CN115782134A - Blow molding machine suitable for cutting irregular plastic products - Google Patents
Blow molding machine suitable for cutting irregular plastic products Download PDFInfo
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- CN115782134A CN115782134A CN202211552993.4A CN202211552993A CN115782134A CN 115782134 A CN115782134 A CN 115782134A CN 202211552993 A CN202211552993 A CN 202211552993A CN 115782134 A CN115782134 A CN 115782134A
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- 239000004033 plastic Substances 0.000 title claims abstract description 87
- 229920003023 plastic Polymers 0.000 title claims abstract description 87
- 238000005520 cutting process Methods 0.000 title claims abstract description 76
- 238000000071 blow moulding Methods 0.000 title claims abstract description 43
- 230000001788 irregular Effects 0.000 title claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims description 17
- 238000007664 blowing Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 12
- 230000033001 locomotion Effects 0.000 description 14
- 239000000047 product Substances 0.000 description 13
- 230000002457 bidirectional effect Effects 0.000 description 11
- 239000000243 solution Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a blow molding machine suitable for cutting irregular plastic products, which comprises: the main body of the blow molding machine comprises two oppositely arranged mold cavity fixing plates, mold cavities arranged on the mold cavity fixing plates, a screw rod module driving the two mold cavity fixing plates to move oppositely or in opposite directions, and a base supporting the screw rod module, and comprises: when the cutting machine is used for cutting off the redundant raw materials at the top and the bottom of the irregular plastic parison, the radian of the top and the bottom of the plastic parison is self-adapted by the elastic piece, the cutter is ensured to be always attached to the top and the bottom of the plastic parison, and the cutter is used for cutting off the redundant raw materials at the top and the bottom of the plastic parison without manual work in the demolding process, so that the expenditure of additional labor force is reduced.
Description
Technical Field
The invention relates to the technical field of blow molding machines, in particular to a blow molding machine suitable for cutting irregular plastic products.
Background
A blow molding machine is a plastic processing machine. After the liquid plastic is ejected, the plastic is blown into a shaped cavity by the force of the wind blowing out of the machine, which is called a blow molding machine, to produce the product.
Blow molding, also known as blow molding, is a rapidly developing plastic processing method. The method comprises the steps of extruding or injection molding thermoplastic resin to obtain a tubular plastic parison, placing the parison in a split mold while the parison is hot (or heated to a softened state), immediately introducing compressed air into the parison after the mold is closed to blow the plastic parison to cling to the inner wall of a mold, cooling and demolding, and then cutting off redundant raw materials at the top and the bottom of the plastic parison by a cutter to obtain various hollow products.
With the rapid development of society, plastic products are used more and more widely in daily life and work of people, such as various large plastic drums and plastic boxes, for large plastic parts, because the plastic parts are made of plastics, the overall stability of the plastic parts is poor compared with that of metal products, but the cost of the plastic drums and plastic boxes made of plastics is very low, and in order to enhance the stability of the large plastic parts, people design reinforcing ribs and reinforcing columns on the outer sides of the plastic parts, or design the appearance of the plastic parts into irregular shapes, such as the bottom of the plastic drum is designed into a circular shape which is concave upwards, or the top of the plastic box is designed into an arch shape, and the like, so as to enhance the stability of the plastic parts.
However, for plastic products with irregular appearance, the blow molding is completed in a blow molding machine, and when the cutter is used for cutting redundant raw materials at the top and the bottom of the plastic parison, the cutting is often carried out manually, so that additional labor force is increased;
meanwhile, after the blow molding of the blow molding machine is finished, when the plastic parts with regular shapes are cut, the plastic parison needs to be transported to the next processing procedure, the plastic parison is clamped by the clamp at first, and then the cutting mechanism is used for cutting, so that the energy waste is increased invisibly.
Disclosure of Invention
In view of the above technical deficiencies, the present invention provides a blow molding machine suitable for cutting irregular plastic products, wherein a transmission mechanism and an elastic cutting mechanism are disposed on one side of a main body of the blow molding machine, and the transmission mechanism is used for transmitting the elastic cutting mechanism to move while a mold cavity fixing plate moves, so as to synchronously remove the excess raw materials on the plastic parison, thereby reducing the expenditure of additional labor force.
In order to solve the technical problem, the invention adopts the following technical scheme:
the invention provides a blow molding machine suitable for cutting irregular plastic products, which comprises:
the blow molding machine main part, the blow molding machine main part includes the die cavity fixed plate of two relative settings, installs die cavity on the die cavity fixed plate, drive two the relative or opposite direction motion's of die cavity fixed plate lead screw module and to the base that the lead screw module supported, and:
a drive mechanism for driving the elastic cutting mechanism to move when the two die cavity fixing plates move, and:
the elastic cutting mechanism comprises a push rod which moves linearly, a limiting seat which limits the moving direction of the push rod, a height adjusting mechanism which adjusts the cutting height and an elastic cutter which is suitable for arc-shaped cutting;
the elastic cutter comprises a second guide rod, a connecting plate, an elastic piece, a cutter and a limiting groove;
the connecting plate is fixedly connected to the top end of the second guide rod, the upper surface of the height adjusting mechanism is fixedly connected with an elastic piece, the top end of the elastic piece is fixedly connected with the lower surface of the connecting plate, and the cutter is fixedly connected to the upper surface of the connecting plate.
Preferably, the lead screw module includes motor, thread bush and two-way lead screw, the motor is installed in one side of base, the one end of two-way lead screw and the output shaft fixed connection of motor, the other end of two-way lead screw passes through the bearing and rotates the one side of connecting at the motor, the quantity of thread bush is two, two the thread bush welds respectively in bottom one side of two die cavity fixed plates, the inside wall threaded connection of thread bush is in the outside of two-way lead screw.
Preferably, the blow molding machine body further comprises a first guide rod and a guide sleeve;
the quantity of uide bushing is two, two the uide bushing welds respectively in the bottom opposite side of two die cavity fixed plates, first guide bar fixed connection is in one side of base, the inboard slip of uide bushing in the outside of first guide bar.
Preferably, the transmission mechanism comprises a support rod, a rack, a first gear, a support frame, a first rotating shaft, a second gear and a connecting piece;
the utility model discloses a die cavity fixing device, including bracing piece, rack, support frame, bearing, connecting piece, support frame, bracing piece, rack and rack, the bracing piece welds in one side of a die cavity fixed plate, the rack welds in the one end that the die cavity fixed plate was kept away from to the bracing piece, the rack is connected with first gear engagement, the support frame sets up in one side of die cavity fixed plate, the inside wall fixed connection of first gear is in the outside middle part of first pivot, the upper and lower both ends of first pivot are passed through the bearing and are rotated and connect on the support frame, the quantity of second gear and connecting piece is two, two the symmetrical fixed connection of second gear is in both sides about the outside of first pivot, the second gear is connected with the connecting piece transmission.
Preferably, the connecting piece comprises a second rotating shaft, a ratchet mechanism, a third gear, a turntable, a rod body and a connecting rod;
the third gear is meshed with the second gear, and the third gear is connected with the second rotating shaft through a ratchet mechanism.
Preferably, carousel fixed connection is in the top of second pivot, the top one side fixedly connected with body of rod of carousel, the body of rod passes through the connecting rod and is articulated with the push rod.
Preferably, the limiting seat is fixedly connected to the supporting frame, a sliding groove for sliding the push rod is formed in the top of one side of the limiting seat, and the push rod slides in the sliding groove.
Preferably, height adjusting mechanism includes threaded rod and base, the quantity of threaded rod is four, four the threaded rod all runs through the push rod, and the outside of threaded rod is located the equal threaded connection in upper and lower both sides that pastes tight push rod and has the nut, the top of threaded rod and the bottom fixed connection of base.
Preferably, the upper surface of the base is provided with a limiting groove, and the second guide rod slides in the limiting groove.
Preferably, the upper surface of the cutter is provided with a slope with an included angle of 10-15 degrees with the horizontal plane, the second guide rod is obliquely arranged with an included angle of 15-20 degrees with the vertical plane, the upper surface of the cutter is connected with a guide plate through a second spring, and one side of the guide plate is hinged with the blade part of the cutter.
The invention has the beneficial effects that:
1. when the top and bottom redundant raw materials of the irregular plastic parison are cut, the radian of the top and bottom of the plastic parison is self-adapted through the elastic piece, the cutter is ensured to be always attached to the top and bottom of the plastic parison, and in the demolding process, the cutter cuts the redundant raw materials at the top and bottom of the plastic parison without manual cutting, so that the expenditure of extra labor force is reduced;
2. when the redundant raw materials at the top and the bottom of the plastic parison are cut off, the driving mechanism driving the die cavity fixing plate to move is used as the driving force, the driving force driving the die cavity fixing plate to move is transmitted to the elastic cutting mechanism through the transmission mechanism, so that the power for cutting off the raw materials is realized, the two die cavities still have the clamping effect on a plastic piece before demoulding is finished, an additional clamp is not needed to be used for clamping the plastic product, and the energy waste is reduced;
3. before the redundant raw materials at the top and the bottom of the plastic parison are cut off, the height of the cutter is adjusted by the height adjusting mechanism, so that the cutting device is suitable for cutting off the redundant raw materials at the top and the bottom of various plastic parisons, and the application range is wide;
4. according to the invention, the connecting piece is arranged, the ratchet mechanism in the connecting piece is configured not to drive the second rotating shaft to rotate when rotating anticlockwise, the second rotating shaft is ready in situ, due to the one-way driving capability of the ratchet mechanism, the elastic cutting mechanism can be driven to cut off the redundant raw materials at the top and the bottom of the plastic blank only when demoulding is in operation, and the elastic cutting mechanism does not work in the mould closing process, so that the smooth operation of cutting operation is ensured, and the condition that the cutter is damaged due to the fact that the cutter impacts a mould cavity fixing plate is avoided;
5. according to the invention, the guide plate is arranged, when the cutter touches the plastic piece, the guide plate is firstly contacted with the plastic piece, the guide plate is integrally arranged in a wedge shape, the bottom of one side of the guide plate is provided with the second spring, when the guide plate is contacted with the plastic piece, the guide plate can be turned over, part of pressure contacted with the plastic piece is transmitted to the connecting plate while the guide plate is turned over, the connecting plate extrudes the elastic piece, the elastic piece moves downwards, so that the cutter continues to move towards the plastic piece while moving downwards, and the cutting work of redundant raw materials is started, so that the adaptability is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a blow molding machine suitable for cutting irregular plastic products according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another view angle of a blow molding machine suitable for cutting irregular plastic products according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a main body of a blow molding machine according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a transmission mechanism according to an embodiment of the present invention;
FIG. 5 is a first schematic view of the connection of the second gear with the connecting member and the push rod according to the embodiment of the present invention;
FIG. 6 is a second schematic view of the second gear, the connecting member and the push rod according to the second embodiment of the present invention;
FIG. 7 is a third schematic view of the connection of the second gear with the connecting member and the push rod according to the embodiment of the present invention;
FIG. 8 is a schematic structural diagram of an elastic cutting mechanism according to an embodiment of the present invention;
FIG. 9 is a schematic view illustrating the direction of movement of the resilient cutting mechanism to the plastic part according to the embodiment of the present invention;
FIG. 10 is a schematic view of the direction of movement of the guide plate to the plastic part according to the embodiment of the present invention;
FIG. 11 is a graph showing the relationship between the movement path of the cutter and the cutting progress of the plastic part and the mold closing and releasing of the mold in accordance with the embodiment of the present invention.
Description of the reference numerals:
10-a blow molding machine body; 11-a mold cavity fixing plate; 12-a mould cavity; 13-a base; 14-a screw rod module; 141-a motor; 142-a threaded sleeve; 143-bidirectional lead screw; 15-a first guide bar; 16-a guide sleeve;
20-a transmission mechanism; 21-a support bar; 22-a rack; 23-a first gear; 24-a support frame; 25-a first shaft; 26-a second gear; 27-a connector; 271-a second rotating shaft; 272-a ratchet mechanism; 273-third gear; 274-a turntable; 275-rod body; 276-a connecting rod;
30-a resilient cutting mechanism; 31-a push rod; 32-a limiting seat; 33-a height adjustment mechanism; 331-threaded rod; 332-a base; 34-an elastic cutter; 341-second guide bar; 342-a connecting plate; 343-an elastic member; 344-a cutter; 3441. a slope; 3442. a guide plate; 345-spacing groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment is as follows:
as shown in fig. 1-10, the present invention provides a blow molding machine suitable for cutting irregular shaped plastic products, comprising:
a main body 10 of the blow molding machine, as shown in fig. 1-3, the main body 10 of the blow molding machine includes two opposite cavity fixing plates 11, a cavity 12 installed on the cavity fixing plates 11, a screw module 14 driving the two cavity fixing plates 11 to move relatively or in opposite directions, and a base 13 supporting the screw module 14;
more specifically, the technical scheme is as follows: as shown in fig. 3, the screw module 14 includes a motor 141, thread sleeves 142 and a bidirectional screw 143, the motor 141 is installed on one side of the base 13, one end of the bidirectional screw 143 is fixedly connected with an output shaft of the motor 141, the other end of the bidirectional screw 143 is rotatably connected to one side of the motor 141 through a bearing, the number of the thread sleeves 142 is two, the two thread sleeves 142 are respectively welded to one side of the bottoms of the two cavity fixing plates 11, and the inner side walls of the thread sleeves 142 are in threaded connection with the outer sides of the bidirectional screw 143;
in the process of blowing by a blow molding machine, the output shaft of the motor 141 rotates clockwise to drive the bidirectional screw rod 143 to rotate clockwise, wherein the threads on the bidirectional screw rod 143 are divided into left-handed threads and right-handed threads, and the threads on the inner sides of the two thread sleeves 142 respectively correspond to the threads on the bidirectional screw rod 143 in threaded connection with the two thread sleeves, so that when the bidirectional screw rod 143 rotates clockwise along with the output shaft of the motor 141, the two cavity fixing plates 11 can move in the adjacent direction along with the thread sleeves 142 in cooperation with the cavity 12, thereby completing the mold closing work, and then performing the blow molding work, after the blow molding work is completed, the output shaft of the motor 141 rotates counterclockwise to drive the bidirectional screw rod 143 to rotate counterclockwise, so as to drive the two thread sleeves 142 to move in the opposite direction, thereby completing the demolding work;
meanwhile, as a supplement to the above technical scheme: as shown in fig. 1-3, the blow molder body 10 further includes a first guide bar 15 and a guide sleeve 16;
the number of the guide sleeves 16 is two, the two guide sleeves 16 are welded to the other sides of the bottoms of the two cavity fixing plates 11 respectively, the first guide rod 15 is fixedly connected to one side of the base 13, and the inner side of the guide sleeve 16 slides on the outer side of the first guide rod 15, so that a sliding support is provided for the cavity fixing plate 11 in the process that the threaded sleeve 142 bears the motion of the cavity fixing plate 11.
The blow molding machine further comprises a transmission mechanism 20, as shown in fig. 1-2 and fig. 4-7, wherein the transmission mechanism 20 is used for driving the elastic cutting mechanism 30 to move when the two cavity fixing plates 11 move;
the transmission mechanism 20 comprises a support rod 21, a rack 22, a first gear 23, a support frame 24, a first rotating shaft 25, a second gear 26 and a connecting piece 27;
the supporting rod 21 is welded on one side of one die cavity fixing plate 11, the rack 22 is welded on one end of the supporting rod 21 far away from the die cavity fixing plate 11, the rack 22 is meshed with the first gear 23, the supporting frame 24 is arranged on one side of the die cavity fixing plate 11, the inner side wall of the first gear 23 is fixedly connected to the middle part of the outer side of the first rotating shaft 25, the upper end and the lower end of the first rotating shaft 25 are rotatably connected onto the supporting frame 24 through bearings, the number of the second gears 26 and the number of the connecting pieces 27 are two, the two second gears 26 are symmetrically and fixedly connected to the upper side and the lower side of the outer part of the first rotating shaft 25, and the second gears 26 are in transmission connection with the connecting pieces 27;
through adopting above-mentioned technical scheme, can be at the in-process of die cavity fixed plate 11 motion, drive rack 22 through bracing piece 21 and move, because rack 22 and first gear 23 are the engaged state, consequently, first gear 23 follows the motion of rack 22 and carries out clockwise rotation, drives the first pivot 25 rotation fixed with first gear 23, and first pivot 25 drives second gear 26 clockwise rotation, and second gear 26 transmission connecting piece 27.
As a further complement to the above technical solution: as shown in fig. 5-7, the connecting member 27 includes a second rotating shaft 271, a ratchet mechanism 272, a third gear 273, a rotating disc 274, a rod 275 and a connecting rod 276;
the third gear 273 is engaged with the second gear 26, and the third gear 273 is connected with the second rotating shaft 271 through the ratchet mechanism 272;
when the second gear 26 rotates clockwise, the third gear 273 is driven to rotate counterclockwise, a ratchet mechanism 272 is arranged inside the third gear 273, the ratchet mechanism 272 is configured not to drive the second rotating shaft 271 to rotate when rotating counterclockwise, and the second rotating shaft 271 stands by in place;
due to the one-way driving capability of the ratchet mechanism 272, in the demolding process, when the output shaft of the motor 141 rotates counterclockwise, the second gear 26 is driven to rotate counterclockwise (the driving principle is as described above), when the second gear 26 rotates counterclockwise, the third gear 273 rotates clockwise, the ratchet mechanism 272 drives the second rotating shaft 271 to rotate, the rotating disc 274 is fixedly connected to the top of the second rotating shaft 271, one side of the top of the rotating disc 274 is fixedly connected with the rod body 275, the rod body 275 is hinged to the push rod 31 through the connecting rod 276, and the second rotating shaft 271 drives the rotating disc 274 to rotate the rotating disc 274 to drive the rod body 275 to reciprocate;
as a further complement to the above workflow: when the rotating disc 274 drives the rod 275 to move, the rod 275 and the push rod 31 are hinged through the connecting rod 276, and the rod 275 makes a circular motion, thereby drawing or pushing the push rod 31 to make a reciprocating motion.
The blow molding machine also comprises an elastic cutting mechanism 30, wherein the elastic cutting mechanism 30 comprises a push rod 31 which moves linearly, a limiting seat 32 which limits the moving direction of the push rod 31, a height adjusting mechanism 33 which adjusts the cutting height and an elastic cutter 34 which is suitable for arc-shaped cutting;
the elastic cutter 34 includes a second guide rod 341, a connection plate 342, an elastic member 343, a cutter 344, and a stopper groove 345;
the connecting plate 342 is fixedly connected to the top end of the second guiding rod 341, the upper surface of the height adjusting mechanism 33 is fixedly connected with an elastic member 343, the top end of the elastic member 343 is fixedly connected to the lower surface of the connecting plate 342, and the cutter 344 is fixedly connected to the upper surface of the connecting plate 342, wherein the elastic member 343 is located on the side close to the cutting edge of the cutter 344, when the rod 275 makes a circular motion, first, the rod 275 first moves in the direction of approaching the limit seat 32, in this process, the rod 275 pushes the push rod 31 to move in the direction of approaching the plastic piece through the connecting rod 276, the limit seat 32 is fixedly connected to the supporting frame 24, a sliding groove for the push rod 31 to slide is formed at the top of one side of the limit seat 32, the push rod 31 slides in the sliding groove, when the push rod 31 moves, the height adjusting mechanism 33 is pushed to move, the height adjusting mechanism 33 includes a threaded rod 331 and a base 332, the number of the threaded rods 331 is four, the four threaded rods 331 penetrate through the push rod 31, nuts are screwed to the two sides of the outer side of the push rod 331, nuts are tightly attached to the upper and lower sides of the push rod 31, the top of the threaded rod 331 is fixedly connected to the bottom of the base 332, the height adjusting mechanism 33, the elastic member 331 is preferably, the elastic member 343, the damping pad 343, and the connecting plate 343 can drive the cutter to move to remove the bottom of the cutter 343, and the plastic piece 343, so that the cutter 343, and the bottom of the plastic piece 343, and the cutting arc-shaped plastic piece 343, and the cutting plate 343 can be convenient for removing the cutting tool, and the cutting tool for removing the surplus plastic piece 343;
meanwhile, in order to ensure the movement track of the cutter 342 when the redundant raw materials of plastic parts are removed, the upper surface of the base 332 is provided with a limiting groove 345, and the second guide rod 341 slides inside the limiting groove 345 so as to limit the movement track of the cutter 342;
on the basis of the above technical solution, as shown in fig. 9-10, in order to prevent the cutting blade 344 from failing to perform the cutting operation due to the horizontal height of the cutting blade 344 exceeding the bottom of the plastic part when the cutting blade 344 comes into contact with the plastic part, the upper surface of the cutting blade 344 is provided with a slope 3441 having an angle of 10-15 ° with the horizontal plane, the second guide rod 341 is inclined at an angle of 15-20 ° with the vertical plane, the upper surface of the cutting blade 344 is connected with a guide plate 3442 through a second spring, one side of the guide plate 3442 is hinged to the blade portion of the cutting blade 344, when the cutting blade 344 touches the plastic part, the guide plate 3442 first contacts the plastic part, since the guide plate 3442 is integrally arranged in a wedge shape (as shown in fig. 10), and the second spring is provided at the bottom of one side of the guide plate 3442, when the guide plate 3442 moves towards the E direction and contacts the plastic part, the W side of the guide plate 3442 is turned over towards the S direction, and when the guide plate 3442 contacts the plastic part, a part of the guide plate is turned over, a part of the pressure contacting the connecting plate 342 is transmitted to the connecting plate 342, and the elastic part 343, the connecting plate 343, and the elastic part 343 moves towards the S direction, while the cutting blade 344 continues to remove the working direction.
When the blow molding machine is used, the output shaft of the motor 141 rotates clockwise to drive the bidirectional screw rod 143 to rotate clockwise, the two cavity fixing plates 11 cooperate with the cavity 12 to move in adjacent directions along with the thread sleeves 142, so that the mold closing work is completed, and then the blow molding work is performed, after the blow molding work is completed, the output shaft of the motor 141 rotates counterclockwise to drive the bidirectional screw rod 143 to rotate counterclockwise, so as to drive the two thread sleeves 142 to move in opposite directions, so as to drive the two cavity fixing plates 11 to move in opposite directions, and meanwhile, when the cavity fixing plates 11 move, the rack 22 is driven by the support rod 21 to move, because the rack 22 and the first gear 23 are in a meshed state, the first gear 23 rotates along with the movement of the rack 22 to drive the first rotating shaft 25 fixed with the first gear 23 to rotate, the first rotating shaft 25 drives the second gear 26 to rotate, when the second gear 26 rotates counterclockwise, the third gear rotates clockwise, the second rotating shaft 271 is driven by the ratchet mechanism 272 to rotate, the rotating disc 274 is fixedly connected to the top of the second rotating shaft 271, one side of the top of the rotating disc 274 is fixedly connected with a rod body 275, the rod body 275 is hinged to the push rod 31 by the connecting rod 276, and the rotating disc 275 drives the rotating disc 273 to rotate by the rotating disc 274 to reciprocate;
as the rod 275 makes a circular motion: firstly, the rod body 275 firstly moves towards the direction of approaching the limiting seat 32, in the process, the rod body 275 pushes the push rod 31 to move towards the direction of approaching the plastic piece through the connecting rod 276, the limiting seat 32 is fixedly connected to the support frame 24, a sliding groove for the sliding of the push rod 31 is formed in the top of one side of the limiting seat 32, the push rod 31 slides in the sliding groove, when the push rod 31 moves, the threaded rod 331 is pushed to move, the threaded rod 331 drives the base 332 to move, the base 332 drives the connecting plate 343 to move through the elastic piece 343, and the connecting plate 343 drives the cutter 344 to move, because of the retractility of the elastic piece 343, the cutter 342 can adapt to the arc-shaped surfaces of the bottom and the top of the plastic piece, so that redundant raw materials at the bottom and the top of the plastic piece can be cut off, and the demoulding work is completed;
in the demolding process, as shown in fig. 11, when the demolding operation of the two mold cavity fixing plates 11 is performed to a half, the cutting knife 344 moves to one side of the plastic part far away from the transmission mechanism 20, the cutting progress of the redundant raw materials of the plastic part is completed by 100%, and when the demolding operation of the mold cavity fixing plates 11 is completed, the cutting knife 344 resets and returns to the original position.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A blow molding machine adapted for the cutting of irregular shaped plastic articles, comprising:
the blow molding machine main part (10), the blow molding machine main part (10) include two relative die cavity fixed plates (11) that set up, install die cavity (12) on die cavity fixed plate (11), drive two lead screw module (14) that die cavity fixed plate (11) move relatively or opposite direction and to base (13) that lead screw module (14) supported, and:
a transmission mechanism (20), the transmission mechanism (20) is used for driving the elastic cutting mechanism (30) to move when the two cavity fixing plates (11) move, and:
the elastic cutting mechanism (30) comprises a push rod (31) which moves linearly, a limiting seat (32) which limits the moving direction of the push rod (31), a height adjusting mechanism (33) which adjusts the cutting height and an elastic cutter (34) which is suitable for arc-shaped cutting;
the elastic cutter (34) comprises a second guide rod (341), a connecting plate (342), an elastic piece (343), a cutter (344) and a limiting groove (345);
the connecting plate (342) is fixedly connected to the top end of the second guide rod (341), the upper surface of the height adjusting mechanism (33) is fixedly connected with an elastic piece (343), the top end of the elastic piece (343) is fixedly connected with the lower surface of the connecting plate (342), and the cutting knife (344) is fixedly connected to the upper surface of the connecting plate (342).
2. The blow molding machine suitable for cutting irregular plastic products according to claim 1, wherein the screw rod module (14) comprises a motor (141), two screw sleeves (142) and two-way screw rods (143), the motor (141) is installed on one side of the base (13), one end of each two-way screw rod (143) is fixedly connected with an output shaft of the motor (141), the other end of each two-way screw rod (143) is rotatably connected to one side of the motor (141) through a bearing, the number of the screw sleeves (142) is two, the two screw sleeves (142) are respectively welded to one side of the bottoms of the two cavity fixing plates (11), and the inner side walls of the screw sleeves (142) are in threaded connection with the outer sides of the two-way screw rods (143).
3. A blowing machine adapted for the cutting of irregular shaped plastic articles, as claimed in claim 2, characterized in that said blowing machine body (10) further comprises a first guide rod (15) and a guide sleeve (16);
the number of the guide sleeves (16) is two, the two guide sleeves (16) are welded to the other sides of the bottoms of the two die cavity fixing plates (11) respectively, the first guide rod (15) is fixedly connected to one side of the base (13), and the inner side of each guide sleeve (16) slides to the outer side of the corresponding first guide rod (15).
4. A blowing machine adapted to the cutting of irregular plastic articles, as claimed in claim 1, characterized in that said transmission (20) comprises a support bar (21), a rack (22), a first gear (23), a support frame (24), a first shaft (25), a second gear (26) and a connecting piece (27);
the utility model discloses a die cavity fixing device, including bracing piece (21), rack (22), support frame (24), support piece (26) and connecting piece (27), bracing piece (21) welds in one side of a die cavity fixing plate (11), rack (22) welds in the one end of keeping away from die cavity fixing plate (11) in bracing piece (21), rack (22) are connected with first gear (23) meshing, support frame (24) set up in one side of die cavity fixing plate (11), the inside wall fixed connection of first gear (23) is in the outside middle part of first pivot (25), the upper and lower both ends of first pivot (25) are passed through the bearing and are rotated and are connected on support frame (24), the quantity of second gear (26) and connecting piece (27) is two second gear (26) symmetry fixed connection is in the outside upper and lower both sides of first pivot (25), second gear (26) and connecting piece (27) transmission are connected.
5. A blowing machine adapted to the cutting of irregular shaped plastic articles, according to claim 4, characterized in that said coupling (27) comprises a second shaft (271), a ratchet mechanism (272), a third gear (273), a turntable (274), a rod (275) and a connecting rod (276);
the third gear (273) is in meshed connection with the second gear (26), and the third gear (273) is connected with the second rotating shaft (271) through a ratchet mechanism (272).
6. A blowing machine suitable for the cutting of irregular plastic products according to claim 5, characterized in that the turntable (274) is fixedly connected to the top of the second shaft (271), a rod body (275) is fixedly connected to one side of the top of the turntable (274), and the rod body (275) is hinged to the push rod (31) through a connecting rod (276).
7. The blow molding machine suitable for cutting irregular plastic products according to claim 4, wherein the limiting seat (32) is fixedly connected to the supporting frame (24), a sliding groove for sliding the push rod (31) is formed at the top of one side of the limiting seat (32), and the push rod (31) slides in the sliding groove.
8. The blow molding machine suitable for cutting irregular plastic products as claimed in claim 1, wherein the height adjusting mechanism (33) comprises four threaded rods (331) and a base (332), the number of the threaded rods (331) is four, the four threaded rods (331) all penetrate through the push rod (31), nuts are screwed on the upper side and the lower side of the outer side of each threaded rod (331) close to the push rod (31), and the top of each threaded rod (331) is fixedly connected with the bottom of the base (332).
9. The blow molding machine for cutting irregular shaped plastic products as claimed in claim 8, wherein said base (332) has a limiting groove (345) formed on the upper surface thereof, and said second guiding rod (341) slides inside the limiting groove (345).
10. A blow molding machine suitable for cutting irregular plastic products as claimed in claim 1, wherein the upper surface of said cutting knife (344) is provided with a slope (3441) having an angle of 10-15 ° with the horizontal plane, said second guiding rod (341) is disposed obliquely having an angle of 15-20 ° with the vertical plane, the upper surface of said cutting knife (344) is connected with a guiding plate (3442) by a second spring, and one side of said guiding plate (3442) is hinged with the edge portion of the cutting knife (344).
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| CN115782134B (en) | 2023-12-05 |
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