Secondary demolding mechanism of thermal forming mold

Abstract

The utility model discloses a secondary demolding mechanism of a thermal forming mold, which comprises an upper mold and a lower mold, an upper mold female cutter is fixedly mounted below the upper mold, a lower male cutter is mounted at the upper end of the lower mold, a push plate is arranged below the lower mold, an ejector rod is fixedly mounted on the push plate, and the ejector rod penetrates through the lower mold; the button position cavity is fixedly arranged above the lower die; the ejector pipe is fixedly installed on the outer side of the ejector rod, the outer side of the ejector pipe is sleeved with a round nut, a gasket is arranged below the round nut, the outer side of the ejector pipe is sleeved with the gasket, meanwhile, the gasket and the push plate form an elastic lifting structure, and a secondary ejector block is fixedly installed at the upper end of the ejector rod; the guide pipe is fixedly mounted on the lower die; and the convex mold cavity also serves as a primary ejection block and is arranged on the inner side of the buckling position mold cavity. The secondary demolding mechanism of the thermal forming mold is provided with the convex cavity serving as the primary ejection block and the secondary ejection block, secondary demolding of a product can be achieved, and deformation of the product in the demolding process is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of thermoforming molds, in particular to a secondary demoulding mechanism for thermoforming molds. Background Art

[0002] Thermoforming molds mainly realize the processing of the shape of the object by changing the physical state of the molding material. After the product is formed, a demoulding mechanism is needed to eject and demould the product. However, the existing thermoforming mold demoulding mechanism still has some shortcomings.

[0003] The top end of the piston rod is fixedly provided with a bottom end of the piston rod, and the top end of the piston rod is fixedly provided with a bottom end of the piston rod, and the top end of the piston rod is fixedly provided with a piston rod.

[0004] Thermoformed products have deep undercuts and protrusions, but during use, a single ejector is used for demolding. After the side net of the molding mold is separated from the product, the molded product will adhere to the cavity, and direct ejection will cause product deformation. Utility Model Content

[0005] The utility model aims to provide a secondary demoulding mechanism for a thermoforming mold, so as to solve the problem that the demoulding mechanism for thermoforming molds in the current market is prone to cause product deformation during the demoulding process, as mentioned in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a secondary demoulding mechanism of a thermoforming mold, comprising an upper mold and a lower mold, wherein an upper mold female knife is fixedly installed below the upper mold, and a lower male knife is installed at the upper end of the lower mold, and a push plate is arranged below the lower mold, and a push rod is fixedly installed on the push plate, and the push rod passes through the lower mold to realize demoulding of the product, and a stripping plate is arranged on the outer side of the lower male knife;

[0007] It also includes: a buckle cavity, fixedly installed above the lower mold;

[0008] A jacking pipe is fixedly installed on the outer side of the jacking rod, a round nut is sleeved on the outer side of the jacking pipe, a gasket is arranged below the round nut, and the gasket is sleeved on the outer side of the jacking pipe, and the gasket and the push plate constitute an elastic lifting structure, and a secondary jacking block is fixedly installed on the upper end of the jacking rod;

[0009] The guide tube is fixedly mounted on the lower die;

[0010] The convex cavity and primary ejector block are arranged on the inner side of the buckle cavity, and the convex cavity and primary ejector block are arranged on the inner side of the secondary ejector block.

[0011] Preferably, the upper die female knife and the lower male knife are arranged correspondingly up and down, and the blades of the upper die female knife and the lower male knife cut the product and the side net.

[0012] By adopting the above technical solution, when the product is formed, the upper die female knife and the lower male knife are controlled to move relative to each other. At this time, the two can cut the product and the side net to achieve neat cutting of the product and the side net.

[0013] Preferably, the jacking pipe and the conduit are nested, and the upper end of the jacking pipe passes through the buckle cavity, and the jacking pipe and the conduit form a lifting structure.

[0014] By adopting the above technical solution, when the jacking pipe is driven to rise by the push plate, the guide tube can effectively guide the jacking pipe, thereby ensuring the lifting and lowering stability of the jacking pipe.

[0015] Preferably, a compression spring is connected between the gasket and the push plate, and the gasket and the round nut are coaxially arranged, and the outer diameter of the round nut is larger than the inner diameter of the catheter.

[0016] By adopting the above technical solution, when the push plate moves upward, it can drive the gasket, the round nut and the jacking pipe to move upward synchronously through the compression spring, and the conduit can block the round nut, thereby limiting the upward movement height of the jacking pipe.

[0017] Preferably, the upper end of the jacking pipe is fitted to the lower side of the convex cavity and primary jacking block, and the jacking pipe is fitted to the inner side of the conduit.

[0018] By adopting the above technical solution, when the jacking pipe moves upward, the jacking pipe can support the upper convex cavity and serve as a primary ejector block to achieve demoulding.

[0019] Preferably, the ejector rod and ejector pipe constitute a lifting structure, and the secondary ejector block fixedly connected to the upper end of the ejector rod is embedded and installed on the inner side of the convex cavity which also serves as the primary ejector block.

[0020] By adopting the above technical solution, when the push plate moves upward, it can drive the secondary ejector block to move upward through the ejector rod, and when the convex cavity and primary ejector block stops moving upward, the secondary ejector block can continue to move upward to achieve complete demoulding.

[0021] Compared with the prior art, the beneficial effect of the utility model is that the secondary demolding mechanism of the thermoforming mold is provided with a convex cavity serving as a primary ejector block and a secondary ejector block. After the product is formed, the mold is controlled to open. At this time, the push plate will drive the ejector rod and the ejector tube to rise and fall synchronously, so that the convex cavity serving as the primary ejector block and the secondary ejector block move synchronously, thereby realizing one-time demolding of the product. When the ejector tube is blocked, the ejector rod will drive the secondary ejector block to continue to move, thereby ejecting the product from the inner side of the convex cavity serving as the primary ejector block, thereby realizing secondary demolding, and effectively avoiding product deformation caused by a single direct ejection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0023] Figure 2 This is a side view of the structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the connection structure between the top rod and the top pipe of the utility model;

[0026] Figure 5 This is a schematic diagram of the installation structure of the convex cavity and primary ejector block of the utility model.

[0027] In the figure: 1. upper die; 2. lower die; 3. upper die female knife; 4. lower male knife; 5. buckle cavity; 6. push plate; 7. ejector rod; 8. ejector tube; 9. round nut; 901, gasket; 10. compression spring; 11. guide tube; 12. convex cavity and primary ejector block; 13. secondary ejector block; 14. stripper plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-Figure 5 The utility model provides a technical solution: a secondary demoulding mechanism of a thermoforming mold, comprising an upper mold 1 and a lower mold 2, and an upper mold female knife 3 is fixedly installed below the upper mold 1, and a lower male knife 4 is installed at the upper end of the lower mold 2, and a push plate 6 is arranged below the lower mold 2, and a push rod 7 is fixedly installed on the push plate 6, and the push rod 7 penetrates the lower mold 2 to realize demoulding of the product, and a stripping plate 14 is arranged on the outer side of the lower male knife 4;

[0030] It also includes: a buckle cavity 5, which is fixedly installed above the lower mold 2;

[0031] The jacking pipe 8 is fixedly installed on the outer side of the jacking rod 7. The outer side of the jacking pipe 8 is sleeved with a round nut 9, and a gasket 901 is arranged below the round nut 9. The gasket 901 is sleeved on the outer side of the jacking pipe 8. At the same time, the gasket 901 and the push plate 6 constitute an elastic lifting structure. The upper end of the jacking rod 7 is fixedly installed with a secondary jacking block 13.

[0032] The guide tube 11 is fixedly mounted on the lower mold 2;

[0033] The convex cavity and primary ejector block 12 is arranged on the inner side of the buckle cavity 5 , and the convex cavity and primary ejector block 12 is arranged on the inner side of the secondary ejector block 13 .

[0034] The upper die female knife 3 and the lower male knife 4 are arranged correspondingly up and down, and the blades of the upper die female knife 3 and the lower male knife 4 cut the product and the side net.

[0035] The jacking pipe 8 and the conduit 11 are nested, and the upper end of the jacking pipe 8 penetrates the buckle cavity 5, and the jacking pipe 8 and the conduit 11 constitute a lifting structure. A compression spring 10 is connected between the gasket 901 and the push plate 6, and the gasket 901 and the round nut 9 are coaxially arranged, and the outer diameter of the round nut 9 is greater than the inner diameter of the conduit 11. The upper end of the jacking pipe 8 fits under the support of the convex cavity and the primary ejection block 12, and the jacking pipe 8 fits the inner side of the conduit 11.

[0036] like Figure 1-Figure 3 As shown, after the product is formed, the upper die female knife 3 and the lower male knife 4 are controlled to move relative to each other to achieve cutting of the product and the side net, thereby facilitating the subsequent demoulding of the product, and then the upper die 1 and the lower die 2 are controlled to separate. At this time, the push plate 6 will move upward under the action of the machine power, so that the push plate 6 drives the round nut 9 and the ejector pipe 8 to move through the compression spring 10, and the ejector pipe 8 will drive the ejector pipe 8 to move. At the same time, the ejector rod 7 will move upward synchronously and push the secondary ejector block 13. At this time, the convex cavity and the primary ejector block 12 and the secondary ejector block 13 move synchronously, so that the product is ejected from the buckle cavity 5.

[0037] The ejector rod 7 and the ejector pipe 8 form a lifting structure, and the secondary ejector block 13 fixedly connected to the upper end of the ejector rod 7 is embedded and installed on the inner side of the convex cavity and primary ejector block 12.

[0038] like Figure 3-Figure 5 As shown, as the ejector tube 8 moves upward, when the round nut 9 contacts the conduit 11, the ejector tube 8 can be prevented from continuing to move. At this time, the push plate 6 can drive the ejector rod 7 to continue to move, so that the secondary ejector block 13 can eject the product from the inner side of the convex cavity and the primary ejector block 12, realizing secondary complete demoulding and effectively avoiding product deformation.

[0039] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A secondary demoulding mechanism for a thermoforming mold, comprising an upper mold (1) and a lower mold (2), wherein an upper mold female knife (3) is fixedly installed below the upper mold (1), and a lower male knife (4) is installed at the upper end of the lower mold (2), and a push plate (6) is arranged below the lower mold (2), and a push rod (7) is fixedly installed on the push plate (6), and the push rod (7) passes through the lower mold (2) to realize demoulding of the product, and a stripping plate (14) is arranged on the outer side of the lower male knife (4); It is characterized in that Also includes: The buckle cavity (5) is fixedly installed above the lower mold (2); A jacking pipe (8) is fixedly mounted on the outer side of the jacking rod (7); a round nut (9) is sleeved on the outer side of the jacking pipe (8); a gasket (901) is arranged below the round nut (9); and the gasket (901) is sleeved on the outer side of the jacking pipe (8); the gasket (901) and the push plate (6) form an elastic lifting structure; and a secondary jacking block (13) is fixedly mounted on the upper end of the jacking rod (7); A guide tube (11) is fixedly mounted on the lower mold (2); The convex cavity and primary ejector block (12) is arranged on the inner side of the buckle cavity (5), and the convex cavity and primary ejector block (12) is arranged on the inner side of the secondary ejector block (13).

2. The secondary demoulding mechanism of the thermoforming mold according to claim 1, characterized in that: The upper die female knife (3) and the lower male knife (4) are arranged correspondingly up and down, and the blades of the upper die female knife (3) and the lower male knife (4) cut the product and the side net.

3. The secondary demoulding mechanism of the thermoforming mold according to claim 1, characterized in that: The jacking pipe (8) and the conduit (11) are nested, and the upper end of the jacking pipe (8) passes through the buckle cavity (5), and the jacking pipe (8) and the conduit (11) form a lifting structure.

4. The secondary demoulding mechanism of the thermoforming mold according to claim 1, characterized in that: A compression spring (10) is connected between the gasket (901) and the push plate (6), and the gasket (901) and the round nut (9) are coaxially arranged, and the outer diameter of the round nut (9) is greater than the inner diameter of the conduit (11).

5. The secondary demoulding mechanism of the thermoforming mold according to claim 4, characterized in that: The upper end of the jacking pipe (8) is fitted to the lower side of the convex cavity and primary jacking block (12), and the jacking pipe (8) is fitted to the inner side of the conduit (11).

6. The secondary demoulding mechanism of the thermoforming mold according to claim 1, characterized in that: The push rod (7) and the push pipe (8) form a lifting structure, and the secondary push block (13) fixedly connected to the upper end of the push rod (7) is embedded and installed on the inner side of the convex cavity and the primary push block (12).

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