In-mold tapping mold

Abstract

The utility model discloses an in-mold tapping mold, which relates to the technical field of in-mold tapping molds and comprises a top plate, guide holes are equidistantly formed in the periphery of the upper end of the top plate, supporting columns are sleeved at the lower ends of the inner sides of the guide holes, buffer springs are arranged on the outer sides of the lower ends of the supporting columns, and the buffer springs at the lower ends of the supporting columns are clamped in a positioning plate. One side of the positioning plate forms a tapping groove towards the inner side, stamping plates are arranged on the two sides of the middle of the positioning plate, and base plates are arranged on the upper sides and the lower sides of the stamping plates. According to the automatic tapping device, the supporting column is matched with the tapping machine, punching work can be conveniently carried out on the punching template, punching efficiency is improved, the automatic tapping function is achieved, the punching template is conveniently fixed through cooperation of the telescopic spring and the roller shaft, the tapping stability of the punching template is improved, and the automatic tapping device is convenient to use. And therefore, the function of positioning the punching template is realized, and the problem that the product quality is influenced by the change of the position of the tapping hole is finally solved.

Description

Technical Field

[0001] The utility model relates to the technical field of in-mold tapping dies, and particularly relates to an in-mold tapping die. Background Art

[0002] In the early stage, the die design was relatively simple, and the internal thread processing usually relied on manual tools or simple machinery. The die design mainly focused on the injection molding of plastic parts, and the tapping process needed to be carried out after injection molding. The processing of internal threads was usually carried out after injection molding, and the processing process included manual or mechanical tapping. This process had low efficiency and was prone to quality problems. With the progress of die design technology, the in-mold tapping technology began to be introduced. The dies at this stage began to integrate the tapping function, reducing the subsequent processing steps and improving the production efficiency. The initial in-mold tapping dies mostly adopted mechanical tapping devices, which usually included tools for tapping threads and automatic transmission devices. However, these devices were relatively complex and had high maintenance costs. The composition structure of the in-mold tapping die included a die base, a die cavity, a tapping tool, a clamping mechanism, etc. In the use process of an existing in-mold tapping die, during the tapping process, due to the movement of the punching template, the change of the tapping hole position may affect the product quality. Therefore, it is necessary to solve and handle the above technical problems. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to propose an in-mold tapping die.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: An in-mold tapping die includes a top plate. Guide holes are equidistantly opened around the upper end of the top plate. The lower ends of the inner sides of the guide holes are all sleeved with support columns. Buffer springs are arranged on the outer sides of the lower ends of the support columns, and the buffer springs at the lower ends of the support columns are clamped in a positioning plate. An in-mold tapping groove is formed on the inner side of one side of the positioning plate, and stamping plates are installed on both sides of the middle of the positioning plate. Cushion plates are installed on both the upper and lower sides of the stamping plates.

[0005] Preferably, fixing blocks are arranged on both sides between the cushion plates. Clamping grooves are opened between the two fixing blocks on both sides, and connecting plates are installed inside the clamping grooves.

[0006] Preferably, a tapping machine is installed between the two sides of the cushion plates. A positioning mechanism is installed behind the tapping machine, and the tapping port of the tapping machine is placed above the in-mold tapping groove.

[0007] Preferably, the positioning mechanism includes a fixing block, a fixing rod, a fixing plate and a movable plate. The fixing block is fixedly connected to the rear side of the tapping machine, and a plurality of fixing holes are equidistantly opened at the lower end of the fixing block. Fixing rods are installed inside the fixing holes. The fixing rods are movably clamped on the fixing plate, and a movable plate is clamped and sleeved on the middle of the fixing rod at the upper end of the fixing plate.

[0008] Preferably, support plates are fixedly connected to both sides and one side of the middle part of the positioning plate in the vertical downward direction. The lower ends of the support plates are fixedly connected to a bottom plate, and a through hole is formed in one side of the middle part of the bottom plate.

[0009] Preferably, a punching template is placed on one side of the upper end of the bottom plate, and a tap is arranged in the through hole of the bottom plate. The tap is clamped in the tapping chuck groove on one side of the tapping machine, and the tapping machine reciprocates up and down during operation.

[0010] Preferably, roller shafts are arranged on both horizontal sides of the punching template. Positioning cylinders are arranged at both upper and lower ends on one side of the roller shafts. The positioning cylinders are clamped in clamping cylinders, and a telescopic spring is arranged between the clamping cylinders and the positioning cylinders.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: In the present utility model, through the mutual cooperation of the support columns and the tapping machine, it is convenient to perform punching work on the punching template, improving the efficiency of punching, and further realizing the function of automatic tapping. Then, through the mutual cooperation of the telescopic spring and the roller shafts, it is convenient to fix the punching template, improving the stability of tapping the punching template, and further realizing the function of positioning the punching template. Finally, the problem that the position of the tapping hole changes and affects the product quality is solved. At the same time, through in-mold tapping operation, secondary operation can be effectively avoided. It can realize the combination of stamping and tapping actions of parts that need to be tapped through an in-mold tapping machine, and complete automation in one process. Tapping and stamping are carried out simultaneously on the punching press, saving time, having high tapping accuracy, and improving efficiency. And continuous die stamping can be carried out, greatly saving the cost of manual tapping. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0013] Figure 1 is a schematic three-dimensional overall structure diagram of the present utility model;

[0014] Figure 2 is a schematic three-dimensional overall structure diagram of the other side of the present utility model;

[0015] Figure 3 is a schematic three-dimensional overall structure diagram of the bottom view of the present utility model;

[0016] Figure 4 is a schematic front view structure diagram of the present utility model;

[0017] Figure 5 is a schematic front view sectional structure diagram of the present utility model.

[0018] Reference numerals in the figure: 1, top plate; 2, support column; 3, positioning plate; 4, backing plate; 5, tapping machine; 6, tap; 7, punching template; 8, bottom plate; 9, positioning cylinder; 10, roller shaft; 11, telescopic spring. Specific implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] Embodiment: Refer to Figures 1-5 , a in-mold tapping die in the present invention includes a top plate 1. Guide holes are equidistantly opened around the upper end of the top plate 1. Buffer springs are sleeved on the lower ends of the inner sides of the guide holes. Buffer springs at the lower ends of the support columns 2 are clamped in the positioning plate 3. An internal thread groove is formed inwardly on one side of the positioning plate 3. Stamping plates are installed on both sides of the middle of the positioning plate 3. Backing plates 4 are installed on both the upper and lower sides of the stamping plates. Through the support columns 2 between the top plate 1 and the positioning plate 3, it is convenient for the die to move up and down reciprocally; Fixed blocks are provided on both sides between the backing plates 4. Clamping grooves are opened between the two fixed blocks on both sides. Connecting plates are installed inside the clamping grooves. By mutually clamping the fixed blocks and the connecting plates, it is convenient to prevent the die from moving when repeatedly punching; An internal thread machine 5 is installed between the two sides of the backing plate 4. A positioning mechanism is installed behind the internal thread machine 5. And the tapping port of the internal thread machine 5 is placed at the upper end of the internal thread groove. Through the internal thread machine at the upper end of the internal thread groove, it is convenient to perform tapping operations on the template; The purpose of chip-free machining is achieved. Since the tapping uses an extrusion tap, no chips will be formed due to cutting during the thread forming process, achieving clean and environmentally friendly, and the strength of the thread is well improved; These are incomparable to traditional process machining.

[0021] In the present utility model, the positioning mechanism includes a fixed block, a fixed rod, a fixed plate and a movable plate. The fixed block is fixedly connected to the rear side of the tapping machine 5, and a plurality of fixing holes are equidistantly formed in the lower end of the fixed block. Fixed rods are installed inside the fixing holes, and the fixed rods are movably clamped on the fixed plate. The middle part of the fixed rod at the upper end of the fixed plate is sleeved with a movable plate. Through the fixed rod and the movable plate, it is convenient to keep the tapping machine 5 in an accurate vertical position during repeated tapping; on both sides and one side of the middle part of the positioning plate 3, support plates are fixedly connected vertically downward. The lower end of the support plate is fixedly connected to the bottom plate 8. A through hole is formed in one side of the middle part of the bottom plate 8. Through the bottom plate 8 and the through hole, it is convenient for quick and efficient punching; a punching template 7 is placed on one side of the upper end of the bottom plate 8, and a tapping die 6 is arranged in the through hole of the bottom plate 8. The tapping die 6 is clamped in the tapping clamping groove on one side of the tapping machine 5. The tapping machine 5 reciprocates up and down during operation; roller shafts 10 are arranged on both horizontal sides of the punching template 7. Positioning cylinders 9 are arranged at both upper and lower ends on one side of the roller shaft 10. The positioning cylinder 9 is clamped in the clamping cylinder, and a telescopic spring 11 is installed between the clamping cylinder and the positioning cylinder 9. Through the roller shaft 10 and the telescopic spring 11, it is convenient to clamp and fix the template.

[0022] Working principle: When the present utility model is in use, first, through the support column 2 between the top plate 1 and the positioning plate 3, it is convenient to support and install the mold. Then, through the fixed plate and the connecting plate between the cushion plates 4, it is convenient to protect the tapping machine 5 and prevent the tapping machine 5 from being damaged during the tapping process. Then, through the tapping machine 5 and the fixed plate, it is convenient to fix the position of the tapping machine 5. Then, through the movable plate and the fixed rod, it is convenient for the tapping machine 5 to reciprocate up and down for tapping. Then, through the tapping die 6 and the through hole, it is convenient to punch the punching template 7. Then, through the support plate and the bottom plate 8, it is convenient to form a mold tapping cavity. Then, through the telescopic spring 11 between the positioning cylinder 9 and the roller shaft 10, it is convenient to fix the punching template 7 and prevent the tapping position from being inaccurate during the punching process; through in-mold tapping operation, it can effectively avoid secondary operations (first stamping and then tapping). It can realize the combination of stamping and tapping actions of parts that need to be tapped through an in-mold tapping machine and complete automation in one process. Tapping and stamping are carried out synchronously directly on the punching press, saving time, having high tapping accuracy and improving efficiency.

[0023] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. An in-mold tapping mold, comprising a top plate (1), characterized in that: Guide holes are equidistantly formed around the upper end of the top plate (1), and support columns (2) are sleeved at the lower ends of the inner sides of the guide holes. A buffer spring is provided on the outer side of the lower end of the support column (2), and the buffer spring at the lower end of the support column (2) is clamped in the positioning plate (3). A tapping groove is formed on one side of the positioning plate (3) toward the inside, and stamping plates are installed on both sides of the middle of the positioning plate (3), and pads (4) are installed on both upper and lower sides of the stamping plate.

2. The in-mold tapping mold according to claim 1, characterized in that: Fixed blocks are provided on both sides between the pads (4), a clamping groove is provided between the fixed blocks on both sides, and a connecting plate is installed inside the clamping groove.

3. The in-mold tapping mold according to claim 1, characterized in that: A tapping machine (5) is installed between the two sides of the pad (4), a positioning mechanism is installed behind the tapping machine (5), and the tapping opening of the tapping machine (5) is placed at the upper end of the tapping groove.

4. The in-mold tapping mold according to claim 3, characterized in that: The positioning mechanism comprises a fixed block, a fixed rod, a fixed plate and a movable plate. The fixed block is fixedly connected to the rear side of the tapping machine (5), and a plurality of fixed holes are equidistantly provided at the lower end of the fixed block. Fixed rods are installed inside the fixed holes. The fixed rods are movably clamped on the fixed plate. The movable plate is clamped in the middle of the fixed rod at the upper end of the fixed plate.

5. The in-mold tapping mold according to claim 1, characterized in that: Support plates are fixedly connected to both sides of the positioning plate (3) and one side of the middle portion in a downward vertical direction, a bottom plate (8) is fixedly connected to the lower end of the support plate, and a through hole is provided on one side of the middle portion of the bottom plate (8).

6. The in-mold tapping mold according to claim 5, characterized in that: A punching template (7) is placed on one side of the upper end of the bottom plate (8), and a tap (6) is provided in the through hole of the bottom plate (8). The tap (6) is clamped in a tapping clamping groove on one side of the tapping machine (5). The tapping machine (5) reciprocates up and down during operation.

7. The in-mold tapping mold according to claim 6, characterized in that: Roller shafts (10) are provided on both horizontal sides of the punching template (7), and positioning cylinders (9) are provided on both upper and lower ends of one side of the roller shaft (10). The positioning cylinder (9) is clamped in the clamping cylinder, and a telescopic spring (11) is installed between the clamping cylinder and the positioning cylinder (9).

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