Demolding mechanism for mold

Abstract

The utility model discloses a demoulding mechanism for a mould, which belongs to the technical field of mould demoulding and comprises two lower moulds which are symmetrically arranged and an upper mould which is arranged at the top ends of the lower moulds, and fastening rods which are used for fixing the upper mould are arranged at the top ends of the lower moulds. A first connecting part and a second connecting part are fixed to the two ends of the two lower molds respectively, a connecting groove is formed in the second connecting part, an elastic frame inserted into the connecting groove in a matched mode is fixed to the side wall of the first connecting part, and a groove is formed in the center of the side wall of the elastic frame; and a clamping part abutting against the side wall of the second connecting part is fixed to the end, penetrating through the connecting groove, of the elastic frame, an extrusion part is fixed to the side wall of the clamping part, and a plurality of through holes corresponding to the fastening rods are formed in the top end of the upper mold in a rectangular array mode. And the situation that the part is damaged in the demolding process is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of mold demoulding, and in particular relates to a demoulding mechanism for a mold. Background Art

[0002] The mold for foaming is a plastic foaming mold. The foaming resin is directly filled into the mold, which is heated and melted to form a gas-liquid saturated solution. A large number of tiny bubble nuclei are formed through nucleation, and the bubble nuclei grow to form foam plastic parts. The foaming mold is easy to adhere to the molded part during use, and it is easy to cause the mold to be damaged if it is used too much during demoulding.

[0003] The patent with application number 202210599425.3 discloses a refrigerator box foaming mold that is easy to demold, including a bottom plate, a bottom mold open box is fixedly provided on the top surface of the bottom plate, a pair of fixed plates are fixedly provided on the bottom surface of the bottom plate, a rotating shaft is provided between the two fixed plates, a driven pulley is fixedly provided at the left end of the rotating shaft, a power assembly is provided between the driven pulley and the bottom plate, a linkage pulley is fixedly provided at the right end of the rotating shaft, a number of cams are evenly sleeved on the rotating shaft, and a demolding assembly is provided between each cam and the bottom plate; a pair of side plates are fixedly provided at both ends of the top surface of the bottom plate, a threaded rod is provided between the two side plates, the left end of the threaded rod is rotatably connected to the side plate on the left, the right end of the threaded rod passes through the side plate on the right, and a transmission pulley is fixedly provided at the right end of the threaded rod.

[0004] The above technical solution utilizes a lifting structure to drive the upper mold at the top to separate, but after separation, the parts are still embedded in the lower mold, and due to the difference between the rotation speed of the cam and the speed at which the upper mold is driven by the lead screw, the mold and parts are easily squeezed during the demolding process, thereby causing damage to the parts. Utility Model Content

[0005] (1) Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a demoulding mechanism for a mold, which aims to solve the technical problem in the prior art that due to the difference between the rotation speed of the cam and the speed at which the upper mold is driven by the lead screw to move, the mold and parts are easily squeezed during the demoulding process, thereby causing damage to the parts.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the utility model provides a demolding mechanism for a mold, which comprises two symmetrically arranged lower molds and an upper mold installed on the top of the lower molds, a fastening rod for fixing the upper mold is installed on the top of the lower molds, and a first connecting part and a second connecting part are fixed at both ends of the two lower molds, respectively, a connecting groove is provided on the second connecting part, an elastic frame that is fitted and inserted in the connecting groove is fixed to the side wall of the first connecting part, a groove is provided at the center position of the side wall of the elastic frame, and a clamping part that abuts against the side wall of the second connecting part is fixed to one end of the elastic frame passing through the connecting groove, and an extrusion part is fixed to the side wall of the clamping part.

[0009] When the demolding mechanism of the mold of the technical solution is used, the mold mechanism is composed of two spliced ​​lower molds and an upper mold. When demolding, after the upper mold is disassembled, the extrusion plate is held by hand to shrink the two ends of the elastic frame in the groove, so that the clamping part is separated from the side wall of the second connecting part, and the two lower molds are disassembled after separation to remove the parts from one of the lower molds, and the bottom plate is slid out of the lower mold after disassembly. The bottom plate drives the parts to be removed from the other lower mold during the movement, which is convenient for splitting the lower mold to demold the parts, improves the convenience of demolding the parts, and reduces the possibility of damage to the parts during the demolding process; a fastening rod is fixed on the top of the lower mold, and the fastening rod is matched and inserted in the through hole of the upper mold during installation, and the spring in the telescopic groove passing through the through hole pushes the connecting block to protrude at the top of the upper mold, and squeezes the upper mold to maintain a tight connection with the two lower molds, and squeezes the connecting block to shrink into the telescopic groove during demolding to separate the upper mold from the two lower molds, thereby improving the convenience of installing and disassembling the upper mold.

[0010] Preferably, a top end of the upper mold is provided with a plurality of through holes corresponding to the fastening rods in a rectangular array, and a forming portion is fixed to the bottom end of the upper mold.

[0011] Furthermore, a molding cavity is provided between the molding part and the lower mold, and a feeding pipe connected to the molding cavity is installed at the top end of the upper mold.

[0012] Furthermore, a bottom plate is embedded in the bottom ends of the two lower molds, and two ends of the bottom plate are respectively fitted and inserted in the two lower molds.

[0013] Furthermore, the fastening rod is inserted into the through hole, and the top end of the fastening rod passes through the through hole and is symmetrically provided with a telescopic groove.

[0014] Furthermore, a spring is embedded in the telescopic slot, and a connecting block in contact with the spring is slidably inserted in the telescopic slot.

[0015] Furthermore, the bottom end of the connecting block is tightly connected to the upper mold, and an anti-slip portion abutting against the inner wall of the telescopic groove is fixed on the connecting block.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model is composed of two lower molds and an upper mold which are spliced ​​together. When demolding, the upper mold is disassembled, and the extrusion plate is held by hand to make the two ends of the elastic frame contract in the groove, so that the clamping part is separated from the side wall of the second connecting part. After separation, the two lower molds are disassembled to remove the parts from one of the lower molds, and after disassembly, the bottom plate is slid out of the lower mold. During the movement, the bottom plate drives the parts to be disassembled from the other lower mold, which is convenient for splitting the lower mold to demold the parts, thereby improving the convenience of demolding the parts and reducing the possibility of damage to the parts during the demolding process.

[0019] A fastening rod is fixed on the top of the lower mold, and the fastening rod is inserted into the through hole of the upper mold during installation, and a spring in the telescopic groove passing through the through hole pushes the connecting block to protrude from the top of the upper mold, and squeezes the upper mold and the two lower molds to maintain a tight connection, and squeezes the connecting block to shrink into the telescopic groove during demoulding to separate the upper mold from the two lower molds, thereby improving the convenience of installing and disassembling the upper mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the lower mold structure of the utility model;

[0023] Figure 3 For the utility model Figure 2 A schematic diagram of the structure enlargement in the middle;

[0024] Figure 4 It is a schematic diagram of the split structure of the fastening rod of the utility model.

[0025] The markings in the accompanying drawings are: 1. lower mold; 2. upper mold; 3. feed pipe; 4. through hole; 5. forming part; 6. first connecting part; 7. connecting groove; 8. second connecting part; 9. fastening rod; 10. bottom plate; 11. clamping part; 12. elastic frame; 13. groove; 14. extrusion part; 15. spring; 16. connecting block; 17. telescopic groove. DETAILED DESCRIPTION

[0026] 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.

[0027] This specific embodiment is a demoulding mechanism for a mold, and its structural schematic diagram is as follows Figure 1 and Figure 3 As shown, the demoulding mechanism for the mold comprises two symmetrically arranged lower molds 1 and an upper mold 2 installed on the top of the lower mold 1, a fastening rod 9 for fixing the upper mold 2 is installed on the top of the lower mold 1, and a first connecting part 6 and a second connecting part 8 are fixed to the two ends of the two lower molds 1, respectively, a connecting groove 7 is provided on the second connecting part 8, an elastic frame 12 which is fitted and inserted in the connecting groove 7 is fixed to the side wall of the first connecting part 6, a groove 13 is provided at the center of the side wall of the elastic frame 12, and the elastic frame 12 passes through A clamping portion 11 abutting against the side wall of the second connecting portion 8 is fixed at one end of the connecting groove 7, and an extrusion portion 14 is fixed to the side wall of the clamping portion 11. The extrusion plate causes the two ends of the elastic frame 12 to shrink in the groove 13, thereby separating the clamping portion 11 from the side wall of the second connecting portion 8. After separation, the two lower molds 1 are disassembled to remove the parts from one of the lower molds 1, and after disassembly, the bottom plate 10 is slid out of the lower mold 1, and the bottom plate 10 drives the parts to be removed from the other lower mold 1 during the movement.

[0028] like Figure 2 and Figure 4 As shown, the top of the upper mold 2 is provided with a plurality of through holes 4 corresponding to the fastening rods 9 in a rectangular array, and a molding portion 5 is fixed to the bottom end of the upper mold 2, a molding cavity is provided between the molding portion 5 and the lower mold 1, a feed pipe 3 connected to the molding cavity is installed at the top of the upper mold 2, and a bottom plate 10 is embedded in the bottom ends of the two lower molds 1, and the two ends of the bottom plate 10 are respectively matched and inserted in the two lower molds 1.

[0029] The fastening rod 9 is inserted in the through hole 4, and the top of the fastening rod 9 passes through the through hole 4 and is symmetrically provided with a telescopic groove 17. A spring 15 is embedded in the telescopic groove 17, and a connecting block 16 in contact with the spring 15 is slidably inserted in the telescopic groove 17. The bottom end of the connecting block 16 is tightly connected to the upper mold 2, and an anti-slip portion abutting against the inner wall of the telescopic groove 17 is fixed on the connecting block 16. The fastening rod 9 is inserted in the through hole 4 of the upper mold 2, and the spring 15 in the telescopic groove 17 passing through the through hole 4 pushes the connecting block 16 to protrude from the top of the upper mold 2, and squeezes the upper mold 2 and the two lower molds 1 to maintain a tight connection. When demolding, the connecting block 16 is squeezed to shrink into the telescopic groove 17 to separate the upper mold 2 from the two lower molds 1.

[0030] The mold demoulding mechanism and the lower mold 1 structure schematic diagram are as follows Figure 2 As shown, its Figure 2 The enlarged schematic diagram of the structure at A is as follows Figure 3 As shown, the schematic diagram of the split structure of the fastening rod 9 is as follows Figure 4 shown.

[0031] Working principle: When using the mold demoulding mechanism of the present technical solution, the two lower molds 1 are installed mutually. When installing, after the elastic frame 12 passes through the connecting groove 7, the clamping part 11 on the elastic frame 12 abuts against the side wall of the second connecting part 8, and the fastening rod 9 is inserted into the through hole 4 of the upper mold 2, and the spring 15 in the telescopic groove 17 passing through the through hole 4 pushes the connecting block 16 to be protruded at the top of the upper mold 2, and squeezes the upper mold 2 and the two lower molds 1 to maintain a tight connection. When demoulding, after the upper mold 2 is disassembled, hold it by hand. The extrusion plate causes the two ends of the elastic frame 12 to shrink in the groove 13, thereby separating the clamping portion 11 from the side wall of the second connecting portion 8, and after separation, the two lower molds 1 are disassembled to remove the parts from one of the lower molds 1, and after disassembly, the bottom plate 10 is slid out of the lower mold 1, and the bottom plate 10 drives the parts to be removed from the other lower mold 1 during the movement, and squeezes the connecting block 16 to shrink into the telescopic groove 17 to separate the upper mold 2 from the two lower molds 1, thereby improving the convenience of installation and disassembly of the upper mold 2.

[0032] All technical features in this embodiment can be freely combined according to actual needs.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to 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 utility model shall be included in the protection scope of the present utility model.

Claims

1. A demoulding mechanism for a mold, comprising two symmetrically arranged lower molds (1) and an upper mold (2) mounted on the top of the lower molds (1), characterized in that: A fastening rod (9) for fixing the upper mold (2) is installed at the top end of the lower mold (1), and a first connecting part (6) and a second connecting part (8) are fixed at both ends of the two lower molds (1), a connecting groove (7) is provided on the second connecting part (8), an elastic frame (12) which is fitted and inserted in the connecting groove (7) is fixed on the side wall of the first connecting part (6), a groove (13) is provided at the center position of the side wall of the elastic frame (12), and a clamping part (11) which abuts against the side wall of the second connecting part (8) is fixed on one end of the elastic frame (12) passing through the connecting groove (7), and an extrusion part (14) is fixed on the side wall of the clamping part (11).

2. A demoulding mechanism for a mold according to claim 1, characterized in that: The top end of the upper mold (2) is provided with a plurality of through holes (4) corresponding to the fastening rods (9) in a rectangular array, and a molding portion (5) is fixed to the bottom end of the upper mold (2).

3. A demoulding mechanism for a mold according to claim 2, characterized in that: A molding cavity is provided between the molding portion (5) and the lower mold (1), and a feed pipe (3) connected to the molding cavity is installed at the top end of the upper mold (2).

4. A demoulding mechanism for a mold according to claim 1, characterized in that: A bottom plate (10) is embedded in the bottom ends of the two lower moulds (1), and two ends of the bottom plate (10) are respectively fitted and inserted into the two lower moulds (1).

5. A demoulding mechanism for a mold according to claim 2, characterized in that: The fastening rod (9) is inserted into the through hole (4) in an aligned manner, and the top end of the fastening rod (9) passes through the through hole (4) and is symmetrically provided with a telescopic groove (17).

6. A demoulding mechanism for a mold according to claim 5, characterized in that: A spring (15) is embedded in the telescopic groove (17), and a connecting block (16) in contact with the spring (15) is slidably inserted in the telescopic groove (17).

7. A demoulding mechanism for a mold according to claim 6, characterized in that: The bottom end of the connecting block (16) is tightly connected to the upper mold (2), and an anti-slip portion abutting against the inner wall of the telescopic groove (17) is fixed on the connecting block (16).

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