Mechanical inclined ejection structure of small mold

Abstract

The utility model relates to a mechanical inclined ejection structure of a small mold, which comprises an upper needle plate and a lower needle plate which are arranged on a mold bottom plate, the upper needle plate is positioned above the lower needle plate and is connected with the lower needle plate, an ejection plate is arranged between the mold bottom plate and the lower needle plate, and the ejection plate adopts a plate-shaped structure with an inclined surface at the top; a through hole is formed in the ejector plate, an ejector plate guide column is inserted into the through hole, an upper needle plate guide column and a lower needle plate guide column are arranged on the mold bottom plate, needle plate guide holes are formed in the upper needle plate and the lower needle plate, the upper needle plate guide column and the lower needle plate guide column are arranged in the needle plate guide holes, and the lower needle plate and the ejector plate are connected and matched through a T-shaped block. The T-shaped block is arranged in a T-shaped channel jointly formed between the lower needle plate and the ejector plate in a sliding mode, and the T-shaped block linearly slides along the T-shaped channel. The oblique ejection mechanism realizes oblique ejection of small products, does not need to use an oil cylinder structure, does not need to enlarge the boundary dimension of the mold, and reduces the development cost of the mold and the production cost of parts.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field especially a small -size mould mechanical type oblique ejection structure. BACKGROUND

[0002] The mould is a kind of tool for producing product with certain shape and size requirement, and the rationality and machining precision of mould structure have direct influence on the quality and production efficiency of product, therefore, the design and manufacturing technology of mould are extremely concerned by all countries in the world, and new technology is actively explored, and new equipment is developed to meet the needs of modern mould development.With the rapid development of automobile industry, product structure requirement is higher and higher, and further corresponding mould requirement is also higher and higher.

[0003] In prior art, for the product needing oblique ejection, oil cylinder mechanism is generally used to eject.For the mould of small product, the size of mould is relatively small, and the installation space required by oil cylinder is large, cannot be normally installed, and the size of mould periphery needs to be increased.The size of mould is increased to use larger injection molding machine to produce, and cost waste in mould development and injection production link is caused.Therefore, a small mechanical type oblique ejection structure is needed to solve the above problems. UTILITY MODEL CONTENT

[0004] In view of the above-mentioned prior art for the mould of small product using oil cylinder mechanism to eject, increasing the size of mould periphery, causing cost waste and other shortcomings, the applicant provides a small mould mechanical type oblique ejection structure with reasonable structure, which can realize the oblique ejection of small product, does not need to use oil cylinder structure, the size of mould appearance does not need to be increased, and the development cost of mould and the production cost of parts are reduced.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A small mould mechanical type oblique ejection structure, including upper needle plate and lower needle plate arranged on mould bottom plate, upper needle plate is located above lower needle plate and is connected with lower needle plate, ejection plate is arranged between mould bottom plate and lower needle plate, ejection plate adopts plate-shaped structure with inclined surface at top, through hole is formed in ejection plate, ejection plate guide column is inserted in through hole, upper and lower needle plate guide columns are arranged on mould bottom plate, needle plate guide holes are formed in upper needle plate and lower needle plate, upper and lower needle plate guide columns are arranged in needle plate guide holes, T-shaped block is connected and matched between lower needle plate and ejection plate, T-shaped block is slidably arranged in T-shaped channel formed by lower needle plate and ejection plate, T-shaped block linearly slides along T-shaped channel, bottom of ejection plate is connected with top rod hole pull rod, top rod hole pull rod passes through top rod hole of mould bottom plate downward and is connected with top rod.

[0007] As a further improvement of the above technical scheme:

[0008] The ejection plate guide post is perpendicular to the bottom surface of the ejection plate, and is vertically arranged on the mold bottom plate.

[0009] A cylindrical cap is arranged at the position where the bottom of the ejection plate is matched with the ejection plate guide post, the cylindrical cap is fixed in the bottom of the ejection plate through a fastening bolt, and is sleeved on the outer periphery of the ejection plate guide post.

[0010] A slot is arranged on the bottom surface of the ejection plate, and a needle returning plate arranged on the top of the ejection plate is installed through the fastening bolt passing through the ejection plate in the slot.

[0011] The upper and lower needle plate guide posts are perpendicular to the surfaces of the upper and lower needle plates, and form an inclined angle with the top surface of the ejection plate, and the upper and lower needle plate guide posts are distributed in the space on both sides of the ejection plate.

[0012] A T-shaped slot is arranged on the top inclined surface of the ejection plate, a square slot is arranged on the bottom surface of the lower needle plate, and the top of the ejection plate and the bottom of the lower needle plate jointly form a T-shaped channel, and a T-shaped block is fixed on the lower needle plate through a fastening bolt.

[0013] A T-shaped slot is arranged on the bottom surface of the lower needle plate, a square slot is arranged on the top inclined surface of the ejection plate, and the bottom of the lower needle plate and the top of the ejection plate jointly form a T-shaped channel, and a T-shaped block is fixed on the ejection plate through a fastening bolt.

[0014] An ejection plate limiting column is arranged on the top surface of the ejection plate, the ejection plate limiting column is arranged in parallel with the ejection plate guide post, a runway-shaped through hole corresponding to the ejection plate limiting column is arranged in the upper and lower needle plates, and the ejection plate limiting column is inserted into the runway-shaped through hole.

[0015] A top block is arranged in the upper and lower needle plates, a slot is arranged on the bottom of the lower needle plate, and the top block arranged on the top of the upper needle plate is installed through the fastening bolt passing through the upper and lower needle plates in the slot.

[0016] The beneficial effects of the utility model are as follows:

[0017] The mechanism of the utility model realizes oblique ejection of small products, does not need to use a cylinder structure, does not need to increase the size of the mold, and reduces the development cost of the mold and the production cost of parts. Meanwhile, the complex mechanism of making a front mold tunnel core or a cylinder core due to product modeling problems is avoided, the appearance quality of products is ensured, and the product qualification rate is improved. DRAWINGS

[0018] Figure 1 It is a perspective view of the utility model.

[0019] Figure 2 It is a sectional view of the utility model.

[0020] Figure 3 For the working of the utility model Figure 1 .

[0021] Figure 4 For the working of the utility model Figure 2 .

[0022] Marked in the figure: 1, the upper needle plate; 2, the lower needle plate; 3, the ejection plate; 4, T-shaped block; 5, the ejection plate guide column; 6, the top rod hole pull rod; 7, the upper and lower needle plate guide column; 8, the upper and lower needle plate needle return; 9, product; 10, the top block; 11, the ejection plate needle return; 12, the mold base plate; 13, the ejection plate limiting column. DETAILED DESCRIPTION

[0023] The preferred embodiments of the utility model will be described in detail below with reference to the drawings.

[0024] Referring to Figures 1 to 4 The small mold mechanical oblique ejection structure comprises an upper needle plate 1 and a lower needle plate 2 arranged on a mold base plate 12, the upper needle plate 1 is located above the lower needle plate 2, the upper needle plate 1 is arranged in parallel above the lower needle plate 2 and is connected with the lower needle plate 2, the upper needle plate 1 and the lower needle plate 2 work in cooperation, and the upper needle plate 1 and the lower needle plate 2 are obliquely ejected during work. The bottom of the upper needle plate 1 and the lower needle plate 2 is provided with an ejection plate 3, and the lower needle plate 2 is arranged on the ejection plate 3. The ejection plate 3 adopts a plate structure with an inclined surface at the top, and the upper needle plate 1 and the lower needle plate 2 are arranged in an inclined manner on the top of the ejection plate 3. The ejection plate 3 is located between the mold base plate 12 and the lower needle plate 2, and the ejection plate 3 can be operated by the driving of the top rod.

[0025] A through hole is formed in the ejection plate 3, and an ejection plate guide column 5 is inserted in the through hole, the ejection plate guide column 5 is perpendicular to the bottom surface of the ejection plate 3, and the ejection plate guide column 5 is arranged vertically on the mold base plate 12, so that the ejection plate guide column 5 plays a guiding role on the ejection plate 3 during the ejection operation of the ejection plate 3. A cylindrical cap is embedded at the position where the bottom of the ejection plate 3 cooperates with the ejection plate guide column 5, the cylindrical cap is fixed in the bottom of the ejection plate 3 by a fastening bolt, and is sleeved on the outer periphery of the ejection plate guide column 5. A groove is formed on the bottom surface of the ejection plate 3, and an ejection plate needle return 11 located at the top of the ejection plate 3 is installed in the groove by penetrating the ejection plate 3 through a fastening bolt, the ejection plate needle return 11 protrudes from the top of the ejection plate 3 and is arranged in parallel with the ejection plate guide column 5, and the ejection plate needle return 11 can ensure the smooth reset of the ejection plate 3 during the ejection operation of the ejection plate 3.

[0026] The upper and lower needle plate guide posts 7 are arranged on the mold base plate 12, and the needle plate guide holes corresponding to each other are arranged on the upper needle plate 1 and the lower needle plate 2, and the needle plate guide holes on the upper needle plate 1 and the lower needle plate 2 are mutually penetrated and matched. The upper and lower needle plate guide posts 7 are inserted into the needle plate guide holes, the upper and lower needle plate guide posts 7 are perpendicular to the surfaces of the upper needle plate 1 and the lower needle plate 2, and form an inclined angle with the top surface of the ejection plate 3, and the upper and lower needle plate guide posts 7 are distributed in the space on both sides of the ejection plate 3.

[0027] The T-shaped block 4 is used to connect and match between the lower needle plate 2 and the ejection plate 3, and the T-shaped block 4 is slidably arranged in the T-shaped channel formed between the lower needle plate 2 and the ejection plate 3. Preferably, a reverse T-shaped groove channel is arranged on the top inclined surface of the ejection plate 3, and a square groove is arranged on the bottom surface of the lower needle plate 2, and the square groove and the top of the ejection plate 3 match to form a T-shaped channel. The T-shaped block 4 is placed in the T-shaped channel between the lower needle plate 2 and the ejection plate 3, and the top is fixed on the lower needle plate 2 by a fastening bolt, and linearly slides along the T-shaped channel between the lower needle plate 2 and the ejection plate 3. As an alternative, a reverse T-shaped groove channel is arranged on the bottom surface of the lower needle plate 2, and a square groove is arranged on the top inclined surface of the ejection plate 3, and the square groove and the bottom of the ejection plate 3 match to form a T-shaped channel. The T-shaped block 4 is placed in the T-shaped channel between the lower needle plate 2 and the ejection plate 3, and the bottom is fixed on the ejection plate 3 by a fastening bolt, and linearly slides along the T-shaped channel between the lower needle plate 2 and the ejection plate 3.

[0028] The ejection plate limiting column 13 is fixedly arranged on the upper surface of the ejection plate 3, and the ejection plate limiting column 13 is arranged in parallel with the ejection plate guide column 5, and a runway type through hole corresponding to the ejection plate limiting column 13 is arranged in the upper needle plate 1 and the lower needle plate 2, and the ejection plate limiting column 13 is inserted into the runway type through hole, and the travel range of the upper needle plate 1 and the lower needle plate 2 is limited when the upper needle plate 1 and the lower needle plate 2 are relatively displaced with the ejection plate 3.

[0029] The ejection plate 3 is arranged between the mold base plate 12 and the lower needle plate 2, the bottom of the ejection plate 3 is connected with the ejector pin hole pull rod 6 by a fastening bolt, a top pin hole is arranged on the mold base plate 12 to accommodate the ejector pin hole pull rod 6, and the ejector pin hole pull rod 6 passes through the top pin hole of the mold base plate 12 and is connected with the top pin. When the ejection operation is performed, the top pin drives the ejection plate 3 to be ejected upward through the ejector pin hole pull rod 6. The top block 10 is arranged in the upper needle plate 1 and the lower needle plate 2, and a slot is arranged on the bottom of the lower needle plate 2, and the top block 10 is arranged on the top of the upper needle plate 1 by passing through the upper needle plate 1 and the lower needle plate 2 through a fastening bolt in the slot, and the top of the top block 10 is in contact with the injection molded product 9 in the mold cavity, and when the ejection operation is performed, the top block 10 drives the product 9 to be ejected away from the mold in the direction of the product 9.

[0030] The utility model discloses a mechanism for the oblique ejection of the upper needle plate and the lower needle plate, and the mechanism comprises a lower needle plate, an upper needle plate, a T-shaped block, a top ejection plate, a top ejection plate guide column, a top ejection plate return needle, a top rod, a top rod hole pull rod and a mold bottom plate.

[0031] When the top ejection plate 3 is ejected, the T-shaped block 4 fixed on the lower needle plate 2 can slide left and right in the T-shaped channel of the top ejection plate 3, the upper needle plate 1 and the lower needle plate 2 are driven by the upper and lower needle plate guide columns 7 and the upper and lower needle plate return needles 8 to realize the oblique ejection, the top block 10 on the upper needle plate 1 is driven to complete the oblique ejection of the product 9, and finally the product 9 is smoothly ejected and taken.

[0032] The mechanism of the utility model does not need to use the oil cylinder structure, the mold appearance size does not need to increase, and the development cost of the mold and the production cost of the part are reduced. Meanwhile, the complex mechanism for making the front mold tunnel core-pulling or the oil cylinder core-pulling due to the product modeling problem is avoided, the appearance quality of the product is ensured, and the product qualification rate is improved.

[0033] Finally, it is to be explained that the above preferred embodiments are only used to illustrate the technical scheme of the utility model and not to limit, although the utility model has been described in detail through the above preferred embodiments, but those skilled in the art should understand that various changes can be made to the form and the details without departing from the range defined by the utility model claim book.

Claims

1. A small mold mechanical oblique ejection structure, characterized by: The present invention comprises an upper needle plate (1) and a lower needle plate (2) arranged on a mold bottom plate (12), wherein the upper needle plate (1) is located above the lower needle plate (2) and is connected to the lower needle plate (2), and an ejector plate (3) is arranged between the mold bottom plate (12) and the lower needle plate (2), wherein the ejector plate (3) adopts a plate-like structure with an inclined top, a through hole is provided on the ejector plate (3), and an ejector plate guide column (5) is inserted into the through hole, and upper and lower needle plate guide columns (7) are provided on the mold bottom plate (12), and the upper needle plate (1) and the lower needle plate (2) are connected to each other. A needle plate guide hole is provided on the needle plate (2), and upper and lower needle plate guide pins (7) are arranged in the needle plate guide hole. A T-shaped block (4) is used to connect and cooperate between the lower needle plate (2) and the ejector plate (3). The T-shaped block (4) is slidably arranged in a T-shaped channel formed between the lower needle plate (2) and the ejector plate (3). The T-shaped block (4) slides linearly along the T-shaped channel. The bottom of the ejector plate (3) is connected to the ejector rod hole pull rod (6), and the ejector rod hole pull rod (6) passes downward through the ejector rod hole of the mold bottom plate (12) and is connected to the ejector rod.

2. The small mold mechanical oblique ejection structure according to claim 1, characterized in that: The ejector plate guide pillar (5) and the bottom surface of the ejector plate (3) are perpendicular to each other, and the ejector plate guide pillar (5) is vertically arranged on the mold bottom plate (12).

3. The small mold mechanical oblique ejection structure according to claim 1, characterized in that: An embedded cylindrical cap is provided at the bottom of the ejector plate (3) where it cooperates with the ejector plate guide column (5). The cylindrical cap is fixed in the bottom of the ejector plate (3) by fastening bolts and is sleeved on the outer periphery of the ejector plate guide column (5).

4. The small mold mechanical oblique ejection structure according to claim 1, characterized in that: A slot is provided on the bottom surface of the ejector plate (3), and an ejector plate return pin (11) located at the top of the ejector plate (3) is installed in the slot after a fastening bolt passes through the ejector plate (3).

5. The small mold mechanical oblique ejection structure according to claim 1, characterized in that: The upper and lower needle plate guide pillars (7) are perpendicular to the surfaces of the upper needle plate (1) and the lower needle plate (2), and are inclined at an angle to the top surface of the ejection plate (3). The upper and lower needle plate guide pillars (7) are distributed in the spaces on both sides of the ejection plate (3).

6. The small mold mechanical oblique ejection structure according to claim 1, characterized in that: An inverted T-shaped groove channel is provided on the top inclined surface of the ejection plate (3), and a square groove is provided on the bottom surface of the lower needle plate (2), which cooperates with the top of the ejection plate (3) to form a T-shaped channel. The T-shaped block (4) is fixed to the lower needle plate (2) by fastening bolts.

7. The small mold mechanical oblique ejection structure according to claim 1, characterized in that: An inverted T-shaped groove channel is provided on the bottom surface of the lower needle plate (2), and a square groove is provided on the top inclined surface of the ejection plate (3), which cooperates with the bottom of the lower needle plate (2) to form a T-shaped channel. The T-shaped block (4) is fixed to the ejection plate (3) by fastening bolts.

8. The small mold mechanical oblique ejection structure according to claim 1, characterized in that: An ejector plate limiting column (13) is provided on the upper surface of the ejector plate (3), and the ejector plate limiting column (13) and the ejector plate guide column (5) are arranged parallel to each other. A runway-shaped through hole corresponding to the ejector plate limiting column (13) is opened in the upper needle plate (1) and the lower needle plate (2), and the ejector plate limiting column (13) is inserted into the runway-shaped through hole.

9. The small mold mechanical oblique ejection structure according to claim 1, characterized in that: A top block (10) is provided in the upper needle plate (1) and the lower needle plate (2), and a slot is provided at the bottom of the lower needle plate (2). A fastening bolt is passed through the upper needle plate (1) and the lower needle plate (2) in the slot and then the top block (10) located at the top of the upper needle plate (1) is installed.

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