U-shaped pipe mold easy to demold

Abstract

The utility model belongs to the technical field of mold equipment, and relates to an easy-to-demold U-shaped pipe mold which comprises a top plate and a base, the top plate and the base are fixedly connected through a fixed beam, the lower surface of the top plate is fixedly connected with a first hydraulic cylinder, the lower end of the first hydraulic cylinder is fixedly connected with a movable mold base, and a movable mold is fixedly connected below the movable mold base. A fixed mold is fixedly connected above the fixed mold base, a mold cavity is formed between the movable mold and the fixed mold, guide grooves matched with the guide columns are formed in the two sides of the movable mold, a casting hole communicated with the mold cavity is formed in the surface of the movable mold, and an ultrasonic vibration plate is fixedly connected to the outer side of the mold cavity in the fixed mold; after the U-shaped pipe is formed, vibration waves are sent out through the ultrasonic vibration plate, so that gaps are formed between the model and the mold and between the model and the mold cavity, and the problem that the surface of the model is excessively attached to the inner wall of the mold, so that no gap exists between the model and the mold, and the model is very inconvenient to demold is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold equipment, in particular to an easy-to-demold U-shaped tube mold. Background Art

[0002] With the development of modern society and the improvement of people's living standards, people's thinking has also changed. Molds are important process equipment for industrial production, and the mold industry is a basic industry for the national economy. Without molds, there will be no high-quality products. Parts processed by molds have a series of advantages such as high production efficiency, good quality, material saving, and low cost. In industrial products, people often require products with curvature, arcs such as U-shaped pipes and other inward-bending shapes, such as automobile intake manifolds, industrial instruments and meters, plastic building materials connection elbows and other fields.

[0003] Currently, most models are melted by heat and then placed in a mold, which is then cooled and formed in the mold. However, during the cooling and forming process, the surface of the model will fit too closely to the inner wall of the mold. As there is no gap between the model and the mold, it is very inconvenient to demold the model. Utility Model Content

[0004] The utility model aims to provide a U-shaped tube mold that is easy to demould, which solves the problem that most of the models in the prior art are melted by heat and then placed in a mold, and then cooled and formed in the mold, but when cooling and forming, the surface of the model is too close to the inner wall of the mold, and there is no gap between the model and the mold, which makes it very inconvenient to demould the model.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a U-shaped tube mold that is easy to demold, comprising a top plate and a base, the top plate and the base are fixedly connected by a fixed beam, the lower side of the top plate is fixedly connected to a first hydraulic cylinder, the lower end of the first hydraulic cylinder is fixedly connected to a movable mold seat, the lower side of the movable mold seat is fixedly connected to a movable mold, a plurality of guide columns are provided on the lower side of the movable mold, a sliding plate is slidably provided on the upper side of the base, a fixed mold seat is fixedly connected on the sliding plate, a fixed mold is fixedly connected above the fixed mold seat, a mold cavity is provided in the middle of the movable mold and the fixed mold, the mold cavities of the movable mold and the fixed mold are symmetrically arranged up and down, and the cross-sections of the mold cavities are both semicircular, a guide groove matching the guide column is provided on the upper side of the fixed mold, a casting hole connected to the mold cavity is provided on the surface of the movable mold, an ultrasonic vibration plate is fixedly connected to the outer side of the fixed mold, and the ultrasonic vibration plate is connected to the ultrasonic generator on the fixed mold.

[0006] As a preferred solution, the outer end of the casting hole is arranged on one side of the movable mold, and the inner end thereof is arranged on the upper side of the mold cavity, and the outer end of the casting hole is arranged higher than the inner end thereof.

[0007] As a preferred solution, the casting hole is inclined, and its inclination angle is 15°-30°.

[0008] As a preferred solution, the lower end of the guide column is conical.

[0009] As a preferred solution, the movable mold is provided with an exhaust hole connected to the mold cavity.

[0010] As a preferred solution, a slide rail is provided at the bottom of the sliding plate, and a slide groove cooperating with the slide rail is provided on the upper side of the base.

[0011] As a preferred solution, a second hydraulic cylinder is connected between the sliding plate and the base.

[0012] Compared with the prior art, the beneficial effects of the utility model include:

[0013] After the U-tube is formed, the utility model uses an ultrasonic vibration plate to emit vibration waves to create a gap between the model, the mold and the mold cavity, thereby avoiding the problem that the surface of the model is too close to the inner wall of the mold, resulting in no gap between the model and the mold, making it very inconvenient to demould the model. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0015] Figure 2 This is a front view of an embodiment of the utility model;

[0016] Figure 3 It is a side view of an embodiment of the utility model;

[0017] Figure 4 This is a cross-sectional view of an embodiment of the utility model;

[0018] Figure 5 It is a schematic diagram of the structure of the embodiment of the utility model when the mold is closed. DETAILED DESCRIPTION

[0019] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction to the technical solution of the utility model.

[0020] The following will be combined with the instructions attached Figure 1-5 And specific implementation methods are used to describe the above technical solutions in detail:

[0021] The utility model provides a U-shaped tube mold that is easy to demould, comprising a top plate 1 and a base 2, the top plate 1 and the base 2 are fixedly connected by a fixed beam 3, a first hydraulic cylinder 13 is fixedly connected to the lower side of the top plate 1, a movable mold seat 14 is fixedly connected to the lower end of the first hydraulic cylinder 13, a movable mold 15 is fixedly connected below the movable mold seat 14, a plurality of guide columns 16 are arranged on the upper side of the movable mold 15, a sliding plate 21 is slidably arranged on the upper side of the base 2, a fixed mold seat 22 is fixedly connected to the sliding plate 21, and a fixed mold 23 is fixedly connected above the fixed mold seat 22. A mold cavity 4 is arranged in the middle of the movable mold 15 and the fixed mold 23, the mold cavities 4 of the movable mold 15 and the fixed mold 23 are symmetrically arranged up and down, and the cross-sections of the mold cavities 4 of the movable mold 15 and the fixed mold 23 are both semicircular. A guide groove 17 matching the guide column 16 is opened on the upper side of the fixed mold 23, and the lower end of the guide column 16 is preferably arranged in a cone shape so as to smoothly enter the guide groove 17. The movable mold 15 is provided with a casting hole 18 connected to the mold cavity 4. The outer side of the mold cavity 4 on the fixed mold 23 is fixedly connected with an ultrasonic vibration plate 11, which is connected to the ultrasonic generator on the outer side of the fixed mold 23 through a high-frequency line. When casting a U-shaped tube, a mold core is first placed in the semicircular mold cavity 4. Support frames are set at both ends of the mold core to ensure that the manufactured product is a hollow tubular structure. Then the first hydraulic cylinder 13 is controlled to drive the fixed mold 23 to descend until it is molded with the fixed mold 23. At this time, the guide column 16 is inserted into the guide groove 17. Casting liquid is injected into the mold cavity 4 through the casting hole 18 set on one side of the movable mold 15. After the casting liquid is injected, you can wait for the molding to be completed. After the molding is completed, start the ultrasonic generator, and the ultrasonic vibration plate 11 begins to vibrate, so that the U-shaped tube after molding produces a slight vibration and can produce a gap between the mold cavity 4 and the mold core, which is convenient for subsequent demolding work. Then, the hydraulic rod 13 is controlled to retract, so that the movable mold base 14 rises, the guide column 16 disengages from the guide groove 17, and then the U-shaped tube can be removed, avoiding the problem that the surface of the model is too close to the inner wall of the mold, resulting in no gap between the model and the mold, making the model demolding very inconvenient.

[0022] The outer end of the casting hole 18 of the embodiment of the utility model can be arranged on one side of the movable mold 15, and the inner end of the casting hole 18 is preferably arranged on the upper side of the mold cavity 4. The outer end of the casting hole 18 is arranged higher than the inner end thereof, and under the action of gravity, it is convenient to inject molten metal into the mold cavity 4 through the casting hole 18. The casting hole 18 is preferably arranged obliquely, and the inclination angle of the casting hole 18 is preferably 15°-30°.

[0023] As a preferred embodiment, the movable mold 15 is provided with a vent 20 connected to the mold cavity 4, and the gas in the mold cavity 4 can be discharged through the vent 20. The vent 20 can also be arranged at an angle, and the inner ends of the vent 20 and the casting hole 18 are preferably arranged on the upper sides of both ends of the mold cavity 4.

[0024] In order to facilitate the sliding connection between the sliding plate 21 and the base 2, a slide rail 24 is preferably provided at the bottom of the sliding plate 21, and a slide groove matching the slide rail 24 is provided on the upper side of the base 2. When demolding, the sliding plate 21 can be pulled out and the formed U-shaped tube can be taken out from the fixed mold 23 without the need for the staff to bend over to take it, thereby improving the safety factor. A second hydraulic cylinder can also be fixedly connected between the rear side of the sliding plate 21 and the base 2, and the sliding plate 21 can be pushed to move on the base 2 by the second hydraulic cylinder.

[0025] Preferably, the ultrasonic vibration plate, ultrasonic generator and hydraulic rod mentioned above are all mature existing technologies, so they are not described here in detail, and their models and specifications can be selected according to actual conditions.

[0026] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0027] The technical scope of the present invention is not limited to the contents described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical concept of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A U-shaped tube mold that is easy to demould, comprising a top plate (1) and a base (2), characterized in that: The top plate (1) and the base (2) are fixedly connected via a fixed beam (3); a first hydraulic cylinder (13) is fixedly connected to the lower side of the top plate (1); a movable die seat (14) is fixedly connected to the lower end of the first hydraulic cylinder (13); a movable die seat (15) is fixedly connected to the lower side of the movable die seat (14); a plurality of guide columns (16) are provided on the lower side of the movable die seat (15); a sliding plate (21) is slidably provided on the upper side of the base (2); a fixed die seat (22) is fixedly connected to the sliding plate (21); a fixed die seat (22) is fixedly connected to the upper side of the fixed die seat (22); (23), a mold cavity (4) is provided in the middle of the movable mold (15) and the fixed mold (23), the mold cavities (4) of the movable mold (15) and the fixed mold (23) are symmetrically arranged up and down, and the cross-section of the mold cavities (4) is semicircular, the upper side of the fixed mold (23) is provided with a guide groove (17) matching with the guide column (16), the surface of the movable mold (15) is provided with a casting hole (18) connected with the mold cavity (4), and the outer side of the fixed mold is fixedly connected with an ultrasonic vibration plate (11), and the ultrasonic vibration plate (11) is connected to the ultrasonic generator on the fixed mold (23).

2. The U-shaped tube mold that is easy to demould according to claim 1, characterized in that: The outer end of the casting hole (18) is arranged on one side of the movable mold (15), and the inner end thereof is arranged on the upper side of the mold cavity (4), and the outer end of the casting hole (18) is arranged higher than the inner end thereof.

3. The easy-to-release U-shaped tube mold according to claim 2, characterized in that: The casting hole (18) is arranged tilted, and its tilt angle is 15°-30°.

4. The easy-to-release U-shaped tube mold according to claim 1, characterized in that: The lower end of the guide column (16) is in a cone shape.

5. The easy-to-release U-shaped tube mold according to claim 1, characterized in that: The movable mold (15) is provided with an exhaust hole (20) which is in communication with the mold cavity (4).

6. The easy-to-release U-shaped tube mold according to claim 1, characterized in that: The bottom of the sliding plate (21) is provided with a sliding rail (24), and the upper side of the base (2) is provided with a sliding groove that cooperates with the sliding rail.

7. The easy-to-release U-shaped tube mold according to claim 1, characterized in that: A second hydraulic cylinder is connected between the sliding plate (21) and the base (2).

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