Thread releasing structure of sliding block in threaded ring

Abstract

The utility model discloses a thread ring inner sliding block thread removing structure which comprises a forming base, a plurality of inner sliding blocks arranged in the forming base in a sliding mode and a mold removing block driving the inner sliding blocks to move. A demolding groove is formed in the forming base, the inner sliding blocks and the demolding block are arranged in the demolding groove in a sliding mode, the inner sliding blocks define a thread forming block used for forming workpiece threads, and the peripheries of the inner sliding blocks form thread protruding parts. The demolding block is in sliding fit with the inner sliding block, and the demolding block slides in the axial direction of the demolding groove so that the inner sliding block can be folded or expanded in the radial direction of the demolding groove.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a thread-removing structure of a slider in a threaded ring. Background Art

[0002] Plastic molding, also known as injection molding, is a molding method that combines injection and molding. Its advantages include high production speed, high efficiency, automated operation, a wide variety of designs and colors, and the ability to produce shapes from simple to complex, large to small. Furthermore, it provides precise product dimensions, easy product upgrades, and the ability to create complex shapes. Injection molding is suitable for mass production and complex-shaped products.

[0003] After the existing plastic products with internal threaded hole structures are injected, the internal threaded hole part is often cored out by a rotary core-pulling mechanism during the removal of the material. However, the injection mold structure of the rotary core-pulling mechanism is not only complex in structure and bulky in overall size, but also has high manufacturing costs. Utility Model Content

[0004] In order to solve the technical problems existing in the background technology, the utility model proposes a thread-removing structure of a slider in a threaded ring.

[0005] The technical solutions adopted by the present invention to solve the technical problems are as follows:

[0006] A threaded ring inner slider stripping structure comprises a forming seat, a plurality of inner sliders slidably arranged in the forming seat, and a stripping module for driving the inner sliders to move;

[0007] A demoulding groove is formed on the forming seat, and the inner slider and the demoulding module are slidably arranged in the demoulding groove. The inner slider encloses a thread forming block for forming a workpiece thread, and the outer periphery of the inner slider forms a thread protrusion;

[0008] The stripping module forms a sliding fit with the inner slider, and the stripping module slides axially along the stripping groove to allow the inner slider to contract or expand radially along the stripping groove.

[0009] Preferably, the inner slider includes a first slider and a second slider, the stripping module is formed with a first sliding protrusion, the first slider is formed with a first sliding groove for the first sliding protrusion to be placed in, the second slider is formed with a second sliding protrusion, and the stripping module is formed with a second sliding groove for the second sliding protrusion to be placed in. Through the above improvements, after the injection molding is completed, the stripping module can be driven down by the air passage inside the mold, so that the first slider slides along the first sliding groove and the second slider slides along the second sliding protrusion, so that the first slider and the second slider will respectively move toward the center of the stripping groove, so that the molded workpiece can be demolded.

[0010] Preferably, the first slider slides along the first sliding protrusion, and the second slider slides along the second sliding groove, and the first sliding protrusion and the second sliding groove are arranged at an angle, and the inclination angle of the first sliding protrusion is greater than the inclination angle of the second sliding groove. Through the above improvement, since the first sliding protrusion and the second sliding groove are arranged at an angle, and the inclination angle of the first sliding protrusion is greater than the inclination angle of the second sliding groove, as the module is slid downward, the first slider and the second slider retract inward synchronously, and the sliding speed of the second slider is greater than that of the first slider, thereby avoiding interference between the first and second sliders during the sliding process.

[0011] Preferably, a guide seat is provided at the bottom of the forming seat, a sliding protrusion is formed on the side of the inner slider, and a guide groove is formed on the guide seat for the sliding protrusion to be placed in. Through the above improvement, the guide groove guides the sliding protrusion, thereby further improving the stability of the inner slider during the sliding process.

[0012] Preferably, the molding seat is provided with a plurality of anti-rotation protrusions arranged at circumferential intervals. Through the above improvements, the anti-rotation protrusions can form a plurality of through holes after the workpiece is formed, and the anti-rotation protrusions are placed in the through holes, which can prevent the workpiece from deflecting during the demolding process, further improving the molding quality.

[0013] Preferably, the top of the stripping module is formed with a sliding guide protrusion. Through the above improvement, a guide channel is formed in the mold, and the sliding guide protrusion slides in the guide channel during the demoulding process, thereby improving the stability of the stripping module during the up and down sliding process, thereby improving the demoulding quality.

[0014] Preferably, the bottom of the stripping module is formed with an exhaust channel. Through the above improvement, when demoulding is required, the air path on the mold can be used to exhaust air, and the air path is connected to the exhaust channel, causing the stripping module to slide down and drive the inner slider to retract inward, thereby realizing the demoulding of the threaded section of the workpiece.

[0015] Preferably, a reset elastic member is provided at the bottom of the stripping module. Through the above improvements, when the stripping is completed, the air extraction channel is stopped from being evacuated, and the reset elastic member acts on the stripping module to make it rise, and as the stripping module rises, the inner slider expands outwards and encloses a thread forming block.

[0016] Preferably, a rotation-stop groove is formed on the molding seat. Through the above improvements, the rotation-stop groove is set on the molding seat, so that a rotation-stop convex block will be formed after the workpiece is injection-molded. The rotation-stop convex block cooperates with the rotation-stop groove to avoid the workpiece from deviating during the demoulding process.

[0017] Preferably, the forming seat is embedded with an identification column for identifying the direction of the thread. Through the above improvement, the identification column is provided with an arrow indicating the direction of the thread, and the inner slider can be installed according to the identification column, thereby avoiding the situation where the inner slider is installed misplaced.

[0018] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0019] By arranging a demoulding groove on the forming seat, the inner slider and the demoulding module are slidably arranged in the demoulding module, and the inner slider can enclose a thread forming block for forming the workpiece thread. The outer periphery of the inner slider is formed with a thread convex portion. The demoulding module is used to form a sliding fit with the inner slider. The demoulding module slides axially along the demoulding groove to make the inner slider contract or expand radially along the demoulding groove, thereby realizing the demoulding of the workpiece thread. Not only is the structure simple and compact, but the volume of the entire mold is reduced, and the manufacturing cost of the module is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0022] Figure 3 This is a structural diagram of the forming seat of the present utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the inner slider and the stripping module of the present invention;

[0024] Figure 5 This is a schematic structural diagram of the inner slider of the present utility model;

[0025] Figure 6 This is a schematic diagram of the modular structure of the utility model;

[0026] In the figure: 1. Forming seat; 2. Guide seat; 3. Inner slider; 4. Demolding module; 5. Demolding groove; 6. Threaded forming block; 7. Threaded protrusion; 101. First slider; 102. Second slider; 103. First sliding protrusion; 104. First sliding groove; 105. Second sliding protrusion; 106. Second sliding groove; 201. Sliding protrusion; 202. Guide groove; 203. Anti-rotation protrusion; 204. Sliding guide protrusion; 205. Exhaust channel; 206. Reset elastic member; 207. Anti-rotation groove; 208. Identification column; DETAILED DESCRIPTION

[0027] 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.

[0028] It should be understood that although terms such as upper, middle, lower, top, end, etc. appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish elements from each other for ease of understanding, and are not used to define any direction or order limitation.

[0029] like Figure 1-6 As shown, a thread ring inner slider thread removal structure includes a forming seat 1, a plurality of inner sliders 3 slidably arranged in the forming seat 1, and a stripping module 4 for driving the inner sliders 3 to move.

[0030] Specifically, a demolding groove 5 is formed on the forming seat 1, and the inner slider 3 and the demolding module 4 are slidably arranged in the demolding groove 5. The inner slider 3 encloses a thread forming block 6 for forming the workpiece thread, and the outer periphery of the inner slider 3 forms a thread protrusion 7.

[0031] Furthermore, since the stripping module 4 and the inner slide block 3 form a sliding fit, the stripping module 4 slides axially along the stripping groove 5 so that the inner slide block 3 contracts or expands radially along the stripping groove 5 .

[0032] By setting a demolding groove 5 on the forming seat 1, the inner slider 3 and the demolding module 4 are slidably set in the demolding module 4, and the inner slider 3 can enclose a thread forming block 6 for forming the workpiece thread. The outer periphery of the inner slider 3 is formed with a thread protrusion 7. The demolding module 4 is used to form a sliding fit with the inner slider 3. The demolding module 4 slides axially along the demolding groove 5 to make the inner slider 3 radially contract or expand along the demolding groove 5, thereby realizing the demolding of the workpiece thread. Not only is the structure simple and compact, but the volume of the entire mold is reduced, and the manufacturing cost of the module is greatly reduced.

[0033] like Figures 1 to 6 As shown, a further explanation of the implementation method of the inner slider 3 in this embodiment is provided, wherein the inner slider 3 includes a first slider 101 and a second slider 102, a first sliding protrusion 103 is formed on the stripping module 4, a first sliding groove 104 is formed on the first slider 101 for the first sliding protrusion 103 to be placed, a second sliding protrusion 105 is formed on the second slider 102, and a second sliding groove 106 is formed on the stripping module 4 for the second sliding protrusion 105 to be placed.

[0034] When the injection molding is completed and the mold is to be demolded, the demolding module 4 can be driven down by the air channel inside the mold, so that the first slider 101 slides along the first sliding groove 104, and the second slider 102 slides along the second sliding protrusion 105, so that the first slider 101 and the second slider 102 will synchronously move toward the center of the demolding groove 5, so that the molded workpiece can be demolded.

[0035] Furthermore, the first slider 101 slides along the first sliding protrusion 103 , and the second slider 102 slides along the second sliding groove 106 . The first sliding protrusion 103 and the second sliding groove 106 are inclined, and the inclination angle of the first sliding protrusion 103 is greater than the inclination angle of the second sliding groove 106 .

[0036] Since the first sliding protrusion 103 and the second sliding groove 106 are arranged at an angle, and the inclination angle of the first sliding protrusion 103 is greater than the inclination angle of the second sliding groove 106, the sliding speed of the second slider 102 is greater than the first slider 101, thereby avoiding interference between the first slider 101 and the second slider 102 during the sliding process, and as the demolding module 4 slides downward, the first slider 101 and the second slider 102 shrink inward synchronously, thereby realizing rapid demolding of the threaded segment of the workpiece.

[0037] Among them, the forming block includes three first sliders 101 and second sliders 102 arranged alternately along the circumferential direction. The cross-sectional shape of the first slider 101 is a crescent shape, and a dovetail groove is provided on its inner wall. The cross-sectional shape of the second slider 102 is a trapezoidal shape with a narrow outside and a wide inside, and a dovetail boss is provided on its inner inclined surface.

[0038] like Figures 1 to 6 As shown, in some other embodiments, a guide seat 2 is provided at the bottom of the forming seat 1, a sliding protrusion 201 is formed on the side of the inner slider 3, and a guide groove 202 is formed on the guide seat 2 for the sliding protrusion to be placed. The guide groove 202 guides the sliding protrusion 201, thereby further improving the stability of the inner slider 3 during the sliding process.

[0039] Preferably, a connection hole is formed on the inner slider 3 and a screw hole is formed on the de-module 4 , and the inner slider 3 and the de-module 4 can be connected by screws.

[0040] In addition, a connecting hole is also provided on the sliding protrusion 201, and a screw hole is formed on the guide seat 2. The inner sliding protrusion 201 can be fixedly connected to the guide seat 2 by screws, so that the entire set of inner sliding blocks 3 can be removed from the threaded structure and placed as a whole to avoid the parts from falling apart during placement.

[0041] At the same time, the connection holes and the screw holes can also be used for installation alignment, thereby ensuring the accuracy of the installation of the inner slider 3 and the stripping module 4.

[0042] Preferably, a sliding guide protrusion 204 is formed on the top of the demolding module 4, and a guide channel is formed in the mold. During the demolding process, the sliding guide protrusion 204 will slide in the guide channel, thereby improving the stability of the demolding module 4 during the up and down sliding process, thereby improving the demolding quality.

[0043] Preferably, an exhaust channel 205 is formed at the bottom of the demolding module 4. When demolding is required, the air circuit on the mold can be used for exhaust. The air circuit is connected to the exhaust channel 205, causing the demolding module 4 to slide down and drive the inner slider 3 to retract inward, thereby realizing the demolding of the threaded section of the workpiece.

[0044] Furthermore, a reset elastic member 206 is provided at the bottom of the demolding module 4. When the demolding is completed, the vacuuming of the vacuum channel 205 is stopped, and the reset elastic member 206 acts on the demolding module 4 to make it rise. As the demolding module 4 rises, the inner slider 3 expands outward and encloses a threaded forming block 6.

[0045] like Figures 1 to 6 As shown, a further explanation of the implementation method of the forming seat 1 in this embodiment is provided, wherein the forming seat 1 is provided with a plurality of anti-rotation protrusions 203 arranged at circumferential intervals. The anti-rotation protrusions 203 can form a plurality of through holes after the workpiece is formed, and the anti-rotation protrusions 203 are placed in the through holes, which can prevent the workpiece from being offset during the demolding process, thereby further improving the molding quality.

[0046] Furthermore, a rotation-stop groove 207 is formed on the molding seat 1, so that a rotation-stop convex block is formed after the workpiece is injection-molded. The rotation-stop convex block 203 cooperates with the rotation-stop groove 207 to avoid the workpiece from deviating during the demolding process.

[0047] Preferably, an identification column 208 for identifying the thread direction is embedded on the forming seat 1. An arrow indicating the thread direction is provided on the identification column 208. The inner slider 3 can be installed according to the identification column 208 to avoid misalignment of the inner slider 3.

[0048] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A threaded ring inner slider unthreading structure, characterized in that: It comprises a forming seat (1), a plurality of inner slide blocks (3) slidably arranged in the forming seat (1), and a stripping module (4) for driving the inner slide blocks (3) to move; A demoulding groove (5) is formed on the molding seat (1), the inner slider (3) and the demoulding module (4) are slidably arranged in the demoulding groove (5), the inner slider (3) encloses a thread forming block (6) for forming a workpiece thread, and the outer periphery of the inner slider (3) forms a thread protrusion (7); The stripping module (4) forms a sliding fit with the inner slide block (3), and the stripping module (4) slides axially along the stripping groove (5) to allow the inner slide block (3) to contract or expand radially along the stripping groove (5).

2. A threaded ring inner slider unthreading structure according to claim 1, characterized in that: The inner slider (3) includes a first slider (101) and a second slider (102); a first sliding protrusion (103) is formed on the stripping module (4); a first sliding groove (104) is formed on the first slider (101) for the first sliding protrusion (103) to be inserted into; a second sliding protrusion (105) is formed on the second slider (102); and a second sliding groove (106) is formed on the stripping module (4) for the second sliding protrusion (105) to be inserted into.

3. A threaded ring inner slider unthreading structure according to claim 2, characterized in that: The first sliding block (101) slides along the first sliding protrusion (103), and the second sliding block (102) slides along the second sliding groove (106), and the first sliding protrusion (103) and the second sliding groove (106) are arranged to be inclined, and the inclination angle of the first sliding protrusion (103) is greater than the inclination angle of the second sliding groove (106).

4. A threaded ring inner slider unthreading structure according to claim 1, characterized in that: A guide seat (2) is provided at the bottom of the forming seat (1), a sliding protrusion (201) is formed on the side of the inner sliding block (3), and a guide groove (202) for the sliding protrusion to be placed is formed on the guide seat (2).

5. The threaded ring inner slider dethreading structure according to claim 1, characterized in that: The forming seat (1) is provided with a plurality of anti-rotation protrusions (203) arranged at circumferential intervals.

6. A threaded ring inner slider dethreading structure according to claim 1, characterized in that: The top of the stripping module (4) is formed with a sliding guide protrusion (204).

7. The threaded ring inner slider dethreading structure according to claim 1, characterized in that: The bottom of the degassing module (4) is formed with an air extraction channel (205).

8. The threaded ring inner slider dethreading structure according to claim 1, characterized in that: A reset elastic member (206) is provided at the bottom of the stripping module (4).

9. The threaded ring inner slider dethreading structure according to claim 1, characterized in that: A rotation-stop groove (207) is formed on the forming seat (1).

10. The threaded ring inner slider dethreading structure according to claim 1, characterized in that: An identification column (208) for identifying the direction of the thread is embedded in the forming seat (1).

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