Switching type limit switch structure

Abstract

The utility model relates to a switching type limit switch structure, which belongs to the technical field of injection mold switches and comprises a plate A. An oil cylinder fixing plate is fixedly mounted on the outer side of the plate A. An oil cylinder is fixedly mounted outside the oil cylinder fixing plate. An oil cylinder fixing plate is installed on the plate A, an adapter plate is installed between the oil cylinder fixing plate and the plate A, a limiting switch fixing plate is further installed on one side of the oil cylinder fixing plate, a limiting switch is installed on the outer side of the limiting switch fixing plate, two contact pins extending to the inner side of the adapter plate are further connected to the oil cylinder fixing plate in an inserted mode, and a spring is arranged between the two contact pins. A T block is fixedly installed on an output shaft of the oil cylinder, a slide seat is arranged on the outer side of the T block in a matched mode, and pressing strips are arranged on the two sides of the slide seat. The switching type limit switch structure is convenient to debug, and solves the problem that the slide and parts on the slide cannot directly touch the limit switch.

Description

Technical Field

[0001] The utility model relates to the technical field of injection mold switches, in particular to a transfer type limit switch structure. Background Art

[0002] Injection mold is an important tool for producing plastic products. It heats and injects plastic material into the mold cavity, which then cools and solidifies to form a product of the desired shape. The limit switch on the injection mold is used to control mold demoulding.

[0003] At present, conventional limit switches are generally touched by the slide or by parts locked on the slide. However, due to the structural limitations of the injection mold, the slide cannot directly touch the limit switch, and the parts locked on the slide cannot touch the limit switch either. As a result, the slide and the parts on the slide cannot directly touch the limit switch, making debugging inconvenient.

[0004] Based on this, a transfer limit switch structure is proposed to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the utility model provides a transfer limit switch structure, which has the advantages of easy touch switch, etc., and solves the problem that the slide and the parts on the slide cannot directly touch the limit switch, making debugging inconvenient.

[0006] To achieve the above object, the present invention provides the following technical solution: a transfer type limit switch structure, comprising an A plate, an oil cylinder fixing plate fixedly mounted on the outer side of the A plate, and an oil cylinder fixedly mounted on the outer side of the oil cylinder fixing plate;

[0007] An adapter plate is installed between the oil cylinder fixing plate and the A plate, a limit switch fixing plate is also installed on one side of the oil cylinder fixing plate, a limit switch is installed on the outer side of the limit switch fixing plate, and two contact pins extending to the inner side of the adapter plate are plugged into the oil cylinder fixing plate, and a spring is provided between the two contact pins;

[0008] A T-block is fixedly mounted on the output shaft of the oil cylinder, a slider seat is fitted on the outer side of the T-block, and pressure strips are provided on both sides of the slider seat.

[0009] Furthermore, a stylus hole and a spring hole are respectively provided on the oil cylinder fixing plate. There are two stylus holes, and the spring hole is located between the two stylus holes.

[0010] Furthermore, the contact pin passes through the inner side of the contact pin hole.

[0011] Furthermore, the spring is located inside the spring hole, and one end of the spring extends to the inside of the adapter plate.

[0012] Furthermore, a slider seat contact surface is provided on one side of the adapter plate close to the slider seat, and an adapter plate contact surface is provided on one side of the slider seat close to the adapter plate, and the slider seat contact surface and the adapter plate contact surface correspond to each other.

[0013] Furthermore, the limit switch fixing plate is provided with a U-shaped groove, and the number of the U-shaped grooves is two.

[0014] Furthermore, a mounting assembly is provided between the A plate and the oil cylinder fixing plate, and the mounting assembly includes a mounting block, an adjusting spring, a positioning block and a shifting block.

[0015] Furthermore, the mounting block is fixedly connected to the oil cylinder fixing plate, and the mounting block is inserted into the inner side of the A plate, the adjusting spring is arranged inside the A plate, one end of the adjusting spring is fixedly connected to the inside of the A plate, and the other end of the adjusting spring is fixedly connected to the positioning block, and the positioning block extends to the inner side of the mounting block away from one end of the adjusting spring, and the shift block is fixedly connected to the outer wall of the positioning block, and the shift block extends to the outer side of the A plate.

[0016] Furthermore, the number of the mounting components is set to two groups, and the two groups of mounting components are respectively located on both sides of the cylinder fixing plate.

[0017] Furthermore, a fixing screw is threadedly connected to the A plate at a position close to the mounting assembly, and the fixing screw passes through the inner side of the positioning block.

[0018] Compared with the prior art, the present invention provides a transfer type limit switch structure with the following beneficial effects:

[0019] 1. The transfer limit switch structure uses the oil cylinder to drive the T block to move in the direction of the limit switch, and the T block drives the slider seat to move. When the slider seat moves and contacts the adapter plate, the slider seat continues to move, thereby compressing the spring to make the adapter plate move in the direction of the limit switch, and the stylus will move with the adapter plate. When it reaches the limited position, the stylus contacts the limit switch to achieve the limit purpose. When the adapter plate is reset, the oil cylinder moves in the opposite direction of the limit switch and leaves the limit switch, driving the slider seat to move together. After the slider seat leaves the adapter plate, the adapter plate moves in the direction away from the limit switch under the action of the spring force and leaves the limit switch. When the stylus head contacts the oil cylinder fixing plate, the adapter plate is limited and stops moving, which is convenient for debugging and solves the problem that the slider and the parts on the slider cannot directly touch the limit switch.

[0020] 2. The transfer limit switch structure drives the positioning block to move by pushing the dial block, so that the positioning block squeezes the adjustment spring and separates the positioning block from the mounting block, so that the mounting block can be separated from the A plate, thereby separating the oil cylinder fixing plate from the A plate, so as to facilitate the inspection and maintenance of the components on the oil cylinder fixing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the utility model in the reset state;

[0022] Figure 2 This is a side view of the structure of the utility model in the reset state;

[0023] Figure 3 This is a side view of the structure of the utility model in contact state;

[0024] Figure 4 This is a structural diagram of the oil cylinder fixing plate of the utility model;

[0025] Figure 5 This is a structural diagram of the sliding seat of the utility model;

[0026] Figure 6 This is a schematic structural diagram of the adapter plate of the utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the limit switch of the utility model;

[0028] Figure 8 This is a schematic structural diagram of the stylus of the utility model;

[0029] Figure 9 This is a structural diagram of the installation assembly of the utility model.

[0030] In the figure: 1. Plate A; 2. Cylinder fixing plate; 21. Stylus hole; 22. Spring hole; 3. Cylinder; 4. Limit switch; 5. Stylus; 6. Limit switch fixing plate; 61. U-shaped groove; 7. Spring; 8. Adapter plate; 81. Slider seat contact surface; 9. Pressure strip; 10. Slider seat; 101. Adapter plate contact surface; 11. T-block; 12. Mounting block; 13. Adjusting spring; 14. Positioning block; 15. Shift block; 16. Fixing screw. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example 1:

[0033] See also Figures 1 to 8 A transfer type limit switch structure in this embodiment includes an A plate 1, and a cylinder fixing plate 2 is fixedly installed on the outer side of the A plate 1.

[0034] In this embodiment, an adapter plate 8 is installed between the cylinder fixing plate 2 and the A plate 1. A limit switch fixing plate 6 is also installed on one side of the cylinder fixing plate 2. A limit switch 4 is installed on the outer side of the limit switch fixing plate 6. Two contact pins 5 extending to the inner side of the adapter plate 8 are also inserted into the cylinder fixing plate 2, and a spring 7 is provided between the two contact pins 5.

[0035] It should be noted that, among the two contact pins 5, the contact of one of the contact pins 5 corresponds to the limit switch 4. The reason for setting two contact pins 5 is to ensure that the adapter plate 8 can be evenly stressed, so that the adapter plate 8 can slide easily. The end of the contact pin 5 close to the adapter plate 8 becomes narrower. When the adapter plate 8 moves toward one side of the contact pin 5, it can push the contact pin 5 to move synchronously and squeeze the spring 7 at the same time. Subsequently, the spring 7 can elastically reset the adapter plate 8.

[0036] Among them, the cylinder fixing plate 2 is respectively provided with a stylus hole 21 and a spring hole 22. There are two stylus holes 21, and the spring hole 22 is located between the two stylus holes 21. The stylus 5 passes through the inner side of the stylus hole 21, and the stylus 5 is clearance-matched with the inner side of the stylus hole 21. The spring 7 is located on the inner side of the spring hole 22, and one end of the spring 7 extends to the inner side of the adapter plate 8.

[0037] It should be added that a U-shaped groove 61 is provided on the limit switch fixing plate 6, and there are two U-shaped grooves 61. The two U-shaped grooves 61 are used to facilitate adjustment of the installation position of the limit switch 4. The limit switch 4 is connected to the limit switch fixing plate 6 through bolts. The installation position of the limit switch 4 on the limit switch fixing plate 6 is achieved by passing the bolts through different U-shaped grooves 61, which improves the flexibility of installation and facilitates use.

[0038] Example 2:

[0039] See also Figures 1 to 8 On the basis of embodiment 1, the oil cylinder 3 is fixedly installed on the outside of the oil cylinder fixing plate 2, and a T-block 11 is fixedly installed on the output shaft of the oil cylinder 3. The outer side of the T-block 11 is matched with a slider seat 10, and pressure strips 9 are provided on both sides of the slider seat 10. A slider seat contact surface 81 is provided on the side of the adapter plate 8 close to the slider seat 10, and an adapter plate contact surface 101 is provided on the side of the slider seat 10 close to the adapter plate 8. The slider seat contact surface 81 and the adapter plate contact surface 101 correspond to each other.

[0040] It should be noted that cylinder 3 is a telescopic hydraulic cylinder, utilizing hydraulic oil as a medium to achieve telescopic motion under the action of pressure. When telescopic operation is required, a hydraulic valve transmits pressure to cylinder 3, causing its piston to generate linear motion, thereby achieving telescopic movement. To stop telescopic movement, the hydraulic valve closes, stopping the flow of hydraulic oil and stopping cylinder 3's movement.

[0041] The drive of the oil cylinder 3 can drive the T block 11 to move, and drive the slider 10 to move, making it easier to adjust the position of the slider 10. It can be understood that the oil cylinder 3 drives the T block 11 to move toward the limit switch 4, and the T block 11 drives the slider 10 to move. When the slider 10 moves and contacts the adapter plate 8, the slider 10 continues to move, thereby compressing the spring 7 to move the adapter plate 8 toward the limit switch 4. The stylus 5 will move along with the adapter plate 8. When it reaches the limited position, it is convenient for the stylus 5 to contact the limit switch 4. At the same time, when the adapter plate 8 is reset, the oil cylinder 3 moves in the opposite direction toward the limit switch 4 and away from the limit switch 4, driving the slider 10 to move together. After the slider 10 leaves the adapter plate 8, the adapter plate 8 moves away from the limit switch 4 under the elastic force of the spring 7. When the stylus head 5 contacts the oil cylinder fixing plate 2, the adapter plate 8 is limited and stops moving.

[0042] Example 3:

[0043] See also Figure 9 Based on the first embodiment, a mounting assembly is further provided between the A plate 1 and the oil cylinder fixing plate 2. The mounting assembly includes a mounting block 12, an adjusting spring 13, a positioning block 14, and a shifting block 15. The mounting block 12 is fixedly connected to the oil cylinder fixing plate 2 and inserted into the inner side of the A plate 1. The adjusting spring 13 is disposed within the interior of the A plate 1. One end of the adjusting spring 13 is fixedly connected to the interior of the A plate 1, and the other end of the adjusting spring 13 is fixedly connected to the positioning block 14. The positioning block 14 extends to the inner side of the mounting block 12 away from the end of the adjusting spring 13. The shifting block 15 is fixedly connected to the outer wall of the positioning block 14 and extends to the outer side of the A plate 1.

[0044] Among them, a fixing screw 16 is threadedly connected at the position of the A plate 1 near the mounting assembly, and the fixing screw 16 passes through the inner side of the positioning block 14. The fixing screw 16 is used to ensure the stable stacking of the positioning block 14 and the mounting block 12, thereby ensuring the installation stability of the cylinder fixing plate 2.

[0045] By removing the fixing screw 16 and pushing the shift block 15 to move the positioning block 14, the positioning block 14 squeezes the adjusting spring 13, and at the same time the positioning block 14 is separated from the mounting block 12, so that the mounting block 12 can be separated from the A plate 1, thereby separating the cylinder fixing plate 2 from the A plate 1, realizing disassembly and facilitating inspection and maintenance.

[0046] It should be noted that the number of mounting components is set to two groups, and the two groups of mounting components are respectively located on both sides of the oil cylinder fixing plate 2. The provided mounting components facilitate rapid installation and removal of the oil cylinder fixing plate 2 and facilitate overhaul and maintenance.

[0047] The working principle of the above embodiment is:

[0048] When the utility model is in use, the oil cylinder 3 drives the T block 11 to move toward the limit switch 4, and the T block 11 drives the slider seat 10 to move. When the slider seat 10 moves and contacts the adapter plate 8, the slider seat 10 continues to move, thereby compressing the spring 7 to make the adapter plate 8 move toward the limit switch 4. The stylus 5 will move together with the adapter plate 8. When it reaches the limited position, the stylus 5 contacts the limit switch 4, achieving the limit purpose.

[0049] When the adapter plate 8 is reset, the oil cylinder 3 moves in the opposite direction toward the limit switch 4 and leaves the limit switch 4, driving the slider seat 10 to move together. After the slider seat 10 leaves the adapter plate 8, the adapter plate 8 moves away from the limit switch 4 under the elastic force of the spring 7 and leaves the limit switch 4. When the stylus head 5 contacts the oil cylinder fixing plate 2, the adapter plate 8 is limited and stops moving.

[0050] In addition, by pushing the shift block 15, the positioning block 14 is driven to move, so that the positioning block 14 squeezes the adjusting spring 13, and at the same time the positioning block 14 is separated from the mounting block 12, so that the mounting block 12 can be separated from the A plate 1, thereby separating the cylinder fixing plate 2 from the A plate 1, so as to facilitate the inspection and maintenance of the components on the cylinder fixing plate 2.

[0051] The installation method, connection method or setting method disclosed in this embodiment are all common mechanical methods, and can be implemented as long as they can achieve their beneficial effects. In addition, the electrical components appearing in the text are all electrically connected to the main controller and the power supply. The main controller is a conventional known device, and the existing power connection technology is disclosed. Therefore, the specific structural composition and working principle of the main controller will not be described in detail in this text.

[0052] It should be noted that in this article, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on this application.

[0053] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0054] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transfer type limit switch structure, comprising a plate A (1), characterized in that: An oil cylinder fixing plate (2) is fixedly mounted on the outer side of the A plate (1), and an oil cylinder (3) is fixedly mounted on the outer side of the oil cylinder fixing plate (2); An adapter plate (8) is installed between the oil cylinder fixing plate (2) and the A plate (1), a limit switch fixing plate (6) is also installed on one side of the oil cylinder fixing plate (2), a limit switch (4) is installed on the outer side of the limit switch fixing plate (6), and two contact pins (5) extending to the inner side of the adapter plate (8) are plugged into the oil cylinder fixing plate (2), and a spring (7) is provided between the two contact pins (5); A T-block (11) is fixedly mounted on the output shaft of the oil cylinder (3), a sliding seat (10) is matched on the outer side of the T-block (11), and pressure strips (9) are provided on both sides of the sliding seat (10).

2. The transfer type limit switch structure according to claim 1, characterized in that: The oil cylinder fixing plate (2) is respectively provided with a stylus hole (21) and a spring hole (22). There are two stylus holes (21), and the spring hole (22) is located between the two stylus holes (21).

3. The transfer type limit switch structure according to claim 2, characterized in that: The contact pin (5) passes through the inner side of the contact pin hole (21).

4. The transfer type limit switch structure according to claim 2, characterized in that: The spring (7) is located inside the spring hole (22), and one end of the spring (7) extends to the inside of the adapter plate (8).

5. The transfer type limit switch structure according to claim 1, characterized in that: A slider seat contact surface (81) is provided on one side of the adapter plate (8) close to the slider seat (10), and an adapter plate contact surface (101) is provided on one side of the slider seat (10) close to the adapter plate (8). The slider seat contact surface (81) and the adapter plate contact surface (101) correspond to each other.

6. The transfer type limit switch structure according to claim 1, characterized in that: The limit switch fixing plate (6) is provided with U-shaped grooves (61), and the number of the U-shaped grooves (61) is two.

7. The transfer type limit switch structure according to claim 1, characterized in that: A mounting assembly is also provided between the A plate (1) and the oil cylinder fixing plate (2), and the mounting assembly comprises a mounting block (12), an adjusting spring (13), a positioning block (14) and a shifting block (15).

8. The transfer type limit switch structure according to claim 7, characterized in that: The mounting block (12) is fixedly connected to the oil cylinder fixing plate (2), and the mounting block (12) is inserted into the inner side of the A plate (1). The adjusting spring (13) is arranged inside the A plate (1). One end of the adjusting spring (13) is fixedly connected to the inside of the A plate (1). The other end of the adjusting spring (13) is fixedly connected to the positioning block (14). The positioning block (14) extends away from one end of the adjusting spring (13) to the inner side of the mounting block (12). The shifting block (15) is fixedly connected to the outer wall of the positioning block (14). The shifting block (15) extends to the outer side of the A plate (1).

9. The transfer type limit switch structure according to claim 7, characterized in that: The number of the mounting components is set to two groups, and the two groups of mounting components are respectively located on both sides of the oil cylinder fixing plate (2).

10. The transfer type limit switch structure according to claim 7, characterized in that: The A plate (1) is threadedly connected with a fixing screw (16) at a position close to the mounting assembly, and the fixing screw (16) passes through the inner side of the positioning block (14).

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