Demolding device for injection mold

Abstract

The utility model discloses a demoulding device for an injection mould, which comprises a base, a lower mould is fixedly arranged on the surface of the base, a sealing cover is rotatably arranged in the lower mould, and a fixing component is arranged between the sealing cover and the lower mould to realize position fixation. According to the demolding device for the injection mold, the pushing rod capable of sliding upwards through rotation of the sealing cover is arranged among the base, the lower mold and the sealing cover, and an assembly is arranged between the driving column for driving the pushing rod to slide and the sealing cover, so that driving movement can be achieved only after the driving column slides to a designated position and is clamped with the surface of the driving shaft; furthermore, the pushing rod cannot move before the sealing cover rotates to a certain angle, it can be guaranteed that materials cannot be hindered in the upward moving process of the pushing rod, the whole materials are prevented from being damaged, demolding is achieved through rotation of the sealing cover, and material residues in the mold can be cleaned in time after the materials are separated.

Description

Technical Field

[0001] The utility model relates to the technical field of demoulding devices, in particular to a demoulding device for injection molds. Background Art

[0002] The reference patent name is: A high-efficiency demoulding device suitable for injection molds (patent publication number: CN217752601U, patent publication date: 2022-11-08), including a bottom plate, a top plate is arranged above the bottom plate, a lower mold is fixedly installed on the top of the top plate, an upper mold is arranged on the top of the lower mold, a mounting plate is fixedly installed on the top of the upper mold, an injection hole is opened on the upper mold, and a slot is opened on the mounting plate at a position corresponding to the injection hole, and extrusion rods are symmetrically fixedly installed on both sides of the bottom of the top plate, and mounting slot frames are fixedly installed on both sides of the top of the bottom plate at positions corresponding to the extrusion rods; the utility model cooperates with each other among components such as the extrusion rod, the slide plate, the first spring, the push plate and the ejector rod, and the first spring is squeezed by the extrusion rod and the slide plate. At this time, the top plate will drive the lower mold away from the upper mold and the distance between the push plate and the top plate will gradually increase. The push plate does not move, so that the push plate ejects the material, thereby achieving the effect of high-efficiency demoulding.

[0003] However, when implementing the above technical scheme, there are the following problems: the above scheme can realize the mold movement to separate the material from the lower mold to achieve demolding, but in the above scheme, components are used to prompt the lower mold to move downward when the lower mold and the material are separated. Structures such as pipes are arranged above the lower mold. The components are relatively heavy when controlling the movement, and thus the wear of the components is relatively heavy. In addition, there are relatively complex and heavy structures on the surface of the moved structure, which poses certain safety hazards. For this reason, the utility model provides a demolding device for an injection mold. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a demoulding device for an injection mold, which solves the problem that the surface weight of the control structure of the injection mold demoulding device is high and the structure is relatively complex when the lower mold is moved to realize material ejection, which poses certain safety hazards.

[0005] To achieve the above purpose, the utility model is implemented by the following technical solutions: a demoulding device for an injection mold, comprising a base, a lower mold is fixedly arranged on the surface of the base, a sealing cover is rotatably arranged inside the lower mold, a fixing component is arranged between the sealing cover and the lower mold to fix the position, a demoulding mechanism is arranged between the sealing cover and the base to realize the separation of the internal material, and the demoulding mechanism includes:

[0006] A basic component is arranged between the base and the lower mold to realize material pushing, including a pushing rod sliding inside the base, a pushing wheel and a rotating wheel are provided for rotation inside the base, a transmission component is arranged between the pushing wheel and the rotating wheel to realize rotation transmission, and a driving component is arranged between the rotating wheel and the sealing cover to realize rotation drive;

[0007] The driving assembly is arranged between the sealing cover and the rotating wheel to realize rotational drive, including a driving column sliding with the inside of the sealing cover, a delay assembly is arranged between the driving column and the sealing cover to realize transmission, a driving shaft is arranged for internal rotation of the lower mold, reversing bevel teeth are fixed on the surfaces of the driving shaft and the rotating wheel, and a locking assembly is arranged between the driving column and the driving shaft to realize structural locking.

[0008] Preferably, the fixing assembly includes a fixing groove opened on the surface of the lower mold, and the surface of the sealing cover is rotatably connected with a fixing rod.

[0009] Preferably, the transmission assembly comprises transmission wheels fixed on the surfaces of the driving wheel and the rotating wheel, and a transmission belt is connected between the transmission wheels.

[0010] Preferably, the delay assembly includes a delay shaft fixed to the inside of the sealing cover, a delay groove is provided on the surface of the driving column, and a limit assembly is provided between the driving column and the sealing cover to realize structural movement limitation.

[0011] Preferably, the limiting assembly includes a limiting column fixed on the surface of the driving column, and a limiting groove is provided inside the sealing cover.

[0012] Preferably, the locking assembly comprises a locking column fixed on the surface of the driving column, and the surface of the driving shaft is fixedly connected with locking teeth. Beneficial Effects

[0013] The utility model provides a demoulding device for an injection mold. Compared with the prior art, it has the following beneficial effects:

[0014] (1) The demoulding device for the injection mold is provided with a push rod between the base, the lower mold and the sealing cover, which can slide upward by rotating the sealing cover, and a component is provided between the driving column driven by the push rod and the sealing cover so that the driving column can be driven to move only after sliding to a specified position and engaging with the surface of the driving shaft. Therefore, the push rod cannot move before the sealing cover rotates to a certain angle, thereby ensuring that the material will not be obstructed during the upward movement of the push rod, thereby avoiding damage to the entire material. The demoulding is achieved by rotating the sealing cover, and the residual material inside the mold can be cleaned in time after the material is ejected.

[0015] (2) The demoulding device for the injection mold is provided with a delay shaft and a spiral delay groove between the sealing cover and the driving column. When the sealing cover rotates, the delay shaft will rotate, and then the delay shaft will slide inside the delay groove, and the driving column will slide toward the position of the driving shaft under the action of the limit column and the rectangular limit groove. At the same time, after the sealing cover rotates to a certain angle, the delay shaft slides to one side of the delay groove. At this time, the rotation of the sealing cover will drive the driving column to rotate. At this time, the driving column will be extended and will be engaged with the delay shaft, so that the driving shaft can rotate, and the sliding of the push rod can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a first-view structural stereogram of the utility model;

[0017] Figure 2 This is a first-view three-dimensional structural split diagram of the lower mold of the utility model;

[0018] Figure 3 This is a first-view three-dimensional structural exploded view of the driving column of the utility model;

[0019] Figure 4 It is a 3D structural cross-sectional view of the lower mold of the utility model from a second viewing angle;

[0020] Figure 5 It is a three-dimensional structural cross-sectional view from a second viewing angle of the fixing assembly of the utility model.

[0021] In the figure: 1-base, 2-lower mold, 3-sealing cover, 4-fixing assembly, 41-fixing groove, 42-fixing rod, 5-demolding mechanism, 51-pushing rod, 52-pushing wheel, 53-revolving wheel, 54-driving column, 55-driving shaft, 56-reversing bevel gear, 6-transmission assembly, 61-transmission wheel, 62-transmission belt, 7-delay assembly, 71-delay shaft, 72-delay groove, 73-limiting assembly, 731-limiting column, 732-limiting groove, 8-clamping assembly, 81-clamping column, 82-clamping tooth. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-5 , the utility model provides two technical solutions: Embodiment 1

[0024] A demoulding device for an injection mold comprises a base 1, a lower mold 2 is fixedly arranged on the surface of the base 1, an annular groove is provided on the surface of the lower mold 2, a demoulding agent can be placed inside the groove and immersed in the lower mold 2, so as to facilitate demoulding of the material and the lower mold 2, a cooling structure through which water can flow is provided on the surface of the lower mold 2, so as to achieve overall cooling of the lower mold 2 and shaping of the internal material, a sealing cover 3 is provided inside the lower mold 2 for rotation, a fixing component 4 is provided between the sealing cover 3 and the lower mold 2 to achieve position fixing, a groove is provided on the surface of the sealing cover 3 for injecting material, a demoulding mechanism 5 is provided between the sealing cover 3 and the base 1 to achieve separation of the internal material, and the demoulding mechanism 5 comprises:

[0025] The basic component is arranged between the base 1 and the lower mold 2 to realize material pushing, including a pushing rod 51 sliding with the inside of the base 1, a pushing wheel 52 and a rotating wheel 53 are provided for rotation inside the base 1, a spiral groove is provided on the surface of the pushing rod 51, a column is fixedly connected to the surface of the pushing wheel 52, and the surface of the column is slidably connected to the inner surface of the groove on the surface of the pushing rod 51, a transmission component 6 is provided between the pushing wheel 52 and the rotating wheel 53 to realize rotation transmission, and a driving component is provided between the rotating wheel 53 and the sealing cover 3 to realize rotation drive;

[0026] The driving assembly is arranged between the sealing cover 3 and the rotating wheel 53 to realize rotational drive, including a driving column 54 sliding inside the sealing cover 3, a delay assembly 7 is arranged between the driving column 54 and the sealing cover 3 to realize transmission, a driving shaft 55 is arranged inside the lower mold 2 for rotation, and the driving shafts 55 are rotated through a transmission assembly 6 to realize rotational transmission, and the surfaces of the driving shafts 55 and the rotating wheel 53 are fixed with reversing bevel teeth 56, and the surfaces of the reversing bevel teeth 56 are meshed, and a clamping assembly 8 is arranged between the driving column 54 and the driving shaft 55 to realize structural clamping;

[0027] A push rod 51 is provided between the base 1, the lower mold 2 and the sealing cover 3, which can slide upwards by rotating the sealing cover 3, and a component is provided between a driving column 54 driven by the push rod 51 to slide and the sealing cover 3, so that the driving column 54 can be driven to move only after it slides to a specified position and engages with the surface of the driving shaft 55. Furthermore, the push rod 51 cannot move before the sealing cover 3 rotates to a certain angle, which can ensure that the material will not be hindered during the upward movement of the push rod 51, thereby avoiding damage to the overall material, and demoulding is achieved by rotating the sealing cover 3, so that the residual material inside the mold can be cleaned in time after the material is ejected. Embodiment 2

[0028] The main difference from the first embodiment is:

[0029] A demoulding device for an injection mold, wherein a fixing component 4 includes a fixing groove 41 opened on the surface of a lower mold 2, a fixing rod 42 is rotatably connected to the surface of a sealing cover 3, the fixing groove 41 is a combination of a rectangle and a circle, and the fixing rod 42 can rotate a certain angle inside the fixing groove 41, a transmission component 6 includes a transmission wheel 61 fixed on the surfaces of a driving wheel 52 and a rotating wheel 53, and a transmission belt 62 is connected between the transmission wheels 61, a delay component 7 includes a delay shaft 71 fixed to the inside of the sealing cover 3, a delay groove 72 is opened on the surface of a driving column 54, and the delay groove 72 is spiral, and the surface of the delay shaft 71 is slidably connected to the inner surface of the delay groove 72, a limiting component 73 is arranged between the driving column 54 and the sealing cover 3 to realize structural movement restriction, and the limiting component 73 includes a limiting column fixed on the surface of the driving column 54 731, a limiting groove 732 is provided inside the sealing cover 3, the locking assembly 8 includes a locking column 81 fixed on the surface of the driving column 54, and the surface of the driving shaft 55 is fixedly connected with a locking tooth 82. A delay shaft 71 and a spiral delay groove 72 are arranged between the sealing cover 3 and the driving column 54. When the sealing cover 3 rotates, the delay shaft 71 will rotate, and then the delay shaft 71 will slide inside the delay groove 72, and the driving column 54 will slide toward the position of the driving shaft 55 under the action of the limiting column 731 and the rectangular limiting groove 732. At the same time, after the sealing cover 3 rotates to a certain angle, the delay shaft 71 slides to one side of the delay groove 72. At this time, the rotation of the sealing cover 3 will drive the driving column 54 to rotate. At this time, the driving column 54 will be extended and will be locked with the delay shaft 71, so that the driving shaft 55 can rotate, and the sliding of the push rod 51 can be realized at this time.

[0030] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] During operation, after the materials inside the lower mold 2 and the sealing cover 3 are formed, the fixing rod 42 on the surface of the sealing cover 3 can be rotated to cause the fixing rod 42 to slide out of the fixing groove 41, and the sealing cover 3 can be rotated upward. The rotation of the sealing cover 3 will drive the internal driving column 54 to slide toward the driving shaft 55. When the sealing cover 3 is rotated to be perpendicular to the lower mold 2, the locking column 81 on the surface of the driving column 54 will contact the surface of the locking tooth 82 to achieve the locking of the driving shaft 55 and the driving column 54. At this time, the further rotation of the sealing cover 3 will drive the driving column 54 to rotate, and then drive the driving shaft 55 to rotate. The rotation of the driving shaft 55 drives the rotating wheel 53 to rotate through the transmission assembly 6 and the reversing bevel gear 56, and then drives the pushing wheel 52 to rotate. At this time, it will drive the pushing rod 51 to move upward, causing the surface of the material to separate from the inner surface of the lower mold 2, thereby achieving demoulding.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A demoulding device for an injection mold, comprising a base (1), characterized in that: A lower mold (2) is fixedly provided on the surface of the base (1), a sealing cover (3) is rotatably provided inside the lower mold (2), a fixing component (4) is provided between the sealing cover (3) and the lower mold (2) to achieve position fixation, and a demoulding mechanism (5) is provided between the sealing cover (3) and the base (1) to achieve internal material separation, and the demoulding mechanism (5) comprises: A basic component is arranged between the base (1) and the lower mold (2) to realize material pushing, and includes a pushing rod (51) that slides inside the base (1); a pushing wheel (52) and a rotating wheel (53) are provided inside the base (1) for rotation; a transmission component (6) is provided between the pushing wheel (52) and the rotating wheel (53) to realize rotation transmission; and a driving component is provided between the rotating wheel (53) and the sealing cover (3) to realize rotation drive; A driving assembly is arranged between the sealing cover (3) and the rotating wheel (53) to realize rotational drive, and comprises a driving column (54) sliding inside the sealing cover (3); a delay assembly (7) is arranged between the driving column (54) and the sealing cover (3) to realize transmission; a driving shaft (55) is provided inside the lower mold (2) for rotation; reversing bevel teeth (56) are fixed on the surfaces of the driving shaft (55) and the rotating wheel (53); and a locking assembly (8) is arranged between the driving column (54) and the driving shaft (55) to realize structural locking.

2. A demoulding device for an injection mold according to claim 1, characterized in that: The fixing assembly (4) comprises a fixing groove (41) formed on the surface of the lower mould (2), and a fixing rod (42) is rotatably connected to the surface of the sealing cover (3).

3. The demoulding device for injection mold according to claim 1, characterized in that: The transmission assembly (6) comprises a transmission wheel (61) fixed on the surface of the driving wheel (52) and the rotating wheel (53), and a transmission belt (62) is connected between the transmission wheels (61).

4. The demoulding device for injection mold according to claim 1, characterized in that: The delay assembly (7) includes a delay shaft (71) fixed to the inside of the sealing cover (3), a delay groove (72) is provided on the surface of the driving column (54), and a limit assembly (73) is provided between the driving column (54) and the sealing cover (3) to achieve structural movement restriction.

5. A demoulding device for an injection mold according to claim 4, characterized in that: The limiting assembly (73) comprises a limiting column (731) fixed on the surface of the driving column (54), and a limiting groove (732) is provided inside the sealing cover (3).

6. The demoulding device for injection mold according to claim 1, characterized in that: The locking assembly (8) comprises a locking column (81) fixed on the surface of the driving column (54), and locking teeth (82) are fixedly connected to the surface of the driving shaft (55).

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