Small injection table structure of injection molding machine

Abstract

The utility model discloses a small injection table structure of an injection molding machine, which relates to the technical field of injection molding machines and comprises a rectangular mounting frame, a hydraulic cylinder, a screw power transmission mechanism, an injection actuating mechanism and a gear box sliding seat, the left end of the rectangular mounting frame is fixedly connected with a front support, and injection table support plates are respectively mounted on the left side and the right side of the bottom of the rectangular mounting frame; the hydraulic cylinder is mounted at the right end of the rectangular mounting frame; the screw power transmission mechanism comprises a gear box body, the gear box body is located in the rectangular mounting frame, the bottom end of the right side of the gear box body is connected with a hydraulic cylinder, a transmission gear set is mounted in the gear box body, and the bottom end of the left side of the gear box body is rotationally connected with the right end of a gear mounting shaft; according to the small injection table structure of the injection molding machine, the gearbox is pushed through the hydraulic cylinders, the glue injection and storage functions are achieved, the problem that pushing of the double hydraulic cylinders is asynchronous is solved, the gearbox mechanism is adopted, torque transmission is more accurate and stable, and a guide rail for left-right movement of the screw power transmission mechanism is arranged at the bottom and is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a small-sized injection molding machine shooting platform structure. Background Art

[0002] The injection structure is a local structure of the injection molding machine. It is used to plasticize the material and inject it into the mold cavity before the injection molding machine closes the mold. The injection structure generally adopts a double-cylinder front injection structure. The double-cylinder front structure may have the phenomenon of double hydraulic cylinders being out of sync;

[0003] The prior art discloses an injection structure with a rear injection cylinder, comprising: an injection support, movably arranged on the body of the injection molding machine; a barrel, fixed at the front end of the injection support, a screw is arranged in the barrel, and one end of the screw extends out of the barrel; a pre-plastic power piece, movably arranged on the injection support, the pre-plastic power piece is connected to the end of the screw extending out of the barrel; an injection cylinder, fixed at the rear end of the injection support, the injection cylinder is connected to the pre-plastic power piece, and the pre-plastic power piece drives the screw to move horizontally. A single injection cylinder drives the pre-plastic power piece to move in the horizontal direction, thereby driving the screw to move horizontally in the barrel to achieve its injection action;

[0004] Although this patent solves the problem of possible asynchrony of the dual hydraulic cylinders in the dual-cylinder front structure, it still has the following defects: the transmission assembly uses a driving wheel, a driven wheel and a synchronous belt, the torque transmission is not precise and stable enough, and the sliding structure of the pre-plasticizing power part is located at the top and is unstable when pushed by the injection cylinder. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects, provide a small shooting platform structure for an injection molding machine, push the gear box through the hydraulic cylinder to realize the function of injection and storage, solve the problem of asynchronous pushing of the double hydraulic cylinders, and realize dissolution by driving the screw to rotate through the screw power transmission mechanism. Such a mechanical structure is suitable for a variety of injection molding machines. The gear box mechanism is adopted, and the torque transmission is more accurate and stable. The guide rail for the left and right movement of the screw power transmission mechanism is arranged at the bottom, which is more stable and can effectively solve the problems in the background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a small shooting platform structure of an injection molding machine, comprising a rectangular mounting frame, a front support is fixedly connected to the left end of the rectangular mounting frame, and shooting platform support plates are respectively installed on the left and right sides of the bottom of the rectangular mounting frame, and also includes:

[0007] A hydraulic cylinder is installed at the right end of the rectangular mounting frame;

[0008] The screw power transmission mechanism includes a gear box, a gear installation shaft, a second coupling and a transmission gear set. The gear box is located in a rectangular installation frame, and the right bottom end of the gear box is connected to the hydraulic cylinder. The transmission gear set is installed in the gear box. The left bottom end of the gear box is rotatably connected to the right end of the gear installation shaft, and the right end of the gear installation shaft is connected to the transmission gear set. The left end of the gear installation shaft is connected to the right end of the second coupling.

[0009] The injection actuator is installed on the inner side of the front support, and the injection actuator is connected to the left end of the second coupling;

[0010] There are two gear box slides, and the two gear box slides are respectively located at the front and rear sides of the bottom of the gear box body.

[0011] The front support is used to install the injection actuator. An external power source such as a power motor drives the transmission gear set to move. The transmission gear set drives coupling 2 to rotate relative to the gear box through the gear mounting shaft, thereby driving the injection actuator to work and realize the sol operation. The hydraulic cylinder extends to push the gear box to move to the left. The gear box slide cooperates with the guide rail to allow the gear box to move stably to the left. The gear box moves to the left and cooperates with the injection actuator to realize the glue injection operation.

[0012] Furthermore, the transmission gear set includes gear 1, gear 2, gear 3 and gear 4, which are connected to the gear box body from top to bottom in rotation, the bottom of gear 1 is meshed with the top of gear 2, the bottom of gear 2 is meshed with the top of gear 3, the bottom of gear 3 is meshed with the top of gear 4, and the left end of gear 4 is connected to the right end of the gear mounting shaft. The transmission of gear 1, gear 2, gear 3 and gear 4 is more stable than that of the synchronous belt, and it is also convenient to change the torque.

[0013] Furthermore, the screw power transmission mechanism also includes a coupling 1, and the right end of the gear 1 is connected to the left end of the coupling 1. The coupling 1 is connected to an external power motor to drive the gear 1 to rotate, and the gear 1 can drive the gear mounting shaft and the coupling 2 to rotate through the transmission of the gear 2, the gear 3 and the gear 4.

[0014] Furthermore, the screw power transmission mechanism further comprises a protective sleeve, the top right side of the gear housing is provided with a protective sleeve, and the coupling 1 is located in the protective sleeve. The protective sleeve can protect the coupling 1.

[0015] Furthermore, the injection actuator includes a barrel, a screw and a glue head. The inner side of the front support is fixedly connected to the right end of the barrel, a screw is installed in the barrel, the right end of the screw is connected to the left end of the second coupling, the left end of the screw is connected to the right end of the glue head, and the left end of the glue head extends to the outside of the left end of the barrel. The rotation of the second coupling can drive the screw to rotate in the barrel, and the rotation of the screw can promote the melting of the raw materials in the barrel to achieve the melting operation.

[0016] Furthermore, the injection actuator also includes a rubber ring and a rubber gasket. A rubber ring is arranged on the inner side of the left end of the barrel, and a rubber gasket is arranged on the right end of the rubber ring. The rubber head passes through the rubber gasket and the rubber ring. The rubber ring and the rubber gasket cooperate with the rubber head to enable the left end of the barrel to discharge glue in an orderly manner.

[0017] Furthermore, it also includes a feeding port. The top of the front support is provided with a feeding port, and the top of the right end of the barrel is provided with a filling port connected to the feeding port. Rubber particles are added into the feeding port, and the rubber particles can enter the barrel through the filling port.

[0018] Furthermore, it also includes a shooting platform support plate slide and a guide rail. There are two guide rails, and the guide rails are arranged horizontally. Two shooting platform support plate slides are respectively arranged on the front and rear sides of the bottom of each shooting platform support plate. The two shooting platform support plate slides at the bottom of each shooting platform support plate are respectively slidably connected to the two guide rails, and the two gear box slides are respectively slidably connected to the two guide rails. The guide rails cooperate with the shooting platform support plate slides to guide the lateral movement of the shooting platform support plate and the rectangular mounting frame. At the same time, the guide rails cooperate with the gear box slides to guide the lateral movement of the gear box body. Moreover, the guide rails and the gear box slides are located at the bottom of the gear box body, which can make the movement of the gear box body more stable and smooth.

[0019] Compared with the prior art, the beneficial effects of the small injection molding machine structure are:

[0020] 1. The gear box is driven by the hydraulic cylinder to realize the function of glue injection and storage, which solves the problem of asynchronous driving of the double hydraulic cylinders. The screw power transmission mechanism drives the screw to rotate to realize glue dissolution. Such a mechanical structure is suitable for a variety of injection molding machines;

[0021] 2. The gear box mechanism is adopted, and the torque transmission is more accurate and stable. The guide rail for the left and right movement of the screw power transmission mechanism is set at the bottom, which is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a side view of the structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0025] Figure 4 For this utility model Figure 3 A schematic diagram of the partially enlarged structure at center A;

[0026] Figure 5 For this utility model Figure 3 A schematic diagram of the partially enlarged structure at B in the middle;

[0027] In the figure: 1 rectangular mounting frame, 2 hydraulic cylinder, 21 injection cylinder body, 22 injection cylinder rear cover, 23 injection cylinder front cover, 24 injection piston rod, 25 injection piston, 3 screw power transmission mechanism, 31 gear box body, 32 protective sleeve, 33 coupling 1, 34 gear 1, 35 gear 2, 36 gear 3, 37 gear 4, 38 gear mounting shaft, 39 coupling 2, 4 injection actuator, 41 barrel, 42 screw, 43 glue head, 44 glue ring, 45 glue gasket, 5 front support, 6 feeding port, 7 shooting platform support plate, 8 shooting platform support plate slide, 9 gear box slide, 10 guide rail. DETAILED DESCRIPTION

[0028] 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.

[0029] For example, see Figures 1 to 5 The utility model provides a technical solution: a small injection molding machine shooting platform structure, including a rectangular installation frame 1, a front support 5 is fixedly connected to the left end of the rectangular installation frame 1, and shooting platform support plates 7 are respectively installed on the left and right sides of the bottom of the rectangular installation frame 1, and also includes a hydraulic cylinder 2, a screw power transmission mechanism 3, an injection actuator 4 and a gear box slide 9;

[0030] The hydraulic cylinder 2 is installed at the right end of the rectangular installation frame 1;

[0031] The screw power transmission mechanism 3 includes a gear box 31, a gear installation shaft 38, a second coupling 39 and a transmission gear set. The gear box 31 is located in the rectangular installation frame 1, and the right bottom end of the gear box 31 is connected to the hydraulic cylinder 2. A transmission gear set is installed in the gear box 31. The left bottom end of the gear box 31 is rotatably connected to the right end of the gear installation shaft 38, and the right end of the gear installation shaft 38 is connected to the transmission gear set. The left end of the gear installation shaft 38 is connected to the right end of the second coupling 39.

[0032] The hydraulic cylinder 2 includes a shot-jet oil cylinder body 21, a shot-jet oil cylinder rear cover 22, a shot-jet oil cylinder front cover 23, a shot-jet piston rod 24, and a shot-jet piston 25. The right end of the rectangular mounting frame 1 is fixedly connected to the shot-jet oil cylinder front cover 23, the right end of the shot-jet oil cylinder front cover 23 is fixedly connected to the left end of the shot-jet oil cylinder body 21, the right end of the shot-jet oil cylinder body 21 is fixedly connected to the shot-jet oil cylinder rear cover 22, and the shot-jet oil cylinder body 21 is slidably installed with a shot-jet piston 25, and the middle of the shot-jet piston 25 The right end of the injection piston rod 24 is fixedly connected, and the left end of the injection piston rod 24 passes through the middle of the injection cylinder front cover 23 and is connected to the right bottom end of the gear box body 31. Oil holes are respectively opened at both ends of the injection cylinder body 21, and the oil holes are connected to the external hydraulic pipeline. With the help of an external hydraulic source, the injection piston rod 24 and the injection piston 25 are driven to move relative to the injection cylinder body 21 to realize the telescopic function of the hydraulic cylinder 2. The telescopic control of the hydraulic cylinder 2 adopts the existing technology.

[0033] The transmission gear set includes gear 1 34, gear 2 35, gear 3 36 and gear 4 37. Gear 1 34, gear 2 35, gear 3 36 and gear 4 37 are rotatably connected in the gear housing 31 from top to bottom. The bottom of gear 1 34 is meshed with the top of gear 2 35, the bottom of gear 2 35 is meshed with the top of gear 3 36, the bottom of gear 3 36 is meshed with the top of gear 4 37, and the left end of gear 4 37 is connected to the right end of the gear mounting shaft 38. The transmission of gear 1 34, gear 2 35, gear 3 36 and gear 4 37 is more stable than that of the synchronous belt, and it is also convenient to change the torque.

[0034] The screw power transmission mechanism 3 also includes a coupling 1 33, and the right end of the gear 1 34 is connected to the left end of the coupling 1 33. The coupling 1 33 is connected to an external power motor, thereby driving the gear 1 34 to rotate, and the gear 1 34 can drive the gear installation shaft 38 and the coupling 2 39 to rotate through the transmission of the gear 2 35, the gear 3 36 and the gear 4 37.

[0035] The screw power transmission mechanism 3 further includes a protective sleeve 32, and the protective sleeve 32 is arranged on the top right side of the gear box body 31, and the coupling 1 33 is located in the protective sleeve 32. The protective sleeve 32 can protect the coupling 1 33.

[0036] The injection actuator 4 is installed on the inner side of the front support 5, and the injection actuator 4 is connected to the left end of the second coupling 39;

[0037] The injection actuator 4 includes a barrel 41, a screw 42 and a glue head 43. The inner side of the front support 5 is fixedly connected to the right end of the barrel 41. The screw 42 is installed in the barrel 41. The right end of the screw 42 is connected to the left end of the second coupling 39. The left end of the screw 42 is connected to the right end of the glue head 43. The left end of the glue head 43 extends to the outer side of the left end of the barrel 41. The rotation of the second coupling 39 can drive the screw 42 to rotate in the barrel 41. Rotating the screw 42 can promote the melting of the raw materials in the barrel 41 to achieve the melting operation.

[0038] The injection actuator 4 also includes a rubber ring 44 and a rubber gasket 45. The rubber ring 44 is arranged on the inner side of the left end of the barrel 41, and the rubber gasket 45 is arranged on the right end of the rubber ring 44. The rubber head 43 passes through the rubber gasket 45 and the rubber ring 44. The rubber ring 44 and the rubber gasket 45 cooperate with the rubber head 43 to enable the left end of the barrel 41 to discharge glue in an orderly manner.

[0039] It also includes a feeding port 6. The top of the front support 5 is provided with the feeding port 6. The top of the right end of the barrel 41 is provided with a filling port connected to the feeding port 6. Rubber particles are added into the feeding port 6, and the rubber particles can enter the barrel 41 through the filling port.

[0040] Two gear box slides 9 are provided, and the two gear box slides 9 are respectively located at the front and rear sides of the bottom of the gear box body 31 .

[0041] When in use, the front support 5 is used to install the injection actuator 4, and an external power source such as a power motor drives the transmission gear set to move. The transmission gear set drives the coupling 2 39 to rotate relative to the gear box 31 through the gear installation shaft 38, thereby driving the injection actuator 4 to work and realize the sol operation. The hydraulic cylinder 2 extends to push the gear box 31 to move to the left. The gear box slide 9 cooperates with the guide rail to allow the gear box 31 to move stably to the left. The gear box 31 moves to the left and cooperates with the injection actuator 4 to realize the glue injection operation.

[0042] For example 2, please refer to Figures 1 to 5 The utility model provides a technical solution: a small injection molding machine shooting platform structure. The structure of this embodiment is roughly the same as that of the first embodiment, except that:

[0043] It also includes a shooting platform support plate slide 8 and a guide rail 10. There are two guide rails 10, and the guide rails 10 are arranged horizontally. Two shooting platform support plate slides 8 are respectively arranged on the front and rear sides of the bottom of each shooting platform support plate 7. The two shooting platform support plate slides 8 at the bottom of each shooting platform support plate 7 are respectively slidably connected to the two guide rails 10, and the two gear box slides 9 are respectively slidably connected to the two guide rails 10. The guide rails 10 cooperate with the shooting platform support plate slides 8 to guide the lateral movement of the shooting platform support plate 7 and the rectangular mounting frame 1. At the same time, the guide rails 10 cooperate with the gear box slides 9 to guide the lateral movement of the gear box body 31. Moreover, the guide rails 10 and the gear box slides 9 are located at the bottom of the gear box body 31, which can make the movement of the gear box body 31 more stable and smooth.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A small-sized shooting platform structure for an injection molding machine, comprising a rectangular mounting frame (1), wherein a front support (5) is fixedly connected to the left end of the rectangular mounting frame (1), and shooting platform support plates (7) are respectively installed on the left and right sides of the bottom of the rectangular mounting frame (1), characterized in that: Also includes: A hydraulic cylinder (2) is mounted on the right end of the rectangular mounting frame (1); The screw power transmission mechanism (3) comprises a gear box (31), a gear mounting shaft (38), a second coupling (39) and a transmission gear set, wherein the gear box (31) is located in a rectangular mounting frame (1), and the right bottom end of the gear box (31) is connected to a hydraulic cylinder (2), a transmission gear set is installed in the gear box (31), the left bottom end of the gear box (31) is rotatably connected to the right end of the gear mounting shaft (38), the right end of the gear mounting shaft (38) is connected to the transmission gear set, and the left end of the gear mounting shaft (38) is connected to the right end of the second coupling (39); An injection actuator (4) is mounted on the inner side of the front support (5), and the injection actuator (4) is connected to the left end of the second coupling (39); Two gear box slides (9) are provided, and the two gear box slides (9) are respectively located at the front and rear sides of the bottom of the gear box body (31).

2. The small-sized injection molding machine shooting platform structure according to claim 1 is characterized in that: The transmission gear set comprises a gear 1 (34), a gear 2 (35), a gear 3 (36) and a gear 4 (37). The gear 1 (34), the gear 2 (35), the gear 3 (36) and the gear 4 (37) are rotatably connected in sequence from top to bottom in the gear housing (31). The bottom of the gear 1 (34) is meshedly connected with the top of the gear 2 (35), the bottom of the gear 2 (35) is meshedly connected with the top of the gear 3 (36), the bottom of the gear 3 (36) is meshedly connected with the top of the gear 4 (37), and the left end of the gear 4 (37) is connected to the right end of the gear mounting shaft (38).

3. The small-sized injection molding machine shooting platform structure according to claim 2 is characterized in that: The screw power transmission mechanism (3) further comprises a coupling 1 (33), and the right end of the gear 1 (34) is connected to the left end of the coupling 1 (33).

4. The small-sized injection molding machine shooting platform structure according to claim 3 is characterized in that: The screw power transmission mechanism (3) further comprises a protective sleeve (32). The top right side of the gear housing (31) is provided with the protective sleeve (32), and the coupling 1 (33) is located inside the protective sleeve (32).

5. The small-sized injection molding machine shooting platform structure according to claim 1 is characterized in that: The injection actuator (4) comprises a barrel (41), a screw (42) and a glue head (43); the inner side of the front support (5) is fixedly connected to the right end of the barrel (41); a screw (42) is installed in the barrel (41); the right end of the screw (42) is connected to the left end of the second coupling (39); the left end of the screw (42) is connected to the right end of the glue head (43); and the left end of the glue head (43) extends to the outside of the left end of the barrel (41).

6. The small-sized injection molding machine shooting platform structure according to claim 5 is characterized in that: The injection actuator (4) further comprises a rubber ring (44) and a rubber gasket (45); the rubber ring (44) is arranged on the inner side of the left end of the barrel (41); the rubber gasket (45) is arranged on the right end of the rubber ring (44); and the rubber head (43) passes through the rubber gasket (45) and the rubber ring (44).

7. The small-sized injection molding machine shooting platform structure according to claim 5 is characterized in that: It also comprises a feeding port (6), the top of the front support (5) is provided with the feeding port (6), and the top of the right end of the barrel (41) is provided with a filling port connected to the feeding port (6).

8. The small-sized injection molding machine shooting platform structure according to claim 1 is characterized in that: It also includes a shooting platform support plate slide (8) and a guide rail (10), wherein two guide rails (10) are provided and are arranged transversely, and two shooting platform support plate slides (8) are respectively provided at the front and rear sides of the bottom of each shooting platform support plate (7), and the two shooting platform support plate slides (8) at the bottom of each shooting platform support plate (7) are respectively slidably connected to the two guide rails (10), and the two gear box slides (9) are respectively slidably connected to the two guide rails (10).

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