Anti-mold-sticking elastic ejection structure for multi-color covering product

Abstract

The utility model relates to the technical field of mold tools, in particular to a multi-color covering product mold sticking prevention elastic ejection structure which comprises a bottom plate. The guide block slides on the bottom plate; the elastic piece is arranged between the bottom plate and the guide block so as to provide elastic force for the guide block to move in the direction away from the bottom plate; the ejector rod is arranged on the guide block and is suitable for being in contact with the product; the reset rod is arranged on the guide block; and during mold closing, the reset rod is pressed, so that the reset rod and the ejector rod return. During mold closing, after the reset rod is pressed to drive the elastic piece below the guide block to be compressed, the ejector rod retracts back to a forming surface along with the reset rod. When the mold is opened, the elastic piece rebounds the guide block, then the ejector rod is popped out along with the guide block, and the end face of the ejector rod ejects the product, so that the product is not left in the mold and is prevented from being pulled to cause the defects of head warping and the like, the abnormal mold sticking phenomenon in the production process is reduced, the early-stage design work is simple, and the production efficiency is high. And the working efficiency can be well improved on the premise of well repairing, and the design is reasonable and novel.

Description

Technical Field

[0001] The utility model relates to the technical field of mold tooling, in particular to an anti-sticking mold elastic top structure for multi-color covering products. Background Art

[0002] In the modern automotive lighting industry, the market competition for two-color and multi-color products is fierce. If you want to stand out in the cruel competition system, the quality and performance of the products you produce must have comparable advantages. Due to the special structure of some multi-color products, in the early analysis process, in order to ensure the outstanding appearance, there is a risk of mold sticking. In the production process, one-color products often stick to the front mold after being molded in the mold cavity. Due to the sticking of the front mold, it is impossible to continue the two-color covering molding.

[0003] At present, the effective measures for one-color sticking mold usually adopt the following measures:

[0004] Solution 1: Add anti-sticking ribs to the rear mold area. Disadvantages: 1. Limited to product design, changes in appearance cannot be recognized by customers; 2. Unable to effectively increase the clamping force of the rear mold product, resulting in unbalanced demoulding of the product.

[0005] Solution 2: Add anti-sticking mold leather grain to the rear mold. Disadvantages: 1. Limited to product design, changes in appearance cannot be recognized by customers; 2. After the product is formed, it is easy to cause scratches and scraps, affecting production stability; 3. The leather grain production cost is expensive.

[0006] Solution 3: Arrange spring blocks on the parting surface along the edge of the front mold. Disadvantages: 1. After the spring blocks are activated, there is a step difference in the edge flange of the product, and there is a scratch defect on the parting surface after two-color coverage; 2. The defects in the appearance surface molding line cannot be recognized by customers; 3. Rework and scraping waste human resources.

[0007] Solution 4: Arrange the slider on the parting surface of the rear mold edge. Disadvantages: 1. After the slider is activated, the edge flange of the product is pulled out to form a step line, and the parting surface is scratched after the two-color covering; 2. The defects involving the molding line of the appearance surface cannot be recognized by customers; 3. Rework and scraping waste human resources. At the same time, since the cost of this structure is greatly increased compared to the ordinary spring block arrangement, and the installation of this structure is also more difficult, it cannot be widely used in conventional product structure arrangements. In addition, if this structure encounters problems such as jamming and spring failure during the production process, it will take a long time to repair. Utility Model Content

[0008] The technical problem to be solved by the utility model is: in order to solve the technical problems in the prior art, the utility model provides a multi-color covering product anti-sticking mold elastic top structure.

[0009] The utility model adopts the following technical scheme to solve the technical problem: a multi-color covering product anti-sticking mold elastic top structure, comprising a bottom plate; a guide block, which slides on the bottom plate; an elastic member, which is arranged between the bottom plate and the guide block, so as to provide the guide block with elastic force to move in a direction away from the bottom plate; a push rod, which is arranged on the guide block and is suitable for contacting with the product; a reset rod, which is arranged on the guide block; when the mold is closed, the reset rod is pressed so that the reset rod and the push rod are both retracted.

[0010] The utility model discloses a multi-color covering product anti-sticking mold spring-top structure. When the mold is closed, the reset rod is pressed to drive the elastic part under the guide block to be compressed, and the ejector rod retracts back to the molding surface together with the reset rod. After the product is formed, the mold is opened. When the mold is opened, the elastic part rebounds the guide block, and then the ejector rod pops out together. The end face of the ejector rod ejects the product, ensuring that the product does not remain in the mold, and at the same time ensuring that the product is not pulled to cause defects such as warping, greatly reducing abnormal mold sticking in the production process, and the preliminary design work is simple, and the work efficiency can be improved well under the premise of good repair. The design is reasonable and novel, and suitable for promotion and use.

[0011] Furthermore, the elastic member includes a first compression spring, a spring mounting hole is provided at the bottom of the guide block, the first compression spring is arranged in the spring mounting hole, one end of the first compression spring abuts against the top wall of the spring mounting hole, and the other end abuts against the bottom plate.

[0012] Furthermore, the elastic members are provided in at least two groups to improve the force uniformity of the guide block.

[0013] Furthermore, the guide block is provided with a push rod groove, and the push rod groove includes a first groove and a second groove connected to each other, the size of the first groove is larger than the size of the second groove, a sliding block is provided at the bottom of the push rod, the diameter of the sliding block is larger than the diameter of the push rod, the sliding block is located in the first groove, and the bottom of the push rod is located in the second groove.

[0014] Furthermore, a push pin is provided on the top of the push rod, and the push pin is arranged flat.

[0015] Furthermore, an oil groove is provided on the guide block.

[0016] Furthermore, the guide block is provided with a reset mounting hole, and the reset rod is inserted into the reset mounting hole.

[0017] Furthermore, a first guide sleeve is provided on the reset rod.

[0018] Furthermore, two first guide sleeves are provided, and the two first guide sleeves are provided at two ends of the reset rod along the axial direction of the reset rod.

[0019] Furthermore, a second guide sleeve is provided on the push rod.

[0020] The beneficial effects of the utility model are:

[0021] 1. When closing the mold, the reset rod is pressed to drive the elastic part under the guide block to compress, and the ejector rod retracts back to the molding surface with the reset rod. After the product is formed, the mold is opened. When the mold is opened, the elastic part rebounds the guide block, and then the ejector rod pops out together. The end face of the ejector rod ejects the product to ensure that the product does not remain in the mold. At the same time, it ensures that the product is not pulled to cause defects such as warping, which greatly reduces the abnormal sticking of the mold during the production process. The preliminary design work is simple, and the work efficiency can be improved well under the premise of good repair. The design is reasonable and novel, suitable for promotion and use;

[0022] 2. By setting multiple groups of elastic parts, the force uniformity of the guide block can be improved, thereby achieving synchronous demoulding and further ensuring the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a main structural schematic diagram of the overall anti-sticking mold elastic top structure of the multi-color covering product in the utility model.

[0025] Figure 2 It is a side view structural schematic diagram of the overall anti-sticking mold elastic top structure of the multi-color covering product in the utility model.

[0026] Figure 3 It is a schematic diagram of the top view of the structure of the anti-sticking mold elastic top structure of the multi-color covering product in the utility model.

[0027] Figure 4 It is a structural schematic diagram of the oil tank in the utility model.

[0028] Figure 5 It is a structural schematic diagram of the ejector pin in the utility model.

[0029] Figure 6 It is a structural schematic diagram of the reset rod in the utility model.

[0030] Figure 7 It is a structural schematic diagram of the first compression spring in the utility model.

[0031] Figure 8 It is a structural schematic diagram of the guide sleeve in the utility model.

[0032] In the figure: 1. ejector rod; 11. ejector pin; 12. second guide sleeve; 2. first guide sleeve; 3. guide block; 31. oil groove; 32. spring mounting hole; 33. first compression spring; 34. first groove; 35. second groove; 36. slider; 4. reset rod; 5. bottom plate. DETAILED DESCRIPTION

[0033] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0034] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The utility model discloses a multi-color covering product anti-sticking mold elastic top structure.

[0036] Reference Figures 1 to 8 A multi-color covering product anti-sticking mold ejector structure includes a bottom plate 5, a guide block 3 is slid on the bottom plate 5, and an elastic member is provided between the bottom plate 5 and the guide block 3 to provide an elastic force for the guide block 3 to move in a direction away from the bottom plate 5. The guide block 3 is provided with an ejector rod 1 and a reset rod 4, and the ejector rod 1 is suitable for contacting with the product to eject the product. When the mold is closed, the reset rod 4 is pressed so that the reset rod 4 and the ejector rod 1 are both retracted. When the mold is opened, the elastic member prompts the guide block 3 to reset so that the ejector rod 1 ejects the product. The bottom plate 5 is mounted on the mold by screws 7.

[0037] When the mold is closed, the reset rod 4 is pressed to drive the elastic part under the guide block 3 to be compressed, and the ejector rod 1 retracts back to the molding surface together with the reset rod 4. After the product is formed, the mold is opened. When the mold is opened, the elastic part rebounds the guide block 3, and then the ejector rod 1 pops out together. The end face of the ejector rod 1 ejects the product, ensuring that the product does not remain in the mold, and at the same time ensuring that the product is not pulled to cause defects such as warping, greatly reducing abnormal mold sticking in the production process, and the preliminary design work is simple, and the work efficiency can be well improved under the premise of good repair. The design is reasonable and novel, suitable for promotion and use.

[0038] Specifically, the elastic member includes a first compression spring 33. A spring mounting hole 32 is provided at the bottom of the guide block 3. The first compression spring 33 is installed in the spring mounting hole 32. One end of the first compression spring 33 abuts against the top wall of the spring mounting hole 32, and the other end abuts against the bottom plate 5. At least two groups of elastic members are provided to improve the force uniformity of the guide block 3. In this embodiment, two groups of elastic members are relatively provided along the length direction of the guide block 3.

[0039] According to the anti-sticking mold spring top structure of multi-color covered products in this embodiment, a top rod 1 groove is provided on the guide block 3, and the top rod 1 groove includes a first groove 34 and a second groove 35 connected to each other, and the size of the first groove 34 is larger than the size of the second groove 35. A slider 36 is provided at the bottom of the top rod 1, and the diameter of the slider 36 is larger than the diameter of the top rod 1. The slider 36 is located in the first groove 34, and the bottom of the top rod 1 is located in the second groove 35. During installation, the slider 36 is slid into the first groove 34, and the top rod 1 is slid into the second groove 35 at the same time. Through the cooperation of the slider 36 and the first groove 34, the top rod 1 can move together with the guide block 3.

[0040] Specifically, a pin 11 is disposed on the top of the ejector rod 1 , and the pin 11 is flatly disposed so as to contact with the product and eject the product. A second guide sleeve 12 is disposed on the ejector rod 1 .

[0041] More specifically, an oil groove 31 is provided on the guide block 3 to lubricate the guide block 3 and the base plate 5, reduce the friction between the two, facilitate running-in, and reduce the possibility of jamming. A reset mounting hole is also provided on the guide block 3, and the reset rod 4 is inserted into the reset mounting hole. The reset rod 4 is sleeved with a first guide sleeve 2. In this embodiment, two first guide sleeves 2 are provided. The two first guide sleeves 2 are provided at both ends of the reset rod 4 along the axial direction of the reset rod 4 to ensure the stability of the movement of the reset rod 4.

[0042] The mold in this embodiment includes an evenly arranged elastic top structure in the overlapping one-color area and two-color area. The covering surface of the two-color area and the one-color area is the elastic top arrangement surface, and the covering surface is composed according to the product structure. The one-color area is a single product after the product is first formed, and the two-color area is formed based on the single product of the one-color area. The two-color area is based on the one-color area to partially cover the one-color area to form the product. The one-color area is based on the complex structure of the front mold, and the front mold has a large clamping force. The two-color area is based on the back mold, and the back mold has no clamping force structure. The ejector pin 11 is set flat, which is also convenient for hiding the clamping line between the one-color area and the two-color area.

[0043] Working principle: When closing the mold, the reset rod 4 is pressed to drive the elastic part under the guide block 3 to be compressed, and the push rod 1 retracts back to the molding surface together with the reset rod 4. After the product is formed, the mold is opened. When the mold is opened, the middle elastic part rebounds the guide block 3, and then the push rod 1 pops out together. The end face of the push rod 1 ejects the product to ensure that the product does not remain in the mold. At the same time, it ensures that the product is not pulled to cause defects such as warping, which greatly reduces abnormal mold sticking during the production process. The preliminary design work is simple, and the work efficiency can be improved well under the premise of good repair. The design is reasonable and novel, and it is suitable for promotion and use. By setting multiple groups of elastic parts, the force uniformity of the guide block 3 can be improved, thereby achieving synchronous demolding and further ensuring the quality of the product.

[0044] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A multi-color covering product anti-sticking mold elastic top structure, characterized in that: include Bottom plate (5); A guide block (3) sliding on the bottom plate (5); An elastic member is disposed between the bottom plate (5) and the guide block (3) to provide an elastic force for the guide block (3) to move in a direction away from the bottom plate (5); A push rod (1) is arranged on the guide block (3) and is suitable for contacting the product; A reset rod (4) is arranged on the guide block (3); When the mold is closed, the reset rod (4) is pressed so that the reset rod (4) and the ejector rod (1) are both retracted to the molding surface; When the mold is opened, the reset rod (4) is reset to allow the ejector rod (1) to pop out and eject the product.

2. The anti-sticking mold top structure of multi-color covering products according to claim 1 is characterized in that: The elastic member comprises a first compression spring (33); a spring mounting hole (32) is provided at the bottom of the guide block (3); the first compression spring (33) is arranged in the spring mounting hole (32); one end of the first compression spring (33) abuts against the top wall of the spring mounting hole (32), and the other end abuts against the bottom plate (5).

3. The anti-sticking mold top structure of multi-color covering products according to claim 1 is characterized in that: The elastic members are provided in at least two groups to improve the force uniformity of the guide block (3).

4. The anti-sticking mold top structure of multi-color covering products according to claim 3 is characterized in that: The guide block (3) is provided with a push rod (1) groove, the push rod (1) groove comprises a first groove (34) and a second groove (35) connected to each other, the size of the first groove (34) is larger than the size of the second groove (35), a slider (36) is provided at the bottom of the push rod (1), the diameter of the slider (36) is larger than the diameter of the push rod (1), the slider (36) is located in the first groove (34), and the bottom of the push rod (1) is located in the second groove (35).

5. The anti-sticking mold top structure of multi-color covered products according to claim 3, characterized in that: A push pin (11) is provided at the top of the push rod (1), and the push pin (11) is arranged flat.

6. The anti-sticking mold top structure of multi-color covered products according to claim 5, characterized in that: An oil groove (31) is provided on the guide block (3).

7. The anti-sticking mold top structure of multi-color covered products according to claim 6, characterized in that: The guide block (3) is provided with a reset installation hole, and the reset rod (4) is inserted into the reset installation hole.

8. The anti-sticking mold top structure of multi-color covered products according to claim 7, characterized in that: The reset rod (4) is provided with a first guide sleeve (2).

9. The anti-sticking mold top structure of multi-color covered products according to claim 8, characterized in that: Two first guide sleeves (2) are provided, and the two first guide sleeves (2) are arranged at both ends of the reset rod (4) along the axial direction of the reset rod (4).

10. The anti-sticking mold top structure of multi-color covered products according to claim 9, characterized in that: A second guide sleeve (12) is provided on the push rod (1).

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