CN115635655A

CN115635655A - Production equipment and production method of plastic tray

Info

Publication number: CN115635655A
Application number: CN202211079499.0A
Authority: CN
Inventors: 苏伟
Original assignee: Jieshou Yaxin Plastic Technology Co ltd
Current assignee: Jieshou Yaxin Plastic Technology Co ltd
Priority date: 2022-09-05
Filing date: 2022-09-05
Publication date: 2023-01-24

Abstract

The invention discloses production equipment and a production method of a plastic tray, and particularly relates to the technical field of plastic molding, wherein a jacking mechanism is arranged, a servo motor II drives a transmission rod, three cams are driven to move synchronously through the transmission rod, the longer ends of the cams are in contact with rollers, so that ejector rods are driven to move upwards and extrude springs, the ejector rods drive push blocks to move, and the push blocks push the bottoms of the molded plastic trays, so that three groups of molded plastic trays and a lower die base are loosened, the demolding work of the plastic trays and the lower die base is facilitated, the plastic trays are easy to discharge, and the three groups of plastic trays are simultaneously jacked, so that the efficiency is high, the complicated step of manual demolding is omitted, and the quality of products is improved; through setting up running gear, the gear takes place the meshing with the rack in one of them guide way, and two slides are the transmission on the horizontal pole, realize the simultaneous movement of backup pad, and backup pad and movable mould seat move towards the direction of other two sets of die holders.

Description

Production equipment and production method of plastic tray

Technical Field

The invention relates to the technical field of plastic molding, in particular to a production device and a production method of a plastic tray.

Background

Pallets have been widely used in the fields of production, transportation, storage, circulation, and the like as a kind of container equipment similar to containers.

The invention patent with publication number CN106864935A discloses a plastic pallet and a production process, wherein before the pallet is formed, a bearing support is preset at the bearing position of a pallet foot pier, a hot-melt sheet is covered on a die, a panel wraps the bearing support in the panel through negative pressure for forming, after the bearing support is added to the foot pier, the bearing effect of the pallet is improved, and the pallet has the advantages of strong bearing performance and long service life.

Disclosure of Invention

The present invention is directed to a plastic pallet manufacturing apparatus and a method for manufacturing the same, which solves the above-mentioned problems of the related art.

The invention can be realized by the following technical scheme: the production facility of plastics tray, which comprises a base, the top surface of base is provided with three die holders of group, every the ejector pad that is used for jacking to shaping plastics tray is all installed to the inner chamber bottom surface of die holder, and the top surface of base and the bottom that corresponds every die holder are equipped with three cavity, climbing mechanism is installed to the bottom surface of base, and climbing mechanism includes three cam, the bottom surface fixedly connected with of ejector pad passes the inside ejector pin of cavity, the gyro wheel is installed to the bottom surface of ejector pin, the surface and the cam butt of gyro wheel, the bottom surface fixedly connected with dog of ejector pin, and the outside of ejector pin is located fixed cover between dog and the cavity and is equipped with the spring.

The invention has the further technical improvements that: the jacking mechanism further comprises two mounting plates which are arranged on the bottom surface of the base in parallel, a transmission rod is installed between the mounting plates in a rotating mode, one of the two mounting plates is provided with a second servo motor, the output end of the second servo motor is fixed to the end portion of the transmission rod, and the transmission rod is fixed to the cam.

The invention has further technical improvements that: four cradling pieces, wherein two are installed to the top surface edge of base the common fixedly connected with horizontal pole of top surface of cradling piece, two the surface of horizontal pole all overlaps and is equipped with the slide, be equipped with running gear between horizontal pole and the slide, two the below that is close to the slide between the slide is connected with the backup pad, the top surface middle part fixed mounting of backup pad has the cylinder, and the bottom surface of backup pad be provided with the movable mould seat of cylinder tailpiece of the piston rod portion rigid coupling, movable mould seat and one of them arbitrary die holder match the setting, the spacing montant of T shape structure is still installed to the bottom surface of backup pad, spacing montant and movable mould seat sliding connection.

The invention has the further technical improvements that: running gear is including setting up the lug on one of them slide inner wall, the surface of horizontal pole is equipped with the guide way, one of them the rack is installed to the inner wall of guide way, servo motor one is installed to the bottom surface of lug, the gear is installed to servo motor one's output shaft, intermeshing between gear and the rack, another install the leading wheel on the inner wall of slide, the leading wheel with correspond the guide way roll connection.

The invention has further technical improvements that: the bottom surfaces of the two sliding seats are provided with clamping cavities, inner cavities of the clamping cavities are matched with two ends of the supporting plate, the surface of the supporting plate is provided with a first positioning screw hole, the bottom surface of the sliding seat is provided with a second positioning screw hole communicated with the first positioning screw hole, and fastening bolts are embedded into the second positioning screw hole and the first positioning screw hole.

The invention has further technical improvements that: one side of base is provided with the link, the internally mounted of link has three conveyer belt, and the top surface of link is provided with the protection curb plate that is used for blockking the shaping plastics tray.

The invention has further technical improvements that: and a manipulator is arranged between every two adjacent lower die seats and is used for transferring the molded plastic tray to the surface of the conveying belt.

The invention also provides a production method of the plastic tray production equipment, which comprises the following specific steps:

filling injection molding liquid into inner cavities of the three lower die seats, and pushing the movable die seat and the limiting vertical rod to slide in a limiting manner by using an air cylinder so that the movable die seat and the lower die seats are pressed together to realize extrusion molding of the plastic tray;

step two, the transmission of the sliding seat and the cross rod is realized through the mutual meshing of the gear and the rack, the guide wheel and the guide groove are driven to roll, and the movable mold seat reaches the top of any lower mold seat;

step three, driving the transmission rod to rotate through the servo motor II, enabling the three cams to rotate simultaneously, enabling the cams to be abutted against the idler wheels to drive the ejector rods to ascend, simultaneously extruding the springs, and driving the push blocks to jack up the molded plastic tray through the ejector rods;

and step four, transferring the three groups of molded plastic trays onto three conveying belts through two mechanical arms.

Compared with the prior art, the invention has the following beneficial effects:

1. through the arrangement of the jacking mechanism, the transmission rod is driven to rotate by the servo motor II, the three cams are driven to synchronously move through the transmission rod, the longer ends of the cams are in contact with the rollers, the ejector rods are further driven to move upwards, the springs are elastically deformed under the combined action of the stop blocks and the concave cavities, the ejector rods are driven to move when moving upwards, the push blocks push the bottoms of the three groups of molded plastic trays, so that the three groups of molded plastic trays and the lower die base are loosened, the demolding work of the plastic trays and the lower die base is facilitated, the plastic trays are easy to discharge, the three groups of plastic trays are simultaneously jacked, the efficiency is high, the time and labor are saved, the complicated steps of manual demolding are omitted, and the product quality is improved;

2. through arranging the travelling mechanism, a gear is driven by a servo motor to rotate, and the gear is meshed with a rack in one guide groove, so that the slide seats and the cross rod realize transmission, and a guide wheel on the other slide seat is driven to roll in the other guide groove;

3. the plastic trays of three groups are transferred through the conveyor belt, the plastic trays are blocked by the protective side plates, and the plastic trays are prevented from falling off in the moving process.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the structural connection between the support plate and the slider according to the present invention;

FIG. 3 is an enlarged view of a portion of the invention at A in FIG. 2;

FIG. 4 is a schematic view of the structural connection between the cam and the roller according to the present invention;

FIG. 5 is a schematic view of the structural connection between the lift pin and the base according to the present invention.

In the figure: 1. a base; 2. a lower die holder; 3. a support rod; 4. a cross bar; 5. a guide groove; 6. a slide base; 7. a cylinder; 8. a support plate; 9. a movable die holder; 10. a connecting frame; 11. a conveyor belt; 12. a protective side plate; 13. a bump; 14. a guide wheel; 15. a card cavity; 16. a limiting vertical rod; 17. a rack; 18. a first servo motor; 19. a gear; 20. positioning the first screw hole; 21. a second positioning screw hole; 22. fastening bolts; 23. pushing a block; 24. a top rod; 25. a concave cavity; 26. a stopper; 27. a roller; 28. a spring; 29. a cam; 30. mounting a plate; 31. a servo motor II; 32. a transmission rod.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be given with reference to the accompanying drawings and preferred embodiments.

Referring to fig. 1-5, the present invention provides a plastic tray production apparatus, including a base 1, three sets of lower die holders 2 are disposed on a top surface of the base 1, a push block 23 for pushing up a molded plastic tray is mounted on a bottom surface of an inner cavity of each lower die holder 2, three cavities 25 are disposed on the top surface of the base 1 and corresponding to bottoms of the lower die holders 2, a lifting mechanism is mounted on the bottom surface of the base 1, the lifting mechanism includes three sets of cams 29, a push rod 24 penetrating through an inner portion of the cavity 25 is fixedly connected to a bottom surface of the push block 23, a roller 27 is mounted on a bottom surface of the push rod 24, a surface of the roller 27 abuts against the cam 29, a stopper 26 is fixedly connected to an outer surface of a bottom of the push rod 24, and a spring 28 is fixedly sleeved between the stopper 26 and the cavity 25 and an outer portion of the push rod 24.

The jacking mechanism further comprises two mounting plates 30 which are arranged on the bottom surface of the base 1 in parallel, a transmission rod 32 is rotatably mounted between the two mounting plates 30, a servo motor II 31 is mounted on the surface of one mounting plate 30, the output end of the servo motor II 31 is fixed with the end part of the transmission rod 32, the transmission rod 32 is fixed with the cam 29, and the longer end of the cam 29 is used for realizing the movement of the ejector rod 24.

Four cradling pieces 3 are installed to the top surface edge of base 1, wherein the common fixedly connected with horizontal pole 4 of top surface of two cradling pieces 3, the surface of two horizontal poles 4 all overlaps and is equipped with slide 6, be equipped with running gear between horizontal pole 4 and the slide 6, be connected with backup pad 8 between two slides 6 and near the below of slide 6, the top surface middle part fixed mounting of backup pad 8 has cylinder 7, and backup pad 8's bottom surface be provided with the movable mould seat 9 of 7 piston rod tip rigid couplings of cylinder, movable mould seat 9 matches the setting with arbitrary one of them die holder 2, the spacing montant 16 of T shape structure is still installed to backup pad 8's bottom surface, spacing montant 16 and movable mould seat 9 sliding connection.

When a formed plastic tray is processed, injection liquid is injected into three groups of lower die holders 2, the three lower die holders 2 are respectively subjected to punch forming through a movable die holder 9, after the three groups of plastic trays are formed, a transmission rod 32 is driven to rotate by a servo motor II 31, three cams 29 are driven to synchronously move through the transmission rod 32, the longer ends of the cams 29 are in contact with rollers 27, further, ejector rods 24 are driven to move upwards, under the combined action of stop blocks 26 and cavities 25, springs 28 are elastically deformed, when the ejector rods 24 move upwards, ejector blocks 23 are driven to move, the bottom of the formed plastic tray is pushed by the ejector blocks 23, the three groups of formed plastic trays and the lower die holders 2 are loosened, the plastic trays and the lower die holders 2 are convenient to demould, the plastic trays are easy to discharge, meanwhile, the three groups of plastic trays are ejected, the efficiency is high, the time and labor are saved, tedious steps of manual demoulding are omitted, and the quality of products is improved.

The bottom surfaces of the two sliding seats 6 are respectively provided with a clamping cavity 15, the inner cavity of each clamping cavity 15 is matched with the two ends of the supporting plate 8, the surface of the supporting plate 8 is provided with a first positioning screw hole 20, the bottom surface of each sliding seat 6 is provided with a second positioning screw hole 21 communicated with the first positioning screw hole 20, and fastening bolts 22 are embedded into the second positioning screw holes 21 and the first positioning screw holes 20.

The two ends of the support plate 8 are inserted into the clamping cavity 15, the positioning screw holes I21 and the positioning screw holes I20 are kept in a vertical collinear state, the fastening bolts 22 are embedded into the positioning screw holes I21 and the positioning screw holes I20, the support plate 8 and the two sliding seats 6 are installed, and the support plate 8 can synchronously move through the two sliding seats 6.

The traveling mechanism comprises a convex block 13 arranged on the inner wall of one sliding seat 6, guide grooves 5 are formed in the surface of the cross rod 4, a rack 17 is arranged on the inner wall of one guide groove 5, a first servo motor 18 is arranged on the bottom surface of the convex block 13, a gear 19 is arranged on an output shaft of the first servo motor 18, the gear 19 is meshed with the rack 17, a guide wheel 14 is arranged on the inner wall of the other sliding seat 6, and the guide wheel 14 is in rolling connection with the corresponding guide groove 5.

The servo motor I18 drives the gear 19 to rotate, and the gear 19 is meshed with the rack 17 in one of the guide grooves 5, so that the sliding seats 6 are in transmission with the cross rod 4 and drive the guide wheel 14 on the other sliding seat 6 to roll in the other guide groove 5, and the two sliding seats 6 are in transmission on the cross rod 4 due to the installation of the support plate 8 between the two sliding seats 6, and the synchronous movement of the support plate 8 is realized.

After movable mould seat 9 finishes to one of them a set of die holder 2 pressfitting, slide 6 drives backup pad 8 and moves towards the direction of other two sets of die holders 2, under servo motor 18's control, movable mould seat 9 reachs the position of other two sets of die holders 2, it is downward to promote movable mould seat 9 through cylinder 7, and movable mould seat 9 takes place to slide with spacing montant 16, the stability of movable mould seat 9 when going up and down has been guaranteed, and then the quality when guaranteeing the die-casting of plastics tray, the spacing montant 16 of T shape structure, movable mould seat 9 has been avoided breaking away from with spacing montant 16.

One side of the base 1 is provided with a connecting frame 10, three conveyor belts 11 are installed inside the connecting frame 10, and the top surface of the connecting frame 10 is provided with a protective side plate 12 for blocking the molded plastic tray.

And a manipulator is arranged between every two adjacent lower die seats 2 and is used for transferring the molded plastic tray to the surface of the conveyor belt 11.

But the manipulator horizontal rotation to by program control, belong to common technical means in this field, can shift the plastics tray after the machine-shaping to the conveyer belt 11 of 2 front sides of die holder through the manipulator on, transport three groups plastics trays through three conveyer belt 11, block plastics tray through protection curb plate 12, avoid plastics tray to appear dropping or mixing up.

filling injection molding liquid into inner cavities of the three lower die seats 2, and pushing the movable die seat 9 and the limiting vertical rod 16 to slide in a limiting manner by using the air cylinder 7, so that the movable die seat 9 and the lower die seats 2 are pressed together, and extrusion molding of the plastic tray is realized;

step two, the transmission of the sliding seat 6 and the cross rod 4 is realized through the mutual meshing of the gear 19 and the rack 17, and the guide wheel 14 is driven to roll relative to the guide groove 5, so that the movable die holder 9 reaches the top of any one lower die holder 2;

step three, driving the transmission rod 32 to rotate through the servo motor II 31, so that the three cams 29 rotate simultaneously, the push rods 24 are driven to ascend by the abutting of the cams 29 and the rollers 27, the springs 28 are simultaneously extruded, and the push blocks 23 are driven by the push rods 24 to jack up the molded plastic tray;

and step four, transferring the three groups of molded plastic trays to three conveyor belts 11 through two mechanical arms.

When the plastic tray ejecting device is used, the transmission rod 32 is driven to rotate by the servo motor II 31, the three cams 29 are driven to synchronously move through the transmission rod 32, the longer ends of the cams 29 are in contact with the rollers 27, the ejector rods 24 are further driven to move upwards, the springs 28 are elastically deformed under the combined action of the stop blocks 26 and the concave cavities 25, the ejector rods 24 are driven to move upwards, the push blocks 23 are driven to move, the push blocks 23 push the bottoms of the formed plastic trays, so that the three groups of formed plastic trays and the lower die base 2 are loosened, the plastic trays and the lower die base 2 are convenient to demold, the plastic trays are easy to discharge, the three groups of plastic trays are ejected, the efficiency is high, time and labor are saved, the complicated steps of manual demolding are omitted, and the product quality is improved;

the gear 19 is driven to rotate by a servo motor I18, the gear 19 is meshed with the rack 17 in one guide groove 5, so that the sliding seats 6 are in transmission with the cross rod 4, and the guide wheel 14 on the other sliding seat 6 is driven to roll in the other guide groove 5, due to the fact that the supporting plate 8 is arranged between the two sliding seats 6, the two sliding seats 6 are in transmission on the cross rod 4, synchronous movement of the supporting plate 8 is achieved, and the supporting plate 8 and the movable die holder 9 move towards the directions of the other two groups of die holders 2.

Although the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalents and alternatives falling within the spirit and scope of the invention.

Claims

1. Production facility of plastics tray, including base (1), its characterized in that: the top surface of base (1) is provided with three groups of die holders (2), every the inner chamber bottom surface of die holder (2) all installs ejector pad (23) that are used for jacking to the shaping plastics tray, and the top surface of base (1) and the bottom that corresponds every die holder (2) are equipped with three cavity (25), climbing mechanism is installed to the bottom surface of base (1), and climbing mechanism includes three cam (29), the bottom surface fixedly connected with of ejector pad (23) passes inside ejector pin (24) of cavity (25), gyro wheel (27) are installed to the bottom surface of ejector pin (24), the surface and cam (29) butt of gyro wheel (27), the bottom external surface fixedly connected with dog (26) of ejector pin (24), and the outside of ejector pin (24) is located and is equipped with spring (28) between dog (26) and cavity (25).

2. The plastic pallet production equipment according to claim 1, wherein the jacking mechanism further comprises two mounting plates (30) arranged on the bottom surface of the base (1) in parallel, a transmission rod (32) is rotatably mounted between the two mounting plates (30), a second servo motor (31) is mounted on the surface of one of the mounting plates (30), the output end of the second servo motor (31) is fixed with the end of the transmission rod (32), and the transmission rod (32) is fixed with the cam (29).

3. The production equipment of plastic trays according to claim 1, wherein four support rods (3) are installed at the edge of the top surface of the base (1), two of the support rods (3) are fixedly connected with a cross rod (4) together at the top surface, two slide seats (6) are sleeved on the outer surface of the cross rod (4), a traveling mechanism is arranged between the cross rod (4) and the slide seats (6), two support plates (8) are connected between the slide seats (6) and below the slide seats (6) and close to the slide seats (6), a cylinder (7) is fixedly installed in the middle of the top surface of each support plate (8), a movable die seat (9) fixedly connected with the end part of a piston rod of the cylinder (7) is arranged on the bottom surface of each support plate (8), the movable die seat (9) is matched with any one of the lower die seats (2), a limiting vertical rod (16) of a T-shaped structure is further installed on the bottom surface of each support plate (8), and the limiting vertical rod (16) is connected with the movable die seat (9) in a sliding manner.

4. The plastic tray production equipment as claimed in claim 3, wherein the traveling mechanism comprises a projection (13) arranged on the inner wall of one of the slide carriages (6), the surface of the cross rod (4) is provided with guide grooves (5), the inner wall of one of the guide grooves (5) is provided with a rack (17), the bottom surface of the projection (13) is provided with a first servo motor (18), the output shaft of the first servo motor (18) is provided with a gear (19), the gear (19) is meshed with the rack (17), the inner wall of the other slide carriage (6) is provided with a guide wheel (14), and the guide wheel (14) is in rolling connection with the corresponding guide groove (5).

5. The plastic pallet production equipment as claimed in claim 3, characterized in that the bottom surfaces of the two slide bases (6) are provided with clamping cavities (15), the inner cavities of the clamping cavities (15) are matched with the two ends of the support plate (8), the surface of the support plate (8) is provided with a first positioning screw hole (20), the bottom surface of the slide base (6) is provided with a second positioning screw hole (21) communicated with the first positioning screw hole (20), and the second positioning screw hole (21) and the first positioning screw hole (20) are provided with fastening bolts (22) in an embedded manner.

6. The plastic pallet production facility according to claim 1, characterized in that one side of the base (1) is provided with a connecting rack (10), three conveyor belts (11) are installed inside the connecting rack (10), and the top surface of the connecting rack (10) is provided with a protective side plate (12) for blocking the molded plastic pallet.

7. The plant for producing plastic trays, as set forth in claim 6, characterized in that a robot is provided between two consecutive lower seats (2) for transferring the molded plastic trays to the surface of the conveyor belt (11).

8. The production method of the production equipment of the plastic tray is characterized by comprising the following specific steps:

filling injection molding liquid into inner cavities of three lower die seats (2), and pushing a movable die seat (9) and a limiting vertical rod (16) to slide in a limiting manner by using an air cylinder (7) so that the movable die seat (9) and the lower die seats (2) are pressed together to realize extrusion molding of a plastic tray;

step two, the transmission of the sliding seat (6) and the cross rod (4) is realized through the mutual meshing of the gear (19) and the rack (17), and the guide wheel (14) is driven to roll relative to the guide groove (5), so that the movable die holder (9) reaches the top of any one lower die holder (2);

thirdly, driving a transmission rod (32) to rotate through a servo motor II (31), enabling three cams (29) to rotate simultaneously, enabling the cams (29) to abut against the roller (27), driving the ejector rod (24) to ascend, simultaneously extruding the spring (28), and driving the push block (23) to jack up the molded plastic tray through the ejector rod (24);

and step four, transferring the three groups of molded plastic trays to three conveyor belts (11) through two mechanical arms.