Injection molding machine for notebook computer shell production

Abstract

The invention relates to the technical field of injection molding devices, in particular to an injection molding machine for notebook computer shell production. Injection molding liquid of the injection molding machine body is conveyed into the upper fixed mold; the lower movable mold is arranged at the bottom of the upper fixed mold; the lower mold placement mechanism comprises a fixing plate, the fixing plate is in left-right limiting sliding connection with a lower movable mold through a second limiting sliding groove in the fixing plate, and an ejection mechanism is arranged at the bottom of the lower movable mold; the driving mechanism enables the lower movable mold to be upwards extruded and tightly matched with the middle accurate position of the bottom of the upper fixed mold when the lower movable mold ascends to the preset position, so that the ejection mechanism ejects the notebook computer shell formed in the lower movable mold out when the lower movable mold descends to the preset position. According to the device, the movable mold can move to the position close to the fixed mold, then the fixed mold and the movable mold are tightly combined together through the center pressing mechanism, then dangers can be avoided in the using process, and after the notebook computer shell is formed, the forming mold can be automatically and safely pushed out.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding devices, in particular to an injection molding machine for producing notebook computer shells. Background Art

[0002] Injection molding machine is also called injection molding machine or injection machine. It is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It is divided into vertical, horizontal and all-electric types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it ejected and fill the mold cavity.

[0003] Some general laptop shell injection molding equipment manually fixes the movable mold to prevent the movable mold from being stably placed in the correct position, and some injection molds use ejection mechanisms to facilitate the removal of the molded model.

[0004] First of all, it is troublesome to manually adjust the position of the movable mold and fix it. Using a hydraulic cylinder to directly press the middle of the mold to close it may cause the mold to be not sealed enough, resulting in the outflow of injection liquid and the deterioration of the quality of the finished product.

[0005] To this end, we designed a new type of injection molding machine for the production of laptop computer shells, which can move the movable mold near the fixed mold first, and then use a central clamping mechanism to tightly close the fixed mold and the movable mold together. Then, the existing dangers can be avoided during use, and after the laptop shell is molded, the molding mold can be automatically and safely pushed out. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the defects of the prior art. The present invention proposes an injection molding machine for producing laptop computer shells, which can make the movable mold move near the fixed mold first, and then use a central clamping mechanism to tightly close the fixed mold and the movable mold together, so that the existing dangers can be avoided during use, and after the laptop shell is formed, the molding mold can be automatically and safely pushed out.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is: an injection molding machine for producing a notebook computer shell, comprising:

[0008] Injection molding machine body;

[0009] An upper fixed mold, into which the injection liquid of the injection molding machine body is transferred;

[0010] A lower movable mold is placed at the bottom of the upper fixed mold;

[0011] The lower mold placement mechanism comprises a fixed plate, the fixed plate is connected to the lower movable mold by a second limiting sliding groove on the fixed plate, and an ejection mechanism is arranged at the bottom of the lower movable mold;

[0012] The driving mechanism enables the lower movable mold to rise to a preset position and to be tightly fitted with the bottom center of the upper fixed mold to squeeze upward at an accurate position, so that when the lower movable mold descends to the preset position, the ejection mechanism ejects the laptop shell formed in the lower movable mold, and when a person or other heavy objects press on the lower movable mold or the fixed plate when the lower movable mold initially rises, the lower movable mold and the fixed plate are separated from each other to facilitate observation and cleaning of foreign objects in the second limit slide groove and to prevent objects or hands from being clamped between the lower movable mold and the fixed plate during the initial rise.

[0013] Furthermore, the ejection mechanism includes a guide column, at least two matching grooves are provided on the inner bottom of the lower movable mold, a fourth limiting slide groove is provided on the inner bottom of the matching groove, a top pressure plate is arranged in the matching groove, the bottom of the top pressure plate is fixedly connected with a guide column, the fourth limiting slide groove is slidingly connected with the guide column in an upper and lower limiting manner, the bottoms of the plurality of guide columns are commonly fixedly connected with the second bottom plate, a third limiting slide groove is provided in the second limiting slide groove, the middle part of the guide column is slidingly connected in the third limiting slide groove in a left and right limiting manner, an elastic telescopic part is connected between the bottom of the fixed plate and the second bottom plate, when the second bottom plate descends to a preset position, the second bottom plate is squeezed against the outside, and the top pressure plate pushes out the notebook shell model in the lower movable mold.

[0014] Further, the driving mechanism includes a first bottom plate, both sides of the top of the first bottom plate are fixedly connected to a first L-shaped plate, the backs of the two first L-shaped plates are fixedly connected to a back plate, the top plates of the two first L-shaped plates are limitedly rotatably connected to the first bottom plate with a threaded rod, the outer wall of the threaded rod is threadedly connected to the first sliding plate, the first sliding plate is limitedly slidably connected in the first limiting sliding groove of the back plate, the first limiting sliding groove is also limitedly slidably connected to the second sliding plate, the bottom of the second sliding plate is limitedly slidably connected to the third sliding plate left and right, the third sliding plate is connected to the first sliding plate with a second elastic member and a hinge rod, and the two third sliding plates are elastically connected to the second wedge-shaped plate on the sides close to each other;

[0015] The left and right sides of the lower movable mold are both fixedly connected with first wedge plates, and when the two second wedge plates are close to each other, they cooperate with the two first wedge plates to drive the lower movable mold to move upward in the middle, so that the lower movable mold and the upper fixed mold are closely fitted;

[0016] The two second sliding plates are both fixedly connected with a connecting plate, and the bottoms of the two connecting plates are fixedly connected to the two sides of the fixed plate;

[0017] The two back plates are fixedly connected to the limit baffles, the second sliding plate rises to a preset position and squeezes the bottom of the limit baffle, and the second wedge plate moves toward the first wedge plate under the action of the hinge rod and the second elastic member;

[0018] The utility model also comprises a rotating mechanism which enables the two threaded rods to rotate synchronously.

[0019] Furthermore, the second wedge plate is connected to the bottom of the second sliding plate in a left-right limited sliding manner, and a first elastic member is connected between the third sliding plate and the second wedge plate.

[0020] Furthermore, the rotating mechanism comprises a motor, the outer walls of the two threaded rods are jointly sleeved with a gear matching belt via a belt matching gear, and the power output end of the motor is connected to one of the threaded rods.

[0021] Furthermore, support plates are fixedly connected to both sides of the bottom of the first base plate, a mounting plate is fixedly connected between the two support plates, the two threaded rods are limitedly rotatably connected to the mounting plate, and the motor is fixedly mounted on the mounting plate.

[0022] Furthermore, it also includes a second L-shaped plate, and the upper fixed mold is fixedly mounted on the second L-shaped plate.

[0023] Furthermore, a liquid tank and a water pump are fixedly mounted on the second L-shaped plate, a fourth soft pipe is connected between the output end of the water pump and the liquid tank, a second soft pipe is connected to the liquid tank, a side of the second soft pipe away from the liquid tank is connected to a cooling channel in the first wedge plate on the right, the two cooling channels in the first wedge plates are connected to the cooling channel in the lower movable mold, so that the liquid in the cooling channel changes the temperature of the lower movable mold, the input end of the water pump is connected to the first soft pipe, and a side of the first soft pipe away from the water pump is connected to the cooling channel in the first wedge plate on the left.

[0024] Furthermore, a heater or a refrigerator is provided on the liquid tank.

[0025] Furthermore, the injection liquid delivery port of the injection molding machine body is connected to a third soft pipe, and the side of the third soft pipe away from the injection molding machine body is connected to the interior of the upper fixed mold for injection molding operation.

[0026] Compared with the prior art, the beneficial effects of the present invention include:

[0027] Before the mold closing operation, it is possible to first check whether there is any foreign matter between the lower movable mold and the second limiting chute that affects the position of the lower movable mold, and it is also convenient to remove the foreign matter in the second limiting chute and clean the second limiting chute;

[0028] When moving in the early stage of mold closing, you can also observe whether the lower movable mold is lifted to determine whether the second limit slide and the lower movable mold are in normal state;

[0029] The second wedge plate and the first wedge plate before mold closing are roughly adjusted so that the lower movable mold is placed in the center;

[0030] During the film closing operation, the lower movable mold is first moved to the bottom position of the upper fixed mold, and then the second wedge plate is used to squeeze the lower movable mold upward and tightly pressed on the bottom of the upper fixed mold, so that the injection liquid between the upper fixed mold and the lower movable mold will not leak, and the lower movable mold and the upper fixed mold have a certain compatibility. When the lower movable mold and the upper fixed mold are not so intact, the upper fixed mold and the lower movable mold can still be stably sealed together;

[0031] After the injection molding is completed, when moving downward, the lower movable mold moves downward under gravity or drag, and the notebook shell formed in the lower movable mold is automatically and safely pushed up, completing high-safety and high-precision sealing injection molding operations and high-safety discharging operations. The device is easy to maintain in the later stage and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the accompanying drawings, the same reference numerals are used to refer to the same components. Among them:

[0033] Figure 1 A schematic diagram showing the structure of the present invention from a first viewing angle;

[0034] Figure 2 A schematic diagram showing the structure of the present invention from a second viewing angle;

[0035] Figure 3 A schematic diagram showing the structure of the present invention from a third viewing angle;

[0036] Figure 4 A schematic diagram showing the structure of the present invention from a fourth viewing angle;

[0037] Figure 5 The present invention shows Figure 1 A schematic diagram of the structure enlarged at A;

[0038] Figure 6 The present invention shows Figure 1 A schematic diagram of the structure enlarged at B;

[0039] Figure 7 The present invention shows Figure 3 Schematic diagram of the structure enlarged at C;

[0040] Figure 8 A schematic cross-sectional view of the lower movable mold of the present invention is shown;

[0041] Fig. 9 The present invention shows Figure 4 Schematic diagram of the enlarged structure at D.

[0042] Numbers in the figure: 1, first bottom plate; 2, support plate; 3, mounting plate; 4, first L-shaped plate; 5, back plate; 6, limit baffle; 7, threaded rod; 8, first limit slide; 9, first sliding plate; 10, second sliding plate; 11, second bottom plate; 12, elastic telescopic member; 13, guide column; 14, fixed plate; 15, second L-shaped plate; 16, water pump; 17, liquid tank; 18, first soft pipe; 19, second soft pipe; 20, upper fixed mold; 21, Injection molding machine body; 22. Motor; 23. Gear matching belt; 24. Third flexible pipe; 25. Lower movable mold; 26. Second limiting slide groove; 27. First wedge plate; 28. Connecting plate; 29. ​​Second wedge plate; 30. First elastic member; 31. Second elastic member; 32. Articulated rod; 33. Third sliding plate; 34. Third limiting slide groove; 35. Fourth limiting slide groove; 36. Top pressure plate; 37. Matching groove; 38. Cooling channel; 39. Fourth flexible pipe. DETAILED DESCRIPTION

[0043] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction to the technical solution of the present invention.

[0044] Embodiment 1:

[0045] This embodiment mainly includes an injection molding machine body 21 , a third soft pipe 24 , an upper fixed mold 20 , a lower movable mold 25 , and a fixed plate 14 .

[0046] Key References Figure 1 The injection molding machine body 21 can transfer the heated injection liquid through the third soft pipe 24 to the upper fixed mold 20 for injection operation through the spiral material transfer mechanism. This technology is a prior art and will not be described again.

[0047] Key References Figure 1 and Figure 6 , the upper fixed mold 20 is placed on the top of the second limiting slide groove 26.

[0048] Key References Figure 1 , Figure 5 , Figure 6The first bottom plate 1 is fixedly connected to the first L-shaped plates 4 on both sides of the top, and the backs of the two first L-shaped plates 4 are fixedly connected to the back plates 5. The top plates of the two first L-shaped plates 4 and the first bottom plate 1 are both limitedly rotatably connected with threaded rods 7. The outer wall of the threaded rods 7 is threadedly connected with the first sliding plate 9. The first sliding plate 9 is slidably connected in the first limiting groove 8 on the back plate 5 in an up-and-down limiting manner. The first limiting groove 8 is also slidably connected to the second sliding plate 10 in an up-and-down limiting manner. The second sliding plate 10 is placed on the top of the first sliding plate 9. The bottom of the second sliding plate 10 is slidably connected to the third sliding plate 33 in a left-and-right limiting manner. The third sliding plate 33 is also placed on the top of the first sliding plate 9. The third sliding plate 33 A second elastic member 31 and a hinge rod 32 are connected between the first sliding plate 9, and the two third sliding plates 33 are connected to the second wedge plate 29 on the side close to each other through the first elastic member 30, and the second wedge plate 29 is also connected to the bottom of the second sliding plate 10 for left and right limited sliding. It should be noted that the second elastic member 31 has a strong enough elastic force to support the lower movable mold 25 and the fixed plate 14 containing the injection molded parts, but cannot support particularly heavy objects. When supporting particularly heavy objects and the first sliding plate 9 keeps moving upward, the two third sliding plates 33 approach each other under the action of the second elastic member 31 and the hinge rod 32, that is, the two second wedge plates 29 are driven to approach each other.

[0049] Key References Figure 6 The two second sliding plates 10 are fixedly connected to a connecting plate 28 on one side close to each other, and the bottoms of the two connecting plates 28 are commonly fixedly connected to a fixed plate 14. A second limiting sliding groove 26 is provided in the fixed plate 14. The second limiting sliding groove 26 is connected to a lower movable mold 25 in a left and right limiting sliding connection. The left and right sides of the lower movable mold 25 are fixedly connected to a first wedge plate 27.

[0050] Key References Figure 1 and Figure 6 The left and right sides of the lower movable mold 25 are fixedly connected with the first wedge plates 27. When the two second wedge plates 29 approach each other, they cooperate with the two first wedge plates 27 to drive the lower movable mold 25 to move upward in the middle, so that the lower movable mold 25 and the upper fixed mold 20 are closely fitted;

[0051] Key References Figure 1 The back plate 5 is fixedly connected to the limit baffle 6, the second sliding plate 10 rises to the preset position and squeezes the bottom of the limit baffle 6, and the second wedge plate 29 moves toward the first wedge plate 27 under the action of the hinge rod 32 and the second elastic member 31. At this time, the lower movable mold 25 that rises to the preset position is tightly squeezed with the upper fixed mold 20 in the center, and under the action of the first elastic member 30, there is sufficient compatibility, so that the left and right sides of the lower movable mold 25 can move left and right and up and down adaptively, thereby better sealing the injection molding model operation.

[0052] Key References Figure 2 The outer walls of the two threaded rods 7 are jointly covered with a gear matching belt 23 through a belt matching gear, and the power output end of the motor 22 is connected to one of the threaded rods 7.

[0053] Key References Figure 2 The first bottom plate 1 is fixedly connected to support plates 2 on both sides of the bottom, a mounting plate 3 is fixedly connected between the two support plates 2, the bottoms of the two threaded rods 7 are limitedly connected to the mounting plate 3 for rotation, the outer walls of the two threaded rods 7 placed between the first bottom plate 1 and the mounting plate 3 are jointly covered with a gear matching belt 23 through a belt matching gear, the power output end of the motor 22 is connected to one of the threaded rods 7, and the motor 22 is fixedly mounted on the mounting plate 3.

[0054] And when it is necessary to observe whether there is any foreign matter in the second limit chute 26 at the initial stage, it is necessary to first press the fixed plate 14 with a heavy object, and then start the motor 22 to make the first sliding plate 9 rise. At this time, the second sliding plate 10 and the fixed plate 14 will not move under the action of the heavy object, and the two second wedge plates 29 are driven close together under the action of the second elastic member 31 and the hinge rod 32. The two second wedge plates 29 cooperate with the two first wedge plates 27 to lift the lower movable mold 25, so that it can penetrate the second limit chute 26 to see if there is any foreign matter, and this action is also convenient for observing whether there is any problem with the fixed plate 14 and the lower movable mold 25 before closing the mold. And in case of misoperation, when the clothes or hands of the personnel are between the second limit chute 26 and the lower movable mold 25, the automatic lifting of the lower movable mold 25 protects the safety of the personnel. The lower movable mold 25 and the second limit slide groove 26 can be separated in the early stage to control risks, improve personnel safety, prevent foreign matter from being present in the second limit slide groove 26, and facilitate automatic inspection of whether there are problems with the lower movable mold 25 and the fixed plate 14, which greatly protects the safety of the device and personnel and prolongs the service life of the device. In addition, the lower movable mold 25 can be separated from the fixed plate 14, which is also convenient for replacing the lower movable mold 25.

[0055] Embodiment 2: Based on Embodiment 1, a technical means is added to facilitate taking out the molded notebook shell after the injection molding is completed.

[0056] Key References Figure 3 , Figure 7 , Figure 8At least two matching grooves 37 are provided at the inner bottom of the lower movable mold 25, and a fourth limiting slide groove 35 is provided at the bottom of the matching groove 37. A top pressure plate 36 is arranged in the matching groove 37, and a guide column 13 is fixedly connected to the bottom of the top pressure plate 36. The fourth limiting slide groove 35 is connected to the guide column 13 in an upper and lower limiting sliding connection. The bottoms of multiple guide columns 13 are commonly fixedly connected to the second bottom plate 11, and a third limiting slide groove 34 is provided in the second limiting slide groove 26. The middle part of the guide column 13 is slidingly connected to the third limiting slide groove 34 in a limiting left and right manner. An elastic telescopic member 12 is connected between the bottom of the fixed plate 14 and the second bottom plate 11. When the second bottom plate 11 descends to a preset position, it is squeezed with the first bottom plate 1, and the top pressure plate 36 pushes out the notebook shell model in the lower movable mold 25.

[0057] The other structures of the second embodiment are the same as those of the first embodiment.

[0058] Embodiment 3: Based on Embodiment 2, a technical means is added to facilitate cooling or maintain a high temperature in the mold.

[0059] Key References Figure 1 The upper fixed mold 20 is fixedly mounted on the second L-shaped plate 15 .

[0060] Key References Figure 1 , Figure 4 , Fig. 9 A liquid tank 17 and a water pump 16 are fixedly mounted on the second L-shaped plate 15. A fourth soft pipe 39 is connected between the output end of the water pump 16 and the liquid tank 17. A second soft pipe 19 is connected to the liquid tank 17. The side of the second soft pipe 19 away from the liquid tank 17 is connected to the cooling channel 38 in the first wedge plate 27 on the right. The cooling channels 38 in the two first wedge plates 27 are connected to the cooling channel 38 in the lower movable mold 25, so that the liquid in the cooling channel 38 changes the temperature of the lower movable mold 25. The input end of the water pump 16 is connected to the first soft pipe 18. The side of the first soft pipe 18 away from the water pump 16 is connected to the cooling channel 38 in the first wedge plate 27 on the left.

[0061] The liquid tank 17 is provided with a heater or a refrigerator.

[0062] The liquid in the liquid tank 17 is preferably a liquid with a high boiling point and a low freezing point. The heater heats the liquid and the refrigerator cools the liquid.

[0063] The other structures of the third embodiment are the same as those of the second embodiment.

[0064] In the specific implementation, firstly, the guide column 13 at the bottom of the lower movable mold 25 is slidably connected to the third limit slide groove 34 to complete the front and rear position determination of the lower movable mold 25. Then, the bottoms of the plurality of guide columns 13 are fixedly installed with the second bottom plate 11, and the elastic expansion member 12 is fixedly installed between the second bottom plate 11 and the fixed plate 14.

[0065] At this time, a heavy object is placed on the fixed plate 14, and the motor 22 is started. At this time, the lower movable mold 25 is lifted from the second limiting chute 26, and it can be observed whether there is any foreign matter in the second limiting chute 26. After confirming that there is no foreign matter, the heavy object is removed, and the lower movable mold 25 falls back into the second limiting chute 26, completing the preliminary centering of the lower movable mold 25 and observing whether there is any foreign matter in the second limiting chute 26 to avoid problems in the later mold closing.

[0066] Then continue to start the motor 22 to squeeze the second sliding plate 10 and the limit baffle 6. At this time, continue to start the motor 22 to make the two second wedge plates 29 approach each other and cooperate with the corresponding first wedge plates 27 to drive the lower movable mold 25 to be centered again and move upward, so that the lower movable mold 25 has a certain compatibility and fits tightly with the bottom of the upper fixed mold 20.

[0067] At this time, the injection molding machine body 21 is started to transfer the injection liquid to the upper fixed mold 20 and the lower movable mold 25. When the temperature is not high enough, the heater on the liquid tank 17 is started to make the upper fixed mold 20 and the lower movable mold 25 have a certain temperature to prevent the injection liquid from solidifying prematurely. After the injection molding is completed, the refrigerator is started to cool the injection liquid. After the temperature is lowered and the molding is completed, the motor 22 is started and reversed to move the lower movable mold 25 downward. After moving down to the preset position, the second bottom plate 11 at the bottom of the lower movable mold 25 is pressed on the first bottom plate 1, and the top pressure plate 36 pushes out the formed notebook shell. This makes it easy to take out the finished notebook shell.

[0068] The technical scope of the present invention is not limited to the contents in the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. Injection molding machine for notebook computer shell production, characterized in that: include: Injection molding machine body (21); An upper fixed mold (20), into which the injection liquid of the injection molding machine body (21) is transferred; A lower movable mold (25) is placed at the bottom of the upper fixed mold (20); The lower mold placement mechanism comprises a fixed plate (14), the fixed plate (14) is slidably connected to a lower movable mold (25) in a left-right limiting manner through a second limiting slide groove (26) thereon, and an ejection mechanism is arranged at the bottom of the lower movable mold (25); The driving mechanism enables the lower movable mold (25) to rise to a preset position and to be closely matched with the bottom center of the upper fixed mold (20) by pressing upward, so that when the lower movable mold (25) descends to the preset position, the ejection mechanism ejects the notebook shell formed in the lower movable mold (25), and when a person or other heavy objects press on the lower movable mold (25) or the fixed plate (14) when the lower movable mold (25) is initially raised, the lower movable mold (25) and the fixed plate (14) are separated from each other to facilitate observation and cleaning of foreign objects in the second limiting slide groove (26) and to prevent objects or hands from being caught between the lower movable mold (25) and the fixed plate (14) during the initial rise.

2. The injection molding machine for producing a notebook computer shell according to claim 1, characterized in that: The ejection mechanism comprises a guide column (13), at least two matching grooves (37) are provided at the inner bottom of the lower movable mold (25), a fourth limiting sliding groove (35) is provided at the inner bottom of the matching groove (37), a top pressure plate (36) is arranged in the matching groove (37), the bottom of the top pressure plate (36) is fixedly connected to the guide column (13), the fourth limiting sliding groove (35) is connected to the guide column (13) in an upper and lower limiting sliding manner, and the bottoms of the plurality of guide columns (13) are fixedly connected together. A second bottom plate (11) is provided, a third limiting groove (34) is provided in the second limiting groove (26), the middle part of the guide column (13) is slidably connected to the third limiting groove (34) in a left-right limiting manner, an elastic telescopic member (12) is connected between the bottom of the fixed plate (14) and the second bottom plate (11), when the second bottom plate (11) descends to a preset position, the second bottom plate (11) is pressed against the outside, and the top pressure plate (36) pushes out the notebook shell model in the lower movable mold (25).

3. The injection molding machine for producing a notebook computer shell according to claim 2, characterized in that: The driving mechanism comprises a first bottom plate (1), both sides of the top of the first bottom plate (1) are fixedly connected with a first L-shaped plate (4), the backs of the two first L-shaped plates (4) are fixedly connected with a back plate (5), the top plates of the two first L-shaped plates (4) are both limitedly rotatably connected with a threaded rod (7) and the first bottom plate (1), the outer wall of the threaded rod (7) is threadedly connected with a first sliding plate (9), the first sliding plate (9) is slidably connected in a first limiting sliding groove (8) on the back plate (5) in an up-and-down limiting manner, the first limiting sliding groove (8) is also slidably connected with a second sliding plate (10) in an up-and-down limiting manner, the bottom of the second sliding plate (10) is slidably connected with a third sliding plate (33) in a left-and-right limiting manner, a second elastic member (31) and a hinge rod (32) are connected between the third sliding plate (33) and the first sliding plate (9), and the two third sliding plates (33) are elastically connected with a second wedge plate (29) on the sides close to each other; The left and right sides of the lower movable mold (25) are both fixedly connected with first wedge plates (27). When the two second wedge plates (29) are close to each other, they cooperate with the two first wedge plates (27) to drive the lower movable mold (25) to move upward in the middle, so that the lower movable mold (25) and the upper fixed mold (20) are closely fitted. The two second sliding plates (10) are both fixedly connected with a connecting plate (28), and the bottoms of the two connecting plates (28) are fixedly connected to two sides of the fixed plate (14); The two back plates (5) are both fixedly connected to a limit baffle (6); the second sliding plate (10) rises to a preset position and is pressed against the bottom of the limit baffle (6); and under the action of the hinge rod (32) and the second elastic member (31), the second wedge plate (29) moves toward the first wedge plate (27); It also comprises a rotating mechanism which enables the two threaded rods (7) to rotate synchronously.

4. The injection molding machine for producing a notebook computer shell according to claim 3, characterized in that: The second wedge plate (29) is connected to the bottom of the second sliding plate (10) in a left-right limited sliding manner, and a first elastic member (30) is connected between the third sliding plate (33) and the second wedge plate (29).

5. The injection molding machine for producing a notebook computer shell according to claim 4, characterized in that: The rotating mechanism comprises a motor (22), the outer walls of the two threaded rods (7) are jointly sleeved with a gear matching belt (23) via a belt matching gear, and the power output end of the motor (22) is connected to one of the threaded rods (7).

6. The injection molding machine for producing a notebook computer shell according to claim 5, characterized in that: Support plates (2) are fixedly connected to both sides of the bottom of the first base plate (1), a mounting plate (3) is fixedly connected between the two support plates (2), the two threaded rods (7) are both connected to the mounting plate (3) in a limited rotation manner, and the motor (22) is fixedly mounted on the mounting plate (3).

7. The injection molding machine for producing a notebook computer shell according to claim 6, characterized in that: It also includes a second L-shaped plate (15), and the upper fixed mold (20) is fixedly mounted on the second L-shaped plate (15).

8. The injection molding machine for producing a notebook computer shell according to claim 7, characterized in that: A liquid box (17) and a water pump (16) are fixedly mounted on the second L-shaped plate (15); a fourth soft pipe (39) is connected between the output end of the water pump (16) and the liquid box (17); a second soft pipe (19) is connected to the liquid box (17); a side of the second soft pipe (19) away from the liquid box (17) is connected to a cooling channel (38) in the first wedge-shaped plate (27) on the right; the cooling channels (38) in the two first wedge-shaped plates (27) are connected to the cooling channels (38) in the lower movable mold (25), so that the liquid in the cooling channels (38) changes the temperature of the lower movable mold (25); an input end of the water pump (16) is connected to the first soft pipe (18); a side of the first soft pipe (18) away from the water pump (16) is connected to the cooling channel (38) in the first wedge-shaped plate (27) on the left.

9. The injection molding machine for producing a notebook computer shell according to claim 8, characterized in that: The liquid tank (17) is provided with a heater or a refrigerator.

10. The injection molding machine for producing a notebook computer shell according to claim 1, characterized in that: The injection liquid delivery port of the injection molding machine body (21) is connected to a third soft pipe (24), and the side of the third soft pipe (24) away from the injection molding machine body (21) is connected to the interior of the upper fixed mold (20) for injection molding operation.

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