Milan board automatic conveying device
Technical Field
The invention relates to the technical field of polymer foaming material preparation equipment, in particular to an automatic Milan plate conveying device.
Background
Milan plate is a modified polypropylene plate for foaming into a porous polymer foam material having a pore size of less than 100 μm and a pore density of more than 1.0X106 cells/cm 3.
The Chinese patent publication No. CN103350510B discloses a device and a method for preparing a polymer supercritical foaming material, and the specific method for preparing the foaming material by using the device is as follows: the first step: the polymer and the additive are added from a feeding port on the extruder; and a second step of: mixing, smelting and plasticizing by an extruder, and extruding the melt into a flat strip shape by a flat plate die; and a third step of: cutting the extruded melt into a sheet according to a certain length, and placing the sheet into an insulation box for insulation for later use; fourth step: the method comprises the steps of opening a multi-layer die which is heated by heat conducting oil and is kept at a constant temperature to a process temperature by an oil press, taking out a polymer block formed in an insulation box, putting the polymer block into cavities of the multi-layer die, heating liquefied gas by a heating system, compressing the liquefied gas by a pulse-free high-pressure injection metering pump to prepare supercritical fluid, injecting the supercritical fluid into each cavity in an omnibearing and multi-point manner according to a process required amount, melting the supercritical fluid and the polymer in the die cavity, and uniformly diffusing the supercritical fluid into the polymer; fifth step: the hydraulic press rapidly releases the mold locking pressure, the multi-layer mold is rapidly opened, the cavity is wrapped with the polymer of the supercritical liquid, the supercritical liquid rapidly expands and foams after the pressure is released, and tiny air holes are generated in the polymer, so that the microporous polymer foaming material is prepared; sixth step: taking out the just foamed product from the multi-layer die, putting the product into a cooling shaping device with a circulating cooling water system for shaping and cooling, and achieving the required foamed product.
When the milan plates extruded into thin slices in the prior art are put into a press for foaming, a manual placing mode is adopted, and when the milan plates are manually placed into a die cavity heated by the press, the following problems exist: the manual placement efficiency is low; the temperature of the die cavity is up to 150 ℃, and a certain danger is caused by manual placement; the press is internally provided with a plurality of layers of die cavities which are more than 4 meters, so that manual placement is more dangerous.
Disclosure of Invention
In order to solve the problems, the invention aims to provide an automatic Milan plate conveying device which can realize that Milan plates are automatically and mechanically placed into a die cavity of a press, and is safe and efficient.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the automatic Milan plate conveying device comprises a movable feeding trolley, wherein a lifting platform and a track frame are arranged on the feeding trolley side by side along the moving direction of the feeding trolley, the lifting platform can move up and down, a frame is fixedly arranged on the top surface of the lifting platform, a lifting mechanism is arranged on the frame, a pushing mechanism is arranged on the lifting mechanism, the pushing mechanism is driven by the lifting mechanism to move up and down step by step relative to the frame, and a space between the frame and the track frame is formed by the top surface of the lifting platform for placing Milan plates; the track frame is fixed on the feeding trolley through a frame and is positioned at the outer side of the feeding trolley, the track frame comprises a plurality of layers of sliding tracks, each layer of sliding track comprises two support rails positioned on the same horizontal plane, and a space between the two support rails accommodates and supports a Milan plate pushed from the top surface of the lifting platform by the pushing mechanism; all the support rails on the same side of the multi-layer sliding rail are fixedly connected at intervals up and down to form a rail edge, all the support rails on the other side of the multi-layer sliding rail are fixedly connected at intervals up and down to form another rail edge, and the two rail edges are driven by a blanking mechanism to be separated or close.
Further, be provided with two intervals and along the spacing that the pay-off dolly direction of movement set up on the lift platform top surface, hold the michelia board between two spacing, spacing one end has inwards bending's spacing portion, and spacing other end slidable mounting has guide bearing, and guide bearing can slide from top to bottom and lean on the dead weight to press on the michelia board.
Further, elevating system includes installing support and actuating mechanism, installing support sliding connection is in the frame, and actuating mechanism drives the installing support and gradually reciprocates for the frame, and installing support bottom surface sliding connection has the push pedal sliding seat, and the push pedal sliding seat is driven by pushing mechanism and is followed the travelling direction slip of pay-off dolly.
Further, the driving mechanism is a longitudinal air cylinder, a cylinder barrel of the longitudinal air cylinder is vertically and fixedly arranged on the frame, a piston rod of the longitudinal air cylinder extends out of the cylinder barrel downwards, the lower end part of the piston rod is fixedly connected with the mounting bracket, and a baffle limiting the stroke of the longitudinal air cylinder is arranged on the push plate sliding seat.
Further, the pushing mechanism is a transverse cylinder, the cylinder barrel end of the transverse cylinder is fixedly connected to the fixing seat of the mounting bracket, and the piston rod end of the transverse cylinder is fixedly connected to a push plate sliding seat.
Further, a horizontal baffle plate is fixed on one side of the push plate sliding seat.
Further, push mechanism is two horizontal cylinders, is respectively for setting up horizontal first horizontal cylinder and the horizontal cylinder of second below longitudinal cylinder side by side, and the cylinder fixed connection of first horizontal cylinder is on the fixing base of installing support, and the piston rod end fixed connection of first horizontal cylinder is on a cylinder connecting seat, and cylinder connecting seat horizontal sliding connection is on the installing support, and the cylinder fixed connection of the horizontal cylinder of second is on the cylinder connecting seat, and the piston rod end of the horizontal cylinder of second passes cylinder connecting seat fixed connection on push pedal sliding seat.
Furthermore, release agent is sprayed on the surface of the support rail, and a vertical limiting plate is arranged at the outer side end part of the support rail.
Further, the side edges of the two rail edges are close to the side edges of the frame and are fixedly provided with side frame sliding blocks, and the side frame sliding blocks are matched with horizontal frame sliding rails on the side edges of the frame, so that the two rail edges are in sliding connection on the side edges of the frame.
Further, the blanking mechanism is a blanking cylinder, the cylinder barrel end of the blanking cylinder is fixedly connected to one rail edge, and the piston rod end of the blanking cylinder is fixedly connected to the other rail edge.
Further, the top or the bottom of track frame is provided with synchro mechanism, and synchro mechanism includes master arm and two support arms, and master arm level sets up and the middle part rotates to be connected on the frame side, and the one end of two support arms rotates respectively to be connected on the both ends of master arm, and the other end of two support arms rotates respectively to be connected on two track limit portions.
The invention has the following beneficial effects:
the automatic Milan plate conveying device can be used for mechanically placing the Milan plates into the die cavity of a press, and is safe and efficient; the device fills the blank of the Milan board manufacturing industry automation. The automatic equipment replaces manual operation, so that the hidden dangers of high temperature of a die cavity, high die cavity position and the like are eliminated, and the stability is high; the working efficiency is greatly improved, and the time and labor costs are reduced.
The Milan plate automatic conveying device provided by the invention is provided with the double cylinders for simultaneously feeding air, and simultaneously acts to achieve the speed-increasing effect, which can reach 1.2m/s, meanwhile, the sliding rail and the sliding block are arranged as the guide in the movement process, so that the impact force of the pushing mechanism and the stability of the action are ensured.
The limiting frame of the automatic Milan plate conveying device is provided with an inwards bent limiting part and a guide bearing, wherein the end part of the guide bearing presses the Milan plate by self weight, so that the position of the Milan plate before being pushed is limited; meanwhile, the pushing mechanism is provided with the limiting plate at the outer side end part of the sliding rail, so that the Milan plate is stopped on the sliding rail in front of the limiting plate, the separation is prevented, the accuracy of the whole pushing process is ensured, and the Milan plate is ensured to be stopped at a preset position of the sliding rail.
The mold release agent is sprayed on the support rail, so that the friction coefficient can be reduced, and the Milan plate slides on the sliding rail and is buffered and stopped at a preset position.
Drawings
FIG. 1 is a schematic view of the overall structure of the press of the present invention;
FIG. 2 is an enlarged schematic view of the structure at M in FIG. 1;
FIG. 3 is a schematic overall perspective view of the present invention;
FIG. 4 is a schematic top view of the present invention;
FIG. 5 is a schematic view of the structure of the frame, the lifting mechanism and the pushing mechanism of the present invention;
fig. 6 is a schematic cross-sectional view taken along line A-A in fig. 5.
Reference numerals illustrate:
10-press, 100-milan plate, 1-feeding trolley, 11-roller, 12-light rail, 13-motor, 14-frame, 141-frame slide rail, 2-lifting platform, 21-supporting plate, 22-limit, 221-limit, 222-guide bearing, 223-limit slide rail, 224-limit slide, 23-frame, 231-frame slide rail, 3-lifting mechanism 3, 31-mounting bracket, 311-frame slide, 312-fixing base, 313-bracket slide rail, 314-push plate slide, 3141-baffle, 315-cylinder connection base, 316-bracket slide, 32-longitudinal cylinder, 321-connection piece, 4-pushing mechanism, 5-rail, 51-slide rail, 511-support rail, 5111-limit plate, 52-side frame, 521-side frame slide, 61-blanking cylinder, 62-synchronizing mechanism, 621-main arm, 622-arm.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and specific examples:
referring to fig. 1 to 6, the milan automatic conveying device comprises a feeding trolley 1, wherein a roller 11 of the feeding trolley 1 is matched with a light rail 12 on the ground, the light rail 12 is positioned near a press 10, and the feeding trolley 1 is driven by a motor 13 to move back and forth on the light rail 12. The feeding trolley 1 is fixedly provided with a frame 14.
The lifting platform 2 capable of lifting is arranged in the frame 14, specifically, the lifting platform 2 is a hydraulic scissor type lifting platform, the hydraulic scissor type lifting platform is driven to lift by a vertically arranged hydraulic cylinder, and a displacement sensor is arranged at the end part of a piston rod of the hydraulic cylinder. Two spacing frames 22 which are spaced apart and parallel to the direction of the light rail 12 are arranged at one end, close to the press 10, of the supporting plate 21 of the lifting platform 2, and a plurality of milan plates 100 are accommodated between the two spacing frames 22. The bottom of at least one of the limiting brackets 22 is hinged to the support plate 21 to facilitate the placement of the milan sheet 100 between the limiting brackets 22. The end part of the limiting frame 22 far away from the press 10 is provided with an inwards bent limiting part 221 to limit the end part of the Milan plate 100, the end part of the limiting frame 22 near the press 10 is slidably provided with a guide bearing 222, and the guide bearing 222 can slide up and down and is pressed on the Milan plate 100 by dead weight. Specifically, a vertical limit frame sliding rail 223 is installed at the end of the limit frame 22, a limit frame sliding block 224 is slidably connected to the limit frame sliding rail 223, and the limit frame sliding block 224 is connected to the guide bearing 222 through a horizontal shaft.
The support plate 21 of the lifting platform 2 is fixedly provided with a frame 23 at one end far away from the press 10, the frame 23 is provided with a lifting mechanism 3, and the lifting mechanism 3 comprises a horizontal mounting bracket 31 and a driving mechanism for driving the mounting bracket 31 to move up and down relative to the frame 23. Specifically, the side of the frame 23 near the press 10 is provided with a vertical frame sliding rail 231, the mounting bracket 31 is slidably mounted on the frame sliding rail 231 through a frame sliding block 311, one end of the bottom surface of the mounting bracket 31 near the frame 23 is fixedly provided with a fixing seat 312, the mounting bracket 31 is provided with a horizontal bracket sliding rail 313 along the length direction of the light rail 12, and the bracket sliding rail 313 is slidably provided with a push plate sliding seat 314. The driving mechanism is a longitudinal air cylinder 32, a cylinder barrel of the longitudinal air cylinder 32 is vertically and fixedly arranged on the other side edge of the frame 23, a piston rod of the longitudinal air cylinder 32 extends out of the cylinder barrel downwards, and the lower end part of the piston rod penetrates through the frame 23 through a connecting piece 321 to be fixedly connected with the mounting bracket 31. Specifically, the longitudinal air cylinder 32 is a single-acting air cylinder, and the single-acting air cylinder has a unidirectional stretching effect, and automatically resets downwards after being pushed out, so as to gradually move the mounting bracket 31 downwards.
The lifting mechanism 3 is provided with a pushing mechanism 4, and the pushing mechanism 4 is driven by the lifting mechanism 3 to move up and down relative to the frame 23. Specifically, the pushing mechanism 4 is a transverse cylinder, the transverse cylinder is horizontally disposed below the longitudinal cylinder 32, a cylinder end of the transverse cylinder passes through the frame 23 and is fixedly connected to the fixing seat 312 of the mounting bracket 31, a piston rod end of the transverse cylinder is fixedly connected to the push plate sliding seat 314 on the bracket sliding rail 313, a horizontal baffle 3141 is fixed on one side of the push plate sliding seat 314 close to the milan plate 100, and the baffle 3141 is used for limiting the downward movement stroke of the longitudinal cylinder 32. Preferably, the pushing mechanism 4 is two transverse cylinders, namely a first transverse cylinder 41 and a second transverse cylinder 42 which are arranged below the longitudinal cylinder 32 side by side and are horizontal, a cylinder barrel of the first transverse cylinder 41 penetrates through the frame 23 and is fixedly connected to a fixing seat 312 of the mounting bracket 31, a piston rod end of the first transverse cylinder 41 is fixedly connected to a cylinder connecting seat 315 on the bracket sliding rail 313, and the cylinder connecting seat 315 is slidably connected to the bracket sliding rail 313. The cylinder barrel of the second transverse cylinder 42 passes through the frame 23 and is fixedly connected to the cylinder connecting seat 315, and the piston rod end of the second transverse cylinder 42 passes through the cylinder connecting seat 315 and is fixedly connected to the push plate sliding seat 314 on the support sliding rail 313. The cylinder connecting seat 315 and the push plate sliding seat 314 are respectively connected to the support sliding rail 313 through a support sliding block 316.
The frame 14 is provided with track frame 5 and unloading mechanism near the one side of press 10, track frame 5 is located the pay-off dolly 1 outside. The rail frame 5 comprises a plurality of layers of sliding rails 51 and two side frames 52, and the number and the height of the sliding rails 51 are set corresponding to the number and the height of the layers of the die cavities in the press 10. Each layer of sliding rail 51 comprises two mutually independent L-shaped support rails 511 which are positioned on the same horizontal plane, a space between the two support rails 511 can accommodate and support the Milan plate 100, the surface of each support rail 511 is sprayed with a release agent, and the end part of each support rail 511, which is close to the press 10, is provided with a vertical limiting plate 5111. All the support rails 511 on the same side of the multi-layer sliding rail 51 are fixedly arranged on one side frame 52 at intervals up and down to form a rail side part I, and all the support rails 511 on the other side of the multi-layer sliding rail 51 are fixedly arranged on the other side frame 52 at intervals up and down to form another rail side part II. The side frames 52 are fixedly mounted adjacent the sides of the frame 14 with side frame sliders 521 which cooperate with horizontal frame rails 141 on the sides of the frame 14 to allow the two rail edges to be slidably connected to the sides of the frame 14.
The blanking mechanism is a blanking cylinder 61, the blanking cylinder 61 is horizontally arranged on the side edge of one side, close to the frame 14, of the middle position of the track frame 5, the cylinder barrel end of the blanking cylinder 61 is fixedly connected to one track edge I, and the piston rod end of the blanking cylinder 61 is fixedly connected to the other track edge II of the track frame 5. Preferably, the top or bottom of the side frame 52 is provided with a synchronizing mechanism 62, the synchronizing mechanism 62 includes a main arm 621 and two support arms 622, the main arm 621 is horizontally disposed and the middle part is rotatably connected to the side edge of the frame 14, one ends of the two support arms 622 are rotatably connected to two end parts of the main arm 621, and the other ends of the two support arms 622 are rotatably connected to the top or bottom of the two side frames 52. Further, the side frames 52 are provided with a synchronizing mechanism 62 at the top and bottom.
The automatic milan plate conveying device automatically conveys the milan plate 100 into the die cavity of the press 10 as follows:
in the initial state, the lifting platform 2 is positioned at the lower limit, and the lifting mechanism 3 is positioned at the upper limit;
putting down one side of the limiting frame 22, putting the Milan plate 100 between the two limiting frames 22, and resetting and fixing the lower limiting frame 22; at this time, the milan plates 100 in the limiting frame 22 are aligned with the sliding rails 51 of the lowest layer, and the push plate sliding seat 314 is aligned with the milan plates 100 of the highest layer in the limiting frame 22;
the working piston rod of the transverse cylinder rapidly stretches out to push the push plate sliding seat 314 to slide along the bracket, the top milan plate 100 in the limit frame 22 is pushed out to the lower sliding track 51, and the top milan plate 100 slides along the lower sliding track 51 until touching the limit plate 5111 and stopping on the sliding track 51; then resetting the transverse cylinder;
the lifting platform 2 drives the Milan plate 100 in the limiting frame 22 to move and align with the upper layer of sliding rail 51, in the working process, when the piston rod of the lifting mechanism 3 moves to the position of the second layer of Milan plate 100 under the weight of the mounting bracket 31 and the automatic reset action of the spring, the push plate sliding seat 314 aligns with the second layer of Milan plate 100 due to the blocking of the baffle 3141, and the piston rod of the transverse cylinder rapidly stretches out again to push the second layer of Milan plate 100 onto the upper layer of sliding rail 51;
repeating the above actions until the transverse cylinder pushes all the flange plates 100 in the limiting frame 22 out of the sliding tracks 51 of each layer respectively;
the motor 13 drives the feeding trolley 1 to move along the light rail 12 until each layer of sliding rail 51 stretches into each layer of die cavity of the press 10, the blanking cylinder 61 acts with the piston rod to extend outwards, the edges of the two rails are pushed to move outwards along the frame sliding rail 141 under the synchronous action of the synchronous mechanism 62, the two rails 511 of the same layer of sliding rail 51 are separated from each other, and the Milan plate 100 on the two rails 511 falls into the die cavity below.
The foregoing description is only specific embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the present invention and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present invention.