Injection mold with twisted teeth on sliding block

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to an injection mold with twisted teeth on a sliding block, which comprises a mounting seat, a hydraulic motor is fixedly mounted on the right side of the mounting seat, a transmission shaft is fixedly mounted at the output end of the hydraulic motor, a sliding seat is slidably connected in the mounting seat, and a tooth socket is fixedly mounted in the sliding seat. And a sliding block insert is fixedly mounted on the left side of the sliding seat. According to the injection mold with the twisted teeth on the sliding block, after the mold is opened, a hydraulic motor is started to work to drive a transmission shaft to rotate, and the transmission shaft is in threaded connection with a tooth sleeve when rotating, so that the sliding seat and the sliding block insert are driven to move towards the right mold opening direction, and meanwhile, the transmission shaft drives a first gear to rotate and is meshed with a second gear when the first gear rotates; the core pulling device is simple and safe to operate, capable of effectively preventing the risk of mold collision, compact in structure and small in occupied space, and solves the problems of the risk of mold collision and inconvenience in use in the using process in the background art.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold with a slider and twisted teeth. Background Art

[0002] During the injection mold product molding process, for all products with screw threads on the upper side, a screw thread core must be placed in the molding process for screw thread molding. The existing technology is to manually place the mold screw thread core into the dynamic model cavity. After the product injection molding is completed, the product and the screw thread core are manually taken out, and then the screw thread core is manually screwed out from the product by manually twisting the threads.

[0003] This method has the following disadvantages: 1. If the screw core is not placed in the correct position, it may easily cause damage to the mold, and there is a hidden danger to the safety of the operation; 2. Two or more screw cores are required to replace and use alternately for molding, and can only be produced semi-automatically by manual operation, with the characteristics of long molding cycle and high production cost; 3. Manual operation to twist the screw core out of the product is time-consuming and labor-intensive, and it is also easy to damage the product, resulting in a high rate of quality defects.

[0004] For example, an automatic thread-twisting device for an injection mold disclosed in announcement number CN109719905A utilizes the mold to open and close, and the rack installed on the front template drives the gear, which in turn drives the connecting rod and the screw core to rotate, so that the screw core is screwed in and out along the shape of the screw thread. During molding, the screw thread core is screwed in along the shape of the screw thread, so that the screw thread can be formed on the upper side of the molded product. After the product is molded, the screw thread core is first driven by the gear to be screwed out along the shape of the screw thread, and then the screw thread core is separated from the product by the elastic force of the spring. At the same time, the slider also moves backward synchronously, and finally a mechanical automatic thread-retracting effect is achieved, which can realize the fully automated production of products with screw threads on the side of the mold, greatly improving production efficiency, and has the advantages of safer structure and higher quality yield.

[0005] However, this device has the risk of collision with the mold during use, which is inconvenient to use.

[0006] For this reason, we urgently need to provide a kind of slider with twisted teeth injection mold. Utility Model Content

[0007] The purpose of the utility model is to provide an injection mold for a slider with twisted teeth, so as to solve the problems of the risk of mold collision and inconvenience in use proposed in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection mold with a slider and twisted teeth, comprising a mounting seat, a hydraulic motor is fixedly installed on the right side of the mounting seat, a transmission shaft is fixedly installed on the output end of the hydraulic motor, a slide is slidably connected inside the mounting seat, a toothed sleeve is fixedly installed inside the slide, a slider insert is fixedly installed on the left side of the slide, pressure blocks are fixedly installed on the front and back sides of the slide, a gear 1 is fixedly installed on the left outer surface of the transmission shaft, bearing 1 is fixedly installed on the outer surface of the transmission shaft on the left and right sides of gear 1, the slider insert is rotatably connected to the inner tooth insert, gear 2 is fixedly installed on the outer surface of the inner tooth insert, bearing 2 is fixedly installed on the outer surface of the inner tooth insert on the left and right sides of gear 2, a limiting block is fixedly installed on the right end of the slide, an adjustment block is fixedly installed on the top rear end of the mounting seat, and a travel switch is installed on the top of the adjustment block.

[0009] Preferably, the outer surface of the transmission shaft is provided with an external thread, the sleeve is provided with an external thread, and the sleeve is threadedly connected to the outside of the transmission shaft. The hydraulic motor is started to drive the transmission shaft to rotate, and when the transmission shaft rotates, it is threadedly connected to the sleeve, causing the slide to move right along the mold opening direction.

[0010] Preferably, the gear one and the gear two are meshed with each other, and an external thread is provided on the left end of the inner thread insert. After the mold is opened, the transmission shaft is driven to rotate by starting the hydraulic motor. When the transmission shaft rotates, the inner thread insert rotates synchronously under the meshing of the gear one and the gear two, and the core of the product is pulled.

[0011] Preferably, a wear-resistant block is fixedly mounted on the right side surface of the slide seat to reduce the wear of the slide seat.

[0012] Preferably, the front and rear pressing blocks are in contact with the inner wall of the mounting seat, and the pressing blocks play a role in positioning and guiding the movement of the sliding seat.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The slider has a twisted thread injection mold. After the mold is opened, the hydraulic motor is started to drive the transmission shaft to rotate. When the transmission shaft rotates, it is connected with the threaded sleeve, thereby driving the slide and the slider insert to move in the right direction of mold opening. At the same time, the transmission shaft drives gear 1 to rotate, and when gear 1 rotates, it engages with gear 2, so that gear 2 drives the inner thread insert to rotate synchronously to pull the core of the product. The operation is simple and safe, and can effectively prevent the risk of mold collision. The structure is compact and occupies little space. It solves the risk of mold collision and inconvenience in use during use proposed in the background technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a cross-sectional view of the internal structure of the overall structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the connection between the transmission shaft and the inner thread insert of the present utility model;

[0018] Figure 4 This is a disassembled diagram of the connection between the slide and the product of the utility model.

[0019] In the figure: 1. Mounting seat; 2. Hydraulic motor; 3. Drive shaft; 4. Slide seat; 5. Threaded sleeve; 6. Slider insert; 7. Pressure block; 8. Gear 1; 9. Bearing 1; 10. Internal threaded insert; 11. Gear 2; 12. Bearing 2; 13. Limit block; 14. Adjustment block; 15. Travel switch; 16. Wear-resistant block. 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-Figure 4 , the utility model provides a technical solution:

[0022] Example 1:

[0023] A slider with twisted teeth injection mold, including a mounting seat 1, a hydraulic motor 2 is fixedly installed on the right side of the mounting seat 1, a transmission shaft 3 is fixedly installed on the output end of the hydraulic motor 2, the outer surface of the transmission shaft 3 is provided with an external thread, a sleeve 5 is provided with an external thread, and the sleeve 5 is threadedly connected to the outside of the transmission shaft 3, and the hydraulic motor 2 is started to drive the transmission shaft 3 to rotate, and when the transmission shaft 3 rotates, it is threadedly connected with the sleeve 5, so that the slide 4 moves to the right along the mold opening direction, and the mounting seat 1 is slidably connected with the slide 4, and the sleeve 5 is fixedly installed on the inside of the slide 4. A wear-resistant block 16 is fixedly installed on the right surface of the slide 4, and the wear of the slide 4 is reduced by the wear-resistant block 16. A slider insert 6 is fixedly installed on the left side of the slide 4, and pressure blocks 7 are fixedly installed on the front and rear sides of the slide 4. The two pressure blocks 7 are in contact with the inner wall of the mounting seat 1, and the pressure blocks 7 play a positioning and guiding role in the movement of the slide 4. A gear 8 is fixedly installed on the left outer surface of the transmission shaft 3, and the outer surface of the transmission shaft 3 is located on the left and right sides of the gear 8. The side is fixedly installed with bearing 19, and the slider insert 6 is internally connected to the inner thread insert 10 for core pulling on the inner side of the product through the inner thread insert 10. Gear 2 11 is fixedly installed on the outer surface of the inner thread insert 10, and gear 1 8 and gear 2 11 are meshed with each other. An external thread is provided on the left end of the inner thread insert 10. After the mold is opened, the transmission shaft 3 is driven to rotate by starting the hydraulic motor 2. When the transmission shaft 3 rotates, the inner thread insert 10 rotates synchronously under the meshing of gear 1 8 and gear 2 11 to pull the core of the product. The outer surface of the inner thread insert 10 is located on the left and right sides of gear 2 11 and bearing 2 12 is fixedly installed. Gear 1 8, gear 2 11 and inner thread insert 10 are supported by bearing 1 9 and bearing 2 12. A limit block 13 is fixedly installed on the right end of the slide 4 to limit the stroke of the slide 4. An adjustment block 14 is fixedly installed on the top rear end of the mounting seat 1 to adjust the stroke position. A travel switch 15 is installed on the top of the adjustment block 14 to limit the stroke of the slide 4.

[0024] During use, after the mold is opened, the hydraulic motor 2 is started to drive the transmission shaft 3 to rotate. When the transmission shaft 3 rotates, it is threadedly connected with the sleeve 5, thereby driving the slide 4 and the slider insert 6 to move in the right direction of mold opening. At the same time, the transmission shaft 3 drives gear 1 8 to rotate. When gear 1 8 rotates, it engages with gear 2 11, so that gear 2 11 drives the inner thread insert 10 to rotate synchronously to pull the core of the product. The operation is simple and safe, and can effectively prevent the risk of mold collision. When entering the core, start the hydraulic motor 2 to drive the transmission shaft 3 to rotate. When the transmission shaft 3 rotates, it drives the slide 4 to move to the left. When the limit block 13 contacts the left travel switch 15, the inner thread insert 10 moves into the product to complete the core entry.

[0025] 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 "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising 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. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A slider with twisted teeth injection mold, comprising a mounting seat (1), characterized in that: A hydraulic motor (2) is fixedly mounted on the right side of the mounting seat (1), a transmission shaft (3) is fixedly mounted on the output end of the hydraulic motor (2), a slide seat (4) is slidably connected inside the mounting seat (1), a toothed sleeve (5) is fixedly mounted inside the slide seat (4), a slider insert (6) is fixedly mounted on the left side of the slide seat (4), and pressure blocks (7) are fixedly mounted on the front and rear sides of the slide seat (4), a gear 1 (8) is fixedly mounted on the outer surface of the left side of the transmission shaft (3), and the outer surface of the transmission shaft (3) is located at the gear 1 (8) ) Bearing 1 (9) is fixedly installed on the left and right sides of the slider insert (6), the slider insert (6) is internally rotatably connected to the inner thread insert (10), the outer surface of the inner thread insert (10) is fixedly installed with gear 2 (11), the outer surface of the inner thread insert (10) is located on the left and right sides of gear 2 (11) and bearing 2 (12) is fixedly installed, the right end of the slide seat (4) is fixedly installed with a limit block (13), the top rear end of the mounting seat (1) is fixedly installed with an adjustment block (14), and the top of the adjustment block (14) is installed with a travel switch (15).

2. The slider with twisted teeth injection mold according to claim 1, characterized in that: The outer surface of the transmission shaft (3) is provided with an external thread, the threaded sleeve (5) is provided with an external thread, and the threaded sleeve (5) is threadedly connected to the outer side of the transmission shaft (3).

3. The slider with twisted teeth injection mold according to claim 1, characterized in that: The gear one (8) and the gear two (11) are meshed with each other, and the left end of the inner tooth insert (10) is provided with an external thread after the mold is opened.

4. The slider with twisted teeth injection mold according to claim 1, characterized in that: A wear-resistant block (16) is fixedly mounted on the right side surface of the slide seat (4).

5. The slider with twisted teeth injection mold according to claim 1, characterized in that: The front and rear pressing blocks (7) are fitted with the inner wall of the mounting seat (1).

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