Novel spectacle-frame demoulding mechanism
Technical Field
The utility model relates to the technical field of eyeglass molds, in particular to a novel eyeglass frame demolding mechanism.
Background
Eyeglass frames are mainly classified into full-frame and half-frame types, and eyeglass frame molds are indispensable tools in the manufacturing process.
Through a large amount of searches, publication number CN219820365U discloses a novel spectacle-frame demoulding mechanism, through take off flitch and anticreep groove and ejector pin that set up, can drive to take off the flitch and remove, thereby release the second die cavity with shaping spectacle-frame through anticreep groove, anticreep groove and spectacle-frame area of contact is big moreover, can not cause the spectacle-frame drawing of patterns impaired, great improvement the efficiency of taking off of spectacle-frame and security, and through telescopic link that sets up, the push pedal, guide pillar and reset spring, can quick stability control take off the flitch and remove and reset, and a structure is simple, job stabilization, great improvement the drawing of patterns stability of spectacle-frame.
In the prior art, when the mold is used, the spectacle frame is usually thinner, so that the molded spectacle frame is easy to deform to a certain extent due to overlarge pushing force when the demolding operation is carried out, the quality of a finished product is influenced, and a novel spectacle frame demolding mechanism is needed to solve the problem.
Disclosure of utility model
The utility model aims to provide a novel spectacle frame demoulding mechanism which has the advantage of reducing the pressing force applied to spectacles when the spectacles are demoulded, and solves the problem that in the prior art, a mould can apply force to a formed spectacle frame when the spectacles are demoulded, so that the formed spectacles are pressed and deformed when the force is large.
In order to achieve the above purpose, the novel spectacle frame demoulding mechanism comprises a bottom plate, wherein a transverse fixed die is fixedly arranged on the upper surface of the bottom plate, a transverse movable die is movably arranged at the front end of the transverse fixed die, a plastic groove is formed in one side opposite to the transverse fixed die and the transverse movable die, a second longitudinal limit frame is movably arranged at the top of the transverse fixed die and the top of the transverse movable die, and a first longitudinal limit frame is movably arranged at the bottom of the transverse fixed die and the bottom of the transverse movable die;
The shaping blocks are movably inserted into the shaping grooves on the first longitudinal limiting frame and the second longitudinal limiting frame, and the opposite sides of the shaping blocks on the first longitudinal limiting frame and the second longitudinal limiting frame are in contact but not fixedly connected.
Preferably, the two sides of the rear end of the upper surface of the bottom plate are respectively and fixedly provided with a second air cylinder, and the tops of the two second air cylinders are both in rotary connection with the rear end of the second longitudinal limiting frame. In the design, the second cylinder provides a stable power source for the up-and-down movement of the second longitudinal limiting frame, and the smooth demolding action is ensured. The lifting height of the second longitudinal limiting frame can be accurately controlled through the extension and retraction of the air cylinder, so that the requirement of demolding of glasses frames with different sizes and thicknesses is met. The rotary connection mode of the air cylinder and the second longitudinal limiting frame ensures that the whole mechanism has the function of increasing the operation space when the finished product is taken out while keeping compact.
Preferably, the two sides of the transverse fixed die are fixedly provided with third cylinders, and the front ends of the two third cylinders are fixedly connected with the two sides of the transverse movable die respectively. The telescopic action of the third cylinder in the design enables the transverse movable mould to be easily opened and closed, and convenience is provided for injection molding and demoulding processes. The simultaneous action of the two cylinders ensures the stability and the synchronism of the transverse movable mould in the opening and closing process, and avoids the damage of the mould or the deformation of the spectacle frame caused by uneven stress on one side. The cylinder is installed in the both sides of horizontal cover half, the spatial structure of make full use of mould for whole mechanism is compacter high-efficient.
Preferably, the injection molding hole is formed in the middle of the upper surface of the second longitudinal limiting frame, and the second longitudinal limiting frame is parallel to the first longitudinal limiting frame. The arrangement of injection holes in the design enables molten plastic to be conveniently injected into the mold to form the preliminary shape of the glasses frame. The parallel design of the second longitudinal limiting frame and the first longitudinal limiting frame ensures the stability and accuracy of the die in the injection molding and demolding processes. The parallel structure enables operators to observe and operate the die more conveniently, and work efficiency and safety are improved.
Preferably, the inner wall of the molding groove is not contacted with the outer wall of the molding block, and the molding block is injection molded with the molded glasses on one side opposite to the molding groove. In the design, the inner wall of the molding groove is not contacted with the outer wall of the molding block, so that friction and abrasion of the mold in the closing process are reduced, and the service life of the mold is prolonged. Meanwhile, a certain gap exists between the shaping block and the shaping groove, so that the shaped glasses can be shaped between the shaping block and the shaping groove. The design ensures the precision and consistency of the formed glasses and improves the quality and reliability of products.
Preferably, four corners of the lower surface of the first longitudinal limiting frame are movably arranged with the upper surface of the bottom plate through first air cylinders respectively. The telescopic action of the first cylinder in the design enables the first longitudinal limiting frame to move up and down, so that the demolding requirement of the first longitudinal limiting frame is met. The even distribution of four cylinders provides stable support and positioning effect for the first longitudinal limiting frame, and ensures the stability and accuracy of the die in the injection molding and demolding processes. The automatic control of the air cylinder enables operators to control the opening and closing and lifting actions of the die more simply and conveniently, and the working efficiency and the safety are improved.
Compared with the prior art, the utility model has the following beneficial effects:
In the utility model, shaping blocks are fixedly arranged on opposite sides of the first longitudinal limiting frame and the second longitudinal limiting frame, and are movably inserted into shaping grooves of the transverse fixed die and the transverse movable die. Importantly, the two molding blocks are in contact but not fixedly connected on opposite sides. This means that they are not released by forced separation during the release process, as in conventional moulds, but rather that the progressive detachment of the spectacle frame is achieved by means of the gap between the shaping block and the shaping groove and the movement of the shaping block itself. By accurate control of the air cylinder, smooth movement of the various parts of the mould can be achieved. For example, the second cylinder pushes the second longitudinal limiting frame to move upwards, so that the formed glasses are gradually separated from the transverse fixed mold along with the rising of the second longitudinal limiting frame. Simultaneously, the first cylinder promotes first vertical spacing and moves downwards, makes moulding piece and the separation of shaping glasses. The step-by-step and smooth demolding mode avoids the compressive deformation of the glasses frame caused by forced separation in the traditional mold. In summary, the novel eyeglass frame demolding mechanism realizes gentle treatment of the eyeglass frame in the demolding process through the unique design and the working principle, so that the deformation problem caused by compression is reduced. The mechanism not only improves the product quality, but also improves the production efficiency, and brings new technical breakthrough for the glasses manufacturing industry.
Drawings
FIG. 1 is a schematic diagram of a front view of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is a schematic diagram of a connecting structure of a transverse fixed die and a transverse movable die;
fig. 4 is a schematic diagram of a connection structure between a first longitudinal limit frame and a second longitudinal limit frame according to the present utility model.
In the figure, 1, a bottom plate, 11, a first cylinder, 12, a second cylinder, 2, a first longitudinal limiting frame, 21, a shaping block, 3, a transverse fixed die, 31, a third cylinder, 4, a second longitudinal limiting frame, 41, an injection hole, 5, a transverse movable die, 6, shaped glasses, 7, and a shaping groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
As shown in fig. 1, 2, 3 and 4, the novel spectacle frame demoulding mechanism comprises a bottom plate 1, wherein a transverse fixed die 3 is fixedly arranged on the upper surface of the bottom plate 1, a transverse movable die 5 is movably arranged at the front end of the transverse fixed die 3, plastic grooves 7 are formed in opposite sides of the transverse fixed die 3 and the transverse movable die 5, a second longitudinal limit frame 4 is movably arranged at the tops of the transverse fixed die 3 and the transverse movable die 5, and a first longitudinal limit frame 2 is movably arranged at the bottoms of the transverse fixed die 3 and the transverse movable die 5;
The molding blocks 21 are fixedly arranged on the opposite sides of the first longitudinal limiting frame 2 and the second longitudinal limiting frame 4, the molding blocks 21 on the first longitudinal limiting frame 2 and the second longitudinal limiting frame 4 are movably inserted into the molding grooves 7, and the opposite sides of the molding blocks 21 on the first longitudinal limiting frame 2 and the second longitudinal limiting frame 4 are in contact but not fixedly connected.
Specifically, the opposite sides of the first longitudinal limiting frame 2 and the second longitudinal limiting frame 4 are fixedly provided with shaping blocks 21, and the shaping blocks 21 are movably inserted into the shaping grooves 7 of the transverse fixed die 3 and the transverse movable die 5. Importantly, the two molding blocks 21 are in contact but not fixedly connected on opposite sides. This means that during demolding they are not demolded by forced separation as in conventional molds, but rather that a gradual detachment of the spectacle frame is achieved by means of the gap between the shaping block 21 and the shaping groove 7 and the movement of the shaping block 21 itself. By accurate control of the air cylinder, smooth movement of the various parts of the mould can be achieved. For example, the second cylinder 12 pushes the second longitudinal stopper 4 to move upward, so that the molded glasses 6 are gradually separated from the lateral stationary mold 3 as the second longitudinal stopper 4 rises. At the same time, the first cylinder 11 pushes the first longitudinal limiting frame 2 to move downwards, so that the molding block 21 is separated from the molded glasses 6. The step-by-step and smooth demolding mode avoids the compressive deformation of the glasses frame caused by forced separation in the traditional mold. In conclusion, the novel spectacle frame demoulding mechanism realizes gentle treatment of the spectacle frame in the demoulding process by virtue of the unique design and the working principle, so that the deformation problem caused by compression is reduced. The mechanism not only improves the product quality, but also improves the production efficiency, and brings new technical breakthrough for the glasses manufacturing industry.
Example two
In order to stably move each component of the mold during the demolding process, as shown in fig. 3 and 4, in this embodiment, two sides of the rear end of the upper surface of the bottom plate 1 are respectively and fixedly provided with a second cylinder 12, and the tops of the two second cylinders 12 are both rotationally connected with the rear end of the second longitudinal limiting frame 4. The second cylinder 12 provides a stable power source for the up-and-down movement of the second longitudinal limiting frame 4 in the design, and ensures the smooth demolding action. The lifting height of the second longitudinal limiting frame 4 can be accurately controlled through the extension and retraction of the air cylinder, so that the requirement of demolding of glasses frames with different sizes and thicknesses is met. The rotary connection mode of the air cylinder and the second longitudinal limiting frame 4 ensures that the whole mechanism has the function of increasing the operation space when the finished product is taken out while keeping compact.
Further, the two sides of the transverse fixed die 3 are fixedly provided with third air cylinders 31, and the front ends of the two third air cylinders 31 are fixedly connected with the two sides of the transverse movable die 5 respectively. The telescopic action of the third cylinder 31 in the design enables the transverse movable mould 5 to be easily opened and closed, thereby providing convenience for injection molding and demoulding processes. The simultaneous action of the two cylinders ensures the stability and the synchronism of the transverse movable mould 5 in the opening and closing process, and avoids the mould damage or the spectacle frame deformation caused by uneven unilateral stress. The air cylinders are arranged on two sides of the transverse fixed die 3, so that the space structure of the die is fully utilized, and the whole mechanism is more compact and efficient.
Further, an injection molding hole 41 is formed in the middle of the upper surface of the second longitudinal limiting frame 4, and the second longitudinal limiting frame 4 and the first longitudinal limiting frame 2 are parallel to each other. The provision of injection holes 41 in the design allows the molten plastic to be conveniently injected into the mold to form the preliminary shape of the eyeglass frame. The parallel design of the second longitudinal limiting frame 4 and the first longitudinal limiting frame 2 ensures the stability and accuracy of the die in the injection molding and demolding processes. The parallel structure enables operators to observe and operate the die more conveniently, and work efficiency and safety are improved.
Further, the inner wall of the molding groove 7 is not contacted with the outer wall of the molding block 21, and the molding glasses 6 are injection molded on the opposite side of the molding block 21 and the molding groove 7. The design that the inner wall of the moulding groove 7 is not contacted with the outer wall of the moulding block 21 reduces friction and abrasion of the mould in the closing process, and prolongs the service life of the mould. Meanwhile, a certain gap exists between the shaping block 21 and the shaping groove 7, so that the shaped glasses 6 can be shaped between the shaping block 21 and the shaping groove 7. This design ensures the accuracy and consistency of the molded eyeglass 6, improving the quality and reliability of the product.
Further, four corners of the lower surface of the first longitudinal limiting frame 2 are movably arranged with the upper surface of the bottom plate 1 through first air cylinders 11 respectively. The telescopic action of the first cylinder 11 in the design enables the first longitudinal limiting frame 2 to move up and down, so that the demolding requirement of the first longitudinal limiting frame 2 is met. The even distribution of four cylinders provides stable supporting and positioning effect for the first longitudinal limiting frame 2, and ensures the stability and accuracy of the die in the injection molding and demolding processes. The automatic control of the air cylinder enables operators to control the opening and closing and lifting actions of the die more simply and conveniently, and the working efficiency and the safety are improved.
When the utility model is used, molten plastic material is injected through the injection molding hole 41 on the upper surface of the second longitudinal limit frame 4, the plastic material is cooled and solidified into the preliminary shape of the glasses frame under the combined action of the plastic groove 7 and the plastic block 21, after injection molding is finished, the third air cylinders 31 on two sides of the transverse fixed mold 3 are started, the third air cylinders 31 push the transverse movable mold 5 to move forwards so as to separate the transverse fixed mold 3 from the transverse fixed mold 3, thereby exposing a part of the molded glasses 6, then, the second air cylinders 12 on the bottom plate 1 are started, the second air cylinders 12 push the second longitudinal limit frame 4 to move upwards, and the molded glasses 6 can be gradually separated from the transverse fixed mold 3 along with the rising of the second longitudinal limit frame 4, and at the same time or after the second longitudinal limit frame 4 rises, the first air cylinders 11 push and pull the first longitudinal limit frame 2 to move downwards so as to separate the molded glasses 21 from the molded glasses 6, at the moment, the molded glasses 6 are completely separated from most parts of the mold 6, and then, the molded glasses 6 can be easily taken out from the mold 6 for subsequent processing by an operator.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.