Thread demoulding die structure of servo motor

Abstract

The utility model provides a thread demoulding mould structure of a servo motor, which aims at realizing the simplicity of the structure, the convenience of manufacturing, the convenience of installation and the cost saving, and ensuring that a product can be smoothly demoulded at the same time. According to the structure, the servo motor is adopted for thread stripping, the labor cost can be effectively reduced, and the qualified rate of products is stably guaranteed in the subsequent production process of the mold. Specifically, the die structure comprises a gear installed on the servo motor, and the gear is connected with a transmission structure on the die through a chain. When the mold is opened in the production process, the started servo motor drives the transmission mechanism on the mold, so that threads of a product are screwed out, and the function of thread demolding is achieved. The special structure of the mold has obvious advantages in the aspects of manufacturing, mounting and cost saving, and smooth demolding of a product can be ensured. Compared with a traditional thread demolding method, the thread demolding mold structure of the servo motor has the advantages that the labor cost can be more effectively saved, and qualified products can be produced in a more stable and effective mode.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a servo motor unscrewing mold structure. Background Technology

[0002] Threaded products are widely used in various fields. Many of these products were originally made of metal, which, while meeting the strength and performance requirements, was time-consuming and complex to manufacture. With technological advancements, some threaded products have begun to use plastics instead of metal, which not only meets performance requirements but also significantly reduces costs. As the application scope of threaded products continues to expand and market demand increases, the requirements for production cycle, quality, and quantity also rise. A servo motor-driven unscrewing die structure, compared to manual or forced unscrewing, can more effectively save manpower and shorten the production cycle, while also ensuring more stable product quality. Summary of the Invention

[0003] To overcome the shortcomings of existing technologies, the inventors have provided a servo motor unscrewing mold structure, the technical solution of which is described below:

[0004] A servo motor unscrewing mold structure includes a mold frame, a cavity, and a transmission structure;

[0005] The mold frame includes an upper mold and a lower mold; the upper mold includes an upper fixed plate, a first A plate, and a second A plate that are stacked and fastened together in sequence; the lower mold includes a B plate, an ejector mechanism, and a lower fixed plate that are connected in sequence; the ejector mechanism includes an upper ejector plate, a lower ejector plate, and an internal ejector pin;

[0006] The mold cavity includes: front mold core and rear mold core;

[0007] The transmission structure includes: a first gear transmission assembly, a second and third gear coaxial transmission assembly, a large gear sleeve transmission assembly, a fourth gear and a front mold insert assembly.

[0008] The first gear transmission assembly includes a servo motor and a first gear fixed to the servo motor; the servo motor is fixed to the second A plate;

[0009] The coaxial transmission assembly of the second and third gears includes a second gear, a third gear, a guide post, a first bearing, and a second bearing; the second gear is fixedly mounted on the guide post, and the first bearing is mounted on the lower end of the guide post; the third gear is mounted on the upper end of the guide post, and the second bearing is mounted on the lower end of the third gear, and the guide post is mounted between the first A plate and the second A plate, and the first gear and the third gear are connected by a chain;

[0010] The large gear sleeve transmission assembly includes a large gear sleeve, a guide post, and a large gear sleeve pressure plate; the guide post is fixedly mounted on the upper end of the first A plate with screws; the large gear sleeve is mounted on the guide post and the outer teeth of the large gear sleeve mesh with the second gear;

[0011] The fourth gear and front mold insert assembly includes: a fourth gear, a first front mold insert, a second front mold insert, and a third front mold insert; the fourth gear is fixed on the first front mold insert and meshes with the internal teeth of the large gear sleeve; the second front mold insert and the third front mold insert are respectively installed in the groove at the lower end of the first front mold insert and fixed inside the first front mold insert; the lower end of the first front mold insert passes through the front mold core and is installed on the second A plate; the upper end of the first front mold insert passes through and is fixed inside the upper fixing plate.

[0012] Preferably, the first gear transmission assembly may further include: a servo motor mounting base and a first square pin; the mold servo motor is fixed on the servo motor mounting base, the first gear on the servo motor is fixed on the servo motor by the first square pin, and the servo motor mounting base is fixed on the second A plate.

[0013] Preferably, the coaxial transmission assembly of the second and third gears may further include: a second square pin, a first snap ring, a second snap ring, a fourth snap ring, a third square pin, and a chain; the guide post is installed between the first A plate and the second A plate;

[0014] The second gear is mounted on the guide post, with a second retaining ring and a fourth retaining ring mounted on its top and bottom, respectively. A third pin is installed on the second gear to fix it to the guide post, and a first bearing is installed at the lower end of the guide post.

[0015] The third gear is mounted on the upper end of the guide post. The upper end of the third gear is equipped with a first snap ring and a second square pin is mounted on the third gear to fix the third gear on the guide post. The lower end of the third gear is equipped with a second bearing. The upper surface of the second bearing is in close contact with the second A plate, and the lower surface of the first bearing is in close contact with the first A plate.

[0016] The first gear and the third gear are connected by a chain.

[0017] Preferably, the large gear sleeve transmission assembly may further include a large gear sleeve pressure plate; the large gear sleeve pressure plate is fixed on the upper surface of the large gear sleeve, and the large gear sleeve pressure plate is fixed on the second A plate.

[0018] Preferably, the fourth gear and front mold insert assembly may further include: a first guide sleeve, a pressure plate, a second guide sleeve, and a pin;

[0019] The fourth gear is fitted with a fourth retaining ring at its upper end, and the second guide sleeve passes through the first front mold insert and is installed in the second A plate; the second front mold insert and the third front mold insert are respectively installed in the groove at the lower end of the first front mold insert and fixed in the first front mold insert with pins; the lower end of the first front mold insert passes through the front mold core, and the first guide sleeve is installed in the first A plate; and the upper end of the first front mold insert passes through the first guide sleeve; the pressure plate on the first guide sleeve is fixed in the upper fixing plate with screws;

[0020] The fourth gear is fixed on the first front mold insert and meshes with the inner teeth of the large gear sleeve.

[0021] Beneficial effects

[0022] This invention provides a servo motor-driven unscrewing mold structure. Its design aims to achieve structural simplicity, ease of manufacturing, convenient installation, and cost savings, while ensuring smooth product demolding. By employing a servo motor for unscrewing, this structure effectively reduces labor costs and consistently guarantees product yield during subsequent mold production. Specifically, the mold structure includes a gear mounted on the servo motor, which is connected to a transmission mechanism on the mold via a chain. When the mold opens during production, the activated servo motor drives the transmission mechanism on the mold, thereby unscrewing the product and achieving the unscrewing function.

[0023] The mold's unique structure offers significant advantages in manufacturing, installation, and cost savings, ensuring smooth product demolding. Compared to traditional unscrewing methods, the servo motor-driven unscrewing mold structure more effectively saves labor costs and produces qualified products in a more stable and efficient manner. Attached Figure Description

[0024] Figure 1 A schematic diagram of a servo motor unscrewing mold structure provided by this utility model;

[0025] Figure 2 A frontal mounting diagram of the servo motor and gears;

[0026] Figure 3 A schematic diagram showing the back mounting of the servo motor and gears;

[0027] Explanation of reference numerals in the attached figures:

[0028] 1-Upper fixing plate

[0029] 2-First A Board

[0030] 3-Second A Board

[0031] 4-B board

[0032] 5-Upper ejector plate

[0033] 6- Lower ejector plate

[0034] 7-Lower fixing plate

[0035] 8-Pre-model

[0036] 9-Post-model

[0037] 10-Servo Motor Mounting Base

[0038] 11-Servo Motor

[0039] 12-First Gear

[0040] 13-First-hand pin

[0041] 14-Second Gear

[0042] 15-First Bearing

[0043] 16-Second Bearing

[0044] 17-Third Gear

[0045] 18-Secondary Pin

[0046] 19-First Snap Ring

[0047] 20-Second snap ring

[0048] 21-Large Gear Sleeve

[0049] 22-Guide Column

[0050] 23-First guide sleeve

[0051] 24-Pressure Plate

[0052] 25-Fourth Gear

[0053] 26-First front mold insert

[0054] 27-Second front mold insert

[0055] 28-Second guide sleeve

[0056] 29-Third front mold insert

[0057] 30-pin

[0058] 31-Chain

[0059] 32-Large Gear Sleeve Pressure Plate

[0060] 33-Third snap ring

[0061] 34-Fourth snap ring

[0062] 35-guide post

[0063] 36-Third-party sales Detailed Implementation

[0064] To explain in detail the technical content, structural features, objectives, and effects of the technical solution, the following description is provided in conjunction with specific embodiments and accompanying drawings.

[0065] Please refer to the following: Figures 1 to 3 As shown in the figure, this embodiment provides a servo motor unscrewing mold structure. The technical solution is as follows:

[0066] A servo motor unscrewing mold structure includes a mold frame, a cavity, and a transmission structure.

[0067] The mold frame includes an upper mold and a lower mold; the upper mold includes an upper fixed plate 1, a first A plate 2, and a second A plate 3 that are stacked and fastened together in sequence; the lower mold includes a B plate 4, an ejector mechanism, and a lower fixed plate 7 that are connected in sequence; the ejector mechanism includes an upper ejector plate 5, a lower ejector plate 6, and an internal ejector pin;

[0068] The cavity includes: a front mold core 8 and a rear mold core 9;

[0069] The transmission structure includes: a first gear transmission assembly, a second and third gear coaxial transmission assembly, a large gear sleeve transmission assembly, a fourth gear and a front mold insert assembly.

[0070] The first gear transmission assembly includes: a servo motor mounting base 10, a servo motor 11, a first gear 12, and a first square pin 13;

[0071] The mold servo motor 11 is fixed to the servo motor mounting base 10 with screws, the first gear 12 on the servo motor 11 is fixed to the servo motor 11 with the first square pin 13, and the servo motor mounting base 10 is fixed to the second A plate 3 with screws.

[0072] The coaxial transmission assembly of the second and third gears includes a second gear 14, a first bearing 15, a second bearing 16, a third gear 17, a second square pin 18, a first snap ring 19, a second snap ring 20, a fourth snap ring 34, a guide post 35, a first bearing 15, a second bearing 16, and a third square pin 36.

[0073] The second gear 14 is mounted on the guide post 35. A second retaining ring 20 and a fourth retaining ring 34 are respectively installed on the top and bottom of the second gear 14 to prevent the second gear 14 from moving up and down. A third pin 36 is installed on the second gear 14 to fix the second gear 14 on the guide post 35. A first bearing 15 is installed at the lower end of the guide post 35.

[0074] The third gear 17 is mounted on the upper end of the guide post 35. A first retaining ring 19 is mounted on the upper end of the third gear 17, and a second square pin 18 is mounted on the third gear 17 to fix the third gear 17 to the guide post 35.

[0075] The second bearing 16 is installed at the lower end of the third gear 17, and the guide post 35 is installed between the first A plate 2 and the second A plate 3;

[0076] The upper surface of the second bearing 16 mounted on the guide post 35 is attached to the second A plate 3, and the lower surface of the first bearing 15 mounted on the guide post 35 is attached to the first A plate 2. Then, the first A plate 2 and the second A plate 3 are fixed and locked together with screws.

[0077] The first gear 12 and the third gear 17 are connected by a chain 31;

[0078] The large gear sleeve transmission assembly includes a large gear sleeve 21, a guide post 22, and a large gear sleeve pressure plate 32.

[0079] The guide post 22 is fixedly installed on the upper end of the first A plate 2 with screws;

[0080] The upper surface of the large gear sleeve 21 has a large gear sleeve pressure plate 32, and the large gear sleeve pressure plate 32 is fixed to the second A plate 3 with screws. When the first A plate 2 and the second A plate 3 are locked with screws, the large gear sleeve pressure plate 32 presses down on the large gear sleeve 21 and the guide post 22 is installed on the upper end of the first A plate 2 through the circular groove of the large gear sleeve 21, so that the large gear sleeve 21 cannot move up and down, but can only rotate.

[0081] The large gear sleeve 21 is mounted on the guide post 22 and the outer teeth of the large gear sleeve 21 mesh with the second gear 14.

[0082] The fourth gear and front mold insert assembly includes: a first guide sleeve 23, a fourth gear 25, a first front mold insert 26, a second front mold insert 27, a second guide sleeve 28, a third front mold insert 29, a pin 30, and a third retaining ring 33;

[0083] The third snap ring 33 is installed on the upper end of the fourth gear 25;

[0084] The second guide sleeve 28 is installed on the first A plate 2, passing through the first front mold insert 26.

[0085] The second front mold insert 27 and the third front mold insert 29 are respectively installed in the groove at the lower end of the first front mold insert 26 and fixed in the first front mold insert 26 with pins 30;

[0086] The lower end of the first front mold insert 26 passes through the front mold core 8, the first guide sleeve 23 is installed on the second A plate 3 and the upper end of the first front mold insert 26 passes through the first guide sleeve 23, and the pressure plate 24 on the first guide sleeve 23 is fixed in the upper fixed plate 1 with screws.

[0087] The fourth gear 25 is fixed on the first front mold insert 26 and meshes with the inner teeth of the large gear sleeve 21.

[0088] The working principle of this utility model is explained below:

[0089] When the servo motor starts and drives the first gear 12 to rotate, the third gear 17 rotates together because the first gear 12 and the third gear 17 are connected by a chain 31.

[0090] When the third gear 17 rotates, it can drive the second gear 14 to rotate.

[0091] When the second gear 14 rotates, it can drive the large gear 21 to rotate.

[0092] When the large gear 21 rotates, it can drive the fourth gear 25 to rotate.

[0093] When the fourth gear 25 rotates, it can drive the threaded third front mold insert 29 to rotate out of the thread shape, thereby achieving the effect of thread demolding.

Claims

1. A servo motor unscrewing mold structure, characterized in that, This includes the mold frame, cavity, and transmission structure; The mold frame includes an upper mold and a lower mold; the upper mold includes an upper fixed plate (1), a first A plate (2), and a second A plate (3) that are stacked and fastened in sequence; the lower mold includes a B plate (4), an ejector mechanism, and a lower fixed plate (7) that are connected in sequence; the ejector mechanism includes an upper ejector plate (5), a lower ejector plate (6), and an internal ejector pin; The cavity includes: a front mold core (8) and a rear mold core (9); The transmission structure includes: a first gear transmission assembly, a second and third gear coaxial transmission assembly, a large gear sleeve transmission assembly, a fourth gear and a front mold insert assembly; The first gear transmission assembly includes a servo motor (11) and a first gear (12) fixed on the servo motor (11); the servo motor (11) is fixed on the second A plate (3); The coaxial transmission assembly of the second and third gears includes a second gear (14), a third gear (17), a guide post (35), a first bearing (15), and a second bearing (16); the second gear (14) is fixedly mounted on the guide post (35), and the first bearing (15) is mounted on the lower end of the guide post (35); the third gear (17) is mounted on the upper end of the guide post (35), and the second bearing (16) is mounted on the lower end of the third gear (17), and the guide post (35) is mounted between the first A plate (2) and the second A plate (3), and a chain (31) connects the first gear (12) and the third gear (17); The large gear sleeve transmission assembly includes a large gear sleeve (21), a guide post (22), and a large gear sleeve pressure plate (32); the guide post (22) is fixedly installed on the upper end of the first A plate (2) with screws; the large gear sleeve (21) is installed on the guide post (22) and the outer teeth of the large gear sleeve (21) mesh with the second gear (14); The fourth gear and front mold insert assembly includes: a fourth gear (25), a first front mold insert (26), a second front mold insert (27), and a third front mold insert (29); the fourth gear (25) is fixed on the first front mold insert (26) and meshes with the inner teeth of the large gear sleeve (21); the second front mold insert (27) and the third front mold insert (29) are respectively installed in the groove at the lower end of the first front mold insert (26) and fixed inside the first front mold insert (26); the lower end of the first front mold insert (26) passes through the front mold core (8) and is installed on the second A plate (3); the upper end of the first front mold insert (26) passes through and is fixed inside the upper fixing plate (1).

2. The servo motor unscrewing mold structure according to claim 1, characterized in that: The first gear transmission assembly may further include: a mold servo motor (11), a servo motor mounting base (10), and a first square pin (13); the mold servo motor (11) is fixed on the servo motor mounting base (10), the first gear (12) on the servo motor (11) is fixed on the servo motor (11) by the first square pin (13), and the servo motor mounting base (10) is fixed on the second A plate (3).

3. The servo motor unscrewing mold structure according to claim 1, characterized in that: The coaxial transmission assembly of the second and third gears may further include: a second square pin (18), a first snap ring (19), a second snap ring (20), a fourth snap ring (34), a third square pin (36), and a chain (31); the guide post (35) is installed between the first A plate (2) and the second A plate (3); The second gear (14) is mounted on the guide post (35). A second retaining ring (20) and a fourth retaining ring (34) are mounted on the top and bottom of the second gear (14), respectively. A third pin (36) is mounted on the second gear (14) to fix the second gear (14) on the guide post (35). A first bearing (15) is mounted on the lower end of the guide post (35). The third gear (17) is installed on the upper end of the guide post (35). The upper end of the third gear (17) is equipped with a first snap ring (19) and a second square pin (18) is installed on the third gear (17) to fix the third gear (17) on the guide post (35). The lower end of the third gear (17) is equipped with a second bearing (16). The upper surface of the second bearing (16) is close to the second A plate (3), and the lower surface of the first bearing (15) is close to the first A plate (2). The first gear (12) and the third gear (17) are connected by a chain (31).

4. The servo motor unscrewing mold structure according to claim 1, characterized in that: The large gear sleeve transmission assembly may also include a large gear sleeve pressure plate (32); the large gear sleeve (21) is fixed with the large gear sleeve pressure plate (32), and the large gear sleeve pressure plate (32) is fixed on the second A plate (3).

5. The servo motor unscrewing mold structure according to claim 1, characterized in that: The fourth gear and front mold insert assembly may further include: a first guide sleeve (23), a pressure plate (24), a second guide sleeve (28), and a pin (30); The fourth gear (25) is equipped with a fourth retaining ring (34) at its upper end. The second guide sleeve (28) passes through the first front mold insert (26) and is installed in the second A plate (3). The second front mold insert (27) and the third front mold insert (29) are respectively installed in the groove at the lower end of the first front mold insert (26) and fixed in the first front mold insert (26) with a pin (30). The lower end of the first front mold insert (26) passes through the front mold core (8). The first guide sleeve (23) is installed in the first A plate (2) and passes through the first guide sleeve (23) at the upper end of the first front mold insert (26). The pressure plate (24) on the first guide sleeve (23) is fixed in the upper fixing plate (1) with screws.

Images