Plastic stool forming and demolding device

Abstract

The utility model relates to the technical field of plastic stool demolding, and discloses a plastic stool forming and demolding device which comprises a lower mold, a mold assembly is arranged on the top of the lower mold, a spring column is arranged on the inner side of the top of the mold assembly, a top plate is arranged on the top of the spring column, an upper mold is arranged above the lower mold, and the upper mold is arranged above the upper mold. Second power columns are arranged on the periphery of the top of the upper mold, an outer injection molding plate is arranged on the top of the inner side of the upper mold, an inner injection molding plate is arranged in the outer injection molding plate, a connecting column is arranged on the top of the inner injection molding plate, and a raw material connecting pipe is arranged on the top of the connecting column. The mold has the beneficial effects that elastic force is provided for the top plate through the four spring columns, and when the outer injection molding plate is separated from the top plate, the spring columns enable the top plate to move upwards, so that a plastic stool at the top of the top plate is automatically separated from the mold assembly for demolding, the production procedures of the plastic stool are reduced, the labor intensity of workers is reduced, and the production efficiency is improved. And the use comfort of workers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic stool demoulding, and more specifically to a plastic stool molding demoulding device. Background Art

[0002] Plastic stools are commonly used items in life, such as plastic stools, drinking water bottles, fast food boxes, water pipes, etc. Their molding methods are all plastic molding, which is to make plastics in various forms (powders, granules, solutions and dispersions) into products or blanks of desired shapes. The molding process is film bonding, injection molding, pressure holding, cooling, and demolding. However, in the molding and demolding process of the plastic stool, a bulge is left in the middle of the plastic stool, so that the staff can manually demold the plastic stool from the mold. However, after the plastic stool is demolded, the staff still needs to remove the bulge, which increases the production process of the plastic stool, and then increases the labor intensity of the staff, which is not convenient for the staff to use. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the utility model provides a plastic stool molding and demoulding device to solve the problems existing in the above-mentioned background technology.

[0004] The utility model provides the following technical solutions: a plastic stool molding demoulding device, comprising a lower mold, a mold assembly is arranged on the top of the lower mold, a spring column is arranged on the inner side of the top of the mold assembly, a top plate is arranged on the top of the spring column, an upper mold is arranged above the lower mold, a No. 2 power column is arranged around the top of the upper mold, an outer injection molding plate is arranged on the inner top of the upper mold, an inner injection molding plate is arranged inside the outer injection molding plate, a connecting column is arranged on the top of the inner injection molding plate, a raw material connecting pipe is arranged on the top of the connecting column, elastic force is provided to the top plate through the spring column at the bottom of the top plate, when the outer injection molding plate is separated from the top plate, the spring column moves the top plate upward, and then the plastic stool on the top of the top plate is automatically separated from the mold assembly and demoulded, thereby reducing the labor intensity of the staff and increasing the comfort of the staff;

[0005] Furthermore, a rectangular knife is arranged around the outer side of the inner injection molding plate, and a hot melt knife is arranged around the outer side of the outer injection molding plate. The rectangular knife and the hot melt knife are fitted together to facilitate the inner and outer injection molding plates to stop injection separately.

[0006] Furthermore, a heating column is provided inside the hot melt knife, and connecting wires are provided on both sides of the hot melt knife. The heating column is used to heat the blade of the hot melt knife, thereby facilitating the hot melt knife to cut the plastic adhered to its outer side and preventing the plastic stool from sticking to the hot melt knife.

[0007] Furthermore, the number of the spring columns is four, and the four spring columns are evenly distributed on the inner side of the top of the mold assembly. The four spring columns allow the top plate to rise evenly, thereby preventing the plastic stool on the top of the top plate from shifting and causing demolding damage, thereby increasing the stability and safety of the plastic stool demolding.

[0008] Furthermore, guide columns are provided around the top of the lower mold, a connecting plate is provided on the outer side of the raw material connecting tube, and a No. 2 power column is provided around the top of the connecting plate. The guide columns are used to guide the closing of the lower mold and the upper mold, and the No. 2 power column is used to control the up and down movement of the raw material connecting tube and the inner injection plate at the bottom thereof, thereby controlling the injection time.

[0009] Compared with the prior art, the beneficial effect of the present invention is that four spring columns are used to provide elastic force to the top plate. When the outer injection molding plate is separated from the top plate, the spring columns move the top plate upward, thereby automatically separating the plastic stool on the top of the top plate from the mold assembly and demolding the stool, thereby reducing the production process of the plastic stool, reducing the labor intensity of the staff, and increasing the comfort of use for the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0011] Figure 2 It is an exploded schematic diagram of the lower mold structure of the utility model.

[0012] Figure 3 It is a cross-sectional view of the upper mold structure of the utility model.

[0013] Figure 4 It is an exploded schematic diagram of the inner injection plate structure of the utility model.

[0014] Figure 5 This is a cross-sectional view of the hot melt knife structure of the utility model.

[0015] The accompanying drawings are marked as follows: 1. lower mold; 2. guide column; 3. mold assembly; 4. spring column; 5. top plate; 6. upper mold; 7. power column No. 1; 8. outer injection molding plate; 9. hot melt knife; 10. connecting plate; 11. power column No. 2; 12. raw material connecting pipe; 13. connecting column; 14. inner injection molding plate; 15. rectangular knife; 16. heating column; 17. connecting wire. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solution of the utility model in conjunction with the drawings in the utility model. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The plastic stool molding and demolding device involved in the utility model is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0017] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings.

[0018] Embodiment 1

[0019] Reference Figure 1-5 , a plastic stool molding demolding device, firstly, the heating column 16 is installed around the inside of the hot melt knife 9, then the outer injection molding plate 8 is installed around the outside of the hot melt knife 9, and multiple hot melt knives 9 are connected by connecting wires 17, and then the rectangular knife 15 is installed around the outside of the inner injection molding plate 14, and then the connecting column 13 is installed on the top of the inner injection molding plate 14, and then the raw material connecting tube 12 is installed on the top of the connecting column 13, and then the connecting plate 10 is installed on the outside of the raw material connecting tube 12, and then the second power column 11 is installed around the top of the connecting plate 10, and then the outer injection molding plate 8 is installed on the top of the inner side of the upper mold 6, and then the inner injection molding plate 14 is installed inside the outer injection molding plate 8, and then the No. 1 power column 7 is installed around the top of the upper mold 6, and then the guide column 2 is installed around the top of the lower mold 1, and then the mold assembly 3 is installed in the middle of the lower mold 1, and then the spring column 4 is installed on the top of the mold assembly 3, and then the top plate 5 is installed on the top of the spring column 4, and finally the upper mold 6 is installed above the lower mold 1.

[0020] The working principle of the utility model is as follows: the staff connects the No. 1 power column 7 and the No. 2 power column 11 to the driving motor respectively, and connects the feed pipe to the raw material connecting pipe 12, and then moves the upper mold 6 to the lower mold 1 through the No. 2 power column 11 until the lower mold 1 and the upper mold 6 are tightly fitted together. At this time, the bottom of the outer injection molding plate 8 at the top inside the upper mold 6 will squeeze the top plate 5 at the top of the mold assembly 3 until the top plate 5 and the mold assembly 3 are tightly fitted together, and then control the No. 2 power column 11 to move the connecting column 13 and the inner injection molding plate 14 at its bottom downward to the bottom of the outer injection molding plate 8. At this time, the rectangular knife 15 on the outside of the inner injection molding plate 14 will be aligned with the hot melt knife 9 on the outside of the outer injection molding plate 8, so that the plastic entering from the raw material connecting pipe 12 passes through the rectangular knife 15 and the hot melt knife 9 in turn into the lower mold 1 and the upper mold 6 for injection molding, and wait for it to After the intermediate pressure is stable, the No. 2 power column 11 is controlled to drive the inner injection molding plate 14 to move upward, so that the outer injection molding plate 8 and the inner injection molding plate 14 are staggered with each other, and the injection molding is stopped. After the plastic stool between the lower mold 1 and the upper mold 6 is cooled, the No. 1 power column 7 is controlled to drive the upper mold 6 and the outer injection molding plate 8 to move upward. At this time, the heating column 16 inside the hot melt knife 9 heats the blade thereof, thereby cutting the plastic adhered to its outer side to prevent the plastic stool from sticking to the hot melt knife 9, causing the plastic stool to be damaged during the demolding process, thereby increasing the safety and stability of the plastic stool demolding; at the same time, when the outer injection molding plate 8 is separated from the top plate 5, the spring column 4 at the bottom of the top plate 5 provides elastic force to it, thereby moving the top plate 5 upward, and then the plastic stool on the top of the top plate 5 is automatically separated from the mold assembly 3 for demolding, thereby reducing the labor intensity of the staff and increasing the comfort of the staff.

[0021] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A plastic stool molding demoulding device, comprising a lower mold (1), characterized in that: A mold assembly (3) is provided on the top of the lower mold (1), a spring column (4) is provided on the inner side of the top of the mold assembly (3), a top plate (5) is provided on the top of the spring column (4), an upper mold (6) is provided above the lower mold (1), a second power column (11) is provided around the top of the upper mold (6), an outer injection molding plate (8) is provided on the inner top of the upper mold (6), an inner injection molding plate (14) is provided inside the outer injection molding plate (8), a connecting column (13) is provided on the top of the inner injection molding plate (14), and a raw material connecting pipe (12) is provided on the top of the connecting column (13).

2. A plastic stool molding and demoulding device according to claim 1, characterized in that: A rectangular knife (15) is arranged around the outer side of the inner injection molding plate (14), and a hot melt knife (9) is arranged around the outer side of the outer injection molding plate (8).

3. A plastic stool molding and demoulding device according to claim 2, characterized in that: A heating column (16) is provided inside the hot melt knife (9), and connecting wires (17) are provided on both sides of the hot melt knife (9).

4. A plastic stool molding and demoulding device according to claim 1, characterized in that: The number of the spring columns (4) is four, and the four spring columns (4) are evenly distributed on the inner side of the top of the mold assembly (3).

5. A plastic stool molding and demoulding device according to claim 1, characterized in that: The top of the lower mold (1) is provided with guide columns (2) around the periphery, the outer side of the raw material connecting pipe (12) is provided with a connecting plate (10), and the top of the connecting plate (10) is provided with a second power column (11) around the periphery.

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