Structure for preventing mold frame ejected by inclined oil cylinder of elastic plate mold from retreating

Abstract

The invention discloses a structure for preventing a mold frame ejected by an inclined oil cylinder of an elastic plate mold from retreating, which is arranged on the elastic plate mold and is used for preventing the mold frame from retreating after the mold is opened. The elastic plate mold comprises a bottom plate and a top plate, wherein a sliding rail extending towards the rear mold frame is arranged on the bottom plate; the rear mold frame is in sliding connection with the sliding rails; an oil cylinder is also obliquely arranged on the rear mold frame; an ejector plate extending into the bottom plate is connected to the oil cylinder; the front mold frame is provided with a buckling machine, one end of the buckling machine extends to the position above the rear mold frame, and the buckling machine and the rear mold frame are in releasable connection; the anti-return structure comprises a pressing block fixing block, a pressing block, a spring, a reset block and a stop block; the pressing block fixing block is arranged on the rear mold frame, and the pressing block is arranged in the pressing block fixing block in a compressible mode through a spring. One end of the reset block is connected to the front mold frame, and the other end of the reset block extends above the pressing block and is used for compressing the pressing block; a slot is formed in the end part of the reset block; one end of the stop block is connected to the bottom plate, and the other end of the stop block extends to the position above the pressing block and is inserted into the inserting groove.

Description

Technical Field

[0001] The invention relates to the technical field of moulds, and in particular to a structure for preventing a spring plate mould from being ejected from a mould frame by an oblique oil cylinder and then retreating. Background Art

[0002] When the spring plate mold is opened, the rear mold frame and the front mold frame are generally required to move together for a certain distance before the rear mold frame and the front mold frame can be opened. Since the rear mold frame moves together with the front mold frame for a certain distance, the rear mold frame and the bottom plate of the rear mold are separated. At this time, when the oblique cylinder on the spring plate mold is used for ejection, the rear mold frame will be at risk of retreating to the bottom plate. In this case, it is usually necessary to set a spring between the rear mold frame and the fixed bottom plate of the rear mold to support the rear mold frame and prevent it from retreating.

[0003] However, placing a spring between the rear mold frame and the rear mold bottom plate makes it inconvenient for the spring fitter to install it. In addition, it is difficult to disassemble and assemble the mold when the spring has a problem and needs to be replaced. The main problem is still the mold. If it is pushed out obliquely by a cylinder, the force between the cylinder and the spring is difficult to calculate. When the cylinder force is too large and exceeds the compression force of the spring, the rear mold frame will still be at risk of moving backward, resulting in mold instability. Summary of the invention

[0004] The purpose of the present invention is to address the above-mentioned problems of the existing method of preventing the rear mold frame from "falling back" by placing a spring between the rear mold frame and the rear mold bottom plate, and to propose a structure for preventing the spring plate mold from falling back when the mold frame is pushed out obliquely by an oil cylinder, so as to solve the problem that the rear mold frame "falls back" when the spring plate mold is pushed out obliquely by an oil cylinder, thereby avoiding the problem of instability of the mold.

[0005] To achieve the above object, the present invention is implemented by the following technical solutions:

[0006] The present invention provides a structure for preventing the spring plate mold from being pushed out of the mold frame by the oblique oil cylinder and then retreating. The anti-retreat structure is arranged on the spring plate mold to prevent the rear mold frame in the spring plate mold from retreating and hitting the bottom plate after the mold is opened, thereby causing the mold to be unstable and affecting the product molding.

[0007] Wherein, the spring plate mold includes the following:

[0008] A bottom plate, on which a slide rail extending toward the rear mold frame is disposed;

[0009] A rear mold frame is slidably connected to the slide rail to achieve a closed or open state between the rear mold frame and the bottom plate; an oil cylinder is obliquely arranged on the rear mold frame, and an ejector plate is connected to the output end of the oil cylinder, and the ejector plate extends into the bottom plate;

[0010] and a front mold frame, on which a latch is arranged; one end of the latch is connected to the front mold frame, and the other end extends to the top of the rear mold frame and forms a releasable connection with the rear mold frame, and the latch is slidably connected to the slide rail; after the latch is latched with the rear mold frame, the front mold frame and the rear mold frame form a closed state, and after being released, they are in an open state;

[0011] Among them, the anti-backoff structure includes: a pressure block fixing block, a pressure block, a spring, a reset block and a stop block; the pressure block fixing block is arranged on the rear mold frame, and the pressure block is compressibly arranged in the pressure block fixing block by a spring (the pressure block is hidden in the pressure block fixing block in a compressed state, and protrudes from the pressure block fixing block in a non-compressed state); one end of the reset block is connected to the front mold frame, and the other end extends to the top of the pressure block for compressing the pressure block; a slot is also provided at the extended end of the reset block; one end of the stop block is connected to the bottom plate, and the other end extends to the top of the pressure block and is inserted into the slot.

[0012] Furthermore, a structure for preventing the spring plate mold from being ejected from the mold frame by the oblique oil cylinder and retreating: a first groove for accommodating the ejector plate is provided on the bottom plate.

[0013] Furthermore, a structure for preventing the spring plate mold from being ejected from the mold frame by the oblique oil cylinder and retreating: a second groove for accommodating the ejector plate is provided on the rear mold frame.

[0014] Furthermore, a structure for preventing the spring plate mold from being pushed out of the mold frame and retreating obliquely by the oil cylinder: the buckle machine is hinged on the front mold frame.

[0015] Furthermore, a structure for preventing the spring plate mold from being pushed out of the mold frame by the oblique oil cylinder and retreating: the spring plate mold also includes a disengagement structure for disengaging the latch machine from the rear mold frame; the disengagement structure includes: a connecting rod and a protrusion, the connecting rod is arranged on the latch machine, and the protrusion is arranged in the slide rail; the connecting rod is slidably overlapped in the slide rail, and the protrusion lifts the latch machine through the connecting rod to achieve disengagement.

[0016] Furthermore, a structure for preventing the spring plate mold from being pushed out of the mold frame obliquely toward the oil cylinder and retreating: the anti-retreat structure also includes: a stop block; the stop block is arranged above the pressure block fixing block and one end of the reset block extends between the stop block and the pressure block fixing block.

[0017] Further, a structure for preventing the spring plate mold from being pushed out of the mold frame by the oil cylinder obliquely: the pressure block fixing block, reset block, stop block and stop block are fixedly connected by fixing screws. Specifically, the pressure block fixing block, reset block, stop block and stop block are fixedly connected to the rear mold frame, the front mold frame, the bottom plate and the rear mold frame by fixing screws.

[0018] Furthermore, a structure for preventing the spring plate mold from being pushed out of the mold frame by the oil cylinder obliquely: the pressure block and / or the reset block are provided with an inclined surface to realize the compression of the pressure block by the reset block. Specifically, when the front mold frame, the rear mold frame and the bottom plate are closed, the end of the reset block extends to the top of the pressure block fixing block. At this time, the inclined surface provided on the pressure block and / or the reset block can be used to compress the pressure block to the state inside the pressure block fixing block through the reset block, and at the same time, the stop block is inserted into the slot. At this time, the stop block is also located above the pressure block to compress the pressure block.

[0019] Furthermore, a structure for preventing the spring plate mold from being pushed out of the mold frame by the oil cylinder obliquely is provided: the pressing block and the reset block are respectively provided with inclined surfaces that cooperate with each other.

[0020] Beneficial effects of the present invention:

[0021] (1) The structure designed by the present invention to prevent the rear mold frame from retreating is not only strong and reliable, but also can effectively prevent the rear mold frame from retreating when the mold is pushed out obliquely by the oil cylinder after mold opening, thereby ensuring the stability of the mold during production and not affecting product molding.

[0022] (2) The anti-retraction structure designed by the present invention is arranged on the periphery of the spring plate mold, which is more convenient for replacement and maintenance and is also convenient for fitters to disassemble and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a schematic diagram of the structure in which the anti-retraction structure is installed on the spring plate mold in the present invention;

[0025] Figure 2 It is an exploded schematic diagram of the anti-retraction structure in the present invention;

[0026] Figure 3 It is a front view of the anti-backward structure of the present invention in the mold closing state;

[0027] Figure 4It is a back view of the anti-backward structure of the present invention in the mold closing state;

[0028] Figure 5 It is a cross-sectional view of the anti-backward structure of the present invention in the mold closing state.

[0029] Markings in the figure: 1-anti-retraction structure, 11-pressing block fixing block, 12-pressing block, 13-spring, 14-reset block, 15-stop block, 16-stop block, 17-fixing screw, 18-inclined surface;

[0030] 2-spring plate mold, 21-bottom plate, 22-rear mold frame, 23-front mold frame, 24-slide rail, 25-cylinder, 26-throw pin plate, 27-buckle, 28-connecting rod, 29-protrusion, 141-slot, 211-first groove, 221-second groove. 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 described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", etc., indicating the position or positional relationship, are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. Moreover, the terms "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.

[0033] Example 1

[0034] like Figures 1 to 5As shown, this embodiment 1 provides a structure for preventing the spring plate mold from being pushed out of the mold frame by the oblique oil cylinder and then retreating. The anti-retreat structure 1 is arranged on the spring plate mold 2 to prevent the rear mold frame 22 in the spring plate mold 2 from retreating and hitting the bottom plate 21 after the mold is opened, thereby causing the mold to be unstable and affecting the mold punching (i.e. affecting the product molding);

[0035] Wherein, the spring plate mold 2 includes the following:

[0036] The bottom plate 21 is provided with a slide rail 24 extending toward the rear mold frame 22 and is also provided with a first groove 211;

[0037] The rear mold frame 22 is slidably connected with the slide rail 24 to achieve a closed or open state between the rear mold frame 22 and the bottom plate 21; the rear mold frame 22 is also obliquely provided with a cylinder 25, and the output end of the cylinder 25 is connected to an ejector plate 26, and the rear mold frame 22 is also provided with a second groove 221 for accommodating the ejector plate 26; the ejector plate 26 extends into the bottom plate 21 and is located in the first groove 211;

[0038] and a front mold frame 23, on which a latch 27 is arranged; one end of the latch 27 is hinged to the front mold frame 23, and the other end extends to the top of the rear mold frame 22 and forms a releasable connection with the rear mold frame 22, and the latch 27 is slidably connected to the slide rail 24; after the latch 27 is latched with the rear mold frame 22, the front mold frame 21 and the rear mold frame 22 are in a closed state, and after being released, the front mold frame 21 and the rear mold frame 22 are in an open state;

[0039] Specifically, the release of the locking machine 27 from the rear mold frame 22 is achieved through a "release structure", which includes: a connecting rod 28 provided on the locking machine 27 and a protrusion 29 provided in the slide rail 24; in the mold closing state, the connecting rod 28 is slidably overlapped in the slide rail 24; the protrusion 29 pushes up the locking machine 27 through the connecting rod 28 to achieve release;

[0040] The anti-retraction structure 1 includes: a pressure block fixing block 11, a pressure block 12, a spring 13, a reset block 14, a stop block 15, a stop block 16, a fixing screw 17 and a slope 18;

[0041] The pressing block fixing block 11 is fixedly arranged on the rear mold frame 22 by means of fixing screws 17, and the pressing block 12 is compressibly arranged in the pressing block fixing block 11 by means of a spring 13 (in a compressed state: the pressing block 12 is compressed and retracted into the interior of the pressing block fixing block 11; in a non-compressed state: under the elastic force of the spring 13, a part of the pressing block 12 protrudes from the surface of the pressing block fixing block 11);

[0042] One end of the reset block 14 is fixedly connected to the front mold frame 23 by a fixing screw 17, and the other end extends to the top of the pressing block 12 to compress the pressing block 12 (specifically, an inclined surface 18 can be provided on the pressing block 12 and the reset block 14, respectively, and after the two are in contact, the reset block 14 can compress the pressing block 12 through the guiding effect of the inclined surface 18); the extended end of the reset block 14 is also provided with a slot 141;

[0043] One end of the stop block 15 is fixedly connected to the bottom plate 21 by a fixing screw 17, and the other end extends to the top of the pressing block 12 and can be inserted into the slot 141 in the mold closing state;

[0044] The stopper 16 is fixedly disposed above the pressure block fixing block 11 by means of a fixing screw 17 , and one end of the reset block 14 can extend between the stopper 16 and the pressure block fixing block 11 in the mold closing state.

[0045] Specifically, the anti-retraction structure 1 of the above-mentioned embodiment 1 is designed on the periphery of the spring plate mold 2, which is convenient to replace when there is a problem with the structure, and it is also more convenient for fitters to disassemble and assemble when it is arranged on the periphery. The present invention solves the problem that the rear mold frame retracts when the mold is pushed out obliquely by the oil cylinder, thereby ensuring the stability of the mold during the molding process and avoiding affecting the product molding.

[0046] Mould opening and closing process:

[0047] When the spring plate mold 2 is opened, due to the action of the buckle machine 27 on the front mold frame 23, the rear mold frame 22 and the ejector plate 26 will move a distance together with the front mold frame 23 and then disengage, completing the mold opening action (specifically, when the rear mold frame 22 and the front mold frame 23 move together for a distance, the connecting rod 28 provided on the buckle machine 27 will slide to the position of the protrusion 29. At this time, after the front mold frame 23 continues to drive the buckle machine 27 to move, the connecting rod 28 is lifted by the protrusion 29, so that the buckle machine 27 and the rear mold frame 22 are disengaged, and the rear mold frame 22 is restricted by the slide rail 24 and no longer moves, while the front mold frame 23 after being disengaged continues to move and disengages from the rear mold frame 22, The mold opening is realized; at the same time, after the rear mold frame 22 moves a certain distance together with the front mold frame 23, the rear mold frame 22 and the bottom plate 21 are separated. Since the rear mold frame 22 and the bottom plate 21 move relative to each other, the stop block 15 on the bottom plate 21 is no longer located above the pressing block 12, that is, the stop block 15 is separated from the pressing block 12); after the front mold frame 23 and the rear mold frame 22 are separated, the reset block 14 is fixed on the front mold frame 23, so it will continue to move with the front mold frame 23. Due to the movement of the reset block 14, the pressing block 12 originally pressed by the reset block 14 is affected by the elastic force of the spring 13 and extends out of the surface of the pressing block fixing block 11 again;

[0048] After the spring plate mold 2 completes the above-mentioned mold opening action, the cylinder rod on the oil cylinder 25 needs to be reset to drive the ejector plate 26 to complete the ejection action of the molded product. At this time, the mold frame 22 will retreat (retreat) after the oil cylinder 25 exerts force, but because a section of the pressure block 12 extends out of the surface of the pressure block fixing block 11, it can be blocked by the stop block 15 on the bottom plate 21, so that the rear mold frame 22 cannot move, thereby preventing the rear mold frame 22 from retreating; after the ejector plate 26 ejects the molded product, the robot takes the part. After taking the part, the ejector plate 26 is pushed back to the state where it has not been ejected at the beginning by the thrust of the oil cylinder 25, and the whole ejection process is completed;

[0049] After the ejector plate 26 returns to its position, the front mold frame 23 begins to move toward the position of the rear mold frame 22. At this time, the reset block 14 on the front mold frame 23 will compress the pressing block 12 extending out of the surface of the pressing block fixing block 11 back into the inside of the pressing block fixing block 11 as the front mold frame 23 moves. Without the obstruction of the pressing block 12, the stop block 15 on the bottom plate 21 also loses the function of preventing the rear mold frame 22 from retreating. Finally, it will be pressed back to the mold closing state as the front mold frame 23 moves, and the opening and closing movement process of the entire mold is also completed.

[0050] The structure for preventing the rear mold frame 22 from retreating designed in the embodiment 1 of the present invention effectively solves the retreat problem of the rear mold frame 22, making the mold 2 more stable. The structure needs to calculate the retreat stroke to avoid the risk of mold failure. At the same time, the size of each part in the anti-retreat structure 1 needs to be well designed, and the part material needs to be well selected to prevent the part from breaking during the mold hitting process. In addition, the positioning of each part in the anti-retreat structure 1 of the present invention needs to be well designed to prevent the structure from failing to prevent the rear mold frame 22 from retreating.

[0051] The above are preferred embodiments of the present invention and are only used to explain the present invention, not to limit the present invention. Any obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A structure for preventing the spring plate mold from being pushed out of the mold frame by the oblique oil cylinder and retreating, characterized in that: The anti-retraction structure (1) is arranged on the spring plate mold (2) to prevent the rear mold frame (22) in the spring plate mold (2) from retracting and colliding with the bottom plate (21) after the mold is opened. Wherein, the spring plate mold (2) comprises the following: A bottom plate (21) on which a slide rail (24) extending toward the rear mold frame (22) is disposed; a rear mold frame (22) which is slidably connected to the slide rail (24) to achieve a closed or open state with the bottom plate (21); an oil cylinder (25) is obliquely arranged on the rear mold frame (22), and an ejector plate (26) is connected to the output end of the oil cylinder (25), and the ejector plate (26) extends into the bottom plate (21); and a front mold frame (23) on which a buckle machine (27) is arranged; One end of the latch (27) is connected to the front mold frame (23), and the other end extends to the top of the rear mold frame (22) and forms a releasable connection with the rear mold frame (22); after the latch (27) is releasably connected to the rear mold frame (22), the front mold frame (21) and the rear mold frame (22) are in a closed state, and after being releasably connected, they are in an open state; The anti-retraction structure (1) comprises: a pressure block fixing block (11), a pressure block (12), a spring (13), a reset block (14) and a stop block (15); The pressing block fixing block (11) is arranged on the rear mold frame (22), and the pressing block (12) is compressibly arranged in the pressing block fixing block (11) via a spring (13); One end of the reset block (14) is connected to the front mold frame (23), and the other end extends to the top of the pressing block (12) to compress the pressing block (12); the extended end of the reset block (14) is also provided with a slot (141); One end of the stop block (15) is connected to the bottom plate (21), and the other end extends to the top of the pressing block (12) and is inserted into the slot (141).

2. A structure for preventing the spring plate mold from being pushed out of the mold frame by the oblique oil cylinder and retreating according to claim 1, characterized in that: The bottom plate (21) is provided with a first groove (211) for accommodating the ejector plate (26).

3. The structure for preventing the spring plate mold from being pushed out of the mold frame by the oblique oil cylinder and retreating according to claim 1, characterized in that: The rear mold frame (22) is provided with a second groove (221) for accommodating the ejector plate (26).

4. The structure for preventing the spring plate mold from being pushed out of the mold frame by the oblique oil cylinder and retreating according to claim 1, characterized in that: The buckle machine (27) is hinged on the front mold frame (23).

5. A structure for preventing the spring plate mold from being pushed out of the mold frame by the oblique oil cylinder and retreating according to claim 1 or 4, characterized in that: The spring plate mold (2) further comprises a disengagement structure for disengaging the latching machine (27) from the rear mold frame (22); The tripping structure comprises: a connecting rod (28) and a protrusion (29), wherein the connecting rod (28) is arranged on the tripping machine (27), and the protrusion (29) is arranged in the slide rail (24); The connecting rod (28) is slidably overlapped in the slide rail (24), and the protrusion (29) lifts up the latching machine (27) through the connecting rod (28) to achieve release.

6. The structure for preventing the spring plate mold from being pushed out of the mold frame by the oblique oil cylinder and retreating according to claim 1, characterized in that: The anti-retraction structure (1) further comprises: a stopper (16); The stopper (16) is arranged above the pressing block fixing block (11), and one end of the reset block (14) extends between the stopper (16) and the pressing block fixing block (11).

7. A structure for preventing the spring plate mold from being pushed out of the mold frame by the oblique oil cylinder and retreating according to claim 1 or 6, characterized in that: The pressing block fixing block (11), the reset block (14), the stop block (15) and the stop block (16) are fixedly connected by fixing screws (17) respectively.

8. The structure for preventing the spring plate mold from being pushed out of the mold frame by the oblique oil cylinder and retreating according to claim 1, characterized in that: The pressing block (12) and / or the resetting block (14) are provided with an inclined surface (18) for realizing compression of the pressing block (12) by the resetting block (14).

9. A structure for preventing the spring plate mold from being pushed out of the mold frame by the oblique oil cylinder and retreating according to claim 8, characterized in that: The pressing block (12) and the reset block (14) are respectively provided with inclined surfaces (18) that match each other.

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