Vacuum type dual-mode rubber oil pressure synchronous injection molding machine

Abstract

The utility model discloses a vacuum type dual-mode rubber oil pressure synchronous injection molding machine which comprises a table body, the top of the table body is fixedly connected with a first mold, one side of the first mold is fixedly connected with a guide cylinder, one side of the inner wall of the guide cylinder is rotationally connected with a threaded conveying rod, one side of the guide cylinder is fixedly connected with a connecting plate, and the connecting plate is fixedly connected with a second mold. And one side of the connecting plate is fixedly connected with a servo motor. According to the injection molding machine, an injection molding material flows through rotation of the threaded conveying rod, so that a mold is injected, after the mold is filled with the injection molding material, the electric telescopic rod stretches out and draws back to drive the conical block to move, so that the communicating groove in the surface of the limiting block is blocked, and the injection molding material is prevented from continuously flowing; and therefore, the space, close to the interior of the first mold, of the guide cylinder is vacated, redundant injection molding materials are made to flow back, the redundant injection molding materials can effectively cooperate with equipment for rapid injection molding and mold disassembly after flowing back, and the production efficiency of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a vacuum type double-mode rubber oil pressure synchronous injection molding machine. Background Art

[0002] Injection molding machine is also called injection molding machine or injection machine. It is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. However, after the existing injection molding equipment fills the mold groove with injection molding, it is difficult to make the injected plastic flow back, which easily leads to the injection plastic still flowing out of the injection port during demoulding, resulting in the waste of injected plastic. This requires the use of vacuum dual-mode rubber hydraulic synchronous injection molding machine.

[0003] Patent document CN213618136U discloses a vacuum-type dual-mode rubber oil pressure synchronous injection molding machine, "including a synchronous injection molding machine body, an injection mechanism and an ejection mechanism, the internal top end of the synchronous injection molding machine body is fixed with an injection mechanism by bolts, the internal lower end of the synchronous injection molding machine body is fixed with a lifting mechanism by bolts, and the upper end of the outer wall of the synchronous injection molding machine body is symmetrically fixed with two groups of hydraulic telescopic rods by bolts. The vacuum-type dual-mode rubber oil pressure synchronous injection molding machine avoids the problem that the existing injection dual-mode mold body is prone to loosening due to long-term vibration during actual use, thereby affecting the normal operation of the device. The vacuum-type dual-mode rubber oil pressure synchronous injection molding machine improves the ease of use of the device by setting a seat, setting a groove, limiting rod and the mutual cooperation of the second spring. "

[0004] The above-mentioned water pump avoids the phenomenon that the main body of the existing double-mold injection mold is easily loosened due to long-term vibration during actual use through the mutual cooperation of the transmission block, the slide groove, the rolling sleeve, the screw and the first spring. However, after the mold groove is filled with injection molding, it is difficult for the injected plastic to flow back, which easily leads to the injection plastic still flowing out of the injection port during demolding, thereby resulting in the waste of injection plastic, which requires the staff to improve their equipment. Utility Model Content

[0005] The utility model aims to provide a vacuum type double-mode rubber oil pressure synchronous injection molding machine to solve the problems raised in the above background technology.

[0006] In order to achieve the above object, the utility model provides the following technical solutions, including:

[0007] A table body, the top of the table body is fixedly connected to a first mold, one side of the first mold is fixedly connected to a guide cylinder, one side of the inner wall of the guide cylinder is rotatably connected to a threaded transport rod, one side of the guide cylinder is fixedly connected to a connecting plate, one side of the connecting plate is fixedly connected to a servo motor, the output end of the servo motor is fixedly connected to an electric telescopic rod, and the surface of one end of the electric telescopic rod is rotatably connected to the inner wall of the connecting plate, a feeding hole is provided in the middle of the inner wall of the first mold, and the other end of the electric telescopic rod is fixedly connected to one end of the threaded transport rod, and the other end of the threaded transport rod is fixedly connected to a conical block, one side of the inner wall of the guide cylinder is fixedly connected to a limiting block, the surface of the limiting block is provided with a connecting groove, and the surface of one end of the threaded transport rod is slidably connected to the inner wall of the limiting block, and the inner side wall of the guide cylinder is fixedly connected to a heater body.

[0008] As an optional technical solution, hydraulic cylinders are fixedly connected to both sides of the first mold, one end of the hydraulic cylinder is fixedly connected to the second mold, the inner walls of the first mold and the second mold are provided with water delivery grooves, one side of the top of the first mold and the second mold is fixedly connected to a connecting pipe, and the other side of the top of the first mold and the second mold is fixedly connected to a water pump.

[0009] As an optional technical solution, a mold groove is opened on one side of the second mold, and a conveying groove is opened in the middle of one side of the second mold.

[0010] As an optional technical solution, a funnel is fixedly connected to one side of the top of the guide cylinder, and a protective box is fixedly connected to one side of the connecting plate.

[0011] As an optional technical solution, a clamping block is fixedly connected to the surface of the limit block, a clamping groove is formed on the inner side wall of the guide cylinder, and the surface of the clamping block overlaps the inner wall of the clamping groove.

[0012] As an optional technical solution, a connection frame is fixedly connected to the middle of both sides of the first mold, a support rod is fixedly connected to one side of the connection frame, and a push plate is fixedly connected to one end of the support rod.

[0013] As an optional technical solution, one side of the middle portion of the threaded transport rod is fixedly connected to a limiting plate, and one side of the limiting block is overlapped with one side of the limiting plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model drives the threaded transport rod to rotate by a servo motor, thereby driving the injection plastic in the guide cylinder to flow, thereby injecting the mold. After the mold is filled, the extension and retraction of the electric telescopic rod drives the conical block to move, thereby blocking the connecting groove on the surface of the limit block to prevent the injection plastic from continuing to flow. When the conical block moves toward the limit block, the space in the guide cylinder close to the first mold is vacated. Since there is a slight curvature in the feed hole, the excess injection plastic is allowed to flow back, and the injection plastic is prevented from flowing out through the feed hole, thereby avoiding the waste of injection plastic. After the excess injection plastic flows back, it can effectively cooperate with the equipment for rapid injection molding and model disassembly, thereby improving the production efficiency of the equipment.

[0016] 2. The utility model uses a water pump to pump water into a water delivery trough through a connecting pipe, thereby cooling down the two sets of molds. After the temperature of the mold drops, the injection molding material in the mold is cooled down, so that the injection molding material can be quickly cooled and solidified to meet the demoulding requirements, thereby effectively improving the production efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A front view of a device provided in a first embodiment of the utility model;

[0018] Figure 2 A three-dimensional diagram of a connection frame;

[0019] Figure 3 is a structural cross-sectional view of the second mold;

[0020] Figure 4 is a structural cross-sectional view of the first mold;

[0021] Figure 5 The internal structure diagram of the guide cylinder;

[0022] Figure 6 This is the driving structure diagram of the threaded transport rod.

[0023] In the figure: 1. table body; 2. first mold; 3. guide cylinder; 4. threaded transport rod; 5. connecting plate; 6. servo motor; 7. electric telescopic rod; 8. feed hole; 9. second mold; 10. water delivery trough; 11. connecting pipe; 12. water pump; 13. funnel; 14. protective box; 15. conical block; 16. limit block; 17. connecting groove; 18. clamping block; 19. clamping groove; 20. heater body; 21. hydraulic cylinder; 22. mold groove; 23. conveying trough; 24. connecting frame; 25. support rod; 26. push plate; 27. limit plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1 , Figure 4 , Figure 5 and Figure 6 , a vacuum type double-mode rubber hydraulic synchronous injection molding machine: a table body 1, a first mold 2 is fixedly connected to the top of the table body 1, a guide cylinder 3 is fixedly connected to one side of the first mold 2, a threaded transport rod 4 is rotatably connected to one side of the inner wall of the guide cylinder 3, a connecting plate 5 is fixedly connected to one side of the guide cylinder 3, a servo motor 6 is fixedly connected to one side of the connecting plate 5, an electric telescopic rod 7 is fixedly connected to the output end of the servo motor 6, and one end surface of the electric telescopic rod 7 is rotatably connected to the inner wall of the connecting plate 5, a feeding hole 8 is opened in the middle of the inner wall of the first mold 2, and the other end of the electric telescopic rod 7 is fixedly connected to one end of the threaded transport rod 4, and the other end of the threaded transport rod 4 is fixedly connected to a conical block 15, a limited block 16 is fixedly connected to one side of the inner wall of the guide cylinder 3, a connecting groove 17 is opened on the surface of the limited block 16, and the surface of one end of the threaded transport rod 4 is slidably connected to the inner wall of the limited block 16, and a heater body 20 is fixedly connected to the inner side wall of the guide cylinder 3.

[0028] The heater body 20 inside the guide cylinder 3 heats the guide cylinder 3 to melt the injection plastic in the guide cylinder 3, and then the servo motor 6 is powered on, and the output end of the servo motor 6 drives the electric telescopic rod 7 to rotate, and the rotation of the electric telescopic rod 7 drives the threaded transport rod 4 to rotate, and the threaded transport rod 4 drives the injection plastic in the guide cylinder 3 to flow through the connecting groove 17. The injection plastic enters the feed hole 8, and finally one side of the first mold 2 is injection molded. After the mold groove 22 is filled, the electric telescopic rod 7 is contracted to drive the threaded transport rod 4 to rotate. The transport rod 4 moves, and the threaded transport rod 4 moves, thereby driving the conical block 15 at one end to move. After the conical block 15 moves to the side of the limit block 16, the connecting groove 17 on the surface of the limit block 16 is blocked, making it difficult for the injection plastic to flow out of the connecting groove 17. After the conical block 15 moves, a cavity is generated between the conical block 15 and the feed hole 8, so that the injection plastic flows back into the guide cylinder 3 through the feed hole 8. After the model is demolded, the threaded transport rod 4 and the conical block 15 are reset by the electric telescopic rod 7, so that the guide cylinder 3 resumes circulation for subsequent injection molding.

[0029] See also Figure 1 , Figure 3 and Figure 4 A vacuum type double-mode rubber hydraulic synchronous injection molding machine: hydraulic cylinders 21 are fixedly connected to both sides of the first mold 2, one end of the hydraulic cylinder 21 is fixedly connected to the second mold 9, the inner walls of the first mold 2 and the second mold 9 are both provided with water delivery grooves 10, one side of the top of the first mold 2 and the second mold 9 is fixedly connected to a connecting pipe 11, the other side of the top of the first mold 2 and the second mold 9 is fixedly connected to a water pump 12, a mold groove 22 is provided on one side of the second mold 9, and a conveying groove 23 is provided in the middle of one side of the second mold 9.

[0030] When the mold groove 22 is injection molded, the injection plastic enters the mold groove 22 through the conveying groove 23 to fill the mold groove 22. Since air grooves are provided around the mold groove 22, excess air can enter the air grooves to avoid bubbles in the model after injection molding. After the injection plastic is injected into the mold groove 22, the connecting pipe 11 is connected to the water source, and the water pump 12 draws the water source into the water delivery groove 10 through the connecting pipe 11, so that the water source cools down the first mold 2 and the second mold 9. After the first mold 2 and the second mold 9 are cooled, the injection plastic in the mold groove 22 is cooled to make it solidify quickly, and then the water source in the water delivery groove 10 is pumped away by the water pump 12. This is repeated to repeatedly cool down the first mold 2 and the second mold 9.

[0031] See also Figure 1 , a vacuum type double-mode rubber hydraulic synchronous injection molding machine: a funnel 13 is fixedly connected to one side of the top of the guide cylinder 3, and a protective box 14 is fixedly connected to one side of the connecting plate 5.

[0032] The solid injection plastic is poured into the funnel 13 and falls into the guide cylinder 3 through the opening at the bottom of the funnel 13 , thereby transporting the solid injection plastic. The protection box 14 can protect the servo motor 6 .

[0033] See also Figure 4 , Figure 5 and Figure 6 A vacuum type double-mode rubber hydraulic synchronous injection molding machine: a clamping block 18 is fixedly connected to the surface of the limit block 16, a clamping groove 19 is opened on the inner side wall of the guide cylinder 3, and the surface of the clamping block 18 overlaps the inner wall of the clamping groove 19.

[0034] The limit block 16 is fixed in the slot 19 through the clamping blocks 18 on both sides, thereby limiting the movement of the limit block 16 .

[0035] See also Figure 1 , Figure 2 and Figure 3 A vacuum type double-mode rubber hydraulic synchronous injection molding machine: a connecting frame 24 is fixedly connected to the middle of both sides of the first mold 2, a support rod 25 is fixedly connected to one side of the connecting frame 24, a push plate 26 is fixedly connected to one end of the support rod 25, a limiting plate 27 is fixedly connected to one side of the middle of the threaded transport rod 4, and one side of the limiting block 16 is overlapped on one side of the limiting plate 27.

[0036] After the model solidifies, the second mold 9 is moved by the extension and retraction of the hydraulic cylinder 21, thereby separating the first mold 2 and the second mold 9. During the movement of the second mold 9, the second mold 9 slides on the surface of the support rod 25, so that the push plate 26 at one end of the support rod 25 pushes the model in the mold groove 22 for demolding. After the model is pushed out of the mold groove 22, it falls by its own gravity, and then the first mold 2 and the second mold 9 are merged by the extension and retraction of the hydraulic cylinder 21, so as to carry out subsequent model injection.

[0037] Working principle: when using the equipment for model injection molding, first pour the solid injection plastic into the funnel 13, so that the injection plastic falls into the guide cylinder 3 through the opening at the bottom of the funnel 13, and then the guide cylinder 3 is heated by the heater body 20 inside the guide cylinder 3. The rotation of the threaded transport rod 4 drives the injection plastic in the guide cylinder 3 to flow, so that the injection plastic enters the feed hole 8, thereby injecting the mold groove 22. After the mold groove 22 is filled, the water pump 12 draws water into the water delivery trough 10 through the connecting pipe 11, so that the first mold 2 and the second mold 9 are cooled, and then the threaded transport rod 4 is driven by the electric telescopic rod 7 to move, so that a cavity is generated between the conical block 15 and the feed hole 8, so that the injection plastic flows back to the guide cylinder 3 through the feed hole 8, and the second mold 9 is moved by the telescopic movement of the hydraulic cylinder 21, so that the push plate 26 at one end of the support rod 25 pushes out the model in the mold groove 22, thereby demolding.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A vacuum type dual-mode rubber hydraulic synchronous injection molding machine, comprising a table body (1), characterized in that: The top of the table body (1) is fixedly connected to a first mold (2), one side of the first mold (2) is fixedly connected to a guide cylinder (3), one side of the inner wall of the guide cylinder (3) is rotatably connected to a threaded transport rod (4), one side of the guide cylinder (3) is fixedly connected to a connecting plate (5), one side of the connecting plate (5) is fixedly connected to a servo motor (6), an output end of the servo motor (6) is fixedly connected to an electric telescopic rod (7), and one end surface of the electric telescopic rod (7) is rotatably connected to the inner wall of the connecting plate (5), and the first mold A feeding hole (8) is provided in the middle of the inner wall of the tool (2), and the other end of the electric telescopic rod (7) is fixedly connected to one end of the threaded transport rod (4), and the other end of the threaded transport rod (4) is fixedly connected to a conical block (15). One side of the inner wall of the guide cylinder (3) is fixedly connected to a limit block (16), and a connecting groove (17) is provided on the surface of the limit block (16). The surface of one end of the threaded transport rod (4) is slidably connected to the inner wall of the limit block (16), and the inner side wall of the guide cylinder (3) is fixedly connected to a heater body (20).

2. A vacuum type dual-mode rubber hydraulic synchronous injection molding machine according to claim 1, characterized in that: Hydraulic cylinders (21) are fixedly connected to both sides of the first mold (2), one end of the hydraulic cylinder (21) is fixedly connected to the second mold (9), inner walls of the first mold (2) and the second mold (9) are provided with water delivery grooves (10), one side of the top of the first mold (2) and the second mold (9) is fixedly connected to a connecting pipe (11), and the other side of the top of the first mold (2) and the second mold (9) is fixedly connected to a water pump (12).

3. A vacuum type dual-mode rubber hydraulic synchronous injection molding machine according to claim 2, characterized in that: A mold groove (22) is provided on one side of the second mold (9), and a conveying groove (23) is provided in the middle of one side of the second mold (9).

4. A vacuum type dual-mode rubber hydraulic synchronous injection molding machine according to claim 1, characterized in that: A funnel (13) is fixedly connected to one side of the top of the guide cylinder (3), and a protection box (14) is fixedly connected to one side of the connecting plate (5).

5. The vacuum type dual-mode rubber hydraulic synchronous injection molding machine according to claim 1, characterized in that: A clamping block (18) is fixedly connected to the surface of the limit block (16), a clamping groove (19) is provided on the inner side wall of the guide cylinder (3), and the surface of the clamping block (18) overlaps the inner wall of the clamping groove (19).

6. The vacuum type dual-mode rubber hydraulic synchronous injection molding machine according to claim 1, characterized in that: A connecting frame (24) is fixedly connected to the middle of both sides of the first mold (2), a support rod (25) is fixedly connected to one side of the connecting frame (24), and a push plate (26) is fixedly connected to one end of the support rod (25).

7. The vacuum type dual-mode rubber hydraulic synchronous injection molding machine according to claim 1, characterized in that: One side of the middle portion of the threaded transport rod (4) is fixedly connected to a limiting plate (27), and one side of the limiting block (16) is overlapped with one side of the limiting plate (27).

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