Injection mold insert dismounting tool of multi-tooth structure

Abstract

The utility model relates to the technical field of mold auxiliary devices, and discloses an injection mold insert dismounting tool with a multi-tooth structure, which comprises a main transmission shaft, an injection molding workpiece and a screw rod lifting mechanism, and the two ends of the main transmission shaft are in transmission connection with a first meshing output assembly and a second meshing output assembly; the input structure of the first meshing output assembly is in transmission connection with a band-type brake servo motor, and thread forming rod pieces are arranged between the output structures of the second meshing output assembly and between injection molding workpieces. The main transmission shaft, the lead screw lifting mechanism, the first meshing output assembly, the band-type brake servo motor, the second meshing output assembly, the thread forming rod piece and the linkage curved bar are arranged to form the multifunctional disassembling tool. The forming requirement of a multi-threaded-hole structure in an injection molding workpiece can be met, a thread forming rod piece serving as a thread insert can be automatically screwed out after the injection molding workpiece is formed, and manual assistance is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of mold auxiliary devices, in particular to a disassembly tool for an injection mold insert with a multi-tooth structure. Background Art

[0002] Plastic molds are tools that are used in conjunction with plastic molding machines in the plastic processing industry to give plastic products a complete configuration and precise size. Due to the wide variety of plastics and processing methods, the structures of plastic molding machines and plastic products vary in complexity, and the types and structures of plastic molds are also diverse. Therefore, how to conveniently remove materials during injection molding has become a headache for operators. For example, in existing multi-tooth structure molds, the existing technology is to first perform injection molding by adding inlays, and then unscrew the inserts by hand or with tools after the product is ejected from the mold. The operation is troublesome and the appearance will be damaged due to unstable force. Secondly, after the inserts are made, inlay marks will be produced, affecting the appearance of the product. Thirdly, the various sizes of nuts in the product result in a large number of inserts, making production control difficult, and inserts are easily misplaced during production. Therefore, in response to the problems existing in the above-mentioned prior art, the applicant will provide a multi-tooth structure injection mold insert disassembly tooling to solve them. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention provides a multi-tooth structure injection mold insert disassembly tool, which solves the problems raised by the above-mentioned background technology.

[0004] The utility model provides the following technical solutions: a multi-tooth structure injection mold insert disassembly tool, including a main transmission shaft, an injection molded workpiece, and a screw lifting mechanism, the two ends of the main transmission shaft are transmission-connected with a first meshing output component and a second meshing output component, and the input structure of the first meshing output component is transmission-connected with a brake servo motor, a threaded forming rod is arranged between the output structure of the second meshing output component and the injection molded workpiece, the threaded forming rod participates in the injection molding process of the injection molded workpiece and can form an internal thread structure in a specified position in the injection molded workpiece, and a linkage curved rod is installed between the output structure of the screw lifting mechanism and the shell surface of the brake servo motor.

[0005] Preferably, the screw lifting mechanism includes a brake servo motor, a screw and a nut, the nut is threadedly connected to the surface of the screw, and the nut serves as an output structure of the screw lifting mechanism and is fixedly connected to one side of the linkage bent rod.

[0006] Selectedly, the first meshing output assembly includes a first supporting shell, a first linkage gear shaft, a transition shaft, a first transition gear, a second transition gear and a third transition gear, and the top of the first linkage gear shaft and the top structure on one side of the first supporting shell, and the end of the transition shaft and the top structure on the other side of the first supporting shell are all mounted through bearings.

[0007] Selected, the top of the main transmission shaft is mounted inside the first supporting shell through a bearing, the middle part of the third transition gear is fixedly connected to the top end of the main transmission shaft, the first transition gear and the second transition gear are respectively mounted on the surfaces at both ends of the transition shaft, the first transition gear is meshed with the first linkage gear shaft, the second transition gear is meshed with the third transition gear, the first linkage gear shaft serves as the input structure of the first meshing output component and is transmission-connected to the output end of the brake servo motor, and a positioning seat is installed between the shell surface of the brake servo motor and the first supporting shell.

[0008] Selectedly, the second meshing output assembly includes a second supporting shell, five second linkage gear shafts, and four third linkage gear shafts. The five second linkage gear shafts and the four third linkage gear shafts are all mounted on the second supporting shell. The ends of the five second linkage gear shafts and the top structure of the second supporting shell, as well as the ends of the four third linkage gear shafts and the top structure of the second supporting shell are all mounted through bearings. The top of the second linkage gear shaft in the middle position among the five third linkage gear shafts is connected to the bottom of the main transmission shaft.

[0009] The four third linkage gear shafts are carefully selected and arranged in groups of two in the front end and the rear end of the second supporting shell respectively, and the five second linkage gear shafts are arranged in a straight line and equidistant manner in the middle of the second supporting shell, and the second linkage gear shaft in the middle is meshed and connected with the two third linkage gear shafts adjacent to the front and rear ends, the two second linkage gear shafts closest to and located on both sides of the middle second linkage gear shaft are also meshed and connected with the two groups of two third linkage gear shafts adjacent to each other in the front and rear, and the two second linkage gear shafts farthest from the middle second linkage gear shaft are meshed and connected with the two second linkage gear shafts located in the rear end of the second supporting shell respectively.

[0010] The threaded molding rod is composed of five molded threaded rods, the top ends of the five molded threaded rods are respectively connected to the bottom ends of the five second linkage gear shafts, and the bottom ends of the five molded threaded rods are all arc-shaped structures that fit the top outer surface of the injection-molded workpiece, ensuring a good contact effect of the connection.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The utility model is provided with a main transmission shaft, a screw lifting mechanism, a first meshing output assembly, a brake servo motor, a second meshing output assembly, a threaded forming rod, and a linkage crank rod to form a multifunctional disassembly tool. In the subsequent use with the existing injection mold, it can meet the molding requirements of the multi-threaded hole structure in the injection molded workpiece, and can also automatically unscrew the threaded forming rod as a threaded insert after the injection molded workpiece is formed without manual assistance.

[0013] 2. The multifunctional disassembly tooling provided in the present invention improves production efficiency and has low maintenance cost by means of the linkage unscrewing method during use. The threaded forming rod as the threaded insert and the matching second meshing output component can be increased or decreased according to the product hole position. The thread specification of the threaded rod formed in the threaded forming rod can be determined according to the thread of the product, and has a wide range of uses. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a three-dimensional schematic diagram of the first meshing output component of the structure of the utility model;

[0016] Figure 3 This is a top view of the first meshing output assembly of the present utility model;

[0017] Figure 4 This is a top view of the third linkage gear shaft of the utility model structure;

[0018] Figure 5 It is an enlarged schematic diagram of the structural injection molded workpiece of the utility model.

[0019] In the figure: 1. Main transmission shaft; 2. Injection molded workpiece; 3. Screw lifting mechanism; 4. First meshing output assembly; 41. First linkage gear shaft; 42. Transition shaft; 43. First transition gear; 44. Second transition gear; 45. Third transition gear; 5. Brake servo motor; 6. Second meshing output assembly; 61. Second linkage gear shaft; 62. Third linkage gear shaft; 7. Threaded forming rod; 8. Linkage crankshaft. DETAILED DESCRIPTION

[0020] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-5A multi-tooth structure injection mold insert removal tooling includes a main transmission shaft 1, an injection molded workpiece 2, and a screw lifting mechanism 3. The two ends of the main transmission shaft 1 are transmission-connected with a first meshing output component 4 and a second meshing output component 6, and the input structure of the first meshing output component 4 is transmission-connected with a brake servo motor 5. The first meshing output component 4 includes a first supporting shell, a first linkage gear shaft 41, a transition shaft 42, a first transition gear 43, a second transition gear 44, and a third transition gear 45. The top of the first linkage gear shaft 41 is connected to the top structure on one side of the first supporting shell, and the end of the transition shaft 42 is connected to the top of the other side of the first supporting shell. The structures are all fitted together through bearings. The top of the main transmission shaft 1 is fitted inside the first supporting shell through the bearing. The middle part of the third transition gear 45 is fixedly connected to the top end of the main transmission shaft 1. The first transition gear 43 and the second transition gear 44 are respectively fitted on the surfaces at both ends of the transition shaft 42. The first transition gear 43 is meshed with the first linkage gear shaft 41, and the second transition gear 44 is meshed with the third transition gear 45. The first linkage gear shaft 41 serves as the input structure of the first meshing output component 4 and is transmission-connected to the output end of the brake servo motor 5. A positioning seat is installed between the shell surface of the brake servo motor 5 and the first supporting shell.

[0022] A threaded forming rod 7 is provided between the output structure of the second meshing output component 6 and the injection molded workpiece 2. The threaded forming rod 7 participates in the injection molding process of the injection molded workpiece 2 and can form an internal thread structure in a specified position in the injection molded workpiece 2. The second meshing output component 6 includes a second supporting shell, five second linkage gear shafts 61, and four third linkage gear shafts 62. The five second linkage gear shafts 61 and the four third linkage gear shafts 62 are all mounted on the second supporting shell. The ends of the five second linkage gear shafts 61 and the top structure of the second supporting shell, and the ends of the four third linkage gear shafts 62 and the top structure of the second supporting shell are all mounted through bearings. The middle position of the five third linkage gear shafts 62 The top of the second linkage gear shaft 61 is connected to the bottom of the main transmission shaft 1, and the four third linkage gear shafts 62 are arranged in groups of two in the front and rear ends of the second support shell respectively. The five second linkage gear shafts 61 are arranged in a straight line and equidistantly in the middle of the second support shell, and the second linkage gear shaft 61 in the middle is meshed and connected with the two third linkage gear shafts 62 adjacent to the front and rear ends. The two second linkage gear shafts 61 closest to and located on both sides of the middle second linkage gear shaft 61 are also meshed and connected with the two groups of two third linkage gear shafts 62 adjacent to each other in the front and rear, and the two second linkage gear shafts 61 farthest from the middle second linkage gear shaft 61 are meshed and connected with the two second linkage gear shafts 61 located in the rear end of the second support shell respectively.

[0023] The threaded rod 7 is composed of five threaded rods. The top ends of the five threaded rods are connected to the bottom ends of the five second linkage gear shafts 61 respectively. The bottom ends of the five threaded rods are all arc-shaped structures that fit the top surface of the injection molded workpiece 2 to ensure the contact effect of the connection.

[0024] A linkage bent rod 8 is installed between the output structure of the screw lifting mechanism 3 and the housing surface of the brake servo motor 5. The screw lifting mechanism 3 includes a brake servo motor, a screw and a nut. The nut is threadedly connected to the surface of the screw. The nut serves as the output structure of the screw lifting mechanism 3 and is fixedly connected to one side of the linkage bent rod 8.

[0025] Working Principle: During use, the first meshing output assembly 4, the brake servo motor 5, the second meshing output assembly 6, and the linked crankshaft 8 are all installed outside the existing injection mold, and the threaded forming rod 7 is adapted to be assembled in the molding cavity of the existing injection mold. Subsequently, the injection mold is closed to perform the injection molding operation, forming the injection molded workpiece 2 in the molding cavity. At the same time, the position of the threaded forming rod 7 will meet the molding requirements of the internal thread structure at multiple positions in the injection molded workpiece 2.

[0026] After the molding is completed and the injection mold is separated, the brake servo motor and the brake servo motor 5 in the screw lifting mechanism 3 are started synchronously, and the output end of the brake servo motor 5 drives the first linkage gear shaft 41 to rotate synchronously, and then the first transition gear 43, the second transition gear 44 and the third transition gear 45 are meshed in sequence to drive the main transmission shaft 1 to rotate synchronously. At the same time, the main transmission shaft 1 drives the corresponding second linkage gear shaft 61 to rotate synchronously, and then under the interactive meshing transmission between the five second linkage gear shafts 61 and the four third linkage gear shafts 62, the five second linkage gear shafts 61 drive the five formed threaded rods in the thread forming rod 7 to rotate synchronously. At the same time, the brake servo motor in the screw lifting mechanism 3 drives the screw meshing transmission nut, and then the nut drives the brake servo motor 5, the first meshing output component 4, the main transmission shaft 1, the screw lifting mechanism 3, the second meshing output component 6, and the thread forming rod 7 through the linkage crank rod 8 to cooperate with the thread ejection speed of the five formed threaded rods to rise, thereby achieving the automatic demolding effect of the five formed threaded rods and the injection molded workpiece 2.

[0027] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. At the same time, in the drawings of the present utility model, fill patterns are only used to distinguish layers and do not make any other limitations.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-thread structure injection mold insert removal tool, comprising a main transmission shaft (1), an injection molded workpiece (2), and a screw lifting mechanism (3), characterized in that: The two ends of the main transmission shaft (1) are transmission-connected with a first meshing output component (4) and a second meshing output component (6), and the input structure of the first meshing output component (4) is transmission-connected with a brake servo motor (5). A threaded forming rod (7) is provided between the output structure of the second meshing output component (6) and the injection molded workpiece (2). The threaded forming rod (7) participates in the injection molding process of the injection molded workpiece (2) and can form an internal thread structure in a specified position in the injection molded workpiece (2). A linkage crankshaft (8) is installed between the output structure of the screw lifting mechanism (3) and the housing surface of the brake servo motor (5).

2. The multi-thread structure injection mold insert removal tool according to claim 1, characterized in that: The screw lifting mechanism (3) comprises a brake servo motor, a screw and a nut, wherein the nut is threadedly connected to the surface of the screw, and the nut serves as an output structure of the screw lifting mechanism (3) and is fixedly connected to one side of the linkage bent rod (8).

3. The multi-thread structure injection mold insert removal tool according to claim 1, characterized in that: The first meshing output assembly (4) comprises a first supporting shell, a first linkage gear shaft (41), a transition shaft (42), a first transition gear (43), a second transition gear (44) and a third transition gear (45), wherein the top of the first linkage gear shaft (41) and the top structure on one side of the first supporting shell, and the end of the transition shaft (42) and the top structure on the other side of the first supporting shell are both fitted via bearings.

4. The multi-thread structure injection mold insert removal tool according to claim 3, characterized in that: The top of the main transmission shaft (1) is sleeved inside the first supporting shell through a bearing, the middle of the third transition gear (45) is fixedly connected to the top end of the main transmission shaft (1), the first transition gear (43) and the second transition gear (44) are respectively sleeved on the surfaces of both ends of the transition shaft (42), the first transition gear (43) is meshed with the first linkage gear shaft (41), the second transition gear (44) is meshed with the third transition gear (45), the first linkage gear shaft (41) is connected to the output end of the brake servo motor (5) as the input structure of the first meshing output component (4), and a positioning seat is installed between the shell surface of the brake servo motor (5) and the first supporting shell.

5. The multi-thread structure injection mold insert removal tool according to claim 1, characterized in that: The second meshing output assembly (6) comprises a second supporting shell, five second linkage gear shafts (61), and four third linkage gear shafts (62). The five second linkage gear shafts (61) and the four third linkage gear shafts (62) are all sleeved on the second supporting shell. The ends of the five second linkage gear shafts (61) and the top structure of the second supporting shell, as well as the ends of the four third linkage gear shafts (62) and the top structure of the second supporting shell are sleeved via bearings. The top of the second linkage gear shaft (61) located in the middle of the five third linkage gear shafts (62) is connected to the bottom of the main transmission shaft (1).

6. The multi-thread structure injection mold insert removal tool according to claim 5, characterized in that: The four third linkage gear shafts (62) are arranged in pairs in the front end and the rear end of the second support shell, respectively. The five second linkage gear shafts (61) are arranged in a straight line and equidistantly in the middle of the second support shell, and the second linkage gear shaft (61) in the middle is meshed and connected with the two third linkage gear shafts (62) adjacent to the front and rear ends. The two second linkage gear shafts (61) on both sides of the second linkage gear shaft (61) closest to and located in the middle are also meshed and connected with the two third linkage gear shafts (62) adjacent to each other in the front and rear ends of the two groups respectively. The two second linkage gear shafts (61) farthest from the second linkage gear shaft (61) in the middle are meshed and connected with the two second linkage gear shafts (61) located in the rear end of the second support shell.

7. The multi-thread structure injection mold insert removal tool according to claim 6, characterized in that: The threaded forming rod (7) is composed of five formed threaded rods, the top ends of the five formed threaded rods are respectively connected to the bottom ends of the five second linkage gear shafts (61), and the bottom ends of the five formed threaded rods are all arc-shaped structures that fit the top outer surface of the injection-molded workpiece (2).

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