Double-station automatic rubber injection molding machine capable of alternately switching molds

Abstract

The utility model discloses a double-station automatic rubber injection molding machine capable of alternately switching moulds, which comprises a molding machine main body and a guide sliding frame, the molding machine main body is provided with a double-layer mould supporting frame device, and the double-layer mould supporting frame device is provided with a first lower mould station and a second lower mould station. The guide sliding frame and the double-layer mold supporting frame device are each provided with a set of lower molds, and the guide sliding frame moves the lower molds on the guide sliding frame to be alternately switched with the lower molds on the first lower mold station or the second lower mold station. According to the double-station automatic rubber injection molding machine capable of alternately switching the molds, provided by the utility model, the pre-molding lower mold on which the insert is placed is conveyed into the molding machine main body, and then the molded lower mold product is moved out of the molding machine main body for manually taking a finished product and placing the pre-molding insert, so that the operation process is optimized, equipment does not need to wait, and the production efficiency is improved. And the production efficiency of the equipment is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of rubber injection molding, specifically a dual-station automatic rubber injection molding machine with alternating mold switching. Background Technology

[0002] Rubber molding machines are currently the most widely used equipment for molding rubber materials. They work by storing the mixed strip of rubber in a barrel, manually placing inserts into the molding die cavity, and then injecting the rubber into the die cavity after the die is closed. The rubber is then vulcanized and molded under heat and pressure. However, current rubber molding machines on the market only have a single station for placing inserts and removing finished products. During the manual removal of finished products and placement of inserts, the equipment is in a downtime and cannot produce, which reduces productivity.

[0003] Therefore, the aforementioned technical problems need to be solved. Summary of the Invention

[0004] This utility model addresses the above-mentioned technical problems by providing an automatic rubber injection molding machine with alternating mold switching and dual stations. The pre-formed lower mold with inserts placed is transported to the main body of the molding machine, and then the molded lower mold product is moved out of the main body of the molding machine for manual removal of finished products and placement of pre-formed inserts. This optimizes the operation process, eliminates waiting time for the equipment, and improves the production efficiency of the equipment.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] An automatic rubber injection molding machine with alternating mold switching and dual stations includes a molding machine body and a guide slide frame. The molding machine body is provided with a double-layer mold support frame device, which has a first lower mold station and a second lower mold station. A set of lower molds is provided on the guide slide frame and the double-layer mold support frame device respectively. The lower molds on the guide slide frame move and alternately switch with the lower molds on the first lower mold station or the second lower mold station.

[0007] In this alternating mold switching dual-station automatic rubber injection molding machine, the lower mold on the guide slide frame has inserts pre-placed outside the main body of the molding machine. After the product is molded inside the main body of the molding machine, the guide slide frame transports the lower mold with the inserts placed to an empty station between the first lower mold station and the second lower mold station, and removes the lower mold with the product molded at the first or second lower mold station. The product is then taken out outside the main body of the molding machine. The operation process is optimized, the equipment has no waiting time, and the production efficiency of the equipment is improved.

[0008] A further optimized design includes a lower mold fixed to a lower mold mounting frame. One end of the lower mold mounting frame has at least one T-shaped slot. The guide sliding frame is equipped with a reciprocating conveying mechanism, which includes a T-shaped locking block that engages with the T-shaped slot. When the T-shaped slot and T-shaped locking block are vertically aligned, moving the lower mold mounting frame up and down until the T-shaped slot and T-shaped locking block are at the same horizontal position allows them to connect. Disconnecting them allows them to separate. When the T-shaped slot and T-shaped locking block are connected, the reciprocating conveying mechanism can move the lower mold back and forth via the lower mold mounting frame. Disconnection allows for the alternating switching of the two lower molds. In short, moving the lower mold mounting frame up and down connects or disconnects the T-shaped slot and T-shaped locking block; the structure is simple and the operation is reliable.

[0009] In a further optimized design, the double-layer mold support frame device is equipped with a mold frame vertical movement mechanism. This mechanism allows for the vertical movement of the two lower mold mounting frames on the double-layer mold support frame device, facilitating the connection or disengagement of the T-shaped slots of the lower mold mounting frames with the T-shaped blocks of the reciprocating conveying mechanism, thus enabling the conveying of one lower mold and the alternating switching of the two lower molds.

[0010] In a further optimized design, the mold frame vertical movement mechanism includes vertical movement cylinders and a synchronization mechanism. The moving end of the vertical movement cylinders is connected to the double-layer mold support frame device. The synchronization mechanism includes four rack support columns with rack structures supporting the double-layer mold support frame device and four synchronization gears. The synchronization gears mesh with the racks of the rack support columns, and the four synchronization gears are respectively mounted on two transverse connecting rods. The vertical movement cylinders drive the double-layer mold support frame device to move up and down, and the synchronization mechanism ensures that the four rack support columns move up and down synchronously, achieving synchronized action.

[0011] A further optimized design includes a reciprocating conveying mechanism comprising a servo motor, a moving plate, a left rack, a right rack, a rotating shaft, a left gear, and a right gear. The servo motor is fixed to the bottom of the moving plate. The left and right racks are located on opposite sides of the moving plate. A left gear and a right gear are respectively positioned at both ends of the rotating shaft. The left gear meshes with the left rack, and the right gear meshes with the right rack. The servo motor drives the rotating shaft to rotate. The moving plate is equipped with a T-shaped locking block. The rotation of the servo motor drives the left and right gears to move back and forth on the left and right racks via the rotating shaft, thus achieving the forward and backward movement of the moving plate.

[0012] To further optimize the design, the bottom of the guide sliding frame is equipped with a mold insulation device that moves vertically and fits against the lower mold. This mold insulation device is used to raise the temperature of the lower mold to meet the mold temperature requirements for equipment production.

[0013] In a further optimized design, the bottom of the double-layer mold support frame device is equipped with a lower heating plate assembly that fits into the lower mold. The lower heating plate assembly is used for heat preservation of the lower mold to ensure that the mold temperature requirements for production are met.

[0014] Further optimizing the design, the molding machine body also includes an injection unit, a control unit, a mechanical mold-lifting device, and an upper heating plate assembly. The upper mold is fixed on the upper heating plate assembly, and the middle mold is fixed on the mechanical mold-lifting device. The upper heating plate assembly is used to keep the upper mold warm, ensuring that the mold temperature requirements for production are met; the control unit is used to control the operation of the equipment, realizing automated operation.

[0015] This utility model has the following technical advantages compared with the prior art:

[0016] This alternating mold switching dual-station automatic rubber injection molding machine uses a guide sliding frame and a double-layer mold support frame to alternately move two lower molds (molding molds) into and out of the main body of the molding machine for production. On the one hand, it increases the production efficiency of the equipment, and on the other hand, it reduces the production cost of purchasing additional equipment. Moreover, it has a simple structure and is easy to implement. Attached Figure Description

[0017] Figure 1 This is a perspective view of a specific embodiment of the automatic rubber injection molding machine with alternating mold switching and dual stations according to the present invention;

[0018] Figure 2 yes Figure 1 A 3D view of the main body of the molding machine;

[0019] Figure 3 yes Figure 2 Schematic diagram of the structure of the mechanical lifting formwork device;

[0020] Figure 4 yes Figure 1 Schematic diagram of the upper and lower hot plate assemblies;

[0021] Figure 5 yes Figure 2 Schematic diagram of the double-layer formwork support device;

[0022] Figure 6 yes Figure 1 Schematic diagram of the central guide sliding frame and mold insulation device;

[0023] Figure 7 yes Figure 1 Schematic diagram of the installation structure of the intermediate mold;

[0024] Figure 8 yes Figure 1 Schematic diagram of the structure of the lower heating plate assembly bonded to the middle and lower mold;

[0025] Figure 9 yes Figure 1 A schematic diagram of the mold-closing production structure;

[0026] Figure 10 yes Figure 9 A schematic diagram of the mold opening structure;

[0027] Figure 11 yes Figure 1 A schematic diagram of the structure for moving the preformed lower mold in the middle;

[0028] Figure 12 yes Figure 11 A schematic diagram of the structure where the lower mold is removed during the forming process;

[0029] Figure 13 yes Figure 12 Enlarged view of A in the image;

[0030] Figure 14 yes Figure 1 A schematic diagram of the structure of the insulation device for the middle mold and the insulation of the lower mold;

[0031] Figure 15 yes Figure 14 A schematic diagram of the process of manually removing finished products and placing inlays in the center;

[0032] Figure 16 yes Figure 6 A schematic diagram of the reciprocating conveyor mechanism.

[0033] In the diagram: 1. Molding machine body; 2. Guide sliding frame; 3. Mold insulation device; 4. Injection unit; 5. Control unit; 6. Mechanical mold lifting device; 6a. Mechanical mold lifting frame; 7. Double-layer mold support frame device; 7a. First lower mold station; 7b. Second lower mold station; 8. Upper mold; 9. Middle mold; 10. Lower mold; 12. Upper hot plate assembly; 13. Lower hot plate assembly; 14. Reciprocating conveying mechanism; 14a. T-shaped clamping block; 14b. Servo motor; 14c. Moving plate; 14d. Left rack; 14e. Right rack; 14f. Rotating shaft; 14g. Left gear; 14h. Right gear; 15. Lower mold mounting frame; 15a. T-shaped slot; 16. Mold frame up-and-down moving mechanism; 16a. Up-and-down moving cylinder; 16b. Synchronization mechanism; 16c. Rack support column; 16d. Synchronization gear; 16e. Horizontal connecting rod. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0035] like Figures 1 to 16 As shown, this utility model discloses a specific embodiment of an automatic rubber injection molding machine with alternating mold switching and dual stations.

[0036] like Figure 1 and Figure 2As shown, the alternating mold switching dual-station automatic rubber injection molding machine of this embodiment includes a molding machine body 1 and a guide slide frame 2. The molding machine body 1 is provided with a double-layer mold support frame device 7. The double-layer mold support frame device 7 has a first lower mold station 7a and a second lower mold station 7b. A set of lower molds 10 is respectively provided on the guide slide frame 2 and the double-layer mold support frame device 7. The lower molds 10 on the guide slide frame 2 move and alternately switch with the lower molds 10 on the first lower mold station 7a or the second lower mold station 7b.

[0037] In this alternating mold switching dual-station automatic rubber injection molding machine, the lower mold on the guide slide frame has inserts pre-placed outside the main body of the molding machine. After the product is molded inside the main body of the molding machine, the guide slide frame transports the lower mold with the inserts placed to an empty station between the first lower mold station and the second lower mold station, and removes the lower mold with the product molded at the first or second lower mold station. The product is then taken out outside the main body of the molding machine. The operation process is optimized, the equipment has no waiting time, and the production efficiency of the equipment is improved.

[0038] like Figure 12 and Figure 13 As shown, the lower mold 10 is fixed on the lower mold mounting frame 15. One end of the lower mold mounting frame 15 has two T-shaped slots 15a. The guide sliding frame 2 has a reciprocating conveying mechanism 14, which has two T-shaped blocks 14a that cooperate with the two T-shaped slots 15a. When the T-shaped slots 15a and T-shaped blocks 14a are vertically aligned, moving the lower mold mounting frame 15 up and down until the T-shaped slots 15a and T-shaped blocks 14a are at the same horizontal position allows them to connect. Disconnecting them allows them to separate. When the T-shaped slots 15a and T-shaped blocks 14a are connected, the reciprocating conveying mechanism 14 can move the lower mold 10 back and forth via the lower mold mounting frame 15. Disconnecting the T-shaped slots 15a and T-shaped blocks 14a allows for the alternating switching of the two lower molds 10. The lower mold mounting frame 15 can be moved up and down to connect or disconnect the T-shaped slot 15a and the T-shaped block 14a. The structure is simple and the operation is reliable.

[0039] like Figure 5 As shown, the double-layer mold support frame device 7 is provided with a mold frame up-and-down moving mechanism 16 for moving it up and down. The mold frame up-and-down moving mechanism 16 realizes the up-and-down movement of the two lower mold mounting frames 15 on the double-layer mold support frame device 7, which facilitates the connection or disengagement of the T-shaped slot 15a of the lower mold mounting frame 15 with the T-shaped block 14a of the reciprocating conveying mechanism 14, thereby realizing the conveying of one lower mold 10 and the alternating switching of the two lower molds 10.

[0040] like Figure 5As shown, the mold frame vertical movement mechanism 16 includes a vertical movement cylinder 16a and a synchronization mechanism 16b. The moving end of the vertical movement cylinder 16a is connected to the double-layer mold support frame device 7. The synchronization mechanism 16b includes four rack support columns 16c with rack structures supporting the double-layer mold support frame device 7 and four synchronization gears 16d. The synchronization gears 16d mesh with the racks of the rack support columns 16c, and the four synchronization gears 16d are respectively mounted on two transverse connecting rods 16e. The vertical movement cylinder 16a drives the double-layer mold support frame device 7 to move vertically, and the synchronization mechanism 16b ensures that the four rack support columns 16c move vertically synchronously, thus achieving synchronized action.

[0041] like Figure 6 and Figure 16 As shown, the reciprocating conveying mechanism 14 includes a servo motor 14b, a moving plate 14c, a left rack 14d, a right rack 14e, a rotating shaft 14f, a left gear 14g, and a right gear 14h. The servo motor 14b is fixed to the bottom of the moving plate 14c. The left rack 14d and right rack 14e are located on both sides of the moving plate 14c, respectively. The left gear 14g and right gear 14h are respectively installed at both ends of the rotating shaft 14f. The left gear 14g meshes with the left rack 14d, and the right gear 14h meshes with the right rack 14e. The servo motor 14b drives the rotating shaft 14f to rotate. A T-shaped locking block 14a is provided on the moving plate 14c. The rotation of the servo motor 14b drives the left gear 14g and right gear 14h to move back and forth on the left rack 14d and right rack 14e via the rotating shaft 14f, thereby realizing the back and forth movement of the moving plate 14c.

[0042] like Figure 1 and Figure 6 As shown, the bottom of the guide slide frame 2 is equipped with a mold insulation device 3 that moves up and down and fits the lower mold 10. The mold insulation device 3 is used to raise the temperature of the lower mold 10 to meet the mold temperature requirements of the equipment production.

[0043] like Figure 2 and Figure 4 As shown, the bottom of the double-layer mold support device 7 is provided with a lower heating plate assembly 13 that fits against the lower mold 10. The lower heating plate assembly 13 is used for heat preservation of the lower mold 10 to ensure that the mold temperature requirements for production are met.

[0044] like Figure 1 and Figure 2 As shown, the main body 1 of the molding machine also includes an injection unit 4, a control unit 5, a mechanical mold lifting device 6, and an upper heating plate assembly 12. For example... Figure 3 and Figure 4 As shown, the upper mold 8 of the mold is fixed on the upper heating platen assembly 12, and the middle mold 9 of the mold is fixed on the mechanical mold lifting device 6 via the mechanical mold lifting frame 6a. The upper heating platen assembly 12 is used to keep the upper mold 8 warm, ensuring that the mold temperature requirements for production are met; the control unit 5 is used to control the operation of the equipment and realize automated operation.

[0045] like Figure 7 As shown, the automatic rubber injection molding machine with alternating mold switching dual-station operation is equipped with an upper mold 8, a middle mold 9, and two lower molds 10. The lower molds 10 are molding molds. One set of lower molds 10 is set at the first lower mold station 7a or the second lower mold station 7b on the double-layer mold support device 7, and the other set of lower molds 10 is set on the lower mold mounting frame 15 of the guide slide frame 2, which is responsible for loading pre-formed inserts or products and moving them back and forth in conjunction with the guide slide frame 2.

[0046] like Figure 8 As shown, the double-layer mold support device 7 descends, and the lower mold 10, fully loaded with inserts, is pressed tightly against the lower hot plate assembly 13. (As shown...) Figure 9 As shown, the main body of the molding machine 1 is used for injection molding. Figure 10 As shown, the molding machine body 1 opens the mold after injection.

[0047] like Figure 11 As shown, the double-layer mold support device 7 rises, so that the first lower mold station 7a, which is in the gap period, is horizontally aligned with the guide slide frame 2. The reciprocating conveying mechanism 14 pulls the lower mold 10 loaded with inserts on the guide slide frame 2 and transports it to the first lower mold station 7a.

[0048] like Figure 12 As shown, the double-layer mold support device 7 continues to rise, so that the second lower mold station 7b, which has completed production, is horizontally aligned with the guide slide frame 2. That is, the T-shaped slot 15a of the lower mold mounting frame 15 of the second lower mold station 7b is inserted into the T-shaped block 14a of the reciprocating conveying mechanism 14 to achieve the connection between the two. The reciprocating conveying mechanism 14 pulls the finished lower mold 10 to the end position on the guide slide frame 2.

[0049] like Figure 14 As shown, the mold insulation device 3 lifts the hot plate and fits it against the lower mold 10, so that the lower mold 10 can achieve the insulation effect. If the product needs to be ejected, an ejector plate can be added to the mold insulation device 3.

[0050] like Figure 15 As shown, the molded product is manually removed from the lower mold 10, and the pre-formed insert is placed into the lower mold 10, waiting for the next mold to open. After the mold opens, the mold insulation device 3 lowers the hot plate, and the reciprocating conveying mechanism 14 can start working to enter the next cycle.

[0051] This alternating mold switching dual-station automatic rubber injection molding machine uses a guide sliding frame and a double-layer mold support frame to alternately move two lower molds (molding molds) into and out of the main body of the molding machine for production. On the one hand, it increases the production efficiency of the equipment, and on the other hand, it reduces the production cost of purchasing additional equipment. Moreover, it has a simple structure and is easy to implement.

[0052] In summary, as described in the specification and figures, this utility model has been manufactured into actual samples and subjected to multiple use tests. The test results demonstrate that this utility model achieves its intended purpose, and its practicality is beyond doubt. The embodiments described above are merely for illustrative purposes and are not intended to limit the scope of this utility model. Any equivalent embodiments made by those with common knowledge in the relevant technical field, utilizing the technical content disclosed in this utility model, without departing from the scope of the technical features and similar features disclosed in this utility model, are all within the protection scope of this utility model.

Claims

1. An automatic rubber injection molding machine with alternating mold switching and dual stations, characterized in that: The machine includes a molding machine body (1) and a guide slide frame (2). The molding machine body (1) is provided with a double-layer mold support frame device (7). The double-layer mold support frame device (7) has a first lower mold station (7a) and a second lower mold station (7b). The guide slide frame (2) and the double-layer mold support frame device (7) are respectively provided with a set of lower molds. The guide slide frame (2) moves the lower molds on it to alternately switch with the lower molds on the first lower mold station (7a) or the second lower mold station (7b).

2. The automatic rubber injection molding machine with alternating mold switching and dual stations as described in claim 1, characterized in that, The lower mold (10) is fixed on the lower mold mounting frame (15). One end of the lower mold mounting frame (15) is provided with at least one T-shaped slot (15a). The guide sliding frame (2) is provided with a reciprocating conveying mechanism (14). The reciprocating conveying mechanism (14) is provided with a T-shaped block (14a) that cooperates with the T-shaped slot (15a).

3. The automatic rubber injection molding machine with alternating mold switching and dual stations as described in claim 1 or 2, characterized in that, The double-layer mold support frame device (7) is provided with a mold frame up-and-down moving mechanism (16) for moving it up and down.

4. The automatic rubber injection molding machine with alternating mold switching and dual stations as described in claim 3, characterized in that, The mold frame moving mechanism (16) includes a moving cylinder (16a) and a synchronization mechanism (16b). The moving end of the moving cylinder (16a) is connected to the double-layer mold support frame device (7). The synchronization mechanism (16b) includes four rack support columns (16c) with rack structure supporting the double-layer mold support frame device (7) and four synchronization gears (16d). The synchronization gears (16d) mesh with the rack of the rack support column (16c). The four synchronization gears (16d) are respectively set on two transverse connecting rods (16e).

5. The automatic rubber injection molding machine with alternating mold switching and dual stations as described in claim 2, characterized in that, The reciprocating conveying mechanism (14) includes a servo motor (14b), a moving plate (14c), a left rack (14d), a right rack (14e), a rotating shaft (14f), a left gear (14g), and a right gear (14h). The servo motor (14b) is fixed at the bottom of the moving plate (14c). The left rack (14d) and the right rack (14e) are located on both sides of the moving plate (14c). The left gear (14g) and the right gear (14h) are respectively provided at both ends of the rotating shaft (14f). The left gear (14g) meshes with the left rack (14d), and the right gear (14h) meshes with the right rack (14e). The servo motor (14b) drives the rotating shaft (14f) to rotate. The moving plate (14c) is provided with the T-shaped locking block (14a).

6. The automatic rubber injection molding machine with alternating mold switching and dual stations as described in claim 1, characterized in that, The bottom of the guide sliding frame (2) is provided with a mold insulation device (3) that moves up and down and fits the lower mold (10).

7. The automatic rubber injection molding machine with alternating mold switching and dual stations as described in claim 1, characterized in that, The bottom of the double-layer mold support device (7) is provided with a lower heating plate assembly (13) that fits the lower mold (10).

8. The automatic rubber injection molding machine with alternating mold switching and dual stations as described in claim 1, characterized in that, The molding machine body (1) also includes an injection unit (4), a control unit (5), a mechanical mold lifting device (6) and an upper hot plate assembly (12), with the upper mold (8) of the mold fixed on the upper hot plate assembly (12) and the middle mold (9) of the mold fixed on the mechanical mold lifting device (6).

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