CN201824511U - Two-color injection molding machine - Google Patents

Abstract

A double-color injection molding machine comprises a machine table, a mold clamping unit capable of rotating relative to the machine table, and a pipeline storage unit. The pipeline storage unit is provided with a jacket fixedly arranged on one bottom surface of the die clamping unit, a shaft tube driven by the die clamping unit and capable of being relatively rotatably arranged in the jacket in a penetrating mode, a ring seat fixed on one bottom surface of the jacket, and a storage rack fixed on the bottom surface of the die clamping unit and surrounding the jacket and the ring seat. Mainly, the pipeline matched and connected with the clamping die unit can be penetrated in the shaft tube, part of the pipeline can penetrate out of the shaft tube and the envelope to be collected, and part of the pipeline can penetrate out of the shaft tube and the ring seat and can be wound on the ring seat, and the auxiliary of the containing frame is matched to ensure that the pipeline cannot be twisted off, overflowed, curled or scattered when the clamping die unit rotates.

Description

Two-color injection molding machine

technical field

The utility model relates to an injection molding machine, in particular to a two-color injection molding machine used to manufacture products with two colors (or materials). the

Background technique

Two-color injection molding (Bi-injection) refers to the use of plastics of two colors or materials to manufacture products that can show a two-color or two-material block effect in appearance. the

Generally speaking, a two-color injection molding machine has two independent discharge units (injecting plastics of different colors or materials respectively) and two molds, and the master molds of the two molds are movably connected to the two In the discharging unit, the male molds of the two molds are respectively fixed on the opposite two surfaces of a rotary template that can rotate back and forth through 180 degrees. Therefore, the two female molds will be engaged with the two male molds for one injection, and then the mold will be opened, and the rotary template will be rotated 180 degrees to change the position of the male molds, so that the two female molds will be in contact with the two male molds again. The two male molds are joined, the material is injected twice, and the mold is opened and then demoulded, so that a two-color or double-material product can be produced. the

As mentioned above, in the process of two-color injection molding, because the male mold fixed on the rotary template will rotate, the pipelines that are connected with the male mold and used to transport oil, water, air and other media will rotate with the male mold. Problems such as curling, twisting, overflowing or scattering will even affect the molding operation, which makes the industry very troubled. In view of this, the applicant in this case is especially concerned with the pipelines that are connected to the movable mold of the two-color injection molding machine. A structure that can be accommodated and protected is designed to overcome the problems caused by such pipelines. the

Utility model content

The purpose of the utility model is to provide a two-color injection molding machine that can effectively overcome the problems of curling, twisting, overflowing or scattering of pipelines caused by the movement of the mold. the

The two-color injection molding machine of the present utility model comprises a machine table, a first injection unit, a second injection unit, and a machine table which can be relatively rotatably arranged on the machine table and is located between the first injection unit and the second injection unit. The clamping unit between them, and a pipeline storage unit; the first injection unit has a first mold wall arranged on the machine platform, and a first master mold arranged on a wall surface of the first mold wall; the The second injection unit has a second mold wall that is arranged on the machine platform and faces the first mold wall in parallel, and a second mold wall that is arranged on a wall surface of the second mold wall facing the first mold wall. Mother mold; the mold clamping unit has a base set on the machine table, a turntable which can be relatively rotatably set on the base and has a wire groove on its top, and a piece which is fixed upright on the turntable and faces parallel to the The rotary car wall of the second mold wall and the first mold wall, a first male mold that is arranged on a wall surface of the rotary car wall and can alternately press the first female mold and the second female mold, and a The second male mold which is arranged on the other wall surface of the revolving car wall and can alternately press the second female mold and the first female mold; the pipeline storage unit has an envelope arranged on a bottom surface of the base, a through set and fixed in the turntable and relatively rotatable through the shaft tube in the base and the envelope, a ring seat arranged on a bottom surface of the envelope, and a ring seat arranged on the bottom surface of the base and surrounding the envelope With the storage frame of the ring seat, the opposite ends of the shaft tube are open and communicate with the wire slot and the interior of the ring seat respectively. the

In the two-color injection molding machine described in the utility model, the ring seat of the pipeline storage unit has a circular chassis body, a C-shaped ring body arranged on the chassis body, and a top from the ring body. The edge extends outwards and faces a ring lip of the chassis body that protrudes from an outer side of the ring body, and the ring lip is connected to the bottom surface of the envelope. the

In the two-color injection molding machine described in the utility model, the storage rack of the pipeline storage unit has a plurality of struts spaced apart around the envelope and the ring seat and one top end of which is connected to the bottom surface of the base, and a support rod located on the ring seat Below and connected to the carrier tray at one bottom end of the pole. the

In the two-color injection molding machine described in the present invention, the pipeline storage unit also has at least one pipeline concentration chain whose top is connected to the bottom surface of the base. the

The effect of the utility model is that the pipeline connected to the first male mold and the second male mold can be placed in the wire slot and inserted into the shaft tube, and then pass through the shaft tube and the envelope to Separately collect, or pass through the shaft tube to be wound on the ring seat, with the assistance of the storage frame, the pipeline will not be twisted, spilled, curled or scattered during the rotation of the clamping unit . the

Description of drawings

Fig. 1 is a sectional view illustrating a preferred embodiment of the two-color injection molding machine of the present invention, which is in a mold-opening state;

Fig. 2 is an end view of this preferred embodiment;

Fig. 3 is a sectional view illustrating the structural relationship between a beam of the preferred embodiment, two rotating parts, a revolving car wall and a pipeline storage unit;

Fig. 4 is a sectional view, illustrates that this preferred embodiment is the first mold closing injection molding state;

Fig. 5 is a sectional view illustrating that the preferred embodiment is in a state of double clamping injection molding. the

Detailed ways

The utility model is described in detail below in conjunction with accompanying drawings and embodiments. the

As shown in Figures 1 to 3, the preferred embodiment of the two-color injection molding machine of the present invention, the two-color injection molding includes a machine 1, a first injection unit 2 fixed on one side of the machine 1, A second injection unit 3 that can be relatively translated and arranged on the other side of the machine platform 1, and a second injection unit 3 that can be relatively translated and installed on the machine platform 1 and is located between the first injection unit 2 and the second injection unit 3 The clamping unit 4 between them, a guide unit 5 for stably translating the second injection unit 3 and the clamping unit 4, and a guide unit 5 for driving the second injection unit 3 and the clamping unit 4 relative to the machine The driving unit 6 for the movement of the table 1, and a pipeline storage unit 7 for storing and protecting the pipeline connected with the mold clamping unit 4. the

The first injection unit 2 has a first mold wall 21 erected on the machine 1, a first mother mold 22 arranged on a wall surface of the first mold wall 21, and a mold that passes through the first mold. The opposite two walls of the wall 21 can be poured into the first horizontal material tube 23 in the first female mold 22 . the

The second injection unit 3 has a second mold wall 31 that can be vertically arranged on the machine table 1 and parallel to the first mold wall 21, and a second mold wall 31 that is arranged on the second mold wall 31 and faces the first mold wall. A second female mold 32 on one wall surface of a mold wall 21 , and a second horizontal material tube 33 passing through two opposite walls of the second mold wall 31 and capable of pouring material into the second female mold 32 . In this embodiment, the first horizontal material tube 23 and the second horizontal material tube 33 can respectively provide plastics of different colors. the

The mold clamping unit 4 has a base 41 that can be relatively translated on the machine table 1, a turntable 42 that can be relatively rotatable on a top surface of the base 41, and a piece that is parallel to the second mold wall. 31 and the first mold wall 21 and a bottom surface of which is fixedly connected to the rotary car wall 43 of the turntable 42, and one is arranged on a wall surface of the rotary car wall 43 and can alternately press the first female mold 22 and the second female mold. A first male mold 44 of the mold 32, and a second male mold 45 arranged on the other wall surface of the rotary car wall 43 and capable of pressing the second female mold 32 and the first female mold 22 alternately. the

Wherein, a top of the turntable 41 has a cross-shaped wire slot 47, a top of the revolving car wall 43 has two spaced and downwardly recessed protruding grooves 46, and the revolving car wall 43 can be positioned at a certain position. A certain point rotates 180 degrees reciprocatingly relative to the machine platform 1, and can also translate left and right relative to the machine platform 1. the

As shown in FIGS. 1 and 4 , the mold clamping unit 4 can translate relative to the machine table 1 between a mold opening position and a mold closing position. When the clamping unit 4 moves to the right to the clamping position (see Figure 4) and presses the first injection unit 2, the second injection unit 3 will also move right to press the clamping unit 4, at this time The mold clamping unit 4 is clamped between the second injection unit 3 and the first injection unit 2, so that the first male mold 44 is engaged with the first female mold 22, and the second male mold 45 is connected with the second female mold. The mold 32 engages; then, when the mold clamping unit 4 moves left from the clamping position to the mold opening position (see Figure 1) and breaks away from the first injection unit 2, the second injection unit 3 will also move to the left and Break away from the mold clamping unit 4, in particular, the revolving car wall 43 cannot rotate relative to the machine table 1 during the translation process, so as to ensure that the revolving car wall 43 translates stably without deflection, and only in this mold opening position Only at this position can the rotary car wall 43 be controlled to rotate 180 degrees relative to the machine platform 1, so that the positions of the first male mold 44 and the second male mold 45 are reversed left and right. the

As shown in Figures 1 to 3, the guide unit 5 has a support beam 51 pivotally arranged on a top surface of the revolving vehicle wall 43, two horizontally parallel upper guide columns 52, two horizontally parallel The lower guide post 53, and two spaced and vertically penetrating stoppers 54 arranged in the support beam 51. The two upper guide columns 52 run through the opposite sides of a top of the second mold wall 31, the opposite sides of the beam 51, and the opposite sides of a top of the first mold wall 21, and the two A lower guide post 53 runs through the opposite sides of a bottom of the second mold wall 31, and the opposite sides of a bottom of the first mold wall 21, so that the second injection unit 3 and the mold clamping unit 4 Under the guidance of the two upper guide posts 52 and the two lower guide posts 53 , it can stably reciprocate and translate. the

Furthermore, a bottom of the support beam 51 has two spaced apart and upwardly recessed shrinkage grooves 55 , and the two shrinkage grooves 55 are respectively connected to the two protruding grooves 46 of the revolving vehicle wall 43 . And each stopper 54 has a straight type pushing cylinder 56 that is inserted in the support beam 51 and a bottom end of which penetrates in one of the shrinkage grooves 55, and a straight type push cylinder body 56 fixed on the straight type push cylinder 56. A positioning block 57 that presses the bottom end of the cylinder body 56 and can reciprocate up and down between the retraction groove 55 and the protruding groove 46 . When the mold clamping unit 4 is at the mold opening position, the straight push cylinder 56 pulls the positioning block 57 upwards and moves it into the retraction groove 55, and the rotary car wall 43 can move relative to the support. The beam 51 rotates 180 degrees, and when the mold clamping unit 4 is at the clamping position or in the process of translation, the straight push cylinder 56 will position the block 57 (shown by the imaginary line in Fig. 3 ) Pushing down into the protruding groove 46 , the revolving vehicle wall 43 is restrained from rotating relative to the support beam 51 . In this embodiment, the two straight pushing cylinders 56 are pneumatic cylinders, and may also be hydraulic cylinders. the

The drive unit 6 has six horizontal push cylinders 61 that are spaced up and down in parallel and move linearly in the same direction, and a cylinder that is arranged under the bottom surface of the turntable 42 and is used to drive the turntable 42 to rotate back and forth 180 degrees relative to the base 41. Transmission motor 62, one rod end of described six horizontal push cylinders 61 is respectively connected to the opposite two sides of a top surface of this support beam 51, the opposite two sides of this base 41, and this second mold wall 31 The two diagonally opposite sides are used to drive the second injection unit 3 and the mold clamping unit 4 to translate left and right relative to the machine table 1 . In this embodiment, the six horizontal pushing cylinders 61 are pneumatic cylinders, and may also be hydraulic cylinders. the

As shown in Fig. 1, Fig. 4 and Fig. 5, in the process of using the two-color injection molding machine to manufacture two-color products, the first male mold 44, the second Two male molds 45 respectively engage the first female mold 22 and the second female mold 32, allowing the first horizontal material tube 23 and the second horizontal material tube 33 to pour materials into the first male mold 44 and the second female mold 44 respectively. In the male mold 45, carry out mold opening for the first time (seeing Fig. 1) then, make this first male mold 44 separate with this first female mold 22, this second male mold 45 separate with this second female mold 32, and in this After the mold clamping unit 4 moves to the mold opening position, release the two stoppers 54 from the stopper effect on the turntable wall 43, let the transmission motor 62 drive the turntable 42 to rotate 180 degrees, and simultaneously drive the turntable The car wall 43 rotates 180 degrees relative to the support beam 5, to exchange the positions of the first male mold 44 and the second male mold 45, and then carry out two clamping injection moldings (seeing Fig. 5 ), the first male mold 44, The second male mold 45 can respectively join the second female mold 32 and the first female mold 22, and the first horizontal material tube 23 and the second horizontal material tube 33 are poured into the second male mold 45 and the first horizontal material tube 33 respectively. In a male mold 44, carry out mold opening twice again, make this first male mold 44 separate with this second female mold 32, this second male mold 45 separate with this first female mold 22, finally demoulding takes out the made Get a two-color finished product. the

In addition, as shown in FIG. 1 and FIG. 3 , the pipeline storage unit 7 has a cover 75 locked on a bottom surface of the base 41 , a cover 75 inserted in the turntable 42 , the base 41 and the cover 75 and can be accessed from A shaft tube 71 that moves on the turntable 42 and rotates relative to the base 41 and the cover 75, a ring seat 72 that is locked on a bottom surface of the cover 75, and a ring seat 72 that is locked on the bottom surface of the base 41 and surrounds the cover 75 and the cover 75. The storage frame 73 of the ring seat 72 and two spaced-apart hollow curved pipeline concentration chains 74 with one top fixed to the bottom surface of the base 41 . the

Wherein, opposite ends of the shaft tube 71 are open and communicate with the wire slot 47 of the turntable 42 and the interior of the ring seat 72 respectively. The ring seat 72 has a circular chassis body 721, a C-shaped ring body 722 that is arranged on the chassis body 721 and can be used for pipelines to rotate, and a top edge of the ring body 722 that extends outwards and faces A ring lip 723 protruding from an outer portion 724 of the ring body 722 relative to the chassis body 721 , the ring lip 723 is locked on the bottom surface of the envelope 75 . The storage frame 73 has four support rods 731 spaced around the envelope 75 and the ring base 72 and one top end of which is locked to the bottom surface of the base 41 , and one is located below the ring base 72 and fixedly connected to the support rods. A carrier plate 732 at a bottom of 731. the

Mainly, it is used to provide media such as oil, air or water for the first male mold 44 and the second male mold 45, and the pipelines connected to the first male mold 44 and the second male mold 45, such as water pipes , oil pipes, air pipes, wire pipes, etc., can be placed in the wire slot 47 of the turntable 42 and passed through the shaft pipe 71, wherein, some pipelines in low temperature and high pressure state (in this embodiment, there are 4 water pipes , 3 oil pipes and 1 air pipe), or pipelines with general temperature and pressure conditions, will pass through the lower half of the pipe wall of the shaft pipe 71 and the surrounding wall of the envelope 75, and enter the pipeline concentration chain 74 , As for other pipelines capable of high temperature and high pressure (in this embodiment, there are 4 rapid cooling and rapid hot water pipes, 2 high pressure gas auxiliary pipes and 1 electric wire pipe), then the bottom end of the shaft pipe 71 and the The notch of the ring body 722 is then wound on the ring body 722 . In order to, when the mold clamping unit 4 rotates relative to the machine table 1, the pipeline can be rotated in coordination without curling, spilling or twisting, and the design of the storage frame 73 can also be used Prevent the pipeline from protruding and scattering on the ground. Furthermore, the pipeline concentration chain 74 can transfer the length of the pipeline extending outward from the envelope 75, the ring seat 72 and the storage frame 73, or the wires of the transmission motor 62. It is managed centrally to ensure that when the mold clamping unit 4 translates relative to the machine platform, the pipelines will not spread out. the

Claims (4)

1. A two-color injection molding machine, comprising a machine table, a first injection unit, a second injection unit, and a relatively rotatable set on the machine table and located between the first injection unit and the The mold clamping unit between the second injection unit, the first injection unit has a first mold wall arranged on the machine platform, and a first master mold arranged on a wall surface of the first mold wall, The second injection unit has a second mold wall arranged on the machine table and parallel to the first mold wall, and a second mold wall arranged on the second mold wall facing the first mold wall The second mother mold on one wall, the mold clamping unit has a base set on the machine table, a turntable set on the base in a relatively rotatable manner, a piece fixed upright on the turntable and facing parallel The revolving car wall of the second mold wall and the first mold wall, and a first wall that is arranged on a wall surface of the revolving car wall and can alternately press the first female mold and the second female mold. A male mold, and a second male mold that is arranged on the other wall of the revolving car wall and can alternately press the second female mold and the first female mold; it is characterized in that: The two-color injection molding machine also includes a pipeline storage unit, a top of the turntable has a wire slot, and the pipeline storage unit has a sleeve arranged on a bottom surface of the base, and a sleeve inserted and fixed on the bottom surface of the base. A shaft tube that is relatively rotatably inserted in the base and the envelope in the turntable, a ring seat that is arranged on a bottom surface of the envelope, and a ring seat that is arranged on the bottom surface of the base and surrounds the The envelope and the storage frame of the ring seat, the opposite ends of the shaft tube are open and communicate with the wire slot and the interior of the ring seat respectively. 2. The two-color injection molding machine according to claim 1, wherein the ring seat of the pipeline storage unit has a circular chassis body and a C-shaped ring body arranged on the chassis body, And a ring lip body extending outward from a top edge of the ring body and facing an outer side of the chassis body protruding relatively from the ring body, the ring lip body is connected to the bottom surface of the envelope. 3. The two-color injection molding machine according to claim 2, characterized in that: the storage frame of the pipeline storage unit has a plurality of bottom surfaces surrounding the envelope and the ring seat at intervals and one top end of which is connected to the base The pole, and a carrier plate positioned below the ring seat and connected to a bottom end of the pole. 4. The two-color injection molding machine according to any one of claims 1 to 3, wherein the pipeline storage unit further has at least one pipeline concentration chain whose top is connected to the bottom surface of the base. the

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