Plastic mould ejector sleeve structure and mould

Abstract

The embodiment of the utility model discloses a plastic mould ejector sleeve structure and mould, the plastic mould ejector sleeve structure comprises a cylinder body, a cylinder needle, a first seat and a second seat, the first seat is sleeved on the second seat, the first seat is connected with an ejector plate, the second seat is connected with a bottom plate, the cylinder body is connected with the first seat, the cylinder needle is arranged in the cylinder body and is connected with the second seat, and the cylinder needle is arranged in the cylinder body and is connected with the second seat. Through the arrangement of the first seat and the second seat, the cylinder body can be extended and mounted on the ejector plate through the first seat, and the cylinder needle can be extended and mounted on the bottom plate through the second seat, so that the lengths of the cylinder body and the cylinder needle can be shortened to a great extent, the cylinder body is not easy to damage in the ejection process, and the cost increase caused by replacement of the cylinder body is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a plastic mold sleeve structure and a mold. Background Art

[0002] The ejector sleeve is also called an ejector tube or a hollow ejector pin. It is a metal accessory that must be equipped with an ejector device when there is a circular through hole or blind hole on the product. Generally, when there is a circular column structure on a plastic product, a ejector sleeve structure will be used to eject it from the mold when designing its mold to prevent the column from sticking to the mold and affecting the product quality. In a general mold, the ejector sleeve is a circular column that is pushed against the product. Through the ejector sleeve with its tubular push rod, the column on the product is ejected from the mold to complete the demolding. The use of an ejector sleeve and an ejector sleeve pin is called an ejector sleeve structure, which is one of the plastic mold accessories. It consists of an ejector sleeve and an ejector sleeve pin. The ejector sleeve is installed on the ejector pin plate, and the ejector sleeve pin is installed on the bottom plate. After the mold is opened, the ejector pin plate drives the ejector sleeve to eject the glue position wrapped on the ejector sleeve pin to complete the demolding.

[0003] The ejector pin does not directly belong to the ejection mechanism, but it and the ejector together form a special ejection device used to eject a specific part of the product in the mold. Therefore, although the ejector pin itself is not directly equivalent to the ejection mechanism, it works together with the ejector to realize the ejection function of the product in the mold. The ejector structure, the ejector is a movable part installed on the ejector plate, and the ejector pin is a fixed part installed on the bottom plate. The ejector sleeve slides on the ejector pin to eject the product.

[0004] The existing sleeve and sleeve needle are long, have weak ejection strength, and are easily damaged, thus affecting the cost. Utility Model Content

[0005] Based on this, it is necessary to provide a plastic mold sleeve structure and mold, aiming to solve the technical problems that the existing sleeve and sleeve needle are long, the ejection strength is weak, and they are easy to be damaged, thus affecting the cost.

[0006] In the first aspect, the utility model provides a plastic mold sleeve structure, which includes a cylinder body, a cylinder needle, a first seat and a second seat, the first seat is sleeved with the second seat, the first seat is connected to the ejector plate, the second seat is connected to the bottom plate, the cylinder body is connected to the first seat, the cylinder needle is arranged in the cylinder body and connected to the second seat.

[0007] In one embodiment, a first connecting block is provided at one end of the cylinder body, a second connecting block is provided at one end of the cylinder needle, the first seat is provided with a first connecting groove, the second seat is provided with a second connecting groove, the first connecting block is installed in the first connecting groove, and the second connecting block is installed in the second connecting groove.

[0008] In one embodiment, both the first connecting block and the second connecting block are T-shaped blocks, and both the first connecting groove and the second connecting groove are T-shaped grooves.

[0009] In one embodiment, the first seat is provided with a first protrusion, and the first protrusion abuts against the ejector plate.

[0010] In one embodiment, the plastic mold sleeve structure also includes a pressure plate and a fastener, the second seat is provided with a second protrusion, the pressure plate presses the second protrusion so that the second protrusion abuts against the bottom plate, and the fastener passes through the pressure plate and is connected to the bottom plate.

[0011] In one embodiment, the barrel is further provided with a forming groove, and the forming groove cooperates with the barrel needle to form a product.

[0012] In one embodiment, the cylinder is further provided with a space-avoiding section, and the space-avoiding section is used for product escape.

[0013] In one embodiment, the diameter of the air avoidance section is 7.5 mm to 7.6 mm.

[0014] In one embodiment, the wall thickness of the cylinder is 2 mm to 2.15 mm.

[0015] In a second aspect, the utility model further provides a mold, wherein the mold comprises the plastic mold sleeve structure of any one of the above embodiments.

[0016] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0017] The plastic mold sleeve structure of the utility model is adopted, in which the first seat of the plastic mold sleeve structure is sleeved with the second seat, the first seat is connected to the ejector plate, the second seat is connected to the bottom plate, the cylinder is connected to the first seat, the cylinder needle is arranged in the cylinder and connected to the second seat, and by arranging the first seat and the second seat, the cylinder can be extended and installed on the ejector plate through the first seat, and the cylinder needle can be extended and installed on the bottom plate through the second seat, which can greatly shorten the length of the cylinder and the cylinder needle, making it difficult for the cylinder to be damaged during the ejection process, thereby avoiding the increase in cost due to replacement of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] in:

[0020] Figure 1 Schematic diagram of an axonometric view of a mold in one embodiment.

[0021] Figure 2 for Figure 1 Schematic diagram of the sleeve structure in the mold shown.

[0022] Figure 3 for Figure 2 A cross-sectional view of the AA portion of the sleeve structure shown.

[0023] Figure 4 for Figure 3 Schematic diagram of part B in the sleeve structure shown.

[0024] Figure 5 for Figure 3 Schematic diagram of section C in the sleeve structure shown.

[0025] Reference numerals:

[0026] 1. Cylinder; 11. First connecting block; 12. Forming groove; 13. Air-avoiding section;

[0027] 2. Cylinder needle; 21. Second connecting block;

[0028] 3. First seat; 31. First connecting groove; 32. First protrusion;

[0029] 4. second seat; 41. second connecting groove; 42. second protrusion;

[0030] 5. Pressing plate; 6. Fasteners;

[0031] 100, ejector plate; 200, bottom plate. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.

[0035] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0036] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0037] Please combine Figures 1 to 5 Now, the plastic mold sleeve structure provided by the utility model is described. The plastic mold sleeve structure is used in a mold.

[0038] The plastic mold cylinder structure includes a cylinder body 1, a cylinder needle 2, a first seat 3 and a second seat 4. The first seat 3 is sleeved with the second seat 4, the first seat 3 is connected to the ejector plate 100, the second seat 4 is connected to the bottom plate 200, the cylinder body 1 is connected to the first seat 3, the cylinder needle 2 is arranged in the cylinder body 1 and connected to the second seat 4.

[0039] It can be understood that the first seat 3 of the plastic mold cylinder structure is sleeved with the second seat 4, the first seat 3 is connected to the ejector plate 100, the second seat 4 is connected to the bottom plate 200, the cylinder 1 is connected to the first seat 3, the cylinder needle 2 is arranged in the cylinder 1 and connected to the second seat 4. By arranging the first seat 3 and the second seat 4, the cylinder 1 can be extended and installed on the ejector plate 100 through the first seat 3, and the cylinder needle 2 can be extended and installed on the bottom plate 200 through the second seat 4. In this way, the length of the cylinder 1 and the cylinder needle 2 can be shortened to a great extent, so that the cylinder 1 is not easily damaged during the ejection process, thereby avoiding the increase in cost due to replacement of the cylinder 1.

[0040] In this embodiment, a first connection block 11 is provided at one end of the cylinder body 1, a second connection block 21 is provided at one end of the cylinder needle 2, a first connection groove 31 is provided at the first seat 3, a second connection groove 41 is provided at the second seat 4, the first connection block 11 is installed in the first connection groove 31, and the second connection block 21 is installed in the second connection groove 41. In this way, the cylinder body 1 can be connected to the first seat 3, and the cylinder needle 2 can be connected to the second seat 4.

[0041] Specifically, the first connecting block 11 and the second connecting block 21 are both T-shaped blocks, and the first connecting groove 31 and the second connecting groove 41 are both T-shaped grooves.

[0042] Of course, in other embodiments, the first connecting block 11 and the second connecting block 21 are both dovetail blocks, and the first connecting groove 31 and the second connecting groove 41 are both dovetail grooves.

[0043] In one embodiment, the diameter of the barrel 1 is 8 mm, and the diameter of the barrel needle 2 is 3.7 mm.

[0044] In one embodiment, the gap between the barrel 1 and the first seat 3 is 0.1 mm. The gap between the second seat 4 and the first seat 3 is 0.1 mm. In this way, the gap between the barrel 1 and the first seat 3 and the gap between the second seat 4 and the first seat 3 can be reduced, thereby reducing the shaking of the barrel needle 2.

[0045] In one embodiment, if Figure 2 and Figure 3 As shown, the first seat 3 is provided with a first protrusion 32, and the first protrusion 32 abuts against the ejector plate 100. The first protrusion 32 abuts against the ejector plate 100, so that the ejector plate 100 can drive the first seat 3 to move, and the first seat 3 drives the cylinder 1 to move.

[0046] In one embodiment, continue as Figure 2 and Figure 3 As shown, the plastic mold sleeve structure also includes a pressing plate 5 and a fastener 6. The second seat 4 is provided with a second protrusion 42. The pressing plate 5 presses the second protrusion 42 so that the second protrusion 42 abuts against the bottom plate 200. The fastener 6 passes through the pressing plate 5 and is connected to the bottom plate 200. Specifically, the fastener 6 can be a bolt. The pressing plate 5 presses the second protrusion 42 on the bottom plate 200. The fastener 6 passes through the pressing plate 5 and is threadedly connected to the bottom plate 200, so that the second seat 4 is connected to the bottom plate 200.

[0047] In one embodiment, if Figure 2 , Figure 3 and Figure 5 As shown, the barrel 1 is also provided with a forming groove 12, and the forming groove 12 cooperates with the barrel needle 2 to form a product. By providing the forming groove 12, compared with the prior art without the forming groove 12, the wall thickness of the barrel 1 can be increased, the diameter can be thickened, and the strength can be improved.

[0048] In one embodiment, if Figure 2 As shown, the cylinder 1 is also provided with a gap-avoiding section 13, which is used for product ejection. Since the cylinder 1 is also provided with a forming groove 12, the forming groove 12 cooperates with the cylinder needle 2 to form the product, so that the cylinder 1 can cover the product, making it difficult for the product to be ejected. The cylinder 1 is provided with a gap-avoiding section 13, so that the cylinder 1 can have a gap with the template and can shake, and will not get stuck, which is conducive to the ejection of the product.

[0049] In this embodiment, the diameter of the air-avoiding section 13 is 7.5 mm to 7.6 mm. Specifically, the diameter of the air-avoiding section 13 is 7.5 mm, 7.55 mm or 7.6 mm. In practice, the diameter of the air-avoiding section 13 is 7.5 mm, which is smaller than the diameter of the cylinder 1 of 8 mm, so that a gap can be generated between the cylinder 1 and the template.

[0050] Further, the wall thickness of the cylinder 1 is 2 mm to 2.15 mm. Specifically, the wall thickness of the cylinder 1 is 2 mm, 2.05 mm, 2.1 mm or 2.15 mm. In practice, the wall thickness of the cylinder 1 is 2.15 mm, which can increase the structural strength of the cylinder 1 and increase the ejection force.

[0051] The utility model also provides a mold, which includes the plastic mold sleeve structure of any one of the above embodiments.

[0052] It can be understood that the mold of the present invention uses the above-mentioned plastic mold sleeve structure, so that the first seat 3 of the plastic mold sleeve structure is sleeved with the second seat 4, the first seat 3 is connected to the ejector plate 100, the second seat 4 is connected to the bottom plate 200, the cylinder 1 is connected to the first seat 3, the cylinder needle 2 is arranged in the cylinder 1 and connected to the second seat 4. By setting the first seat 3 and the second seat 4, the cylinder 1 can be extended and installed on the ejector plate 100 through the first seat 3, and the cylinder needle 2 can be extended and installed on the bottom plate 200 through the second seat 4. This can greatly shorten the length of the cylinder 1 and the cylinder needle 2, so that the cylinder 1 is not easily damaged during the ejection process, thereby avoiding the increase in cost by replacing the cylinder 1.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A plastic mold sleeve structure, characterized in that: The plastic mold cylinder structure includes a cylinder body, a cylinder needle, a first seat and a second seat, the first seat is sleeved with the second seat, the first seat is connected to the ejector plate, the second seat is connected to the bottom plate, the cylinder body is connected to the first seat, the cylinder needle is arranged in the cylinder body and connected to the second seat.

2. The plastic mold sleeve structure according to claim 1, characterized in that: A first connecting block is provided at one end of the cylinder body, a second connecting block is provided at one end of the cylinder needle, the first seat is provided with a first connecting groove, the second seat is provided with a second connecting groove, the first connecting block is installed in the first connecting groove, and the second connecting block is installed in the second connecting groove.

3. The plastic mold sleeve structure according to claim 2, characterized in that: The first connecting block and the second connecting block are both T-shaped blocks, and the first connecting groove and the second connecting groove are both T-shaped grooves.

4. The plastic mold sleeve structure according to claim 1, characterized in that: The first seat is provided with a first protrusion, and the first protrusion abuts against the ejector plate.

5. The plastic mold sleeve structure according to claim 1, characterized in that: The plastic mold sleeve structure also includes a pressing plate and a fastener. The second seat is provided with a second protrusion. The pressing plate presses the second protrusion so that the second protrusion abuts against the bottom plate. The fastener passes through the pressing plate and is connected to the bottom plate.

6. The plastic mold sleeve structure according to claim 1, characterized in that: The cylinder body is also provided with a forming groove, and the forming groove cooperates with the cylinder needle to form a product.

7. The plastic mold sleeve structure according to claim 1, characterized in that: The cylinder is also provided with a space-avoiding section, and the space-avoiding section is used for product escape.

8. The plastic mold sleeve structure according to claim 7, characterized in that: The diameter of the air avoidance section is 7.5 mm to 7.6 mm.

9. The plastic mold sleeve structure according to claim 1, characterized in that: The wall thickness of the cylinder is 2 mm to 2.15 mm.

10. A mold, characterized in that: The mold comprises a plastic mold sleeve structure as described in any one of claims 1-9.

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