing.

[0034] When the packaging bag from the coil guide frame 333 enters the feed through hole 3312, the flat packaging bag is curled into a barrel shape due to the effect of the small diameter end of the feed through hole 3312. However, in order to feed the bearing 1 into the curled packaging bag, the semicircular coil guide frame 333 opens the curled packaging bag and leaves a gap to facilitate the bearing 1 to be pushed in. Therefore, the gap of the semicircular coil guide frame 333 also faces the conveying mechanism 10. At the same time, since the feed through hole 3312 is a frustum-shaped structure, the curled packaging bag can be opened by the coil guide frame 333 and a gap is formed.

[0035] The fixed bracket 332 is used to fix the coil guide frame 333 on the bottom plate 331, so that the coil guide frame 333 is spaced apart from the bottom plate 331, thereby forming a gap for the bearing 1 to be pushed into the above-mentioned feeding gap 3313 and enter the curled packaging bag. Therefore, it is advisable that the fixed bracket 332 is set so as not to interfere with the movement of the bearing 1, and no further details are given here. The bearing guide 334 is set on the fixed bracket 332 and is coaxially arranged with the coil guide frame 333 and the feed through hole 3312. The bearing guide 334 is used to place the entering bearing in a specified direction. In this embodiment, the central axis of the placed bearing 1 is parallel to or coincides with the central axis of the feed through hole 3312. The bearing guide 334 includes a connector 3341 fixedly connected to the fixed bracket 332 and inserted into the coil guide frame 333, and a bearing guide tube 3342 disposed at one end of the connector 3341. The connector 3341 is used to position the bearing guide tube 3342 in the feed through hole 3312, so as to facilitate receiving the pushed-in bearing 1. Therefore, the bearing guide tube 3342 is disposed vertically below the transmission position of the push-out cylinder 13. When the bearing 1 is pushed over by the push-out cylinder 13, it can enter the bearing guide tube 3342, and the bearing guide tube 3342 limits the placement direction of the bearing 1, even if the bearing 1 is placed flat in the packaging bag.

[0036] The coil traction mechanism 34 includes two coil clamping wheels 341 symmetrically arranged on the mounting frame 20 , and at least two traction mechanisms 342 respectively arranged under the coil clamping wheels 341 .

[0037] The two coil clamping wheels 341 and the two traction mechanisms 342 can clamp one side of the packaging bag, wherein the traction mechanism 342 drives the packaging bag to move toward the packaging unit 40. The coil clamping wheels 341 and the traction mechanism 342 are both prior art, wherein in this embodiment, the traction mechanism 342 includes a pair of traction wheels 3421 disposed on the mounting frame 20, and at least one of the traction wheels 3421 is provided with a traction motor 3422, and the traction motor 3422 drives the traction wheel 3421 to rotate, thereby realizing that the traction mechanism 342 drives the packaging bag to be transmitted downward. In addition, an elastic device 343 is provided between the coil clamping wheels 341, the traction mechanism 342 and the mounting frame 20, so that the two coil clamping wheels 341 and the two traction mechanisms 342 are brought close to each other, thereby clamping and transmitting the packaging bag.

[0038] The packaging unit 40 includes two sealing assemblies 41 symmetrically arranged at the bottom of the coil traction mechanism 34. Each of the sealing assemblies 41 includes a lifting slide 411 arranged on the mounting frame 20, and a side sealing mechanism 412 and a bottom sealing cutting mechanism 413 arranged on the lifting slide 411 in sequence.

[0039] The lifting slide 411 is a mechanical component for realizing linear motion, which is composed of a guide rail, a slider, and a driving device. The side sealing mechanism 412 and the bottom sealing and cutting mechanism 413 are arranged on the lifting slide 411, so that the lifting slide 411 can drive the side sealing mechanism 412 and the bottom sealing and cutting mechanism 413 to move up and down, so as to realize the side sealing and bottom sealing of the packaging bag. The driving device in the lifting slide 411 drives the slider to move smoothly along the linear path of the guide rail. The lifting slide 411 is a prior art and will not be described in detail here.

[0040] The extension direction of the side sealing mechanism 412 is perpendicular to the extension direction of the bottom sealing and cutting mechanism 413, that is, the side sealing mechanism 412 and the bottom sealing and cutting mechanism 413 can seal the packaging bag from different directions. In this embodiment, the two side sealing mechanisms 412 are used to seal the side edges of the packaging bag, and the two bottom sealing and cutting mechanisms 413 are used to seal the bottom edges of the packaging bag. The side sealing mechanisms 412 and the bottom sealing and cutting mechanisms 413 are devices that can heat plastic film or other thermoplastic materials to a molten state and then apply pressure to make them bond. In addition, each of the bottom sealing and cutting mechanisms 413 is provided with a cutting knife 414. When the two bottom sealing and cutting mechanisms 413 move toward each other, the cutting knives 414 on the bottom sealing and cutting mechanisms 413 move toward each other synchronously, and the cutting knives 414 cut the thermoformed packaging bag. The side sealing mechanism 412, the bottom sealing and cutting mechanism 413, and the cutting knives 414 are all existing technologies and will not be described in detail herein.

[0041] When the automatic packaging device for sliding bearings starts the processing process, the packaging bag roll 2 is manually assembled onto the roll roller 32, and a portion of the packaging bag roll 2 is pulled out and flattened between the tension rollers 31. The flattened packaging bag roll 2 is then passed through the roll guide frame 333 to form an unsealed packaging bag and the packaging bag roll 2 is bent and fits the outer diameter of the bearing 1 as much as possible. Finally, when it reaches the roll clamping wheel 341, the side of the packaging bag is clamped, and the bottom sealing cutting mechanism 413 seals the bottom edge of the packaging bag roll 2. The bearing 1 to be packaged is manually placed axially vertically on the conveyor body 11, and then the bearing 1 is conveyed to one end of the baffle 12 through the conveyor body 11. After the bearing 1 is conveyed to the right position, the push cylinder 13 receives a signal and starts to work, pushing the bearing 1 to the feed through hole 3312 of the bottom plate 331, and the bearing guide 334 introduces the bearing 1 into the unsealed packaging bag.

[0042] At the same time, the traction mechanism 342 controls the coil clamping wheel 341 to rotate, and the clamped unsealed packaging bag is conveyed downward, and the clamped packaging bag drives the tensioning roller 31 and the coiling roller 32 of the bag supply unit 30 through the coil traction mechanism 34, completing the process of loading the packaging bag coil 2. At this time, the lifting slide 411 controls the side sealing mechanism 412 to move to the specified position, and the two side sealing mechanisms 412 move to both sides of the packaging bag and the side sealing mechanisms 412 completely seal the sides of the packaging bag, and the packaging bag with side sealing is transported downward continuously.

[0043] When the side-sealed packaging bag is transported downward, the next bearing 1 is transported to the side of the baffle 12, and is pushed into the feed hole 3312 of the bottom plate 331 by the push cylinder 13, and the bearing 1 is introduced into the packaging bag by the bearing guide 334, and the bagging process of the bearing 1 is circulated in this way.

[0044] The packaging bag with completed side seal is transported to the bottom seal cutting mechanism 413 to seal the bottom seal of the packaging bag, and is packaged according to the required bearing packaging quantity. After the packaging quantity and position are transported to the designated position, the bottom seal cutting mechanism 413 seals the upper seal of the previous packaging bag and the lower seal of the next packaging bag, and the cutting knife 414 cuts the upper and lower packaging bags connected to each other to complete the automatic packaging of the bearing 1. The entire machine then performs cyclic processing in this order.

[0045] Compared with the prior art, the automatic packaging device for sliding bearings provided by the present invention transmits the bearing 1 to the bag supply unit 30 and the packaging unit 40 through the conveying mechanism 10, so as to realize the automatic packaging of the bearing 1. The coiling roller 31 in the bag supply unit 30 is used to install the packaging bag coil 2, and the packaging bag coil 2 is guided to move by the two tensioning rollers 32. The material guide assembly 33 is used to form a pre-packaged material curled along the length direction from the flat packaging bag coil 2 pulled out from the tensioning roller 32, and at the same time, the bearing 1 is contained in the pre-packaged material, so as to prepare for the subsequent packaging by the packaging unit 40. The material guide assembly 33 includes a bottom plate 331 arranged on the mounting frame 20, a fixed bracket 332 arranged on the bottom plate 331, a coil guide frame 333 arranged on the fixed bracket 332, and two groups of bearing guides 334 arranged on the fixed bracket 332 and penetrating the bottom plate 331. A feed hole 3312 is provided on the bottom plate body 3311 in the bottom plate 331, and the bottom plate body 3311 faces one side of the conveying mechanism 10 and is connected to a feed notch 3313 of the feed hole 3312. The feed notch 3313 is provided in the ejection direction of the ejection cylinder 13 in the conveying mechanism 10, so that the bearing 1 on the conveying mechanism 10 can pass through the feed notch 3313 and enter the feed hole 3312 under the guidance of the baffle 12 and the ejection of the ejection cylinder 13. When the packaging bag is being transported through the material guide assembly 33, the coil guide frame 333 is used to open the packaging bag, and the feeding through hole 3312 curls the packaging bag into shape. The bearing guide 334 is used to guide the bearing entering the feeding through hole 3312 to be placed in a specified direction, wherein the bearing guide 334 is arranged on the fixed bracket 332 and is coaxially arranged with the coil guide frame 333 and the feeding through hole 3312. The feeding through hole 3312 is a conical through hole, and The large diameter end of the tapered through hole faces the coil guide frame 333, and the small diameter end faces the packaging unit 40. When the packaging bag from the coil guide frame 333 enters the feed through hole 3312, the small diameter end of the feed through hole 3312 causes the flat packaging bag to curl into a barrel shape, which is convenient for feeding the bearing 1 into the curled packaging bag. The semicircular coil guide frame 333 opens the curled packaging bag and leaves a gap to facilitate the bearing 1 to be pushed in. Therefore, the gap of the semicircular coil guide frame 333 also faces the conveying mechanism 10. At the same time, since the feed through hole 3312 is a frustum-shaped structure, the curled packaging bag can be opened by the coil guide frame 333 and a gap is formed to facilitate the bearing to enter the curled packaging bag. It can be seen from this that the automatic packaging device for sliding bearings realizes the automatic packaging of bearings, reduces the workload of workers, reduces the work intensity, and improves packaging efficiency.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention is included in the scope of the claims of the present invention.

Claims

1. An automatic packaging device for sliding bearings, characterized in that: The automatic packaging device for sliding bearings includes a conveying mechanism for transmitting bearings, a bag supply unit arranged on one side of the conveying mechanism and used to transmit packaging bag rolls, and a packaging unit arranged on one side of the conveying mechanism and arranged at the bottom of the bag supply unit, the conveying mechanism includes a push-up cylinder, the bag supply unit includes a winding roller arranged on a mounting frame and used to mount the packaging bag roll, at least two tensioning rollers arranged on the mounting frame and located in the discharge direction of the winding roller, a material guide component arranged on the mounting frame and located in the discharge direction of the tensioning roller, and two coil traction mechanisms symmetrically arranged on the mounting frame and located in the discharge direction of the material guide component, the material guide component includes a winding roller arranged on a mounting frame and located in the discharge direction of the tensioning roller, The bottom plate on the mounting frame, a fixed bracket arranged on the bottom plate, a coil guide frame arranged on the fixed bracket, and a bearing guide member arranged on the fixed bracket and passing through the bottom plate, the bottom plate comprising a bottom plate body arranged on the mounting frame, a feed through hole arranged on the bottom plate body, and a loading notch arranged on the bottom plate body facing the side of the conveying mechanism and connected to the feed through hole, the loading notch being arranged in the ejecting direction of the ejecting cylinder so that the bearing on the conveying mechanism can pass through the loading notch and enter the feed through hole, the fixed bracket is used to fix the coil guide frame on the bottom plate so that the coil guide frame is spaced apart from the bottom plate, and the The coil guide frame is used to prop open the curled packaging bag and leave a gap. When the packaging bag coming from the coil guide frame enters the feeding through hole, the flat packaging bag is curled into a barrel shape due to the action of the small diameter end of the feeding through hole. However, in order to feed the bearing into the curled packaging bag, the semicircular coil guide frame props up the curled packaging bag and leaves a gap to facilitate the bearing to be pushed in. The coil guide frame is arranged between the tensioning roller and the bottom plate. It is a semicircular ring, and the central axis of the semicircular ring is parallel to the arrangement direction of the coil guide frame and the bottom plate. The feeding through hole is a conical through hole, and the large diameter end of the conical through hole faces the coil guide frame, and the small diameter end faces the packaging unit so that the flat The type packaging bag is curled into a barrel shape, the large diameter end of the feed through hole is used to adapt to the packaging bag held open by the coil guide frame, and the small diameter end of the feed through hole is used to close the packaging bag. At the same time, the packaging bag will be folded together under the guidance of the coil guide frame. The bearing guide member includes a connecting member fixedly connected to the fixed bracket and passed through the coil guide frame, and a bearing guide tube arranged at one end of the connecting member. The connecting member is used to make the bearing guide tube located in the feed through hole so as to receive the bearing pushed in. The bearing guide tube is arranged vertically below the transmission position of the pushing cylinder. When the bearing is pushed over by the pushing cylinder, the bearing guide tube limits the placement direction of the bearing to facilitate the bearing to be pushed in.

2. The automatic packaging device for sliding bearings according to claim 1, characterized in that: The conveying mechanism also includes a conveying body, a baffle plate arranged at one end of the discharge port of the conveying body, and the ejection cylinder is arranged on the baffle plate.

3. The automatic packaging device for sliding bearings according to claim 2, characterized in that: The baffle includes a baffle body and a baffle opening arranged on a side of the baffle facing the bag supply unit.

4. The automatic packaging device for sliding bearings according to claim 3, characterized in that: The outer contour of the baffle is in an "L" shape, and the opening of the baffle faces the bag supply unit.

5. The automatic packaging device for sliding bearings according to claim 1, characterized in that: The central angle of the semicircular ring is greater than 180 degrees, and the size of the notch of the semicircular ring is equivalent to the diameter of the bearing.

6. The automatic packaging device for sliding bearings according to claim 4, characterized in that: The central axis of the coil guide frame coincides with the central axis of the feed through hole.

7. The automatic packaging device for sliding bearings according to claim 1, characterized in that: The coil traction mechanism comprises two coil clamping wheels symmetrically arranged on the mounting frame, and at least two traction mechanisms respectively arranged under the coil clamping wheels.

8. The automatic packaging device for sliding bearings according to claim 7, characterized in that: The packaging unit includes two sealing components symmetrically arranged at the bottom of the coil traction mechanism, each of the sealing components includes a lifting slide arranged on the mounting frame, and a side sealing mechanism and a bottom sealing and cutting mechanism arranged on the lifting slide in sequence, the pulleys in the two coil clamping wheels abut against each other, and a cutting knife is arranged on each bottom sealing and cutting mechanism.

9. The automatic packaging device for sliding bearings according to claim 8, characterized in that: The extending direction of the side sealing mechanism and the extending direction of the bottom sealing cutting mechanism are perpendicular to each other.

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