Optical lens light guide plate mold with discharge ejection structure

Abstract

The utility model discloses an optical lens light guide plate mold with a discharge ejection structure, and relates to the technical field of light guide plate production, an upper mold and a lower mold are arranged on a base, and the bottom of the lower mold is fixed on the base through a plurality of supporting legs; an injection molding hole is formed in the upper mold; the lower ejection mechanism is arranged on the base and is connected with the lower die; the upper ejection mechanism is arranged on the upper mold; the push-out mechanism is arranged on the left side of the base; the light guide plate is prevented from moving along with the upper die; the practicability is improved; the light guide plate is uniformly stressed and pushed out, and deformation and damage of the light guide plate are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of light guide plate production, in particular to an optical mirror light guide plate mould with a material ejection structure. Background Art

[0002] During the production of optical mirror light guide plates, demoulding is very important. The light guide plate moving with the upper mold may easily cause deformation of the light guide plate. The light guide plate is generally thin, and it is easy to be subjected to uneven force when it is separated from the lower mold, which may also cause deformation of the light guide plate. Therefore, an optical mirror light guide plate mold with a discharge and ejection structure is proposed. Summary of the invention

[0003] The utility model aims to solve the defects and shortcomings of the prior art and to provide an optical mirror light guide plate mold with a material ejection structure, so as to solve the above problems.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: it comprises a base, an upper mold and a lower mold; the base is provided with an upper mold and a lower mold, and the bottom of the lower mold is fixed to the base through a plurality of legs; the upper mold is provided with an injection hole;

[0005] It also contains:

[0006] A lower ejection mechanism, which is arranged on the base and connected to the lower mold;

[0007] An upper ejection mechanism, wherein the upper ejection mechanism is arranged on the upper die;

[0008] The ejection mechanism is arranged on the left side of the upper surface of the base.

[0009] Preferably, the lower ejection mechanism comprises:

[0010] The ejector plate is an inverted trapezoidal structure, and is embedded in the bottom plate of the lower mold; the upper surface of the ejector plate is arranged in line with the bottom of the cavity of the lower mold;

[0011] A number one electric push rod, wherein the number of the number one electric push rods is four and they are fixed on the base respectively, the number one electric push rods are connected to an external power supply; the movable end of the number one electric push rods is connected to the bottom of the ejection plate;

[0012] A motor, the motor is fixed on the base and connected to an external power source; the motor is arranged at the left front corner of the lower mold;

[0013] A screw rod, wherein the screw rod is connected to the output shaft of the motor, the screw rod is screwed and inserted into the lower die through a bearing, and the upper part of the screw rod is screwed and inserted into the upper die through a thread;

[0014] The limiting rods are three in number and are respectively fixed on the left rear corner, the right front corner and the right rear corner of the upper surface of the lower die; the limiting rods are movably inserted in the upper die.

[0015] Preferably, the upper ejection mechanism comprises:

[0016] A connecting plate, wherein the connecting plate is fixed to the limiting rod on the left rear side, the upper end of the screw rod is screwed to the connecting plate through a bearing, and the connecting plate is arranged on the left side of the injection hole;

[0017] A limiting tube, the limiting tube is screwed to the right side of the bottom of the connecting plate through a bearing;

[0018] An insertion rod, the insertion rod being movably inserted in the limiting tube;

[0019] A connecting rod, wherein the connecting rod is fixed at the bottom of the insertion rod;

[0020] A spring, wherein the spring is sleeved on the limiting tube and the insert rod, one end of the spring is fixed to the limiting tube, and the other end of the spring is fixed to the connecting rod;

[0021] The ejector rod is fixed to the right end of the connecting rod; the ejector rod is inserted into the injection hole.

[0022] Preferably, the diameter of the upper end of the injection hole is larger than the diameter of the lower end.

[0023] Preferably, the ejection mechanism comprises:

[0024] A mounting plate, wherein the mounting plate is fixed to the left side of the upper surface of the base;

[0025] A second electric push rod, the second electric push rod is fixed to the upper end of the right side wall of the mounting plate, and the second electric push rod is connected to an external power supply;

[0026] A push plate is connected to the movable end of the second electric push rod.

[0027] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides an optical mirror light guide plate mold with a discharge and ejection structure, which prevents the light guide plate from following the movement of the upper mold; improves practicality; and makes the light guide plate evenly stressed and pushed out, thus preventing the light guide plate from being deformed and damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0029] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0030] Figure 2 It is a schematic diagram of the structure of the utility model during demoulding.

[0031] Figure 3 It is a sectional view of the upper die and the lower die in the utility model.

[0032] Figure 4 It is a structural schematic diagram of the ejector plate in the utility model.

[0033] Description of reference numerals:

[0034] Base 1, upper mold 2, lower mold 3, injection hole 4, lower ejector mechanism 5, ejector plate 5-1, No. 1 electric push rod 5-2, motor 5-3, screw 5-4, limit rod 5-5, upper ejector mechanism 6, connecting plate 6-1, limit tube 6-2, insert rod 6-3, connecting rod 6-4, spring 6-5, ejector rod 6-6, ejection mechanism 7, mounting plate 7-1, No. 2 electric push rod 7-2, push plate 7-3. DETAILED DESCRIPTION

[0035] The utility model is further described below in conjunction with the accompanying drawings.

[0036] See also Figure 1-4 , it comprises a base 1, an upper mold 2 and a lower mold 3; the base 1 is provided with an upper mold 2 and a lower mold 3, and the bottom of the lower mold 3 is fixed on the base 1 through a plurality of legs; the upper mold 2 is provided with an injection hole 4;

[0037] It also contains:

[0038] The lower ejection mechanism 5 is arranged on the base 1 and connected to the lower mold 3; the lower ejection mechanism 5 comprises:

[0039] The ejector plate 5-1 is an inverted trapezoidal structure, and the ejector plate 5-1 is embedded in the bottom plate of the lower mold 3; the upper surface of the ejector plate 5-1 is arranged in line with the bottom of the cavity of the lower mold 3;

[0040] The number of the electric push rod 5-2 is four, and they are fixed to the base 1 by bolts respectively. The electric push rod 5-2 is connected to an external power supply. The specific model of the electric push rod 5-2 is purchased and installed directly from the market according to actual use requirements. The movable end of the electric push rod 5-2 is connected to the bottom of the ejection plate 5-1.

[0041] Motor 5-3, the motor 5-3 is fixed to the base 1 by bolts, the motor 5-3 is connected to an external power supply, and the specific model of the motor 5-3 is purchased and installed directly from the market according to actual use requirements and used; the motor 5-3 is arranged at the left front corner of the lower mold 3;

[0042] Screw 5-4, the screw 5-4 is connected to the output shaft of the motor 5-3, the screw 5-4 is screwed through the lower mold 3 through a bearing, and the upper part of the screw 5-4 is screwed through the upper mold 2 through a thread;

[0043] Limit rods 5-5, the number of the limit rods 5-5 is three, and they are respectively fixed at the left rear corner, the right front corner and the right rear corner of the upper surface of the lower mold 3; the limit rods 5-5 are movably inserted in the upper mold 2;

[0044] The upper ejection mechanism 6 is arranged on the upper mold 2; the upper ejection mechanism 6 comprises:

[0045] A connecting plate 6-1, wherein the connecting plate 6-1 is fixed to the limit rod 5-5 on the left rear side, and the upper end of the screw rod 5-4 is screwed to the connecting plate 6-1 through a bearing, and the connecting plate 6-1 is arranged on the left side of the injection hole 4;

[0046] A limit tube 6-2, wherein the limit tube 6-2 is screwed to the bottom right side of the connecting plate 6-1 through a bearing;

[0047] Insertion rod 6-3, the insertion rod 6-3 is movably inserted in the limiting tube 6-2;

[0048] A connecting rod 6-4, wherein the connecting rod 6-4 is fixed at the bottom of the insertion rod 6-3;

[0049] Spring 6-5, the spring 6-5 is sleeved on the limiting tube 6-2 and the insert rod 6-3, one end of the spring 6-5 is fixed to the limiting tube 6-2, and the other end of the spring 6-5 is fixed to the connecting rod 6-4;

[0050] The ejector rod 6-6 is fixed to the right end of the connecting rod 6-4; the ejector rod 6-6 is inserted into the injection hole 4, and the upper end diameter of the injection hole 4 is larger than the lower end diameter;

[0051] The ejection mechanism 7 is arranged on the left side of the upper surface of the base 1; the ejection mechanism 7 comprises:

[0052] A mounting plate 7-1, wherein the mounting plate 7-1 is fixed to the left side of the upper surface of the base 1 by bolts;

[0053] The second electric push rod 7-2 is fixed to the upper end of the right wall of the mounting plate 7-1, and the second electric push rod 7-2 is connected to an external power supply. The specific model of the second electric push rod 7-2 is purchased directly from the market and installed and used according to actual use requirements;

[0054] Push plate 7-3, the push plate 7-3 is connected to the movable end of the second electric push rod 7-2.

[0055] The working principle of this specific embodiment is as follows: the ejector rod 6-6 is moved upward, the spring 6-5 is compressed, the ejector rod 6-6 leaves the injection hole 4, and the ejector rod 6-6 is rotated so that the ejector rod 6-6 moves out of the injection hole 4 and abuts against the upper mold 2; the injection hole 4 is injected with raw materials, the ejector plate 5-1 is an inverted trapezoidal structure, and the inclined side wall of the ejector plate 5-1 fits with the lower mold 3 to prevent the raw materials from leaking, and the raw materials are formed in the cavities in the upper mold 2 and the lower mold 3 to become a light guide plate;

[0056] When discharge is required, rotate the ejector rod 6-6 into the injection hole 4, start the motor 5-3, so that the screw 5-4 rotates, and under the action of the limit rod 5-5, the upper mold 2 rises, and the ejector rod 6-6 applies pressure to the light guide plate under the action of the spring 6-5 to prevent the light guide plate from moving with the upper mold 2; start the No. 1 electric push rod 5-2 to make the ejector plate 5-1 rise, and the upper surface of the ejector plate 5-1 is consistent with the bottom of the cavity of the lower mold 3, so that the light guide plate is evenly pushed out by the force, and deformation and damage of the light guide plate are avoided; after ejection is completed, start the No. 2 electric push rod 7-2 to move the push plate 7-3 to the right, and push the light guide plate to the right to separate it from the ejector plate 5-1, so as to facilitate discharge.

[0057] After adopting the above structure, the beneficial effects of this specific implementation are:

[0058] 1. An upper ejection mechanism 6 is provided to prevent the ejection rod 6-6 from exerting pressure on the light guide plate under the action of the spring 6-5, and to prevent the light guide plate from moving with the upper mold 2. Practicality is improved;

[0059] 2. A lower ejection mechanism 5 is provided, and the upper surface of the ejection plate 5-1 is arranged in line with the bottom of the cavity of the lower mold 3, so that the light guide plate is evenly pushed out to avoid deformation and damage of the light guide plate.

[0060] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A mold for an optical mirror light guide plate having a material ejection structure, comprising a base (1), an upper mold (2) and a lower mold (3); the base (1) is provided with an upper mold (2) and a lower mold (3), the bottom of the lower mold (3) is fixed to the base (1) by a plurality of legs; the upper mold (2) is provided with an injection hole (4); It is characterized in that It also contains: A lower ejection mechanism (5), wherein the lower ejection mechanism (5) is disposed on the base (1), and the lower ejection mechanism (5) is connected to the lower mold (3); An upper ejection mechanism (6), wherein the upper ejection mechanism (6) is arranged on the upper mold (2); The ejection mechanism (7) is arranged on the left side of the upper surface of the base (1).

2. The optical mirror light guide plate mold with a discharge and ejection structure according to claim 1, characterized in that: The lower ejection mechanism (5) comprises: An ejector plate (5-1), the ejector plate (5-1) being an inverted trapezoidal structure, the ejector plate (5-1) being embedded in the bottom plate of the lower mold (3); the upper surface of the ejector plate (5-1) being arranged in line with the bottom of the cavity of the lower mold (3); No. 1 electric push rods (5-2), the number of which is four and which are respectively fixed on the base (1), and the No. 1 electric push rods (5-2) are connected to an external power supply; the movable end of the No. 1 electric push rods (5-2) is connected to the bottom of the ejection plate (5-1); A motor (5-3), wherein the motor (5-3) is fixed on the base (1), and the motor (5-3) is connected to an external power source; the motor (5-3) is arranged at the left front corner of the lower mold (3); A screw rod (5-4), wherein the screw rod (5-4) is connected to the output shaft of the motor (5-3), the screw rod (5-4) is screwed through the lower mold (3) via a bearing, and the upper part of the screw rod (5-4) is screwed through the upper mold (2) via a thread; Limit rods (5-5), the number of the limit rods (5-5) is three, and they are respectively fixed on the left rear corner, the right front corner and the right rear corner of the upper surface of the lower mold (3); the limit rods (5-5) are movably inserted in the upper mold (2).

3. The optical mirror light guide plate mold with a discharge and ejection structure according to claim 1, characterized in that: The upper ejection mechanism (6) comprises: A connecting plate (6-1), wherein the connecting plate (6-1) is fixed to the limit rod (5-5) on the left rear side, the upper end of the screw rod (5-4) is screwed to the connecting plate (6-1) via a bearing, and the connecting plate (6-1) is arranged on the left side of the injection hole (4); A limiting tube (6-2), wherein the limiting tube (6-2) is screwed to the right side of the bottom of the connecting plate (6-1) via a bearing; An inserting rod (6-3), wherein the inserting rod (6-3) is movably inserted into the limiting tube (6-2); A connecting rod (6-4), wherein the connecting rod (6-4) is fixed at the bottom of the insertion rod (6-3); A spring (6-5), wherein the spring (6-5) is sleeved on the limiting tube (6-2) and the inserting rod (6-3), one end of the spring (6-5) is fixed to the limiting tube (6-2), and the other end of the spring (6-5) is fixed to the connecting rod (6-4); An ejector rod (6-6) is fixed to the right end of the connecting rod (6-4); the ejector rod (6-6) is inserted into the injection hole (4).

4. The optical mirror light guide plate mold with a discharge and ejection structure according to claim 3, characterized in that: The diameter of the upper end of the injection hole (4) is larger than the diameter of the lower end.

5. The optical mirror light guide plate mold with a discharge and ejection structure according to claim 1, characterized in that: The ejection mechanism (7) comprises: A mounting plate (7-1), wherein the mounting plate (7-1) is fixed to the left side of the upper surface of the base (1); A No. 2 electric push rod (7-2), the No. 2 electric push rod (7-2) being fixed to the upper end of the right side wall of the mounting plate (7-1), and the No. 2 electric push rod (7-2) being connected to an external power source; A push plate (7-3) is connected to the movable end of the second electric push rod (7-2).

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