Double-color vertical turntable injection molding machine

Abstract

The utility model relates to the technical field of injection molding machinery, and discloses a double-color vertical turntable injection molding machine. The injection molding machine comprises a rack, the rack is fixedly provided with a bearing plate, the bearing plate is provided with a rotating disc, and the rotating disc is used for bearing a lower mold and can drive the lower mold to rotate; four groups of green columns vertically penetrate through the bearing plate, an upper die bracket is arranged at the upper ends of the four groups of green columns, and a driving plate is arranged at the lower ends of the four groups of green columns; two stations for mounting the plastic injection mechanism are symmetrically arranged on the upper end surface of the upper mold bracket, and the bottom surface of the upper mold bracket is used for mounting the upper mold; a mold cylinder is arranged at the bottom of the bearing plate, and the telescopic end of the mold cylinder is connected to the driving plate; the four groups of green columns are arranged in an isosceles trapezoid shape; and the mold cylinder is used for driving the green column to drive the upper mold bracket to perform up-down mold closing movement relative to the turntable. The stability, the service life and the practicability of the injection molding machine are improved under the structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding machine technical field, concretely is a double -color vertical carousel injection molding machine. BACKGROUND

[0002] The injection molding machine is also called injection molding machine or injection machine, which is the main molding equipment for making various shape plastic products by using thermoplastic or thermosetting plastic through plastic molding mold; it is divided into vertical, horizontal and full electric type. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and make it fill the mold cavity. The advantages of injection molding are fast production speed, high efficiency, automatic operation, shape from simple to complex, size from large to small, accurate product size, easy product update, and complex shape parts.

[0003] In the structure of the existing vertical injection molding machine, the mold cylinder is fixedly installed above the machine body through four guide support columns arranged in a rectangular shape, and the plastic injection mechanism is installed on the upper mold support. The upper mold frame is driven downward by the mold cylinder to drive the upper mold plate to perform mold closing operation relative to the lower mold plate. During mold closing operation, the mold cylinder and the plastic injection mechanism (especially the multi-color plastic injection mechanism) will generate a large vibration, and the gravity of the upper end part of the guide support column is relatively large, that is, the center of gravity of the injection molding machine is high. This leads to poor stability of the entire injection molding machine, especially after long-term operation, which accelerates the wear between various parts of the injection molding machine, affects the mold closing effect and the service life of the injection molding machine.

[0004] Therefore, there is an urgent need for a double-color vertical carousel injection molding machine to solve the above problems. INVENTION CONTENTS

[0005] Based on the above, the purpose of the utility model is to provide a double-color vertical carousel injection molding machine to solve the problem of poor stability and short service life of the vertical injection molding machine in the prior art due to the high center of gravity.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0007] The utility model provides a double-color vertical carousel injection molding machine, which comprises:

[0008] A rack is provided with a bearing plate, and a carousel is installed on the bearing plate, which is used for supporting the lower mold and driving the lower mold to rotate;

[0009] Four groups of Green columns are vertically arranged on the bearing plate, and the upper end of the four groups of Green columns is provided with an upper mold support, and the lower end is provided with a driving plate; the upper end face of the upper mold support is provided with two workstations for installing the plastic injection mechanism in a symmetrical manner, and the bottom surface is used for installing the upper mold;

[0010] The bottom of the bearing plate is provided with a mold cylinder, and the telescopic end of the mold cylinder is connected to the driving plate.

[0011] Among them, four groups of the green column are arranged in the shape of an isosceles trapezoid; the mold cylinder is used to drive the green column to drive the upper mold support to move up and down relative to the turntable.

[0012] As an optional technical solution of the double-color vertical turntable injection molding machine, the mold cylinder is provided with two groups, and the two groups of mold cylinders are symmetrically arranged at the bottom of the bearing plate.

[0013] As an optional technical solution of the double-color vertical turntable injection molding machine, the bearing plate is provided with a quick cylinder on the left and right sides of the two groups of mold cylinders, and the telescopic end of the quick cylinder is connected to the driving plate.

[0014] As an optional technical solution of the double-color vertical turntable injection molding machine, the bottom of the bearing plate is provided with a rotary motor, the output end of the rotary motor extends upward through the bearing plate and is provided with a driving wheel, and the driving wheel is drivingly connected with the turntable.

[0015] As an optional technical solution of the double-color vertical turntable injection molding machine, the bottom of the bearing plate is provided with a jacking mechanism, the jacking mechanism includes a jacking cylinder and a plurality of jacking rods arranged on the jacking cylinder, and the plurality of jacking rods extend through the bearing plate and the turntable in sequence to perform jacking movement on the lower mold.

[0016] As an optional technical solution of the double-color vertical turntable injection molding machine, a liquid-electric slip ring is installed at the center position of the turntable, and the turntable is rotatably connected with the bearing plate through the liquid-electric slip ring.

[0017] As an optional technical solution of the double-color vertical turntable injection molding machine, a height-limiting step is arranged on the circumferential outer diameter of the turntable, a plurality of height-limiting blocks are arranged on the bearing plate along the circumferential outer diameter of the turntable, and one end of the height-limiting block extends to the height-limiting step.

[0018] As an optional technical solution of the double-color vertical turntable injection molding machine, an oil tank is installed at the rear end position of the rack, an oil way plate, a first oil pump and a second oil pump are arranged on the top of the oil tank, and a cooler for cooling hydraulic oil is arranged on the side surface of the oil tank.

[0019] As an optional technical solution of the double-color vertical turntable injection molding machine, protective covers are installed at the left and right ends of the bearing plate, and a protective ring is arranged on the circumferential outer diameter of the turntable.

[0020] As an optional technical solution of the double-color vertical turntable injection molding machine, a control panel is installed at one end of the bearing plate away from the oil tank, a control box is installed on one side of the rack, and the control panel and the control box are electrically connected.

[0021] The utility model discloses a beneficial effect is:

[0022] The utility model provides a double -colored vertical carousel injection molding machine, this injection molding machine includes: frame, is fixed with the bearing plate on the frame, is installed with the carousel on the bearing plate, and the carousel is used for loading lower mould and can drive its lower mould to rotate, the bearing plate is vertically equipped with four groups of green columns, and the upper end of four groups of green columns is equipped with the upper die support, and its lower end installs the drive plate, the upper end face of the upper die support is equipped with two workstations for installing plastic injection mechanism in the symmetrical mode, and its bottom surface is used for installing the upper die, the bottom of the bearing plate is equipped with the mould cylinder, and the telescopic end of mould cylinder is connected to the drive plate, four groups of green columns are arranged in isosceles trapezoidal shape, and the mould cylinder is used for driving green column to drive the upper die support to move up and down relative carousel and close mould.

[0023] Under the above structure, by setting the mould cylinder and the quick cylinder at the bottom of the bearing plate, the gravity of the upper die support is reduced, the overall gravity center of the injection molding machine is lowered, and the vibration when the mould cylinder drives the upper die support to move relative to the carousel is reduced, the stability and service life of the injection molding machine are improved, four groups of green columns are arranged in isosceles trapezoidal shape, which further improves the stability when the upper die support moves up and down, on the other hand, since the distance between the two groups of green columns in front of the frame is greater than the distance between the two groups of green columns in the rear, the horizontal space when the staff takes and places the lower mould and the injection molding product is increased, and the practicability of the injection molding machine is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the overall structure schematic diagram of double -colored vertical carousel injection molding machine in the utility model embodiment;

[0025] Figure 2 It is the partial structure schematic diagram of double -colored vertical carousel injection molding machine in the utility model embodiment;

[0026] Figure 3 It is Figure 2 The enlarged schematic view of A in the middle;

[0027] Figure 4 It is Figure 2 The enlarged schematic view of B in the middle;

[0028] Figure 5 It is the structure schematic diagram of oil tank in the utility model embodiment;

[0029] Figure 6 It is the structure schematic diagram of protective cover in the utility model embodiment.

[0030] In the drawing:

[0031] 1, rack; 10, bearing plate; 101, height limiting block; 11, protective cover; 12, protective ring; 13, control panel; 14, control box; 15, light curtain;

[0032] 2, turntable; 20, height limiting step; 21, green column; 22, upper die support; 23, driving plate; 24, die cylinder; 25, quick cylinder;

[0033] 3, rotary motor; 30, driving wheel; 4, jacking mechanism; 40, jacking cylinder; 41, jacking rod; 5, liquid-electric slip ring;

[0034] 6, oil tank; 60, oil way plate; 61, first oil pump; 62, second oil pump; 63, cooler. DETAILED DESCRIPTION

[0035] The utility model will be described in further detail below in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for the convenience of description, not all the structures.

[0036] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication of two element

[0037] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication of two element

[0038] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include the direct contact of the first and second features, or the indirect contact of the first and second features through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0039] In the description of the present embodiment, the terms "upper", "lower", "left", "right" and the like orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model.

[0040] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0041] As Figures 1-6 shown, the utility model provides a double -color vertical carousel injection molding machine, and the injection molding machine includes: frame 1, the frame 1 is fixed with bearing plate 10, the bearing plate 10 is installed with carousel 2, and the carousel 2 is used to support lower mould and can drive its lower mould to rotate;Bearing plate 10 is vertically provided with four groups of green columns 21, the upper end of four groups of green columns 21 is equipped with upper mould support 22, and the lower end is installed driving plate 23;The upper end of upper mould support 22 is symmetrically provided with two workstations for installing plastic injection mechanism, and the bottom surface is used to install upper mould;The bottom of bearing plate 10 is equipped with mould cylinder 24, and the telescopic end of mould cylinder 24 is connected to driving plate 23;Four groups of green columns 21 are arranged in isosceles trapezoidal shape;Mould cylinder 24 is used to drive green column 21 to drive upper mould support 22 to move up and down relative to carousel 2.

[0042] The double -color vertical carousel injection molding machine provided by the utility model reduces the gravity of upper mould support 22 by setting mould cylinder 24 and quick cylinder 25 at the bottom of bearing plate 10, so that the overall gravity center of the injection molding machine is lowered, thereby reducing the vibration when mould cylinder 24 drives upper mould support 22 to move relative to carousel 2, improving the stability and service life of the injection molding machine as a whole;The stability of upper mould support 22 when moving up and down is further increased by arranging four groups of green columns 21 in isosceles trapezoidal shape, on the other hand, since the spacing of the two groups of green columns 21 in front of frame 1 is greater than the spacing of the two groups of green columns 21 at the rear, the horizontal space for workers to take and place lower mould and injection molding products is increased, and the practicability of the injection molding machine is improved.

[0043] Specifically, as Figure 1 and Figure 2As shown, the top surface of the upper die support 22 is provided with two work stations for installing plastic injection mechanisms, the double-color vertical rotary table injection molding machine disclosed by the utility model can inject two different colors of plastics into the lower die through the two plastic injection mechanisms arranged on the upper die support 22 to perform double-color matching injection molding, meanwhile, the independent plastic injection mechanisms can also be installed on the work stations of the upper die support 22, so that the weight of the upper die support 22 is further reduced, the use stability of the injection molding machine is improved, the plastic injection mechanisms or the plastic injection guns can be flexibly matched and installed on the upper die support 22, so that one machine has multiple uses, the use rate of the injection molding machine is improved, and the manufacturing cost of the injection molding machine is reduced.

[0044] Further, as shown in the drawings, Figure 2 The mold cylinder 24 is provided with two groups and is symmetrically arranged at the bottom of the bearing plate 10, the arrangement of the mold cylinder 24 at the bottom of the bearing plate 10 reduces the gravity center of the injection molding machine as a whole, so that the upper die support 22 is more flexible and stable when performing the mold closing movement relative to the rotary table 2, the gravity of the green column 21 and the vibration during mold closing are reduced, so that the stability and service life of the injection molding machine are further improved; the symmetric arrangement of the two groups of mold cylinders 24 enables the upper die support 22 to stably move up and down, reduces the wear of the green column 21 caused by the gravity center deviation of the upper die support 22, increases the mold closing pressure during mold closing, and increases the mold closing effect on the injection products. Since the oil supply amount of the mold cylinder 24 is large, the generated pressure is also large, but the up-down extension speed is relatively slow, therefore, a quick cylinder 25 is arranged at the bottom of the bearing plate 10 on the left and right of the two groups of mold cylinders 24, and the extension end of the quick cylinder 25 is connected to the driving plate 23; the arrangement of the quick cylinder 25 enables the upper die support 22 and the rotary table 2 to quickly approach and separate, and the mold cylinder 24 can also provide strong pressing force to press the upper and lower molds, so that the structure not only improves the mold closing speed, but also increases the mold closing effect.

[0045] In the embodiment, as shown in the drawings, Figure 2 And Figure 3 The bottom of the bearing plate 10 is provided with a jacking mechanism 4, the jacking mechanism 4 comprises a jacking cylinder 40 fixedly arranged at the bottom of the bearing plate 10, a connecting plate is arranged at the extension end of the jacking cylinder 40, a plurality of jacking rods 41 are arranged on the connecting plate, the jacking rods 41 can sequentially pass through the bearing plate 10 and the rotary table 2 to perform up-down extension movement, when the lower mold on the rotary table 2 is completed injection molding and is pressed and formed, the rotary table 2 rotates the lower mold to the upper side of the jacking mechanism 4, the jacking rods 41 are driven by the jacking cylinder 40 to jack up the lower mold, so as to facilitate the work personnel to take and place the injection products or replace the lower mold, and the structure improves the practicability and convenience of the injection molding machine.

[0046] In the embodiment, as shown in the drawings, Figure 4As shown, the bottom of the bearing plate 10 is provided with a rotary motor 3, the output end of the rotary motor 3 extends upward through the bearing plate 10, and a drive wheel 30 (gear) is mounted at the end of the output end of the rotary motor 3. The drive wheel 30 is in meshing connection with the turntable 2. Starting the rotary motor 3 drives the drive wheel 30 to rotate to drive the turntable 2 to rotate at any angle. In this embodiment, one lower mold is arranged at every 120 degrees on the turntable 2, and there are three lower molds in total. The three lower molds are replaced at different positions below the upper mold support 22 by the rotary motor 3, thereby improving the production efficiency of the injection molding machine. Further, an annular height limiting step 20 is arranged on the circumferential outer diameter of the turntable 2. The bearing plate 10 is spaced apart from the annular height limiting step 20 and is provided with a plurality of height limiting blocks 101. One end of the height limiting block 101 is fixedly mounted on the bearing plate 10, and the other end extends to the height limiting step 20. Since the diameter of the turntable 2 is large, it is inevitable to have up and down fluctuations during rotation. If the fluctuations are long-term, the center position of the liquid electric slip ring 5 of the turntable 2 will be damaged. Therefore, the cooperation of the height limiting step 20 and the height limiting block 101 prevents the up and down fluctuations of the turntable 2 during rotation, thereby improving the service life of the injection molding machine.

[0047] In this embodiment, as shown in Figure 1 and Figure 5 , an oil tank 6 is mounted at the rear end position of the rack 1. Two first oil pumps 61 are mounted at the top of the oil tank 6 in a spaced apart manner. The two first oil pumps 61 are respectively connected to the two groups of mold cylinders 24 to provide strong oil pressure to the mold cylinders 24 to drive the upper and lower molds to be clamped more effectively. A second oil pump 62 and an oil way plate 60 are also mounted at the top of the oil tank 6. The second oil pump 62 is connected to the oil way plate 60. The quick cylinder 25 is connected to the oil way plate 60 by a pipeline. In addition, the oil way plate 60 can also supply oil to the top lifting cylinder 40 or other oil cylinders. The oil supply mode of the oil tank 6 can control each part of the oil cylinder to work individually, thereby increasing the stability of the oil supply system. A cooler 63 is also mounted on one side of the oil tank 6. The inlet and outlet of the cooler 63 are respectively connected to the oil tank 6 in a conductive manner, so that the hydraulic oil in the oil tank 6 can always maintain the target temperature, thereby preventing the high-temperature attenuation of the hydraulic oil from affecting the pressure of the oil cylinder.

[0048] In this embodiment, as shown in Figure 1 and Figure 6 , a protective cover 11 is vertically mounted at each end of the bearing plate 10, which effectively prevents the operator from being crushed by the machine during work, thereby increasing the safety protection of the operator. Light curtains 15 are mounted on both sides of the protective cover 11 located in front of the rack 1, so that the operator can work safely even if the illumination in the workshop is not enough. A protective ring 12 is also arranged on the circumferential outer diameter of the turntable 2, which prevents sundries or injection molding products from accidentally falling between the turntable 2 and the bearing plate 10 during work, thereby improving the stability of the injection molding machine.

[0049] Further, the control panel 13 is installed at one end of the bearing plate 10 in the front, and the control box 14 is installed on one side of the rack 1, and the whole control system of the injection molding machine can be reasonably arranged through the electric core connection of the control panel 13 and the control box 14, and the operator is also convenient for operation and control of each part of the mechanism.

[0050] The double-color vertical rotary table injection molding machine provided by the utility model is used, first, the two groups of mold cylinders 24 drive the driving plates 23 to move downward to drive the four groups of green columns 21 to drive the upper mold supports 22 to move downward, so as to drive the upper molds installed at the bottom of the upper mold supports 22 to be close to the lower molds installed on the rotary table 2, then the plastic injection mechanism or the plastic injection gun on the upper mold support 22 is used to inject the plastic into the lower mold, the upper mold and the lower mold are clamped under the continuous driving of the two groups of mold cylinders 24, after the clamping is completed, the two groups of mold cylinders 24 are reset, the upper mold supports 22 drive the upper molds to open the mold together with the lower molds, the rotary motor 3 drives the rotary table 2 to rotate to make the lower molds carrying the injection molding products rotate, at the same time, the empty lower molds rotate to the lower part of the upper molds to perform the injection clamping action, finally, the lower molds carrying the injection molding products are lifted by the jacking mechanism 4 so as to be taken and placed by the operator; the cycle operation is performed, and the stability and the production efficiency of the double-color vertical rotary table injection molding machine are improved.

[0051] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form, although the utility model discloses the above preferred embodiment, however, it is not used to limit the utility model, any skilled person in the art, without departing from the technical scheme range of the utility model, when the above disclosed technical content is used to make some changes or modifications as equivalent embodiments of equivalent changes, but as long as it does not depart from the technical scheme content of the utility model, according to the utility model technology, any simple modification, equivalent change and modification of the above embodiment are within the range of the utility model technical scheme.

Claims

1. A two-color vertical carousel injection molding machine characterized by, The utility model relates to a plastic injection molding machine, including: Rack, the rack is fixed with the bearing plate on, the bearing plate is installed with the rotating disc, the rotating disc is used to hold the lower mould and can drive its lower mould to rotate; The bearing plate is vertically equipped with four groups of green columns, the upper end of four groups of green columns is equipped with the upper die support, and the lower end is installed the driving plate;The upper end of the upper die support is symmetrically provided with two workstations for installing the plastic injection mechanism, and the bottom surface is used for installing the upper die; The bottom of the bearing plate is equipped with a mold cylinder, and the telescopic end of the mold cylinder is connected to the driving plate; Among them, four groups of green columns are arranged in isosceles trapezoidal shape;The mold cylinder is used to drive the green column to drive the upper die support to move up and down relative to the rotating disc.

2. A two-color vertical carousel injection molding machine according to claim 1, characterized in that, The mold cylinder is provided with two groups, and the two groups of mold cylinders are symmetrically arranged on the bottom of the bearing plate.

3. A two-color vertical carousel injection molding machine according to claim 2, wherein, The quick cylinder is installed on the left and right sides of the two groups of mold cylinders of the bearing plate respectively, and the telescopic end of the quick cylinder is connected to the driving plate.

4. A two-color vertical carousel injection molding machine according to claim 1 wherein, The bottom of the bearing plate is equipped with a rotary motor, the output end of the rotary motor extends upward through the bearing plate and is equipped with a driving wheel, and the driving wheel is drivingly connected with the rotating disc.

5. A dual color vertical carousel injection molding machine as claimed in claim 1 wherein, The bottom of the bearing plate is equipped with a jacking mechanism, the jacking mechanism includes a jacking cylinder and a plurality of jacking rods arranged on the jacking cylinder, and the plurality of jacking rods are sequentially arranged through the bearing plate and the rotating disc to perform jacking movement on the lower mould.

6. A two-color vertical carousel injection molding machine according to claim 1 wherein, The center position of the rotating disc is equipped with a liquid-electric slip ring, and the rotating disc is rotatably connected with the bearing plate through the liquid-electric slip ring.

7. A two-color vertical carousel injection molding machine according to claim 6, wherein The circumferential outer diameter of the rotating disc is provided with a height limiting step, the bearing plate is provided with a plurality of height limiting blocks along the circumferential outer diameter of the rotating disc, and one end of the height limiting block extends to the height limiting step.

8. A two-color vertical carousel injection molding machine according to claim 7, wherein, The rear end of the rack is equipped with an oil tank, the top of the oil tank is provided with an oil way plate, a first oil pump and a second oil pump, and the side of the oil tank is equipped with a cooler for cooling hydraulic oil.

9. A two-color vertical carousel injection molding machine according to claim 8, wherein, The left and right ends of the bearing plate are equipped with protective covers, and the circumferential outer diameter of the rotating disc is provided with a protective ring.

10. A two-color vertical carousel injection molding machine as claimed in claim 9, characterized in that The end of the bearing plate away from the oil tank is equipped with a control panel, one side of the rack is equipped with a control box, and the control panel and the control box are electrically connected.

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