CN116551914A - An injection molding machine - Google Patents

Abstract

The invention belongs to the technical field of injection molding equipment, and discloses an injection molding machine, including a machine body, a support seat is fixedly installed on the right side of the top middle of the body, an injection cylinder is fixedly installed on the top of the support seat, and the injection cylinder The middle part of the left end is fixedly connected with an injection molding head. In the present invention, by setting the first baffle plate, the first drive motor and the drive shaft, the rotation of the drive shaft will drive the gear to rotate due to the operation of the first drive motor, and due to the meshing relationship between the gear and the outer surface of the support plate, and then It can drive the support plate to rotate as a whole, so that the support plate and the first baffle plate are constantly dislocated and aligned, and the feeding hopper is closed and opened, which not only allows the heated gas inside the support seat to be discharged well, but also reduces Outside cold air enters, and at the same time, when the device is idle, the feeding hopper can also be sealed to prevent external dust from entering.

Description

An injection molding machine

technical field

The invention belongs to the technical field of injection molding equipment, in particular to an injection molding machine.

Background technique

The principle of the injection molding machine is similar to the syringe used for injection. It uses the thrust of the screw to inject the plasticized molten plastic into the corresponding mold for injection molding. The existing injection molding machines are equipped with corresponding injection channels. Put the plastic into the hopper, then enter the channel, and then use the screw to push the injection molding, and the plastic often needs to be heated inside the channel to avoid cooling and solidification, and the gas generated by heating will be discharged through the hopper, and the gas at the back end of the channel The plastic is far away from the heating mechanism, and the heating effect is poor. At this time, the cold air outside the hopper will enter the interior to accelerate the solidification of this part of the plastic, and when the device is idle, the external dust and impurities will also enter the channel through the hopper, causing internal pollution and affecting subsequent operations. Injection molding quality, so it needs to be improved.

Contents of the invention

The purpose of the present invention is to provide an injection molding machine to solve the problems raised in the background art above.

In order to achieve the above object, the present invention provides the following technical solutions: an injection molding machine, including a body, a support seat is fixedly installed on the right side of the top middle of the body, and an injection cylinder is fixedly installed on the top of the support seat. The middle part of the left end of the barrel is fixedly connected with the injection head, and the top of the body is fixedly installed with a first support frame on the left side of the injection head, and the left side of the injection head extends to the inner wall of the first support frame. The outer surface is fixedly installed with a hot-melt pipe between the injection molding head and the support seat. The right side of the top of the injection cylinder is fixedly connected with a feeding hopper, and the bottom of the inner wall of the feeding hopper is fixedly installed with a support plate. The inner wall is movably socketed with a first baffle above the support plate, and the outer surface on the right side of the hopper is fixedly equipped with a first drive motor located at the upper right of the first baffle, and one end of the output shaft of the first drive motor A drive shaft is fixedly sleeved, and a gear is fixedly sleeved on the outer surface of the bottom end of the drive shaft, and the gear meshes with the outer surface of the first baffle.

Preferably, the middle part of the right side of the injection molding cylinder is fixedly connected with a power motor, and one end of the output shaft of the power motor is fixedly sleeved with a bolt delivery shaft.

Preferably, a second support frame on the left side of the first support frame is movably installed on the top of the body, and a pneumatic cylinder on the left side of the second support frame is fixedly installed on the top of the body, and the right end of the air cylinder is connected to the left side of the second support frame. The bottom end of the left end of the second support frame is fixedly connected, and the top of the body is provided with a limiting groove located under the right side of the second support frame.

Preferably, the middle part of the bottom end of the second support frame is fixedly installed with a limiting block located inside the limiting groove, and the outer surface of the limiting block is movably socketed with the inner wall of the limiting groove.

Preferably, the middle part inside the first support frame and the second support frame is respectively movably installed with a fixed mold and a movable mold, and the inner wall of the first support frame is movably installed with a second stop between the fixed mold and the injection head plate.

Preferably, the right side of the first support frame is fixedly installed with a second driving motor located under the injection head, and one end of the output shaft of the second driving motor is fixedly sleeved with a rotating shaft, and the left side of the rotating shaft extends to the injection molding machine. The inner wall of the head is fixedly installed with a circular plate.

Preferably, the top of the left end of the circular plate is fixedly installed with a fixed shaft located on the inner wall of the bottom end of the second baffle, and the outer surface of the fixed shaft is movably connected with the inner wall of the second baffle.

Preferably, the inner side of the first support frame and the fixed mold is provided with a moving groove located in the middle of the front and back of the fixed mold and the movable mold, and the inner wall of the first support frame and the fixed mold is fixedly installed with a groove located outside the movable plate. A limit column, the outer surface of the limit column is movably socketed with a moving plate, the inner side of the moving plate is fixedly installed with blocks located on the inner wall of the fixed mold and the movable mold, and the outer side of the moving plate is fixedly installed with blocks located on the inner wall of the movable mold. The connecting spring on the outer surface of the limiting post, the other end of the connecting spring is fixedly connected to the inner walls of the fixed mold and the movable mold respectively.

Preferably, a triangular plate located above the fixed mold and the movable mold is fixedly installed on the top inside of the moving plate, and push plates located on the inner walls of the first support frame and the second support frame are movably installed on the top between the triangular plates, so A push block is fixedly installed in the middle of the inner side of the push plate, and the inner side of the push block runs through the first support frame and the second support frame respectively.

The beneficial effects of the present invention are as follows:

1. The present invention arranges the first baffle plate, the first drive motor and the drive shaft. Due to the operation of the first drive motor, the rotation of the drive shaft will drive the gear to rotate, and due to the meshing relationship between the gear and the outer surface of the support plate , and then it can drive the support plate to rotate as a whole, so that the support plate and the first baffle plate are continuously dislocated and aligned, and the closing and opening of the feeding hopper can be realized, which can not only discharge the heated gas inside the support seat well, but also It can reduce the entry of external cold air, and at the same time, when the device is idle, the feeding hopper can be sealed to avoid the entry of external dust.

2. In the present invention, by setting the second baffle plate, the second drive motor and the fixed shaft, when the molten plastic inside the injection head is injected to the left, the second drive motor can be started at this time. Due to the operation of the second drive motor, the It will make the rotating shaft rotate, and then make the circular plate rotate, so that the fixed shaft pushes the whole of the second baffle upward until the left end of the injection head is completely closed. At this time, the plastic between the fixed mold and the movable mold can be avoided. Right reflux affects injection molding quality.

3. In the present invention, by setting the clamping block, connecting spring and pushing block, the two moving plates and the clamping block will be pushed towards each other due to the elastic force of the connecting spring, so that the two clamping blocks are respectively clamped on the inner wall of the fixed mold and the movable mold Fix it, then you can push the push block and the push plate downwards in turn, and then you can push the two triangular plates, the moving plate and the clamping block to face each other, respectively release the clamping and fixing effect on the fixed mold and the movable mold, and finally you can turn the two A fixed mold and a movable mold are disassembled and replaced for subsequent injection molding of different products.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the sectional structure schematic diagram of the present invention;

Fig. 3 is the structural representation of push plate of the present invention;

Fig. 4 is the structural representation of fixed mold of the present invention;

Fig. 5 is the sectional structure schematic diagram of feeding hopper of the present invention;

Fig. 6 is a schematic structural view of place A in Fig. 2;

FIG. 7 is a schematic diagram of the structure at B in FIG. 2 .

In the figure: 1. Body; 2. Support seat; 3. Injection cylinder; 4. Hot melt pipe; 5. Feeding hopper; 6. Support plate; 7. First baffle; 8. First drive motor; 9. Drive Shaft; 10, gear; 11, injection molding head; 12, first support frame; 13, power motor; 14, bolt conveying shaft; 15, second support frame; 16, limit groove; 17, limit block; 18, Pneumatic cylinder; 19, fixed mold; 20, movable mold; 21, second baffle plate; 22, second drive motor; 23, rotating shaft; 24, circular plate; 25, fixed shaft; 26, moving groove; 27, moving plate ; 28, block; 29, limit post; 30, connecting spring; 31, triangular plate; 32, push plate; 33, push block.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in Figures 1 to 7, the embodiment of the present invention provides an injection molding machine, which includes a body 1, a support seat 2 is fixedly installed on the right side of the top middle of the body 1, and an injection cylinder 3 is fixedly installed on the top of the support seat 2. The middle part of the left end of the injection cylinder 3 is fixedly connected with the injection head 11, the top of the body 1 is fixedly installed with the first support frame 12 on the left side of the injection head 11, and the left side of the injection head 11 extends to the inner wall of the first support frame 12, The outer surface of the injection molding head 11 is fixedly installed with a hot-melt pipe 4 between the injection molding head 11 and the support seat 2, the right side of the top of the injection molding cylinder 3 is fixedly connected with a feeding hopper 5, and the bottom of the inner wall of the feeding hopper 5 is fixedly installed with a support plate 6. The inner wall of the feeding hopper 5 is movably socketed with the first baffle 7 located above the support plate 6, and the outer surface on the right side of the feeding hopper 5 is fixedly installed with the first drive motor 8 located at the upper right of the first baffle 7. One end of the output shaft of a drive motor 8 is fixedly sleeved with a drive shaft 9 , and the outer surface of the bottom end of the drive shaft 9 is fixedly sleeved with a gear 10 , and the gear 10 meshes with the outer surface of the first baffle plate 7 .

Wherein, the first drive motor 8 can be started first, and at this moment, due to the operation of the first drive motor 8, the drive shaft 9 will be rotated so as to drive the gear 10 to rotate, and then due to the contact between the gear 10 and the outer surface of the support plate 6 The meshing connection relationship between them can drive the support plate 6 to rotate as a whole, so that the support plate 6 and the first baffle plate 7 are intermittently opened and closed in position, and then not only the gas heated inside the support seat 2 can be obtained. It can be discharged well, and at the same time, it can reduce the entry of external cold air to accelerate solidification, and also avoid the entry of external dust when the device is idle.

As shown in FIG. 2 , the middle part on the right side of the injection molding cylinder 3 is fixedly connected with a power motor 13 , and one end of the output shaft of the power motor 13 is fixedly sleeved with a bolt delivery shaft 14 .

Wherein, a power motor 13 is provided. Due to the operation of the power motor 13, the bolt conveying shaft 14 will push the plastic inside the hot-melt pipe 4 to move to the left.

As shown in Figures 1 and 2, the top of the body 1 is movably installed with a second support frame 15 on the left side of the first support frame 12, and the top of the body 1 is fixedly equipped with a pneumatic cylinder 18 located on the left side of the second support frame 15. , the right end of the pneumatic cylinder 18 is fixedly connected to the bottom end of the left end of the second support frame 15, and the top of the body 1 is provided with a limiting groove 16 located at the bottom right side of the second support frame 15.

Wherein, a pneumatic cylinder 18 is provided, and the operation of the pneumatic cylinder 18 will push the whole of the second support frame 15 to move to the right.

As shown in FIG. 2 , the middle part of the bottom end of the second support frame 15 is fixedly installed with a limiting block 17 inside the limiting groove 16 , and the outer surface of the limiting block 17 is movably socketed with the inner wall of the limiting groove 16 .

Wherein, the limiting groove 16 and the limiting block 17 are provided, and due to the cooperation between the limiting groove 16 and the limiting block 17, the overall movement of the second support frame 15 can be effectively limited.

As shown in Figure 6, the middle part of the first support frame 12 and the inner side of the second support frame 15 are respectively movably installed with a fixed mold 19 and a movable mold 20, and the inner wall of the first support frame 12 is movably installed with a fixed mold 19 and an injection molding head 11. Between the second baffle 21.

Wherein, the second baffle 21 is provided, due to the design of the second baffle 21, it will play a good sealing effect on the left side of the injection molding head 11, avoiding the occurrence of plastic between the fixed mold 19 and the movable mold 20 after injection molding. backflow situation.

As shown in Figure 6, the right side of the first support frame 12 is fixedly installed with the second driving motor 22 located under the injection head 11, and one end of the output shaft of the second driving motor 22 is fixedly sleeved with a rotating shaft 23, and the left side of the rotating shaft 23 It extends to the inner wall of the injection molding head 11 and is fixedly installed with a circular plate 24 .

Wherein, a second driving motor 22 is provided. At this time, due to the operation of the second driving motor 22 , the rotating shaft 23 will be rotated so as to drive the whole circular plate 24 to rotate.

As shown in FIG. 6 , the top of the left end of the circular plate 24 is fixedly mounted with a fixed shaft 25 located at the bottom inner wall of the second baffle 21 , and the outer surface of the fixed shaft 25 is movably connected with the inner wall of the second baffle 21 .

Wherein, a fixed shaft 25 is provided. When the circular plate 24 rotates, the fixed shaft 25 will move circularly on the inner wall of the second baffle 21 so as to drive the whole of the second baffle 21 to move up and down.

As shown in Figure 4, the inner side of the first support frame 12 and the fixed mold 19 is provided with a moving groove 26 positioned at the middle part of the front and rear of the fixed mold 19 and the movable mold 20, and the inner walls of the first support frame 12 and the fixed mold 19 are all fixedly installed. There is a limit column 29 located on the outside of the movable plate 27, the outer surface of the limit column 29 is movably socketed with the movable plate 27, and the inner side of the movable plate 27 is respectively fixedly equipped with a block 28 located on the inner wall of the fixed mold 19 and the movable mold 20, The outer side of the moving plate 27 is fixedly installed with a connecting spring 30 located on the outer surface of the limit post 29 , and the other end of the connecting spring 30 is fixedly connected with the inner walls of the fixed mold 19 and the movable mold 20 respectively.

Wherein, a connecting spring 30 is provided, and because the connecting spring 30 is in a compressed state at this time, the moving plate 27 and the block 28 will be pushed to face each other, and the fixed mold 19 and the movable mold 20 are clamped and fixed respectively.

As shown in Figures 3 to 4, the top of the moving plate 27 inside is fixedly equipped with a triangular plate 31 above the fixed mold 19 and the movable mold 20, and the top between the triangular plates 31 is movably installed with a triangular plate located at the first support frame 12 and the second The push plate 32 on the inner wall of the support frame 15 has a push block 33 fixedly installed in the middle part of the inner side of the push plate 32, and the inner side of the push block 33 runs through the first support frame 12 and the second support frame 15 respectively.

Among them, a push block 33 is provided, and the operator can push the push block 33 to drive the push plate 32 downwards, so as to drive the two triangular plates 31, the moving plate 27 and the block 28 to face each other, so that the fixed mold 19 and the moving plate 28 can be released successively. The fixing function of the mold 20 can eventually disassemble the fixed mold 19 and the movable mold 20 as a whole for replacement.

Working principle and usage process:

First, the operator can introduce the plastic fluid into the inside of the support base 2 through the hopper 5, and then run through the hot melt pipe 4 for heating treatment, and then start the pneumatic cylinder 18 to push the second support frame 15, so that the movable mold 20 and The fixed mold 19 is relatively fixed, and then the power motor 13 is started, so that the bolt conveying shaft 14 rotates to drive the plastic fluid to the left for injection molding, and then injects the plastic fluid between the fixed mold 19 and the movable mold 20 through the injection head 11 for injection molding, and at the same time it can start The first drive motor 8 makes the drive shaft 9 drive the gear 10 to rotate, so that the support plate 6 and the first baffle plate 7 are continuously opened and closed in position, so that the gas can be discharged smoothly while reducing the entry of cold air.

Then, the second driving motor 22 can be started, so that the rotating shaft 23 rotates to drive the circular plate 24 to rotate, so that the fixed shaft 25 can move on the inner wall of the second baffle 21, so that the whole of the second baffle 21 can be pushed upward, and the injection molding The left side of the head 11 is closed to avoid plastic reflux. Finally, you can wait for the plastic between the fixed mold 19 and the movable mold 20 to cool and form, and then start the pneumatic cylinder 18 to drive the second support frame 15 to the left, so that the formed product is taken out.

Afterwards, when the operator needs to disassemble and replace the fixed mold 19 and the movable mold 20, the push block 33 can be pushed in turn to drive the push plate 32 downward, so that both sides of the push plate 32 push the triangular plate 31, the movable plate 27 and the The clamping blocks 28 face away from each other, so that the two clamping blocks 28 are separated from the inner walls of the fixed mold 19 and the movable mold 20 respectively, and finally the clamping and fixing effect on the fixed mold 19 and the movable mold 20 can be released successively, and then the fixed mold 19 and the movable mold 20 can be sequentially removed. The movable die 20 is disassembled for replacement.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (9)

1. An injection molding machine, comprising a body (1), characterized in that: a support seat (2) is fixedly installed on the right side of the top middle part of the body (1), and a support seat (2) is fixedly installed on the top of the support seat (2). The injection molding cylinder (3), the middle part of the left end of the injection molding cylinder (3) is fixedly connected with the injection head (11), and the top of the body (1) is fixedly installed with the first support frame (11) on the left side of the injection molding head (11). 12), the left side of the injection molding head (11) extends to the inner wall of the first support frame (12), and the outer surface of the injection molding head (11) is fixedly installed with a The hot-melt pipe (4) between them, the right side of the top of the injection cylinder (3) is fixedly connected with a feeding hopper (5), and the bottom of the inner wall of the feeding hopper (5) is fixedly installed with a support plate (6), so The inner wall of the feeding hopper (5) is movably socketed with a first baffle (7) above the support plate (6), and the outer surface on the right side of the feeding hopper (5) is fixedly installed with a first baffle (7). ) the first drive motor (8) on the upper right, one end of the output shaft of the first drive motor (8) is fixedly sleeved with a drive shaft (9), and the outer surface of the bottom end of the drive shaft (9) is fixedly sleeved with A gear (10), the gear (10) meshes with the outer surface of the first baffle (7). 2. An injection molding machine according to claim 1, characterized in that: the middle part of the right side of the injection cylinder (3) is fixedly connected with a power motor (13), and one end of the output shaft of the power motor (13) The fixed socket is provided with a bolt conveying shaft (14). 3. A kind of injection molding machine according to claim 1, characterized in that: the top of the body (1) is movably installed with a second support frame (15) on the left side of the first support frame (12), so The top of the body (1) is fixedly equipped with a pneumatic cylinder (18) on the left side of the second support frame (15), and the right end of the pneumatic cylinder (18) is fixedly connected with the bottom end of the left end of the second support frame (15). , the top of the body (1) is provided with a limit slot (16) located below the right side of the second support frame (15). 4. An injection molding machine according to claim 3, characterized in that: the middle part of the bottom end of the second support frame (15) is fixedly installed with a limit block (17) inside the limit groove (16), so that The outer surface of the limiting block (17) is movably socketed with the inner wall of the limiting groove (16). 5. An injection molding machine according to claim 1, characterized in that: fixed molds (19) and movable molds are respectively installed in the middle of the first support frame (12) and the middle part of the second support frame (15). The mold (20), the inner wall of the first support frame (12) is movably installed with a second baffle (21) between the fixed mold (19) and the injection molding head (11). 6. An injection molding machine according to claim 1, characterized in that: the right side of the first support frame (12) is fixedly installed with a second drive motor (22) located below the injection molding head (11), One end of the output shaft of the second drive motor (22) is fixedly sleeved with a rotating shaft (23), and the left side of the rotating shaft (23) extends to the inner wall of the injection molding head (11) and is fixedly mounted with a circular plate (24). 7. A kind of injection molding machine according to claim 6, characterized in that: the top of the left end of the circular plate (24) is fixedly installed with a fixed shaft (25) located on the inner wall of the bottom end of the second baffle plate (21), The outer surface of the fixed shaft (25) is movably connected with the inner wall of the second baffle (21). 8. A kind of injection molding machine according to claim 1, characterized in that: the first support frame (12) and the inner side of the fixed mold (19) are provided with a fixed mold (19) and a movable mold (20). ) the moving groove (26) in the middle part of the front and back, the inner wall of the first support frame (12) and the fixed mold (19) are all fixedly installed with a limiting column (29) positioned at the outer side of the moving plate (27), the limiting The outer surface of the position post (29) is movably socketed with a moving plate (27), and the inner side of the moving plate (27) is respectively fixed with a block (28) on the inner wall of the fixed mold (19) and the movable mold (20). , the outer side of the moving plate (27) is fixedly installed with a connecting spring (30) positioned on the outer surface of the limit post (29), and the other end of the connecting spring (30) is respectively connected to the fixed mold (19) and the movable mold ( 20) the inner wall is fixedly connected. 9. An injection molding machine according to claim 8, characterized in that: a triangular plate (31) above the fixed mold (19) and the movable mold (20) is fixedly installed on the top end of the moving plate (27) , the top between the triangular plates (31) is movably installed with a push plate (32) positioned at the inner wall of the first support frame (12) and the second support frame (15), and the middle part of the inside of the push plate (32) is fixed A push block (33) is installed, and the inner side of the push block (33) runs through the first support frame (12) and the second support frame (15) respectively.