Discharging structure for taking out formed material sheets in mold

Abstract

The invention discloses a discharging structure for taking out a formed material sheet in a mold, and relates to the technical field of injection molding. A hydraulic cylinder is mounted at the top of the fixing frame; the telescopic end of the hydraulic cylinder penetrates through the fixing frame and is connected with an upper mold; a lower mold is arranged at the top of the injection molding table and is matched with the upper mold; a lifting plate is fixed on the rear surface of the upper mold; an ejection assembly is arranged at the bottom of the injection molding table and matched with the rotating rod and the lower mold, a discharging structure is arranged on the injection molding table, and a linkage mechanism is arranged between the rotating rod and the lifting plate and matched with the rotating rod, so that the rotating rod is conveniently driven to rotate, and then the ejection assembly and the discharging structure are driven to operate synchronously. The injection molding part formed in the lower mold is conveniently ejected out, the ejected injection molding part is removed from the lower mold, the discharging efficiency of the formed injection molding part is effectively improved, and then the production efficiency of injection molding operation is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of injection molding, and in particular relates to a material removal structure for taking out a molded material sheet in a mold. Background Art

[0002] Injection molding machine, also known as injection molding machine or injection machine, 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] At present, in the existing injection molding machines, after the injection molded parts are cooled and formed, it is necessary to manually pick out the molded injection molded parts from the molding cavity of the mold. The workload is large, time-consuming and labor-intensive, and the efficiency is low, which affects the production efficiency of the injection molding operation. At the same time, it is easy to cause damage to the injection molded parts and affect the quality of the injection molded parts. Some machines use an ejection mechanism to eject the cooled and formed injection molded parts from the mold, and then manually remove the ejected injection molded parts. The degree of automation is low and the workload of the staff is increased.

[0004] To this end, we designed a material removal structure for removing the molded blanks from the mold to solve the above problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a material discharge structure for taking out a molded sheet in a mold, comprising an injection molding table, a fixing frame is fixed to the rear side of the injection molding table, a hydraulic cylinder is installed on the top of the fixing frame, the telescopic end of the hydraulic cylinder passes through the fixing frame and is connected to an upper mold, a lower mold is arranged on the top of the injection molding table, the lower mold cooperates with the upper mold, a lifting plate is fixed to the rear surface of the upper mold, a rotating rod is arranged on the lower side of the injection molding table, an ejection assembly is arranged at the bottom of the injection molding table, the ejection assembly cooperates with the rotating rod and the lower mold, a material discharge structure is arranged on the injection molding table, the material discharge structure cooperates with the rotating rod, a linkage mechanism is arranged between the rotating rod and the lifting plate, and the linkage mechanism comprises:

[0007] A lifting rack is fixed at the rear end of the lifting plate, a support shaft is rotatably provided on the rear surface of the fixed frame, a first gear is provided on the support shaft, the first gear is meshed with the lifting rack, a second gear is provided on the rotating rod, and a transmission assembly is provided between the rear end of the rotating rod and the rear end of the support shaft.

[0008] The ejection assembly includes a winding roller, a connecting rope, a cylinder, a piston rod, an upper push plate and a spring. The winding roller is sleeved on the rotating rod and is arranged on the front side of the second gear. The connecting rope is wound on the winding roller. The cylinder is fixed to the bottom of the injection molding table. A through hole is opened at the bottom of the mold cavity of the lower mold. The through hole passes through the bottom of the injection molding table and is connected with the inner cavity of the cylinder.

[0009] The piston rod is movably arranged in the cylinder body, the cross-section of the piston rod is a T-shaped structure, and the upper part of the piston rod is movably matched with the through hole, the upper push plate is movably arranged in the mold cavity of the lower mold, the upper end of the piston rod is fixedly connected to the bottom of the upper push plate, the spring is arranged inside the cylinder body, and the two ends of the spring are respectively fixedly connected to the lower end of the piston rod and the inner bottom of the cylinder body.

[0010] A round hole is passed through the bottom of the cylinder, and the connecting rope is movably matched with the round hole. The movable end of the connecting rope passes through the round hole and the spring and is connected to the lower end of the piston rod.

[0011] The unloading structure includes a first guide block, a second guide block, a first rack, a second rack, a first connecting rod, a first fixed rod, a side push plate, a second connecting rod, a second fixed rod and a bearing plate. A rectangular groove runs through the rear side of the top of the injection molding table, and a guide rod is fixed inside the rectangular groove. The first guide block and the second guide block are both movably mounted on the guide rod, and the first guide block and the second guide block are both movably matched with the rectangular groove.

[0012] The first rack and the second rack are respectively arranged on the upper and lower sides of the second gear, and the first rack and the second rack are both meshed with the second gear, the first fixing rod is fixedly connected between the first guide block and the first rack, the first connecting rod is fixed on the top of the first guide block, the side push plate is fixed on the end of the first connecting rod away from the first guide block, and the side push plate cooperates with the upper surface of the lower mold, and the side push plate is arranged on the right side of the lower mold.

[0013] The second fixing rod is fixed between the bottom of the second guide block and the second rack, the second connecting rod is fixed on the top of the second guide block, the bearing plate is fixed at one end of the second connecting rod away from the second guide block, and the bearing plate is arranged on the left side of the lower mold.

[0014] The fixing frame is penetrated by a through slot, a vertical rod is fixed inside the through slot, the vertical rod penetrates the lifting plate, and the lifting plate and the vertical rod are slidably matched, an injection tube is embedded on one side of the top of the upper mold, the injection tube and the through slot cooperate with each other, and a valve is arranged on the injection tube.

[0015] A first support plate is fixed at the bottom of the injection molding table, a second support plate is fixed at the bottom of the fixing frame, the rotating rod passes through the second support plate, the rotating rod is rotationally matched with the second support plate, and the front end of the rotating rod is rotationally connected to the first support plate.

[0016] The present invention has the following beneficial effects:

[0017] The present invention facilitates the up and down movement adjustment of the upper mold by means of a hydraulic cylinder, and realizes the injection molding of the material sheet in combination with the lower mold. In the process of the hydraulic cylinder adjusting the up and down movement of the upper mold, the lifting plate is driven to move up and down synchronously. With the up and down movement of the lifting plate, the lifting rack is driven to move. Under the meshing action of the lifting rack and the first gear, the support shaft is driven to rotate, and in combination with the transmission component, the rotating rod is driven to rotate.

[0018] The ejector assembly and the blanking structure cooperate with the rotating rod, thereby driving the ejector assembly and the blanking structure to run synchronously, so that the injection-molded sheet in the cavity of the lower mold is ejected by the ejector assembly, and the sheet is removed from the lower mold by the blanking structure, so as to achieve the purpose of blanking the imaged injection-molded sheet. This solves the problem that in the existing injection molding machine, after the injection molded part is cooled and formed, it is necessary to manually pick the molded injection molded part out of the molding cavity of the mold, which has a large workload, is time-consuming and labor-intensive, and has low efficiency, affects the production efficiency of the injection molding operation, and is easy to cause damage to the injection molded parts, affecting the quality of the injection molded parts. At the same time, it solves the problem that some of the existing injection molding equipment uses an ejector mechanism to eject the cooled and formed injection molded parts from the mold, and then manually removes the ejected injection molded parts, which has a low degree of automation and increases the workload of the staff.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 3 for Figure 1 Schematic diagram of the back structure;

[0024] Figure 4 It is a structural schematic diagram of the present invention in an injection molding state;

[0025] Figure 5 for Figure 4 A front view of

[0026] Figure 6 for Figure 5 Schematic diagram of the structure of the middle section BB;

[0027] Figure 7 for Figure 6 Schematic diagram of the structure of CC in the middle section;

[0028] Figure 8 for Figure 6 Schematic diagram of the enlarged structure at D in the middle;

[0029] Fig. 9 for Figure 7 Schematic diagram of the structure of EE in the middle section;

[0030] Fig.10 for Fig. 9 The enlarged structural diagram at F in the middle;

[0031] Fig.11 for Figure 4 Schematic diagram of the back structure;

[0032] Fig.12 for Fig.11 Schematic diagram of the enlarged structure at G in the middle;

[0033] Fig.13 for Fig.11 A schematic diagram of the structure from another perspective;

[0034] Fig.14 It is a structural schematic diagram of the cooperation state between the second gear and the first rack and the second rack in the present invention;

[0035] Fig.15 for Fig.14 Schematic diagram of the structure from another perspective.

[0036] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0037] 1. Injection molding table; 2. Fixed frame; 3. Hydraulic cylinder; 4. Upper mold; 5. Lower mold; 6. Lifting plate; 7. Rotating rod; 8. Lifting rack; 9. Support shaft; 10. First gear; 11. Transmission assembly; 12. Second gear; 13. Winding roller; 14. Connecting rope; 15. Cylinder; 16. Piston rod; 17. Upper push plate; 18. Spring; 19. Rectangular groove; 20. Guide rod; 21. First guide block; 22. Second guide block; 23. First rack; 24. Second rack; 25. First connecting rod; 26. First fixed rod; 27. Side push plate; 28. Second connecting rod; 29. ​​Second fixed rod; 30. Load-bearing plate; 32. Vertical rod; 33. First support plate; 34. Second support plate. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0040] See also Figure 1-Figure 15 As shown, the present invention is a material discharge structure for taking out the molded sheet in the mold, including an injection molding table 1, a fixing frame 2 is fixed to the rear side of the injection molding table 1, a hydraulic cylinder 3 is installed on the top of the fixing frame 2, the telescopic end of the hydraulic cylinder 3 passes through the fixing frame 2 and is connected to the upper mold 4, a lower mold 5 is arranged on the top of the injection molding table 1, the lower mold 5 cooperates with the upper mold 4, a lifting plate 6 is fixed to the rear surface of the upper mold 4, a rotating rod 7 is arranged on the lower side of the injection molding table 1, an ejection assembly is arranged at the bottom of the injection molding table 1, the ejection assembly cooperates with the rotating rod 7 and the lower mold 5, a material discharge structure is arranged on the injection molding table 1, the material discharge structure cooperates with the rotating rod 7, a linkage mechanism is arranged between the rotating rod 7 and the lifting plate 6, and the linkage mechanism includes:

[0041] A lifting rack 8 is fixed at the rear end of the lifting plate 6. A support shaft 9 is rotatably provided on the rear surface of the fixed frame 2. A first gear 10 is provided on the support shaft 9. The first gear 10 is meshed with the lifting rack 8. A second gear 12 is provided on the rotating rod 7. A transmission assembly 11 is provided between the rear end of the rotating rod 7 and the rear end of the support shaft 9.

[0042] In the above structure, the hydraulic cylinder 3 is used to adjust the up and down movement of the upper mold 4, and combined with the lower mold 5, the injection molding of the material sheet is realized. In the process of the hydraulic cylinder 3 adjusting the up and down movement of the upper mold 4, the lifting plate 6 is driven to move up and down synchronously. With the up and down movement of the lifting plate 6, the lifting rack 8 is driven to move. Under the meshing action of the lifting rack 8 and the first gear 10, the support shaft 9 is driven to rotate. Combined with the transmission component 11, the rotating rod 7 is driven to rotate. Under the mutual cooperation of the ejection component and the blanking structure with the rotating rod 7, the ejection component and the blanking structure are driven to operate synchronously, so as to realize the injection molding of the material sheet in the mold cavity of the lower mold 5. The molded sheet is ejected and removed from the lower mold 5, so as to achieve the purpose of unloading the imaged injection molded sheet. This solves the problem that in the existing injection molding machine, after the injection molded part is cooled and formed, it is necessary to manually pick out the molded injection molded part from the molding cavity of the mold, which is labor-intensive, time-consuming, and inefficient, affecting the production efficiency of the injection molding operation and easily causing damage to the injection molded parts, thereby affecting the quality of the injection molded parts. At the same time, it solves the problem that some of the existing injection molding equipment uses an ejection mechanism to eject the cooled and formed injection molded parts from the mold, and then manually removes the ejected injection molded parts, which has a low degree of automation and increases the workload of the staff.

[0043] The ejection assembly includes a winding roller 13, a connecting rope 14, a cylinder 15, a piston rod 16, an upper push plate 17 and a spring 18. The winding roller 13 is sleeved on the rotating rod 7, and the winding roller 13 is arranged on the front side of the second gear 12. The connecting rope 14 is wound on the winding roller 13. The cylinder 15 is fixed to the bottom of the injection molding table 1. A through hole is opened at the bottom of the mold cavity of the lower mold 5. The through hole passes through the bottom of the injection molding table 1 and is connected with the inner cavity of the cylinder 15.

[0044] The piston rod 16 is movably arranged in the cylinder 15. The cross-section of the piston rod 16 is a T-shaped structure, and the upper part of the piston rod 16 is movably matched with the through hole. The upper push plate 17 is movably arranged in the mold cavity of the lower mold 5. The upper end of the piston rod 16 is fixedly connected to the bottom of the upper push plate 17. The spring 18 is arranged inside the cylinder 15, and the two ends of the spring 18 are respectively fixedly connected to the lower end of the piston rod 16 and the inner bottom of the cylinder 15.

[0045] A round hole is passed through the bottom of the cylinder 15 , and the connecting rope 14 is movably matched with the round hole. The movable end of the connecting rope 14 passes through the round hole and the spring 18 and is connected to the lower end of the piston rod 16 .

[0046] The material discharge structure includes a first guide block 21, a second guide block 22, a first rack 23, a second rack 24, a first connecting rod 25, a first fixed rod 26, a side push plate 27, a second connecting rod 28, a second fixed rod 29 and a bearing plate 30. A rectangular groove 19 runs through the rear side of the top of the injection molding table 1, and a guide rod 20 is fixed inside the rectangular groove 19. The first guide block 21 and the second guide block 22 are both movably mounted on the guide rod 20, and the first guide block 21 and the second guide block 22 are both movably matched with the rectangular groove 19.

[0047] The first rack 23 and the second rack 24 are respectively arranged on the upper and lower sides of the second gear 12, and the first rack 23 and the second rack 24 are both meshed with the second gear 12, the first fixed rod 26 is fixedly connected between the first guide block 21 and the first rack 23, the first connecting rod 25 is fixed on the top of the first guide block 21, the side push plate 27 is fixed on the end of the first connecting rod 25 away from the first guide block 21, and the side push plate 27 cooperates with the upper surface of the lower mold 5, and the side push plate 27 is arranged on the right side of the lower mold 5.

[0048] The second fixing rod 29 is fixed between the bottom of the second guide block 22 and the second rack 24 , the second connecting rod 28 is fixed on the top of the second guide block 22 , the bearing plate 30 is fixed on one end of the second connecting rod 28 away from the second guide block 22 , and the bearing plate 30 is arranged on the left side of the lower mold 5 .

[0049] A through slot is passed through the fixing frame 2, a vertical rod 32 is fixed inside the through slot, the vertical rod 32 passes through the lifting plate 6, and the lifting plate 6 and the vertical rod 32 are slidably matched, an injection tube is embedded on one side of the top of the upper mold 4, the injection tube and the through slot cooperate with each other, and a valve is provided on the injection tube.

[0050] A first support plate 33 is fixed to the bottom of the injection molding table 1, a second support plate 34 is fixed to the bottom of the fixed frame 2, the rotating rod 7 passes through the second support plate 34, the rotating rod 7 and the second support plate 34 rotate together, the front end of the rotating rod 7 is rotatably connected to the first support plate 33, and the first support plate 33 and the second support plate 24 effectively support the rotating rod 7, thereby ensuring the stability of the rotating rod 7 and the second gear 12, and further ensuring the stability of the winding roller 13 and the blanking structure.

[0051] Example:

[0052] Initial state, such as Figure 1-Figure 3 As shown, when the injection molding operation is performed on the sheet, the hydraulic cylinder 3 is first started, and the upper mold 4 is pushed to move downward steadily under the sliding cooperation between the lifting plate 6 and the vertical rod 32 until the upper mold 4 and the lower mold 5 are docked together;

[0053] In the process of the hydraulic cylinder 3 pushing the upper mold 4 to move downward, the lifting plate 6 is driven to move downward synchronously, and then the lifting rack 8 is driven to move downward. Under the meshing action of the lifting rack 8 and the first gear 10, combined with the rotation connection between the support shaft 9 and the fixed frame 2, the support shaft 9 is driven to rotate. Under the action of the transmission assembly 11, combined with the rotation cooperation of the rotating rod 7 and the first support plate 33 and the second support plate 34, the rotating rod 7 is driven to rotate synchronously. Through the rotation of the rotating rod 7, the second gear 12 is driven to rotate;

[0054] In the process that the rotating rod 7 drives the second gear 12 to rotate, the first guide block 21 and the second guide block 22 are in sliding cooperation with the guide rod 20, thereby driving the first rack 23 and the second rack 24 to move synchronously in opposite directions;

[0055] Under the action of the first fixed rod 26 and the first connecting rod 25, the side push plate 27 is driven to move to the right side and away from the top of the lower mold 5 during the movement of the first rack 23. At the same time, under the action of the second fixed rod 29 and the second connecting rod 28, the bearing plate 30 is driven to move to the left side during the movement of the second rack 24.

[0056] During the rotation of the rotating rod 7, the winding roller 13 is driven to rotate, and the connecting rope 14 is wound up. As the connecting rope 14 is wound up, the piston rod 16 is pulled to move downward along the inner cavity of the cylinder 15, compressing the spring 18, and at the same time driving the upper push plate 17 to move into the cavity of the lower mold 5;

[0057] When the side push plate 27 is removed from above the lower mold 5, the upper mold 4 contacts the lower mold 5, and the upper push plate 17 moves to the bottom of the mold cavity of the lower mold 5, as shown in FIG. Figure 4-Figure 13 As shown, the injection molding operation is then carried out under the action of the injection molding tube;

[0058] After the injection molding is completed, when the cooled and molded injection-molded plastic sheet is demoulded and discharged, the hydraulic cylinder 3 is driven to contract, driving the upper mold 4 to move upward and away from the lower mold 5. In this process, under the action of the linkage mechanism, the rotating rod 7 is driven to rotate in the opposite direction, thereby driving the second gear 12 to rotate in the opposite direction;

[0059] When the rotating rod 7 rotates in the reverse direction, the winding roller 13 is driven to rotate, the connecting rope 14 is released, and the piston rod 16 is pushed upwards in combination with the elastic effect of the spring 18, thereby driving the upper push plate 17 to move upwards along the mold cavity of the lower mold 5, and the injection molded plastic sheet inside the mold cavity of the lower mold 5 is pushed upwards, so as to realize the purpose of demolding the injection molded plastic sheet;

[0060] During this process, when the second gear 12 rotates in the opposite direction, the first rack 23 is driven to move to the left, thereby driving the side push plate 27 to move to the left close to the lower mold 5, and at the same time, the second rack 24 is driven to move to the right synchronously, thereby driving the bearing plate 30 to move to the right close to the lower mold 5;

[0061] As the connecting rope 14 is released, the spring 18 is fully extended, so that the upper push plate 17 moves up to the highest position. At this time, the top surface of the upper push plate 17 moves to the outside of the lower mold 5, and then the molded injection plastic sheet is completely ejected from the mold cavity of the lower mold 5, achieving the purpose of demolding the sheet, solving the problem that the existing injection molding machine needs to manually pick out the molded injection molded part from the molding cavity of the mold after the injection molded part is cooled and formed, which is labor-intensive, time-consuming, and inefficient, affecting the production efficiency of the injection molding operation, and easily causing damage to the injection molded part, affecting the quality of the injection molded part;

[0062] As the hydraulic cylinder 3 continues to shrink, the rotating rod 7 continues to rotate, thereby driving the side push plate 27 and the carrying plate 30 to continue to move. When the side push plate 27 passes the upper side of the lower mold 5, the ejected sheet is pushed to the left. When the hydraulic cylinder 3 is fully retracted, one end of the carrying plate 30 abuts against the left side of the lower mold 5. At this time, the side push plate 27 moves to the far left, thereby pushing the demoulded sheet out from the top of the lower mold 5 and dropping it onto the carrying plate 30 on the left. When the injection molding operation is continued, the above operation is repeated, so that the carrying plate 30 drives the sheet that falls on its top The injection molding plastic sheet at the bottom moves to the left until the carrier plate 30 moves to the initial position, thereby driving the injection molding plastic sheet to move to the far left, and finally removing the sheet on the carrier plate 30, thereby realizing the unloading of the injection molding plastic sheet, effectively improving the degree of automation of sheet injection molding, demolding and unloading, thereby improving the production efficiency of the injection molding operation, and solving the problem that some existing injection molding equipment uses an ejection mechanism to eject the cooled and formed injection molded parts from the mold, and then manually removes the ejected injection molded parts, which has a low degree of automation and increases the workload of the staff.

[0063] It should be further explained that the installation structure, connection method or setting method of each component in the present invention are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented. At the same time, the hydraulic cylinder 3 in the present invention is purchased on the market, and those skilled in the art can install and use it according to the requirements;

[0064] The transmission assembly 11 in the present invention is composed of a transmission belt and two pulleys, the two pulleys are relatively arranged on the support shaft 9 and the rotating rod 7, and the transmission belt is arranged between the two pulleys. Those skilled in the art can install and use the transmission assembly 11 according to the use requirements;

[0065] The first rack 23 and the second rack 24 are staggered, thereby ensuring that the first rack 23 and the second fixing rod 29 can be staggered with each other, ensuring that the first rack 23 and the second rack 24 can move simultaneously without affecting each other, thereby ensuring the use effect of the blanking structure.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0067] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A material removal structure for removing a molded sheet from a mold, comprising an injection molding table (1), a fixing frame (2) fixed to the rear side of the injection molding table (1), a hydraulic cylinder (3) installed on the top of the fixing frame (2), a telescopic end of the hydraulic cylinder (3) passing through the fixing frame (2) and connected to an upper mold (4), a lower mold (5) provided on the top of the injection molding table (1), the lower mold (5) matching with the upper mold (4), characterized in that: A lifting plate (6) is fixed to the rear surface of the upper mold (4), a rotating rod (7) is arranged at the lower side of the injection molding platform (1), an ejection assembly is arranged at the bottom of the injection molding platform (1), the ejection assembly cooperates with the rotating rod (7) and the lower mold (5), a material discharge structure is arranged on the injection molding platform (1), the material discharge structure cooperates with the rotating rod (7), a linkage mechanism is arranged between the rotating rod (7) and the lifting plate (6), and the linkage mechanism comprises: A lifting rack (8) is fixed to the rear end of the lifting plate (6); a support shaft (9) is rotatably provided on the rear surface of the fixing frame (2); a first gear (10) is provided on the support shaft (9); the first gear (10) is meshed with the lifting rack (8); a second gear (12) is provided on the rotating rod (7); and a transmission assembly (11) is provided between the rear end of the rotating rod (7) and the rear end of the support shaft (9).

2. The material removal structure for removing the formed sheet from the mold according to claim 1, characterized in that: The ejection assembly comprises a winding roller (13), a connecting rope (14), a cylinder (15), a piston rod (16), an upper push plate (17) and a spring (18); the winding roller (13) is sleeved on the rotating rod (7), and the winding roller (13) is arranged on the front side of the second gear (12); the connecting rope (14) is wound on the winding roller (13); the cylinder (15) is fixed to the bottom of the injection molding table (1); a through hole is opened at the bottom of the mold cavity of the lower mold (5); the through hole passes through the bottom of the injection molding table (1) and is connected to the inner cavity of the cylinder (15).

3. The material removal structure for removing the formed sheet in the mold according to claim 2, characterized in that: The piston rod (16) is movably arranged in the cylinder (15); the cross section of the piston rod (16) is a T-shaped structure, and the upper part of the piston rod (16) is movably matched with the through hole; the upper push plate (17) is movably arranged in the mold cavity of the lower mold (5); the upper end of the piston rod (16) is fixedly connected to the bottom of the upper push plate (17); the spring (18) is arranged inside the cylinder (15), and the two ends of the spring (18) are respectively fixedly connected to the lower end of the piston rod (16) and the inner bottom of the cylinder (15).

4. The material removal structure for removing the formed sheet in the mold according to claim 3, characterized in that: A circular hole is passed through the bottom of the cylinder (15), and the connecting rope (14) is movably matched with the circular hole. The movable end of the connecting rope (14) passes through the circular hole and the spring (18) and is connected to the lower end of the piston rod (16).

5. The material removal structure for removing the formed sheet in the mold according to claim 4, characterized in that: The material discharge structure comprises a first guide block (21), a second guide block (22), a first rack (23), a second rack (24), a first connecting rod (25), a first fixed rod (26), a side push plate (27), a second connecting rod (28), a second fixed rod (29) and a bearing plate (30); a rectangular groove (19) passes through the rear side of the top of the injection molding table (1); a guide rod (20) is fixed inside the rectangular groove (19); the first guide block (21) and the second guide block (22) are both movably sleeved on the guide rod (20), and the first guide block (21) and the second guide block (22) are both movably matched with the rectangular groove (19).

6. The material removal structure for removing the formed sheet in the mold according to claim 5, characterized in that: The first rack (23) and the second rack (24) are respectively arranged on the upper and lower sides of the second gear (12), and the first rack (23) and the second rack (24) are both meshed with the second gear (12), the first fixing rod (26) is fixedly connected between the first guide block (21) and the first rack (23), the first connecting rod (25) is fixed on the top of the first guide block (21), the side push plate (27) is fixed on one end of the first connecting rod (25) away from the first guide block (21), and the side push plate (27) is matched with the upper surface of the lower mold (5), and the side push plate (27) is arranged on the right side of the lower mold (5).

7. The material removal structure for removing the formed sheet in the mold according to claim 6, characterized in that: The second fixing rod (29) is fixed between the bottom of the second guide block (22) and the second rack (24), the second connecting rod (28) is fixed to the top of the second guide block (22), the bearing plate (30) is fixed to one end of the second connecting rod (28) away from the second guide block (22), and the bearing plate (30) is arranged on the left side of the lower mold (5).

8. The material removal structure for removing a molded sheet from a mold according to claim 7, characterized in that: The fixing frame (2) is penetrated by a through slot, a vertical rod (32) is fixed inside the through slot, the vertical rod (32) penetrates the lifting plate (6), and the lifting plate (6) and the vertical rod (32) are slidably matched, an injection tube is embedded on one side of the top of the upper mold (4), the injection tube and the through slot are matched with each other, and a valve is arranged on the injection tube.

9. The material removal structure for removing a molded sheet from a mold according to claim 8, characterized in that: A first support plate (33) is fixed at the bottom of the injection molding table (1), a second support plate (34) is fixed at the bottom of the fixing frame (2), the rotating rod (7) passes through the second support plate (34), the rotating rod (7) and the second support plate (34) are rotationally matched, and the front end of the rotating rod (7) is rotationally connected to the first support plate (33).

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