A feeding and discharging mechanism for a rotary production line for producing soft abrasive discs

Abstract

The present invention discloses a feeding and discharging mechanism for a rotary production line for producing soft abrasive sheets, comprising a main machine, a feeding mechanism arranged on the feeding side of the main machine and a discharging mechanism arranged on the discharging side of the main machine, the feeding mechanism comprising a track trolley arranged on the feeding side of the main machine, the track trolley being provided with a feeding propulsion cylinder and a discharging propulsion cylinder; the discharging mechanism comprising a track trolley arranged on the discharging side of the main machine; when any main machine needs to request materials, the track trolley of the feeding mechanism moves to the feeding stop position directly in front of the corresponding main machine position, and then the feeding propulsion cylinder on the feeding mechanism pushes the processed items from the feeding mechanism to the corresponding main machine; when any main machine needs to discharging materials after processing, the feeding mechanism will move to the feeding stop position directly in front of the corresponding main machine position, and the discharging mechanism will also move to the discharging stop position directly behind the corresponding main machine position. The present invention can improve the feeding and discharging efficiency, thereby improving the production efficiency of soft abrasive sheets.

Description

Technical Field

[0001] The invention relates to the technical field of feeding and discharging materials to a main machine, and in particular to a feeding and discharging mechanism of a rotary production line for producing soft abrasive sheets. Background Art

[0002] The main component of the resin soft grinding disc is a diamond grinding and polishing tool with epoxy resin or phenolic resin as the main binder. It is used for special-shaped processing of stone, ceramics, floor tiles and other materials. It is suitable for stone polishing, line chamfering, curved plates and special-shaped stone processing. It can also be used for special-shaped processing, repair and renovation of marble, concrete, cement floor, terrazzo, microcrystalline glass, artificial stone, floor tiles, glazed tiles, and vitrified tiles.

[0003] At present, the production steps of resin soft abrasive discs are roughly divided into: manually taking powder from the material basin with a material spoon, pouring it into the weighing box of the electronic scale, weighing the required weight of the powder, pouring the powder into the mold, manually flattening the powder with a hanging plate, and then manually putting the mold into a single vulcanizer for hot pressing. After the molding is completed, the mold is manually taken out of the vulcanizer and placed in the mold unloading press to unload the mold, and then the mold is reassembled and weighed again, and this cycle is repeated.

[0004] The existing production line for producing soft resin abrasive discs has the following defects: 1. In this process, material collection, weighing, spreading, transporting the mold into and out of the press, and unloading the mold are all done manually, with high labor intensity and low labor efficiency. In the current labor shortage in society and the background of the country advocating Industry 2025, highly automated and intelligent equipment is in demand by society. 2. Since the thickness of the soft resin abrasive disc is thin, its thickness after molding is 2.5mm, so the precision requirement for spreading the material is particularly high. If the material is not spread evenly, air holes will appear in places with less powder, resulting in waste. At the site of each soft abrasive disc manufacturer, products often have air holes, resulting in a certain waste rate. Summary of the invention

[0005] The object of the present invention is to provide a feeding and discharging mechanism for a rotary production line for producing soft abrasive sheets, which can improve the feeding and discharging efficiency and thus improve the production efficiency of the soft abrasive sheets.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: a feeding and discharging mechanism of a rotary production line for producing soft abrasive sheets, comprising a main machine, a feeding mechanism arranged on the feeding side of the main machine and a discharging mechanism arranged on the discharging side of the main machine, the feeding mechanism comprising a rail trolley arranged on the feeding side of the main machine, the rail trolley being provided with a feeding propulsion cylinder and a discharging propulsion cylinder;

[0007] The discharging mechanism includes a track trolley arranged on the discharging side of the main machine;

[0008] When any host needs to receive materials, the track trolley of the feeding mechanism moves to the feeding stop position directly in front of the corresponding host position, and then the feeding push cylinder on the feeding mechanism pushes the processed items from the feeding mechanism to the corresponding host;

[0009] When any host finishes processing and needs to discharge the material, the feeding mechanism will move to the feeding stop position directly in front of the corresponding host position, and the discharging mechanism will also move to the discharging stop position directly behind the corresponding host position; when the feeding mechanism and the discharging mechanism have moved to their positions, the discharging push cylinder on the feeding mechanism will move forward to push the processed items from the host to the discharging mechanism; then the discharging mechanism will move to the next workstation.

[0010] The rail trolley comprises a trolley plate, wheels mounted on the trolley plate, guide rails, racks, lower wheels, a gear drive motor and a gear arranged at the end of a rotating shaft of the gear drive motor;

[0011] The guide rail is arranged on the feeding side or the discharging side of the main machine, and the trolley plate is arranged correspondingly beside the guide rail, and cooperates with the corresponding guide rail through the wheels;

[0012] A rack parallel to the guide rail is provided beside the guide rail, a gear drive motor is installed on the trolley plate, and a gear at the end of the rotating shaft of the gear drive motor is meshed with the rack.

[0013] The wheels include an upper wheel and a lower wheel, which are symmetrically arranged with the guide rail as the center line, and the upper wheel abuts and guides the inner side of the guide rail, and the lower wheel abuts and guides the outer side of the guide rail to form an anti-rollover structure.

[0014] The main machines are arranged in a row to form a main machine row, and the feed ports of the main machines are all facing one side, and the discharge ports of the main machines are all facing the other side.

[0015] The feeding mechanism and the discharging mechanism are respectively arranged on both sides of the main machine row.

[0016] The feed propulsion cylinder is a gas cylinder.

[0017] The discharging propulsion cylinder is an oil cylinder.

[0018] The beneficial effects of the feeding and discharging mechanism of the rotary production line for producing soft abrasive sheets of the present invention are:

[0019] The feeding mechanism of the present invention comprises a track trolley arranged on the feeding side of the main machine mechanism, and the track trolley is provided with a feeding propulsion cylinder and a discharging propulsion cylinder; the discharging mechanism comprises a track trolley arranged on the discharging side of the main machine mechanism;

[0020] The above-mentioned rail trolley includes a trolley plate, wheels installed on the trolley plate, guide rails, racks, lower wheels, a gear drive motor and a gear arranged at the end of the rotating shaft of the gear drive motor; the guide rails are arranged on the discharge side or the discharge side of the main machine mechanism, and the trolley plate is correspondingly arranged beside the guide rails, and is guided and matched with the corresponding guide rails through the wheels; a rack parallel to the guide rail is provided beside the guide rail, the gear drive motor is installed on the trolley plate, and the gear at the end of the rotating shaft of the gear drive motor is meshed with the rack.

[0021] When the rail trolley moves along the guide, the gear drive motor drags the gear to move left and right on the rack. The gear drive motor rotates forward to move the rail trolley forward, and the gear drive motor rotates reversely to move the rail trolley backward.

[0022] The rail trolley of the feeding mechanism is equipped with a feeding push cylinder and a discharging push cylinder. The processed objects enter the main machine, and the processed objects are placed on the trolley plate of the rail trolley. The feeding push cylinder moves forward to push the processed objects into the main machine; the discharging push cylinder moves forward to push the mold out of the main machine.

[0023] The discharge propulsion cylinder is an oil cylinder with large thrust and no retraction, which is convenient for pushing out the processed items in the main machine.

[0024] And because there are multiple main machines and they are arranged in a row, the present invention only needs one set of feeding mechanism and discharging mechanism to complete the feeding and discharging of multiple main machines, and it can realize that the rail trolley moves forward once to complete the feeding and discharging actions at the same time. When the main machine has material, first the discharging propulsion cylinder of the feeding mechanism moves forward to the front of the main machine to discharge the material, and then the feeding mechanism moves forward again to allow the feeding propulsion cylinder to be located in front of the main machine. The feeding propulsion cylinder moves forward to push the processed items on the trolley plate of the feeding mechanism into the main machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a top view of the overall assembly of an embodiment of the present invention;

[0026] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the material unloading mechanism in the middle scale;

[0027] Figure 3 yes Figure 2 A magnified view of the mid-scale hopper;

[0028] Figure 4 yes Figure 1 A three-dimensional schematic diagram of the middle material spreading mechanism;

[0029] Figure 5 yes Figure 4 A cross-sectional view of

[0030] Figure 6 This is a front view of a scraper for rough spreading;

[0031] Figure 7 yes Figure 6 Side view of

[0032] Figure 8 This is the front view of the scraper for fine spreading;

[0033] Fig. 9 yes Figure 8 Side view

[0034] Fig.10 yes Figure 1 A cross-sectional view of the middle mold;

[0035] Fig.11 yes Figure 1 A three-dimensional schematic diagram of the middle feeding mechanism;

[0036] Fig.12 yes Fig.11 A cross-sectional view of the mid-track trolley;

[0037] Fig.13 Schematic diagram of preheating start-up process according to an embodiment of the present invention

[0038] Fig.14 A schematic diagram of the normal operation and sequential shutdown process of an embodiment of the present invention. DETAILED DESCRIPTION

[0039] The specific implementation modes of the present invention are described in detail below with reference to the accompanying drawings.

[0040] like Figures 1 to 12 As shown, a rotary production line for soft abrasive sheets of this embodiment includes a weighing and spreading platform, a feeding mechanism 9, a host mechanism, a discharging mechanism 15, a mold unloading press mechanism, a control module 20 (the control module is used to control the operation of the weighing and spreading platform, the feeding mechanism, the host mechanism, the discharging mechanism and the mold unloading press mechanism) and a hydraulic station 21. The feeding and discharging mechanism of the rotary production line for producing soft abrasive sheets enables the mold to perform a rotary flow operation, realizing the automated operation of taking materials, weighing materials, spreading materials, transporting the mold into the press, transporting it out of the press, and unloading the mold.

[0041] The weighing and spreading platform includes two rows of mold stations arranged longitudinally on the platform, and the two rows of mold stations are an empty mold station row and an operating mold station row. Reference numeral 19 indicates a mold in the empty mold station row. The operating mold station row is provided with a weighing and pouring mechanism 2 and a spreading mechanism from the first position to the last position. The spreading mechanism can be provided with multiple levels from the first position to the last position of the operating mold station row. In this embodiment, it is provided with two levels, namely a rough spreading mechanism 4 and a fine spreading mechanism 5.

[0042] A horizontal push cylinder 1 is arranged beside the last position of the empty mold station array, and the horizontal push cylinder 1 pushes the mold at the last position of the empty mold station array to the working mold station array;

[0043] A longitudinal push cylinder 3 is arranged beside the first position of the working mold station, and the longitudinal push cylinder 3 pushes the mold of the working mold station forward longitudinally, so that the mold is processed by the weighing and unloading mechanism 2 and the spreading mechanism in turn to complete the unloading;

[0044] A horizontal push two cylinders 6 are arranged beside the last position of the working mold station, and the horizontal push two cylinders 6 push the mold at the last position of the mold station to the feeding mechanism 9;

[0045] The host mechanism includes at least one host, and the host adopts a common vulcanizing machine three-beam four-column belt heating structure. In this embodiment, five hosts 10, 11, 12, 13, 14 are arranged in rows and run in parallel, but the number of hosts is not limited to five, and in theory, unlimited hosts can work simultaneously.

[0046] The feeding mechanism 9 delivers the mold to the corresponding main machine, and the discharging mechanism 15 delivers the mold processed by the main machine to the mold unloading press mechanism, and the mold unloaded by the mold unloading press mechanism is delivered to the empty mold station array.

[0047] like Figure 1 , Figure 2 and Figure 3 As shown, the weighing and unloading mechanism includes a screw scale 21, an electronic scale 22, a weighing hopper 23 and a unloading control device.

[0048] The screw scale 21 is used to feed materials into the weighing hopper 23; the electronic scale 22 is arranged on the weighing and spreading platform through the electronic scale bracket, and is located beside the working mold station array, the weighing hopper 23 is installed on the electronic scale 22, and the electronic scale 22 feeds back the weighed material weight to the screw scale 21.

[0049] The screw scale 21 controls the screw rotation speed in the screw according to the set powder weight. The screw rotates so that the powder is put into the weighing hopper 23 through the discharge port of the screw scale 21. The electronic scale 22 feeds the weighed material weight back to the screw scale. When the powder weight is close to the set weight, the screw rotation speed slows down. When the weight reaches the set weight, the screw stops rotating and the feeding system stops.

[0050] The weighing hopper 23 is a two-half structure, which includes a hopper body structure formed by splicing two half hoppers, with a small lower part and a closed splicing, and a large upper part and an open mouth. The two half hoppers are partially overlapped at the splicing part to ensure that there is no leakage at the splicing part. The upper end of the weighing hopper 23 is provided with a hopper support shaft 24 that passes through horizontally, and the two half hoppers are respectively rotatably connected to the hopper support shaft 24; the two half hoppers are in a two-half closed state under the natural state of gravity.

[0051] In this embodiment, the weighing hopper 23 is connected to the weighing part of the electronic scale 22 via a transverse connecting frame. The transverse connecting frame is located at one end of the weighing hopper 23 and is set as a U-shaped structure. Both ends of the hopper support shaft 24 are connected to the U-shaped structure.

[0052] The lower halves of the two half hoppers are fixed with a hopper dumping block 25 protruding from the hopper body. The two hopper dumping blocks 25 are arranged opposite to each other and a dumping opening and closing control area of ​​the weighing hopper 23 is formed therebetween.

[0053] The material dumping control device includes a material dumping swing cylinder 27 and a material dumping swing cylinder shift block 26 arranged at the movable end of the material dumping swing cylinder 27. The material dumping swing cylinder 27 is fixed on the electronic scale bracket through the material dumping swing cylinder mounting frame. The material dumping swing cylinder shift block 26 is located in the material dumping opening and closing control area. The material dumping swing cylinder shift block 26 is driven by the material dumping swing cylinder 27 to swing.

[0054] When the weight of the powder in the weighing hopper 23 reaches the set weight, the feeding system stops, and the dumping system starts to work, and the dumping swing cylinder 27 drives the dumping swing cylinder shift block 26 to swing. The dumping swing cylinder shift block 26 has two swinging states: horizontal and vertical. When the dumping swing cylinder shift block 26 is in vertical state, the dumping swing cylinder shift block 26 does not contact the dumping block 25 of the hopper on both sides, and the two half buckets of the weighing hopper 23 are in a two-half closed state under the natural state of gravity.

[0055] When the material-discharging swing cylinder shift block 26 changes from vertical to horizontal, it shifts the hopper material-discharging stopper 25 to open, thereby driving the two half hoppers to separate, so that the lower port of the weighing hopper 23 is opened, and the material powder is put into the mold through the lower opening; when the material-discharging swing cylinder shift block 26 changes from horizontal to vertical, the two half hoppers of the weighing hopper 23 return to the two-half closed state under the action of gravity.

[0056] The use of this weighing and pouring method can ensure the accuracy of feeding and facilitate the realization of high-automation and high-intelligent control.

[0057] like Figure 1 , Figure 4 and Figure 5 As shown, the material spreading mechanism includes at least one material spreading unit, and the material spreading unit is composed of a rotating disk 41, a scraper plate 35 and a scraper lifting structure;

[0058] The turntable 41 is used to place the mold, and the turntable 41 is installed on the material weighing and spreading platform, and a turntable speed regulating motor 42 is connected to the bottom of the turntable 41 to drive the turntable 41 to rotate;

[0059] The scraper plate 35 is located above the rotary disk 41 and connected to the scraper lifting structure, so that the scraper plate 35 rises or falls under the action of the scraper lifting structure.

[0060] When the material needs to be spread, the turntable 41 drives the mold to rotate, and the scraper lifting structure drives the scraper plate 35 to descend to a fixed depth in the mold. After reaching the depth, the scraper plate slowly rises. Due to the relative movement of the mold and the scraper plate, the powder in the mold changes from a piled state to a spread state. When the scraper plate slowly rises to a fixed height (the upper surface of the powder in a flattened state), it stays for a certain time to ensure that the powder is in a flattened state.

[0061] In this embodiment, the scraper lifting structure includes a support frame, a scraper plate connecting frame, a ball screw 33 and a bearing seat 32;

[0062] The support frame is erected on the weighing and spreading platform, the ball screw 33 is vertically arranged on the support frame, and the upper end of the ball screw 33 is installed on the support frame through the bearing seat 32, and the ball screw drive motor 31 is connected to the screw drive;

[0063] The scraper plate connecting frame is vertically arranged, and the upper end of the scraper plate connecting frame is connected to the nut 34 of the ball screw 33 , and the lower end of the scraper plate connecting frame is connected to the scraper plate 35 .

[0064] This embodiment uses a ball screw to control the lifting of the scraper plate, which is convenient for control and can ensure high-precision adjustment.

[0065] In this embodiment, the scraper plates 35 include a rough spreading scraper plate and a fine spreading scraper plate. When the spreading unit uses the rough spreading scraper plate, the rough spreading mechanism 4 is formed. When the spreading unit uses the fine spreading scraper plate, the fine spreading mechanism 5 is formed.

[0066] like Figure 6 and 7 As shown, the rough spreading scraper plate is composed of an upper plate body 61 and a lower hollow frame 62, the lower edge of the hollow frame 62 is a horizontally arranged scraper tooth, the scraper tooth is fixedly connected to the plate body 61 through a vertical material tooth, and a plurality of material teeth are arranged horizontally at intervals. In this embodiment, the material teeth are arranged at both horizontal ends of the scraper tooth.

[0067] As shown Figure 8 and 9 As shown, the scraper plate for fine spreading is a rectangular plate body 63, and its lower edge is arranged horizontally.

[0068] In this embodiment, different scraper forms are used for coarse spreading and fine spreading. The scraper for coarse spreading adopts a loose material tooth structure. This material tooth structure avoids the situation that the scraper for fine spreading is inserted too deeply during the initial spreading, and the powder is scraped out of the mold during the scraping process, and the scraper is inserted too shallowly and cannot be scraped flat. After the scraper for coarse spreading is inserted, the powder will pass through the hollow area in the middle of the material teeth, and at the same time it can play a role of scraping flat.

[0069] The scraper plate for fine spreading adopts an integral scraper mechanism. Since the powder is roughly flattened after rough spreading, an integral scraper plate is adopted in the fine spreading process. The scraper lifting structure controls the scraper plate to descend to slightly below the powder plane, and then rises slowly. After rising to the upper plane of the powder, it stays for a certain time, and then rises quickly, thereby achieving precise leveling and reducing the scrap rate.

[0070] like Figure 1 , Figure 4 , Figure 5 and 10 As shown, the mold includes a mold bottom mold 36, a mold outer ring 37 and a mold boat 38. The mold bottom mold 36 is a circular structure, and the mold outer ring 37 is a circular ring structure. The mold bottom mold 36 is located inside the mold outer ring 37 and is at the bottom. The mold bottom mold 36 and the mold outer ring 37 form a mold cavity with an open top.

[0071] The mold outer ring 37 is provided with a mold boat 38 with an outer square inner circle structure. The mold outer ring 37 is arranged in the inner circle of the mold boat 38 and rotates with it, and an annular recessed portion is provided on the inner side of the bottom surface of the mold boat 38;

[0072] When the mold is located at the station below the material spreading mechanism, the mold bottom mold 36 and the mold outer ring 37 are placed on the turntable 41 and rotate with the turntable, and the mold boat 38 is located at the junction of the turntable 41 and the material weighing and spreading platform, and the recessed portion at the bottom of the mold boat 38 crosses the boundary line between the turntable 41 and the material weighing and spreading platform, so that the inner side of the bottom of the mold boat 38 is suspended and does not contact the turntable, so that the turntable will drive the mold bottom mold 36 and the mold outer ring 37 to rotate, while the mold boat 38 will not rotate.

[0073] Mold stop bars 19 are fixedly provided on both sides of the mold boat 28 , and the empty mold station array and the working mold station array are formed between the two mold stop bars 19 .

[0074] like Figure 1 , Fig.10 and 11 As shown, the feeding mechanism 9 includes a rail trolley arranged on the feeding side of the main machine mechanism, and the rail trolley is provided with a feeding propulsion cylinder 98 and a discharging propulsion cylinder 99. Figure 1 Not shown, the discharging mechanism 15 includes a track trolley disposed on the discharging side of the host mechanism.

[0075] The rail trolley comprises a trolley plate 92, wheels mounted on the trolley plate 92, guide rails 94, racks 95, lower wheels 96, a gear drive motor 97 and a gear 90 arranged at the end of a rotating shaft of the gear drive motor.

[0076] The guide rail 94 is arranged on the feeding side or the discharging side of the main machine mechanism, and the trolley plate 92 is arranged on the upper side of the guide rail, and cooperates with the corresponding guide rail through the wheels. A rack 95 parallel to the guide rail 94 is arranged on the lower side, and a gear drive motor 97 is installed on the trolley plate 92, and the gear 90 at the end of the rotating shaft of the gear drive motor is meshed with the rack 95.

[0077] When the track trolley moves along the guide, the gear drive motor 97 drags the gear 90 to move left and right on the rack 95. The gear drive motor 97 rotates forward to move the track trolley forward, and the gear drive motor 97 rotates reversely to move the track trolley backward.

[0078] The rail trolley of the feeding mechanism 9 is provided with a feeding propulsion cylinder 98 and a discharging propulsion cylinder 99. The mold is placed on the trolley plate 92 of the rail trolley, and the feeding propulsion cylinder 98 moves forward to push the mold into the main machine; the discharging propulsion cylinder 99 moves forward to push the mold out of the main machine.

[0079] And because there are multiple main machines and they are arranged in a row, the present invention only needs one set of feeding mechanism and discharging mechanism to complete the feeding and discharging of multiple main machines, and it can realize that the rail trolley moves forward once to complete the feeding and discharging actions at the same time. When the main machine has material, first the 9 discharging propulsion cylinder 99 of the feeding mechanism moves forward to the front of the main machine to discharge the material, and then the feeding mechanism 9 moves forward again to allow the feeding propulsion cylinder 98 to be located in front of the main machine, and the feeding propulsion cylinder 98 moves forward to push the mold on the trolley plate 92 of the feeding mechanism 9 into the main machine.

[0080] In this embodiment, the wheels of the rail trolley include an upper wheel 93 and a lower wheel 96, which are symmetrically arranged with the guide rail as the center line, and the upper wheel 93 abuts and guides the inner side of the guide rail, and the lower wheel 96 abuts and guides the outer side of the guide rail, forming an anti-rollover structure, which can make the rail trolley run smoothly; when the feed propulsion cylinder 98 and the discharging propulsion cylinder 99 are pushed forward, the trolley will roll over and tilt due to the existence of the force, and the cooperation between the lower wheel and the guide rail will offset this force, thereby preventing the trolley from rolling over and tilting.

[0081] like Figure 1 The mold unloading press mechanism includes a mold unloading press 17, a mold unloading positioning cylinder 18 and a mold unloading push cylinder 16; the mold unloading press 17 corresponds to the last position of the empty mold station array, the mold unloading push cylinder 16 is longitudinally arranged on the feeding side of the mold unloading press 17, and the mold unloading positioning cylinder 18 is vertically arranged on the discharging side of the mold unloading press 17. The mold unloading press 17 adopts a conventional three-beam four-column structure.

[0082] The discharge mechanism 15 sends the mold processed by the main machine to the unloading press mechanism station and starts the unloading operation: the unloading positioning cylinder 18 is lifted up, and the unloading pushing cylinder 16 is pushed forward, so that the mold is sent to the unloading press 17 and is blocked and positioned by the unloading positioning cylinder 18. Then the unloading pushing cylinder 16 returns to the initial position. At this time, the upper beam of the unloading press 17 just presses the mold outer ring 37, and the lower ejector head just presses the mold bottom mold 36. The lower ejector head pushes out and cooperates with the upper beam to separate the mold core from the mold outer ring.

[0083] And the mold unloading push cylinder 16 can be pushed forward again to push the mold outer ring 37 to the side, and then prevent the mold core from being adjusted into the mold outer ring 37 again, and the push-off mold unloading push cylinder 16 retreats, and the mold unloading press 17 retreats to the initial position. After that, the mold unloading push cylinder 16 is pushed forward again, and the mold is pushed from the mold unloading press 17 to the last position of the empty mold station row on the material weighing and spreading platform to supplement the empty mold and ensure the rotary cycle operation.

[0084] like Fig.13 and Fig.14 As shown, this embodiment also discloses a control method for a feeding and discharging mechanism of a rotary production line for producing soft abrasive sheets, comprising:

[0085] The steps of controlling the weighing and spreading platform to advance the mold;

[0086] The steps of weighing, pouring and spreading materials into the mold;

[0087] The step of feeding the material to the host mechanism;

[0088] The host mechanism performs heat pressing on the mold;

[0089] The step of the feeding mechanism pushing out the mold processed by the main machine and sending the mold to the unloading press mechanism through the discharging mechanism;

[0090] The step of unloading the mold by the unloading press mechanism;

[0091] After the mold unloading is completed, the empty mold is sent to the material weighing and spreading platform.

[0092] The step of controlling the weighing and spreading platform to advance the mold includes the following steps:

[0093] The horizontal push cylinder 6 pushes the mold at the last position of the mold work position to the feeding mechanism 9, and the horizontal push cylinder 6 retreats;

[0094] The longitudinal push cylinder 3 is pushed forward once, and the mold of the working mold station array is pushed forward one station in the longitudinal direction, and the longitudinal push cylinder 3 is retracted;

[0095] The horizontal push cylinder 1 pushes once to push the mold at the end of the empty mold station array to the working mold station array.

[0096] The steps of weighing, pouring and spreading materials into the mold include the following processes:

[0097] When the molds in the working mold station array are stepped forward along the station, the molds are firstly weighed and poured by the weighing and pouring mechanism 2, and then are processed by the rough spreading mechanism 4 and the fine spreading mechanism 5 in sequence;

[0098] The step of feeding the material from the feeding mechanism to the host mechanism includes the following steps:

[0099] After the two horizontal push cylinders push the mold to the feeding mechanism, when any host needs to take materials, the feeding mechanism 9 moves to the feeding stop position directly in front of the corresponding host position, and then the feeding push cylinder 98 on the feeding mechanism 9 pushes the mold from the feeding mechanism 9 to the corresponding host.

[0100] The step of the feeding mechanism pushing out the mold processed by the main machine and sending the mold to the unloading press mechanism through the discharging mechanism includes the following steps:

[0101] When any host finishes processing and needs to discharge, the feeding mechanism 9 will move to the feeding stop position directly in front of the corresponding host position, and the discharging mechanism 15 will also move to the discharging stop position directly behind the corresponding host position;

[0102] When the feeding mechanism and the discharging mechanism are both in place, the discharging propulsion cylinder 99 on the feeding mechanism will move forward to push the mold from the main machine to the discharging mechanism 15; then the discharging mechanism will move forward to the mold unloading press position.

[0103] The step of unloading the mold by the unloading press mechanism includes the following steps:

[0104] When the discharge mechanism moves to the unloading press position, unloading related actions begin to be executed, the unloading positioning cylinder 18 is lifted up, the unloading pushing cylinder 16 is pushed to send the mold into the unloading press 17 and is blocked and positioned by the unloading positioning cylinder 18, and then the unloading pushing cylinder returns to its initial position. At this time, the upper beam of the unloading press press presses the outer ring of the mold, and the lower ejector head pushes out, cooperating with the upper beam to separate the mold core from the outer ring of the mold, and then the unloading positioning cylinder 18 is retracted, the unloading pushing cylinder 16 is pushed to push the outer ring of the mold to a side, the unloading pushing cylinder 16 is retracted, and the unloading press 17 returns to its initial position.

[0105] After the mold unloading is completed, the step of sending the empty mold to the material weighing and spreading platform includes the following steps:

[0106] After the unloading press mechanism has completed the steps of unloading the mold, the unloading push cylinder 16 is pushed forward again to push the mold from the unloading press to the empty mold station array on the material weighing and spreading platform.

[0107] The control method of the feeding and discharging mechanism of the rotary production line for producing soft abrasive sheets in this embodiment takes the completion of the curing process of the host 10 as an example, and the operating program flow is as follows:

[0108] The horizontal push cylinder 6 pushes forward once, and the mold with the weighed material is pushed onto the trolley platform of the feeding mechanism 9.

[0109] After the two horizontal push cylinders 6 retreat into place, the vertical push cylinder 3 advances once. After being pushed into place, the rough spreading mechanism 4 and the fine spreading mechanism 5 are started to perform rough spreading and fine spreading respectively to spread the material in the mold evenly.

[0110] After the longitudinal push cylinder 3 returns to its position, the transverse push cylinder 1 pushes the empty mold once to the bottom of the weighing and pouring mechanism 2 and then returns. The weighing and pouring mechanism 2 automatically weighs the material according to the preset weight, and after the weighing is completed, the weighed material is automatically poured into the mold.

[0111] After the two horizontal push cylinders 6 push the mold onto the trolley platform of the feeding mechanism 9, the feeding mechanism 9 will move forward (forward in the direction of the main machine), and the discharging mechanism will also retreat (move in the direction of the main machine), and the feeding mechanism 9 will move forward to the discharging position of the main machine 10 (that is, the discharging pushing cylinder 8 is located directly in front of the main machine 10), and the discharging mechanism 15 will also retreat to the main machine position (directly behind the main machine). When the feeding and discharging mechanisms are in place, the discharging pushing cylinder 8 will move forward to push the mold out of the main machine 10 onto the discharging mechanism 15, and then the discharging mechanism 15 will move forward to the unloading press position to start the unloading related operations.

[0112] After the discharge push cylinder 8 retreats into position, the feeding mechanism 9 will advance again to the feeding stop position of the main machine 10 (that is, the feeding push cylinder 7 is located directly in front of the main machine 10), and the feeding push cylinder 7 will push the mold from the feeding mechanism 9 to the platform of the main machine 10. The main machine performs a pressing action to start curing of the mold, and at the same time, the feeding push cylinder 7 retreats. When the feeding push cylinder 7 retreats into position, the feeding mechanism 9 retreats and stops after retreating to the initial position.

[0113] When the discharge mechanism 15 moves to the unloading mold press position, the unloading mold related actions begin to be executed. The unloading mold positioning cylinder 18 is lifted up, and the unloading mold pushing cylinder 16 is pushed forward. When the mold is sent into the unloading mold press 17 and then returns to the initial position, the lower ejector pressure head of the unloading mold press 17 pushes out, and cooperates with the upper beam to separate the mold core from the mold outer ring. Then the unloading mold positioning cylinder 18 is retreated, and the unloading mold pushing cylinder 16 is pushed forward to push the mold outer ring to a deviation to prevent the mold core from being adjusted into the mold outer ring again. After pushing the deviation, it is retreated, and the unloading mold press 17 returns to the initial position. The unloading mold pushing cylinder 16 is pushed forward again to push the mold from the unloading mold press to the material weighing and spreading platform.

[0114] The control method of the feeding and discharging mechanism of the rotary production line for producing soft abrasive sheets also includes a preheating process, which must meet the following conditions: preheating execution quantity ≥ preheating setting quantity - X, so that after the final preheating is completed, there is powder in the mold located after the weighing station.

[0115] The number of preheating executions is the number of mold advances performed according to the steps of controlling the material weighing and spreading platform to advance the mold after the machine is turned on;

[0116] X is the number of empty mold station rows + 1, and in this embodiment X is 8;

[0117] The preheating setting quantity is the user-set value and is greater than or equal to X.

[0118] The control method of the feeding and discharging mechanism of the rotary production line for producing soft abrasive sheets also includes a sequential shutdown process;

[0119] When there is a sequential stop command request, the control module 20 blocks the weighing and unloading action, and blocks the spreading action after advancing Y times again. When all the molds in the host are transported out, the whole program stops;

[0120] Among them, Y is the total number of workstations occupied by the material weighing and unloading mechanism 2, the rough spreading mechanism 4, and the fine spreading mechanism 5. In this embodiment, Y is 3.

[0121] By setting up the sequential shutdown process, the mold with powder in it can be processed before shutdown when a shutdown request is made.

[0122] The control method of the feeding and discharging mechanism of the rotary production line for producing soft abrasive sheets also includes a material recognition process of the feeding mechanism, a material recognition process of the main machine, an automatic recognition process of entering the main machine, and a process of continuing to perform the operation after the main machine stops;

[0123] Among them, the material identification process of the feeding mechanism is as follows:

[0124] When the feeding mechanism 9 has material, the control module 20 marks that the feeding mechanism 9 has material; after the feeding mechanism 9 finishes feeding the material to the host, the marking that the feeding mechanism 9 has material will automatically reset;

[0125] When the feeding mechanism has material, the control module 20 automatically performs the feeding action; when the feeding mechanism has no material, the control module 20 automatically skips the feeding action.

[0126] The host material identification process is as follows:

[0127] After the main machine has finished feeding, it will automatically mark that the main machine has material; when the mold is pushed from the main machine to the discharge mechanism 15, the main machine has material mark will automatically reset;

[0128] When the host has material and requests to enter a new mold, the control module 20 will automatically perform the unloading action first and then the feeding operation. When the host has no material and requests to enter a new mold, the control module 20 will automatically skip the unloading action and directly perform the feeding operation.

[0129] The process of entering the host automatic identification is as follows:

[0130] When the host action is completed, it will send a command request to the control module to request to enter and exit the mold. The control module will automatically transport the mold to the corresponding host according to the request.

[0131] After the host stops, continue to perform the following operations:

[0132] When an emergency stop operation or sudden power failure occurs, the control module 20 will record the current status of the host operation. When the host program is executed again, you can choose to continue execution according to the breakpoint of the last execution or start execution from the first step after powering on.

[0133] The settings of the above-mentioned material identification process of the feeding mechanism, the material identification process of the main machine, the automatic identification process of entering the main machine, and the continued execution of the operation process after the main machine stops realize the intelligent memory function. When a mold enters the feeding mechanism, the main machine, and the discharging mechanism, the program will remember that there is a mold at this station. Regardless of whether the program is stopped or the equipment is powered off, until the mold rotates from this station to the next station, the program will record that there is no mold at the station. When the hot pressing of a certain main machine is completed or there is no mold in the main machine, the program will automatically recognize this state and automatically send the mold into the corresponding main machine.

[0134] The present invention forms a rotary working mode through the coordination of operating steps and operating procedures, and realizes the highly automated and intelligent operation of the feeding and discharging mechanism of the rotary production line for producing soft abrasive sheets, thereby improving production efficiency and enhancing product quality.

[0135] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

[0136] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "front", "rear", "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the protection content of the present invention.

Claims

1. A feeding and discharging mechanism for a rotary production line for producing soft abrasive discs, comprising a main machine, characterized in that: It also includes a feeding mechanism arranged on the feeding side of the main machine and a discharging mechanism arranged on the discharging side of the main machine; The material feeding and discharging mechanism cooperates with the material weighing and spreading platform. The material weighing and spreading platform includes two rows of mold stations arranged longitudinally on the platform. The two rows of mold stations are an empty mold station row and an operating mold station row. The operating mold station row is provided with a material weighing and pouring mechanism and a material spreading mechanism from the first position to the last position. A horizontal push cylinder is provided next to the last position of the empty mold station row, and the horizontal push cylinder pushes the mold at the last position of the empty mold station row to the operating mold station row. A longitudinal push cylinder is arranged beside the first position of the working mold station, and the longitudinal push cylinder pushes the mold of the working mold station forward longitudinally, so that the mold is processed by the weighing and unloading mechanism and the spreading mechanism in turn to complete the unloading; A two-push horizontal cylinder is arranged beside the last position of the working mold station, and the two-push horizontal cylinder pushes the mold at the last position of the mold station station to the feeding mechanism; The feeding mechanism sends the mold to the corresponding main machine, and the discharging mechanism sends the mold processed by the main machine to the unloading press mechanism. The mold unloaded by the unloading press mechanism is sent to the empty mold station array; The feeding mechanism comprises a track trolley arranged on the feeding side of the main machine, and the track trolley is provided with a feeding propulsion cylinder and a discharging propulsion cylinder; The discharging mechanism includes a track trolley arranged on the discharging side of the main machine; When any host needs to receive materials, the track trolley of the feeding mechanism moves to the feeding stop position directly in front of the corresponding host position, and then the feeding push cylinder on the feeding mechanism pushes the processed items from the feeding mechanism to the corresponding host; When any host finishes processing and needs to discharge, the feeding mechanism will move to the feeding stop position directly in front of the corresponding host position, and the discharging mechanism will also move to the discharging stop position directly behind the corresponding host position; when the feeding mechanism and the discharging mechanism have moved to their positions, the discharging push cylinder on the feeding mechanism will move forward to push the processed items from the host to the discharging mechanism; then the discharging mechanism will move to the next station; The main machines are arranged in a row to form a main machine row, and the feed ports of the main machines are all facing one side, and the discharge ports of the main machines are all facing the other side; The feeding mechanism and the discharging mechanism are respectively arranged on both sides of the main machine row.

2. The feeding and discharging mechanism of the rotary production line for producing soft abrasive discs according to claim 1 is characterized in that: The rail trolley comprises a trolley plate, wheels mounted on the trolley plate, guide rails, racks, lower wheels, a gear drive motor and a gear arranged at the end of a rotating shaft of the gear drive motor; The guide rail is arranged on the feeding side or the discharging side of the main machine, and the trolley plate is arranged correspondingly beside the guide rail, and cooperates with the corresponding guide rail through the wheels; A rack parallel to the guide rail is provided beside the guide rail, a gear drive motor is installed on the trolley plate, and a gear at the end of the rotating shaft of the gear drive motor is meshed with the rack.

3. The feeding and discharging mechanism of the rotary production line for producing soft abrasive discs according to claim 2 is characterized in that: The wheels include an upper wheel and a lower wheel, which are symmetrically arranged with the guide rail as the center line, and the upper wheel abuts and guides the inner side of the guide rail, and the lower wheel abuts and guides the outer side of the guide rail to form an anti-rollover structure.

4. The feeding and discharging mechanism of the rotary production line for producing soft abrasive discs according to any one of claims 1 to 3, characterized in that: The feed propulsion cylinder is a gas cylinder.

5. The feeding and discharging mechanism of the rotary production line for producing soft abrasive discs according to any one of claims 1 to 3, characterized in that: The discharging propulsion cylinder is an oil cylinder.

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