CN210415284U

CN210415284U - Plastic injection molding machine

Info

Publication number: CN210415284U
Application number: CN201921199384.9U
Authority: CN
Inventors: 陈玉丹; 黄王杰
Original assignee: Wenzhou Yonghe Resin Products Co Ltd
Current assignee: Wenzhou Yonghe Resin Products Co Ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-04-28
Anticipated expiration: 2029-07-26

Abstract

The utility model discloses a plastic injection molding machine, which relates to the technical field of plastic product production equipment, and the key points of the technical proposal comprise a machine body, a feeding hopper arranged at the upper end of the machine body, a connecting pipe arranged at the bottom of the feeding hopper, and the lower end of the connecting pipe inserted on the machine body; the utility model discloses a plastic material feeding device, including feeding hopper, rotating frame, output shaft, rotating frame, stirring strip, connecting pipe, the feeding hopper upper end is provided with the horizontally baffle, it is connected with the rotating frame that is located the feeding hopper to rotate on the baffle, install the fixed driving motor in output shaft and rotating frame upper end on the baffle, the rotating frame lower extreme is provided with vertical stirring strip, stirring strip lateral wall and the laminating of feeding hopper inside wall, stirring strip lower extreme extends to the connecting pipe upper end, the utility model discloses have the jam that can avoid plastics, make plastics effect more smooth when the whereabouts.

Description

Plastic injection molding machine

Technical Field

The utility model relates to a technical field of plastic products production facility, more specifically say, it relates to a plastics injection molding machine.

Background

Plastic injection molding machines are also known as plastic injection molding machines or plastic injection machines. It is a main forming equipment for making various shaped plastic products with thermoplastic plastics or thermosetting plastics by using plastic forming mould. The device is divided into a vertical type, a horizontal type and a full-electric type. The plastic injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity.

Chinese patent with publication number CN208558217U discloses a plastic heating device for injection molding machine, which comprises a charging barrel, an electric heating coil heater is installed on the top wall of the charging barrel, the charging barrel upside is equipped with the feeding hopper, the bottom fixed mounting of feeding hopper has the connecting pipe, and the bottom of connecting pipe is inserted on the top wall of the charging barrel, a control valve is installed on one side of the connecting pipe, fixed mounting has a motor on the lateral wall of charging barrel one end, the drive end fixed mounting of motor has the pivot, evenly install a plurality of puddlers on the lateral wall of pivot, install exhaust apparatus on the top wall of charging barrel. The utility model discloses a not only can prevent that the heat in the feed cylinder from running off, can also prevent that the raw materials from melting at the feed opening, not only simple structure can also reduction in production cost, and exhaust apparatus and agitating unit cooperation can be fast with the gas outgoing in the raw materials in the heating process, appear the bubble in the raw materials when avoiding injection moulding to injection moulding's effect has been improved.

However, in the practical operation of the feeding hopper in the above patent, because the caliber of the connecting pipe is relatively small, when a large amount of plastic falls into the connecting pipe from above the feeding hopper, the friction force between the plastic is large, so that the falling speed of the plastic is slow, and the plastic is difficult to fall into the connecting pipe smoothly; the situation that the plastic is blocked at the upper end of the connecting pipe even occurs seriously, and the normal falling of the plastic is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a plastic injection molding machine, which has the advantages of avoiding the blockage of plastic and ensuring the effect of plastic more smoothly when falling.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a plastic injection molding machine comprises a machine body, a feeding hopper arranged at the upper end of the machine body, wherein the bottom of the feeding hopper is provided with a connecting pipe, and the lower end of the connecting pipe is inserted on the machine body; the improved stirring device is characterized in that a horizontal partition plate is arranged at the upper end of the feeding hopper, a rotating frame located in the feeding hopper is connected to the partition plate in a rotating mode, a driving motor with an output shaft fixed to the upper end of the rotating frame is installed on the partition plate, vertical stirring strips are arranged at the lower end of the rotating frame, the side walls of the stirring strips are attached to the inner side wall of the feeding hopper, and the lower end of the stirring strips extends to the upper end of a connecting pipe.

By adopting the technical scheme, when the upper end of the connecting pipe is blocked by a large amount of plastics, the rotating frame is rotated by starting the driving motor, the stirring strips arranged on the rotating frame rotate along the circumferential direction of the inner side wall of the feeding hopper at the moment, and the plastics in the feeding hopper can be stirred by the stirring strips rotating along the circumferential direction, so that the flowing of the plastics is realized, and the condition that the upper end of the connecting pipe is blocked due to overlarge friction force between the plastics is avoided; the flow velocity of the plastic can be accelerated through the stirring action of the stirring strips, so that the plastic can fall into the connecting pipe more smoothly and quickly; and can also sweep some plastics that adhere on the upper hopper inside wall down through the stirring of stirring strip, make the upper hopper inside keep clean.

The utility model discloses further set up to: adjacent be provided with horizontal connecting strip between the stirring strip, connecting strip one side and the laminating of feeding funnel inside wall, the connecting strip opposite side rotates and is connected with the impeller, circumference is around there being the blade on the impeller.

By adopting the technical scheme, because the stirring strips are subjected to larger resistance during stirring, the connection among the stirring strips can be enhanced through the connecting strips, the structural strength of the stirring strips is also improved, the stirring strips are more stable during stirring, and the cracking of the stirring strips is avoided; the stirring bar drives the impeller to rotate by the plastic which gradually flows downwards during working, and the plastic can be guided by the rotation of the impeller and the blades, so that the plastic can flow to avoid the blockage of the plastic.

The utility model discloses further set up to: the stirring strip is provided with guide pieces, and the guide pieces are gradually inclined towards the direction close to the impeller.

Through adopting above-mentioned technical scheme, when the stirring strip when the stirring, the guide vane can flow to the impeller direction with the plastics that flow down from the top to make plastics can form even stable flow direction, help the directional flow of plastics through the guide vane, avoid plastics to form unstable sinuous flow and cause the jam when flowing.

The utility model discloses further set up to: and a reinforcing plate is arranged on the guide plate, and the other end of the reinforcing plate is connected with the corresponding stirring strip.

Through adopting above-mentioned technical scheme, the gusset plate sets up on the lateral wall that deviates from the direction of rotation of guide plate, because the guide plate will receive the great resistance of plastics when rotating, can strengthen the structure of guide plate through the gusset plate to make more stable when rotating of guide plate, avoid the guide plate to break.

The utility model discloses further set up to: the lower end of the feeding hopper is provided with a perspective window, and the interior of the feeding hopper is visually observed through the perspective window.

By adopting the technical scheme, a user can observe the plastic flowing condition in the feeding hopper more clearly and visually through the perspective window, and once the plastic is observed to be blocked, the driving motor can be started at the first time to stir the blocked plastic; simultaneously, the residual amount of the plastic can be more conveniently observed through the perspective window, so that a user can be reminded of feeding materials in the feeding hopper in time.

The utility model discloses further set up to: a feeding hole is formed between the upper end of the feeding hopper and the partition plate, and a material baffle plate used for shielding the feeding hole is hinged to the feeding hopper.

By adopting the technical scheme, when plastics need to be added into the feeding hopper, the material baffle plate is turned out in the direction far away from the feeding hopper, so that the plastics can be poured into the feeding hopper from the feeding port; after finishing adding plastics, the striker plate covers, and dust in the plastics can be prevented from diffusing to the outside air through the striker plate, so that the effect of blocking dust and protecting the working environment is achieved.

The utility model discloses further set up to: the material baffle is characterized in that a retreating groove is formed in the upper surface of the material baffle, heat dissipation holes penetrating through the material feeding hopper are formed in the retreating groove, and a sliding plate used for shielding the heat dissipation holes is further arranged in the retreating groove in a sliding mode.

By adopting the technical scheme, when the temperature in the feeding hopper is too high, part of plastic can be melted due to the too high temperature, once the plastic in the feeding hopper is melted, the plastic can be adhered to the inner side wall of the feeding hopper, so that the plastic is easily blocked; the heat dissipation holes are opened by sliding the sliding plate out of the retreat groove, and redundant heat in the feeding hopper can be dissipated through the heat dissipation holes, so that the inner part of the feeding hopper can be cooled; thereby avoiding the situation that the plastic is adhered in the feeding hopper to cause blockage.

The utility model discloses further set up to: the lower end of the connecting pipe is provided with a heating coil in a surrounding manner.

By adopting the technical scheme, when the plastic flows into the connecting pipe from the feeding hopper, the plastic can be preheated through the heating coil, so that the plastic can be gradually melted and smoothly flows into the machine body, and the plastic is prevented from being blocked in the connecting pipe; the heating coil can also melt the plastic previously adhered to the inner wall of the connecting pipe, so that the plastic smoothly flows down to avoid blocking the connecting pipe.

To sum up, the utility model discloses following beneficial effect has:

1. when the upper end of the connecting pipe is blocked by a large amount of plastics, the rotating frame is rotated by starting the driving motor, the stirring strips arranged on the rotating frame circumferentially rotate along the inner side wall of the feeding hopper at the moment, and the plastics in the feeding hopper can be stirred by the circumferentially-rotating stirring strips, so that the flowing of the plastics is realized, and the condition that the upper end of the connecting pipe is blocked due to overlarge friction force between the plastics is avoided; the plastic which gradually flows downwards when the stirring strip works drives the impeller to rotate, and the plastic can be guided by the rotation of the impeller and the blades, so that the plastic can flow to avoid the blockage of the plastic; the plastic adhered to the inner side wall of the feeding hopper can be swept down by stirring of the stirring strips, so that the interior of the feeding hopper is kept clean;

2. when plastics flow into to the connecting tube from the feeding funnel, can preheat plastics through heating coil to make plastics can melt gradually and smooth inflow in to the organism, avoid plastics to block up in the connecting tube.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the present invention showing the structure of the upper material plate after the machine body is hidden;

FIG. 3 is an exploded view of the local structure of the feeding port of the present invention;

FIG. 4 is a schematic view of the structure of the stirring bar of the present invention after the machine body and the feeding hopper are hidden;

fig. 5 is a schematic sectional view showing the inside of the feeding funnel according to the present invention.

Reference numerals: 1. a body; 2. feeding a hopper; 3. a heating coil; 4. a connecting pipe; 5. a partition plate; 6. a rotating frame; 7. stirring strips; 8. a connecting strip; 9. an impeller; 10. a blade; 11. a drive motor; 12. a guide piece; 13. a reinforcing plate; 14. a perspective window; 15. a feed port; 16. a striker plate; 17. a withdrawal groove; 18. heat dissipation holes; 19. a slide board.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, a plastic injection molding machine comprises a machine body 1, wherein a vertical barrel-shaped feeding hopper 2 is installed at the upper end of the machine body 1, a connecting pipe 4 which is communicated up and down is fixedly connected to the bottom of the feeding hopper 2, and the axial lead of the feeding hopper 2 and the axial lead of the connecting pipe 4 are overlapped. The lower end of the connecting pipe 4 is fixedly inserted above the machine body 1.

As shown in fig. 2 and 3, a horizontal partition plate 5 is fixedly connected to the upper end of the feeding hopper 2, a semicircular feeding port 15 is formed between the upper end of the feeding hopper 2 and the partition plate 5, a striker plate 16 used for shielding the feeding port 15 is hinged to the upper end of the feeding hopper 2, the striker plate 16 is horizontally arranged, and the striker plate 16 and the partition plate 5 are mutually covered. The baffle plate 16 can prevent dust in the plastic from diffusing into the outside air, thereby blocking the dust.

As shown in fig. 2 and 3, a horizontal retreat groove 17 is formed in the upper surface of the striker plate 16, and the retreat groove 17 is located in the middle of the striker plate 16. A large number of uniformly distributed heat dissipation holes 18 are formed in the receding groove 17, the heat dissipation holes 18 are vertically arranged and penetrate through the baffle plate 16, and the lower ends of the heat dissipation holes 18 are communicated with the interior of the feeding hopper 2. A sliding plate 19 for shielding the heat dissipation holes 18 is horizontally arranged in the retreat groove 17 in a sliding manner. When the temperature in the feeding hopper 2 is too high, the sliding plate 19 slides out of the retreat groove 17, and the heat dissipation and ventilation in the feeding hopper 2 can be realized through the heat dissipation holes 18.

As shown in fig. 3, a driving motor 11 with an output shaft vertically inserted downwards into the upper hopper 2 is fixedly installed on the partition plate 5, the output shaft of the driving motor 11 is located on the axial line of the upper hopper 2, and the output shaft of the driving motor 11 is rotatably connected to the partition plate 5. The partition board 5 is also rotatably connected with a rotating frame 6 positioned in the feeding hopper 2, the axial lead of the rotating frame 6 is overlapped with the axial lead of the feeding hopper 2, and the upper end of the rotating frame 6 is fixedly connected with an output shaft of a driving motor 11.

As shown in fig. 3 and 4, four vertical stirring strips 7 are fixedly connected to the lower end of the rotating frame 6, and the four stirring strips 7 are uniformly circumferentially wound on the rotating frame 6. Stirring strip 7 extends to 4 upper ends of connecting pipe downwards gradually, and the lateral wall that four stirring strips 7 deviate from each other is the cambered surface, and laminates with 2 inside walls of feeding funnel. Equal three horizontal connecting strips 8 that set up of fixedly connected with between two adjacent stirring strips 7, three connecting strips 8 are parallel to each other and one end lateral wall and the laminating of 2 inside walls of feeding funnel.

As shown in fig. 4 and 5, the side walls of the connecting strips 8 facing the axial lead direction of the feeding hopper 2 are rotatably connected with impellers 9, the impellers 9 are located in the middle of the connecting strips 8, five circumferentially surrounding blades 10 are fixedly connected to the outer sides of the impellers 9, and the five blades 10 are uniformly distributed on the outer sides of the impellers 9 and perpendicular to the outer ring of the impellers 9. The stirring bar 7 drives the impeller 9 and the blades 10 to rotate by the plastic which gradually flows downwards during operation, and the rotation of the impeller 9 and the blades 10 can guide the plastic, so that the plastic can flow to avoid the plastic from blocking the upper end of the connecting pipe 4.

As shown in fig. 4 and 5, three guide blades 12 respectively located at one side of the corresponding impeller 9 are fixedly connected to the side wall of one end of the stirring bar 7, and the guide blades 12 are located above the corresponding impeller 9. The other end of each guide vane 12 gradually inclines downwards towards the direction close to the impeller 9, and the guide vanes 12 are positioned at the same side of the corresponding stirring strips 7 and face the rotation direction of the stirring strips 7.

As shown in fig. 4 and 5, the side walls of the guide pieces 12 are fixedly connected with reinforcing plates 13 facing the respective fixed stirring bars 7, and the other ends of the reinforcing plates 13 are fixedly connected with the opposite side walls of the stirring bars 7. The reinforcing plate 13 is located on the side wall of the guide piece 12 facing away from the rotation direction of the stirring bar 7. Since the guide piece 12 will be subjected to a greater resistance by the plastic during rotation, the structure of the guide piece 12 can be reinforced by the reinforcing plate 13, so that the guide piece 12 is more stable during rotation.

As shown in fig. 1 and 5, a perspective window 14 is installed at the lower end of the feeding hopper 2, the perspective window 14 is positioned above the connecting pipe 4, a user can observe the plastic flowing condition in the feeding hopper 2 more clearly and visually through the perspective window 14, and once the plastic is observed to be blocked, the driving motor 11 can be started at the first time to stir the blocked plastic. Heating coil 3 has circumferentially been surrounded on the inside wall of the lower end of connecting pipe 4, can preheat plastics through heating coil 3 to make plastics can melt gradually and smooth inflow to organism 1 in, avoid plastics to form in connecting pipe 4 and block up.

The specific effects of the embodiment are as follows:

when connecting pipe 4 upper end was blockked up by a large amount of plastics, made rotating turret 6 rotate through start-up driving motor 11, set up stirring strip 7 on rotating turret 6 this moment and will be along the inside wall circumferential direction of feeding funnel 2, can stir the plastics in feeding funnel 2 through circumferential direction's stirring strip 7 to realize the flow of plastics, avoid blockking up the condition in connecting pipe 4 upper end because of the frictional force between the plastics is too big. The stirring strips 7 drive the impeller 9 to rotate by the plastic which gradually flows downwards during operation, and the plastic can be guided by the rotation of the impeller 9 and the blades 10, so that the plastic can further avoid the blockage of the plastic. And also can sweep down some plastics adhered to the inner side wall of the upper hopper 2 by the stirring of the stirring bar 7, so that the inside of the upper hopper 2 is kept clean. When plastics flow into to connecting pipe 4 in from feeding funnel 2, can preheat plastics through heating coil 3 to make plastics can melt gradually and smooth inflow to organism 1 in, avoid plastics to block up in connecting pipe 4.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. A plastic injection molding machine comprises a machine body (1), a feeding hopper (2) arranged at the upper end of the machine body (1), a connecting pipe (4) arranged at the bottom of the feeding hopper (2), and the lower end of the connecting pipe (4) inserted on the machine body (1); the method is characterized in that: go up hopper (2) upper end and be provided with horizontally baffle (5), it is connected with rotating turret (6) that are located feeding hopper (2) to rotate on baffle (5), install output shaft and fixed driving motor (11) in rotating turret (6) upper end on baffle (5), rotating turret (6) lower extreme is provided with vertical stirring strip (7), stirring strip (7) lateral wall and the laminating of feeding hopper (2) inside wall, stirring strip (7) lower extreme extends to connecting pipe (4) upper end.

2. A plastic injection molding machine as claimed in claim 1, wherein: adjacent be provided with horizontal connecting strip (8) between stirring strip (7), connecting strip (8) one side and the laminating of feeding funnel (2) inside wall, connecting strip (8) opposite side is rotated and is connected with impeller (9), circumference is gone up in impeller (9) and is surrounded there are blade (10).

3. A plastic injection molding machine as claimed in claim 2, wherein: the stirring strip (7) is provided with a guide sheet (12), and the guide sheet (12) gradually inclines towards the direction close to the impeller (9).

4. A plastic injection molding machine as claimed in claim 3, wherein: the guide plate (12) is provided with a reinforcing plate (13), and the other end of the reinforcing plate (13) is connected with the corresponding stirring strip (7).

5. A plastic injection molding machine as claimed in claim 1, wherein: go up hopper (2) lower extreme and be provided with perspective window (14), through perspective window (14) come audio-visual to go up hopper (2) inside observe.

6. A plastic injection molding machine as claimed in claim 5, wherein: a feeding hole (15) is formed between the upper end of the feeding hopper (2) and the partition plate (5), and a material baffle plate (16) used for shielding the feeding hole (15) is hinged to the feeding hopper (2).

7. A plastic injection molding machine as claimed in claim 6, wherein: the material baffle is characterized in that a retreating groove (17) is formed in the upper surface of the material baffle (16), heat dissipation holes (18) penetrating through the interior of the feeding hopper (2) are formed in the retreating groove (17), and sliding plates (19) used for shielding the heat dissipation holes (18) are further arranged in the retreating groove (17) in a sliding mode.

8. A plastic injection molding machine as claimed in claim 1, wherein: the lower end of the connecting pipe (4) is provided with a heating coil (3) in a surrounding way.