Automatic demolding platform for sieve plate

Abstract

The utility model relates to an automatic demolding platform for a sieve plate. The automatic demolding platform comprises a rack, a worktable mounted on the rack and an ejection mechanism for demolding the sieve plate, the workbench comprises a bottom plate and a forming frame fixed to the upper surface of the bottom plate, and the forming frame and the bottom plate are matched to form at least one die cavity station used for forming the sieve plate. And the ejection mechanism comprises an ejection rod which penetrates through the bottom plate and can move up and down to eject the sieve plate formed in the forming cavity, and a driving piece for driving the ejection rod to move up and down. Through the sieve plate demoulding device, the sieve plate can be demoulded conveniently, the working efficiency of sieve plate production is improved, manual demoulding is not needed, and the stability of product quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of sieve plate production, in particular to an automatic demoulding platform for sieve plates. Background Art

[0002] The polyurethane sieve plate is a net-shaped product made of polyurethane as raw material. At present, when producing sieve plates, generally the raw material liquid is poured into a mold for vulcanization molding, and then manually demoulded. Due to the special structure of the sieve plate (with sieve holes densely distributed on it), the sieve plate is firmly embedded in the mold, making the demoulding difficult and the demoulding efficiency extremely low, seriously affecting the production efficiency of sieve plates. Moreover, manual demoulding is very likely to damage the sieve plate and affect the product quality. Therefore, there is an urgent need for an automatic demoulding platform for sieve plates to improve the demoulding efficiency of sieve plates. Content of the Utility Model

[0003] The utility model aims at the deficiencies of the prior art and provides an automatic demoulding platform for sieve plates.

[0004] The utility model is realized through the following technical solutions. An automatic demoulding platform for sieve plates is provided, which includes a frame, a workbench installed on the frame, and an ejecting mechanism for demoulding sieve plates; the workbench includes a bottom plate and a forming frame fixed on the upper surface of the bottom plate. The forming frame and the bottom plate cooperate to form at least one die cavity station for sieve plate forming; the ejecting mechanism includes an ejecting rod that penetrates the bottom plate and can move up and down to eject the sieve plate formed in the forming cavity, and a driving member for driving the ejecting rod to move up and down.

[0005] Preferably, the forming frame is in a cross-shaped structure, and the forming frame and the bottom plate cooperate to form four die cavity stations.

[0006] Preferably, four die cores for forming sieve holes are arranged in each die cavity station, and the four die cores divide the die cavity station into a cross-shaped forming cavity.

[0007] Preferably, on two opposite sides of the forming frame of each die cavity station, there are gaps for placing forming blocks. On the bottom plate corresponding to each gap, there are positioning jacks for positioning the forming blocks, and positioning protrusions for inserting into the positioning jacks are arranged at the bottom of the forming blocks. When the forming blocks are placed in the gaps, the positioning protrusions at their bottoms are inserted into the positioning jacks, and the forming blocks are used for forming the mounting grooves of the sieve plates. Specifically, during forming, a cross-shaped metal reinforcing rib is placed in the forming cavity, and the raw material liquid is poured into the forming cavity for vulcanization molding by heating.

[0008] Preferably, the bottom plate is horizontally fixed on the frame, and heating rods are uniformly installed in the bottom plate. The raw material liquid in the die cavity station is heated and formed by the heating rods.

[0009] Preferably, the forming frame is fixed to the bottom plate by bolts.

[0010] Preferably, a heat-insulating cover for heat preservation is buckled on the workbench.

[0011] Preferably, one side of the heat-insulating cover is hinged to the workbench, and an operating handle is installed on the heat-insulating cover to facilitate opening and closing of the heat-insulating cover.

[0012] Preferably, the driving member is a hydraulic cylinder, the outer cylinder of the hydraulic cylinder is fixed to the fixed plate, and the piston rod of the hydraulic cylinder is fixed to the ejector plate. The fixed plate is fixed to the frame via a vertically arranged guide rod, the guide rod passes through the ejector plate, and the ejector rod is fixed to the ejector plate. During normal molding operation, the top of the ejector rod is on the same horizontal plane as the bottom surface of the base plate. When molding is completed and demolding is required, the hydraulic cylinder piston rod moves upward, causing the ejector rod to move upward to eject the formed screen plate from the molding cavity.

[0013] Preferably, there are four ejector rods and four guide rods. The guide rods can guide the ejector plate to move up and down, and can also fix the fixed plate.

[0014] Preferably, there are four groups of ejection mechanisms, which are installed under the bottom plates of the four mold cavity stations in a one-to-one correspondence.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model has a simple structure. After the sieve plate is formed, it can be pushed out of the molding cavity by the ejector plate, which is convenient for demoulding the sieve plate, saving time and effort, improving the work efficiency of sieve plate production, eliminating the need for manual demoulding, and ensuring the stability of product quality.

[0017] 2. The utility model can vulcanize and form four sieve plates at one time, which greatly improves the production efficiency of the sieve plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a top view of the utility model after the insulation cover is opened;

[0019] Figure 2 This is a schematic diagram of the top view of the workbench of the utility model;

[0020] Figure 3 This is a front view structural diagram of the ejection mechanism and workbench of the utility model;

[0021] Figure 4 This is a bottom view of the structure of the forming block of the utility model;

[0022] As shown in the figure:

[0023] 1. Frame, 2. Bottom plate, 3. Forming frame, 4. Heat preservation cover, 5. Operating handle, 6. Mold core, 7. Forming cavity, 8. Forming block, 9. Notch, 10. Positioning jack, 11. Positioning protrusion, 12. Ejector rod, 13. Oil cylinder, 14. Fixed plate, 15. Ejector plate, 16. Guide rod, 17. Heating rod. Detailed implementation manners

[0024] To clearly illustrate the technical features of this solution, the following elaborates on this solution through specific implementation manners.

[0025] As Figure 1-4 shown, the utility model includes a frame 1, a workbench installed on the frame 1, and an ejecting mechanism for demolding the sieve plate. The workbench includes a bottom plate 2 and a forming frame 3 fixed on the upper surface of the bottom plate 2. The forming frame 3 and the bottom plate 2 cooperate to form at least one mold cavity station for forming the sieve plate. <00CO060>

[0026] In this embodiment, the forming frame 3 is of a cross-shaped structure. The forming frame 3 and the bottom plate 2 cooperate to form four mold cavity stations. The bottom plate 2 is horizontally fixed on the frame 1. Heating rods 17 are uniformly installed in the bottom plate 2, and the raw material liquid in the mold cavity stations is heated and formed by the heating rods 17. The forming frame 3 is fixed to the bottom plate 2 by bolts. A heat preservation cover 4 for heat preservation is buckled on the workbench. In this embodiment, one side edge of the heat preservation cover 4 is hinged to the workbench. To facilitate the opening and buckling of the heat preservation cover 4, an operating handle 5 is installed on the heat preservation cover 4.

[0027] In this embodiment, four mold cores 6 for forming sieve holes are respectively arranged in each mold cavity station. The four mold cores 6 divide the mold cavity station into a cross-shaped forming cavity 7. On two opposite side edges of the forming frame 3 of each mold cavity station, there are notches 9 for placing forming blocks 8. On the bottom plate 2 corresponding to each notch 9, there are positioning jacks 10 for positioning the forming blocks 8. A positioning protrusion 11 for inserting into the positioning jack 10 is arranged at the bottom of the forming block 8. The forming block 8 is placed in the notch 9, and the positioning protrusion 11 at its bottom is inserted into the positioning jack 10. The forming block 8 is used for forming the mounting groove of the sieve plate. During specific forming, a cross-shaped metal reinforcing rib is placed in the forming cavity 7, and the raw material liquid is poured into the forming cavity 7 and formed by heating and vulcanization.

[0028] The ejecting mechanism includes an ejector rod 12 that penetrates the bottom plate 2 and can move up and down to eject the formed sieve plate in the forming cavity 7, and a driving member for driving the ejector rod 12 to move up and down. In this embodiment, the driving member is an oil cylinder 13. The outer cylinder of the oil cylinder 13 is fixed to the fixed plate 14, the piston rod of the oil cylinder 13 is fixed to the ejector plate 15. The fixed plate 14 is fixed to the frame 1 through a vertically arranged guide rod 16. The guide rod 16 penetrates the ejector plate 15, and the ejector rod 12 is fixed to the ejector plate 15.

[0029] During normal molding operation, the top of the ejector rod 12 is on the same horizontal plane as the bottom surface of the base plate 2. When molding is completed and demoulding is required, the piston rod of the oil cylinder 13 moves upward to move the ejector rod 12 upward to eject the molded screen plate from the molding cavity 7. In this embodiment, there are four ejector rods 12 and four guide rods 16. The guide rods 16 can not only guide the up and down movement of the ejector plate 15, but also fix the fixing plate 14.

[0030] In this embodiment, there are four groups of ejection mechanisms, which are installed under the bottom plates 2 of the four cavity stations in a one-to-one correspondence.

[0031] During the specific work, each forming block 8 is placed in the gap 9 accordingly, the raw material liquid is poured into each forming cavity 7, the heating rod 17 is turned on for heating, and the insulation cover 4 is buckled on the workbench. After the sieve plate is formed, the heating rod 17 is stopped for heating and the insulation cover 4 is opened, and the oil cylinder 13 is started to move the ejection rod 12 upward to eject the formed sieve plate, completing the demoulding of the sieve plate.

[0032] The utility model has a simple structure. After the sieve plate is formed, the sieve plate can be pushed out of the forming cavity 7 by the ejector plate 15, which facilitates the demoulding of the sieve plate, saves time and labor, improves the working efficiency of the sieve plate production, eliminates the need for manual demoulding, and ensures the stability of product quality. The utility model can vulcanize and mold four sieve plates at a time, greatly improving the production efficiency of the sieve plate.

[0033] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not depart from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. Screen plate automatic demoulding platform, characterized by: It includes a frame, a workbench installed on the frame and an ejection mechanism for demolding the sieve plate; the workbench includes a base plate and a forming frame fixed on the upper surface of the base plate, and the forming frame and the base plate cooperate to form at least one mold cavity station for forming the sieve plate; the ejection mechanism includes an ejection rod that passes through the base plate and can move up and down to eject the sieve plate formed in the forming cavity, and a driving member that drives the ejection rod to move up and down.

2. The automatic demoulding platform for sieve plates according to claim 1, characterized in that: The forming frame is a field-shaped structure, and the forming frame and the bottom plate cooperate to form four mold cavity stations.

3. The automatic demoulding platform for sieve plates according to claim 2, characterized in that: Each cavity station is provided with four mold cores for forming the sieve holes, and the four mold cores divide the cavity station into a field-shaped forming cavity.

4. The automatic demoulding platform for sieve plates according to claim 3, characterized in that: Notches for placing forming blocks are provided on the two opposite sides of the forming frame of each cavity station, and positioning holes for positioning the forming blocks are provided on the bottom plate corresponding to each notch, and positioning protrusions for inserting into the positioning holes are provided at the bottom of the forming blocks.

5. The automatic demoulding platform for sieve plates according to claim 1, characterized in that: The bottom plate is fixed on the frame horizontally, and heating rods are evenly installed in the bottom plate.

6. The automatic demoulding platform for sieve plates according to claim 1, characterized in that: Snap the insulation cover on the workbench to keep it warm.

7. The automatic demoulding platform for sieve plates according to claim 1, characterized in that: The driving member is an oil cylinder, the outer cylinder of the oil cylinder is fixed to the fixed plate, the piston rod of the oil cylinder is fixed to the ejection plate, the fixed plate is fixed to the frame through a vertically arranged guide rod, the guide rod passes through the ejection plate, and the ejection rod is fixed to the ejection plate.

8. The automatic demoulding platform for sieve plates according to claim 7, characterized in that: There are four ejection rods and four guide rods.

9. The automatic demoulding platform for sieve plates according to claim 1, characterized in that: There are four groups of ejection mechanisms, which are installed under the bottom plates of the four mold cavity stations in a one-to-one correspondence.

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