Infrared protection mechanism based on mold clamping device

Abstract

The utility model relates to clamping device technical field, concretely relates to infrared protection mechanism based on clamping device, including operation platform, the bottom of operation platform is installed with base, the bottom corner department of operation platform all is installed with support column, the bottom of support column is fixed with base, the middle part of operation platform is opened with the strip slot who sets along operation platform length direction, is provided with the clamping mechanism in the strip slot, the both ends of operation platform all are provided with the support plate, the bottom of support plate is connected with the lifting mechanism, the lifting mechanism is fixed on the base, the top of support plate is installed with arc plate, and the end of arc plate is fixed perpendicularly on the support plate, the utility model discloses setting up the arc plate with infrared emitter and receiver in the both ends of operation platform, forms the infrared ray barrier of multichannel, when the worker's body accidentally enters the operation area and blocks infrared ray, the controller will immediately interrupt the operation of clamping device, effectively avoids the injury of worker, and significantly reduces the potential safety hazard.

Description

Technical Field

[0001] This utility model relates to the field of mold closing device technology, specifically to an infrared protection mechanism based on a mold closing device. Background Technology

[0002] The mold clamping device is an important component of molding machinery such as extrusion molding machines and injection molding machines. It is mainly used to realize the reliable closing, opening and closing of the mold and ejection of the product. Most commonly used mold clamping devices are vertical, but some are horizontal due to limited factory space. Mold clamping devices are usually driven by hydraulic cylinders to control the two molds to move closer to each other to complete the tight mold closure.

[0003] Existing horizontal mold closing devices use detachable molds for easy mold replacement. In addition, oil needs to be applied before mold closing. Therefore, when changing molds or applying oil, it is necessary to manually reach into the device to operate. This means that at least one worker is usually stationed next to the mold closing device during workpiece processing. The worker standing next to the mold closing device inevitably places his / her limbs on the operating table of the device before and after operation, which greatly increases the safety hazards for the worker. For example, the worker may reach into the mold in advance during the mold opening process, or start the device to close the mold before his / her hands have been removed.

[0004] Therefore, an infrared protection mechanism based on the mold clamping device is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an infrared protection mechanism based on a mold closing device, which can solve the problem of the lack of protection capability in the mold closing device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an infrared protection mechanism based on a mold closing device, including an operating table, a base installed below the operating table, and support columns installed at the bottom corners of the operating table, with the bottom of the support columns fixed to the base.

[0007] A strip groove is provided in the middle of the operating table along the length of the operating table, and a mold closing mechanism is provided in the strip groove;

[0008] Support plates are provided at both ends of the operating table. A lifting mechanism is connected to the bottom of the support plate and is fixed to the base. An arc plate is installed on the top of the support plate, and the end of the arc plate is vertically fixed to the support plate. The two arc plates are arranged opposite each other. Several infrared transmitters are installed on one arc plate and several infrared receivers are installed on the other arc plate. The infrared receivers correspond one-to-one with the infrared transmitters.

[0009] This utility model also includes a control box, which is mounted on a fixed frame and the fixed frame is fixed to the side of the operating table. A controller is installed inside the control box, and the controller is connected to the infrared receiver and the infrared transmitter respectively through wires.

[0010] Preferably, the mold clamping mechanism includes a strip seat, which is arranged along the length of the strip groove, and a sliding groove is provided at the bottom of the strip seat. Bearing seats are provided at both ends of the strip groove. A connecting seat is installed at the bottom of the two bearing seats at their relatively far ends. A connecting shaft is installed at both ends of the connecting seat. The connecting shaft is placed in the sliding groove and is rotatably mounted on a telescopic plate at the end of the connecting shaft. The telescopic plate is arranged along the length of the strip groove, and a fixed seat is installed on the outer side of one end of the telescopic plate. The other end of the telescopic plate is fixed to the base, and at least one first hydraulic cylinder is connected to the fixed seat along the length of the strip groove. The other end of the first hydraulic cylinder is fixed to the telescopic plate through a bracket, and the first hydraulic cylinder is connected to the controller through a wire.

[0011] A second hydraulic cylinder is installed at an angle below the support seat. The second hydraulic cylinder is connected to the controller via a wire. The ends of the second hydraulic cylinder are rotatably mounted in the connecting frame. One connecting frame is fixed on the bottom of the support seat away from the connecting seat, and the other connecting frame is fixed on the telescopic plate near the fixed seat.

[0012] Preferably, the telescopic plate includes multiple spaced and staggered connecting plates, with a slider installed at the bottom of the connecting plate. The slider is slidably mounted on a slide rail, which is fixed to the base. Limit seats are installed on both ends of the connecting plate, and the limit seats on adjacent connecting plates are staggered.

[0013] The connecting bracket located at the bottom of the second hydraulic cylinder is fixed to the outermost connecting plate, the fixing seat is connected to one of the connecting plates located at the outermost edge, and the end of the second hydraulic cylinder away from the fixing seat is connected to another connecting plate located at the outermost edge.

[0014] Preferably, the lifting mechanism includes an electric push rod, which is vertically fixed on the base and its top is connected to a support plate. The electric push rod is connected to a controller via a wire.

[0015] Preferably, at least one sleeve is provided parallel to the side of the electric actuator, the bottom of the sleeve is vertically fixed to the base, and a guide shaft is built into the top of the sleeve, with the top of the guide shaft fixed to the support plate.

[0016] Preferably, a touch screen is installed on the outer wall of the control box, and the touch screen is connected to the controller via wires.

[0017] Preferably, a mounting bracket is installed on the top of the support for mounting the mold on the support.

[0018] Compared with the prior art, this utility model provides an infrared protection mechanism based on a mold clamping device, which has the following beneficial effects:

[0019] 1. This utility model forms multiple infrared ray barriers by setting arc-shaped plates with infrared transmitters and receivers at both ends of the operating table. When a worker's limb accidentally enters the operating area and blocks the infrared rays, the controller will immediately stop the operation of the mold closing device, effectively avoiding worker injury and significantly reducing safety hazards.

[0020] 2. This utility model uses a lifting mechanism to adjust the height of the arc plate, which can provide protection when the mold closing device is running, and can also store the arc plate when it is lowered in the non-working state to avoid damage to the equipment. At the same time, it facilitates mold replacement and maintenance operations. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the infrared protection mechanism based on the mold clamping device of this utility model. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the infrared protection mechanism based on the mold clamping device of this utility model. Figure 2 ;

[0023] Figure 3 This is a top view of the infrared protection mechanism based on the mold clamping device of this utility model;

[0024] Figure 4 This is a side view of the infrared protection mechanism based on the mold clamping device of this utility model;

[0025] Figure 5 This is a schematic diagram of the connecting plate structure of the infrared protection mechanism based on the mold closing device of this utility model.

[0026] In the diagram: 1. Operating table; 2. Base; 3. Support column; 4. Strip groove; 5. Strip seat; 6. Slide groove; 7. Bearing seat; 8. Mounting bracket; 9. Connecting seat; 10. Second hydraulic cylinder; 11. Connecting plate; 12. Fixed seat; 13. First hydraulic cylinder; 14. Slide rail; 15. Support plate; 16. Arc plate; 17. Infrared transmitter; 18. Infrared receiver; 19. Electric push rod; 20. Sleeve; 21. Guide shaft; 22. Control box; 23. Fixed bracket; 24. Limit seat. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example:

[0029] Please see Figure 1 - Figure 5 The infrared protection mechanism based on the mold closing device in this embodiment includes an operating table 1, a base 2 installed below the operating table 1, and support columns 3 installed at the bottom corners of the operating table 1. The bottom of the support columns 3 is fixed to the base 2.

[0030] A strip groove 4 is provided in the middle of the operating table 1 along the length of the operating table 1, and a mold closing mechanism is provided in the strip groove 4.

[0031] Among them, such as Figure 1 As shown, the mold clamping mechanism includes a strip seat 5, which is arranged along the length of the strip groove 4, and a sliding groove 6 is provided at the bottom of the strip seat 5. A bearing seat 7 is provided at both ends of the strip groove 4. A connecting seat 9 is installed at the bottom of the two bearing seats 7 that are relatively far apart. A connecting shaft is installed at both ends of the connecting seat 9. The connecting shaft is placed in the sliding groove 6, allowing the bearing seat 7 to rotate freely in the strip groove 4 and to move linearly along the length of the strip groove 4. The end of the connecting shaft is rotatably mounted on a telescopic plate, which is arranged along the length of the strip groove 4. A fixed seat 12 is installed on the outer side of one end of the telescopic plate, and the other end of the telescopic plate is fixed to the base 2. At least one first hydraulic cylinder 13 is connected to the fixed seat 12, which is arranged along the length of the strip groove 4. The other end of the first hydraulic cylinder 13 is fixed to the telescopic plate through a bracket. The first hydraulic cylinder 13 provides power for the linear movement of the bearing seat 7.

[0032] like Figure 2 As shown, a second hydraulic cylinder 10 is provided at an angle below the support seat 7. The ends of the second hydraulic cylinder 10 are rotatably mounted in the connecting frame. One connecting frame is fixed on the bottom of the support seat 7 away from the connecting seat 9, and the other connecting frame is fixed on the telescopic plate near the fixed seat 12. The second hydraulic cylinder 10 provides power for the flipping of the support seat 7.

[0033] Specifically, such as Figure 3As shown, a mounting bracket 8 is installed on the top of the support seat 7 for mounting the mold on the support seat 7. In use, the second hydraulic cylinder 10 can be driven to rotate the support seat 7 to the horizontal position on the top surface, and then two molds can be taken out and installed on the two support seats 7 respectively. After that, the second hydraulic cylinder 10 can be started again to rotate the support seat 7 to the vertical direction so that the two molds are set opposite each other. Then the first hydraulic cylinder 13 operates to bring the two molds closer together to complete the mold closing operation.

[0034] In actual use, both the first hydraulic cylinder 13 and the second hydraulic cylinder 10 are connected to the hydraulic station through conduits, with the hydraulic station located on one side of the base 2.

[0035] like Figure 1 and Figure 5 As shown, the telescopic plate includes multiple spaced and staggered connecting plates 11. A slider is installed on the bottom of the connecting plate 11, and the slider is slidably mounted on the slide rail 14. The slide rail is fixed on the base 2. Limit seats 24 are installed on both sides of the connecting plate 11, and the limit seats 24 on two adjacent connecting plates 11 are staggered. When one connecting plate 11 moves, as the connecting plate 11 approaches the other connecting plate 11, the limit seats 24 will contact each other. Then, under continued operation, a transmission action can be performed between the two adjacent connecting plates 11 so that the connecting plates 11 can be unfolded and retracted.

[0036] The connecting bracket at the bottom of the second hydraulic cylinder 10 is fixed to the outermost connecting plate 11. The fixing seat 12 is connected to one of the connecting plates 11 located at the outermost edge. The end of the second hydraulic cylinder 10 away from the fixing seat 12 is connected to another connecting plate 11 located at the outermost edge. This can block the lower sides of the strip groove 4 without affecting the mold closing operation.

[0037] like Figure 1 and Figure 4 As shown, support plates 15 are provided at both ends of the operating table 1. A lifting mechanism is connected to the bottom of the support plate 15. The lifting mechanism is fixed on the base 2. The lifting mechanism includes an electric push rod 19, which is vertically fixed on the base 2. The top of the electric push rod 19 is connected to the support plate 15, so that the support plate 15 can be lifted and lowered on the side of the operating table 1.

[0038] Furthermore, at least one sleeve 20 is provided parallel to the side of the electric push rod 19. The bottom of the sleeve 20 is vertically fixed to the base 2, and a guide shaft 21 is built into the top of the sleeve 20. The top of the guide shaft 21 is fixed to the support plate 15. As the support plate 15 rises and falls, the guide shaft 21 can slide inside the sleeve 20 to provide guidance for the rise and fall of the support plate 15 and ensure the stability of the rise and fall of the support plate 15. In actual use, the two electric push rods 19 are of the same specifications and operate synchronously to ensure that the two support plates 15 are always at the same height.

[0039] like Figure 1 As shown, an arc-shaped plate 16 is installed on the top of the support plate 15. The ends of the arc-shaped plate 16 are vertically fixed to the support plate 15, and the two arc-shaped plates 16 are arranged opposite each other. Several infrared emitters 17 are installed on one of the arc-shaped plates 16, and several infrared receivers 18 are installed on the other arc-shaped plate 16. The infrared receivers 18 correspond one-to-one with the infrared emitters 17. That is, there are multiple infrared rays arranged in an arc shape above the operating table 1, so that when the worker extends his limbs to the operating table 1 from various angles above the operating table 1, he will touch at least one of the infrared rays.

[0040] The lifting mechanism can lower the arc plate 16 for storage when the mold closing device is not in use, in order to prevent accidental bumps from damaging the arc plate 16, etc.

[0041] This utility model also includes a control box 22, which is mounted on a fixed frame 23 and fixed to the side of the operating table 1. A controller is installed inside the control box 22. The controller is connected to the infrared receiver 18, infrared transmitter 17, first hydraulic cylinder 13, second hydraulic cylinder 10, electric push rod 19, and hydraulic station via wires. In actual use, the controller can be one of a PLC logic controller, a control motherboard, or a control host. When the controller is a PLC logic controller, its model is S7-300 / 400. It executes the user-written program through cyclic scanning to control the input / output devices, thereby intelligently controlling the infrared receiver 18, infrared transmitter 17, first hydraulic cylinder 13, second hydraulic cylinder 10, electric push rod 19, and hydraulic station. When a worker's limb comes into contact with infrared rays, an obstruction is created between the infrared receiver 18 and the infrared transmitter 17, thus blocking the infrared receiver 18 from receiving infrared signals. This feedback can then be sent to the controller, interrupting the operation of the entire device to prevent worker injury.

[0042] Specifically, in actual use, the infrared transmitter 17 and the infrared receiver 18 are collectively referred to as an infrared beam sensor, model TSAL6200. The infrared transmitter 17 emits modulated infrared light (usually a 38kHz pulse to avoid interference from ambient light) to the infrared receiver 18. After receiving the infrared light emitted by the infrared transmitter 17, the infrared receiver 18 transmits a signal to the controller. When the beam is blocked, the signal transmitted by the infrared receiver 18 to the controller will change, such as from a high level to a low level. In this way, the controller will send command information to control the device as soon as possible upon receiving the signal change, such as controlling the start and stop of the first hydraulic cylinder 13, the second hydraulic cylinder 10, the electric push rod 19, etc.

[0043] Furthermore, in actual use, the hydraulic station model is YBX-40-20, and the motor drives the hydraulic pump (gear pump, vane pump, piston pump) to convert mechanical energy into hydraulic energy, that is, output high-pressure oil into the first hydraulic cylinder 13 and the second hydraulic cylinder 10, or pump the high-pressure oil in the first hydraulic cylinder 13 and the second hydraulic cylinder 10 back to the oil tank of the hydraulic station, so as to realize the operation of the first hydraulic cylinder 13 and the second hydraulic cylinder 10.

[0044] It should be noted that a touch screen is installed on the outer wall of the control box 22. The touch screen is connected to the controller via wires, and the operator can operate and control the mold closing device from the side of the operating table 1.

[0045] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An infrared protection mechanism based on a mold clamping device, characterized in that: It includes an operating table (1), a base (2) is installed below the operating table (1), and support columns (3) are installed at the bottom corners of the operating table (1), with the bottom of the support columns (3) fixed to the base (2). The operation table (1) has a strip groove (4) in the middle part, which is arranged along the length of the operation table (1), and a mold closing mechanism is provided in the strip groove (4); The operating table (1) is provided with support plates (15) at both ends. The bottom of the support plate (15) is connected to a lifting mechanism, which is fixed on the base (2). An arc plate (16) is installed on the top of the support plate (15). The end of the arc plate (16) is vertically fixed on the support plate (15). The two arc plates (16) are arranged opposite to each other. Several infrared emitters (17) are installed on one arc plate (16) and several infrared receivers (18) are installed on the other arc plate (16). The infrared receivers (18) correspond one-to-one with the infrared emitters (17). It also includes a control box (22), which is mounted on a fixed frame (23) and fixed to the side of the operating table (1). The control box (22) contains a controller, which is connected to the infrared receiver (18) and the infrared transmitter (17) respectively via wires.

2. The infrared protection mechanism based on the mold clamping device according to claim 1, characterized in that: The mold clamping mechanism includes a strip seat (5), which is arranged along the length of the strip groove (4). A sliding groove (6) is provided at the bottom of the strip seat (5). Both ends of the strip groove (4) are provided with bearing seats (7). A connecting seat (9) is installed at the bottom of the two bearing seats (7) that are far apart from each other. A connecting shaft is installed at both ends of the connecting seat (9). The connecting shaft is placed in the sliding groove (6). The end of the connecting shaft is rotatably mounted on a telescopic plate. The telescopic plate is arranged along the length of the strip groove (4). A fixed seat (12) is installed on the outer side of one end of the telescopic plate. The other end of the telescopic plate is fixed on the base (2). At least one first hydraulic cylinder (13) is connected to the fixed seat (12) along the length of the strip groove (4). The other end of the first hydraulic cylinder (13) is fixed to the telescopic plate by a bracket. The first hydraulic cylinder (13) is connected to the controller by a wire. A second hydraulic cylinder (10) is provided at an incline below the support seat (7). The second hydraulic cylinder (10) is connected to the controller via a wire. The ends of the second hydraulic cylinder (10) are rotatably mounted in the connecting frame. One of the connecting frames is fixed on the bottom of the end of the support seat (7) away from the connecting seat (9), and the other connecting frame is fixed on the telescopic plate provided near the fixed seat (12).

3. The infrared protection mechanism based on the mold clamping device according to claim 2, characterized in that: The telescopic plate includes multiple spaced and staggered connecting plates (11). A slider is installed at the bottom of the connecting plate (11). The slider is slidably installed on the slide rail (14). The slide rail is fixed on the base (2). Limit seats (24) are installed on both ends of the connecting plate (11), and the limit seats (24) on two adjacent connecting plates (11) are staggered. The connecting frame located at the bottom of the second hydraulic cylinder (10) is fixed to the outermost connecting plate (11), the fixing seat (12) is connected to one of the connecting plates (11) located at the outermost edge, and the end of the second hydraulic cylinder (10) away from the fixing seat (12) is connected to the other connecting plate (11) located at the outermost edge.

4. The infrared protection mechanism based on the mold clamping device according to claim 1, characterized in that: The lifting mechanism includes an electric push rod (19), which is vertically fixed on the base (2). The top of the electric push rod (19) is connected to the support plate (15), and the electric push rod (19) is connected to the controller through a wire.

5. The infrared protection mechanism based on the mold clamping device according to claim 4, characterized in that: The electric push rod (19) has at least one sleeve (20) parallel to its side. The bottom of the sleeve (20) is vertically fixed to the base (2). The top of the sleeve (20) has a built-in guide shaft (21). The top of the guide shaft (21) is fixed to the support plate (15).

6. The infrared protection mechanism based on the mold clamping device according to claim 1, characterized in that: A touch screen is installed on the outer wall of the control box (22), and the touch screen is connected to the controller via wires.

7. The infrared protection mechanism based on the mold clamping device according to claim 2, characterized in that: An mounting bracket (8) is installed on the top of the support (7) for mounting the mold on the support (7).

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