Secondary top buckling machine for plastic mould

Abstract

The utility model belongs to the technical field of secondary ejecting and buckling machines, and particularly relates to a secondary ejecting and buckling machine for a plastic mould, which comprises a mould main body and a secondary ejecting and buckling machine body assembled in the mould main body, the mould main body consists of a base, a mould seat, a supporting plate and an ejecting plate, and the secondary ejecting and buckling machine body consists of an ejecting roller, an outer guide sleeve, an inner guide sleeve and a buckling machine limiting block. According to the secondary top buckling machine, a traditional secondary top buckling machine is optimized, so that the mechanism is more convenient, simpler and more accurate, the machining cost is reduced, the installation of the mechanism is simplified, and the service life of a mold is prolonged. In order to prevent machining errors, clearance treatment is added to the ejector rod and the ejector plate, so that it is guaranteed that the buckle machine limiting block and the ejector rod make contact first and then move, the buckle machine can be ejected out more accurately, and the situation that products are scratched due to the machining errors when the products are ejected out is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of secondary buckle machines, in particular to a secondary buckle machine for plastic moulds. Background Art

[0002] Due to the complexity of plastic mold products, in order to ensure that the product injection molding can be smoothly removed to complete production, the plastic mold will use a secondary ejection method to remove the product, so that the product can be smoothly ejected or automatically dropped, thereby reducing manual removal, shortening the product trial time and improving production efficiency.

[0003] Regarding the structure of a mold ejector buckle machine disclosed in patent CN201821202309.9, the first ejector plate and the second ejector plate can have different strokes through the cooperation of components such as a pressure block, an upper buckle, a sliding part, a driving spring and a lower buckle, thereby realizing secondary ejection of the mold. In addition, the driving spring is used as a power component, and the reliability of the driving spring is high, thereby improving the overall reliability of the utility model and enabling the upper and lower buckles to be fastened with better force. However, the current secondary ejection of the mold ejector plate is generally controlled by a spring to open the mold, which is prone to functional failure or insufficient mold opening distance, and the spring needs to be replaced; therefore, it does not meet the existing needs. In this regard, we have proposed a plastic mold secondary ejector buckle machine. Utility Model Content

[0004] The purpose of the present utility model is to provide a secondary ejector for plastic molds to solve the problems raised in the above-mentioned background technology, such as the secondary ejection of the current mold ejector plate, which is generally controlled by a spring to open the mold, and is prone to functional failure or insufficient mold opening distance, requiring the replacement of the spring.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a secondary buckle machine for plastic molds, comprising a mold body and a secondary buckle machine body assembled in the mold body, wherein the mold body is composed of a base, a mold base, a support plate and a top plate, and the secondary buckle machine body is composed of a push rod, an outer guide sleeve, an inner guide sleeve and a buckle machine limit block, the top end of the outer guide sleeve is inclined and provided with a placement groove, and the surface of the push rod is provided with a groove.

[0006] As a preferred secondary ejector for plastic molds of the present invention, the inner guide sleeve is arranged in the inner cavity of the outer guide sleeve, the ejector rod is arranged in the inner cavity of the inner guide sleeve, a through hole is opened on the surface of the inner guide sleeve, and the ejector limit block is arranged in the groove and passes through the through hole to fit the cavity wall of the outer guide sleeve.

[0007] As a preferred embodiment of the secondary ejector machine for plastic molds of the present invention, the end of the ejector rod is assembled in the ejector plate, the inner guide sleeve is assembled in the support plate, and the inner guide sleeve is connected to the outer guide sleeve through the ejector rod and the ejector limit block.

[0008] As a preferred embodiment of the secondary ejector machine for plastic molds of the present invention, a spring and a guide rod are installed inside the ejector rod, a connecting block is installed at the end of the spring, and an ejector block is installed at the end of the connecting block.

[0009] As a preferred embodiment of the secondary ejector machine for plastic molds of the present invention, the connecting block is sleeved on the surface of the guide rod, and the connecting block is elastically retracted inside the ejector rod by a spring.

[0010] As a preferred embodiment of the secondary buckle machine for plastic molds of the present invention, the top end of the outer guide sleeve is connected with a protective plate, and the bottom end of the inner guide sleeve is provided with a connecting groove adapted to the protective plate.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model can make the buckle machine limit block drive the inner guide sleeve to rise by the rise of the ejector rod, and the inner guide sleeve is connected to the support plate, thereby also driving the support plate to rise. Subsequently, when the buckle machine limit block and the top of the outer guide sleeve are on the same horizontal line, they will move outward along the inclined arc and then move out of the groove. Then, the continued rise of the ejector rod can drive the top plate to rise, thus forming a secondary buckle. This secondary buckle machine optimizes the traditional secondary buckle machine, making the mechanism more convenient and simple, more accurate, reducing processing costs, simplifying its installation, and increasing the service life of the mold. In order to prevent processing errors, the ejector rod and the top plate have added air avoidance treatment, thereby ensuring that the buckle machine limit block and the ejector rod are in contact before moving, making the buckle machine more accurate and reducing scratches on the product due to processing errors during ejection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the mold one-time lifting structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the secondary lifting structure of the mold of the present invention;

[0017] Figure 4 This is a schematic structural diagram of the secondary buckle machine of the present utility model;

[0018] Figure 5 This is a schematic diagram of the one-time use structure of the secondary buckle machine of the utility model;

[0019] Figure 6 This is a schematic diagram of the secondary use structure of the secondary buckle machine of the utility model;

[0020] Figure 7 This is a schematic diagram of the disassembled structure of the secondary buckle machine of the utility model;

[0021] Figure 8 For this utility model Figure 6 A in the figure is an enlarged structural diagram.

[0022] In the figure: 1, mold body; 101, base; 102, mold base; 103, support plate; 104, top plate;

[0023] 2. Secondary buckle machine body; 201. Ejector rod; 202. Outer guide sleeve; 203. Inner guide sleeve; 204. Buckle machine limit block; 205. Placement slot; 206. Recess; 207. Through hole;

[0024] 3. Spring; 4. Guide rod; 5. Connecting block; 6. Top block; 7. Protective plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0026] See also Figure 1-8 The utility model provides the following technical solutions: a secondary buckle machine for plastic molds, comprising a mold body 1 and a secondary buckle machine body 2 assembled in the mold body 1. The mold body 1 is composed of a base 101, a mold base 102, a support plate 103 and a top plate 104. The secondary buckle machine body 2 is composed of a push rod 201, an outer guide sleeve 202, an inner guide sleeve 203 and a buckle machine limit block 204. The top of the outer guide sleeve 202 is inclined and has a placement groove 205, and the surface of the push rod 201 is provided with a groove 206.

[0027] In the preferred embodiment: the inner guide sleeve 203 is arranged in the inner cavity of the outer guide sleeve 202, the push rod 201 is arranged in the inner cavity of the inner guide sleeve 203, a through hole 207 is opened on the surface of the inner guide sleeve 203, and the trigger limit block 204 is arranged in the groove 206 and passes through the through hole 207 to fit with the cavity wall of the outer guide sleeve 202.

[0028] In the preferred embodiment, the end of the top rod 201 is assembled in the top plate 104, the inner guide sleeve 203 is assembled in the support plate 103, and the inner guide sleeve 203 is connected to the outer guide sleeve 202 through the top rod 201 and the trigger limit block 204 to form a lifting connection.

[0029] In this embodiment, the secondary ejection machine operates as follows: First, the ejector rod 201 is connected to a lifting device, such as a pneumatic or electric cylinder. When the ejector rod 201 rises, it drives the ejection stopper 204 to move. Subsequently, the movement of the ejection stopper 204 causes the inner guide sleeve 203 to move. Since the inner guide sleeve 203 is connected to the support plate 103, the support plate 103 also rises with it, completing the mold opening operation. Next, when the ejection stopper 204 rises to the same level as the top of the outer guide sleeve 202, it moves outward along the inclined arc of the groove 206, eventually moving from the groove 206 into the placement groove 205. The ejection stopper 204 then lies between the placement groove 205 and the through hole 207, releasing its connection with the ejector rod 201. At this point, even if the ejector rod 201 continues to rise, it is no longer restricted by the ejection stopper 204 and can no longer drive the inner guide sleeve 203. On the contrary, the continuous rise of the ejector rod 201 will drive the ejector plate 104 to rise, forming a secondary mold opening with the supporting plate 103.

[0030] Furthermore, this secondary ejector optimizes traditional secondary ejectors, making the mechanism more convenient, simpler, and more precise, reducing processing costs, simplifying installation, and increasing mold life. To prevent processing errors, the ejector rod 201 and the ejector plate 104 are protected from air gaps. This ensures that the ejector stopper 204 and the ejector rod 201 first contact before moving, enabling more precise ejection and reducing scratches on the product due to processing errors.

[0031] The air avoidance process is because one end of the trigger limit block 204 is inclined, so that the trigger limit block 204 has a moving distance. Example 2

[0032] See also Figure 1-8 The interior of the top stick 201 is equipped with a spring 3 and a guide rod 4, the end of the spring 3 is equipped with a connecting block 5, and the end of the connecting block 5 is equipped with a top block 6.

[0033] In the preferred embodiment, the connecting block 5 is sleeved on the surface of the guide rod 4 , and the connecting block 5 is elastically retracted inside the top rod 201 through the spring 3 .

[0034] In the preferred embodiment, the top end of the outer guide sleeve 202 is connected to the protective plate 7 , and the bottom end of the inner guide sleeve 203 is provided with a connecting groove adapted to the protective plate 7 .

[0035] In the embodiment, in order to prevent the trigger limit block 204 from falling out from the top of the outer guide sleeve 202, we also designed a protective plate 7 to ensure the stability of the trigger limit block 204. The removal of the trigger limit block 204 is achieved through the elastic action of the spring 3. When the trigger limit block 204 is in the cavity of the outer guide sleeve 202, the spring 3 will be squeezed to contract. When the trigger limit block 204 drives the inner guide sleeve 203 to move out of the outer guide sleeve 202, the elastic force of the spring 3 will push the trigger limit block 204 outward, thereby facilitating the trigger limit block 204 to move into the placement groove 205 and the through hole 207. At the same time, the protective plate 7 can ensure that the elastic force of the spring 3 will not push the trigger limit block 204 out of the top of the outer guide sleeve 202.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A secondary buckle machine for plastic molds, comprising a mold body (1) and a secondary buckle machine body (2) assembled in the mold body (1), characterized in that: The mold body (1) is composed of a base (101), a mold base (102), a supporting plate (103) and a top plate (104); The secondary push-up machine body (2) is composed of a push rod (201), an outer guide sleeve (202), an inner guide sleeve (203) and a push-up machine limit block (204); the top end of the outer guide sleeve (202) is provided with a placement groove (205) in an inclined shape, and the surface of the push rod (201) is provided with a groove (206).

2. The plastic mold secondary buckling machine according to claim 1, characterized in that: The inner guide sleeve (203) is arranged in the inner cavity of the outer guide sleeve (202), the push rod (201) is arranged in the inner cavity of the inner guide sleeve (203), a through hole (207) is opened on the surface of the inner guide sleeve (203), and the locking block (204) is arranged in the groove (206) and passes through the through hole (207) to fit the cavity wall of the outer guide sleeve (202).

3. The plastic mold secondary buckling machine according to claim 1, characterized in that: The end of the push rod (201) is assembled in the top plate (104), the inner guide sleeve (203) is assembled in the support plate (103), and the inner guide sleeve (203) is connected to the outer guide sleeve (202) through the push rod (201) and the trigger limit block (204).

4. The plastic mold secondary buckling machine according to claim 1, characterized in that: The interior of the push rod (201) is equipped with a spring (3) and a guide rod (4); the end of the spring (3) is equipped with a connecting block (5); and the end of the connecting block (5) is equipped with a push block (6).

5. The plastic mold secondary buckling machine according to claim 4, characterized in that: The connecting block (5) is sleeved on the surface of the guide rod (4), and the connecting block (5) is elastically retracted inside the top rod (201) via the spring (3).

6. The plastic mold secondary buckling machine according to claim 1, characterized in that: The top end of the outer guide sleeve (202) is connected to a protective plate (7), and the bottom end of the inner guide sleeve (203) is provided with a connecting groove adapted to the protective plate (7).

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