Active scraping and sweeping mechanism with connecting rod lifting function

Abstract

The invention provides an active scraping and sweeping mechanism with a connecting rod lifting function, and relates to a scraping and sweeping structure, the active scraping and sweeping mechanism comprises two groups of movable guide frames, a hanging frame, an oil cylinder, an air cylinder, a connecting rod and a scraping and brushing scraping plate, the movable guide frames are used for conveying an upper box and a lower box, and the movable guide frames are horizontally installed on a molding section conveying frame in a rolling connection mode through rollers; the two ends of the hanging frame are connected to the two sets of movable guide frames, the driving end of an oil cylinder installed on the molding section conveying frame is connected with the middle of the hanging frame, the two sides of the hanging frame are further connected with connecting rods through connecting plates, the ends of the connecting rods are connected with one set of base frames, and the two ends of the connecting rods are rotationally connected with the connecting plates and the base frames through pin shafts respectively. The scraping brush and the scraping plate are installed on the base frame to serve as a sweeping mechanism to scrape and sweep the lower box face of the thin box, an air cylinder is further installed on the movable guide frame in a hinged mode, the driving end of the air cylinder is connected with the end of the base frame through a rotating shaft in a rotating connection mode, hanging sweeping of the box faces of the upper box and the lower box with different heights can be completed, and therefore the waste rate caused by sand padding is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of sweeping structure, especially a kind of active sweeping mechanism with connecting rod lifting. BACKGROUND

[0002] For the high-speed line of double host, adopt linear wiring, push mechanism simultaneously pushes up box and lower box two sand box in modeling section each time, and existing sweeping mechanism is passive sweeping, if the height of upper box and lower box is inconsistent, the lower box surface of thin sand box cannot be swept in the process of advancing, if the lower box surface of thin sand box cannot be swept by sweeping mechanism, sand pad will cause the increase of waste rate when molding host molds. SUMMARY

[0003] In order to solve the above technical problems, the purpose of the present application is to provide a kind of active sweeping mechanism with connecting rod lifting, which is arranged below the thin box in front of the host of modeling section, and the sweeping process is driven in horizontal direction by oil cylinder, and the lifting action is completed by connecting rod driven by gas cylinder, the action is more stable and reliable, and the sweeping of the upper box and lower box surface of different height can be completed, so as to reduce the waste rate caused by sand pad.

[0004] The present application provides the following technical solutions: A kind of active sweeping mechanism with connecting rod lifting, including mobile guide frame, hanger, oil cylinder, gas cylinder, connecting rod, brush scraper, the upper box and lower box are used for conveying on the conveying frame of modeling section, the mobile guide frame is equipped with two groups, and is installed on the conveying frame of modeling section by horizontal rolling connection of roller, the two ends of hanger are connected on the two groups of mobile guide frame, the driving end of oil cylinder installed on the conveying frame of modeling section is connected with the middle part of hanger, the two sides of hanger are also connected with connecting rod through connecting plate, the end of connecting rod is connected with a group of base frame, and the two ends of connecting rod are respectively connected with connecting plate and base frame through pin shaft rotation connection, brush scraper is installed on base frame to serve as the lower box surface of thin box swept by cleaning mechanism, gas cylinder is also hinged and installed on the mobile guide frame, and the driving end of gas cylinder is connected with the end of base frame through pivot rotation connection; Therefore, after the start of gas cylinder, the lifting action of brush scraper can be driven by base frame, and the whole mechanism can be driven in horizontal direction by the start of oil cylinder, the whole mechanism is arranged below the thin box in front of the host of modeling section, before the start of pushing box, the connecting rod controlled by gas cylinder lowers to bottom position with cleaning mechanism, then the mechanism is pushed out by driving oil cylinder, after the action of pushing box is completed, the connecting rod controlled by gas cylinder rises to the height of short box surface, and then the oil cylinder is actively returned, to complete the sweeping of box surface, the sweeping process is driven by oil cylinder, the lifting action is completed by connecting rod driven by gas cylinder, the action is stable and reliable, and the sweeping of the upper box and lower box surface of different height can be completed, so as to reduce the waste rate caused by sand pad.

[0005] Preferably, two groups of parallel connecting rods are arranged on each side of the base frame, and a limiting block is arranged between the two groups of connecting rods on the connecting plate, and a connecting bolt is connected to the limiting block through a fixed nut to limit the swing angle of the connecting rod.

[0006] Preferably, the base frame comprises a cross beam for mounting the wiper blade and side frames mounted on both sides of the cross beam.

[0007] Preferably, the two ends of the cross beam are connected to the side frames, and a motor for driving the cross beam to rotate circumferentially is arranged on the side frame, and the wiper blade is provided with at least two groups and is uniformly distributed circumferentially around the cross beam, and the wiper blade is detachably connected to the cross beam, so that when the top wiper blade works for a certain period of time, the next group of wiper blades can be rotated to the top by rotating the cross beam to continue the cleaning operation, thereby saving the time for maintenance and replacement of the wiper blade.

[0008] Preferably, the wiper blade comprises a Z-shaped supporting plate and a wiper plate body mounted on the top of the supporting plate, the supporting plate is guided and connected with the guide column fixed on the cross beam, and the cross beam is further provided with an insert group for positioning the guide column through the supporting plate, that is, the supporting plate is abutted to the cross beam, the guide column passes through the supporting plate, and the insert group passes through the supporting plate and inserts the guide column, so that the wiper blade and the cross beam can be detachably positioned, and the installation and disassembly are convenient.

[0009] Preferably, the insert group comprises two groups of insert blocks slidably mounted on the cross beam along the axial direction of the cross beam, one end of the insert block is provided with an insert rod, and the other end is connected with a pressing spring, the end of the pressing spring is pressed on a group of positioning plates, the positioning plates are fixed on the cross beam between the two groups of insert blocks, and the insert rod is inserted into the guide column through the supporting plate under the pressing of the pressing spring.

[0010] Preferably, the wiper blade is provided with two groups, when the wiper blade is driven by the motor to rotate to the bottom, the insert rod is separated from the guide column and the supporting plate by compressing the pressing spring, so as to complete the maintenance and replacement of the wiper blade.

[0011] Preferably, the two groups of insertion blocks are respectively provided with a group of insertion slots and a group of insertion columns on the side facing each other, the side surface of the insertion slot is provided with a group of sealing rods, the end of the sealing rod is provided with an inclined surface matched with the tapered surface of the end of the insertion column, the side surface of the insertion column is also provided with a sealing groove matched with the insertion and positioning of the sealing rod, a group of frame bodies are arranged on the insertion block, the end of the sealing rod is supported on the frame body, a side stopper is also arranged on the sealing rod, a shaft rod penetrating through the frame body is fixed on the side stopper, a compression spring abutting between the side stopper and the frame body is further sleeved on the shaft rod, and a group of triangular blocks are further arranged on the sealing rod.

[0012] Preferably, the four groups of scraping wiper blades are respectively arranged at the scraping station, the dismounting station, the blanking station and the mounting station, the scraping wiper blade at the scraping station is used for cleaning operation, the scraping wiper blade at the dismounting station is matched with a group of jacks driven by a top cylinder, the top cylinder is mounted on the molding section conveying frame, and the two groups of insertion blocks are further provided with inclined surfaces distributed in the shape of a necking towards the middle, the inner portion of the top block is provided with an expanding groove matched with the inclined surface, when the scraping wiper blade to be replaced rotates to the dismounting station, the top cylinder drives the top block to press the two groups of insertion blocks, so that the two groups of insertion blocks move towards each other, until the insertion column is inserted into the insertion slot, and the sealing rod is inserted into the sealing groove under the pressing of the compression spring, then the insertion rod is separated from the guide column and the support plate, when the scraping wiper blade rotates to the bottom blanking station, the support plate drives the scraping wiper blade to fall freely under the action of gravity, and a group of top pushing blocks are arranged at the mounting station, the end of the top pushing block is provided with an inclined surface matched with the triangular block, the top pushing block drives the triangular block under the driving of the top pushing cylinder on the molding section conveying frame, so that after the support plate corresponding to the new scraping wiper blade is introduced into the guide column, the triangular block drives the sealing rod to separate from the sealing groove, and then the two groups of insertion blocks are driven to open under the driving of the abutting spring, so as to drive the insertion rod to penetrate through the support plate and be inserted into the guide column, so as to realize the positioning of the new scraping wiper blade on the cross beam, and thus the maintenance and replacement of the scraping wiper blade can be automatically completed, which is more convenient, and the degree of automation and the efficiency of maintenance and replacement are higher.

[0013] The beneficial effects of the present application are: the purpose of the present application is to provide a driven scraping mechanism with connecting rod lifting, which is arranged below the thin box in front of the main machine of the molding section, before the box is pushed, the cylinder controls the connecting rod to lower the scraping mechanism to the bottom position, then the oil cylinder drives the mechanism to push out, after the box pushing action is completed, the cylinder controls the connecting rod to rise to the height of the low box surface, and then the oil cylinder is driven to return, the scraping of the box surface is completed, the scraping process is driven by the oil cylinder, the lifting action is completed by the cylinder driving the connecting rod, the action is stable and reliable, and the scraping of the upper box and the lower box surfaces of different heights can be completed, so as to reduce the waste type rate caused by sand cushioning. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and are meant to explain the application without limiting the application to the embodiments. In the drawings: Figure 1 is a structural schematic diagram of the application; Figure 2 is a structural schematic diagram of the application from another perspective; Figure 1 Figure 3 is a structural schematic diagram of the application from another perspective; Figure 4 is a structural schematic diagram of the application from another perspective; Figure 5 is a structural schematic diagram of the application from another perspective; Figure 4 Figure 6 is a structural schematic diagram of the application from another perspective; Figure 7 is a structural schematic diagram of the application from another perspective; Markings in the drawings: 1, moving guide frame; 2, hanging frame; 3, oil cylinder; 4, air cylinder; 5, connecting rod; 6, squeegee blade; 7, roller; 21, connecting plate; 22, base frame; 23, pin shaft; 24, rotating shaft; 25, limiting block; 26, nut; 27, bolt; 221, cross beam; 222, side frame; 61, support plate; 62, squeegee plate body; 63, guide column; 64, plug group; 641, plug; 642, plug rod; 643, pressing spring; 644, positioning plate; 645, plug slot; 646, plug column; 647, sealing rod; 648, inclined surface; 649, sealing slot; 6410, frame body; 6411, side stop; 6412, shaft rod; 6413, compression spring; 6414, triangular block; 6415, inclined surface; 100, squeegee station; 200, disassembly station; 300, blanking station; 400, installation station; 500, top block; 600, flared slot; 700, pushing block; 800, bevel surface. DETAILED DESCRIPTION

[0015] Example 1 As Figures 1-2 ​​As shown, a kind of link lifting active scraping mechanism, in the embodiment, including mobile guide frame 1, hanger 2, oil cylinder 3, cylinder 4, connecting rod 5, brush scraping plate 6, the upper box and lower box for conveying on molding section conveying frame, mobile guide frame 1 is equipped with two groups, and is installed on molding section conveying frame by horizontal rolling wheel 7, the two ends of hanger 2 are connected on two groups of mobile guide frame 1, the driving end of oil cylinder 3 installed on molding section conveying frame is connected with the middle part of hanger 2, connecting rod 5 is also connected on the two sides of hanger 2 by connecting plate 21, the end of connecting rod 5 is connected with a group of base frame 22, and the two ends of connecting rod 5 are respectively connected with connecting plate 21 and base frame 22 by pin shaft 23 rotationally installed, brush scraping plate 6 is installed on base frame 22 to be as the lower box surface of the thin box of the cleaning mechanism, cylinder 4 is also rotationally installed on mobile guide frame 1, and the driving end of cylinder 4 is rotationally connected with the end of base frame 22 by pivot 24; Therefore, after the start of cylinder 4, then can drive brush scraping plate 6 to make the action of lifting by base frame 22, and oil cylinder 3 is started and then can drive mechanism to reciprocate in horizontal direction, and the overall mechanism is arranged below the thin box in front of the main machine of molding section, before pushing the box, cylinder 4 controls connecting rod 5 to descend to the bottom position with the cleaning mechanism, then drive oil cylinder 3 to push the mechanism, after the action of pushing the box is completed, cylinder 4 controls connecting rod 5 to rise to the height of the thin box surface, and then is driven back by oil cylinder 3, to complete the scraping of the box surface, the scraping process is driven by oil cylinder 3, and the lifting action is completed by cylinder 4 driven connecting rod 5, stable and reliable, and can complete the scraping of the upper box and lower box surface of different height, to reduce the waste rate caused by sand pad.

[0016] Base frame 22 is provided with two groups of parallel distribution connecting rods 5 on the two sides, and limiting block 25 between the two groups of connecting rods 5 is also provided on connecting plate 21, and the connecting bolt 27 is connected on limiting block 25 by fixed nut 26 to limit the swing angle of connecting rod 5, the setting of two groups of connecting rods 5 on each side can not only improve the stability of structure action, but also can reduce the safety risk caused by cylinder 4 failure by limiting through the connection of bolt 27, so that the mechanism action is more stable and reliable, and the overall adaptability of mechanism can also be improved by the thread adjustment of bolt 27 relative to nut 26.

[0017] Base frame 22 includes a group of cross beams 221 for installing brush scraping plate 6 and side frames 222 installed on the two sides of cross beam 221.

[0018] Embodiment 2 As Figures 3-7As shown, a link lifting driven sweeping mechanism, in this embodiment, is further limited based on embodiment 1, both ends of the cross beam 221 are connected to the side frame 222, and a motor for driving the cross beam 221 to rotate circumferentially is also arranged on the side frame 222. The brush scraper 6 is provided with at least two groups, which are uniformly distributed along the circumference of the cross beam 221. The brush scraper 6 is detachably connected to the cross beam 221. Therefore, when the top brush scraper 6 works for a certain period of time, the next group of brush scrapers 6 can be rotated to the top to continue the cleaning work by rotating the cross beam 221, thereby saving the time for maintaining and replacing the brush scraper 6.

[0019] The brush scraper 6 includes a Z-shaped support plate 61 and a brush plate body 62 mounted on the top of the support plate 61. The support plate 61 is guidedly connected to the guide column 63 fixed on the cross beam 221. The cross beam 221 is also provided with an insert group 64 for positioning the guide column 63 through the support plate 61. That is, the brush scraper 6 and the cross beam 221 can be detachably positioned by abutting the support plate 61 to the cross beam 221, and the guide column 63 passes through the support plate 61, and the insert group 64 passes through the support plate 61 and inserts the guide column 63. The installation and disassembly are relatively convenient.

[0020] The insert group 64 includes two groups of insert blocks 641 slidably mounted on the cross beam 221 along the axial direction of the cross beam 221. One end of the insert block 641 is provided with an insert rod 642, and the other end is connected with a pressing spring 643. The end of the pressing spring 643 abuts against a group of positioning plates 644 fixed on the cross beam 221 between the two groups of insert blocks 641. The insert rod 642 is inserted into the guide column 63 under the abutment of the pressing spring 643.

[0021] The two groups of insert blocks 641 are respectively provided with a group of insertion grooves 645 and a group of insertion columns 646 on the opposite sides. The side surface of the insertion groove 645 is provided with a group of sealing rods 647. The end of the sealing rod 647 is provided with an inclined surface 648 matched with the tapered surface of the end of the insertion column 646. The side surface of the insertion column 646 is also provided with a sealing groove 649 for positioning the insertion of the sealing rod 647. The insert block 641 is provided with a group of frame bodies 6410. The end of the sealing rod 647 is supported on the frame body 6410. The sealing rod 647 is also provided with a side stop 6411. The shaft rod 6412 passing through the frame body 6410 is fixed on the side stop 6411. The compression spring 6413 is further sleeved on the shaft rod 6412 and abuts against the side stop 6411 and the frame body 6410. The sealing rod 647 is also provided with a group of triangular blocks 6414.

[0022] The squeegee blades 6 are provided with four groups, and the four groups of squeegee blades 6 correspond to the squeegeeing station 100, the dismounting station 200, the blanking station 300 and the mounting station 400 respectively. The squeegee blade 6 at the squeegeeing station 100 is used for cleaning operation. The squeegee blade 6 at the dismounting station 200 is positioned with a group of top blocks 500 driven by a top cylinder. The top cylinder is installed on the molding section conveying frame. Two groups of insertion blocks 641 are further provided with inclined surfaces 6415 distributed in a necked shape towards the middle. The top block 500 is provided with an expanded groove 600 matched with the inclined surface 6415. When the squeegee blade 6 to be replaced rotates to the dismounting station 200, the top cylinder drives the top block 500 to press the two groups of insertion blocks 641, so that the two groups of insertion blocks 641 move towards each other until the insertion column 646 is inserted in the insertion groove 645, and the sealing rod 647 is inserted in the sealing groove 649 under the pressing of the compression spring 6413, the insertion rod 642 is separated from the guide column 63 and the supporting plate 61, and when the squeegee blade 6 rotates to the bottom blanking station 300, the supporting plate 61 drives the squeegee blade 6 to fall freely under the action of gravity and separate from the guide column 63, and a group of top pushing blocks 700 are arranged at the mounting station 400. The end of the top pushing block 700 is provided with an inclined surface 800 matched with the triangular block 6414. The top pushing block 700 drives the triangular block 6414 under the driving of the top pushing cylinder on the molding section conveying frame, so that after the supporting plate 61 of the new squeegee blade 6 is guided into the guide column 63, the triangular block 6414 drives the sealing rod 647 to separate from the sealing groove 649, and then the two groups of insertion blocks 641 are driven to open under the driving of the compression spring 643 to drive the insertion rod 642 to be inserted into the guide column 63 through the supporting plate 61, so as to realize the positioning of the new squeegee blade 6 to the cross beam 221. Thus, the maintenance and replacement of the squeegee blade 6 can be automatically completed, which is more convenient, and the degree of automation and the efficiency of replacement and maintenance are higher.

[0023] The working principle of the present application is as follows: the purpose of the present application is to provide a main driven scraping mechanism with connecting rod lifting, which is arranged below the thin box in front of the main machine of the molding section. Before the box is pushed, the cylinder 4 controls the connecting rod 5 to lower the scraping mechanism to the bottom position together, and then the oil cylinder 3 drives the mechanism to push out. After the box pushing action is completed, the cylinder 4 controls the connecting rod 5 to rise to the height of the low box surface, and then the oil cylinder 3 is driven to return, completing the scraping of the box surface. The scraping process is driven by the oil cylinder 3, and the lifting action is completed by the cylinder 4 driving the connecting rod 5. The action is stable and reliable, and can complete the scraping of the upper and lower box surfaces of different heights, thereby reducing the waste type rate caused by sand padding.

[0024] The above merely describes the preferred embodiments of the present application and is not used to limit the present application, and although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some technical features thereof. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A positive squeegee mechanism with linkages for lifting, characterized in that, The movable guide frame is provided with two groups, and is horizontally connected to the molding section conveying frame through rollers; the hanger is connected to the two groups of movable guide frames at both ends; the oil cylinder drive end is connected to the middle of the hanger; the two sides of the hanger are connected with connecting plates and connecting rods; the end of the connecting rod is connected with a group of base frames; the two ends of the connecting rod are connected with the connecting plates and the base frames through pin shafts; the brush scraping plate is installed on the base frame to scrape the bottom of the thin box; the movable guide frame is also connected with a cylinder; the drive end of the cylinder is connected with the end of the base frame through a rotating shaft.

2. A positive scraping mechanism with a connecting rod lifting according to claim 1, characterized in that, The base frame is provided with two groups of parallel connecting rods on both sides; the connecting plates are provided with limiting blocks between the two groups of connecting rods; the limiting blocks are connected with the connecting rods through fixed nut connecting bolts.

3. A positive scraping mechanism with a connecting rod lifting according to claim 1, characterized in that, The base frame includes a group of cross beams for installing the brush scraping plate and side frames installed on both sides of the cross beams.

4. A positive scraping mechanism with a connecting rod lifting according to claim 3, characterized in that, The two ends of the cross beam are connected with the side frames; the side frames are provided with motors for driving the cross beam to rotate; the brush scraping plate is provided with at least two groups and is uniformly distributed on the periphery of the cross beam; the brush scraping plate is detachably connected to the cross beam.

5. A positive scraping mechanism with a connecting rod lifting according to claim 4, characterized in that, The brush scraping plate includes a Z-shaped support plate and a brush plate body installed on the top of the support plate; the support plate is connected with guide columns fixed on the cross beam; the cross beam is provided with an insert group for positioning the guide columns.

6. A positive scraping mechanism with a connecting rod lifting according to claim 5, characterized in that, The insert group includes two groups of insert blocks slidably installed on the cross beam along the axial direction of the cross beam; one end of the insert block is provided with an insert rod, and the other end is connected with a pressing spring; the end of the pressing spring is pressed on a group of positioning plates; the positioning plates are fixed on the cross beam between the two groups of insert blocks; the insert rod is inserted into the guide column through the support plate under the pressing of the pressing spring.

7. A positive scraping mechanism with a connecting rod lifting according to claim 6, characterized in that, The brush scraping plate is provided with two groups; when the brush scraping plate is driven to rotate to the bottom by the motor, the insert rod is separated from the guide column and the support plate by compressing the pressing spring, so as to complete the maintenance and replacement of the brush scraping plate.

8. A positive scraping mechanism with a connecting rod lifting according to claim 6, characterized in that, One side of the two groups of insert blocks is provided with a group of insertion grooves and a group of insertion columns; the side of the insertion groove is provided with a group of sealing rods; the end of the sealing rod is provided with an inclined surface matched with the tapered surface of the end of the insertion column; the side of the insertion column is provided with a sealing groove matched with the sealing rod; the insert block is provided with a group of frame bodies; the end of the sealing rod is supported on the frame body; the sealing rod is provided with a side stop; the side stop is fixed with a shaft rod passing through the frame body; the shaft rod is further provided with a compression spring pressed between the side stop and the frame body; the sealing rod is provided with a group of triangular blocks.

9. A positive scraping mechanism with a connecting rod lifting according to claim 8, characterized in that, The scraper blade is provided with four groups, and the four groups of scraper blades correspond to the scraping station, the dismounting station, the blanking station and the mounting station respectively. The scraper blade at the scraping station is used for cleaning operation. The scraper blade at the dismounting station is matched with a set of top block driven by a top cylinder. The top cylinder is installed on the molding section conveying frame. Two groups of insertion blocks are also provided with inclined surfaces which are distributed in the shape of a necking to the middle. The top block is provided with an expanded slot matched with the inclined surface. When the scraper blade to be replaced rotates to the dismounting station, the top cylinder drives the top block to press the two groups of insertion blocks, so that the two groups of insertion blocks move towards each other until the insertion column is inserted into the insertion slot, and the sealing rod is inserted into the sealing slot under the pressing of the compression spring, then the insertion rod is separated from the guide column and the support plate. When the scraper blade rotates to the bottom blanking station, the support plate drives the scraper blade to separate from the guide column and freely fall under the action of gravity. A set of top pushing block is arranged at the mounting station. The end of the top pushing block is provided with an inclined surface matched with the triangular block. The top pushing block drives the triangular block under the driving of the top pushing cylinder on the molding section conveying frame, so that after the support plate corresponding to the new scraper blade is introduced into the guide column, the sealing rod is separated from the sealing slot by driving the triangular block, and then the two groups of insertion blocks are driven to pop up under the driving of the compression spring to drive the insertion rod to be inserted into the guide column through the support plate, so as to realize the positioning of the new scraper blade to the cross beam.

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