Die

Abstract

The utility model provides a die and belongs to the technical field of machinery. The problem of how to ensure the demolding convenience on the premise of ensuring the integrity of the composite material mold is solved. The mold comprises a fixed mold body and a movable mold body, a cavity is formed in the fixed mold body, an opening is formed in the upper end of the fixed mold body, the movable mold body covers the cavity, a carrying plate is arranged in the cavity in the horizontal direction, a telescopic push rod is arranged at the bottom of the fixed mold body in the vertical direction, a positioning groove is formed in the bottom face of the carrying plate, and the push rod extends into the positioning groove and abuts against the bottom wall of the positioning groove. According to the mold, the demolding convenience can be ensured on the premise of ensuring the integrity of the composite material mold.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a mould. Background Art

[0002] In the prior art, ceramic products are often manufactured using composite material molds, and the composite material molds are generally manufactured by extrusion molding using the molds.

[0003] Specifically, the composite material mold is supported by a number of composite material rods that are formed by twisting glass fibers and coated with resin on the outside. The above-mentioned hot pressing mold for producing the composite material mold includes a movable mold and a fixed mold with a cavity inside. Before mold closing, the contractor needs to arrange a number of composite material rods in a side-by-side manner in a frame and apply resin glue. After the glue cools, the composite material rods are bonded to form a composite layer, and then resin glue is applied to the composite layer again. Then, multiple composite layers are made in the above manner and stacked in sequence. After the resin glue solidifies, the composite layers are connected into a whole, and then placed in the cavity by a robot. After mold closing, the high pressure inside the mold forms it into a composite material mold, and finally the composite material mold is taken out of the cavity by a robot.

[0004] However, the actual production of the composite material is relatively inconvenient, especially when the composite material mold is taken out, it is difficult for the robot to grasp the fulcrum and it is not easy to clamp the composite material mold out. At the same time, applying too much stress can easily lead to irreversible deformation of the outer wall of the composite material mold, resulting in the scrapping of the composite material mold. In addition, the prior art also uses a crane to lift the parts out, but the rope binding is also very inconvenient. Summary of the invention

[0005] The purpose of the utility model is to propose a mold in view of the above problems in the existing technology. The technical problem to be solved by the utility model is: how to ensure the convenience of demoulding under the premise of ensuring the integrity of the composite material mold.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a mold, including a fixed mold with a cavity inside and an open upper end, and a movable mold covering the cavity, characterized in that a carrier plate is provided in the horizontal direction inside the cavity, a retractable push rod is provided in the vertical direction at the bottom of the fixed mold, a positioning groove is provided on the bottom surface of the carrier plate, the push rod extends into the positioning groove and abuts against the bottom wall of the positioning groove.

[0007] The working principle of this mold is: the push rod is driven by the cylinder to make the carrier plate rise to the highest point in the cavity. In this state, the worker manually or by a robot arranges the rod-shaped composite material on the carrier plate, and then the push rod is driven by the cylinder to make the carrier plate move down a distance in the cavity, and then the second layer of composite material is arranged on the previous layer of composite material, and then the above operation is repeated until the cavity is filled with composite materials. In this process, resin glue is set between every two adjacent layers of composite materials by filling or smearing. After the cavity is sealed by closing the movable mold with the fixed mold, a certain pressure is applied by the movable mold to pressurize each layer of composite materials. Thereby, several layers of composite materials are pressurized to form a complete composite material mold. After that, the push rod is driven by the cylinder to raise the carrier plate to the highest point in the cavity. In this state, the composite material mold formed in the cavity rises upward under the push of the carrier plate until the composite material mold is completely removed from the cavity, and then the composite material mold is lifted out by the crane, thereby ensuring the structural integrity of the composite material mold and the convenience of demoulding. In addition, during the above operation, the push rod and the carrier plate are engaged with the groove wall of the positioning groove due to the presence of the positioning groove, thereby making the connection between the push rod and the carrier plate stable, thereby ensuring that the lifting and lowering of the carrier plate is more stable.

[0008] In the above mold, the positioning groove is provided at the center of the bottom surface of the carrier plate, so as to ensure that the carrier plate is stably and evenly stressed in the circumferential direction and avoid the circumferential edge of the carrier plate from getting stuck with the cavity wall during the lifting process.

[0009] In the above-mentioned mold, the movable mold includes a plate body and an extrusion part integrally formed on the bottom surface of the plate body, and when the movable mold is molded with the fixed mold, the extrusion part extends into the cavity from the cavity opening. The existence of the extrusion part can ensure that after the movable mold is molded with the fixed mold, the extrusion part can extend into the cavity to give sufficient extrusion force to the composite material, thereby ensuring that the structural strength of the composite material mold formed meets the composite requirements.

[0010] In the above-mentioned mold, the cavity opening of the mold cavity is provided with a guide surface inclined outward along the circumferential direction. The guide surface can guide the extrusion part on the fixed mold when the movable mold and the fixed mold are closed, so as to ensure the convenience of closing the mold.

[0011] In the above-mentioned mold, a heater is connected to at least one outer wall of the fixed mold, which helps to heat the fixed mold to prevent the coated or filled resin glue from solidifying quickly.

[0012] In the above-mentioned mold, the circumferential inner wall of the cavity is coated with an anti-sticking material. Specifically, the anti-sticking material is Teflon, which can prevent the composite material mold from sticking to the inner wall of the cavity during the demoulding process.

[0013] Compared with the existing technology, this mold has the following advantages:

[0014] The composite material is carried by a carrier plate, and the connecting rod is driven by a cylinder to realize the lifting of the carrier plate in the cavity of the fixed mold. Before mold closing, the push rod is driven by the cylinder so that the push rod cooperates with the wall of the positioning groove on the carrier plate to realize the lifting of the carrier plate, which is convenient for workers to place materials in the cavity. At the same time, after molding is completed, the push rod can also be driven by the cylinder so that the push rod cooperates with the wall of the positioning groove on the carrier plate to realize the lifting of the carrier plate, so as to completely eject the molded composite material mold, thereby ensuring the structural integrity and demolding convenience of the composite material mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a cross-sectional view of the mold in the open mold state.

[0016] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle.

[0017] Figure 3 yes Figure 1 A partial enlarged view of point B in the middle.

[0018] In the figure, 1, fixed mold; 11, cavity; 111, carrier plate; 1111, positioning groove; 112, guide surface; 12, push rod; 13, heater; 2, movable mold; 21, plate body; 22, extrusion part. DETAILED DESCRIPTION

[0019] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0020] like Figure 1-3 As shown, the mold includes a movable mold 2 and a fixed mold 1. The fixed mold 1 is in a cubic shape and has a cubic fixed mold 11 inside. The movable mold 2 includes a square plate body 21 and an extrusion portion 22 integrally formed on the bottom surface of the plate body 21. The extrusion portion 22 is quadrilateral and its shape and size are adapted to the cavity of the fixed mold 11. The top of the fixed mold 1 is located at the cavity of the fixed mold 11 and is provided with a guide surface 112 arranged around the fixed mold 11 and inclined outward.

[0021] like Figure 1-3As shown, a carrier plate 111 is movably connected in the horizontal direction in the fixed mold 11, a positioning groove 1111 is opened at the center of the bottom surface of the carrier plate 111, and a clearance opening is opened at the bottom of the fixed mold 1. The mold also includes a push rod 12, which is inserted into the clearance opening. One end of the push rod 12 is connected to the driving end of a driving device (which can be a cylinder, or a push rod motor or a hydraulic cylinder) subsequently installed under the fixed mold 1, and the other end is embedded in the positioning groove 1111 and clamped with the circumferential groove wall of the positioning groove 1111. Under the action of the driving device The push rod 12 can move up and down to realize the lifting and lowering of the carrier plate 111 in the fixed mold 11. In addition, a heater 13 is provided on the outer wall of the fixed mold 1. The heater 13 is a plate heater 13 already available in the prior art. As a specific solution, the heater 13 can be installed on one side of the outer wall of the fixed mold 1. As an alternative solution, the heater 13 can also be installed on the circumferential outer wall of the fixed mold 1. Secondly, an anti-sticking coating is also applied on the circumferential inner wall of the fixed mold 11, and the anti-sticking coating is specifically Teflon.

[0022] Operation principle: In the mold opening state, the worker starts the driving device, which cooperates with the push rod 12 to push the carrier plate 111 to the highest point of the fixed mold 11, and then arranges a plurality of composite material rods arranged in parallel on the carrier plate 111, and then applies a layer of resin glue on each composite material rod to form a composite material layer for each composite material rod, and then the worker starts the driving device again to move the carrier plate 111 down a distance, and then forms several layers of composite material layers in the fixed mold 11 in the same way as above until the fixed mold 11 is filled, and then the movable mold 2 and the fixed mold 1 are molded together, so that the extrusion part 22 of the movable mold 2 presses the uppermost composite material layer, and at the same time, the heater 13 works to heat the fixed mold 1, and under the action of high temperature and high pressure, the various layers of composite material layers in the fixed mold 11 are formed into an integrated composite material mold with the cooperation of the resin glue, and after the composite material mold is fully cooled, the worker starts the driving device, which cooperates with the push rod 12 to push the carrier plate 111 to the highest point of the fixed mold 11, so that the composite material mold is ejected, and the composite material mold can be lifted out by the crane.

[0023] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0024] Although the terminology such as fixed mold 1, cavity 11, carrier plate 111, positioning groove 1111, guide surface 112, push rod 12, heater 13, movable mold 2, plate body 21, extrusion part 22 is used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the utility model; interpreting them as any additional limitation is contrary to the spirit of the utility model.

Claims

1. A mold, comprising a fixed mold (1) having a mold cavity (11) inside and an open upper end, and a movable mold (2) covering the mold cavity (11), characterized in that: A carrier plate (111) is horizontally arranged in the mold cavity (11), a retractable push rod (12) is vertically arranged at the bottom of the fixed mold (1), a positioning groove (1111) is provided on the bottom surface of the carrier plate (111), and the push rod (12) extends into the positioning groove (1111) and abuts against the bottom wall of the positioning groove (1111).

2. The mold according to claim 1, characterized in that: The positioning groove (1111) is arranged at the center of the bottom surface of the carrier plate (111).

3. The mold according to claim 1 or 2, characterized in that: The movable mold (2) comprises a plate body (21) and an extrusion portion (22) integrally formed on the bottom surface of the plate body (21); when the movable mold (2) and the fixed mold (1) are molded together, the extrusion portion (22) extends into the cavity (11) through the cavity opening.

4. The mold according to claim 3, characterized in that: The cavity opening of the mold cavity (11) is provided with a guide surface (112) inclined outwards along the circumferential direction.

5. The mold according to claim 4, characterized in that: A heater (13) is connected to at least one outer wall of the fixed mold (1).

6. The mold according to claim 3, characterized in that: The circumferential inner wall of the cavity (11) is coated with an anti-sticking material.

Images