Motor core-pulling twisted tooth structure

Abstract

The utility model relates to the technical field of dies, and discloses a motor core-pulling and tooth-twisting structure which is characterized in that a driving transmission mechanism and a starting motor are arranged, a worm is driven by the motor to rotate, worm gears on the front side and the rear side of the worm rotate, and a fourth gear drives a fifth gear on the left side to rotate; meanwhile, a fifth gear drives a corresponding sixth gear to rotate, so that stable driving of the whole device is achieved, it is guaranteed that in the injection molding process before mold opening, under high pressure, a transmission mechanism (such as the gears) cannot loosen under the pressure effect, a motor is prevented from rotating, self-locking is provided through cooperation of a worm, a worm gear and the multiple sets of gears, and the service life of the device is prolonged. Products are prevented from moving, and defects such as bubbles and shrinkage cavities cannot be generated on the surfaces of the products.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, and particularly relates to a motor core-pulling and thread-rolling structure. Background Technique

[0002] The motor core-pulling and thread-rolling structure usually sets the thread-rolling mechanism and the core-pulling mechanism independently, avoiding the maintenance difficulty problem brought by the traditional embedded installation method. This design enables the thread-rolling mechanism and the core-pulling mechanism to be maintained and replaced separately.

[0003] In the existing technology, the device usually consists of a motor, a transmission part, and a thread-rolling part. The motor provides rotational power to drive the movement of other components. The motor can be an electric motor, a hydraulic motor, a pneumatic motor, etc., and gears are used to transmit the rotational power of the motor to the core-pulling and thread-rolling mechanisms. However, in the actual use process, during the mold casting process, the molten plastic material is injected into the mold cavity under high pressure, and under the high pressure, the transmission mechanism (such as gears, etc.) loosens under the pressure, causing the motor to rotate selflessly, and then causing the unmolded product to move, resulting in uneven distribution of the material in the mold cavity, and thus generating defects such as bubbles and shrinkage holes on the product surface. Therefore, a motor core-pulling and thread-rolling structure needs to be improved. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a motor core-pulling and thread-rolling structure to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A motor core-pulling and thread-rolling structure, including a connection shell, a fixing pin is threadedly connected inside the connection shell, a driving transmission mechanism is arranged inside the connection shell, and a core-pulling mechanism is arranged on the left side of the driving rotation mechanism;

[0006] The driving transmission mechanism includes a driving component and a transmission component, and the transmission component is arranged on the left side of the driving component to facilitate the rotation of the gear set.

[0007] Preferably, the driving component includes a motor, the motor is fixedly connected to the right side of the connection shell, a worm is fixedly connected to the output end of the motor, worm wheels are meshed on the front and back sides of the worm, a first gear is fixedly connected to the top of the worm wheel, a second gear is externally meshed with the first gear, and a third gear is meshed on the back of the second gear to facilitate the stable driving of the whole device.

[0008] Preferably, the worm wheel is rotatably connected inside the connection shell, and the worm is rotatably connected inside the connection shell to facilitate driving the worm wheel to rotate.

[0009] Preferably, the transmission assembly includes a fourth gear which meshes with the left side of the third gear. A connecting gear meshes with the left side of the fourth gear. The connecting gear externally meshes with a fifth gear, and the left side of the fifth gear meshes with a sixth gear, facilitating the stable rotation of the sixth gear and the connecting gear.

[0010] Preferably, there are four connecting gears and four sixth gears each, and the connecting gears and the sixth gears are evenly distributed in two groups outside the fifth gear, facilitating the synchronous driving of the core insert to rotate.

[0011] Preferably, the core pulling mechanism includes a core insert which is fixedly connected inside the connecting gear and the sixth gear. A rear mold insert is threadedly connected inside the core insert. A push block insert is movably connected to the outside of the rear mold insert, and a wear-resistant insert is movably connected to the bottom of the rear mold insert, facilitating the separation of the thread on the core insert from the product.

[0012] Preferably, grooves are provided at corresponding positions inside the core insert, the connecting gear, and the sixth gear, and the core insert is fixedly connected in the grooves, facilitating the stable rotation of the core insert.

[0013] Compared with the prior art, the present utility model provides a motor core pulling and threading structure, which has the following

[0014] Beneficial effects:

[0015] 1. For this motor core pulling and threading structure, through the provided driving and transmission mechanism, when the motor is started, the worm is driven by the motor to rotate, and then the front and rear worm wheels rotate. The fourth gear drives the fifth gear to rotate on the left side, and at the same time, the fifth gear drives the corresponding sixth gears to rotate respectively, thereby realizing the stable driving of the whole device. It is ensured that during the injection molding process before mold opening, under high pressure, the transmission mechanism (such as gears, etc.) will not loosen under the action of pressure, preventing the motor from self-rotating. The cooperation of the worm and worm wheel and multiple groups of gears provides self-locking, avoiding the movement of the product and ensuring that there are no defects such as air bubbles and shrinkage holes on the product surface.

[0016] 2. For this motor core pulling and threading structure, through the provided core pulling mechanism, after mold opening, the connecting gear and the sixth gear drive the core inserts fixedly connected inside them to rotate respectively. During the rotation of the core insert, the rear mold insert is driven to rotate downward, so that the thread provided on the top of the rear mold insert is separated from the product. Subsequently, after the thread of the product is disengaged, the product drops, thus completing the production. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings:

[0018] Figure 1 It is a schematic diagram of the external structure of the present utility model;

[0019] Figure 2 It is a schematic diagram of the external structure of the drive transmission mechanism of the present utility model;

[0020] Figure 3 It is a schematic diagram of the external structure of the drive assembly of the present utility model;

[0021] Figure 4 It is a schematic diagram of the external structure of the transmission assembly of the present utility model;

[0022] Figure 5 It is a schematic diagram of the external structure of the core-pulling mechanism of the present utility model.

[0023] In the figure: 1. connecting shell; 2. fixing pin; 3. drive transmission mechanism; 4. core-pulling mechanism; 31. drive assembly; 32. transmission assembly; 311. motor; 312. worm; 313. worm gear; 314. first gear; 315. second gear; 316. third gear; 321. fourth gear; 322. connecting gear; 323. fifth gear; 324. sixth gear; 41. core insert; 42. rear mold insert; 43. push block insert; 44. wear-resistant insert. Specific embodiments

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0025] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] Embodiment 1:

[0027] See also Figures 1-5 The utility model provides a technical solution: a motor core-pulling thread structure, comprising a connecting shell 1, a fixing pin 2 is threadedly connected to the connecting shell 1, a driving transmission mechanism 3 is arranged inside the connecting shell 1, and a core-pulling mechanism 4 is arranged on the left side of the driving rotation mechanism;

[0028] The drive transmission mechanism 3 includes a drive assembly 31 and a transmission assembly 32. The transmission assembly 32 is arranged on the left side of the drive assembly 31 to facilitate the rotation of the gear set.

[0029] Furthermore, the drive assembly 31 includes a motor 311, which is fixedly connected to the right side of the connecting shell 1. The output end of the motor 311 is fixedly connected to a worm 312, and the front and rear sides of the worm 312 are meshed with a worm gear 313. The top of the worm gear 313 is fixedly connected to a No. 1 gear 314, and the outside of the No. 1 gear 314 is meshed with a No. 2 gear 315, and the back of the No. 2 gear 315 is meshed with a No. 3 gear 316, so as to achieve stable driving of the entire device.

[0030] Furthermore, the worm wheel 313 is rotatably connected to the interior of the connection housing 1 , and the worm 312 is rotatably connected to the interior of the connection housing 1 , so as to drive the worm wheel 313 to rotate.

[0031] Furthermore, the transmission assembly 32 includes a fourth gear 321, which is engaged with the left side of the third gear 316. A connecting gear 322 is engaged with the left side of the fourth gear 321, and a fifth gear 323 is engaged with the outside of the connecting gear 322. A sixth gear 324 is engaged with the left side of the fifth gear 323, so as to drive the sixth gear 324 and the connecting gear 322 to rotate stably.

[0032] Furthermore, there are four connecting gears 322 and four sixth gears 324 , and the connecting gears 322 and six gears 324 are evenly distributed outside the fifth gear 323 in groups of two, so as to synchronously drive the core insert 41 to rotate.

[0033] Embodiment 2:

[0034] See also Figure 5 , and combined with Example 1, it is further obtained that the core pulling mechanism 4 includes a core insert 41, the core insert 41 is fixedly connected to the connecting gear 322 and the inside of the sixth gear 324, the core insert 41 is internally threadedly connected to the rear mold insert 42, the rear mold insert 42 is externally movably connected to the push block insert 43, and the bottom of the rear mold insert 42 is movably connected to the wear-resistant insert 44, which facilitates the separation of the threaded thread on the core insert 41 from the product.

[0035] Further, grooves are provided at corresponding positions inside the core insert 41, the connecting gear 322, and the sixth gear 324, and the core insert 41 is fixedly connected in the grooves, facilitating the stable rotation of the core insert 41.

[0036] During the actual operation process, when the device is in use, during the mold opening process, by means of the driving transmission mechanism 3 provided, the motor 311 is started, the worm 312 is driven to rotate by the motor 311, and the two worm wheels 313 on the front and rear sides of the worm 312 rotate, so that the first gear 314 is driven to rotate by the worm wheel 313, and then the second gear 315 is driven to rotate by the first gear 314, so that the second gear drives the third gear 316 to rotate, and then the fourth gear 321 is driven to rotate by the third gear 316, so that the left fifth gear 323 is driven to rotate by the fourth gear 321, and at the same time, the corresponding sixth gears 324 are respectively driven to rotate by the fifth gear 323, thus realizing the stable driving of the whole device. By means of the core pulling mechanism 4 provided, after the mold is opened, the connecting gear 322 and the sixth gear 324 respectively drive the core insert 41 fixedly connected inside them to rotate, and during the rotation of the core insert 41, the rear film insert is driven to rotate downward, so that the thread on the top of the rear film insert is separated from the product, and then the product drops after the product thread is disengaged, thus completing the production.

[0037] It should be noted that in this article, relational terms such as first and second are only used 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

Claims

1. A motor core-pulling and thread-cutting structure, comprising a connecting shell (1), characterized in that: A fixing pin (2) is internally threadedly connected inside the connection shell (1). A driving transmission mechanism (3) is arranged inside the connection shell (1), and a core-pulling mechanism (4) is arranged on the left side of the driving transmission mechanism; The driving transmission mechanism (3) includes a driving component (31) and a transmission component (32), and the transmission component (32) is arranged on the left side of the driving component (31); The driving component (31) includes a motor (311). The motor (311) is fixedly connected to the right side of the connection shell (1). The output end of the motor (311) is fixedly connected to a worm (312). The front and back sides of the worm (312) are engaged with worm wheels (313). A first gear (314) is fixedly connected to the top of the worm wheel (313). A second gear (315) is externally engaged with the first gear (314). A third gear (316) is engaged with the back of the second gear (315); The transmission component (32) includes a fourth gear (321). The fourth gear (321) is engaged with the left side of the third gear (316). A connecting gear (322) is engaged with the left side of the fourth gear (321). A fifth gear (323) is externally engaged with the connecting gear (322). A sixth gear (324) is engaged with the left side of the fifth gear (323).

2. The motor core-pulling and thread rolling structure according to claim 1, wherein: The worm wheel (313) is rotatably connected inside the connection shell (1), and the worm (312) is rotatably connected inside the connection shell (1).

3. A motor core-pulling and thread rolling structure according to claim 1, characterized in that: The number of the connecting gears (322) and the sixth gears (324) is four each, and the connecting gears (322) and the sixth gears (324) are evenly distributed outside the fifth gear (323) in groups of two.

4. A core-pulling and thread-rolling structure of a motor according to claim 1, characterized in that: The core-pulling mechanism (4) includes a core insert (41). The core insert (41) is fixedly connected inside the connecting gears (322) and the sixth gears (324). A rear mold insert (42) is internally threadedly connected inside the core insert (41). A push block insert (43) is movably connected to the outside of the rear mold insert (42). A wear-resistant insert (44) is movably connected to the bottom of the rear mold insert (42).

5. A core-pulling and thread-cutting structure of a motor according to claim 4, characterized in that: Grooves are formed at corresponding positions inside the core insert (41) and the connecting gears (322) and the sixth gears (324), and the core insert (41) is fixedly connected inside the grooves.

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