Drying mechanism of injection molding machine

Abstract

The utility model provides an injection molding machine drying mechanism which comprises a shell, a drying bin is nested in the shell, a first servo motor is fixedly installed on the outer side wall of the shell, a synchronizing mechanism driven by the first servo motor to rotate is installed on the inner side wall of the shell, and a plurality of first connecting rods are inserted in the drying bin in a penetrating mode. The synchronous mechanism is connected with first connecting rods inserted in the drying bin in a penetrating mode, rod bodies of the multiple first connecting rods are fixedly connected with multiple bent fan blades, a first servo motor is started, the first servo motor drives the synchronous mechanism to drive the multiple first connecting rods to rotate, and the multiple first connecting rods drive the multiple bent fan blades to rotate; under the stirring and driving of the bent fan blades, the lower-layer raw materials and the upper-layer raw materials continuously change positions, so that raw material caking caused by long-time drying of the raw materials at a certain position can be prevented on the premise that the raw materials are fully dried.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding equipment, in particular to a drying mechanism of an injection molding machine. Background Art

[0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastic plastics or thermosetting plastics. It is divided into vertical, horizontal, and all-electric types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it ejected and fill the mold cavity. When the injection molding machine performs hot-melt processing on the material, a drying equipment is required to dry the material in advance. The existing drying equipment uses a blower to transport hot air to the air duct, and then outputs the hot air through the air duct. The air outlet of the air duct is directly facing the raw materials at the bottom layer in the drying cylinder, and the bottom layer of the raw materials in the drying cylinder is continuously dried. When the bottom layer of raw materials is piled too thick, the air flow is inconvenient to penetrate and the effect is poor, which easily leads to uneven drying. At the same time, long-term drying of the bottom layer of raw materials may cause the raw materials to agglomerate, affecting the normal use of the raw materials.

[0003] Therefore, it is necessary to provide a new injection molding machine drying mechanism to solve the above-mentioned technical problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a drying mechanism for an injection molding machine.

[0005] The drying mechanism of the injection molding machine provided by the utility model comprises: a drying cylinder, the drying cylinder comprises an outer shell, a drying bin is nested in the outer shell, a first servo motor is fixedly mounted on the outer wall of the outer shell, a synchronous mechanism driven to rotate by the first servo motor is mounted on the inner wall of the outer shell, a plurality of first connecting rods are inserted in the drying bin, the synchronous mechanism is connected to the first connecting rods inserted in the drying bin, and a plurality of curved fan blades are fixedly connected to the rod bodies of the plurality of first connecting rods.

[0006] Preferably, a cover plate is movably installed at the top of the drying bin, a second servo motor is installed on the upper surface of the cover plate, the output end of the second servo motor is fixedly connected to the first sprocket, the first sprocket drives the second sprocket to rotate through a chain, the first sprocket and the second sprocket are respectively fixedly connected to a plurality of second connecting rods, and the plurality of second connecting rod shafts are fixedly connected to a plurality of fixing rods.

[0007] Preferably, a funnel is fixedly installed at the bottom of the drying bin, an air duct is inserted into the side of the funnel, a plurality of air outlet ducts are inserted into the air duct at one end of the funnel, a third servo motor is fixedly installed at the top of the other end of the air duct, and a blower is fixedly installed at the top of the third servo motor.

[0008] Preferably, the synchronization mechanism includes a first synchronization wheel, which is fixedly connected to the output end of the first servo motor, and a second synchronization wheel is fixedly connected to the inner wall of the shell above the first synchronization wheel. When the first synchronization wheel rotates, the second synchronization wheel is driven to rotate through the synchronization wheel.

[0009] Preferably, the main body of the injection molding machine is installed on the lower end surface of the drying cylinder.

[0010] Preferably, one end of the air guide tube penetrates into the inner cavity of the funnel and extends toward the top of the funnel, and a plurality of air outlet pipes are provided at the end of the air guide tube.

[0011] Preferably, a cylinder is fixedly mounted on the upper end surface of the cover plate, a feed pipe is inserted through the side wall of the cylinder, and an air outlet is opened on the cylinder.

[0012] Compared with the related art, the drying mechanism of the injection molding machine provided by the utility model has the following beneficial effects: a drying bin is nested in the outer shell, a first servo motor is fixedly installed on the outer wall of the outer shell, a synchronization mechanism driven to rotate by the first servo motor is installed on the inner wall of the outer shell and the outer wall of the drying bin, the synchronization mechanism is connected to a plurality of first connecting rods inserted in the drying bin, a plurality of first connecting rods are fixedly connected to a plurality of curved fan blades, the first servo motor is started, the first servo motor drives the synchronization mechanism to drive the plurality of first connecting rods to rotate, the plurality of first connecting rods drive the plurality of curved fan blades to rotate, under the stirring and driving of the curved fan blades, the lower layer of raw materials and the upper layer of raw materials are continuously exchanged, so that the raw materials can be fully dried and the agglomeration of the raw materials caused by long-term drying of the raw materials in a certain place can be prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an overall schematic diagram of the drying mechanism of the injection molding machine provided by the utility model;

[0014] Figure 2 A cross-sectional diagram of the drying mechanism of the injection molding machine provided by the utility model Figure 1 ;

[0015] Figure 3 A schematic diagram of the internal structure of the drying mechanism of the injection molding machine provided by the utility model;

[0016] Figure 4 A cross-sectional diagram of the drying mechanism of the injection molding machine provided by the utility model Figure 2 ;

[0017] Figure 5 This is a cross-sectional top view of the drying mechanism of the injection molding machine provided by the utility model.

[0018] Numbers in the figure: 1. Injection molding machine body; 2. Drying cylinder; 3. First servo motor; 4. First synchronous wheel; 5. Second synchronous wheel; 6. First connecting rod; 7. Bending fan; 8. Second servo motor; 9. First sprocket; 10. Chain; 11. Fixed rod; 12. Second connecting rod; 13. Blower; 14. Air duct; 15. Through hole; 16. Feed pipe; 17. Air outlet pipe; 18. Third servo motor; 19. Funnel; 20. Cylinder; 21. Synchronous belt; 22. Drying chamber; 23. Casing; 24. Cover plate; 25. Second sprocket; 26. Air outlet. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0020] Please refer to Figure 1-5 ,in, Figure 1 This is an overall schematic diagram of the drying mechanism of the injection molding machine provided by the utility model; Figure 2 A cross-sectional diagram of the drying mechanism of the injection molding machine provided by the utility model Figure 1 ; Figure 3 A schematic diagram of the internal structure of the drying mechanism of the injection molding machine provided by the utility model; Figure 4 A cross-sectional diagram of the drying mechanism of the injection molding machine provided by the utility model Figure 2 ; Figure 5 This is a cross-sectional top view of the drying mechanism of the injection molding machine provided by the utility model.

[0021] In the specific implementation process, Figure 2 As shown, the drying drum 2 includes a shell 23, a drying chamber 22 is nested in the shell 23, a frame is installed on the outer wall of the shell 23, a first servo motor 3 is placed in the frame, a synchronous mechanism driven by the first servo motor 3 to rotate is installed on the inner wall of the shell 23, the synchronous mechanism is connected to two first connecting rods 6 inserted in the drying chamber 22, and the two first connecting rods 6 are fixedly connected to four curved fan blades 7;

[0022] It should be noted that when the first servo motor 3 is started, the first servo motor 3 drives the two first connecting rods 6 to rotate through the synchronization mechanism. Since the longitudinal section of the curved fan 7 is "C"-shaped, the raw materials can be driven to rotate when the first connecting rod 6 rotates, so that the raw materials can be transferred from the bottom layer to the middle layer, and the raw materials in the middle layer can be transported to the bottom layer for drying.

[0023] like Figure 3As shown, a cover plate 24 is movably installed at the top of the drying bin 22, a second servo motor 8 is installed on the upper end surface of the cover plate 24, a first sprocket 9 is fixedly connected to the output end of the second servo motor 8, the first sprocket 9 drives the second sprocket 25 to rotate through a chain 10, two second connecting rods 12 are respectively welded to the first sprocket 9 and the second sprocket 25, and four fixing rods 11 are fixedly connected to the rod bodies of the two second connecting rods 12;

[0024] It should be noted that, since the fixed rod 11 and the first connecting rod 6 are cross-mounted, and the curved fan piece 7 is completely between two adjacent layers of fixed rods 11, when the fixed rod 11 and the first connecting rod 6 work simultaneously, the fixed rod 11 and the curved fan piece 7 will not affect each other's rotation.

[0025] like Figure 4 As shown, a funnel 19 is fixedly installed at the bottom end of the drying bin 22, an air duct 14 is inserted into the side of the funnel 19, and four air outlet pipes 17 are inserted into the air duct 14 at one end of the funnel 19. A plurality of through holes 15 are provided on the four air outlet pipes 17 for hot air to pass through, thereby drying the raw materials, and a third servo motor 18 is fixedly installed at the top end of the other end of the air duct 14, and a blower 13 is installed at the top end of the third servo motor 18, and the third servo motor 18 drives the blower 13 to work.

[0026] The synchronization mechanism includes a first synchronization wheel 4, which is connected to the output end of the first servo motor 3. A second synchronization wheel 5 is provided above the first synchronization wheel 4 and connected to the inner wall of the housing 23 through a connecting rod. When the first synchronization wheel 4 rotates, the second synchronization wheel 5 rotates driven by the synchronization wheel.

[0027] The lower end surface of the funnel 19 is movably mounted with an injection molding machine body 1, and the injection molding machine body 1 is mainly used for injection molding.

[0028] One end of the air guide tube 14 penetrates into the inner cavity of the funnel 19 and extends to the top of the funnel 19. A plurality of air outlet pipes 17 are provided at the end of the air guide tube 14.

[0029] It should be noted that the air duct 14 extends downward from the bottom end of the blower 13 , then turns to the direction of the funnel 19 , and is inserted into the funnel 19 . The end of the air duct 14 extends upward and is provided with a plurality of air outlet ducts 17 .

[0030] A cylinder 20 is fixedly mounted on the upper end surface of the cover plate 24 , a material delivery pipe 16 is inserted through the side wall of the cylinder 20 , and an air outlet 26 is provided on the cylinder 20 . When the hot air dries the raw materials, the hot air is discharged from the air outlet 26 .

[0031] The working principle of the utility model is as follows: when it is necessary to dry the raw materials, firstly, the raw materials are input into the drying drum 2 through the feeding pipe 16. When the raw materials are input, the first servo motor 3, the second servo motor 8 and the third servo motor 18 are started. The third servo motor 18 drives the blower 13 to work. The blower 13 transmits the hot air into the drying drum 2 through the air guide pipe 14, and then the hot air is output from the multiple through holes 15 on the air outlet pipe 17 to dry the raw materials. At the same time, the first servo motor 3 drives the first synchronous wheel 4 to rotate, thereby driving the second synchronous wheel 5 to rotate through the synchronous belt 21. The first synchronous wheel 4 and the second synchronous wheel 5 drive the first connecting rod 6 to rotate. Since there is a first connecting rod 6 A plurality of "C"-shaped curved fan blades 7 are provided, and the curved fan blades 7 stir the raw materials up and down, so that the upper raw materials can also be fully dried; the second servo motor 8 drives the first sprocket 9 to rotate, and the first sprocket 9 drives the second sprocket 25 to rotate through the chain 10, and the first sprocket 9 and the second sprocket 25 simultaneously drive the second connecting rod 12 to rotate, and a plurality of fixed rods 11 are welded on the second connecting rod 12, and the plurality of fixed rods 11 rotate with the second connecting rod 12, and the plurality of fixed rods 11 stir the raw materials in the horizontal direction, so that under the stirring of the curved fan blades 7 and the fixed rods 11, the raw materials are stirred more fully, and the upper raw materials can also be fully dried, and the agglomeration of the raw materials caused by the long-term heating of the bottom raw materials is avoided.

[0032] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A drying mechanism for an injection molding machine, characterized in that: The drying cylinder (2) comprises a drying cylinder (2), the drying cylinder (2) comprises an outer shell (23), a drying chamber (22) is nested in the outer shell (23), a first servo motor (3) is fixedly mounted on the outer wall of the outer shell (23), a synchronization mechanism driven to rotate by the first servo motor (3) is mounted on the inner wall of the outer shell (23), a plurality of first connecting rods (6) are inserted into the drying chamber (22), the synchronization mechanism is connected to the first connecting rods (6) inserted into the drying chamber (22), and a plurality of curved fan blades (7) are fixedly connected to the rod bodies of the plurality of first connecting rods (6).

2. The drying mechanism of the injection molding machine according to claim 1, characterized in that: A cover plate (24) is movably mounted on the top of the drying bin (22); a second servo motor (8) is mounted on the upper end surface of the cover plate (24); an output end of the second servo motor (8) is fixedly connected to a first sprocket (9); the first sprocket (9) drives the second sprocket (25) to rotate via a chain (10); the first sprocket (9) and the second sprocket (25) are respectively fixedly connected to a plurality of second connecting rods (12); and the plurality of second connecting rods (12) are each fixedly connected to a plurality of fixing rods (11).

3. The drying mechanism of the injection molding machine according to claim 2, characterized in that: A funnel (19) is fixedly mounted at the bottom end of the drying chamber (22), an air guide pipe (14) is inserted through the side of the funnel (19), a plurality of air outlet pipes (17) are inserted through one end of the air guide pipe (14) at the funnel (19), a third servo motor (18) is fixedly mounted at the top end of the other end of the air guide pipe (14), and a blower (13) is fixedly mounted at the top end of the third servo motor (18).

4. The drying mechanism of the injection molding machine according to claim 3, characterized in that: The synchronization mechanism comprises a first synchronization wheel (4), the first synchronization wheel (4) being fixedly connected to the output end of the first servo motor (3), a second synchronization wheel (5) being fixedly connected to the inner wall of the housing (23) above the first synchronization wheel (4), and the second synchronization wheel (5) being driven to rotate by the synchronization wheel when the first synchronization wheel (4) rotates.

5. The drying mechanism of the injection molding machine according to claim 4, characterized in that: The lower end surface of the drying cylinder (2) is mounted with an injection molding machine body (1).

6. The drying mechanism of the injection molding machine according to claim 5, characterized in that: One end of the air guide tube (14) penetrates into the inner cavity of the funnel (19) and extends toward the top of the funnel (19), and a plurality of air outlet pipes (17) are provided at the end of the air guide tube (14).

7. The drying mechanism of the injection molding machine according to claim 6, characterized in that: A cylinder (20) is fixedly mounted on the upper end surface of the cover plate (24), a material delivery pipe (16) is inserted through the side wall of the cylinder (20), and an air outlet (26) is opened on the cylinder (20).

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