In-mold nut mounting jig

Abstract

The invention provides an in-mold nut mounting jig, and relates to the field of product processing equipment, the in-mold nut mounting jig comprises a first plate, a second plate and a third plate which are arranged along the height direction and are spaced from one another, the first plate is provided with at least two first insertion rods which penetrate through the second plate and are connected with the third plate, and the first insertion rods are provided with second springs; the second spring is positioned between the first plate and the second plate; the second plate is provided with a plurality of second inserting rods, each second inserting rod penetrates through the third plate and extends outwards, and the outward extending parts of the second inserting rods are in positioning fit with the mold; the in-mold nut mounting jig further comprises a sleeve embedded in the third plate and a fixing part fixed to the second plate and entering the sleeve, the fixing part is in sliding fit with the sleeve, and in addition, the fixing part extends outwards from the sleeve. All the nuts are simultaneously fed into the die to be positioned, so that the efficiency is high, and the safety is higher.

Description

Technical Field

[0001] The invention relates to the field of product processing equipment, and in particular to an in-mold nut installation fixture. Background Art

[0002] The traditional process of embedding nuts in plastic products uses a manual pre-setting nut operation mode. The personnel need to load the nuts into the mold one by one, and then mold them by injection molding. In the above process, the personnel operation time is long. In addition, there is a risk of scalding in the high temperature environment, high labor costs, and great safety hazards. There is an urgent need for an installation fixture that can load the nuts into the mold at one time. Summary of the invention

[0003] The purpose of the present invention is to provide an in-mold nut installation fixture to solve the above technical problems.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] An in-mold nut installation jig comprises a first plate, a second plate and a third plate arranged in a height direction and spaced apart from each other, wherein the first plate has at least two first insertion rods penetrating the second plate and connecting the third plate, the first insertion rods are equipped with second springs, and the second springs are located between the first plate and the second plate;

[0006] The second plate has a plurality of second insertion rods, each of which penetrates the third plate and extends outwards, and the outwardly extending portion of the second insertion rod is positioned and matched with the mold;

[0007] It also includes a sleeve embedded in the third plate, and a fixing portion fixed at the second plate and entering the sleeve, the fixing portion slidingly cooperates with the sleeve, and in addition, the fixing portion extends outward from the sleeve, the outwardly extending portion of the sleeve is a fixing area of ​​the nut, the first plate is pressed to make the third plate move downward in the height direction relative to the second plate, and the nut set in the nut fixing area is squeezed by the sleeve, and the nut is pushed out from the fixing portion into the mold.

[0008] Preferably, the fixing portion is a first fixing portion fixed to the second plate, and the first fixing portion is a hard rod.

[0009] Preferably, the portion of the hard rod fixing nut is configured as an inverted flat-top cone.

[0010] Preferably, the fixing part is a second fixing part, which includes a rod body connected to the second plate, and a plurality of grooves arrayed around the axis of the rod body, and a side wall of the groove has an arc-shaped guide groove;

[0011] Also included is a slider that is slidably matched with the arc-shaped guide groove, and the slider can extend outward relative to the groove or retract into the groove in the sliding path;

[0012] It also includes a second spring extending from the axis of the rod body into the groove and connected to the slider, the second spring makes the initial position of the slider coincide with the midpoint of the arc-shaped guide groove, so that the slider reaches the maximum outward extension in the groove.

[0013] Preferably, the nut can move along the rod body, and the moving nut can squeeze the slider to retract the slider into the groove.

[0014] Preferably, when the nut moving along the rod body pushes the slider to flip upward, the slider will retract into the groove, so that the nut can move above the slider; after the nut is located above all the sliders, all the sliders will lift the nut.

[0015] Preferably, when the sleeve squeezes the nut located at the rod body, the slider flips downward, so that the slider retracts into the groove again, so that the nut is separated from the rod body.

[0016] Preferably, a second spring fastening portion is provided at the axial position of the rod body, and the second spring fastening portion is used to fix the second spring.

[0017] Preferably, the portion of the slider at the initial position that protrudes outward from the groove is a triangular structure in cross section, wherein two slopes of the triangular structure are used to contact the inner ring edge of the nut.

[0018] Preferably, the rod body is a two-section structure, and the combined surface of the two-section structure is located in the area where the second spring fastening portion is located.

[0019] The beneficial effects of the present invention are:

[0020] The in-mold nut installation fixture proposed by the present invention can fix multiple nuts, and after fixation, all the nuts can be sent into the mold for positioning at the same time based on a simple pressing action, which is not only efficient but also safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A structural diagram of the in-mold nut installation fixture proposed in Example 1 and an enlarged diagram of the framed area;

[0022] Figure 2 A structural diagram of the in-mold nut installation fixture proposed in Example 2;

[0023] Figure 3 for Figure 2 A schematic diagram of the structure of the second fixing part of the fixture and an enlarged view of the framed area;

[0024] Figure 4 for Figure 3 A split diagram of the second fixing portion shown;

[0025] Figure 5 It is a state diagram of the nut at various positions of the second fixing part;

[0026] Figure numerals: 1. first plate; 2. first spring; 3. first plug rod; 4. first limiting portion; 5. second plug rod; 6. second plate; 7. first fixing portion; 8. second limiting portion; 9. third plate; 10. sleeve; 11. block; 12. second fixing portion; 121. rod body; 122. groove; 123. arc guide groove; 124. slider; 125. second spring; 126. second spring fastening portion; 127. screw; 128. limiting groove. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] The specific embodiments of the present invention are described below with reference to the accompanying drawings.

[0030] Example 1

[0031] In this embodiment, a molded nut installation fixture is proposed. Figure 1 The in-mold nut installation fixture includes a second plate 6, a first plate 1 located above the second plate 6, and a third plate 9 below the second plate 6, wherein the end sides of the second plate 6 and the third plate 9 have corners extending outward. Below the first plate 1, there are two first limiting parts 4 fixed in the second plate 6, and there is a channel in the first limiting part 4, and a first plug rod 3 is inserted into the channel. One end of the first plug rod 3 is connected to the first plate 1, and the other end is connected to the third plate 9. In this way, when the first plate 1 is pulled or pressed, the third plate 9 will move synchronously with the first plate 1. It is further explained that in order to reset the first plate 1 after pressing the first plate 1, a first spring 2 is provided between the first plate 1 and the second plate 6. The first spring 2 is sleeved on the first plug rod 3, and both ends are against the first plate 1 and the first limiting part 4. Please continue Figure 1The fourth corner of the third plate 9 is fixed with a second stopper 8, which is consistent with the first stopper 4. The second stopper 8 also has a channel in which a second plug rod 5 is inserted. One end of the second plug rod 5 is connected to the corner of the second plate 6, and the other end of the second plug rod 5 is inserted into the positioning point in the mold during the use of the jig. In addition, a block 11 is provided on the outwardly extending portion of the second plug rod 5 relative to the third plate 9. The position of the block 11 can prevent the third plate 9 from moving further. Please continue to read Figure 1 The second plate 6 is also fixed with a plurality of sleeves 10, in which the first fixing portion 7 is inserted, one end of the first fixing portion 7 is fixed to the bottom of the second plate 6, and the other end of the first fixing portion 7 extends outward relative to the sleeve 10, and the outwardly extending portion is a fixing area for the nut. In the present embodiment, the first fixing portion 7 is a hard rod, and the portion of the hard rod that fixes the nut is set as an inverted flat-topped cone. It is further explained that the nut is stuck at the inverted flat-topped cone due to friction. In this way, the first plate 1 is pressed to make the third plate 9 move downward in the height direction relative to the second plate 6, and the nut set in the nut fixing area is squeezed by the sleeve 10, and the nut is pushed out from the first fixing portion 7 into the mold.

[0032] Example 2

[0033] In this embodiment, a molded nut installation fixture is proposed. Figure 2 The in-mold nut installation fixture includes a vertical motion system consisting of a first plate 1, a second plate 6 and a third plate 9. The first plate 1 is rigidly connected to the third plate 9 through two groups of symmetrically arranged first plug rods 3. The first plug rod 3 passes through the guide hole of the first limit portion 4 of the second plate 6 to ensure the synchronous displacement of the three in the Z-axis direction. The reset system adopts a first spring 2 sleeved on the outside of the first plug rod 3, and its two ends respectively abut against the bottom surface of the first plate 1 and the top surface of the first limit portion 4 to provide an automatic rebound function for the pressing action. The positioning mechanism includes four groups of second plug rods 5 arranged at the corners, the upper part of which is fixed to the second plate 6, and the lower part passes through the guide hole of the second limit portion 8 of the third plate 9. The extension section relative to the second limit portion 8 is provided with a card block 11 to form a mechanical stop, which triggers the limit protection at the end of the downward stroke of the third plate 9. The nut positioning module is composed of an array-arranged sleeve 10 and a second fixing part 12.

[0034] See also Figure 3-Figure 5 The second fixing part 12 includes a rod body 121 that penetrates into the second limiting part 8 and is connected to the second plate 6 at one end. The rod body 121 has four grooves 122 arranged around its axis. The side wall of the groove 122 has an arc guide groove 123. The arc guide groove 123 is equipped with a slider 124. The slider 124 can extend outward relative to the groove 122 or retract into the groove 122 when the arc guide groove 123 slides. Further explanation: There is a limiting groove 128 at the axis position of the rod body 121, and the second spring fastening part 126 is installed in the limiting groove 128. Figure 4As shown, the second spring fastening portion 126 has four side surfaces, and a groove is formed at the side surface, in which the second spring 125 is installed, wherein the second spring 125 is horizontally placed in the groove. In addition, the other end of the second spring 125 is connected to the slider 124. After the connection, the initial position of the slider 124 is located at the midpoint of the arc-shaped guide groove 123, and this position enables the slider 124 to reach the maximum outward extension in the groove 122.

[0035] In this embodiment, the nut can move along the rod body 121, and the moving nut can squeeze the slider 124, so that the slider 124 is retracted into the groove 122. For further explanation, please refer to Figure 5 For reference, when the nut moving along the rod body 121 pushes the slider 124 to flip upward, the slider 124 will be retracted into the groove 122 (see Figure 5 a and b) in the figure, so that the nut can move to the top of the slider 124; after the nut is above the slider 124, all the sliders 124 will lift the nut (see details for details Figure 5 When the sleeve 10 squeezes the nut, the slider 124 flips downward, so that the slider 124 retracts into the groove 122 again (see Figure 5 d and e in the figure). In this embodiment, the slider 124 at the initial position extending outward from the groove 122 is a triangular structure in cross section, and the two slopes of the triangular structure contact the inner ring edge of the nut. The above design can make the inner ring edge of the nut press each slider 124 evenly under the push of the sleeve 10, ensuring that the axis of the nut and the axis of the rod body 121 remain coincident. Finally, the nut can also Figure 5 In the state shown in middle e, based on the slider 124 being in uniform contact with the inner wall of the nut, the axis of the nut is further prevented from being offset.

[0036] See also Figure 4 The rod body 121 is a two-stage structure, and the combination surface of the two-stage structure is located in the area where the second spring fastening portion 126 is located. Figure 4 The screw 127 shown is inserted into the truncated rod body 121 and connected to the main body of the rod body 121, thereby facilitating disassembly, assembly and maintenance by personnel.

[0037] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An in-mold nut installation fixture, characterized in that: It comprises a first plate, a second plate and a third plate arranged in a height direction and spaced apart from each other, wherein the first plate has at least two first plug rods penetrating the second plate and connecting the third plate, the first plug rod is equipped with a second spring, and the second spring is located between the first plate and the second plate; The second plate has a plurality of second insertion rods, each of which penetrates the third plate and extends outwards, and the outwardly extending portion of the second insertion rod is positioned and matched with the mold; It also includes a sleeve embedded in the third plate, and a fixing portion fixed at the second plate and entering the sleeve, the fixing portion slidingly cooperates with the sleeve, and in addition, the fixing portion extends outward from the sleeve, the outwardly extending portion of the sleeve is a fixing area of ​​the nut, the first plate is pressed to make the third plate move downward in the height direction relative to the second plate, and the nut set in the nut fixing area is squeezed by the sleeve, and the nut is pushed out from the fixing portion into the mold.

2. The in-mold nut installation jig according to claim 1, characterized in that: The fixing part is a first fixing part fixed to the second plate, and the first fixing part is a hard rod.

3. The in-mold nut installation jig according to claim 2, characterized in that: The part of the hard rod fixing the nut is arranged as an inverted flat-top cone.

4. The in-mold nut installation jig according to claim 1, characterized in that: The fixing part is a second fixing part, which includes a rod body connected to the second plate, and a plurality of grooves arrayed around the axis of the rod body, and a side wall of the groove has an arc-shaped guide groove; Also included is a slider that is slidably matched with the arc-shaped guide groove, and the slider can extend outward relative to the groove or retract into the groove in the sliding path; It also includes a second spring extending from the axis of the rod body into the groove and connected to the slider, the second spring makes the initial position of the slider coincide with the midpoint of the arc-shaped guide groove, so that the slider reaches the maximum outward extension in the groove.

5. The in-mold nut installation jig according to claim 4, characterized in that: The nut can move along the rod body, and the moving nut can squeeze the slider to shrink the slider into the groove.

6. The in-mold nut installation jig according to claim 5, characterized in that: When the nut moving along the rod body pushes the slider to flip upward, the slider will shrink into the groove, so that the nut can move above the slider; after the nut is located above all the sliders, all the sliders will lift the nut.

7. The in-mold nut installation jig according to claim 6, characterized in that: When the sleeve squeezes the nut located at the rod body, the slider flips downward, so that the slider retracts into the groove again, so that the nut is separated from the rod body.

8. The in-mold nut installation jig according to claim 4, characterized in that: A second spring fastening portion is provided at the axis position of the rod body, and the second spring fastening portion is used to fix the second spring.

9. The in-mold nut installation jig according to claim 4, characterized in that: The portion of the sliding block at the initial position that protrudes outward from the groove is a triangular structure in cross section, wherein two slopes of the triangular structure are used to contact the inner ring edge of the nut.

10. The in-mold nut installation jig according to claim 8, characterized in that: The rod body is a two-section structure, and the combined surface of the two-section structure is located in the area where the second spring fastening portion is located.

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