Built-in travel switch structure of elastic plate mold

Abstract

The utility model discloses a built-in travel switch structure of an elastic plate mould, which comprises a return pin, a push plate and an ejector plate, the return pin is fixed on the ejector plate, the travel switch is arranged on one side of the push plate, a mounting groove is arranged on the top surface of the push plate, and a collision plate which can be positioned in the mounting groove and is in contact with the travel switch is arranged at the end part of the return pin. According to the utility model, a switch sinker bar is omitted, and the return pins and the ejector pin plate are fixed into a whole, so that the sinker plate is arranged at the end part of one return pin to replace a return pin meson, thereby playing the same role as the switch sinker bar, namely, the ejector pin plate can collide with the travel switch during resetting, and the structure is small and exquisite, the occupied space is small, and the operation is convenient. And large errors caused by too long length are avoided, and the cost is low.

Description

Technical Field

[0001] The utility model relates to an injection mold, in particular to a spring plate mold with a built-in travel switch structure. Background Art

[0002] In some injection molds, after the mold is opened, the push plate is bounced a certain distance relative to the rear template (according to the limit distance of the limit screw) by the action of spring one, and the rear template will drive the ejector plate to move together through the return pin. After the push plate pops out to the limit, the ejector plate is ejected by the ejector rod of the injection molding machine, and finally the product is completely ejected. There is spring two between the ejector plate and the push plate. After the mold opening is completed, the ejector plate is reset by spring two.

[0003] Due to the safety requirements of other structures of the mold, the ejector plate must be completely reset before the mold can be closed, otherwise it is unsafe. Because we set a travel switch on the push plate and a switch striker on the ejector plate, when the ejector plate needs to be completely reset, the touch end of the top of the switch striker will contact the travel switch, so that the travel switch transmits a signal to the injection molding machine, the ejector plate is reset, and the injection molding machine issues a mold closing command after receiving the signal from the travel switch to ensure the safety of the mold.

[0004] Previously, the switch striker A was installed on the outside of the mold (such as Figure 5 As shown in the figure, it takes up a lot of space, and the switch striker A is fixed on the ejector plate, but the travel switch is installed on the push plate, so the switch striker A is relatively long. Because the switch striker A is very long, the error of the switch striker A in installation and processing will be magnified at the touch end, resulting in unstable touch between the touch end and the travel switch. If the accuracy is improved, the cost will be too high. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a spring plate mold built-in travel switch structure.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A spring plate mold with a built-in travel switch structure comprises a return pin, a push plate, an ejector plate and a travel switch arranged on one side of the push plate, wherein the return pin is fixed on the ejector plate, and is characterized in that a mounting groove is provided on the top surface of the push plate, and a collision plate is provided on the end of the return pin which can be located in the mounting groove and touch the travel switch.

[0008] A travel groove is provided on one side of the push plate, the travel switch is located in the travel groove, a through hole is provided at the bottom of the mounting groove and communicates with the travel groove, and the collision plate is located in the mounting groove and contacts the travel switch through the through hole.

[0009] One side of the installation groove is open, and the through hole is connected with the side opening.

[0010] It also includes an adjustment seat, and the travel switch is fixed on the push plate through the adjustment seat.

[0011] The adjusting seat is provided with a long hole, the push plate is provided with a screw hole, and the adjusting screw passes through the long hole and cooperates with the screw hole.

[0012] The beneficial effects of the utility model are as follows: the utility model eliminates the switch striker, because the return pin itself and the ejector plate are fixed as one, and thus a striker plate is arranged at the end of one of the return pins to replace the return pin meson, thereby being able to play the same role as the switch striker, that is, the ejector plate can collide with the travel switch when resetting, and the utility model has a compact structure, occupies a small space, avoids large errors caused by too long a length, and has low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 This is a view of the mold structure after the front template is hidden in the utility model;

[0015] Figure 2 It is the exploded structural view of the push plate, travel switch and striker plate;

[0016] Figure 3 It is a cross-sectional structural view of one part of the spring;

[0017] Figure 4 It is a cross-sectional structural view of the spring at two locations;

[0018] Figure 5 It is a view of the old structure using the switch striker. DETAILED DESCRIPTION

[0019] The advantages and features of the present disclosure and its implementation methods will be explained by the following embodiments described with reference to the accompanying drawings. However, the present disclosure can be embodied in different forms and should not be interpreted as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure will be comprehensive and complete, and will fully convey the scope of the present disclosure to those skilled in the art. In addition, the present disclosure is limited only by the scope of the claims.

[0020] The shapes, sizes, ratios, angles and numbers disclosed in the drawings for describing the embodiments of the present disclosure are only examples, and therefore the present disclosure is not limited to the details shown. Throughout this specification, the same reference numerals refer to the same elements. In the following description, when the detailed description of the relevant known functions or configurations is determined to be unnecessary to blur the focus of the present disclosure, the detailed description will be omitted. In the case of using "including", "having" and "comprising" described in this specification, other parts may be added unless "only" is used. Unless otherwise indicated, the terms in the singular may include plural forms.

[0021] When explaining an element, although not explicitly described, the element is understood to include a range of error.

[0022] When describing a positional relationship, for example, when the positional relationship is described as "on," "above," "below," and "adjacent to," unless "immediately" or "directly" is used, one or more parts may be arranged between two other parts.

[0023] When describing a time relationship, for example, when a time sequence is described as “after,” “subsequently,” “next,” and “before,” discontinuous cases may be included unless “just” or “directly” is used.

[0024] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from other elements. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present disclosure.

[0025] As those skilled in the art can fully understand, the features of the different embodiments of the present disclosure can be coupled or combined with each other in part or in whole, and can cooperate with each other in various ways and be driven technically. The embodiments of the present disclosure can be performed independently of each other, or can be performed together in a mutually dependent relationship.

[0026] Reference Figures 1 to 4 The utility model discloses a spring plate mold built-in travel switch structure, including a return pin 1, a push plate 2 and an ejector plate 3, the return pin 1 is fixed on the ejector plate 3, and a travel switch 4 is arranged on one side of the push plate 2, the top surface of the push plate 2 is provided with a mounting groove 5, the end of the return pin 1 is provided with a striker plate 6 that can be located in the mounting groove 5 and touch the travel switch 4, the striker plate 6 replaces the return pin meson, the striker plate 6 is fixed to the end of the return pin 1 by screws, in order to touch the travel switch 4 and facilitate manufacturing, the striker plate 6 is a chamfered square plate, and the area is larger than the return pin meson.

[0027] The working principle of the above structure is briefly described. After the front mold (not shown in the figure) is opened, the push plate 2 is bounced a certain distance relative to the rear mold plate 8 under the action of the spring 7. The push plate 2 is limited in the pop-up distance by the limit screw 9. Since the return pin meson 15 and the striker 6 are fixed on the return pin 1, the return pin meson 15 is located in the countersunk hole of the push plate 2 and can be abutted against the countersunk hole, and the striker 6 is located in the mounting groove 5 of the push plate 2 and can be abutted against the mounting groove 5. Therefore, during the pop-up process of the push plate 2, the push plate 2 is The needle meson 15 abuts against the countersunk hole and the impact plate 6 abuts against the mounting groove 5, thereby driving the ejector plate 3 and all the ejectors on the ejector plate 3 to move synchronously. After the push plate 2 pops out to the limit position, the ejector rod of the injection molding machine pushes the ejector plate 3 to be ejected, and finally the product is completely ejected. At this time, the ejector plate 3 will compress the spring 2 10, and the return needle meson 15 will extend from the countersunk hole as the ejector plate 3 and the return needle 1 move; the impact plate 6 will extend from the mounting groove 5 as the ejector plate 3 and the return needle 1 move and separate from the travel switch 4. When the mold is closed, the ejector pin of the injection molding machine is separated from the ejector plate 3. At this time, the ejector plate 3 is reset under the action of the spring 2 10, so that the return needle 1 will also drive the return needle meson 15 and the impact plate 6 to reset, so that the return needle meson 15 will return to the countersunk hole, and the impact plate 6 will return to the installation groove 5. When the ejector plate 3 is completely reset, the impact plate 6 will also completely return to the installation groove 5 and touch the travel switch 4, so that the transmission signal of the travel switch 4 is sent to the injection molding machine, and the ejector plate 3 is reset. After receiving the signal of the travel switch 4, the injection molding machine issues a mold closing instruction to ensure the safety of the mold.

[0028] As shown in the figure, a travel groove 11 is provided on one side of the push plate 2, and the travel switch 4 is located in the travel groove 11. A mounting groove 5 is provided on the top surface of the push plate 2, and a through hole 12 is provided at the bottom of the mounting groove 5 to penetrate the travel groove 11. The striker 6 is located in the mounting groove 5 and touches the travel switch 4 through the through hole 12. The above structure prevents the travel switch 4 from being exposed outside the mold, saving space. One side of the mounting groove 5 is open, and the through hole 12 is connected to the side opening, and the above structure is convenient for processing and assembly.

[0029] As shown in the figure, it also includes an adjustment seat 13, which is a square plate. The travel switch 4 is fixed to the push plate 2 through the adjustment seat 13. A long hole 14 is provided on the adjustment seat 13, and a screw hole is provided on the push plate 2. The adjustment screw passes through the long hole 14 and cooperates with the screw hole. The adjustment seat 13 adjusts the height of the travel switch 4 through the long hole 14, so as to make up for the error caused by the processing accuracy or meet the needs of subsequent adjustments, thereby reducing the processing cost.

[0030] The above is a detailed introduction to a spring plate mold built-in travel switch structure provided by an embodiment of the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model; at the same time, for general technical personnel in this field, according to the idea of ​​the utility model, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A spring plate mold built-in travel switch structure, comprising a return pin, a push plate, an ejector plate and a travel switch arranged on one side of the push plate, wherein the return pin is fixed on the ejector plate, and is characterized in that: The top surface of the push plate is provided with a mounting groove, and the end of the return pin is provided with a collision plate which can be located in the mounting groove and touch the travel switch.

2. The spring plate mold built-in travel switch structure according to claim 1, characterized in that: A travel groove is provided on one side of the push plate, the travel switch is located in the travel groove, a through hole is provided at the bottom of the mounting groove and communicates with the travel groove, and the collision plate is located in the mounting groove and contacts the travel switch through the through hole.

3. The spring plate mold built-in travel switch structure according to claim 2, characterized in that: One side of the installation groove is open, and the through hole is connected with the side opening.

4. The spring plate mold built-in travel switch structure according to claim 1, characterized in that: It also includes an adjustment seat, and the travel switch is fixed on the push plate through the adjustment seat.

5. The spring plate mold built-in travel switch structure according to claim 4, characterized in that: The adjusting seat is provided with a long hole, the push plate is provided with a screw hole, and the adjusting screw passes through the long hole and cooperates with the screw hole.

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