Interlock guard door for die casting machine

Abstract

The utility model provides a kind of die casting machine interlock protective door, belong to safety device technical field, to solve the existing worker's attention to the opening and closing action of protective door, it is easy to be squeezed because of avoiding protective door not in time the problem of being injured, including die casting machine main body, protective door main body, protective drive box, protective limit boss, protective driving part, protective drive mechanism and protective warning mechanism;The protective door main body is slidably connected above the front end of die casting machine main body;The protective drive box is slidably connected above the front end of die casting machine main body;The protective limit boss is fixedly connected in the front lower side of protective door main body;The protective driving part is rotatably connected to the right side of protective drive box;The protective drive mechanism is arranged inside protective drive box;The protective warning mechanism is arranged above the front end of die casting machine main body, solve the safety hazard caused by the opening and closing action of the existing protective door main body because worker neglects.

Description

Technical Field

[0001] This utility model belongs to the technical field of safety protection devices, and more specifically, it relates to an interlocking protective door for a die-casting machine. Background Technology

[0002] The interlocking protective door of the die-casting machine is a core safety protection device in die-casting production equipment. It is designed to isolate dangerous scenarios such as high-temperature molten metal splashes and accidental injury from moving parts during the die-casting process. It achieves safety protection through the coordinated mechanism of mechanical interlocking and electrical interlocking. Its core principle is: after the door is closed, it needs to complete the mechanical positioning through the locking structure of the locking tongue, and at the same time trigger the detection elements such as the limit switch. Only when the mechanical locking signal and the electrical closing signal are confirmed synchronously can the die-casting machine start operation.

[0003] Existing application number: CN201820912490.6. This utility model discloses a protective door for a die-casting machine, including a door body, a handle, and upper and lower guide rails respectively disposed at the upper and lower ends of the door body. The upper guide rail is fixedly connected to the lower guide rail through a support frame. The upper guide rail is composed of a first upper guide rail and a second upper guide rail arranged in parallel. An upper rotating cylinder is provided between the first upper guide rail and the second upper guide rail. Connecting rods are welded to both sides of the upper end of the upper rotating cylinder. The connecting rods are slidably connected to the first and second upper guide rails through bearings. The lower end of the upper rotating cylinder has a hollow structure. A lower rotating cylinder is provided below the upper rotating cylinder. The lower rotating cylinder is slidably connected to the lower guide rail. A rotating shaft is movably connected between the upper rotating cylinder and the lower rotating cylinder. The door body is fixedly installed on the side of the rotating shaft. This utility model has a simple structure, is practical and convenient, and solves the problem that existing protective doors for die-casting machines can only move in parallel and are not easy to clean.

[0004] Based on the above, the existing die-casting machine protective doors are generally opened and closed by electric control during operation. However, many times, because workers do not pay attention to the opening and closing of the protective doors, they are easily squeezed and injured when they try to avoid the protective doors in time, which poses certain safety hazards. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides an interlocking protective door for die-casting machines. This addresses the issue that existing protective doors for die-casting machines are typically opened and closed electrically, but often workers are not paying attention to the opening and closing actions of the protective door and are easily injured by being squeezed while trying to avoid it, posing a certain safety hazard.

[0006] The purpose and effect of this utility model's interlocking protective door for die-casting machines are achieved through the following specific technical means: An interlocking protective door for a die-casting machine includes a die-casting machine body, a protective door body, a protective drive box, a protective limiting protrusion, a protective drive component, a protective drive mechanism, and a protective warning mechanism. The protective door body is slidably connected to the upper front end of the die-casting machine body. The protective drive box is slidably connected to the upper front end of the die-casting machine body. The protective limiting protrusion is fixedly connected to the lower front side of the protective door body. The protective drive component is rotatably connected to the right side of the protective drive box, and the protective drive component has a V-shaped structure with an L-shaped groove and a U-shaped groove structure at its rear. The protective drive mechanism is located inside the protective drive box. The protective warning mechanism is located at the upper front end of the die-casting machine body.

[0007] Furthermore, the protective drive mechanism includes a protective drive motor and a protective drive screw; the protective drive motor is fixedly connected to the left side of the die-casting machine body, and the die-casting machine body is electrically connected to the control circuit of the protective drive motor through a timing controller; the protective drive screw is rotatably connected to the front end of the die-casting machine body, the left end of the protective drive screw is coaxially fixedly connected to the output shaft of the protective drive motor, and the protective drive screw is threadedly connected to the protective drive box.

[0008] Furthermore, the protective drive mechanism also includes a protective trigger rack and a protective trigger gear; the protective trigger rack is fixedly connected to the upper left side of the die-casting machine body; the protective trigger gear is rotatably connected to the front of the protective drive box, and the protective trigger gear meshes with the protective trigger rack.

[0009] Furthermore, the protective drive mechanism also includes a protective trigger ratchet; the protective trigger ratchet consists of two parts: a ratchet and a pawl, and the ratchet part of the protective trigger ratchet is coaxially and fixedly connected to the protective trigger gear.

[0010] Furthermore, the protective drive mechanism also includes a protective drive worm and a protective drive worm wheel; the protective drive worm is rotatably connected inside the protective drive housing, and is coaxially fixedly connected to the rear of the pawl portion of the protective trigger ratchet; the protective drive worm wheel is rotatably connected inside the protective drive housing, and is coaxially fixedly connected to the protective drive component, and meshes with the protective drive worm.

[0011] Furthermore, the protective warning mechanism includes: an on / off warning light and a warning switch; the on / off warning light is fixedly connected to the top of the die-casting machine body; the warning switch is fixedly connected to the left side of the protective drive component, and the warning switch is electrically connected to the on / off warning light.

[0012] Compared with the prior art, the present invention has the following beneficial effects: This invention, through the setting of a protective drive mechanism and the mechanical linkage structure during the closing process of the protective door body, achieves automatic locking and positioning of the protective door body. The L-shaped groove of the protective drive component reliably limits the protective limit protrusion, effectively preventing the protective door body from being accidentally opened during equipment operation, and significantly improving the safety protection level of die-casting operations. When opening the protective door, an additional step of manually rotating the protective trigger gear is required, forcibly guiding workers to pay attention to the opening action of the protective door. From the operation process, it reminds workers to avoid the risk of crushing injuries that may be caused by the opening and closing of the door. It solves the safety hazards caused by workers neglecting the opening and closing action of existing protective doors, and improves the overall safety of the protective door body.

[0013] This utility model, through the setting of a protective warning mechanism, ensures that when the protective limit protrusion is inside the U-shaped groove of the protective drive component, a set of warning switches is pressed, controlling the red LED of the warning light to illuminate, thus alerting the worker that the protective door is in operation. When the protective limit protrusion is inside the L-shaped groove of the protective drive component, another set of warning switches is pressed, controlling the green LED of the warning light to illuminate, reminding the worker that the protective door is in a stopped state. This achieves precise switching between the red and green LEDs of the warning light, making the operating / stopping status of the protective door visible and intuitive. Workers can quickly identify the safety status of the equipment without close inspection, effectively solving the problem of unclear status judgment in complex workshop conditions. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the protective drive screw structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the cooperation between the protective limiting protrusion and the protective driving component of this utility model.

[0017] Figure 4 This is a schematic diagram of the protective trigger ratchet structure of this utility model.

[0018] Figure 5 This is a schematic diagram of the protective drive component structure of this utility model.

[0019] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Die-casting machine body; 101. Protective drive motor; 102. Protective drive screw; 103. Protective trigger rack; 104. Protective trigger gear; 105. Protective trigger ratchet; 106. Protective drive worm; 107. Protective drive worm wheel; 2. Protective door body; 201. Opening and closing warning light; 202. Warning switch; 3. Protective drive box; 4. Protective limit protrusion; 5. Protective drive components. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] Example 1: As attached Figure 1 To be continued Figure 5 As shown: This utility model provides an interlocking protective door for a die-casting machine, including a die-casting machine body 1, a protective door body 2, a protective drive box 3, a protective limiting protrusion 4, a protective drive component 5, and a protective drive mechanism; the protective door body 2 is slidably connected to the upper front end of the die-casting machine body 1; the protective drive box 3 is slidably connected to the upper front end of the die-casting machine body 1; the protective limiting protrusion 4 is fixedly connected to the lower front side of the protective door body 2; the protective drive component 5 is rotatably connected to the right side of the protective drive box 3, the protective drive component 5 has a V-shaped structure, and an L-shaped groove and a U-shaped groove structure are provided at the rear of the protective drive component 5; the protective drive mechanism is located inside the protective drive box 3.

[0022] The protective drive mechanism includes a protective drive motor 101 and a protective drive screw 102. The protective drive motor 101 is fixedly connected to the left side of the die-casting machine body 1, and the die-casting machine body 1 is electrically connected to the control circuit of the protective drive motor 101 through a timing controller. The protective drive screw 102 is rotatably connected to the front end of the die-casting machine body 1. The left end of the protective drive screw 102 is coaxially fixedly connected to the output shaft of the protective drive motor 101, and the protective drive screw 102 is threadedly connected to the protective drive box 3.

[0023] The protective drive mechanism also includes a protective trigger rack 103 and a protective trigger gear 104. The protective trigger rack 103 is fixedly connected to the upper left side of the die-casting machine body 1. The protective trigger gear 104 is rotatably connected to the front of the protective drive box 3, and the protective trigger gear 104 meshes with the protective trigger rack 103.

[0024] The protective drive mechanism also includes a protective trigger ratchet 105. The protective trigger ratchet 105 consists of a ratchet and a pawl. The ratchet part of the protective trigger ratchet 105 is coaxially and fixedly connected to the protective trigger gear 104.

[0025] The protective drive mechanism also includes a protective drive worm 106 and a protective drive worm wheel 107. The protective drive worm 106 is rotatably connected inside the protective drive housing 3 and is coaxially fixedly connected to the rear of the pawl portion of the protective trigger ratchet 105. The protective drive worm wheel 107 is rotatably connected inside the protective drive housing 3 and is coaxially fixedly connected to the protective drive component 5. The protective drive worm wheel 107 meshes with the protective drive worm 106.

[0026] The specific usage and function of this embodiment are as follows: When the protective door body 2 is closed, the protective drive motor 101 is started. The output shaft of the protective drive motor 101 rotates, driving the protective drive screw 102 to rotate. The rotation of the protective drive screw 102 drives the protective drive box 3 to move to the left. The leftward movement of the protective drive box 3 drives the protective drive component 5 to move to the left. At this time, the U-shaped groove of the protective drive component 5 cooperates with the protective limiting protrusion 4 to drive the protective door body 2 to move to the left. Simultaneously, the leftward movement of the protective drive box 3 also drives the protective trigger gear 104 to contact the protective trigger rack 103. The protective trigger rack 103 drives the protective trigger gear 104 to rotate. The rotation of the protective trigger gear 104 drives the protective trigger ratchet 105 to rotate. At this time, the ratchet and pawl of the protective trigger ratchet 105 are in a engaged state. The rotation of the protective trigger ratchet 105 drives the protective drive worm gear 106 to rotate, which in turn drives the protective drive worm wheel 107 to rotate. The rotation of the protective drive worm wheel 107 drives the protective drive component 5 to rotate. The rotation of the protective drive component 5 disengages the protective limiting protrusion 4 from the U-shaped groove of the protective drive component 5. At this time, the protective drive component 5 is separated from the protective limiting protrusion 4. At the same time, the L-shaped groove of the protective drive component 5 restricts the protective limiting protrusion 4 from moving to the right, preventing the protective door body 2 from opening. When it is necessary to open the protective door body 2, the worker needs to manually rotate the protective trigger gear 104 first. The rotation of the protective trigger gear 104 drives the U-shaped groove of the protective drive component 5 to re-engage with the protective limiting protrusion 4, increasing the operation steps for opening the protective door body 2 and making the worker pay attention to the opening of the protective door body 2.

[0027] Example 2: This utility model provides an interlocking protective door for a die-casting machine, based on Embodiment 1, as shown in the appendix. Figure 1 and attached Figure 2 As shown, it also includes a protective warning mechanism, which is located at the upper front end of the die-casting machine body 1.

[0028] The protective warning mechanism includes: an on / off warning light 201 and a warning switch 202; the on / off warning light 201 is equipped with green and red LEDs and is fixedly connected to the top of the die-casting machine body 1; there are two sets of warning switches 202, both of which are push-button switches, and the two sets of warning switches 202 are respectively fixedly connected to the inside of the U-shaped groove and L-shaped groove of the protective drive component 5, and the two sets of warning switches 202 are electrically connected to the green and red LEDs of the on / off warning light 201.

[0029] The specific usage and function of this embodiment are as follows: When the protective limiting protrusion 4 is inside the U-shaped groove of the protective driving component 5, a set of warning switches 202 is pressed, and the warning switches 202 control the red LED of the warning light 201 to light up, so as to remind the worker that the protective door body 2 is in the running state. When the protective limiting protrusion 4 is inside the L-shaped groove of the protective driving component 5, another set of warning switches 202 is pressed, and the warning switches 202 control the green LED of the warning light 201 to light up, so as to remind the worker that the protective door body 2 is in the stopped state.

[0030] The following points should be noted in this article: 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0031] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0032] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A die-casting machine interlocking protective door, characterized in that: The device includes a die-casting machine body (1), a protective door body (2), a protective drive box (3), a protective limiting protrusion (4), a protective drive component (5), a protective drive mechanism, and a protective warning mechanism. The protective door body (2) is slidably connected to the upper front end of the die-casting machine body (1). The protective drive box (3) is slidably connected to the upper front end of the die-casting machine body (1). The protective limiting protrusion (4) is fixedly connected to the lower front side of the protective door body (2). The protective drive component (5) is rotatably connected to the right side of the protective drive box (3). The protective drive component (5) has a V-shaped structure, and an L-shaped groove and a U-shaped groove structure are provided at the rear of the protective drive component (5). The protective drive mechanism is located inside the protective drive box (3). The protective warning mechanism is located at the upper front end of the die-casting machine body (1).

2. The interlocking protective door for a die-casting machine as described in claim 1, characterized in that: The protective drive mechanism includes a protective drive motor (101) and a protective drive screw (102). The protective drive motor (101) is fixedly connected to the left side of the die-casting machine body (1). The die-casting machine body (1) is electrically connected to the control circuit of the protective drive motor (101) through a timing controller. The protective drive screw (102) is rotatably connected to the front end of the die-casting machine body (1). The left end of the protective drive screw (102) is coaxially fixedly connected to the output shaft of the protective drive motor (101). The protective drive screw (102) is threadedly connected to the protective drive box (3).

3. The interlocking protective door for a die-casting machine as described in claim 1, characterized in that: The protective drive mechanism also includes a protective trigger rack (103) and a protective trigger gear (104); the protective trigger rack (103) is fixedly connected to the upper left side of the die-casting machine body (1); the protective trigger gear (104) is rotatably connected to the front of the protective drive box (3), and the protective trigger gear (104) meshes with the protective trigger rack (103).

4. The interlocking protective door for a die-casting machine as described in claim 1, characterized in that: The protective drive mechanism also includes a protective trigger ratchet (105); the protective trigger ratchet (105) consists of a ratchet and a pawl, and the ratchet part of the protective trigger ratchet (105) is coaxially and fixedly connected to the protective trigger gear (104).

5. The interlocking protective door for a die-casting machine as described in claim 1, characterized in that: The protective drive mechanism further includes a protective drive worm (106) and a protective drive worm wheel (107); the protective drive worm (106) is rotatably connected inside the protective drive box (3), and the protective drive worm (106) is coaxially fixedly connected behind the pawl portion of the protective trigger ratchet (105); the protective drive worm wheel (107) is rotatably connected inside the protective drive box (3), the protective drive worm wheel (107) is coaxially fixedly connected to the protective drive component (5), and the protective drive worm wheel (107) meshes with the protective drive worm (106).

6. The interlocking protective door for a die-casting machine as described in claim 1, characterized in that: The protective warning mechanism includes: an on / off warning light (201) and a warning switch (202); the on / off warning light (201) is fixedly connected to the top of the die-casting machine body (1); the warning switch (202) is a push-button switch structure, the warning switch (202) is fixedly connected to the left side of the protective drive component (5), and the warning switch (202) is electrically connected to the on / off warning light (201).

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