CN215242427U - High-speed low-inertia structure applied to injection molding machine and injection molding machine with structure - Google Patents

Abstract

The utility model belongs to the technical field of the injection molding machine, especially, relate to a be applied to high-speed low inertia structure of injection molding machine and have injection molding machine of this structure. The utility model discloses, produce big removal inertial problem during to prior art medium-high speed injection, provide a be applied to the high-speed low inertia structure of injection molding machine and have the injection molding machine of this structure, the on-line screen storage device comprises a base, fixed front bezel and the back plate of being provided with on the base, the injection molding feed cylinder is connected on the front bezel, is equipped with the removal subassembly between front bezel and the back plate, is connected with the feed cylinder screw rod on the removal subassembly, and the feed cylinder screw rod is kept away from the one end of removing the subassembly and is extended to in the injection molding feed cylinder, still includes the charge door that is linked together with injection molding feed cylinder inside, and the charge door setting is on injection molding feed cylinder or front bezel. The utility model discloses a feed cylinder screw rod is connected on the removal subassembly that can remove alone, and the back plate can not remove along with the feed cylinder screw rod when the injection is guaranteed to the fixed setting of back plate to reduced and removed inertia, promoted the life and the precision of moulding plastics of injection molding machine.

Description

High-speed low-inertia structure applied to injection molding machine and injection molding machine with structure

Technical Field

The utility model belongs to the technical field of the injection molding machine, especially, relate to a be applied to high-speed low inertia structure of injection molding machine and have injection molding machine of this structure.

Background

The injection molding machine extrudes PP, PE, PET, ABS, PVC and other plastics through a charging barrel screw, heats and plasticizes the plastics, and then injects the plastics into a mold to form different plastic products.

Different products are finally produced by plastics in the charging barrel screw through different injection speeds and different injection pressures, high-speed stable injection of the injection platform part is one of key processes, but a servo motor for storing materials and an injection platform moving plate are fixed together by the traditional injection platform part, so that large moving inertia is generated during high-speed injection, the power consumption of the machine is increased, and the use precision of the machine is also reduced.

For example, the chinese utility model patent discloses a novel injection mechanism of injection molding machine [ application number: 201721779697.2], the utility model discloses a front bezel, the back seat on including the base and being located the base, install injection cylinder group, front plate cylinder group on the front bezel, install hydraulic motor, injection piston rod on the back seat, injection piston rod and injection cylinder group cooperation are connected, the base both sides are equipped with one-level linear guide, install the sliding seat with one-level linear guide sliding fit on the base, the front bezel is installed at the sliding seat front end, the sliding seat rear end sets up the bearing portion that upwards lifts, be equipped with second grade linear guide on the bearing portion, the back seat is installed on the bearing portion of sliding seat rear end and with second grade linear guide sliding fit.

Although the utility model discloses a although having reduced back seat self weight, in its injection process, the back seat still need remove along with the feed cylinder screw rod, so produce big removal inertia when having above-mentioned injection, increased the consumption of machine, also reduced the use accuracy's of machine problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide a remove the less high-speed low inertia structure of being applied to injection molding machine of inertia.

Another object of the present invention is to solve the above problems, and to provide an injection molding machine having a high-speed low-inertia structure applied to the injection molding machine with a small moving inertia.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

the utility model provides a be applied to high-speed low inertia structure of injection molding machine, includes the base, fixed front bezel and the back plate of being provided with on the base, the feed cylinder of moulding plastics is connected on the front bezel, be equipped with between front bezel and the back plate and can take place the gliding removal subassembly of relative base for the drive removes the actuating mechanism setting that the subassembly takes place to be close to front bezel or back plate and/or base, be connected with the feed cylinder screw rod on the removal subassembly, the one end that the removal subassembly was kept away from to the feed cylinder screw rod extends to in the injection plastics section of thick bamboo, still includes the charge door that is linked together with injection plastics section of thick bamboo is inside, the charge door sets up on injection plastics section of thick bamboo or front bezel, guide structure still has between front bezel and the back plate, guide structure fixed connection is on the base, removes subassembly and guide structure sliding connection.

In foretell high-speed low inertia structure of being applied to injection molding machine, actuating mechanism including can drive the storage actuating mechanism that the removal subassembly is close to the back plate and can drive the actuating mechanism that moulds plastics that the removal subassembly is close to the front bezel, storage actuating mechanism sets up on the back plate, the actuating mechanism setting of moulding plastics is on the front bezel.

In foretell high-speed low inertia structure of being applied to injection molding machine, the removal subassembly includes the movable plate and sets up the connecting axle on the movable plate, the connecting axle passes through the bearing and rotates with the movable plate to be connected, the one end and the feed cylinder screw rod fixed connection of connecting axle, the other end and the fixed axial sliding connection of storage actuating mechanism's output circumference, feed cylinder screw rod surface has the screw thread.

In foretell low inertia structure of high speed of being applied to injection molding machine, storage actuating mechanism includes storage motor and the reduction gear that the drive is connected, reduction gear fixed connection is on the back plate, and the output shaft is connected with the reduction gear drive, the one end that the reduction gear was kept away from to the output shaft is equipped with the external splines, the one end that the connecting axle is close to the output shaft is equipped with the internal splines, and the internal splines mutually supports with the external splines.

In foretell high-speed low inertia structure of being applied to injection molding machine, the back plate includes fixed connection's installed part and a lubricated section of thick bamboo, installed part and base fixed connection, have lubricated cavity in the lubricated section of thick bamboo, set up the lubrication hole on the lubricated section of thick bamboo and be linked together with lubricated cavity, connecting axle and output shaft extend to in the lubricated cavity from the both ends of lubricated section of thick bamboo respectively, the connecting axle passes through first uide bushing and lubricated section of thick bamboo sealing connection, the output shaft passes through second uide bushing and lubricated section of thick bamboo sealing connection.

In foretell high-speed low inertia structure of being applied to injection molding machine, the actuating mechanism that moulds plastics includes the driving motor that moulds plastics of fixed connection on the front bezel, and the lead screw drive is connected on the driving motor that moulds plastics, the lead screw is kept away from the one end of moulding plastics driving motor and is run through the removal subassembly, the actuating mechanism that moulds plastics still includes the sliding sleeve with lead screw threaded connection, and the drive lead screw rotates and to make the sliding sleeve press to establish on the surface that the removal subassembly is close to back plate one side.

In foretell high-speed low inertia structure of being applied to injection molding machine, annotate a plastic cylinder and have the barrel of the cavity of moulding plastics including inside, the one end that the removal subassembly was kept away from to the barrel is equipped with the nozzle, the nozzle is linked together with the cavity of moulding plastics, the one end of feed cylinder screw rod extends to in the cavity of moulding plastics, still overlap on the feed cylinder screw rod and be equipped with the non return ring subassembly that prevents the molten plastic and flow against the current, non return ring subassembly and feed cylinder screw rod swing joint.

In foretell high-speed low inertia structure of being applied to injection molding machine, the ring body on the feed cylinder screw rod is established including the cover to the non-return ring subassembly, ring body internal surface has a plurality of to the inside sunken guide way of ring body, guide way and the guide block sliding connection who protrudes feed cylinder screw rod surface, the one end surface that the nozzle was kept away from to the ring body has the sealed recess to the inside sunken of ring body, and the feed cylinder screw rod is equipped with the sealed lug with sealed recess looks adaptation, sealed recess bottom is arc, a plurality of driving plates of ring body internal surface fixedly connected with, the axial lead direction spiral extension of driving plate along ring body, driving plate and guide way dislocation set.

In foretell high-speed low inertia structure of being applied to injection molding machine, still include the mounting panel, be equipped with the guide rail on the mounting panel, slider sliding connection is on the guide rail, the slider is kept away from guide rail side surface and base fixed connection, drives actuating cylinder fixed mounting on the mounting panel, and actuating shaft connection drives actuating cylinder on, the one end that actuating cylinder was kept away from to the drive shaft is connected with the base.

An injection molding machine comprises an injection molding machine shell, wherein the high-speed low-inertia structure applied to the injection molding machine is arranged in the injection molding machine shell.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses a feed cylinder screw rod is connected on the removal subassembly that can remove alone, and the back plate can not remove along with the feed cylinder screw rod when the injection is guaranteed to the fixed setting of back plate to reduced and removed inertia, promoted the life and the precision of moulding plastics of injection molding machine.

2. The utility model discloses a front bezel is also fixed to be set up on the base, and the storage process also only needs to remove the removal subassembly to reduced and removed inertia, guaranteed to realize steady storage.

3. The utility model discloses be equipped with a lubricated section of thick bamboo on the backplate, synthetic lubricated cavity is enclosed jointly to first uide bushing, second uide bushing and a lubricated section of thick bamboo, and the satisfying that can be better takes place to relapse relative movement's connecting axle and the lubricated demand between the output shaft along the straight line in transmission process, and the problem that wearing and tearing are too fast when effectively preventing the transmission has had very high promotion to the live time of complete machine.

4. The utility model discloses a non-return ring tip has sealed recess, can form the step form sealing face with the sealed lug looks adaptation of feed cylinder screw rod, has better sealed effect, and melting plastic is against the current when can effectively preventing to inject.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic structural view of a check ring assembly;

in the figure: the injection molding machine comprises a base 1, a front plate 2, a rear plate 3, an injection molding material cylinder 4, a moving assembly 5, a material cylinder screw 6, a material storage driving mechanism 7, an injection molding driving mechanism 8, a mounting plate 9, a guide rail 10, a sliding block 11, a driving cylinder 12, a driving shaft 13, a mounting part 31, a lubricating cylinder 32, a lubricating cavity 33, a lubricating hole 34, a first guide sleeve 35, a second guide sleeve 36, an injection molding cavity 41, a nozzle 42, a check ring assembly 43, a cylinder body 44, a moving plate 51, a connecting shaft 52, a bearing 53, a thread 61, a material storage motor 71, a speed reducer 72, an output shaft 73, an injection molding driving motor 81, a screw rod 82, a sliding sleeve 83, a driving mechanism 100, a port 200, a ring body 431, a guide groove 432, a sealing groove 433 and a driving sheet 434.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Example 1

The embodiment provides a high-speed low-inertia structure applied to an injection molding machine, which is shown in fig. 1 and 2, and includes a base 1, including the base 1, a front plate 2 and a rear plate 3 are fixedly disposed on the base 1, an injection molding material cylinder 4 is connected to the front plate 2, a moving assembly 5 capable of sliding relative to the base 1 is disposed between the front plate 2 and the rear plate 3, a driving mechanism 100 for driving the moving assembly 5 to move close to the front plate 2 or the rear plate 3 is disposed on the front plate 2, the rear plate 3 and/or the base 1, i.e. the driving mechanism 100 may be disposed at least at one of the three positions of the front plate 2, the rear plate 3 and the base 1, and may of course be disposed at multiple positions, for example, in the present invention, the driving mechanism 100 includes a storage driving mechanism 7 capable of driving the moving assembly 5 to be close to the rear plate 3 and an injection molding driving mechanism 8 capable of driving the moving assembly 5 to be close to the front plate 2, the storage driving mechanism 7 is arranged on the rear plate 3, and the injection driving mechanism 8 is arranged on the front plate 2, namely the driving mechanism 100 is arranged at two positions of the front plate 2 and the rear plate 3. The injection molding machine is characterized in that a material barrel screw rod 6 is connected to the moving assembly 5, one end, far away from the moving assembly 5, of the material barrel screw rod 6 extends into the injection molding barrel 4, the injection molding barrel further comprises a feeding opening 200 communicated with the inside of the injection molding barrel 4, and the feeding opening 200 is arranged on the injection molding barrel 4 or the front plate 2.

The utility model discloses, during the use, the raw materials is added through charge door 200 and is annotated plastic barrel 4, and the removal that takes place to be close to back plate 3 is removed in 7 drives moving assembly 5 of storage actuating mechanism and feed cylinder screw rod 6, and the removal of feed cylinder screw rod 6 realizes annotating the storage in the plastic barrel 4, and during moulding plastics, 8 promotion moving assembly 5 that mould plastics take place to be close to the removal of front bezel 2 to drive feed cylinder screw rod 6 and take place synchronous removal so that the melting plastic blowout in the plastic barrel 4 of moulding plastics, the action of accomplishing moulding plastics. The event the utility model discloses a charging barrel screw rod 6 is connected on the removal subassembly 5 that can remove alone, and the back plate can not remove along with charging barrel screw rod 6 when the fixed setting of back plate 3 guarantees the injection on base 1 to reduced and removed inertia, promoted the life and the precision of moulding plastics of injection molding machine. And simultaneously, the utility model discloses a front bezel 2 is also fixed to be set up on base 1, and the storage process also only needs to remove removal subassembly 5 to reduced and removed inertia, guaranteed to realize steady storage.

Combine fig. 1 and fig. 2 to show, it includes movable plate 51 and the connecting axle 52 of setting on movable plate 51 to remove subassembly 5, connecting axle 52 rotates with movable plate 51 through bearing 53 to be connected, the one end and the feed cylinder screw 6 fixed connection of connecting axle 52, the other end and the fixed axial sliding connection of storage actuating mechanism 7's output circumference, can drive connecting axle 52 when the output circumferential direction of storage actuating mechanism 7 promptly takes place synchronous circumferential direction, but the slip along the axial lead direction is taken place to the output of storage actuating mechanism 7 still relatively to connecting axle 52. This connection may be by a spline connection or by other prior art connections. The barrel screw 6 has threads 61 on its surface. When the connecting shaft 52 drives the barrel screw 6 to rotate in a certain direction, the surface of the barrel screw 6 is provided with the threads 61, so that the material inside the injection molding barrel 4 is sheared, the barrel screw 6 moves close to the rear plate 3 along the axial lead, and the connecting shaft 52 and the moving plate 51 are driven to move close to the rear plate 3.

Preferably, the movable plate 51 is connected with the base 1 through a guide structure in a guiding manner, specifically, the guide structure comprises a guide sliding block and a guide sliding rail, the guide sliding rail is fixedly connected to the base 1, the guide sliding block is fixedly connected to the movable plate 51, and the guide sliding block is slidably connected to the guide sliding rail. The guide slider and the guide slide rail are matched with each other to guide the moving direction of the moving plate 51.

The guiding structure may also adopt other specific structures to realize the guiding function, for example, at least one guide rod is further disposed between the front plate 2 and the rear plate 3, two ends of the guide rod are respectively and fixedly connected to the front plate 2 and the rear plate 3, the guide rod penetrates through the moving plate 51, and the moving plate 51 is slidably connected with the guide rod. When the moving plate 51 moves, the moving plate moves along the axis of the guide rod, thereby guiding the moving direction of the moving plate 51.

Referring to fig. 1 and 2, the rear plate 3 includes a mounting member 31 and a lubricating cylinder 32, the mounting member 31 is fixedly connected to the base 1, the lubricating cylinder 32 has a lubricating cavity 33 therein, a lubricating hole 34 formed in the lubricating cylinder 32 is communicated with the lubricating cavity 33, the connecting shaft 52 and the output shaft 73 respectively extend from two ends of the lubricating cylinder 32 to the lubricating cavity 33, the connecting shaft 52 is hermetically connected to the lubricating cylinder 32 through a first guide sleeve 35, and the output shaft 73 is hermetically connected to the lubricating cylinder 32 through a second guide sleeve 36. The utility model discloses be equipped with a lubricated section of thick bamboo 32 on backplate 3, first uide bushing 35, second uide bushing 36 and a lubricated section of thick bamboo 32 enclose synthetic lubricated cavity 33 jointly, and the lubricant can follow and add to lubricated cavity 33 in the lubrication hole 34. Since the connecting shaft 52 and the output shaft 73 have relative sliding in the direction of the axis during use, a good lubricating condition is required. Therefore, the lubricating cavity 33 capable of containing lubricating media is independently arranged, the lubricating requirement between the connecting shaft 52 and the output shaft 73 which move relatively repeatedly along a straight line in the transmission process can be well met, the problem of too fast abrasion in transmission is effectively solved, and the service life of the whole machine is prolonged greatly.

As shown in fig. 2, the stock driving mechanism 7 includes a stock motor 71 and a speed reducer 72 which are in driving connection, the speed reducer 72 is fixedly connected to the rear plate 3, an output shaft 73 is in driving connection with the speed reducer 72, one end of the output shaft 73 far away from the speed reducer 72 is provided with an external spline, one end of the connecting shaft 52 close to the output shaft 73 is provided with an internal spline, and the internal spline and the external spline are mutually matched.

As shown in fig. 1, the injection driving mechanism 8 includes an injection driving motor 81 fixedly connected to the front plate 2, a screw rod 82 is drivingly connected to the injection driving motor 81, one end of the screw rod 82 far from the injection driving motor 81 penetrates through the moving assembly 5 and is rotationally connected to the rear plate 3, for example, the screw rod 82 can be rotationally connected to the rear plate 3 through a bearing, the injection driving mechanism 8 further includes a sliding sleeve 83 in threaded connection with the screw rod 82, and the driving screw rod 82 rotates to enable the sliding sleeve 83 to be pressed on the surface of the moving assembly 5 near one side of the rear plate 3.

During injection molding, the injection molding driving motor 81 is started, the injection molding driving motor 81 drives the screw rod 82 to rotate, the sliding sleeve 83 moves along the axial lead direction of the screw rod 82 and is pressed on the surface of one side, close to the rear plate 3, of the moving assembly 5, the screw rod 82 is continuously driven, and the sliding sleeve 83 pushes the moving assembly 5 to further push the charging barrel screw rod 6 to complete injection.

Referring to fig. 1-3, the plastic injection cylinder 4 includes a cylinder 44 having an injection cavity 41 therein, molten plastic is stored in the cylinder 44, a nozzle 42 is disposed at an end of the cylinder 44 away from the moving component 5, the nozzle 42 is communicated with the injection cavity 41, an end of the cylinder screw 6 extends into the injection cavity 41, a check ring assembly 43 for preventing the molten plastic from flowing backwards is further sleeved on the cylinder screw 6, and the check ring assembly 43 is movably connected with the cylinder screw 6.

Specifically, the check ring assembly 43 comprises a ring body 431 sleeved on the barrel screw 6, the inner surface of the ring body 431 is provided with a plurality of guide grooves 432 recessed towards the inside of the ring body 431, the guide grooves 432 are slidably connected with guide blocks protruding out of the surface of the barrel screw 6, the surface of one end, away from the nozzle 42, of the ring body 431 is provided with a sealing groove 433 recessed towards the inside of the ring body 431, and the barrel screw 6 is provided with a sealing convex block matched with the sealing groove 433. The utility model discloses a ring body 431 tip has sealed recess 433, can form step-like sealed face with feed cylinder screw rod 6's sealed lug looks adaptation, compares the plane sealed face that directly mutual pressfitting formed in prior art and has better sealed effect, and melting plastic is against the current when can effectively preventing to inject.

Preferably, the bottom surface of the sealing groove 433 is arc-shaped, and the end part of the sealing bump is also arc-shaped, so that a better attaching effect is achieved between the sealing groove 433 and the sealing bump. Meanwhile, compared with a sealing bump with a square end part at the bottom, the arc shape has a certain guiding function, and the position can be automatically corrected when slight position deviation occurs between the ring body 431 and the barrel screw 6.

As shown in fig. 3, the inner surface of the ring body 431 is fixedly connected with a plurality of driving pieces 434, the driving pieces 434 further strengthen the stress of the ring body 431 by increasing the stress area, the sealing effect is improved, and the ring body 431 and the charging barrel screw 6 can be timely separated in the material storage process. The driving plate 434 extends spirally along the axial line of the ring body 431, and the driving plate 434 is arranged to be offset from the guide groove 432. That is, the driving pieces 434 are arranged in a staggered manner along the axial center line of the ring body 431. If the two molten plastics are arranged on the same plane, the flow area of the molten plastics is suddenly reduced when the molten plastics pass through the plane, which is not favorable for the flow of the molten plastics.

Combine shown in fig. 1 and 2, still include mounting panel 9, be equipped with guide rail 10 on the mounting panel 9, slider 11 sliding connection is on guide rail 10, slider 11 keeps away from guide rail 10 side surface and base 1 fixed connection, drives actuating cylinder 12 fixed mounting on mounting panel 9, and drive shaft 13 is connected on driving actuating cylinder 12, the one end that drive shaft 13 kept away from driving actuating cylinder 12 is connected with base 1. The base 1 can be driven to slide relative to the mounting plate 9 by the driving cylinder 12, so that the whole injection molding structure can be adjusted to a proper position.

The utility model discloses a theory of operation is: during the use, start and drive actuating cylinder 12 and slide to suitable position in order to adjust mounting panel 9 is whole, restart storage motor 71, storage motor 71 passes through reduction gear 72 drive output shaft 73, output shaft 73 gives connecting axle 52 with power transmission, when connecting axle 52 drives feed cylinder screw 6 and rotates to a certain direction, because feed cylinder screw 6 surface has screw thread 61, can make the material with injection molding feed cylinder 4 the inside cut, thereby make feed cylinder screw 6 take place to be close to the removal of backplate 3 along the axial lead, thereby drive connecting axle 52 and movable plate 51 and take place to be close to the removal of backplate 3, in order to realize the storage in the injection molding section of thick bamboo 4. During injection molding, the injection molding driving motor 81 is started, the injection molding driving motor 81 drives the screw rod 82 to rotate, the sliding sleeve 83 moves along the axial lead direction of the screw rod 82 and is pressed on the surface of one side, close to the rear plate 3, of the moving assembly 5, the screw rod 82 is continuously driven, and the sliding sleeve 83 pushes the moving assembly 5 to further push the charging barrel screw rod 6 to complete injection. The event the utility model discloses a charging barrel screw rod 6 is connected on the removal subassembly 5 that can remove alone, and the back plate can not remove along with charging barrel screw rod 6 when the fixed setting of back plate 3 guarantees the injection on base 1 to reduced and removed inertia, promoted the life and the precision of moulding plastics of injection molding machine. And simultaneously, the utility model discloses a front bezel 2 is also fixed to be set up on base 1, and the storage process also only needs to remove removal subassembly 5 to reduced and removed inertia, guaranteed to realize steady storage.

Example 2

The present embodiment provides an injection molding machine, which is shown in fig. 1 to 3, and includes an injection molding machine housing, and a high-speed low-inertia structure applied to the injection molding machine described in embodiment 1 is disposed in the injection molding machine housing.

Claims (10)

1. The utility model provides a be applied to low inertia structure of high speed of injection molding machine, includes base (1), its characterized in that: the injection molding machine is characterized in that a front plate (2) and a rear plate (3) are fixedly arranged on the base (1), an injection plastic cylinder (4) is connected onto the front plate (2), a moving assembly (5) which can slide relative to the base (1) is arranged between the front plate (2) and the rear plate (3), a driving mechanism (100) which is used for driving the moving assembly (5) to move close to the front plate (2) or the rear plate (3) is arranged on the front plate (2), the rear plate (3) and/or the base (1), a material cylinder screw (6) is connected onto the moving assembly (5), one end, far away from the moving assembly (5), of the material cylinder screw (6) extends into the injection plastic cylinder (4), the injection molding machine further comprises a feeding port (200) communicated with the interior of the injection plastic cylinder (4), the feeding port (200) is arranged on the injection plastic cylinder (4) or the front plate (2), and a guide structure is further arranged between the front plate (2) and the rear plate (3), the guide structure is fixedly connected to the base (1), and the moving assembly (5) is connected with the guide structure in a sliding mode.

2. A high speed, low inertia structure for use in an injection molding machine, as claimed in claim 1, wherein: actuating mechanism (100) are close to the storage actuating mechanism (7) of back plate (3) and can drive actuating mechanism (8) of moulding plastics that moving assembly (5) are close to front bezel (2) including driving moving assembly (5), storage actuating mechanism (7) set up on back plate (3), actuating mechanism (8) of moulding plastics set up on front bezel (2).

3. A high-speed low-inertia structure for use in an injection molding machine, as claimed in claim 2, wherein: remove subassembly (5) including movable plate (51) and connecting axle (52) of setting on movable plate (51), connecting axle (52) are rotated with movable plate (51) through bearing (53) and are connected, the one end and feed cylinder screw rod (6) fixed connection of connecting axle (52), the other end and the fixed axial sliding connection of output circumference of storage actuating mechanism (7), feed cylinder screw rod (6) surface has screw thread (61).

4. A high-speed low-inertia structure for use in an injection molding machine, as claimed in claim 3, wherein: the material storage driving mechanism (7) comprises a material storage motor (71) and a speed reducer (72) which are connected in a driving mode, the speed reducer (72) is fixedly connected to the rear plate (3), an output shaft (73) is in driving connection with the speed reducer (72), one end, away from the speed reducer (72), of the output shaft (73) is provided with an external spline, one end, close to the output shaft (73), of the connecting shaft (52) is provided with an internal spline, and the internal spline and the external spline are matched with each other.

5. A high-speed low-inertia structure for use in an injection molding machine, as claimed in claim 4, wherein: the back plate (3) is including fixed connection's installed part (31) and a lubrication section of thick bamboo (32), installed part (31) and base (1) fixed connection, lubrication cavity (33) have in the lubrication section of thick bamboo (32), set up lubrication hole (34) on the lubrication section of thick bamboo (32) and be linked together with lubrication cavity (33), connecting axle (52) and output shaft (73) extend to in lubrication cavity (33) from the both ends of a lubrication section of thick bamboo (32) respectively, connecting axle (52) are through first uide bushing (35) and lubrication section of thick bamboo (32) sealing connection, output shaft (73) are through second uide bushing (36) and lubrication section of thick bamboo (32) sealing connection.

6. A high-speed low-inertia structure for use in an injection molding machine, as claimed in claim 2, wherein: injection moulding actuating mechanism (8) include injection moulding driving motor (81) of fixed connection on front bezel (2), and lead screw (82) drive connection is on injection moulding driving motor (81), the one end that injection moulding driving motor (81) was kept away from in lead screw (82) runs through removal subassembly (5), injection moulding actuating mechanism (8) still include with lead screw (82) threaded connection's sliding sleeve (83), drive lead screw (82) rotate can make sliding sleeve (83) press to establish on removing subassembly (5) and be close to back plate (3) one side on the surface.

7. A high speed, low inertia structure for use in an injection molding machine, as claimed in claim 1, wherein: annotate plastic cylinder (4) including inside barrel (44) that has injection molding cavity (41), the one end that removal subassembly (5) were kept away from in barrel (44) is equipped with nozzle (42), nozzle (42) are linked together with injection molding cavity (41), the one end of feed cylinder screw rod (6) extends to in injection molding cavity (41), still the cover is equipped with non return ring subassembly (43) that prevent the molten plastic countercurrent on feed cylinder screw rod (6), non return ring subassembly (43) and feed cylinder screw rod (6) swing joint.

8. A high-speed low-inertia structure for use in an injection molding machine, as claimed in claim 7, wherein: check ring subassembly (43) establish ring body (431) on feed cylinder screw (6) including the cover, ring body (431) internal surface has a plurality of to ring body (431) inside sunken guide way (432), guide way (432) and the guide block sliding connection who protrudes feed cylinder screw (6) surface, the one end surface that nozzle (42) were kept away from in ring body (431) has to ring body (431) inside sunken sealing groove (433), feed cylinder screw (6) are equipped with the sealed lug with sealing groove (433) looks adaptation, sealing groove (433) bottom surface is arc, ring body (431) internal surface fixed connection has a plurality of driving plates (434), and driving plate (434) extend along the axial lead direction spiral of ring body (431), driving plate (434) and guide way (432) dislocation set.

9. A high speed, low inertia structure for use in an injection molding machine, as claimed in claim 1, wherein: still include mounting panel (9), be equipped with guide rail (10) on mounting panel (9), slider (11) sliding connection is on guide rail (10), guide rail (10) side surface and base (1) fixed connection are kept away from in slider (11), drive actuating cylinder (12) fixed mounting on mounting panel (9), and drive shaft (13) are connected on driving actuating cylinder (12), the one end that drives actuating cylinder (12) was kept away from in drive shaft (13) is connected with base (1).

10. An injection molding machine, includes the injection molding machine casing, its characterized in that: a high speed low inertia structure for use in an injection molding machine as claimed in any one of claims 1 to 9 is provided within the housing of the injection molding machine.

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