Extrusion type ultrathin product injection mold

Abstract

The utility model relates to an extrusion type ultrathin product injection mold which comprises an upper mold and a lower mold, the upper mold is provided with a driving device, a first inclined plate connected with the driving device and a bearing plate in which the first inclined plate can be embedded, the bearing plate is provided with an elastic piece, and the bearing plate is in contact with the first inclined plate. A forming cavity capable of forming a product casting is formed between the upper mold and the lower mold, the bearing plate is provided with an upper mold core, the lower mold is provided with a lower mold core, the upper mold core and the lower mold core are correspondingly arranged and can stretch into the forming cavity to form an injection molding gap, and the driving device drives the first inclined plate so as to adjust the contact area of the first inclined plate and the bearing plate. By means of the inclined face and the elastic piece, force can be conducted to the upper mold core more accurately, the upper mold core can move accurately relative to the lower mold core, controllable adjustment of an injection molding gap is achieved, the gap is enlarged, glue injection, air discharging and bubble reduction can be guaranteed, and the product yield is increased; the ultrathin film can be generated by reducing the gap, and the technical difficulty of low yield of the ultrathin film is solved by extrusion forming of the ultrathin film.

Description

Technical Field

[0001] The utility model belongs to the technical field of mold injection molding, and particularly relates to an extrusion type ultra-thin product injection molding mold. Background Art

[0002] Injection molding of thin films with extremely small thickness is a difficult problem in injection molds. In the market, due to the unreasonable design of the mold structure, the yield rate of the molded castings is low, which greatly affects the production cost of the enterprise, especially the position of the film in the molded casting, which needs to be finely processed and is difficult to process. For this reason, the present application designs an extrusion-type ultra-thin product injection mold, which can finely and efficiently process the film in the molded casting, and the product yield rate is extremely high. Utility Model Content

[0003] The purpose of the utility model is to provide an extrusion type injection mold for ultra-thin products. Through the cooperation between a driving device and an inclined plate, the injection gap at the film forming position is controllable and adjustable, thereby solving the technical difficulty of low yield rate of ultra-thin films, and the yield rate of the products produced is extremely high.

[0004] Based on this, the utility model provides an extrusion-type ultra-thin product injection mold, comprising an upper mold and a lower mold, the upper mold is provided with a driving device, a first inclined plate connected to the driving device, and a supporting plate in which the first inclined plate can be embedded, the supporting plate is provided with an elastic member abutting against it, the supporting plate is in contact with the first inclined plate, a molding cavity capable of forming a product casting is provided between the upper mold and the lower mold, the lower mold is provided with an injection device for injecting molding into the molding cavity, the supporting plate is provided with an upper mold core, the lower mold is provided with a lower mold core, the upper mold core and the lower mold core are arranged correspondingly, the upper mold core and the lower mold core can both extend into the molding cavity and form an injection gap, the driving device can drive the first inclined plate to perform horizontal movement, so that the contact surface between the first inclined plate and the supporting plate is controllable, and under the elastic force of the elastic member, the upper mold core moves relative to the lower mold core to adjust the injection gap.

[0005] As described above, in an extrusion-type ultra-thin product injection mold, the supporting plate is also provided with a second inclined plate, the second inclined plate is fixedly connected to the supporting plate, the first inclined plate is arranged above the second inclined plate and in contact with the second inclined plate; the elastic member is arranged below the supporting plate, and under the elastic force of the elastic member, the second inclined plate can perform vertical reciprocating motion.

[0006] In the extrusion type ultra-thin product injection mold as described above, the supporting plate is also provided with a side plate, and the upper mold core enters into the supporting plate through the side plate. The side plate and the supporting plate fix the upper mold core so that the upper mold core can move vertically.

[0007] In the above-mentioned extrusion type ultra-thin product injection mold, the supporting plate is further provided with a connecting component, and the connecting component connects the driving device and the first inclined plate.

[0008] In the above-mentioned extrusion type ultra-thin product injection mold, the injection molding device includes a flow channel as a passage and an injection nozzle for injection molding, and the direction of the injection nozzle corresponds to the injection gap.

[0009] As described above, in an extrusion-type ultra-thin product injection mold, the upper mold also includes a top plate, and the top plate is provided with a first limit block and a second limit block. The first limit block can limit the connecting component, and the second limit block can limit the first inclined plate.

[0010] In the above-mentioned extrusion type ultra-thin product injection mold, the top plate is also provided with a slide groove, and the first inclined plate is provided with a protrusion, and the protrusion moves relative to the top plate by means of the slide groove.

[0011] In the above-mentioned extrusion type ultra-thin product injection mold, the top plate is also provided with a coupling structure, the coupling structure is arranged corresponding to the first inclined plate, the coupling structure is provided with a second slide groove, and the protrusion moves relative to the top plate using the second slide groove.

[0012] In the above-mentioned extrusion type ultra-thin product injection mold, the top plate is also provided with an injection inlet, and the injection inlet is provided with an injection pipe, and the injection pipe connects the injection inlet and the injection device.

[0013] Implementing the embodiments of the utility model has the following beneficial effects:

[0014] 1. The utility model drives the first inclined plate through a driving device to adjust the contact area between the first inclined plate and the load-bearing plate, and on this basis, utilizes the inclined surface and the elastic member to convert the horizontal force into the vertical force, and can transmit the force to the upper mold core more accurately, so that the upper mold core can move accurately relative to the lower mold core, and realize the controllable adjustment of the injection gap. The increase of the injection gap can ensure the injection of glue, exhaust the air, reduce the generation of bubbles and improve the yield rate of the produced products; the reduction of the injection gap can generate an ultra-thin film, and then the ultra-thin film is formed by extrusion. The controllable adjustment of the injection gap solves the technical difficulty of the low yield rate of the ultra-thin film.

[0015] 2. The setting of the second inclined plate makes it easier to control the contact area between the first inclined plate and the supporting plate; the setting of the side plate makes it more convenient to set the upper mold core, so that the upper mold core can enter the supporting plate from the side without occupying the space in the vertical direction; the setting of the first limit block and the second limit block makes the push and pull force of the driving device controllable, and the limit block can control the push and pull distance at any time, so as to facilitate the adjustment of the injection gap at any time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a side view of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model;

[0019] Figure 3 It is a side exploded view of the utility model;

[0020] Figure 4 It is an exploded view of the overall structure of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the first inclined plate and the bearing plate of the utility model;

[0022] Figure 6 It is a cross-sectional view of the first inclined plate and the bearing plate of the utility model;

[0023] Figure 7 for Figure 2 A in the enlarged view;

[0024] Figure 8 for Figure 4 Enlarged view of point B in . DETAILED DESCRIPTION

[0025] 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 of 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.

[0026] The utility model discloses an extrusion type ultra-thin product injection mold, comprising an upper mold 2 and a lower mold 3, wherein the upper mold 2 is provided with a driving device 10, a first inclined plate 221 connected to the driving device 10, and a bearing plate 22 in which the first inclined plate 221 can be embedded, wherein the bearing plate 22 is provided with an elastic member 224 abutting against the bearing plate 22, wherein the bearing plate 22 is in contact with the first inclined plate 221, and a molding cavity 5 capable of forming a product casting is provided between the upper mold 2 and the lower mold 3, and an injection molding device for injecting molding into the molding cavity 5 is provided on the lower mold 3. The supporting plate 22 is provided with an upper mold core 220, and the lower mold 3 is provided with a lower mold core 30. The upper mold core 220 and the lower mold core 30 are arranged correspondingly. The upper mold core 220 and the lower mold core 30 can both extend into the molding cavity 5 and form an injection gap 6. The driving device 10 can drive the first inclined plate 221 to move horizontally, so that the contact surface between the first inclined plate 221 and the supporting plate 22 is controllable. Under the elastic force of the elastic member 224, the upper mold core 220 moves relative to the lower mold core 30 to adjust the injection gap 6.

[0027] Specifically, Figure 2 and Figure 6 As shown, it is an overall cross-sectional view of the utility model and a cross-sectional view of the first inclined plate 221 and the carrying plate 22. The upper mold core 220 can be inserted into the carrying plate 22 and fixedly connected to the carrying plate 22. The driving device 10 is preferably a cylinder device, which can push and pull the first inclined plate 221 horizontally; the carrying plate 22 has a groove in which the first inclined plate 221 can be embedded, and the groove of the carrying plate 22 has the same slope as the first inclined plate 221. The elastic member 224 is preferably a spring, and the number is 4. When an inclined plate 221 moves relative to the support plate 22, the contact area between them will also change. At this time, the elastic force of the elastic member 224 will also change. The specific change is that when the first inclined plate 221 is pulled by the driving device 10, the contact area is reduced, and the elastic member 224 rebounds. The elastic force generated causes the support plate 22 to move vertically upward, and the upper mold core 220 fixed on the support plate 22 also moves relative to the lower mold core 30. At this time, the injection gap between the upper mold core 220 and the lower mold core 30 increases. On the contrary, when the first inclined plate 221 is pushed by the driving device 10, the contact area between the first inclined plate 221 and the support plate 22 returns to its initial state, and the support plate 22 is pressed to move vertically downward. At this time, the elastic member 224 is pressed by the support plate 22 and is in a taut state. Figure 7-8As shown, the molding cavity 5 can mold a product casting 50, and the product casting 50 is preferably a medical tube body connector. The upper mold core 220 and the lower mold core 30 can extend into the molding cavity 5, that is, the product casting 50 is a hollow structure, and the interior is penetrated by the upper mold core 220 and the lower mold core 30. When the injection gap 6 is reduced to the thickness of the ultra-thin film, preferably 0.3 mm, the upper mold core 220 and the lower mold core 30 are extruded and formed into an ultra-thin film.

[0028] The utility model drives the first inclined plate through a driving device to adjust the contact area between the first inclined plate and the bearing plate, and on this basis utilizes the inclined surface and the elastic member to convert the horizontal force into the vertical force, and can transmit the force to the upper mold core more accurately, so that the upper mold core can perform accurate relative movement to the lower mold core, and realize controllable adjustment of the injection gap. The increase of the injection gap can ensure the injection of glue, exhaust the air, reduce the generation of bubbles and improve the yield rate of the produced products; the reduction of the injection gap can generate an ultra-thin film, and then the ultra-thin film is formed by extrusion. The controllable adjustment of the injection gap solves the technical difficulty of the low yield rate of the ultra-thin film.

[0029] Furthermore, if Figure 2 and Figure 5 As shown, the carrier plate is also provided with a second inclined plate, the second inclined plate is fixedly connected to the carrier plate, the first inclined plate is arranged above the second inclined plate and contacts the second inclined plate; the elastic member is arranged below the carrier plate 22, and the second inclined plate can perform vertical reciprocating motion under the elastic force of the elastic member 224. Specifically, the second inclined plate 222 can be embedded and installed in the carrier plate 22, and the second inclined plate 222 is fixedly connected to the carrier plate 22, preferably bolted; the first inclined plate 221 contacts the carrier plate 22, specifically contacts the second inclined plate 222 on the carrier plate 22, and the number of the second inclined plates 222 is preferably 4, corresponding to the orientation of the elastic member 224. The arrangement of the second inclined plate makes it easier to control the contact area between the first inclined plate and the carrier plate, and further improves the technical effect of the utility model, so that the upper mold core can move more accurately relative to the lower mold core, and realize the controllable adjustment of the injection gap.

[0030] Furthermore, the carrier plate is further provided with a side plate, and the upper mold core enters the carrier plate through the side plate, and the side plate and the carrier plate fix the upper mold core so that the upper mold core moves vertically. Figure 5As shown, the side plates 21 are arranged at both ends of the carrier plate 22, and the upper mold core 220 enters the side plates 21 from the horizontal direction of the outside, and then enters the carrier plate 22. Preferably, the upper mold core 220 is L-shaped, and the side plates 21 and the carrier plate 22 can fix the upper mold core 220, so that the upper mold core 220 can only perform vertical reciprocating motion. The arrangement of the side plates 21 makes it more convenient to arrange the upper mold core 220, so that the upper mold core 220 can enter the carrier plate 22 from the side without occupying the space in the vertical direction.

[0031] Furthermore, the bearing plate is further provided with a connecting assembly, and the connecting assembly connects the driving device and the first inclined plate. Figure 5 As shown, the connecting assembly 223 is preferably a rectangular parallelepiped plate, the first inclined plate 221 is connected to the connecting assembly 223 by bolts, the driving device 10 is preferably a cylinder, and the piston rod 101 of the cylinder can be inserted into the hole of the connecting assembly 223 to complete the connection. The connecting assembly 223 can make the connection between the driving device 10 and the first inclined plate 221 more stable.

[0032] Furthermore, the injection molding device includes a flow channel as a passage and an injection nozzle for injection molding, and the direction of the injection nozzle corresponds to the injection molding gap. Figure 7-Figure 8 As shown, the injection molding device is arranged on the lower mold 3 , specifically located on the same horizontal line as the molding cavity 5 , the number of the injection nozzles 70 is consistent with the molding cavity 5 , and the injection nozzles 70 inject into the molding cavity 5 to fill the molding cavity 5 .

[0033] Furthermore, the upper mold further comprises a top plate, and the top plate is provided with a first limit block and a second limit block, wherein the first limit block can limit the connection component, and the second limit block can limit the first inclined plate. The first limit block and the second limit block are provided so that the force of the push and pull of the driving device can be controlled, and the limit blocks can control the push and pull distance at any time, so as to facilitate the adjustment of the injection gap at any time.

[0034] Furthermore, the top plate is further provided with a slide groove, and the first inclined plate is provided with a protrusion, and the protrusion moves relative to the top plate by means of the slide groove. Figure 5 As shown, the shape of the slide groove 207 corresponds to that of the protrusion 2210, that is, the protrusion 2210 is embedded in the slide groove 207. When the first inclined plate 221 is driven by the driving device 10, the protrusion 2210 can move relative to the top plate 20, that is, the first inclined plate 221 can move relative to the top plate 20. The protrusion 2210 and the slide groove 207 utilize a smaller space, so that the first inclined plate 221 can move relative to the top plate 20.

[0035] Furthermore, the top plate is further provided with a coupling structure, the coupling structure is provided corresponding to the first inclined plate, the coupling structure is provided with a second slide groove, and the protrusion moves relative to the top plate by means of the second slide groove. Figure 5 As shown, the second slide groove 208 is connected with the slide groove 207, and the protrusion 2210 on the first inclined plate 221 can move horizontally in the channel formed by the slide groove 207 and the second slide groove 208, thereby achieving the technical effect of the first inclined plate moving relative to the top plate 20.

[0036] Furthermore, the top plate is also provided with an injection molding inlet, and the injection molding inlet is provided with an injection molding pipeline, and the injection molding pipeline connects the injection molding inlet and the injection molding device. Specifically, the injection molding inlet 201 is connected to an external injection molding machine, and the injection molding machine can be directly arranged above the top plate 20 and connected to the injection molding inlet 201. The injection molding machine is placed against the top plate 20, saving additional placement space.

[0037] The utility model drives the first inclined plate through a driving device to adjust the contact area between the first inclined plate and the bearing plate, and on this basis utilizes the inclined surface and the elastic member to convert the horizontal force into the vertical force, and can transmit the force to the upper mold core more accurately, so that the upper mold core can perform accurate relative movement to the lower mold core, and realize controllable adjustment of the injection gap. The increase of the injection gap can ensure the injection of glue, exhaust the air, reduce the generation of bubbles and improve the yield rate of the produced products; the reduction of the injection gap can generate an ultra-thin film, and then the ultra-thin film is formed by extrusion. The controllable adjustment of the injection gap solves the technical difficulty of the low yield rate of the ultra-thin film.

[0038] It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information. In addition, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. An extrusion type ultra-thin product injection mold, characterized in that: The invention comprises an upper mold (2) and a lower mold (3), wherein the upper mold (2) is provided with a driving device (10), a first inclined plate (221) connected to the driving device (10), and a bearing plate (22) into which the first inclined plate (221) can be embedded, the bearing plate (22) is provided with an elastic member (224) abutting against the bearing plate (22), the bearing plate (22) is in contact with the first inclined plate (221), a molding cavity (5) capable of forming a product casting is provided between the upper mold (2) and the lower mold (3), an injection molding device for injecting molding into the molding cavity (5) is provided on the lower mold (3), and the bearing plate (22) is provided with a An upper mold core (220) is provided, and the lower mold (3) is provided with a lower mold core (30). The upper mold core (220) and the lower mold core (30) are arranged correspondingly. Both the upper mold core (220) and the lower mold core (30) can extend into the molding cavity (5) and form an injection gap (6). The driving device (10) can drive the first inclined plate (221) to move horizontally, so that the contact surface between the first inclined plate (221) and the supporting plate (22) is controllable. Under the elastic force of the elastic member (224), the upper mold core (220) moves relative to the lower mold core (30) to adjust the injection gap (6).

2. The extrusion type ultra-thin product injection mold according to claim 1, characterized in that: The bearing plate (22) is further provided with a second inclined plate (222), the second inclined plate (222) being fixedly connected to the bearing plate (22), the first inclined plate (221) being arranged above the second inclined plate and in contact with the second inclined plate (222); the elastic member (224) is arranged below the bearing plate (22), and under the elastic force of the elastic member (224), the second inclined plate (222) can perform vertical reciprocating motion.

3. The extrusion type ultra-thin product injection mold according to claim 2, characterized in that: The supporting plate is also provided with a side plate (21), and the upper mold core (220) enters into the supporting plate through the side plate (21). The side plate (21) and the supporting plate (22) fix the upper mold core (220), so that the upper mold core (220) moves vertically.

4. The extrusion type ultra-thin product injection mold according to claim 3, characterized in that: The bearing plate (22) is further provided with a connecting assembly (223), wherein the connecting assembly (223) connects the driving device (10) and the first inclined plate (221).

5. The extrusion type ultra-thin product injection mold according to claim 1, characterized in that: The injection molding device comprises a flow channel (7) serving as a passage and an injection molding nozzle (70) used for injection molding, and the direction of the injection molding nozzle (70) corresponds to the injection molding gap (6).

6. The extrusion type ultra-thin product injection mold according to claim 4, characterized in that: The upper mold (2) further comprises a top plate (20), wherein the top plate (20) is provided with a first limit block (202) and a second limit block (203), wherein the first limit block (202) can perform a limit processing on the connecting component (223), and the second limit block (203) can perform a limit processing on the first inclined plate (221).

7. The extrusion type ultra-thin product injection mold according to claim 6, characterized in that: The top plate (20) is further provided with a slide groove (207), and the first inclined plate (221) is provided with a protrusion (2210), and the protrusion (2210) moves relative to the top plate (20) by means of the slide groove (207).

8. The extrusion type ultra-thin product injection mold according to claim 7, characterized in that: The top plate (20) is further provided with a coupling structure (204), the coupling structure (204) being arranged corresponding to the first inclined plate (221), the coupling structure (204) being provided with a second slide groove (208), and the protrusion (2210) moving relative to the top plate using the second slide groove (208).

9. The extrusion type ultra-thin product injection mold according to claim 6, characterized in that: The top plate (20) is further provided with an injection molding inlet (201), and the injection molding inlet (201) is provided with an injection molding pipeline (2010), and the injection molding pipeline (2010) connects the injection molding inlet (201) and the injection molding device.

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