Automatic mechanism for wax injection mold
By designing an automated wax injection mold mechanism, using the cylinder system and the mold extraction structure, the problems of low production efficiency and unstable quality of complex shape wax molds are solved, and efficient automated production and accuracy of cavity shape are achieved.
Patent Information
- Application Number
- CN202411167184.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-01-10
AI Technical Summary
During the wax mold production process, wax molds of complex shapes are difficult to eject through the open mold, resulting in low production efficiency and unstable product quality, and multiple live blocks need to be placed and removed manually.
Design a wax injection mold automation mechanism, including upper and lower molds. Through the cooperation of the middle pulling mold, upper pulling mold and lower pulling mold, the cylinder system can be used to realize the automatic mold opening and the production of complex inner cavity shape wax molds to ensure Accuracy and productivity of cavity shape.
The automated production of complex shape wax molds is realized, which improves production efficiency, reduces production costs, and ensures the quality of the wax mold cavity.
Smart Images
Figure CN119282024A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of molds, and in particular to an automatic mechanism for wax injection molds. Background Art
[0002] In the production process of wax molds, since wax molds are easy to break, some relatively complex wax molds cannot be directly produced by the mold opening and ejection method. At this time, it is necessary to design multiple live blocks according to the actual shape of the product. In this way, in a complete production process, live blocks need to be placed and taken out, which are generally done manually. Therefore, it will greatly affect the production efficiency, and due to the influence of human factors, the product quality is unstable. Summary of the invention
[0003] Based on this, it is necessary to provide a wax injection mold automation mechanism to address the problems in the prior art.
[0004] A wax injection mold automation mechanism, characterized in that it includes an upper mold and a lower mold, the lower mold is provided with a lower cavity, the upper mold is provided with an upper cavity, the lower cavity and the upper cavity form an outer cavity adapted to the product shape, a middle draw mold is provided in the cavity, and an upper draw mold and a lower draw mold are respectively provided on both sides of the middle draw mold, the middle draw mold and the upper draw mold and the lower draw mold form an inner draw mold adapted to the inner cavity of the product, the inner draw mold is located on the inner side of the outer cavity, a middle cylinder for controlling the movement of the middle draw mold is provided on the outer side of the lower mold, a finger cylinder is provided on the outer side of the lower mold, two moving rods of the finger cylinder are respectively fixed to the upper draw mold and the lower draw mold, control the upper draw mold and the lower draw mold to move toward the middle, the finger cylinder is connected to the piston rod of the outer cylinder, and the outer cylinder controls the upper draw mold and the lower draw mold to move toward the outside of the outer cavity.
[0005] In one of the embodiments, a middle movable plate is provided on the outer side of the lower mold, the middle movable plate is fixed to the middle drawing mold, and the middle cylinder piston rod is fixed to the middle movable plate.
[0006] In one of the embodiments, the middle cylinder is fixed at one end position on the lower side of the lower mold, and a first connecting block is provided at the end of the piston rod of the middle cylinder, and the connecting block is provided with a middle connecting rod, and the other end of the connecting rod is fixed to the middle movable plate through a second connecting block. When the piston rod of the middle cylinder is extended, the piston rod and the middle connecting rod are located at the side position of the lower mold, and the middle draw mold is located in the outer cavity. When the piston rod of the middle cylinder is retracted, the middle connecting rod is located outside the lower mold, and the middle draw mold moves out of the outer cavity.
[0007] In one embodiment, a limit plate is provided at the end of the lower mold, and the limit plate and the middle cylinder are respectively located at the two ends of the lower mold. When the piston rod of the middle cylinder is extended and the first connecting block moves to abut against the limit plate, the middle draw mold moves to a preset position inside the outer cavity.
[0008] In one of the embodiments, the outer cylinder is fixed at the lower side of the lower mold, the piston rod of the outer cylinder is connected to the outer connecting plate, and the finger cylinder is fixed to the outer connecting plate.
[0009] In one embodiment, the middle connecting plate and the outer connecting plate side plates are respectively connected to two sliders, a fixed plate is provided on the lower side of the lower mold, a guide rail is provided on the side of the fixed plate, and the slider is clamped on the outer side of the guide rail and moves along the direction of the guide rail.
[0010] In one embodiment, the lower mold is provided with at least one groove, a movable lower core is provided in the groove through a guide rail slider structure, the movable lower core is provided with a movable forming part inserted into the outer cavity, the movable lower core is provided with a lower inclined surface, a movable groove is provided at the position of the lower inclined surface, a fixed movable upper core is provided on the side of the upper mold, the movable upper core is provided with an upper inclined surface, a movable protrusion is provided at the position of the upper inclined surface, when the upper mold and the lower mold are closed, the movable protrusion slides in the movable groove, and when the upper mold and the lower mold are opened, the movable lower core moves along the slider direction of the guide rail slider, and the movable forming part moves out from the outer cavity position.
[0011] In one embodiment, a first side cylinder is provided on the side of the lower mold, a piston rod of the first side cylinder is connected to a first mold core, the first mold core is provided with a first molding portion inserted into the outer cavity, and the lower mold is provided with a first groove adapted to the first mold core. Under the action of the first side cylinder, the first mold core moves laterally in the first groove.
[0012] In one embodiment, a second side cylinder is provided on the side of the lower mold, the second side cylinder and the first side cylinder are located at adjacent side positions of the lower mold, the piston rod of the second side cylinder is connected to a second middle connecting block, the second middle connecting block is connected to a second mold core, the second mold core is located on the side of and abuts the first mold core, a second molding portion is provided at the end of the second mold core, a first guide groove and a first guide block are provided at the junction of the first mold core and the second mold core, the first guide groove is along the direction of the piston rod of the first side cylinder, a third side cylinder is also provided on the side of the lower mold, the third side cylinder and the first side cylinder are located on the same side of the lower mold, the piston rod of the third side cylinder is connected to the third middle connecting block, the third middle connecting block is located at the lower side of the second middle connecting block, a second guide groove and a second guide block are provided between the second middle connecting block and the third middle connecting block, the second guide groove is along the direction of the piston rod of the second side cylinder, the third side cylinder controls the lateral movement of the second mold core, and the second side cylinder controls the longitudinal movement of the second mold core and the first mold core.
[0013] In one embodiment, the piston rod of the first side cylinder is connected to a first connecting block, the first connecting block is provided with a first connecting groove, the first connecting groove is along the direction of the piston rod of the second side cylinder, the first mold core is provided with a first connecting protrusion adapted to the connecting groove, when the first mold core moves, the first mold core is fixed to the piston rod of the first side cylinder through the first connecting protrusion and the first connecting groove, the piston rod of the second side cylinder is connected to a second connecting block, the second mold core is provided with a second connecting groove, and the second connecting groove is along the direction of the piston rod of the third side cylinder.
[0014] The above-mentioned wax injection mold automation mechanism, after the wax injection is completed, first takes out the middle draw mold through the middle cylinder, and then under the action of the finger cylinder, the upper draw mold and the lower draw mold move toward the middle. After moving to a position where they will not interfere with the wax mold, the upper draw mold and the lower draw mold are taken out under the action of the outer cylinder, thereby completing the processing of the shell type wax mold product. At this time, under the action of the middle cylinder and the outer cylinder, the inner draw mold is automatically taken out after the mold is opened, thereby realizing the automated production process of wax molds with complex inner cavity shapes, improving production efficiency, reducing production costs, and at the same time, ensuring the quality of the inner cavity of the wax mold. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall structure of the wax injection mold automation mechanism of the present invention; Figure 2 This is a schematic diagram of the overall structure of the wax injection mold automation mechanism of the present invention; Figure 3 It is a schematic diagram of the structure of the wax injection mold automation mechanism after wax injection of the present invention; Figure 4 This is a schematic diagram of the structure of the wax injection mold automation mechanism before wax injection of the present invention; Figure 5 It is a partial structural schematic diagram of the wax injection mold automation mechanism of the present invention; Figure 6 It is a partial structural schematic diagram of the wax injection mold automation mechanism of the present invention; Figure 7 It is a partial structural schematic diagram of the wax injection mold automation mechanism of the present invention; Figure 8 It is a partial structural schematic diagram of the wax injection mold automation mechanism of the present invention; Fig. 9 It is a partial structural schematic diagram of the wax injection mold automation mechanism of the present invention; Among them, 1, upper mold; 2, lower mold; 31, middle draw mold; 311, middle cylinder; 312, middle moving plate; 313, first connecting block; 314, middle connecting rod; 315, second connecting block; 316 limiting plate; 32, upper draw mold; 321, finger cylinder; 322, outer cylinder; 323, outer connecting plate; 33, lower draw mold; 34, fixed plate; 21, groove; 22, movable lower core; 221, movable forming portion; 222, lower inclined surface; 223, movable groove; 23, movable upper core; 231, upper inclined surface; 232, movable protrusion; 41. First side cylinder; 42. First mold core; 421. First molding part; 422. First groove; 43. Second side cylinder; 431. Second middle connecting block; 432. Second mold core; 433. Second molding part; 434. First guide groove; 435. First guide block; 44. Third side cylinder; 441. Third middle connecting block; 442. Second guide groove; 443. Second guide block; 45. First connecting block; 46. Second connecting block. DETAILED DESCRIPTION
[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.
[0017] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only."
[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0019] like Figures 1 to 9As shown, an automated wax injection mold mechanism is characterized in that it includes an upper mold 1 and a lower mold 2, the lower mold 2 is provided with a lower cavity, the upper mold 1 is provided with an upper cavity, the lower cavity and the upper cavity form an outer cavity adapted to the product shape, a middle draw mold 31 is provided in the cavity, and upper and lower draw molds are provided on both sides of the middle draw mold 31 respectively, the middle draw mold 31 and the upper and lower draw molds 32 and 33 form an inner draw mold adapted to the inner cavity of the product, the inner draw mold is located on the inner side of the outer cavity, a middle cylinder 311 for controlling the movement of the middle draw mold 31 is provided on the outer side of the lower mold 2, a finger cylinder 321 is provided on the outer side of the lower mold 2, two moving rods of the finger cylinder 321 are respectively fixed to the upper and lower draw molds 32 and 33, and control the upper and lower draw molds 32 and 33 to move toward the middle, the finger cylinder 321 is connected to the piston rod of the outer cylinder 322, and the outer cylinder 322 controls the upper and lower draw molds 32 and 33 to move toward the outer side of the outer cavity.
[0020] After the wax injection is completed, the middle draw mold 31 is first taken out by the middle cylinder 311, and then the upper draw mold 32 and the lower draw mold 33 are moved toward the middle under the action of the finger cylinder 321. After moving to a position where they will not interfere with the wax mold, the upper draw mold 32 and the lower draw mold 33 are taken out under the action of the outer cylinder 322, thereby completing the processing of the shell wax mold product. At this time, under the action of the middle cylinder 311 and the outer cylinder 322, the inner draw mold is automatically taken out after the mold is opened, thereby realizing the automated production process of the wax mold with a complex inner cavity shape, improving production efficiency, reducing production costs, and at the same time, ensuring the quality of the wax mold inner cavity.
[0021] At this time, the wax mold product is annular as a whole (thin wall, at least with an opening at the end), and the inner wall of the product is more complicated in shape, with some concave positions. Therefore, if the entire inner draw mold is removed at once, the inner draw mold will interfere with the inner wall of the wax mold or the end opening position, thereby damaging the wax mold. Therefore, it is necessary to set the inner draw mold to a three-layer structure. First, the middle draw mold 31 of the middle layer is taken out, and then the upper draw mold 32 and the lower draw mold 33 are controlled to move toward the middle position, so that the upper draw mold 32 and the lower draw mold are separated from the inner wall of the wax mold until the moving upper draw mold 32 and the lower draw mold 33 can be moved out at the end opening position of the wax mold when moving horizontally. In this way, when the upper draw mold 32 and the lower draw mold 33 are removed from the inner wall of the wax mold, they will not interfere with the wax mold, thereby ensuring the quality of the wax mold production process.
[0022] Regarding the movement of the middle draw die 31 , in this embodiment, a middle moving plate 312 is provided on the outer side of the lower die 2 , the middle moving plate 312 is fixed to the middle draw die 31 , and the piston rod of the middle cylinder 311 is fixed to the middle moving plate 312 .
[0023] Specifically, the middle cylinder 311 is fixed at one end position on the lower side of the lower mold 2, and the piston rod end of the middle cylinder 311 is provided with a first connecting block 45313, and the connecting block is provided with a middle connecting rod 314. The other end of the connecting rod is fixed to the middle movable plate 312 through a second connecting block 46315. When the piston rod of the middle cylinder 311 is extended, the piston rod and the middle connecting rod 314 are located at the side position of the lower mold 2, and the middle draw mold 31 is located in the outer cavity. When the piston rod of the middle cylinder 311 is retracted, the middle connecting rod 314 is located outside the lower mold 2, and the middle draw mold 31 moves out of the outer cavity. At this time, since the middle draw mold 31 needs to be completely moved out to the position between the upper draw mold 32 and the lower draw mold 33 first, the middle draw mold 31 needs to move a large distance. In this embodiment, the middle cylinder 311 is fixed at the end position on the lower side of the lower mold 2. In this way, when the piston rod of the middle cylinder 311 is extended, the piston rod moves at the lower side of the lower mold 2. At the same time, the piston rod is connected and fixed to the middle connecting rod 314 through a connecting block. At this time, the middle connecting rod 314 is parallel to the piston rod, and then the middle connecting rod 314 is fixed by the movable plate 312 in the second connecting block 46315, thereby controlling the middle draw mold 31 to be completely moved out of the outer cavity, and thus will not affect the subsequent movement of the upper draw mold 32 and the lower draw mold 33.
[0024] At this time, in the process of the piston rod of the middle cylinder 311 moving out, it is also the process of the middle draw mold 31 moving to the outer cavity. The middle draw mold 31 is used to shape the inside of the product. Therefore, the position of the middle draw mold 31 needs to be positioned. At this time, in this embodiment, the end of the lower mold 2 is provided with a limit plate 316. The limit plate 316 and the middle cylinder 311 are respectively located at the two ends of the lower mold 2. When the piston rod of the middle cylinder 311 is extended, and the first connecting block 45313 moves to abut against the limit plate 316, the middle draw mold 31 moves to the preset position inside the outer cavity. By setting the limit plate 316, it can be used to limit the maximum movement position of the piston rod. At this time, the middle draw mold 31 is inside the outer cavity, which is the preset position for wax mold molding. In this way, the limit plate 316 is used to ensure the accuracy of the position of the middle draw mold 31, thereby ensuring the quality of the wax mold during the production process.
[0025] The finger cylinder 321 is used to control the upper draw mold 32 and the lower draw mold 33 to move toward the middle, and the outer cylinder 322 is used to control the movement of the finger cylinder 321, thereby controlling the movement of the upper draw mold 32 and the lower draw mold 33. Therefore, in this embodiment, the outer cylinder 322 is fixed at the lower side of the lower mold 2, and the piston rod of the outer cylinder 322 is connected with the outer connecting plate 323, and the finger cylinder 321 is fixed to the outer connecting plate 323. Similarly, when taking out the wax mold, the upper draw mold 32 and the lower draw mold 33 need to be completely moved out to the outside of the wax mold. Therefore, the upper draw mold 32 and the lower draw mold 33 also need a certain moving distance. Therefore, the outer cylinder 322 is set at the lower side of the lower mold 2. When the piston rod of the outer cylinder 322 is extended, it moves on the side of the lower mold 2, so that the outer cylinder 322 controls the movement of the upper draw mold 32 and the lower draw mold 33.
[0026] When the outer cylinder 322 and the middle cylinder 311 control the movement of the upper draw die 32, the lower draw die 33 and the middle draw die 31, it is necessary to ensure that the upper draw die 32, the lower draw die 33 and the middle draw die 31 maintain linear movement during the movement process. Therefore, in this embodiment, the side plates of the middle connecting plate and the outer connecting plate 323 are respectively connected to two sliders, and a fixed plate 34 is provided on the lower side of the lower mold 2. A guide rail is provided on the side of the fixed plate 34. The slider is clamped on the outer side of the guide rail and moves along the guide rail. At this time, under the action of the guide rail and the slider, the middle connecting plate and the outer connecting plate 323 can move in a straight line, thereby ensuring that the middle draw die 31, the upper draw die 32, and the lower draw die 33 are in a straight line when moving, so that when the middle draw die 31, the upper draw die 32, and the lower draw die 33 are removed from the wax mold, they will not interfere with the wax mold, thereby avoiding damage to the wax mold.
[0027] In another embodiment, the wax mold product at this time is provided with a plurality of hole structures connected to the outside world, so in the process of making the wax mold, corresponding hole structures need to be made. In this embodiment, the lower mold 2 is provided with at least one groove 21, and a movable lower core 22 is provided in the groove 21 through a guide rail slider structure. The movable lower core 22 is provided with a movable molding part 221 inserted into the outer cavity, and the movable lower core 22 is provided with a lower inclined surface 222, and a movable groove 223 is provided at the position of the lower inclined surface 222. A fixed movable upper core 23 is provided on the side of the upper mold 1, and the movable upper core 23 is provided with an upper inclined surface 231, and a movable protrusion 232 is provided at the position of the upper inclined surface 231. When the upper mold 1 and the lower mold 2 are closed, the movable protrusion 232 slides in the movable groove 223. When the upper mold 1 and the lower mold 2 are opened, the movable lower core 22 moves along the slider direction of the guide rail slider, and the movable molding part 221 moves out from the outer cavity position. When the upper mold 1 and the lower mold 2 are closed, the movable molding part 221 of the movable lower core 22 is inserted into the outer cavity, so that after the wax is injected, the movable molding part 221 can be moved out to form the required hole structure. At this time, in order to ensure that the movable molding part 221 moves in a straight line when the mold is opened, a guide rail slider structure is provided between the lower side of the movable lower core 22 and the lower mold 2, and an upper inclined surface 231 and a lower inclined surface 222 are provided between the movable upper core 23 and the movable lower core 22. At the same time, a movable protrusion 23 is provided. 2 and the movable groove 223, so that when the upper mold 1 is separated from the lower mold 2, the movable upper core 23 is separated from the movable lower core 22, and under the action of the movable protrusion 232 and the movable groove 223, the movable lower core 22 is moved along the direction of the guide rail in the guide rail slider, thereby moving the lower core 22 out from the side of the wax mold after molding, so that the movable lower core 22 moves in a straight line during the moving process, thereby ensuring that the movable lower core 22 and the movable molding part 221 will not damage the wax mold when moving out, thereby ensuring the quality of the wax mold.
[0028] In another embodiment, at this time, the wax mold product is provided with a hole structure connected to the outside, and the side of the hole structure is also provided with a boss plane of different heights. Therefore, in this embodiment, the side of the lower mold 2 is provided with a first side cylinder 41, and the piston rod of the first side cylinder 41 is connected to the first mold core 42, and the first mold core 42 is provided with a first molding portion 421 inserted into the outer cavity. The lower mold 2 is provided with a first groove 422 adapted to the first mold core 42. Under the action of the first side cylinder 41, the first mold core 42 moves laterally in the first groove 422. Under the action of the first side cylinder 41, the first mold core 42 moves laterally along the direction of the piston rod of the first side cylinder 41, thereby moving the first molding portion 421 of the first mold core 42 out of the outer cavity.
[0029] Since a boss plane is also provided on the side of the hole structure, a second molding part 433 is also provided on the side of the first molding part 421 for molding the boss plane. In the present embodiment, a second side cylinder 43 is provided on the side of the lower mold 2. The second side cylinder 43 and the first side cylinder 41 are located at adjacent side positions of the lower mold 2. The piston rod of the second side cylinder 43 is connected with a second middle connecting block 431. The second middle connecting block 431 is connected with a second mold core 432. The second mold core 432 is located on the side of the first mold core 42 and abuts against it. A second molding part 433 is provided on the end of the second mold core 432. A first guide groove 434 and a first guide block 434 are provided at the joint of the first mold core 42 and the second mold core 432. 5. The first guide groove 434 is along the direction of the piston rod of the first side cylinder 41. A third side cylinder 44 is also provided on the side of the lower mold 2. The third side cylinder 44 and the first side cylinder 41 are located on the same side of the lower mold 2. The piston rod of the third side cylinder 44 is connected to the third middle connecting block 441. The third middle connecting block 441 is located at the lower side of the second middle connecting block 431. A second guide groove 442 and a second guide block 443 are provided between the second middle connecting block 431 and the third middle connecting block 441. The second guide groove 442 is along the direction of the piston rod of the second side cylinder 43. The third side cylinder 44 controls the lateral movement of the second mold core 432. The second side cylinder 43 controls the longitudinal movement of the second mold core 432 and the first mold core 42.
[0030] At this time, the first guide groove 434 and the first guide block 435 on the side of the first mold core 42 are along the direction of the piston rod of the first side cylinder 41, so that the second mold core 432 can slide (laterally) on the side of the first mold core 42. At the same time, since the first guide block 435 is clamped in the first guide groove 434, when the second mold core 432 moves longitudinally, the first mold core 42 also moves longitudinally (it needs to be removed from the wax mold before it can move longitudinally).
[0031] After the mold is opened, the first side cylinder 41 is first used to control the first molding part 421 of the first mold core 42 to move outward (lateral movement), and then the third side cylinder 44 is used to control the second mold core 432 to move outward (lateral movement), and then the second side cylinder 43 is used to control the first mold core 42 and the second mold core 432 to move longitudinally, so that the first mold core 42 and the second mold core 432 can be moved out from the wax mold hole structure position after molding. At this time, the first mold core 42 and the second mold core 432 move in two directions, so that after the wax injection is completed, the first mold core 42 and the second mold core 432 are moved out from the wax mold hole structure position by the first side cylinder 41, the second side cylinder 43 and the third side cylinder 44.
[0032] At this time, the first side cylinder 41 and the third side cylinder 44 are located on one side of the lower mold 2, and the second side cylinder 43 is located at an adjacent side position, so that the piston rod movement direction of the second side cylinder 43 is longitudinal, and the piston rod movement direction of the first side cylinder 41 and the third side cylinder 44 is transverse, thereby realizing the transverse and longitudinal movement of the first mold core 42 and the second mold core 432.
[0033] At this time, the second mold core 432 needs to move laterally and longitudinally. Therefore, in this embodiment, the piston rod of the third side cylinder 44 is fixed to the third middle connecting block 441. When the piston rod of the third side cylinder 44 is actuated, the third middle connecting block 441 moves together with the second middle connecting block 431, driving the second mold core 432 to move laterally. When the piston rod of the second side cylinder 43 is actuated, it will only drive the second middle connecting block 431 to move along the direction of the second guide groove 442, thereby causing the second mold core 432 and the first mold core 42 to move longitudinally.
[0034] At this time, the first mold core 42 and the second mold core 432 will move, while the corresponding cylinder piston rods connected to the first mold core 42 and the second mold core 432 will not move. Therefore, in this embodiment, the piston rod of the first side cylinder 41 is connected to the first connecting block 45313, and the first connecting block 45313 is provided with a first connecting groove, and the first connecting groove is along the direction of the piston rod of the second side cylinder 43. The first mold core 42 is provided with a first connecting protrusion adapted to the connecting groove. When the first mold core 42 moves, the first mold core 42 is fixed to the piston rod of the first side cylinder 41 through the first connecting protrusion and the first connecting groove, and the piston rod of the second side cylinder 43 is connected to the second connecting block 46315, and the second mold core 432 is provided with a second connecting groove, and the second connecting groove is along the direction of the piston rod of the third side cylinder 44. The first connecting groove has a certain width, and the first mold core 42 can slide along the groove direction in the first connecting groove. The second connecting groove of the second mold core 432 has a certain width, and the second connecting block 46315 can slide in the second connecting groove, thereby realizing the movement of the second mold core 432.
[0035] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0036] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.
Claims
1. A wax injection molding automation mechanism, characterized in that: It includes an upper mold and a lower mold, the lower mold is provided with a lower cavity, the upper mold is provided with an upper cavity, the lower cavity and the upper cavity form an outer cavity adapted to the product shape, a middle draw mold is provided in the cavity, an upper draw mold and a lower draw mold are provided on both sides of the middle draw mold respectively, the middle draw mold and the upper draw mold and the lower draw mold form an inner draw mold adapted to the inner cavity of the product, the inner draw mold is located on the inner side of the outer cavity, a middle cylinder for controlling the movement of the middle draw mold is provided on the outer side of the lower mold, a finger cylinder is provided on the outer side of the lower mold, two moving rods of the finger cylinder are respectively fixed to the upper draw mold and the lower draw mold, control the upper draw mold and the lower draw mold to move toward the middle, the finger cylinder is connected to the piston rod of the outer cylinder, and the outer cylinder controls the upper draw mold and the lower draw mold to move toward the outside of the outer cavity.
2. The wax injection molding automation mechanism according to claim 1, characterized in that: A middle moving plate is arranged on the outer side of the lower die, the middle moving plate is fixed to the middle drawing die, and the piston rod of the middle cylinder is fixed to the middle moving plate.
3. The wax injection molding automation mechanism according to claim 2, characterized in that: The middle cylinder is fixed at one end position on the lower side of the lower mold, and a first connecting block is provided at the end of the piston rod of the middle cylinder, and the connecting block is provided with a middle connecting rod. The other end of the connecting rod is fixed to the middle movable plate through a second connecting block. When the piston rod of the middle cylinder is extended, the piston rod and the middle connecting rod are located at the side position of the lower mold, and the middle drawer is located in the outer cavity. When the piston rod of the middle cylinder is retracted, the middle connecting rod is located outside the lower mold, and the middle drawer moves out of the outer cavity.
4. The wax injection molding automation mechanism according to claim 3, characterized in that: A limit plate is provided at the end of the lower mold, and the limit plate and the middle cylinder are respectively located at the two ends of the lower mold. When the piston rod of the middle cylinder is extended and the first connecting block moves to abut against the limit plate, the middle draw mold moves to a preset position inside the outer cavity.
5. The wax injection molding automation mechanism according to claim 3 or 4, characterized in that: The outer cylinder is fixed at the lower side of the lower mold, the piston rod of the outer cylinder is connected with the outer connecting plate, and the finger cylinder is fixed to the outer connecting plate.
6. The wax injection molding automation mechanism according to claim 5, characterized in that: The middle connecting plate and the side plates of the outer connecting plate are connected to two slide blocks respectively. A fixing plate is provided on the lower side of the lower mold. A guide rail is provided on the side of the fixing plate. The slide block is clamped on the outer side of the guide rail and moves along the guide rail.
7. The wax injection molding automation mechanism according to claim 1, characterized in that: The lower mold is provided with at least one groove, in which a movable lower core is provided through a guide rail slider structure, the movable lower core is provided with a movable molding part inserted into an outer cavity, the movable lower core is provided with a lower inclined surface, and a movable groove is provided at the position of the lower inclined surface, and a fixed movable upper core is provided on the side of the upper mold, the movable upper core is provided with an upper inclined surface, and a movable protrusion is provided at the position of the upper inclined surface, when the upper mold and the lower mold are closed, the movable protrusion slides in the movable groove, and when the upper mold and the lower mold are opened, the movable lower core moves along the slider direction of the guide rail slider, and the movable molding part moves out from the outer cavity position.
8. The wax injection molding automation mechanism according to claim 1, characterized in that: A first side cylinder is provided on the side of the lower mold, a piston rod of the first side cylinder is connected to a first mold core, the first mold core is provided with a first molding portion inserted into the outer cavity, and the lower mold is provided with a first groove adapted to the first mold core. Under the action of the first side cylinder, the first mold core moves laterally in the first groove.
9. The wax injection molding automation mechanism according to claim 8, characterized in that: A second side cylinder is provided on the side of the lower mold, and the second side cylinder and the first side cylinder are located at adjacent side positions of the lower mold, the piston rod of the second side cylinder is connected to the second middle connecting block, and the second middle connecting block is connected to the second mold core, the second mold core is located on the side of the first mold core and abuts against it, a second molding portion is provided on the end of the second mold core, and a first guide groove and a first guide block are provided at the junction of the first mold core and the second mold core, and the first guide groove is along the direction of the piston rod of the first side cylinder, and a third side cylinder is also provided on the side of the lower mold, and the third side cylinder and the first side cylinder are located on the same side of the lower mold, the piston rod of the third side cylinder is connected to the third middle connecting block, and the third middle connecting block is located at the lower side of the second middle connecting block, a second guide groove and a second guide block are provided between the second middle connecting block and the third middle connecting block, and the second guide groove is along the direction of the piston rod of the second side cylinder, the third side cylinder controls the lateral movement of the second mold core, and the second side cylinder controls the longitudinal movement of the second mold core and the first mold core.
10. The wax injection molding automation mechanism according to claim 9, characterized in that: The piston rod of the first side cylinder is connected to a first connecting block, the first connecting block is provided with a first connecting groove, the first connecting groove is along the direction of the piston rod of the second side cylinder, the first mold core is provided with a first connecting protrusion adapted to the connecting groove, when the first mold core moves, the first mold core is fixed to the piston rod of the first side cylinder through the first connecting protrusion and the first connecting groove, the piston rod of the second side cylinder is connected to a second connecting block, the second mold core is provided with a second connecting groove, and the second connecting groove is along the direction of the piston rod of the third side cylinder.