Upper die for PVC pipe fitting semi-hot runner die

Abstract

The utility model discloses an upper die for a PVC pipe fitting semi-hot runner die. The upper die comprises an upper die body. The mounting groove is formed in the middle of the upper mold; the clamping grooves are formed in the two sides of the mounting groove; the mounting holes are symmetrically formed in the upper mold in the mounting groove area; the inserting grooves are symmetrically formed in the left side and the right side of the upper mold, and the inserting grooves are located in the mounting groove area; the heat dissipation groove is formed in the mounting groove; the hydraulic column groove is formed in the upper mold; and the heating assembly is connected to the upper mold. Through the arrangement of the slot and the heating assembly, the slot is matched with the heating assembly for use, so that the guiding effect is achieved, the installation efficiency of the heating assembly and the slot is improved, and the problems that the template needs to be aligned with the installation groove firstly when the heating assembly is installed due to the fact that the upper die is not provided with a guiding structure; and then a connecting column penetrates through a mounting hole for connection, so that the problem of long mounting process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot runner molds, and more specifically to an upper mold for a semi-hot runner mold of a PVC pipe fitting. Background Art

[0002] Rigid polyvinyl chloride pipe (PVC pipe) is made of polyvinyl chloride resin, stabilizer, lubricant, etc., and then extruded by hot pressing. In the production process of polyvinyl chloride materials, the most commonly used is the hot runner mold. The hot runner system is a component in the injection mold that guides the injection liquid ejected by the injection molding machine to the casting molding cavity in the injection mold. The main component in the hot runner system is the manifold, which is also called the hot runner manifold. It is the central component of the hot runner system. It distributes the plastic melt transmitted from the main channel nozzle to each injection point nozzle through the runner. The manifold can make the mold cavity evenly filled, the plastic flow balanced, and the system heat balanced.

[0003] For example, the authorization announcement number "CN216782499U" discloses a semi-hot runner mold for PVC pipe fittings, including a heating template, an upper template, and a lower template. The heating template is connected to the upper template. The upper template includes a first mounting cavity. A heat dissipation cavity is provided on one side of the first mounting cavity, which can improve the heat dissipation efficiency after the PVC pipe fittings are formed.

[0004] Although the PVC pipe semi-hot runner mold has many beneficial effects, in actual use, the upper mold does not have a guide structure. When installing the upper mold, it is necessary to first align the mold with the installation groove, and then pass the connecting column through the installation hole for connection, which results in a long installation process. In view of this, we propose an upper mold for a PVC pipe semi-hot runner mold. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The utility model aims to provide an upper mold for a semi-hot runner mold for PVC pipe fittings to solve the problems raised in the above-mentioned background technology.

[0007] 2. Technical solution

[0008] An upper mold for a semi-hot runner mold for a PVC pipe fitting comprises an upper mold; a mounting groove, which is arranged in the middle of the upper mold; a clamping groove, which is arranged on both sides of the mounting groove; and mounting holes, which are symmetrically arranged on the upper mold in the region of the mounting groove.

[0009] Preferably, it also includes a slot; the slot is symmetrically opened on the left and right sides of the upper mold, and the slot is located in the installation slot area; a heat dissipation slot is opened on the installation slot; a hydraulic column slot is opened on the upper mold; a heating component is connected to the upper mold; wherein a detachable structure is formed between the heating component and the upper mold.

[0010] Preferably, the slot is a conical structure that is larger on the outside and smaller on the inside, and there are four slots, which are symmetrically arranged on the left and right sides of the upper mold, wherein the slot is connected to the mounting slot.

[0011] Preferably, the heating assembly includes a template having a rectangular structure; a clamping plate symmetrically arranged on the left and right sides of the template; and a guide column arranged on the template close to the side of the slot; wherein the guide column corresponds to the position of the slot, and the guide column has the same structure as the slot.

[0012] Preferably, the template is plug-connected with the slot through a guide column, and the template forms a clamping structure with the upper mold through a clamping plate.

[0013] 3. Beneficial effects

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] 1. The utility model achieves a guiding effect by setting a slot and a heating component, and uses the slot and the heating component in combination to improve the installation efficiency of the heating component and the slot, and solves the problem that the upper mold does not have a guiding structure. When installing the heating component, it is necessary to first align the template with the installation slot, and then pass the connecting column through the installation hole for connection, which leads to a long installation process.

[0016] 2. The utility model provides a guide column, and the template can be quickly plugged into the slot by using the guide column. When the two are plugged in, the template is engaged with the mounting slot and the card slot with the card plates on both sides, which can limit the template and increase the overall stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the heating component structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the upper mold of the utility model;

[0021] Explanation of the numbers in the figure: 1. Upper mold; 2. Mounting slot; 3. Card slot; 4. Mounting hole; 5. Slot; 6. Heat dissipation slot; 7. Hydraulic column slot; 8. Heating assembly;

[0022] 801, template; 802, pallet; 803, guide column. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0027] An upper mold for a semi-hot runner mold for PVC pipe fittings includes an upper mold 1; a mounting groove 2, which is provided in the middle of the upper mold 1; a clamping groove 3, which is provided on both sides of the mounting groove 2; and a mounting hole 4, which is symmetrically provided on the upper mold 1 in the region of the mounting groove 2. It also includes a slot 5; the slot 5 is symmetrically provided on the left and right sides of the upper mold 1, and the slot 5 is located in the region of the mounting groove 2; a heat dissipation groove 6, which is provided on the mounting groove 2; a hydraulic column groove 7, which is provided on the upper mold 1; a heating component 8, which is connected to the upper mold 1; wherein a detachable structure is formed between the heating component 8 and the upper mold 1. The utility model achieves a guiding effect by setting the slot 5 and the heating component 8, and utilizes the slot 5 and the heating component 8 in combination to improve the installation efficiency of the heating component 8 and the slot 5, and solves the problem that the upper mold does not have a guiding structure. When installing the heating component 8, it is necessary to first align the template 801 with the mounting groove 2, and then connect the connecting column through the mounting hole 4, which results in a long installation process.

[0028] Specifically, the slot 5 is a conical structure with a large outside and a small inside, and there are four slots 5, which are symmetrically arranged on the left and right sides of the upper mold 1, wherein the slot 5 is connected to the mounting slot 2. The utility model uses the slot 5 with a large outside and a small inside conical structure to guide the heating component 8, so that it can be quickly plugged in and engaged.

[0029] In addition, the heating assembly 8 includes a template 801, which is a rectangular parallelepiped structure; a card plate 802, which is symmetrically arranged on the left and right sides of the template 801; and a guide column 803, which is arranged on the template 801 near the slot 5; wherein the guide column 803 corresponds to the position of the slot 5, and the guide column 803 has the same structure as the slot 5. The template 801 is plugged and connected to the slot 5 through the guide column 803, and the template 801 forms a snap-fit ​​structure with the upper mold 1 through the card plate 802. Through the setting of the guide column 803, the template 801 of the utility model can be quickly plugged into the slot 5 by using the guide column 803. When the two are plugged, the template 801 can be snapped into the installation slot 2 and the card slot 3 with the card plates 802 on both sides, which can limit the template 801, thereby increasing the overall stability.

[0030] Working principle: The template 801 is connected to the slot 5 using the guide column 803. When the two are connected, the template 801 and the card plates 802 on both sides are engaged with the installation slot 2 and the card slot 3. Then the template 801 is installed on the upper mold 1, and then the upper mold 1 is assembled with other parts to form the mold.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An upper mold for a semi-hot runner mold for PVC pipe fittings, characterized in that: include: Upper mold (1); A mounting groove (2) is provided in the middle of the upper mold (1); Card slots (3) are provided on both sides of the installation slot (2); The mounting holes (4) are symmetrically arranged on the upper mold (1) in the region of the mounting groove (2).

2. The upper mold for a semi-hot runner mold for PVC pipe fittings according to claim 1, characterized in that: Also includes a slot (5); The slots (5) are symmetrically arranged on the left and right sides of the upper mold (1), and the slots (5) are located in the region of the mounting groove (2); A heat dissipation groove (6) is provided on the mounting groove (2); A hydraulic column groove (7) is provided on the upper mold (1); A heating component (8) connected to the upper mold (1); Wherein, the heating component (8) and the upper mold (1) form a detachable structure.

3. The upper mold for a semi-hot runner mold for PVC pipe fittings according to claim 2, characterized in that: The slot (5) is a conical structure with a larger outer portion and a smaller inner portion. Four slots (5) are provided. The four slots (5) are symmetrically arranged on the left and right sides of the upper mold (1), wherein the slots (5) are connected to the mounting groove (2).

4. The upper mold for a semi-hot runner mold for PVC pipe fittings according to claim 3, characterized in that: The heating component (8) comprises: The template (801) is a rectangular parallelepiped structure; The card plate (802) is symmetrically arranged on the left and right sides of the template (801); A guide post (803) is arranged on the template (801) at a side close to the slot (5); The guide column (803) corresponds to the position of the slot (5), and the guide column (803) and the slot (5) have the same structure.

5. The upper mold for a semi-hot runner mold for PVC pipe fittings according to claim 4, characterized in that: The template (801) is plug-connected with the slot (5) via a guide column (803), and the template (801) forms a snap-fit ​​structure with the upper mold (1) via a clamping plate (802).

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