Machine door limiting device

Abstract

The utility model discloses a machine door limiting device, the limiting device is connected to a guide rail, the guide rail is used for supporting a roller on a machine door, the limiting device comprises at least one limiting plate and at least one limiting convex block, the limiting plate and the limiting convex block are both connected to the guide rail, and when the machine door drives the roller to move to the position between the limiting plate and the limiting convex block along the guide rail, the limiting plate is connected with the limiting convex block. And the rolling wheels are limited through the limiting plates and the limiting convex blocks. According to the utility model, when the machine door is closed, the roller is limited between the limiting plate and the limiting lug, so that the resistance of the roller to roll back is increased, and the machine door can be always closed even if the injection molding machine vibrates during working.

Description

Technical Field

[0001] This utility model relates to a door limiting device. Background Technology

[0002] As the superior properties of plastics are continuously explored, injection molding can produce complex and large products with high efficiency and convenient production, and the application market for injection molded products continues to expand.

[0003] The machine door is an important component of the injection molding machine. During the operation of the injection molding machine, the machine door should be closed. When the injection molding machine is running, vibration will occur. Since there is no limit device for the machine door, it may open, which will affect safety. Utility Model Content

[0004] The purpose of this utility model is to provide a technical solution for a door limiting device that addresses the shortcomings of existing technologies. When the door is closed, the roller is limited between the limiting plate and the limiting protrusion, increasing the resistance of the roller rolling back. Even if the injection molding machine vibrates during operation, the door can still be kept closed.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A machine door limiting device is provided, wherein the limiting device is connected to a guide rail, and the guide rail is used to support rollers on the machine door. The device is characterized in that it includes at least one limiting plate and at least one limiting protrusion, both of which are connected to the guide rail. When the machine door drives the rollers to move along the guide rail between the limiting plate and the limiting protrusion, the limiting plate and the limiting protrusion limit the rollers. Through this structural design, when the machine door is closed, the rollers are limited to the limiting plate and the limiting protrusion, increasing the resistance to the rollers rolling back. Even if the injection molding machine vibrates during operation, the machine door can still be kept closed.

[0007] Furthermore, the limiting plate abuts against the outer edge of the roller, and the limiting protrusion abuts against the outer circumferential recess of the roller. The limiting plate and the limiting protrusion can limit the roller to prevent it from continuing to roll after the machine door is closed, thereby improving the safety of the injection molding machine during operation.

[0008] Furthermore, the limiting plate includes a plate body, one side of which is provided with a first slope, a first support surface, a second slope, and a second support surface. The first slope is connected to the second slope through the first support surface, and the second slope is connected to the second support surface. Through the design of the first slope, the first support surface, the second slope, and the second support surface, the machine door can be slowed down by the first slope during the closing process, then vertically pre-tightened by the first support surface, and then the machine door is pushed further to make the roller roll into the second support surface along the second slope. The roller is limited by the limiting protrusion and the second slope, so that the machine door is always in the closed state when the injection molding machine is working.

[0009] Furthermore, the inclination angle of the second slope is greater than that of the first slope, which not only slows down the closing speed of the door, but also limits the door after it closes, ensuring it remains closed.

[0010] Furthermore, the first slope is an inclined straight plane, which helps the roller to smoothly reach the first support surface during deceleration.

[0011] Furthermore, the second slope is either an arc surface or a straight plane, which is beneficial for the limiting protrusion to limit the roller.

[0012] Furthermore, both the first and second support surfaces are straight planes used to support the rollers.

[0013] Furthermore, the plate has rounded corners around its perimeter.

[0014] Furthermore, the guide rails include an upper guide rail and a lower guide rail arranged parallel to each other, and the machine door moves along the upper and lower guide rails by rollers distributed vertically.

[0015] Furthermore, the ends of the upper and lower guide rails are connected by a rear support, which improves the connection stability between the upper and lower guide rails.

[0016] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0017] This invention can limit the rollers to be positioned between the limiting plate and the limiting protrusion when the machine door is closed, increasing the resistance of the rollers rolling back, so that the machine door can always be closed even if the injection molding machine vibrates during operation. Attached image description:

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 This is a diagram illustrating the effect of a door limiting device according to this utility model during the door closing process.

[0020] Figure 2 This is a rendering of the rollers supported on the limiting plate in this utility model.

[0021] Figure 3 This is a diagram illustrating the effect of the limiting device in this utility model limiting the roller.

[0022] Figure 4 for Figure 3 A magnified view of a section at point I;

[0023] Figure 5 This is a schematic diagram of the limiting plate in this utility model.

[0024] In the diagram: 1-Limiting plate; 101-Plate body; 102-Mounting hole; 103-First slope; 104-First support surface; 105-Second slope; 106-Second support surface; 107-Rounded corner;

[0025] 2-Limiting protrusion; 3-Mounting block; 4-Lower guide rail; 5-Upper guide rail; 6-Machine door;

[0026] 7-Roller; 701-Outer ring edge; 702-Outer circumferential recess;

[0027] 8-Rear support of the guide rail. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0031] like Figures 1 to 5 As shown, this utility model provides a door limiting device. The limiting device is connected to a guide rail, which supports the rollers 7 on the door 6.

[0032] The guide rails include an upper guide rail 5 and a lower guide rail 4 arranged parallel to each other. The machine door 6 moves along the upper guide rail 5 and the lower guide rail 4 via rollers 7 distributed vertically.

[0033] The ends of the upper guide rail 5 and the lower guide rail 4 are connected by the guide rail rear support 8, which improves the connection stability between the upper guide rail 5 and the lower guide rail 4.

[0034] The limiting device includes at least one limiting plate 1 and at least one limiting protrusion 2. Both the limiting plate 1 and the limiting protrusion 2 are connected to the guide rail. In this application, one limiting plate 1 and one limiting protrusion 2 are preferred. The limiting protrusion 2 is connected to the lower guide rail 4 through the mounting block 3. The limiting plate 1 is fixedly connected to the lower guide rail 4 by fastening screws passing through the mounting holes 102 on the limiting plate 1.

[0035] The limiting plate 1 abuts against the outer edge 701 of the roller 7, and the limiting protrusion 2 abuts against the outer circumferential recess 702 of the roller 7. The limiting plate 1 and the limiting protrusion 2 can limit the roller 7 to prevent it from continuing to roll after the machine door 6 is closed, thereby improving the safety of the injection molding machine during operation.

[0036] The limiting plate 1 includes a plate body 101. One side of the plate body 101 is provided with a first slope 103, a first support surface 104, a second slope 105, and a second support surface 106. The first slope 103 is connected to the second slope 105 via the first support surface 104. The inclination angle of the second slope 105 is greater than that of the first slope 103. This not only slows down the closing speed of the machine door 6 but also limits the closing of the machine door 6, ensuring it remains closed. The plate body 101 has rounded corners 107 around its perimeter.

[0037] The first slope 103 is an inclined straight plane, which helps the roller 7 to smoothly reach the first support surface 104 during deceleration.

[0038] The second slope 105 is an arc surface or a straight plane, which is beneficial for the limiting protrusion 2 to limit the roller 7.

[0039] The second slope 105 is connected to the second support surface 106. Both the first support surface 104 and the second support surface 106 are straight planes used to support the roller 7.

[0040] Through the design of the first slope 103, the first support surface 104, the second slope 105, and the second support surface 106, the machine door 6 can be slowed down by the first slope 103 during the closing process, then vertically pre-tightened by the first support surface 104, and then the machine door 6 can be pushed to make the roller 7 roll into the second support surface 106 along the second slope 105. The roller 7 is limited by the limiting protrusion 2 and the second slope 105, so that the machine door 6 is always in the closed state when the injection molding machine is working.

[0041] When the machine door 6 drives the roller 7 to move along the guide rail to between the limiting plate 1 and the limiting protrusion 2, the limiting plate 1 and the limiting protrusion 2 limit the roller 7. Through the design of the above structure, when the machine door 6 is closed, the roller 7 can be limited between the limiting plate 1 and the limiting protrusion 2, increasing the resistance of the roller 7 rolling back. Even if the injection molding machine vibrates during operation, the machine door 6 can be kept closed.

[0042] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to achieve essentially the same technical effect are all covered within the protection scope of this utility model.

Claims

1. A machine door stop device, said stop device being connected to a guide rail, said guide rail being used to support a roller on a machine door, characterized in that: The limiting device includes at least one limiting plate and at least one limiting protrusion. Both the limiting plate and the limiting protrusion are connected to the guide rail. When the machine door drives the roller to move along the guide rail to between the limiting plate and the limiting protrusion, the limiting plate and the limiting protrusion limit the roller.

2. A machine door check device according to claim 1, characterized in that: The limiting plate abuts against the outer edge of the roller, and the limiting protrusion abuts against the outer circumferential recess of the roller.

3. A machine door check device according to claim 1, wherein: The limiting plate includes a plate body, and one side of the plate body is provided with a first slope, a first support surface, a second slope, and a second support surface. The first slope is connected to the second slope through the first support surface, and the second slope is connected to the second support surface.

4. A machine door check device according to claim 3, wherein: The inclination angle of the second slope is greater than that of the first slope.

5. A machine door check device according to claim 4, wherein: The first slope is an inclined straight plane.

6. A machine door check device according to claim 4, wherein: The second slope is either a circular arc or a straight plane.

7. A machine door check device according to claim 3, wherein: Both the first support surface and the second support surface are straight planes.

8. A machine door check device according to claim 3, wherein: The plate has rounded corners around its perimeter.

9. A machine door check device according to claim 1, wherein: The guide rail includes an upper guide rail and a lower guide rail arranged parallel to each other, and the machine door moves along the upper guide rail and the lower guide rail by the rollers distributed vertically.

10. A machine door check device according to claim 9, wherein: The ends of the upper guide rail and the lower guide rail are connected by a rear support.

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