Integrated outer die structure of debugging-free extrusion die

Abstract

The utility model relates to the technical field of pipe fitting production equipment, and particularly discloses an integrated outer die structure of a debugging-free extrusion die, which comprises a mounting part, a transition part and a limiting part, the mounting part, the transition part and the limiting part are integrally formed into an outer die structure, and the frustum-shaped transition part is arranged between the mounting part and the limiting part. Internal mold mounting holes are formed in the mounting part, the transition part and the limiting part, and the outline of each internal mold mounting hole is matched with the structure of an internal mold; the integrated outer die structure of the debugging-free extrusion die adopts an integrally-formed structural form, and the outer contour is a three-section structure matched with the inner die structure, so that the problem that a two-section structure connected by a bolt is not tight in sealing is avoided, the internal temperature is stable, the production quality of pipe fittings is stable, and the production efficiency is improved. The inner mold structure is directly limited and installed in the outer mold structure, an adjusting jackscrew does not need to be arranged outside, use of assemblies is greatly reduced, adjusting and maintaining work is simpler and more efficient, and production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe fitting production equipment, in particular to an integrated outer mold structure of an adjustment-free extrusion mold. Background Art

[0002] The extrusion die for pipe fittings is the core component in the manufacturing process of plastic or rubber pipe fittings. It is used to extrude heated plastic or rubber raw materials into a tube or other shape through a die of a specific shape. The following is some key information about the extrusion die for pipe fittings:

[0003] 1. Mold design: The design of the extrusion mold needs to be customized according to the size, shape and material properties of the final product. The mold usually consists of two main parts: the inlet (also called the feed port) and the outlet (also called the die lip). The inlet part guides the molten plastic into the mold, while the die lip part determines the final shape and size of the pipe.

[0004] 2. Material selection: The mold is usually made of high-hardness, corrosion-resistant steel, such as high-speed steel (HSS), chrome steel, etc., to withstand high temperature and high pressure working environment and ensure a long service life.

[0005] 3. Temperature control: The mold needs to maintain a certain temperature during operation to ensure the fluidity and molding quality of the plastic or rubber during the extrusion process. This is usually achieved through a built-in heating and cooling system, such as water circulation cooling or electric heating belts.

[0006] 4. Extrusion process: During the extrusion process, the heated plastic or rubber raw material is pushed to the mold entrance through the screw of the extruder, and after being squeezed and cooled by the mold, it finally forms the desired pipe shape. Accurate control of extrusion speed, pressure and temperature is crucial to product quality.

[0007] 5. Cooling system: The extruded pipe needs to be cooled immediately to fix the shape, which is usually achieved through a water tank or air cooling device. The cooling speed and method will also affect the physical properties of the pipe.

[0008] 6. Subsequent processing: The extruded pipe may need to go through subsequent processes such as pulling, cutting, surface treatment, etc. to meet the specifications of the final product.

[0009] 7. Mold maintenance: Regular cleaning and maintenance are very important to maintain the accuracy and extend the service life of the mold. Mold maintenance includes cleaning residues, checking wear and lubricating moving parts.

[0010] Existing extrusion dies for pipe fitting production include an outer mold and an inner mold structure. The outer mold structure generally adopts a split structure. The cylindrical pipe fittings of the mounting part and the limiting part are connected by bolts in a two-stage structure, and the connection is sealed by a sealant. The connection between the two forms a transition part, and a plurality of top screws are arranged on the periphery of the mounting part and the limiting part to support the inner mold structure to adjust the outlet position of the inner mold structure. The existing split outer mold structure has many components, low adjustment accuracy, and a complicated maintenance process. In addition, air leakage and heat dissipation are prone to occur at the connection and the top screws, resulting in poor temperature control and unstable pipe production quality. Therefore, it is urgent to design an integrated outer mold structure of an extrusion mold that does not require debugging to solve the problem that the existing split outer mold structure has many components that are difficult to maintain and the unstable pipe production quality. Utility Model Content

[0011] In view of the problems existing in the prior art, the utility model aims to provide an integrated outer mold structure of an adjustment-free extrusion mold.

[0012] The technical solution adopted by the utility model to solve its technical problems is: an integrated outer mold structure of an adjustment-free extrusion mold, including a mounting portion, a transition portion and a limiting portion, wherein the mounting portion, the transition portion and the limiting portion are integrally formed into an outer mold structure, a frustum-shaped transition portion is provided between the mounting portion and the limiting portion, and an inner mold mounting hole is provided inside the mounting portion, the transition portion and the limiting portion, and the contour of the inner mold mounting hole is adapted to the inner mold structure.

[0013] Specifically, the mounting portion is a hollow cylindrical structure, an inner mold mounting thread is provided inside the mounting portion, and the inner thread of the inner mold mounting thread is threadedly connected to the outer thread outside the inner mold structure.

[0014] Specifically, the mounting portion is provided with an inner mold stop countersunk hole, which is located on the outside of the inner mold mounting thread. The diameter of the inner mold stop countersunk hole is larger than the diameter of the inner mold mounting thread. The inner mold stop countersunk hole blocks and adapts the inner mold structure to sink.

[0015] Specifically, a probe mounting screw hole is provided on one side of the mounting portion, and the internal thread of the probe mounting screw hole is threadedly connected to the external thread of the temperature measuring probe.

[0016] Specifically, a probe insertion hole is provided in the middle of the inner side of the probe mounting screw hole, the probe insertion hole passes through the probe mounting screw hole and the inner mold mounting hole, the detection head of the temperature measuring probe is inserted into the probe insertion hole, and the detection head of the temperature measuring probe contacts the outer wall of the inner mold structure.

[0017] Specifically, the transition portion is a frustum-shaped structure, and the inner mold mounting hole inside the transition portion is a segmented frustum-shaped hole adapted to the inner mold structure.

[0018] Specifically, the limiting portion is a hollow cylindrical structure, and the inner mold mounting hole inside the limiting portion is a cylindrical hole adapted to the inner mold structure.

[0019] The utility model has the following beneficial effects:

[0020] The one-piece outer mold structure of the adjustment-free extrusion die designed by the utility model adopts an one-piece molding structure, and the outer contour is a three-section structure adapted to the inner mold structure, avoiding the problem of poor sealing of the two-section structure connected by bolts, so that the internal temperature is stable and the production quality of pipe fittings is stable. The inner mold structure is directly limited and installed inside the outer mold structure, and there is no need to set an external adjustment screw, which greatly reduces the use of components, makes adjustment and maintenance work simpler and more efficient, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the external structure of the integrated outer mold structure of the debugging-free extrusion mold.

[0022] Figure 2 This is a schematic diagram of the internal structure of the one-piece outer mold structure of the debugging-free extrusion mold Figure 1 .

[0023] Figure 3 This is a schematic diagram of the internal structure of the one-piece outer mold structure of the debugging-free extrusion mold Figure 2 .

[0024] Figure 4 yes Figure 3 Left view of .

[0025] Figure 5 yes Figure 3 Right view of .

[0026] In the figure: 1-installation part; 2-transition part; 3-limiting part; 4-inner mold installation hole; 5-inner mold installation thread; 6-inner mold stop countersunk hole; 7-probe installation screw hole; 8-probe insertion hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely further describe the technical solutions in the embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1-Figure 5 As shown, an integrated outer mold structure of an adjustment-free extrusion mold includes a mounting portion 1, a transition portion 2 and a limiting portion 3. The mounting portion 1, the transition portion 2 and the limiting portion 3 are integrally formed as an outer mold structure. A frustum-shaped transition portion 2 is provided between the mounting portion 1 and the limiting portion 3. An inner mold mounting hole 4 is provided inside the mounting portion 1, the transition portion 2 and the limiting portion 3. The contour of the inner mold mounting hole 4 is adapted to the inner mold structure.

[0029] The mounting portion 1 is a hollow cylindrical structure, and an inner mold mounting thread 5 is provided inside the mounting portion 1 . The inner thread of the inner mold mounting thread 5 is threadedly connected to the outer thread outside the inner mold structure.

[0030] An inner mold stop countersunk hole 6 is provided on the mounting portion 1, and the inner mold stop countersunk hole 6 is located on the outside of the inner mold mounting thread 5. The diameter of the inner mold stop countersunk hole 6 is larger than the diameter of the inner mold mounting thread 5. The inner mold stop countersunk hole 6 blocks and adapts the inner mold structure to sink into, so that the inner mold structure and the outer mold structure are adapted to be installed.

[0031] One side of the mounting portion 1 is provided with a probe mounting screw hole 7, and the internal thread of the probe mounting screw hole 7 is threadedly connected to the external thread of the temperature measuring probe.

[0032] A probe insertion hole 8 is provided in the middle of the inner side of the probe mounting screw hole 7. The probe insertion hole 8 passes through the probe mounting screw hole 7 and the inner mold mounting hole 4. The detection head of the temperature measuring probe is inserted into the probe insertion hole 8, and the detection head of the temperature measuring probe contacts the outer wall of the inner mold structure.

[0033] The transition portion 2 is a frustum-shaped structure, and the inner mold mounting hole 4 inside the transition portion 2 is a segmented frustum-shaped hole adapted to the inner mold structure.

[0034] The limiting portion 3 is a hollow cylindrical structure, and the inner mold mounting hole 4 inside the limiting portion 3 is a cylindrical hole adapted to the inner mold structure.

[0035] The utility model adopts an integrally formed structure, and the external contour is a three-section structure adapted to the inner mold structure, avoiding the problem of poor sealing of the two-section structure connected by bolts, so that the internal temperature is stable and the production quality of pipe fittings is stable. The inner mold structure is directly limited and installed inside the outer mold structure, and there is no need to set an external adjustment screw, which greatly reduces the use of components, makes adjustment and maintenance work simpler and more efficient, and improves production efficiency.

[0036] The present utility model is not limited to the above-mentioned implementation modes, and anyone should be aware of the structural changes made under the inspiration of the present utility model. Any technical solutions that are the same or similar to the present utility model fall within the protection scope of the present utility model.

[0037] The technology, shape and structure parts not described in detail in the present invention are all known technologies.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated outer mold structure of an adjustment-free extrusion mold, characterized in that: It includes a mounting part, a transition part and a limiting part, wherein the mounting part, the transition part and the limiting part are integrally formed as an outer mold structure, a frustum-shaped transition part is between the mounting part and the limiting part, and the inside of the mounting part, the transition part and the limiting part are inner mold mounting holes, and the contour of the inner mold mounting hole is adapted to the inner mold structure.

2. The one-piece outer mold structure of the adjustment-free extrusion mold according to claim 1 is characterized in that: The mounting portion is a hollow cylindrical structure, and an inner mold mounting thread is arranged inside the mounting portion. The inner thread of the inner mold mounting thread is threadedly connected to the outer thread outside the inner mold structure.

3. The one-piece outer mold structure of the adjustment-free extrusion mold according to claim 2 is characterized in that: The mounting portion is provided with an inner mold stop countersunk hole, which is located on the outside of the inner mold mounting thread. The diameter of the inner mold stop countersunk hole is larger than the diameter of the inner mold mounting thread. The inner mold stop countersunk hole blocks and adapts to the sinking of the inner mold structure.

4. The one-piece outer mold structure of the adjustment-free extrusion mold according to claim 1 is characterized in that: One side of the mounting portion is provided with a probe mounting screw hole, and the internal thread of the probe mounting screw hole is threadedly connected to the external thread of the temperature measuring probe.

5. The one-piece outer mold structure of the adjustment-free extrusion mold according to claim 4 is characterized in that: A probe insertion hole is provided in the middle of the inner side of the probe mounting screw hole, the probe insertion hole passes through the probe mounting screw hole and the inner mold mounting hole, the detection head of the temperature measuring probe is inserted into the probe insertion hole, and the detection head of the temperature measuring probe contacts the outer wall of the inner mold structure.

6. The one-piece outer mold structure of the adjustment-free extrusion mold according to claim 1, characterized in that: The transition portion is a frustum-shaped structure, and the inner mold mounting hole inside the transition portion is a segmented frustum-shaped hole adapted to the inner mold structure.

7. The one-piece outer mold structure of the adjustment-free extrusion mold according to claim 1 is characterized in that: The limiting portion is a hollow cylindrical structure, and the inner mold mounting hole inside the limiting portion is a cylindrical hole adapted to the inner mold structure.

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