Automatic unloading mechanism and unloading method for outer belt line

Abstract

The invention relates to an automatic unloading mechanism and an unloading method.The unloading mechanism comprises an upper die plate and a lower die plate, the upper die plate is provided with a first sliding rail and a second sliding rail, a first sliding block is installed in the first sliding rail, a second sliding block is installed in the second sliding rail, the top of the first sliding block is connected with a first mold core, and the top of the second sliding block is connected with a second mold core; the first mold core is fixedly connected with a second sliding block through a first connecting rod assembly, the second sliding block is connected with a first driving assembly, a third sliding rail and a fourth sliding rail are arranged on the lower mold plate, a third sliding block is installed in the third sliding rail, a fourth sliding block is installed in the fourth sliding rail, and the third sliding block is connected with a second driving assembly through a second connecting rod assembly. The third sliding block is provided with an ejector block, the fourth sliding block is connected with a third driving assembly and a third connecting rod assembly, a second mold core is hinged to the third connecting rod assembly, and a rolling bearing is installed at the bottom of the second mold core. According to the invention, the complete demoulding of the product is realized through the overturning and horizontal movement mechanism for the complex product with the glue-receiving lip edge and the inverted buckle.

Description

Technical Field

[0001] The present invention relates to the technical field of demolding equipment for automotive sealing products, and particularly relates to an outer water cut automatic unloading mechanism and an unloading method. Background Art

[0002] Generally, for outer water cut products with fluff, the lip shape is relatively simple, and the lip with fluff is not glued. The structure of the mold is also relatively simple, which is convenient for mold demolding, and the design cost and production cost are relatively low. However, there are also some special outer water cut products. The length of the lip with fluff is relatively long and needs to be glued. The lip has a U-shaped incision, and there is an undercut at the incision position. Traditional equipment cannot ensure the perfect demolding of the product well, and the product is prone to damage during the demolding process. Summary of the Invention

[0003] The present invention aims to solve the deficiencies of the prior art and provides an outer water cut automatic unloading mechanism and an unloading method.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] An outer water cut automatic unloading mechanism includes an upper template and a lower template arranged up and down. The upper template is provided with a first slide rail and a second slide rail arranged in parallel. A first slider is slidably installed in the first slide rail, and a second slider is slidably installed in the second slide rail. The top of the first slider is connected with a first core. The first core is fixedly connected with the second slider through a first connecting rod assembly. The second slider is connected with a first driving component. The lower template is provided with a third slide rail and a fourth slide rail. A third slider is slidably installed in the third slide rail, and a fourth slider is slidably installed in the fourth slide rail. The third slider is connected with a second driving component through a second connecting rod assembly. A top block is arranged on the third slider. The fourth slider is connected with a third driving component. A third connecting rod assembly is connected to the fourth slider. A second core is hinged on the third connecting rod assembly. The second core is located below the first core. A rolling bearing is rotatably installed at the bottom of the second core, and the rolling bearing is arranged corresponding to the top block.

[0006] The first connecting rod assembly includes a first connecting rod and an L-shaped connecting plate. A first joint is installed on the second slider and is connected with the first driving component through the first joint. The middle position at the bottom of the first connecting rod is fixed on the first joint. The L-shaped connecting plate is connected to the end of the first connecting rod and is connected with the first core.

[0007] The second connecting rod assembly includes a second connecting rod and a pull rod. The bottom of the second connecting rod is fixed on the third slider. The pull rod is slidably installed on the upper template. One end of the pull rod is connected with the second driving component, and the other end of the pull rod is connected with the middle position at the top of the second connecting rod.

[0008] The third link assembly includes a third link, a vertical link and a mounting link. A second joint is provided on the fourth slider and is connected to the third driving assembly through the second joint. The middle position at the bottom of the third link is fixed to the second joint, and the end of the third link is connected to the mounting link through the vertical link. The mounting link is hinged to the second core.

[0009] Side grooves are symmetrically provided on both side walls of the mounting link. Two ear plates are provided on one side of the second core, and the two ear plates are arranged in the two side grooves and are hinged through a pin shaft.

[0010] The discharging method of the above-mentioned outer water cut automatic discharging mechanism is as follows:

[0011] S1. The first driving assembly drives the first core to retreat through the first link assembly;

[0012] S2. The second driving assembly drives the third slider to move through the second link assembly, and then drives the top block to move. The top block contacts the rolling bearing, causing the second core to rotate and lift;

[0013] S3. The third driving assembly drives the second core to retreat through the third link assembly.

[0014] The beneficial effects of the present invention are as follows: For complex products with lip gluing and undercuts, through the combination design of the flipping and horizontal movement mechanisms, the present invention realizes the perfect demolding of the products, improves the production efficiency, reduces the labor intensity of the operating workers, and ensures the product quality. Brief Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present invention;

[0016] Figure 2 is a schematic diagram of the connection between the first link assembly and the first core;

[0017] Figure 3 is a schematic diagram of the connection between the second link assembly and the top block;

[0018] Figure 4 is a schematic diagram of the connection between the third link assembly and the second core;

[0019] Figure 5 is a schematic diagram of the outer water cut extrusion strip;

[0020] Figure 6 is a schematic diagram of the outer water cut glue;

[0021] Figure 7 is a schematic diagram of the outer water cut product;

[0022] In the figure: 1 - upper template; 2 - lower template; 3 - first slide rail; 4 - second slide rail; 5 - first slider; 6 - second slider; 7 - first core; 8 - first connecting rod assembly; 9 - first driving assembly; 10 - third slide rail; 11 - fourth slide rail; 12 - third slider; 13 - fourth slider; 14 - second connecting rod assembly; 15 - second driving assembly; 16 - ejector block; 17 - third driving assembly; 18 - third connecting rod assembly; 19 - second core; 20 - rolling bearing; 21 - first joint; 22 - second joint; 23 - side groove; 24 - ear plate; 25 - pin shaft; 26 - vertical plate; 27 - outer water cut extrusion strip; 28 - lip; 29 - lip bending part; 30 - lip fluff; 31 - lip U-shaped notch; 32 - outer water cut rubber; 33 - first rubber undercut; 34 - second rubber undercut;

[0023] 801 - first connecting rod; 802 - L-shaped connecting plate;

[0024] 1401 - second connecting rod; 1402 - pull rod;

[0025] 1801 - third connecting rod; 1802 - vertical connecting rod; 1803 - mounting connecting rod;

[0026] The following will describe in detail with reference to the accompanying drawings in conjunction with the embodiments of the present invention. Specific embodiments

[0027] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention. In the following paragraphs, the present invention will be described more specifically by way of example with reference to the accompanying drawings. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the accompanying drawings are in a very simplified form and are all drawn using non-precise scales, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0028] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs. The terms used in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0031] An outer water cut automatic unloading mechanism, as Figures 1-4 shown, includes an upper template 1, a lower template 2, a first slide rail 3, a second slide rail 4, a first slider 5, a second slider 6, a first core 7, a first connecting rod assembly 8, a first driving assembly 9, a third slide rail 10, a fourth slide rail 11, a third slider 12, a fourth slider 13, a second connecting rod assembly 14, a second driving assembly 15, a top block 16, a third driving assembly 17, a third connecting rod assembly 18, a second core 19, a rolling bearing 20, a first joint 21, a second joint 22, a side groove 23, an ear plate 24, a pin shaft 25 and a vertical plate 26.

[0032] The upper template 1 and the lower template 2 are arranged up and down. The upper template 1 is provided with a first slide rail 3 and a second slide rail 4 arranged in parallel. A first slider 5 is slidably installed in the first slide rail 3, and a second slider 6 is slidably installed in the second slide rail 4. The top of the first slider 5 is connected with a first core 7. The first core 7 is fixedly connected with the second slider 6 through a first connecting rod assembly 8. The second slider 6 is connected with a first driving assembly 9. The lower template 2 is provided with a third slide rail 10 and a fourth slide rail 11. A third slider 12 is slidably installed in the third slide rail 10, and a fourth slider 13 is slidably installed in the fourth slide rail 11. The third slider 12 is connected with a second driving assembly 15 through a second connecting rod assembly 14. A top block 16 is arranged on the third slider 12. The fourth slider 13 is connected with a third driving assembly 17. A third connecting rod assembly 18 is connected to the fourth slider 13. A second core 19 is hinged on the third connecting rod assembly 18. The second core 19 is located below the first core 7. A rolling bearing 20 is rotatably installed at the bottom of the second core 19. The rolling bearing 20 is arranged corresponding to the top block 16.

[0033] The first connecting rod assembly 8 includes a first connecting rod 801 and an L-shaped connecting plate 802. A first joint 21 is installed on the second slider 6 and is connected with the first driving assembly 9 through the first joint 21. The middle position at the bottom of the first connecting rod 801 is fixed on the first joint 21. The L-shaped connecting plate 802 is connected to the end of the first connecting rod 801 and is connected with the first core 7.

[0034] The second link assembly 14 includes a second link 1401 and a pull rod 1402. The bottom of the second link 1401 is fixed to the third slider 12. The pull rod 1402 is slidably mounted on the upper template 1. One end of the pull rod 1402 is connected to the second drive assembly 15, and the other end of the pull rod 1402 is connected to the middle position of the top of the second link 1401.

[0035] The third link assembly 18 includes a third link 1801, a vertical link 1802 and a mounting link 1803. A second joint 22 is provided on the fourth slider 13 and is connected to the third drive assembly 17 through the second joint 22. The middle position of the bottom of the third link 1801 is fixed to the second joint 22. The end of the third link 1801 is connected to the mounting link 1803 through the vertical link 1802. The mounting link 1803 is hinged to the second core 19.

[0036] Symmetric side grooves 23 are provided on both side walls of the mounting link 1803. Two ear plates 24 are provided on one side of the second core 19. The two ear plates 24 are arranged in the two side grooves 23 and are hinged through a pin shaft 25.

[0037] Two vertical plates 26 are provided at the bottom of the second core 19. The rolling bearing 20 is rotatably mounted between the two vertical plates 26.

[0038] One side of the top block 16 facing the rolling bearing 20 is provided with an inclined surface.

[0039] There are two groups of the first slide rails 3 and they are symmetrically arranged on both sides of the second slide rail 4. There are two first cores 7 and the two first cores 7 are symmetrically mounted at both ends of the first link assembly 8. There are two groups of the third slide rails 10 and they are symmetrically arranged on both sides of the fourth slide rail 11. There are two second cores 19 and the two second cores 19 are symmetrically hinged at both ends of the third link assembly 18.

[0040] The forms of the first drive assembly 9, the second drive assembly 15 and the third drive assembly 17 are not fixed, as long as the functions can be realized. For example, in the present invention, the first drive assembly 9 is a cylinder, and the second drive assembly 15 and the third drive assembly 17 are oil cylinders, and brackets are correspondingly provided.

[0041] As Figure 5 shown, there is a special lip 28 on the outer water cut extrusion strip 27. Its special feature is that the length of the lip 28 is relatively long, and the shape is similar to the symbol "<", forming a bending point, that is, the lip bending part 29. Lip fluff 30 is attached to the lip 28. Near the lip bending part 29 of the lip 28, there is a lip U-shaped cut 31. An undercut is formed at the lip bending part 29 of the lip U-shaped cut 31, that is, a shape similar to a gourd with a small opening and a large inside. Therefore, it is necessary to ensure that the mold parts can be smoothly withdrawn, and at the same time ensure that the product is demolded without cracking and ensure the product quality. This is the design difficulty.

[0042] AsFigure 6 As shown, the main features of the outer water cut rubber 32 are as follows: there are two undercut areas, namely the first rubber undercut 33 and the second rubber undercut 34, where cracking is likely to occur. The reason is that if the parts at the first rubber undercut 33 and the second rubber undercut 34 are taken out simultaneously, tearing will occur at the first rubber undercut 33 with a larger undercut; if the movement direction or trajectory of the part is adjusted to prevent tearing at the first rubber undercut 33, tearing will occur at the second rubber undercut 34. Therefore, these two undercuts affect each other. To prevent the rubber from being damaged during demolding, the two undercuts are demolded separately.

[0043] As Figure 7 shown, considering the outer water cut extrusion strip 27 and the outer water cut rubber 32 together, the second rubber undercut 34 is connected to the lip bending part 29, and the undercut risk is greater. After comprehensive consideration, it is confirmed that a flipping mechanism is adopted for the second rubber undercut 34, and a horizontal demolding mechanism is adopted for the first rubber undercut 33.

[0044] The discharging method of the above-mentioned outer water cut automatic discharging mechanism is specifically as follows:

[0045] S1. The first driving component 9 drives the first core 7 to retreat through the first connecting rod component 8;

[0046] S2. The second driving component 15 drives the third slider 12 to move through the second connecting rod component 14, and then drives the ejector block 16 to move. The ejector block 16 contacts the rolling bearing 20, causing the second core 19 to rotate and lift;

[0047] S3. The third driving component 17 drives the second core 19 to retreat through the third connecting rod component 18.

[0048] For the complex product with lip glue connection and undercuts, the present invention realizes the perfect demolding of the product through the combined design of the flipping and horizontal movement mechanisms, improves the production efficiency, reduces the labor intensity of the operators, and ensures the product quality.

[0049] The present invention has been described exemplarily above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-mentioned manner. As long as various improvements are made by adopting the method concept and technical solution of the present invention, or directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. An external water cutting automatic unloading mechanism, characterized in that: The invention comprises an upper template (1) and a lower template (2) which are arranged in upper and lower parts, wherein the upper template (1) is provided with a first slide rail (3) and a second slide rail (4) which are arranged in parallel, a first slider (5) is slidably installed in the first slide rail (3), a second slider (6) is slidably installed in the second slide rail (4), a first core (7) is connected to the top of the first slider (5), the first core (7) is fixedly connected to the second slider (6) through a first connecting rod assembly (8), the second slider (6) is connected to a first driving assembly (9), a third slide rail (10) and a fourth slide rail (11) are provided on the lower template (2), a third slider (10) is slidably installed in the third slide rail (10), and a fourth slider (11) is slidably installed in the third slide rail (11). 2), a fourth slider (13) is slidably installed in the fourth slide rail (11), the third slider (12) is connected to the second driving assembly (15) through the second connecting rod assembly (14), a top block (16) is provided on the third slider (12), the fourth slider (13) is connected to the third driving assembly (17), the fourth slider (13) is connected to the third connecting rod assembly (18), a second core (19) is hingedly provided on the third connecting rod assembly (18), the second core (19) is located below the first core (7), a rolling bearing (20) is rotatably installed at the bottom of the second core (19), and the rolling bearing (20) is arranged corresponding to the top block (16).

2. The automatic unloading mechanism for external water cutting according to claim 1 is characterized in that: The first connecting rod assembly (8) comprises a first connecting rod (801) and an L-shaped connecting plate (802); a first joint (21) is installed on the second slider (6) and is connected to the first driving assembly (9) via the first joint (21); a bottom middle position of the first connecting rod (801) is fixed to the first joint (21); the L-shaped connecting plate (802) is connected to the end of the first connecting rod (801) and is connected to the first core (7).

3. The automatic unloading mechanism for external water cutting according to claim 1 is characterized in that: The second connecting rod assembly (14) includes a second connecting rod (1401) and a pull rod (1402). The bottom of the second connecting rod (1401) is fixed on the third slider (12), and the pull rod (1402) is slidably installed on the upper template (1). One end of the pull rod (1402) is connected to the second driving assembly (15), and the other end of the pull rod (1402) is connected to the middle position of the top of the second connecting rod (1401).

4. The automatic unloading mechanism for external water cutting according to claim 1 is characterized in that: The third connecting rod assembly (18) comprises a third connecting rod (1801), a vertical connecting rod (1802) and a mounting connecting rod (1803); a second joint (22) is provided on the fourth slider (13) and is connected to the third driving assembly (17) via the second joint (22); a bottom middle position of the third connecting rod (1801) is fixed to the second joint (22); an end of the third connecting rod (1801) is connected to the mounting connecting rod (1803) via the vertical connecting rod (1802); and the mounting connecting rod (1803) is hinged to the second core (19).

5. The automatic unloading mechanism for external water cutting according to claim 4 is characterized in that: Side grooves (23) are symmetrically arranged on both side walls of the mounting connecting rod (1803), and two ear plates (24) are arranged on one side of the second core (19). The two ear plates (24) are arranged in the two side grooves (23) and are hinged by a pin shaft (25).

6. The automatic unloading mechanism for external water cutting according to claim 1 is characterized in that: Two vertical plates (26) are arranged at the bottom of the second core (19), and the rolling bearing (20) is rotatably installed between the two vertical plates (26).

7. The automatic unloading mechanism for external water cutting according to claim 1 is characterized in that: A slope is provided on one side of the top block (16) facing the rolling bearing (20).

8. The automatic unloading mechanism for external water cutting according to claim 1 is characterized in that: There are two groups of first slide rails (3) and they are symmetrically arranged on both sides of the second slide rail (4); there are two first cores (7) and the two first cores (7) are symmetrically installed at both ends of the first connecting rod assembly (8); there are two groups of third slide rails (10) and they are symmetrically arranged on both sides of the fourth slide rail (11); there are two second cores (19) and the second cores (19) are symmetrically hinged at both ends of the third connecting rod assembly (18).

9. The automatic unloading mechanism for external water cutting according to claim 8, characterized in that: The first driving assembly (9) is a pneumatic cylinder, and the second driving assembly (15) and the third driving assembly (17) are oil cylinders.

10. A method for unloading an external water-cutting automatic unloading mechanism according to any one of claims 1 to 9, characterized in that: The specific steps are: S1, the first driving assembly (9) drives the first core (7) to move backward via the first connecting rod assembly (8); S2, the second driving assembly (15) drives the third slider (12) to move through the second connecting rod assembly (14), thereby driving the top block (16) to move, and the top block (16) contacts the rolling bearing (20), so that the second core (19) rotates and lifts up; S3, the third driving assembly (17) drives the second core (19) to retreat via the third connecting rod assembly (18).

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