A new water line rotary forming die

Abstract

The utility model discloses a novel water line rotary forming die, including cup mould, cup mould axle, push out rod and push out board, cup mould can rotate and set in cup mould axle lower extreme, push out rod can axially remove and be equipped with in cup mould axle, push out rod lower extreme is connected push out board, and push out rod upper extreme is equipped with the elastic reset structure, its characterized in that: the elastic reset structure includes spring, plane bearing, copper bush and male mould core axle head, plane bearing, spring and copper bush all cover and set in push out rod upper extreme, copper bush is limited in cup mould axle upper extreme, and copper bush upper extreme is equipped with first step hole, spring lower extreme is limited in first step hole, and spring upper extreme is limited in plane bearing lower extreme, male mould core axle head is fixed in push out rod top, and corresponding plane bearing is limited in male mould core axle head lower extreme. The utility model is equipped with plane bearing for spring, prevents the die from being damaged when water line forming.

Description

Technical Field

[0001] This utility model relates to an improved invention of paper container water-line forming equipment, and more particularly to an improved invention of a novel water-line rotary forming mold. Background Technology

[0002] Traditional waterline cup molds use copper or nylon pads on both sides of the cup mold spring. After prolonged use, these pads wear out significantly. If the pads are not replaced in time, the spring will continue to wear down the copper sleeve, eventually causing the cup mold and copper sleeve to fail. The worn cup mold and copper sleeve debris pose a risk of contaminating the product, affecting the mold forming accuracy, product safety, and quality. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a new type of waterline rotary forming mold.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: This novel waterline rotary forming mold includes a cup mold, a cup mold shaft, an ejector rod, and an ejector plate. The cup mold is rotatably disposed at the lower end of the cup mold shaft. The ejector rod is axially movable and passes through the cup mold shaft. The lower end of the ejector rod is connected to the ejector plate, and the upper end of the ejector rod is equipped with an elastic reset structure. The elastic reset structure includes a spring, a plane bearing, a copper sleeve, and a male mold mandrel head. The plane bearing, spring, and copper sleeve are all sleeved on the upper end of the ejector rod. The copper sleeve is limited to the upper end of the cup mold shaft, and the upper end of the copper sleeve is provided with a first step hole. The lower end of the spring is limited to the first step hole, and the upper end of the spring is limited to the lower end of the plane bearing. The male mold mandrel head is fixed to the top end of the ejector rod, and the corresponding plane bearing is limited to the lower end of the male mold mandrel head.

[0005] The upper end of the cup mold shaft is provided with a second stepped hole, and the copper sleeve is fitted into the second stepped hole.

[0006] The top of the ejector rod is a reduced diameter end, and the corresponding planar bearing is located between the stepped surface formed by the reduced diameter of the male mold mandrel head and the cup mold shaft.

[0007] The cup mold has a bottom insert at the lower end, and the corresponding ejector plate is located inside the bottom insert.

[0008] The cup mold and the cup mold shaft are equipped with two sets of deep groove ball bearings, one upper and one lower.

[0009] The beneficial effect of this utility model is that the improved new waterline rotary forming mold has an innovative feature: a flat bearing is installed on the top of the cup mold spring, and a stepped hole is machined on the top of the copper sleeve. When the cup mold rotates, the spring is fixed inside the copper sleeve and cannot rotate, thus preventing damage to the mold during waterline forming. Attached Figure Description

[0010] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a cross-sectional view of the structure of this utility model.

[0013] Figure 3 The structural three-dimensional representation of this utility model Figure 1 .

[0014] Figure 4 The structural three-dimensional representation of this utility model Figure 2 . Detailed Implementation

[0015] The accompanying drawings illustrate the structure of this utility model, and further details will be described below with reference to the drawings. In this embodiment, see the attached drawings. Figure 1-4 This novel waterline rotary forming mold includes a cup mold 1, a cup mold shaft 2, an ejector rod 3, and an ejector plate 4. The cup mold 1 is rotatably mounted on the lower end of the cup mold shaft 2 and has a waterline forming groove 5. The ejector rod 3 is axially movable and passes through the cup mold shaft 2. The lower end of the ejector rod 3 is connected to the ejector plate 4, and the upper end of the ejector rod 3 is equipped with an elastic reset structure. The elastic reset structure includes a spring 6, a plane bearing 7, a copper sleeve 8, and a male mold mandrel head 9. The plane bearing 7, spring 6, and copper sleeve 8 are all sleeved on the upper end of the ejector rod 3. The copper sleeve 8 is limited to the upper end of the cup mold shaft 2, and the upper end of the copper sleeve 8 has a first step hole 10. The lower end of the spring 6 is limited to the first step hole 10, and the upper end of the spring 6 is limited to the lower end of the plane bearing 7. The male mold mandrel head 9 is fixed to the top end of the ejector rod 3, and the corresponding plane bearing 7 is limited to the lower end of the male mold mandrel head 9.

[0016] In this invention, a paper cup is fitted onto a cup mold 1 and rolled by rollers corresponding to the water line forming groove 5 to form a groove line, i.e., a water line, on the paper cup. During this process, the cup mold 1 rotates with the paper cup. When demolding, the ejector rod 3 pushes the ejector plate 4 downward. The ejector plate 4 contacts the bottom of the cup and rotates accordingly, thus demolding the paper cup. The ejector rod 3 rotates under the drive of the ejector plate 4, and the spring 6 on it remains stationary under the action of the plane bearing 7, thereby eliminating wear.

[0017] As a further improved specific implementation, the upper end of the cup mold shaft 2 is provided with a second step hole 11, and the copper sleeve 8 is matched and embedded in the second step hole 11 to achieve precise radial positioning.

[0018] As a further improved specific implementation, the top end of the ejector rod 3 is a reduced diameter end, and the corresponding plane bearing 7 is limited between the male mold mandrel head 9 and the stepped surface formed by the reduced diameter of the cup mold shaft 2 to avoid axial movement.

[0019] As a further improved specific implementation, the cup mold 1 is provided with a bottom insert 12 at the lower end, and the corresponding ejector plate 4 is located in the bottom insert 12. The bottom insert 12 is used to contact and limit the inner bottom of the paper container.

[0020] As a further improvement, two sets of deep groove ball bearings 13 are provided between the cup mold 1 and the cup mold shaft 2 to reduce radial runout and ensure consistent waterline depth.

[0021] In summary, the above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A novel waterline rotary forming mold, comprising a cup mold, a cup mold shaft, an ejector rod, and an ejector plate, wherein the cup mold is rotatably disposed at the lower end of the cup mold shaft, the ejector rod is axially movable and passes through the cup mold shaft, the lower end of the ejector rod is connected to the ejector plate, and the upper end of the ejector rod is provided with an elastic reset structure, characterized in that: The elastic reset structure includes a spring, a plane bearing, a copper sleeve, and a male mold mandrel head. The plane bearing, spring, and copper sleeve are all sleeved on the upper end of the ejector rod. The copper sleeve is located at the upper end of the cup mold shaft, and the upper end of the copper sleeve is provided with a first step hole. The lower end of the spring is located within the first step hole, and the upper end of the spring is located at the lower end of the plane bearing. The male mold mandrel head is fixed to the top of the ejector rod, and the corresponding plane bearing is located at the lower end of the male mold mandrel head.

2. The novel waterline rotary forming mold as described in claim 1, characterized in that: The upper end of the cup mold shaft is provided with a second stepped hole, and the copper sleeve is fitted into the second stepped hole.

3. The novel waterline rotary forming mold as described in claim 1, characterized in that: The top of the ejector rod is a reduced diameter end, and the corresponding planar bearing is located between the stepped surface formed by the reduced diameter of the male mold mandrel head and the cup mold shaft.

4. The novel waterline rotary forming mold as described in claim 1, characterized in that: The cup mold has a bottom insert at the lower end, and the corresponding ejector plate is located inside the bottom insert.

5. The novel waterline rotary forming mold as described in claim 1, characterized in that: The cup mold and the cup mold shaft are equipped with two sets of deep groove ball bearings, one upper and one lower.

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