TWI681859B - Optical sheet injection molding module structure - Google Patents

Abstract

An optical sheet injection molding module structure. The module structure for injection molding an optical sheet has upper and lower mold bases, and the two mold bases each have a first surface, a second surface, and a first On one side and a second side, at least one mold base is provided with a mold cavity recessed toward the second surface on the first surface, and there is a reserved position on the mold base facing the mold cavity A cooling space, which is moderately spaced from the bottom of the mold cavity without penetrating into the mold cavity, and at least two coolant inlets and at least one cooling channel at the two sides of the cooling space The agent output channel is connected and conducted.

Description

Optical sheet injection molding module structure

The invention relates to an "optical sheet injection molding module structure", in particular to an optical sheet injection molding module structure that can quickly cool the mold cavity.

According to the present, the conventionally known module structure (mold) (30) for injection molding optical sheets has upper and lower mold bases (31) (as shown in the ninth and tenth figures), the at least one A mold cavity (32) is provided inside the mold base (31). When the two mold bases (31) are mated, the plastic material is heated and melted by the injection molding machine and then injected into the module structure (30) to allow When the plastic raw materials are covered in the mold cavity (32) of the module structure (30), the optical sheet can be smoothly manufactured through the injection molding method, and in order to allow the plastic raw materials to be injected more smoothly Describe the mold cavity (32), the module structure (30) will perform a temperature increase action when closing the mold, so as to heat the entire module structure (30) from 120 degrees Celsius to 180 degrees Celsius, but when the mold is opened, In order to allow the molded optical sheet to be taken out immediately, the mold cavity (32) should be cooled from 180 degrees Celsius to 120 degrees Celsius, and then installed on the mold base (31) relative to the The cooling flow channel (33) outside the mold cavity (32) provides the passage of coolant, so that the temperature-lowering action can be successfully completed.

However, the above-mentioned conventional structure still has the following problems in practical application: its coolant will only follow the cooling flow channel (33) through the outside of the mold cavity (32), and will not circulate to The relative position of the mold cavity (32), so it will be cooled together with the entire mold base (31) when cooling, it is impossible to design the mold cavity (32) for targeted cooling, it takes a long time Wait for the cooling to be completed, and the production is not efficient, so the production cost will be improved.

Therefore, in view of this, the inventor thought of the idea of creation, and then designed it with many years of experience. After many discussions and trial samples, and several revisions and improvements, the present invention was launched.

The conventional optical sheet injection molding module cannot specifically cool the mold cavity, which is the technical problem to be solved.

The optical sheet injection molding module structure of the present invention, the module structure for injection molding the optical sheet has upper and lower two mold bases, each of which has a first surface and a second surface. A first side and a second side, at least one mold base is provided with a cavity on the first surface which is recessed toward the second surface, when the module structure is closed, the first of the two mold bases is closed The mating of the surface will enable the mold cavity to be closed, and the plastic material is heated and melted by the injection molding machine and then injected into the module structure, so that the plastic material is filled in the mold cavity of the module structure. The optical sheet can be successfully manufactured through the injection molding method, and a cooling space is reserved on the mold base at a position that is directly opposite to the mold cavity, and the cooling space is moderately matched with the bottom of the mold cavity Separated, without penetrating into the mold cavity, at the two sides of the cooling space are connected to at least one coolant input channel and at least one coolant output channel; thereby, the optical sheet can be formed Injection molding module structure.

According to the injection molding module structure of the optical sheet of the present invention, since the cooling space is provided on the mold base and is aligned and reasonably close to the mold cavity, the cooling space can be used to face the mold during cooling The cavity is targeted for cooling, so as to avoid excessive cooling ability acting on the non-mold cavity position on the mold base, so that the cooling action needs to wait for a long time to complete, and the design that can quickly cool down helps shorten The time required for each process makes production more efficient and effectively reduces costs.

Part of the invention:

(10)‧‧‧Module structure

(11)‧‧‧Mold base

(12)‧‧‧First surface

(13)‧‧‧Second surface

(14)‧‧‧First side

(15)‧‧‧Second side

(16) ‧‧‧ mold cavity

(17)‧‧‧cooling space

(18)‧‧‧coolant inlet

(19)‧‧‧coolant outlet

(20)‧‧‧Temperature stick

Learn part:

(30)‧‧‧Module structure

(31)‧‧‧Mold

(32)‧‧‧Cavities

(33)‧‧‧cooling runner

The first figure is a perspective view of the mold clamping state of the first preferred embodiment of the present invention.

Figure 2 is a perspective view of the first preferred embodiment of the present invention in the mold-open state.

Figure 3 is a plan view of the first preferred embodiment of the present invention.

Fourth figure: A-A sectional view of the third figure of the present invention.

Fig. 5 is a diagram of the second preferred embodiment of the present invention.

Figure 6: A diagram of the third preferred embodiment of the present invention.

Figure 7: A diagram of the fourth preferred embodiment of the present invention.

Figure 8: A diagram of the fifth preferred embodiment of the present invention.

The ninth picture: a plan view of the conventional structure.

Figure 10: A cross-sectional view of a conventional structure.

In order to enable your reviewing committee to have a better understanding and understanding of the purpose, features and effects of the present invention, the following is please cooperate with [the brief description of the drawings] to be detailed as follows: usually according to the present invention, please first from the first picture to the first As shown in the four figures, the module structure (mold) (10) used for injection molding of the optical sheet has upper and lower two mold bases (11), and the two mold bases (11) each have a first A surface (12), a second surface (13), a first side (14) and a second side (15), at least a first surface (12) of the mold base (11) is provided with The cavity (16) is recessed in the direction of the second surface (13). When the module structure (10) is closed, the first surface (12) of the second mold base (11) is closed, which will cause the mold The cavity (16) can be closed, and the plastic material is heated and melted through the injection molding machine and then injected into the module structure (10), so that the plastic material is covered in the mold cavity (16) of the module structure (10) At this time, the optical sheet can be successfully manufactured through the injection molding method, and a cooling space (17) is reserved on the mold base (11) at a position facing the mold cavity (16). The cooling space (17) is appropriately spaced from the bottom of the mold cavity (16) without penetrating into the mold cavity (16), and at least one on each side of the cooling space (17) The coolant input channel (18) and at least one coolant output channel (19) are connected and conducted.

The invention provides an optical sheet injection molding module structure, in which a coolant input channel (18) and a coolant output channel (19) penetrate the first side (14) and the second side of the mold base (11), respectively (15), and the first side (14) and the second side (15) are kept opposite (please observe from the first to fourth figures).

The invention provides an optical sheet injection molding module structure, wherein the coolant input channel (18) and the coolant output channel (19) are simultaneously penetrating the first side (14) of the mold base (11). Viewed in the fifth figure).

The invention provides an optical sheet injection molding module structure, wherein the coolant inlet channel (18) and the coolant outlet channel (19) simultaneously penetrate the second side (15) of the mold base (11).

The invention provides an optical sheet injection molding module structure, in which a coolant input channel (18) and a coolant output channel (19) penetrate the first side (14) and the second side of the mold base (11), respectively (15), and the first side (14) and the second side (15) are separated by an appropriate angle (please also observe from the sixth figure).

The invention provides an optical sheet injection molding module structure, wherein the cooling space (17) is a groove chamber, which is arranged inside the mold base (11), and is located at the bottom of the mold cavity (16) and the first Between the two surfaces (13), but does not penetrate the cavity (16) and the second surface (13) (please observe from the first to fourth figures at the same time).

The invention provides an optical sheet injection molding module structure, wherein the cooling space (17) is a ring groove, which is arranged inside the mold base (11), and is located at the bottom of the mold cavity (16) and the second Between the surface (13), but does not penetrate the cavity (16) and the second surface (13).

The invention provides an optical sheet injection molding module structure, wherein the cooling space (17) is provided on the second surface (13) of the mold base (11), and presents a cup-like shape (please also change Viewed in seven figures).

The invention provides an optical sheet injection molding module structure, wherein a cavity (16) is provided inside the one mold base (11), and the other mold base (11) protrudes relative to the mold cavity (16) Mo Ren.

The invention provides an optical sheet injection molding module structure, wherein the two mold bases (11) are all provided with mold cavities (16).

The invention provides an optical sheet injection molding module structure, wherein the coolant input channel (18), the cooling space (17) and the coolant output channel (19) are used to provide liquid coolant as a circulator.

The invention provides an optical sheet injection molding module structure, wherein the coolant input channel (18), the cooling space (17) and the coolant output channel (19) are used to provide gaseous coolant as a circulator.

In its actual use, in order to allow plastic materials to be injected into the mold cavity (16) more smoothly, the module structure (10) will perform a temperature-increasing action when the mold is closed, so that the entire module structure (10) Heat from 120 degrees Celsius to 180 degrees Celsius, but if you want to allow the molded optical sheet to be taken out immediately after opening the mold, you must instead cool the mold cavity (16) from the heated 180 degrees Celsius to the original 120 degrees Celsius. , And the cooling action is to use the coolant from the coolant input channel (18), so that the coolant can flow through the cooling space (17), and then flow out from the coolant output channel (19) to complete, and because of the cooling The space (17) is provided on the mold base (11) and is aligned and close to the mold cavity (16), so when cooling, the cooling space (17) can be used to face the mold cavity (17) 16) Do targeted cooling to avoid excessive cooling capacity acting on the non-mold cavity (16) position on the mold base (11), so that the cooling action needs a long time to complete, so that the rapid cooling Design helps to shorten the time required for each process, so that production can be more efficient and cost effectively reduced.

Continue to see from the eighth figure, the cooling space (17) uses the introduction of coolant, although the mold cavity (16) can be quickly cooled, but the cooling rate will still be affected by the local temperature, and some For a slight difference, if you want to accurately grasp the time required for each process, you can set a temperature sensor (20) connected to the controller (computer) on the mold base (11) to use the temperature. The rod (20) continues to receive the actual temperature of the mold cavity (16), and the controller (computer) performs fine adjustment of the mold opening and closing time each time, so that the cooling rate can be grasped more accurately, and data analysis can be obtained By.

The above is only one of the preferred embodiments of the present invention, and it should not be used to limit the scope of implementation of the present invention; that is, all equal changes and modifications made in accordance with the scope of the patent application of the present invention should still belong to this creation Within the scope of the patent.

(10)‧‧‧Module structure

(11)‧‧‧Mold base

(12)‧‧‧First surface

(13)‧‧‧Second surface

(14)‧‧‧First side

(15)‧‧‧Second side

(16) ‧‧‧ mold cavity

(17)‧‧‧cooling space

(18)‧‧‧coolant inlet

(19)‧‧‧coolant outlet

Claims (3)

An optical sheet injection molding module structure, wherein: the module structure for injection molding the optical sheet has upper and lower mold bases, and the two mold bases each have a first surface and a second surface, A first side and a second side, at least one mold base is provided with a cavity on the first surface which is recessed toward the second surface, when the module structure is closed, the first of the two mold bases is closed The mating of the surface will enable the mold cavity to be closed, and the plastic material is heated and melted by the injection molding machine and then injected into the module structure, so that the plastic material is filled in the mold cavity of the module structure. The optical sheet can be successfully manufactured through the injection molding method, and a cooling space is reserved on the mold base at a position that is directly opposite to the mold cavity, and the cooling space is moderately matched with the bottom of the mold cavity Separated, without penetrating into the cavity, on both sides of the cooling space are connected to at least one coolant input channel and at least one coolant output channel, and the cooling space is provided in the On the second surface of the mold base, a cup-shaped morphology appears. The optical sheet injection molding module structure according to claim 1, wherein the coolant input channel and the coolant output channel respectively penetrate the first side and the second side of the mold base, and the first side and the second side The sides are kept relative. The optical sheet injection molding module structure according to claim 1, wherein the coolant input channel and the coolant output channel simultaneously penetrate the first side or the second side of the mold base.

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