A narrow space decapping mold and method

Abstract

This invention discloses a confined space undercut removal mold. The surface of the mold has a target product formed thereon. The target product has a groove, within which first and second undercuts are respectively disposed. The mold includes a lower mold, a first ejector pin, a slider, and a second ejector pin. A mold blank is disposed on the lower mold. The first ejector pin passes through the mold blank, and a first groove is provided on the side of the first ejector pin near the second undercut of the target product. The first ejector pin is used to lift the groove of the target product. The slider passes through the top of the first ejector pin and can move along the line connecting the first and second undercuts of the target product. A second groove is provided on the side of the slider near the first undercut of the target product. The second ejector pin passes through the mold blank and is used to lift the edge of the target product. This confined space undercut removal mold has a relatively simple overall structural design, enabling smooth and damage-free undercut removal in confined spaces. Demolding is achieved through a secondary lifting method, which is simple to operate and does not damage the undercut structure of the target product.

Description

Technical Field

[0001] This invention relates to the field of mold technology, and in particular to a mold and method for removing undercuts in a confined space. Background Technology

[0002] Currently, the methods used for release mechanisms in molds on the market are usually angled ejectors, rocker arms, or even forced release. When product requirements are high and the structure does not allow for forced release, only angled ejectors or rocker arms can be used. However, this undoubtedly increases the complexity of the mold. In some molds with relatively narrow structures, the strength of these structures may be very weak, which will affect the service life and stability of the mold, resulting in low production efficiency and increased mold maintenance costs.

[0003] See appendix Figure 2 As shown, attached Figure 2 The product on display is an injection-molded sheet, characterized by having a narrow groove with a first, immovable undercut formed on one side wall and a second, more flexible undercut formed near the other side wall.

[0004] Because the space in the groove on the plate is small, if a slanted ejector or a rocker arm is used in this space, it will inevitably increase the complexity of the mold and the structural strength cannot be guaranteed; if a forced ejection is used, it will inevitably cause destructive damage to the first undercut, resulting in product scrap.

[0005] Based on the above product requirements, how to design a simple and stable mold structure is an urgent problem to be solved. To this end, this application proposes a mold and method for uncoupling in a narrow space. Summary of the Invention

[0006] The purpose of this invention is to provide a mold and method for removing undercuts in confined spaces, which solves the problem of difficulty in removing undercuts in confined spaces. The mold itself has a simple structure and stable operation, which effectively improves the product yield.

[0007] The objective of this invention is achieved through the following technical solution:

[0008] A confined space undercut removal mold has a target product formed on its surface. The target product has a groove, and a first and a second undercut are respectively disposed in the groove. The mold includes:

[0009] Lower mold, on which a mold blank is provided;

[0010] The first ejector pin is inserted into the mold blank. A first mold groove is provided on the side of the first ejector pin near the second undercut of the target product. The first ejector pin is used to lift the groove of the target product.

[0011] A slider is inserted through the top of the first ejector pin and can move along the line connecting the first and second undercuts of the target product. A second membrane groove is provided on the side of the slider near the first undercut of the target product.

[0012] The second ejector pin is inserted into the mold blank and is used to lift the edge of the target product.

[0013] In some embodiments, the second ejector pin is a double-lifting component;

[0014] During the first lifting action, the second ejector pin works in conjunction with the first ejector pin to drive the target product to separate from the mold blank;

[0015] During the second lifting, the second ejector pin lifts the edge of the target product independently, so that the second buckle separates from the first membrane groove and the first buckle separates from the second membrane groove.

[0016] In some embodiments, under the secondary lifting action of the second ejector pin, firstly, the second undercut of the target product deforms and separates from the first membrane groove, and then the slider moves away from the first undercut of the target product to separate the second membrane groove.

[0017] In some embodiments, a groove is provided on the top of the first ejector pin;

[0018] The bottom of the slider has an inverted L-shaped structure, and the slider is slidably installed in the groove.

[0019] In the above scheme, the bottom of the slide and the slider abut against each other, and with the mold blank (i.e., the hand position) blocking, the slider is restricted in the direction of the first and second undercut line, which plays a role in preventing detachment in the left and right directions.

[0020] In some embodiments, guide grooves are provided on both sides of the slide, and the guide grooves are arc-shaped structures;

[0021] The slider has protrusions on both sides, and the protrusions slide in conjunction with the guide groove.

[0022] In the above solution, the guide design can guide the slider, improving the smoothness and accuracy of its movement. It also helps prevent the slider from slipping off in the vertical direction.

[0023] In some embodiments, a reset surface is provided in the middle of the first ejector pin, and the reset surface is obliquely disposed on the side of the slider near the second buckle;

[0024] The mold base includes a hand part, which is a dual-function component;

[0025] In the injection molding state, the hand part engages with the top of the first ejector pin to form the second undercut of the target product;

[0026] In the demolded state, the hand contactes the lowered reset surface to drive the slider to reset.

[0027] The above solution features a dual-function design for the hand, which can be used for both target product molding and slider reset. The ingenious structural design makes it particularly suitable for working conditions in confined spaces.

[0028] In some embodiments, the outer layer of the reset surface and / or the top of the hand are provided with a wear-resistant layer.

[0029] In the above solution, the wear-resistant layer can extend the service life of the mold and reduce wear, enabling the slider to accurately reset, thereby ensuring the molding yield of the target product.

[0030] In some embodiments, the angle between the reset surface and the horizontal plane is 70°-80°.

[0031] In the above scheme, if the angle between the reset surface and the horizontal plane is less than 70°, the first ejector pin will not descend to the correct position after the slider is reset; if the angle between the reset surface and the horizontal plane is greater than 80°, the fit between the reset surface and the hand is not good, that is, the slider will not reset after the first ejector pin descends to the correct position, which will affect the subsequent injection molding.

[0032] In some embodiments, the first ejector pin is a flat ejector pin, and a first lifting device is connected to the lower part of the first ejector pin;

[0033] There are at least two second ejector pins, and the second ejector pins are round ejector pins. A second lifting device is connected to the lower part of the second ejector pin.

[0034] A method for detaching a buckle in a confined space, using the aforementioned mold, includes the following steps:

[0035] Step S1: Provide the target product molded on the lower mold;

[0036] Step S2: Simultaneously lift the groove and edge of the target product using the first and second ejector pins to separate the target product from the mold blank;

[0037] Step S3: Keep the first ejector pin fixed, and the second ejector pin continues to push up the edge of the target product, causing the second undercut to deform and retract and separate from the first membrane groove. Then the slider is squeezed and moved away, separating the first undercut from the second membrane groove.

[0038] Step S4: Control the first ejector pin to descend to a certain height or the second ejector pin to rise to a certain height again, so that the target product is in the ejection state.

[0039] In some embodiments, in step S2, after the target product is separated from the mold blank, it is necessary to ensure that there is a clearance on the side of the second undercut away from the first undercut, and that the slider has a certain sliding space in the first ejector pin.

[0040] The above solution uses a secondary lifting method for demolding, which is simple to operate and will not damage the undercut structure of the target product, making it particularly suitable for working conditions in confined spaces.

[0041] In some embodiments, the confined space unhooking method further includes:

[0042] Step S5: Control the first ejector pin and the second ejector pin to descend. During this process, the slider can be reset on the mold blank with the help of the hand until the first ejector pin and the second ejector pin are completely restored to their state before demolding.

[0043] The above solution enables the transition from the demolded state to the injection molding state, facilitating the production and manufacturing of the target product.

[0044] Compared with the prior art, the beneficial effects of the present invention include at least the following:

[0045] 1. The mold has a relatively simple overall structural design, which can smoothly and without damage achieve the function of unhooking in narrow spaces.

[0046] 2. Whether in the injection molding or demolding process, the key parts used for molding or demolding have stable structures and will not slip off, thus effectively ensuring the production yield of the target product.

[0047] 3. Demolding is achieved through a secondary lifting method, which is simple to operate and will not damage the undercut structure of the target product. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the mold structure according to an embodiment of the present invention.

[0049] Figure 2 This is a structural diagram of the target product to be formed.

[0050] Figure 3 This is a schematic diagram illustrating the combination of the mold and the target product in an embodiment of the present invention.

[0051] Figure 4 This is a structural schematic diagram of one side of the first ejector pin in an embodiment of the present invention.

[0052] Figure 5 This is a schematic diagram of the structure of the other side of the first ejector pin in an embodiment of the present invention.

[0053] Figure 6 This is a vertical sectional view A of the mold according to an embodiment of the present invention.

[0054] Figure 7 This is a vertical sectional view B of the mold according to an embodiment of the present invention.

[0055] Figure 8 This is a schematic diagram showing the target product after it has been lifted and separated from the mold base.

[0056] Figure 9 This is a schematic diagram of the mold demolding process according to an embodiment of the present invention.

[0057] Figure 10 This is a schematic diagram of the mold reset process after demolding according to an embodiment of the present invention.

[0058] Figure 11 This is a schematic diagram of the structure of the first ejector pin in an embodiment of the present invention.

[0059] Figure 12 This is a schematic diagram of the interaction between the slider and the hand in an embodiment of the present invention.

[0060] In the diagram: 1. Lower mold; 11. Mold blank; 111. Hand part; 2. First ejector pin; 21. First mold groove; 22. Slide groove; 23. Guide groove; 3. Slider; 31. Second mold groove; 32. Outer protrusion; 33. Reset surface; 4. Second ejector pin; 5. Target product; 51. Groove; 52. First undercut; 53. Second undercut. Detailed Implementation

[0061] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided to make the invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0062] The terms used to express position and direction in this invention are illustrated with reference to the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of this invention.

[0063] See Figure 2 As shown, Figure 2 The diagram shows the structure of the target product 5. The target product 5 has a groove 51, and a first and a second inverted buckle 52 and 53 are respectively provided in the groove 51. In terms of design, the first inverted buckle 52 needs to be integrally formed on the left groove wall of the groove 51, and the second inverted buckle 53 extends from the bottom of the groove to the opening of the groove and is a certain distance away from the right groove wall of the groove 51.

[0064] Since traditional inclined top or swing rod methods cannot meet the requirements of the target product 5 for unhooking, this invention discloses an unhooking mold for narrow spaces, which aims to solve the problem of difficult unhooking in narrow spaces. The mold itself has a simple structure and stable operation.

[0065] See Figures 1 to 8 As shown, the mold of this application includes a lower mold 1, a first ejector pin 2, a slider 3, and a second ejector pin 4. The target product 5 is formed on the surface of the mold (see...). Figure 3 ).

[0066] like Figure 1 As shown, a mold blank 11 is provided on the lower mold 1. The mold blank 11 is determined according to the structure of the target product 5. After the lower mold 1 and the upper mold (not shown) are closed and injection molding is completed, the desired target product 5 can be obtained on the surface of the mold blank 11.

[0067] See Figure 7 As shown, the mold blank 11 includes a hand part 111. With the cooperation of the first ejector pin 2 and the upper mold, the hand part 111 can form a clearance position in the groove 51 of the target product 5, so that the second undercut 53 can be deformed and separated from the first mold groove 21.

[0068] Or as Figure 1 As shown, the first ejector pin 2 is inserted into the mold blank 11. The first ejector pin 2 can move in the direction perpendicular to the lower mold 1, thereby realizing the function of ejecting the target product 5. Specifically, the first ejector pin 2 is used to lift the groove 51 of the target product 5.

[0069] For example, a first hole is provided through the mold blank 11, and a first ejector pin 2 is installed in the first hole and slides and seals with the hole. A first lifting device (not shown) is connected below the first ejector pin 2. The first lifting device can be a linear motion mechanism such as a cylinder or hydraulic cylinder, so as to realize the function of vertical lifting or downward movement.

[0070] See Figure 5 and Figure 7 As shown, the first ejector pin 2 is a flat ejector pin, the top of which is adapted to the groove 51 of the target product 5 to form the groove 51 of the target product 5. The first ejector pin 2 is provided with a first mold groove 21 on the side near the second undercut 53 of the target product 5, so as to facilitate the forming of the second undercut 53 of the target product 5 on the mold blank 11.

[0071] like Figure 4 and Figure 5 As shown, the slider 3 passes through the top of the first ejector pin 2 and can move along the line connecting the first and second undercuts 52 and 53 of the target product 5, so as to realize the separation function of the slider 3 from the first undercut 52 during demolding and the reset function of the slider 3 after demolding.

[0072] For example, the top of the first ejector pin 2 is provided with a groove 22, and the bottom part of the groove 22 has an L-shaped structure. Correspondingly, the bottom of the slider 3 has an inverted L-shaped structure, and the slider 3 is slidably installed in the groove 22. In this sliding design, the double L-shaped structure causes the bottom of the groove 22 and the slider 3 to abut against each other. In addition, the mold base 11 (i.e., the hand 111 position) blocks the slider 3, restricting it in the direction of the line connecting the first and second undercuts 52 and 53, that is, it plays a role in preventing slippage in the left and right direction (see...). Figure 6 or Figure 7 ).

[0073] In addition, such as Figure 11 As shown, guide grooves 23 are respectively provided on both sides of the slide groove 22, and the length direction of the guide grooves 23 is consistent with the moving direction of the slider 3. Correspondingly, protrusions 32 are respectively provided on both sides of the slider 3, and the protrusions 32 slide in cooperation with the guide grooves 23 to guide the slider 3 and improve the smoothness and accuracy of the movement. In this guiding design, the cross-section of the guide groove 23 can be semi-circular, rectangular, dovetail-shaped, etc. Preferably, the cross-section of the guide groove 23 is arc-shaped, which is convenient to process and easy to assemble with the protrusions 32. In addition to the guiding function, the guide grooves 23 can also block the slider 3, that is, to prevent it from slipping in the vertical direction.

[0074] See Figure 4 and Figure 6 As shown, a second mold groove 31 is provided on the side of the slider 3 near the first undercut 52 of the target product 5, so that the first undercut 52 of the target product 5 can be formed on the mold blank 11.

[0075] like Figure 1 and Figure 8 As shown, the second ejector pin 4 is inserted into the mold blank 11. The second ejector pin 4 can also move in the direction perpendicular to the lower mold 1, thereby realizing the function of ejecting the target product 5. Specifically, the second ejector pin 4 is used to lift the right edge of the target product 5.

[0076] For example, a second hole is provided through the mold blank 11, and a second ejector pin 4 is installed in the second hole and slides and seals with the hole. There are at least two second ejector pins 4, which are spaced apart on the right edge of the target product 5 to improve the stability of the lifting. A second lifting device (not shown) is connected below the second ejector pin 4. The second lifting device can be the same linear motion mechanism as the first lifting device, so as to realize the function of vertical lifting or downward movement.

[0077] In the injection molding state, the mold can quickly form the target product 5 by relying on the first ejector pin 2 and the slider 3. In the demolding state, the mold achieves demolding from the target product 5 through two lifting operations.

[0078] Specifically, the second ejector pin 4 in the mold is a double-lifting component:

[0079] During the first lifting action, the second ejector pin 4, in conjunction with the first ejector pin 2, drives the target product 5 to separate from the mold base 11. Simply put, the first ejector pin 2 lifts the groove 51 of the target product 5, and the second ejector pin 4 lifts the right edge of the target product 5, working together to completely separate the target product 5 from the mold base 11 on the lower mold 1. Figure 8 As shown, at this point, the target product 5 has completed its separation from the mold base 11.

[0080] During the second lifting, the second ejector pin 4 independently lifts the edge of the target product 5, causing the second undercut 53 to separate from the first mold groove 21 and the first undercut 52 to separate from the second mold groove 31. Simply put, after the target product 5 detaches from the mold blank 11, a clearance is formed between the second undercut 53 and the right wall of the groove 51. During the second lifting, the first ejector pin 2 remains stationary. As the second ejector pin 4 continues to move upward, the second undercut 53 of the target product 5 is squeezed by the inclined surface of the first mold groove 21 on the first ejector pin 2, causing it to bend and deform towards the clearance and separate from the first mold groove 21. After the second undercut 53 detaches from the first mold groove 21, the target product 5 continues to move upward. During this process, the second mold groove 31 on the slider 3 is squeezed by the inclined surface of the first undercut 52 of the target product 5, driving the slider 3 to move the first undercut 52 further away, causing the first undercut 52 to detach from the second mold groove 31.

[0081] In summary, the mold of this application has a relatively simple overall structural design, which can smoothly and without damage achieve the function of unhooking in a narrow space. Moreover, the key parts of the mold used for molding or demolding (slider 3 and first ejector pin 2) are structurally stable and will not slip out, thus effectively ensuring the production yield of the target product 5.

[0082] See Figure 5 As shown, in a preferred embodiment, a reset surface 33 is provided in the middle of the first ejector pin 2. The reset surface 33 is inclinedly disposed on the side of the slider 3 near the second inverted clip 53, and the reset surface 33 is used to realize the function of resetting the slider 3. The angle between the reset surface 33 and the horizontal plane is 70°-80°. If the angle between the reset surface and the horizontal plane is less than 70°, the first ejector pin 2 may not descend to the correct position after the slider 3 is reset. If the angle between the reset surface 33 and the horizontal plane is greater than 80°, the cooperation between the reset surface 33 and the hand part 111 is poor, meaning that the slider 3 does not reset after the first ejector pin 2 descends to the correct position, affecting subsequent injection molding. Preferably, when the angle between the reset surface 33 and the horizontal plane is 75°, the cooperation between the reset surface 33 and the hand part 111 is better.

[0083] Specifically, see Figure 10 As shown, Figure 10This is a schematic diagram of the mold reset process after demolding. Because the slider 3 moves away from the left fastener of the target product 5 after demolding, to reset it and restore its injection molding function, the reset surface 33 can be engaged with the hand part 111, so that the hand part 111 abuts against the lowered reset surface 33 (see...). Figure 12 Since the reset surface 33 is an inclined plane, as the first ejector pin 2 moves down, the slider 3 can automatically move and reset under the guidance of the inclined plane.

[0084] It is worth mentioning that the hand part 111 is used as a dual-function component in this application. In the injection molding state, the hand part 111 engages with the top of the first ejector pin 2 to form the second undercut 53 of the target product 5; in the demolding state, the hand part 111 abuts against the lowered reset surface 33 to drive the slider 3 to reset. The structure is ingeniously designed and powerfully functional, especially suitable for working conditions in confined spaces.

[0085] Furthermore, a wear-resistant layer (not shown) is provided on the outer layer of the reset surface 33 and / or the top of the hand part 111. The wear-resistant layer may be a hard alloy layer, a nitride ceramic layer, or a coating containing hard alloy, carbon / nitrogen compounds, etc., in order to delay the service life of the mold and reduce wear, so that the slider 3 can be accurately reset, thereby ensuring the molding yield of the target product 5.

[0086] See Figure 9 As shown, the present invention also discloses a method for removing the buckle in a narrow space, which uses the above-mentioned mold and includes steps S1 to S4.

[0087] Step S1: Provide the target product 5, which is formed on the lower mold 1.

[0088] Step S2: The first ejector pin 2 and the second ejector pin 4 simultaneously lift the groove 51 and edge of the target product 5, so that the target product 5 is separated from the mold blank 11.

[0089] Note that in this step, after the target product 5 separates from the mold base 11, it is necessary to ensure that there is a clearance on the side of the second undercut 53 away from the first undercut 52, so that the second undercut 53 can deform and disengage. Furthermore, the slider 3 has a certain sliding space within the first ejector pin 2, so that the slider 3 can translate to disengage the first undercut 52.

[0090] Step S3: Keep the first ejector pin 2 fixed, and the second ejector pin 4 continues to lift the edge of the target product 5, causing the second buckle 53 to deform and retract, separating from the first membrane groove 21. Subsequently, the slider 3 is squeezed and moved away, separating the first buckle 52 from the second membrane groove 31.

[0091] In this step, as the second ejector pin 4 continues to move upward, the second buckle 53 of the target product 5 is squeezed by the inclined surface of the first membrane groove 21 on the first ejector pin 2, and thus bends and deforms towards the clearance position and separates from the first membrane groove 21. After the second buckle 53 disengages from the first membrane groove 21, the second membrane groove 31 on the slider 3 is squeezed by the inclined surface of the first buckle 52 of the target product 5, driving the slider 3 to move the first buckle 52 further away, causing the first buckle 52 to disengage from the second membrane groove 31.

[0092] Step S4: Control the first ejector pin 2 to descend to a certain height or the second ejector pin 4 to rise to a certain height again, so that the target product 5 is in the completed ejection state.

[0093] Furthermore, the method for detaching the buckle in a confined space also includes step S5.

[0094] In step S5, the first ejector pin 2 and the second ejector pin 4 are controlled to descend. During this period, the slider 3 can be reset on the mold blank 11 with the cooperation of the hand 111 until the first ejector pin 2 and the second ejector pin 4 are completely restored to the state before demolding, realizing the transition from the demolding state to the injection state. This cycle is repeated.

[0095] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the invention without departing from the principles and spirit of the invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. A confined space undercut mold, wherein a target product (5) is formed on its surface, the target product (5) having a groove (51) and a first and a second undercut (52, 53) respectively disposed in the groove (51), characterized in that, The mold includes: The lower mold (1) is provided with a mold blank (11). The first ejector pin (2) is inserted into the mold blank (11). The first ejector pin (2) has a first mold groove (21) on the side near the second undercut (53) of the target product (5). The first ejector pin (2) is used to lift the groove (51) of the target product (5). The slider (3) is inserted through the top of the first ejector pin (2) and can move along the line connecting the first and second undercuts (52, 53) of the target product (5). The slider (3) is provided with a second membrane groove (31) on the side of the slider (3) close to the first undercut (52) of the target product (5). The second ejector pin (4) is inserted into the mold blank (11) and is used to lift the edge of the target product (5); The top of the first ejector pin (2) is provided with a sliding groove (22), and guide grooves (23) are provided on both sides of the sliding groove (22), and the guide grooves (23) are arc-shaped structures; The bottom of the slider (3) is an inverted L-shaped structure. The slider (3) is slidably installed in the slide groove (22). The slider (3) has an outward protrusion (32) on each side. The outward protrusion (32) is slidably engaged with the guide groove (23).

2. The confined space unhooking mold according to claim 1, characterized in that, The second ejector pin (4) is a double-lifting component; During the first lifting, the second ejector pin (4) cooperates with the first ejector pin (2) to drive the target product (5) to separate from the mold blank (11); During the second lifting, the second pin (4) lifts the edge of the target product (5) independently, so that the second buckle (53) separates from the first membrane groove (21) and the first buckle (52) separates from the second membrane groove (31).

3. The confined space unhooking mold according to claim 2, characterized in that, Under the secondary lifting action of the second ejector pin (4), firstly, the second buckle (53) of the target product (5) deforms and separates from the first membrane groove (21). Subsequently, the slider (3) moves away from the first buckle (52) of the target product (5) to separate the second membrane groove (31).

4. The confined space unhooking mold according to claim 1, characterized in that, The first ejector pin (2) has a reset surface (33) in the middle, and the reset surface (33) is inclinedly disposed on the side of the slider (3) near the second buckle (53); The mold blank (11) includes a hand part (111), which is a dual-function component; In the injection molding state, the hand part (111) engages with the top of the first ejector pin (2) to form the second undercut (53) of the target product (5). In the demolded state, the hand part (111) abuts against the lowered reset surface (33) to drive the slider (3) to reset.

5. The confined space unhooking mold according to claim 4, characterized in that, The outer layer of the reset surface (33) and / or the top of the hand part (111) are provided with a wear-resistant layer.

6. The confined space unhooking mold according to claim 4, characterized in that, The angle between the reset surface (33) and the horizontal plane is 70°-80°.

7. A method for detaching a buckle in a confined space, employing the mold described in any one of claims 1-6, characterized in that, Includes the following steps: Step S1: Provide the target product (5) formed on the lower mold (1); Step S2: Simultaneously lift the groove (51) and edge of the target product (5) by the first ejector pin (2) and the second ejector pin (4) to separate the target product (5) from the mold blank (11); Step S3: Keep the first ejector pin (2) fixed, and the second ejector pin (4) continues to lift the edge of the target product (5), causing the second buckle (53) to deform and retract from the first membrane groove (21). Then the slider (3) is squeezed and moved far away, separating the first buckle (52) from the second membrane groove (31). Step S4: Control the first ejector pin (2) to descend to a certain height or the second ejector pin (4) to rise to a certain height again, so that the target product (5) is in the completed ejection state.

8. The method for detaching the buckle in a confined space according to claim 7, characterized in that, Also includes: Step S5: Control the first ejector pin (2) and the second ejector pin (4) to descend. During this period, the slider (3) can be reset on the mold blank (11) with the cooperation of the hand (111) until the first ejector pin (2) and the second ejector pin (4) are completely restored to the state before demolding.

Images