CN204820144U - Multistation injection molding machine - Google Patents

Abstract

The utility model relates to the technical field of injection molding machines, in particular to a multi-station injection molding machine. The multi-station injection molding machine comprises a frame, an upper mold plate located above the frame, and a lifting mechanism for driving the upper mold plate up and down. An injection device is arranged above the upper template, and the frame is also provided with a lower template below the upper template and a rotating mechanism that drives the lower template to rotate, the upper template is provided with a fixed mold installation position, and the lower template is set There are a plurality of movable mold installation positions respectively corresponding to the fixed mold installation positions when rotating. The multi-station injection molding machine of the utility model can install multiple movable molds at the same time through multiple movable mold installation positions, and multiple movable molds can share and carry out multiple processes at the same time, thereby saving the time of the entire injection molding cycle and improving injection molding efficiency. It saves a lot of time, manpower and material resources, the cost of injection molding will also be greatly reduced, the input cost will be reduced, and the competitiveness in the market will be improved.

Description

Multi-station injection molding machine

technical field

The utility model relates to the technical field of injection molding machines, in particular to a multi-station injection molding machine.

Background technique

Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment that can make thermoplastics or thermosetting plastics into various shapes of plastic products using plastic molding molds. In the existing injection molding machines, the usual injection molding mode is single-station, that is, one fixed mold is configured with one movable mold to work. Among them, the injection molding cycle is generally: implantation (a process included in implant injection molding), injection molding, pressure retention, cooling and ejection five processes. However, when the existing single-station injection molding machine performs injection molding, all the processes of the injection cycle are completed in a fixed mold and a moving mold, and the subsequent process needs to be completed when the previous process is completely completed. Especially during the cooling process, it needs to stay for a long period of time. During this period of time, other processes cannot be operated. It takes a long time to complete the entire injection molding cycle, and the production efficiency is low. The time invested in the production process, Manpower and material resources increase accordingly, and production cost is high.

Utility model content

The purpose of the utility model is to provide a multi-station injection molding machine which has high injection molding efficiency and can save time, manpower and material resources for the deficiencies of the prior art.

In order to achieve the above purpose, the technical solution of the utility model is: a multi-station injection molding machine, including a frame, an upper template located above the frame, and a lifting mechanism that drives the upper template to lift up and down, and the upper template An injection device is provided, and the frame is also provided with a lower template located below the upper template and a rotating mechanism that drives the lower template to rotate. The upper template is provided with a fixed mold installation position, and the lower template is provided with a The fixed mold installation positions correspond to a plurality of movable mold installation positions respectively.

Preferably, there are six moving mold installation positions and they are evenly distributed on the lower formwork radially.

Preferably, the rotation mechanism includes a motor, a driving gear connected to the motor, and an external gear formed on the outer periphery of the lower template, and the external gear is engaged with the driving gear.

Preferably, an ejection hole is provided at the installation position of the movable mold, and an ejection cylinder is provided below the ejection hole, and an ejection rod corresponding to the ejection hole is connected to the ejection cylinder.

Preferably, an injection hole is opened at the installation position of the fixed mold, and the injection device includes a nozzle, and the nozzle is located above the injection hole.

Preferably, the lifting mechanism includes a lifting cylinder, a lifting auxiliary plate and a plurality of lifting guide shafts. The two ends are respectively connected with the upper template and the lifting auxiliary plate, and the lifting auxiliary plate is drivingly connected with the lifting oil cylinder.

Preferably, there are three lift guide shafts arranged in a triangular shape, one of the lift guide shafts is passed through the middle of the lower formwork and the lower formwork rotates around the lift guide shaft, and the lift guide shaft A bearing is arranged between the shaft and the lower template.

Preferably, the bearing is a ball bearing.

Preferably, a protective baffle is provided on the periphery above the frame.

Preferably, the multi-station injection molding machine further includes a controller, and the lifting mechanism, the injection device, and the rotating mechanism are respectively electrically connected to the controller.

Beneficial effects of the utility model: when the multi-station injection molding machine of the utility model is used, a fixed mold is installed on the fixed mold installation position set on the upper template, and a plurality of movable molds are respectively installed on a plurality of fixed molds set on the lower template. The moving mold is installed at the installation position, and the work is started. The lifting mechanism drives the upper template down to make the fixed mold cooperate with one of the movable molds installed on the lower template. At this time, the injection device injects molten plastic between the matched fixed mold and the movable mold. At the same time, the lifting device drives the upper template again to drive the fixed mold to rise. At the same time, the rotary mechanism drives the lower template to rotate so that another movable mold installed on the lower template moves to the lower position corresponding to the fixed mold. The lifting mechanism drives the upper template again to drive the fixed mold The mold descends and cooperates with the movable mold, and the injection device injects the molten plastic again, and the cycle is repeated to ensure that each movable mold cooperates with the fixed mold one by one for plastic injection molding. The multi-station injection molding machine of the utility model can install multiple movable molds at the same time through multiple movable mold installation positions, and multiple movable molds can share and carry out multiple processes at the same time, thereby saving the time of the entire injection molding cycle and improving injection molding efficiency. It saves a lot of time, manpower and material resources, the cost of injection molding will also be greatly reduced, the input cost will be reduced, and the competitiveness in the market will be improved.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the structural representation when the utility model is installed with fixed mold and movable mold.

Fig. 3 is another schematic diagram of the structure when the utility model is equipped with a fixed mold and a movable mold.

Fig. 4 is a structural schematic diagram of the upper formwork of the present invention.

Fig. 5 is a structural schematic diagram of the lower formwork of the present invention.

Fig. 6 is a structural schematic diagram of the utility model with some components hidden.

Fig. 7 is another structural schematic diagram of the utility model with some components hidden.

Reference signs include:

10—frame 11—protective baffle 20—upper formwork

21—fixed mold installation position 22—injection hole 30—lower template

31—moving mold installation position 32—ejection hole 33—bearing

40—lifting mechanism 41—lifting cylinder 42—lifting auxiliary plate

43—lifting guide shaft 50—rotating mechanism 51—motor

52—driving gear 53—external gear 60—injection device

61—nozzle 70—ejection cylinder 71—ejection rod

80—fixed mold 90—moving mold 100—controller.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

It should be noted that the orientation terms such as left, right, up, down, top, and bottom in this embodiment are only relative concepts or refer to the normal use state of the product, and should not be considered as limiting sexual.

As shown in Figures 1 to 7, the multi-station injection molding machine provided by the embodiment of the present invention includes a frame 10, an upper template 20 located above the frame 10, and a lifting mechanism 40 for driving the upper template 20 up and down, The top of the upper template 20 is provided with an injection device 60, and the frame 10 is also provided with a lower template 30 below the upper template 20 and a rotary mechanism 50 for driving the rotation of the lower template 30, and the upper template 20 is provided with a fixed mold installation position 21 ( See Figure 4 for details), the lower template 30 is provided with a plurality of movable mold installation positions 31 corresponding to the fixed mold installation positions 21 when rotating (see Figure 5 for details).

Specifically, the upper formwork 20 is located above the central position of the lower formwork 30, the fixed mold installation position 21 is located on the bottom surface of the upper formwork 20, and the movable mold installation position 31 is located on the top surface of the lower formwork 30; this kind of structural design can ensure that the lower formwork 30 is driven and rotated by the rotary mechanism 50 , the multiple movable mold mounting positions 31 of the lower template 30 can be set to correspond to the positions of the fixed mold mounting positions 21 provided on the upper template 20 one by one.

The multi-station injection molding machine of this embodiment can be used with various fixed molds 80 and movable molds 90 .

Referring to Fig. 2 and Fig. 3, among them, fixed mold installation position 21 and movable mold installation position 31 can offer a plurality of small holes to be used for fixedly installing fixed mold 80 and movable mold 90 respectively, and fixed mold 80 and movable mold 90 can pass screws or Bolts are installed on each small hole, which can effectively meet the installation of fixed mold 80 and movable mold 90 of different sizes, and meet the needs of injection molding products with different sizes and shapes. It is very flexible in use and has a wide range of applications.

During use, a fixed mold 80 is installed on the fixed mold installation position 21 that upper template 20 is provided with, and a plurality of movable molds 90 are respectively installed on the plurality of movable mold installation locations 31 that lower template 30 is provided with, for example, can install three One moving mold 90, four moving molds 90, five moving molds 90, six moving molds 90, etc. When the installation of the fixed mold 80 and the movable mold 90 is completed, the work of the injection molding machine can be started. When the work is carried out, the lifting mechanism 40 drives the upper template 20 to descend so that the fixed mold 80 and the lower template 30 installed on the fixed mold installation position 21 One of the movable molds 90 installed in the movable mold installation position 31 is matched, and the matched fixed mold 80 and the movable mold 90 form a cavity for product molding. At this time, the injection device 60 injects molten plastic into the matched fixed mold 80 and In the cavity between the movable molds 90, the lifting device drives the upper template 20 again to drive the fixed mold 80 to rise, and at the same time, the rotating mechanism 50 drives the lower template 30 to rotate so that another movable mold 90 installed on the lower template 30 moves to the same position as the fixed mold. At the lower position corresponding to 80, the lifting mechanism 40 again drives the upper mold plate 20 down to drive the fixed mold 80 down to cooperate with the movable mold 90, and the injection device 60 injects the molten plastic again, and cycles in sequence to ensure that each movable mold 90 is connected with the fixed mold one by one. 80 with plastic injection molding.

Obviously, the multi-station injection molding formed by the utility model can realize the simultaneous division of labor of multiple movable molds 90, that is, one movable mold 90 can be implanted, one movable mold 90 can realize injection molding and pressure retention, and one or more movable molds 90 Air cooling is realized, and one movable mold 90 realizes ejection, which is carried out simultaneously through multiple movable molds 90, thereby saving the injection molding cycle. The cost of injection molding will also be greatly reduced, which is specifically reflected in: the cost of N-1 fixed mold 80 is saved in mold costs, where N is the number of multi-stations; that is, the injection molding capacity that originally required multiple injection molding machines can only be realized. A multi-station injection molding machine of the utility model can be realized. In this way, other related expenses such as the relatively invested capital of the enterprise, factory buildings, water and electricity charges, and the number of people operating the injection molding machine are also correspondingly reduced, the production capacity is increased, and the benefit is increased. Effectively enhance the competitiveness in the market.

The injection molding cycle generally includes implantation (a procedure included in implantation injection molding), injection molding, pressure retention, cooling and ejection. In this embodiment, six movable mold mounting positions 31 are preferably provided with six movable molds. The mounting positions 31 are radially and evenly distributed on the top surface of the lower template 30 . Specifically, six movable mold installation positions 31 are respectively equipped with a movable mold 90. During operation, one movable mold 90 can be implemented for implantation, one movable mold 90 can be used for injection molding and pressure retention, and one or more movable molds 90 can be used for air injection. Cooling, one movable mold 90 realizes ejection, sharing the work, and installing six movable molds 90 in an even distribution makes it easier to control the rotation range of the lower template 30 through the rotating mechanism 50, so as to facilitate work according to the set rotation range of the lower template 30.

In this embodiment, see FIG. 6 , the rotating mechanism 50 includes a motor 51 , a driving gear 52 drivingly connected with the motor 51 , and an external gear 53 formed on the outer periphery of the lower template 30 , and the external gear 53 is engaged with the driving gear 52 . Specifically, the rotation of the main shaft of the motor 51 drives the driving gear 52 connected to the main shaft to rotate, and the driving gear 52 directly drives the lower template 30 to rotate through the external gear 53 meshed with it, and the lower template 30 rotates and drives the fixed and movable mold. The movable mold 90 at the installation position 31 rotates, so as to drive a plurality of movable molds 90 to correspond to the positions of the fixed mold 80 when rotating.

Of course, the rotating mechanism 50 is not limited to the above-mentioned components, and the rotating mechanism 50 formed by a servo motor and a reducer can also be used to drive the lower template 30 to rotate.

In this embodiment, an ejection hole 32 is provided at the installation position 31 of the movable mold, see one of the ejection holes 32 marked in FIG. , The ejector cylinder 70 is connected with an ejector rod 71 corresponding to the ejector hole 32 . Specifically, when the ejection process is carried out, the ejection cylinder 70 drives the ejection rod 71 connected to it to expand and contract by controlling the expansion and contraction of the piston rod. During the rising process of the ejection rod 71, the ejection rod 71 is moved from the movable mold installation position 31 The ejection hole 32 that offers will eject the product of injection molding. in.

The ejector mechanism in this embodiment is not limited to use the ejector cylinder 70 as the power source, as long as other power sources that can control the extension and contraction of the ejector rod 71 can also be used. For example, the ejector cylinder 70 can be replaced by a cylinder, which can also be controlled. Telescopic movement of ejector rod 71.

In this embodiment, an injection hole 22 is provided at the fixed mold installation position 21 . As shown in FIG. 4 and FIG. 6 , the injection device 60 includes a nozzle 61 located above the injection hole 22 . Specifically, the setting of the injection hole 22 is convenient for the nozzle 61 to inject molten plastic into the matched fixed mold 80 and the movable mold 90 through the injection hole 22. Through this structural design, the installation of the injection device 60 is convenient, and the design is ingenious. This makes the structure of the entire multi-station injection molding machine more compact, and correspondingly reduces the occupied space of the multi-station injection molding machine.

In addition, the injection device 60 also includes components such as an injection seat, an injection piston rod, a transmission shaft, an oil motor, and a screw. The injection device 60 is a common injection molding tool in this technical field, and will not be described in detail here.

6, in this embodiment, the lifting mechanism 40 includes a lifting cylinder 41, a lifting auxiliary plate 42 and a plurality of lifting guide shafts 43. The frame 10 and its two ends are respectively connected with the upper template 20 and the lifting auxiliary plate 42, and the lifting auxiliary plate 42 is drivingly connected with the lifting cylinder 41. When the lifting mechanism 40 works, the piston rod of the lifting cylinder 41 operates, and the piston rod drives the lifting auxiliary plate 42 to move up and down. Since the bottom end of each lifting guide shaft 43 is fixedly connected with the lifting auxiliary plate 42 and the top end is fixedly connected with the upper template 20 , that is, by driving the lifting auxiliary plate 42 to move up and down, the lifting auxiliary plate 42 can drive the upper template 20 to move up and down through a plurality of lifting guide shafts 43, thereby realizing driving the fixed mold 80 fixedly installed at the fixed mold installation position 21 Moving up and down can make the fixed mold 80 cooperate with the movable mold 90 installed and fixed with the movable mold installation position 31 of the lower template 30 . The lifting cylinder 41 can generate enough power to drive the lifting auxiliary plate 42 to drive the upper template 20 to move up and down, and the control stability of the lifting cylinder 41 is very good, which can avoid accidents.

The design of the lifting mechanism 40 in this embodiment can ensure that the lifting cylinder 41 as a power source is arranged below the lower template 30 and inside the frame 10, avoiding that the installation position of the lifting mechanism 40 overlaps with the installation position of the injection device 60 , the space in the frame 10 is effectively used, and the installation of each component does not affect the work of each other, which further makes the structure of the whole multi-station injection molding machine compact.

In this embodiment, there are three lifting guide shafts 43 arranged in a triangular shape. This structural arrangement can improve the balance and stability when controlling the upper and lower movement of the upper formwork 20, and avoid inclination of one side of the upper formwork 20. One of the lifting guide shafts 43 penetrates the middle part of the lower formwork 30 and the lower formwork 30 rotates with the lifting guide shaft 43 as the center of a circle. See FIG. Specifically, the position of the fixed mold installation position 21 is roughly located in the middle of the three lifting guide shafts 43. When the rotating mechanism 50 controls the lower template 30 to rotate around the root lifting guide shaft 43 passing through the lower template 30, the fixed mold The position of the installation position 21 just corresponds to the movable mold installation position 31 provided on the lower formwork 30, so that it can be ensured that the fixed mold 80 fixedly installed at the fixed mold installation position 21 and the upper and lower positions of the movable mold 90 fixedly installed at the movable mold installation position 31 The positions correspond to each other, and the matching precision is high, ensuring a high yield rate of subsequent injection molded products.

More specifically, a bearing 33 is provided between the lifting guide shaft 43 and the lower template 30 . The setting of the bearing 33 can ensure that the lower template 30 can rotate around the lifting guide shaft 43 passing through the lower template 30 .

Wherein, the bearing 33 is preferably a ball bearing, and the ball bearing has a small rotational frictional resistance and a better use effect.

In addition, since the multiple parts of the multi-station injection molding machine will have a relatively high temperature when performing injection molding, and the high-temperature molten plastic ejected from the nozzle 61 of the injection device 60 may splash out, the present embodiment A protective baffle 11 is provided on the upper periphery of the frame 10 of the multi-station injection molding machine. The protective baffle 11 is surrounded by three plates to form a "冂" shape, and the "冂" shaped protective baffle 11 has a gap , the gap is for the staff to observe the real-time working status of the multi-station injection molding machine and to carry out the work of taking out the injection molding, that is, it can not only improve the safety factor of the utility model when it is working, and prevent production and installation accidents; it can also ensure that the staff can observe normally. The utility model has the advantages of real-time working status and work such as taking out injection molding, reasonable structural design, and stronger practical performance.

Further, the multi-station injection molding machine of this embodiment also includes a controller 100, wherein the controller 100 can be a PLC controller 100, and the lifting mechanism 40, the injection device 60, and the rotating mechanism 50 are electrically connected to the controller 100, respectively. Specifically, a program can be programmed on the controller 100, and the controller 100 works according to the set program, that is, the controller 100 can coordinate and control the work of the lifting mechanism 40, the injection device 60, and the rotating mechanism 50 to ensure that each process works step by step. , to achieve intelligent control, high production efficiency.

In summary, it can be seen that the utility model has the following excellent characteristics: 1. The space of the multi-station injection molding machine is rationally utilized, and the overall structure is compact; 2. The safety factor is high, and safety accidents can be avoided; 3. The cooperation between components High precision, high yield rate of injection molded products; 4. Shorten the entire injection molding cycle and improve injection molding efficiency; 5. Realize intelligent control; 6. Save a lot of time, manpower and material resources, and the cost of injection molding will also be greatly reduced, and the input cost will be reduced , to enhance the competitiveness in the market; so that it can be used to improve the performance that is unprecedented in the previous technology and have practicality, and become a product of great practical value.

The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and scope of application. The content of this specification should not be understood as Limitations on the Invention.

Claims (10)

1. Multi-station injection molder, comprise frame, be positioned at the cope match-plate pattern above described frame and drive the elevating mechanism of described cope match-plate pattern oscilaltion, the top of described cope match-plate pattern is provided with injection device, it is characterized in that: described frame is also provided with the lower bolster be positioned at below described cope match-plate pattern and the rotating mechanism driving lower bolster to rotate, described cope match-plate pattern is provided with cover half installation position, distinguishes corresponding multiple dynamic model installation positions when described lower bolster is provided with rotation with described cover half installation position.

2. Multi-station injection molder according to claim 1, is characterized in that: described dynamic model installation position has six and is radially distributed in described lower bolster.

3. Multi-station injection molder according to claim 1, it is characterized in that: described rotating mechanism comprises motor, drives the driving gear be connected and the external gear forming in described lower bolster outer peripheral edge with described motor, and described external gear and described driving gear are connected with a joggle.

4. Multi-station injection molder according to claim 1, is characterized in that: described dynamic model installation position place offers and ejects hole, described in eject hole below be provided with ejection cylinder, described ejection cylinder is connected with and ejects knock-pin corresponding to hole with described.

5. Multi-station injection molder according to claim 1, is characterized in that: described cover half installation position place offers injection orifice, and described injection device comprises nozzle, and this nozzle is positioned at the top of described injection orifice.

6. Multi-station injection molder according to claim 1, it is characterized in that: described elevating mechanism comprises hoist cylinder, lifting accessory plate and Duo Gen and is elevated the axis of guide, described hoist cylinder is arranged at the below of described lower bolster, many described lifting axis of guides are arranged in described frame and its two ends are connected with described cope match-plate pattern and described lifting accessory plate respectively, and described lifting accessory plate drives with described hoist cylinder and is connected.

7. Multi-station injection molder according to claim 6, it is characterized in that: the described lifting axis of guide has three and shape triangular in shape is arranged, wherein described lifting axis of guide be arranged in the middle part of described lower bolster and described lower bolster with this lifting axis of guide for rotating in the center of circle, be provided with bearing between this lifting axis of guide and described lower bolster.

8. Multi-station injection molder according to claim 7, is characterized in that: described bearing is ball bearing.

9. the Multi-station injection molder according to claim 1 ~ 8 any one, is characterized in that: the periphery above described frame is provided with protective baffle plate.

10. the Multi-station injection molder according to claim 1 ~ 8 any one, is characterized in that: also comprise controller, and described elevating mechanism, described injection device, described rotating mechanism are electrically connected with described controller respectively.