Guide pillar lubricating structure of injection mold

Abstract

The utility model discloses an injection mold guide pillar lubrication structure which comprises a mounting base, four guide pillar bodies and two oil pumping pipelines, the left side and the right side of the interior of the mounting base are each provided with two L-shaped oil ways distributed up and down, and oil storage grooves are formed in the tops, close to the assembling ends of the guide pillar bodies, of the guide pillar bodies. An oil storage groove is formed in the guide pillar main body, the oil storage groove is distributed in the length direction of the guide pillar main body and is provided with a plurality of annular grooves which are coaxially distributed with the guide pillar main body, an oil inlet cavity is coaxially formed in the assembly end of the guide pillar main body, and a communicating hole communicated with the oil storage groove is formed in the top of the oil inlet cavity. According to the guide column lubricating structure of the injection mold, the guide column structure is improved, the oil storage groove is formed in the top of the assembling end of the guide column body, under the action of the oil pumping pipeline, the multiple annular grooves are matched with the guide sleeve, a lubricant can be guided to the bottom of the guide column body, and the coverage range of the lubricant on the surface of the guide column body is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a lubricating structure for a guide post of an injection mold. Background Art

[0002] Injection molds are tools used to manufacture plastic products through the injection molding process. Injection molding, also known as injection molding, is a molding method that combines injection and molding. This method involves stirring completely molten plastic material through a screw at a certain temperature, injecting it into the mold cavity with high pressure, and obtaining a molded product after cooling and solidification.

[0003] The guide pin lubrication structure of an injection mold is a key part in mold design. Its main purpose is to reduce the friction between the guide pin and the guide sleeve, thereby extending the service life of the mold and improving production efficiency. Current injection molds usually adopt a horizontal opening and closing method. When adding lubricant, it is not convenient to cover the bottom of the guide pin with lubricant. For this reason, the applicant has designed a guide pin lubrication structure for an injection mold to solve the above problem. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a lubricating structure for a guide pin of an injection mold, which solves the problem that the current injection mold usually adopts a horizontal opening and closing method, which makes it inconvenient to cover the bottom of the guide pin with lubricant when adding lubricant.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an injection mold guide post lubrication structure, comprising a mounting seat and four guide post bodies arranged in a rectangular array and vertically assembled on the front of the mounting seat, and two oil pump pipelines respectively assembled on both sides of the mounting seat, wherein the four guide post bodies are divided into two groups distributed on the left and right and are respectively connected to the two oil pump pipelines.

[0006] Two L-shaped oil passages are provided on the left and right sides of the mounting base.

[0007] An oil storage tank is provided at the top of the guide column body near its assembly end. The oil storage tank is distributed along the length direction of the guide column body and is provided with a plurality of annular grooves coaxially distributed with the guide column body. An oil inlet cavity is coaxially provided at the assembly end of the guide column body, and a connecting hole connected to the oil storage tank is provided at the top of the oil inlet cavity.

[0008] Preferably, the pump oil pipeline is composed of two connecting ports respectively encapsulated at two L-shaped oil circuit side ports located on the same side and a three-way pipe assembled between the two connecting ports.

[0009] Preferably, the plurality of annular grooves are evenly distributed at equal distances along the axial direction of the guide column body, and the cross-sections of the plurality of annular grooves are all wedge-shaped groove structures.

[0010] Preferably, it also includes a fixing seat encapsulated at the front port of the L-shaped oil circuit for assembling the guide column body, and a sunken groove is coaxially opened on the fixing seat to accommodate the assembly end of the guide column body, and a protrusion coaxially distributed therewith is provided in the sunken groove, and the outer wall of the protrusion is adapted to the inner wall of the oil inlet cavity.

[0011] The utility model provides a lubricating structure for a guide post of an injection mold. Compared with the prior art, it has the following beneficial effects:

[0012] The injection mold guide pin lubrication structure improves the guide pin structure by opening an oil storage tank at the top of the guide pin main body assembly end. Under the action of the oil pump pipeline, with the help of several annular grooves and in conjunction with the guide sleeve, the lubricant can be diverted to the bottom of the guide pin main body, thereby improving the coverage of the lubricant on the surface of the guide pin main body and ensuring the overall lubrication effect of the guide pin main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a structural diagram of the guide column main body of the utility model;

[0015] Figure 3 This is a schematic diagram of the split structure of the guide column body of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the L-shaped oil circuit of the utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the oil pump pipeline of the utility model;

[0018] In the picture:

[0019] 100, mounting base;

[0020] 110, L-type oil circuit;

[0021] 200, guide column body;

[0022] 210, oil storage tank; 220, annular groove; 230, oil inlet cavity; 240, communicating hole;

[0023] 300, pump oil pipeline;

[0024] 310, connection port; 320, tee pipe;

[0025] 400, fixed seat;

[0026] 410, sinking groove; 420, protrusion. 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] See also Figure 1-5 The utility model provides a technical solution: a guide post lubrication structure for an injection mold, comprising a mounting seat 100 and four guide post bodies 200 distributed in a rectangular array and vertically assembled on the front side of the mounting seat 100, and two oil pump pipelines 300 respectively assembled on both sides of the mounting seat 100. The four guide post bodies 200 are divided into two groups distributed on the left and right and are respectively connected to the two oil pump pipelines 300. Two L-shaped oil passages 110 distributed up and down are provided on the left and right sides inside the mounting seat 100. An oil storage tank 210 is provided on the top of the guide post body 200 near its assembly end. The oil storage tank 210 is distributed along the length direction of the guide post body 200 and is provided with a plurality of annular grooves 220 coaxially distributed with the guide post body 200. An oil inlet cavity 230 is coaxially opened at the assembly end of the guide post body 200, and a connecting hole 240 connected to the oil storage tank 210 is provided at the top of the oil inlet cavity 230.

[0029] Based on the above-mentioned structural setting, the injection mold guide column lubrication structure is composed of a mounting seat 100, four guide column bodies 200 and two oil pumping pipelines 300, wherein the mounting seat 100 provides structural support for the installation of the four guide column bodies 200 and the two oil pumping pipelines 300, and at the same time cooperates with the four L-shaped oil passages 110 to realize the connection of the lubrication path between the oil pumping pipeline 300 and the four guide column bodies 200. Specifically, during the working process, the operator first adjusts the position of the mounting seat 100 with the help of an external hydraulic rod or cylinder so that the oil storage tank 210 on the guide column body 200 is inside the guide sleeve, and then opens the oil pumping pipeline 300. The four guide column bodies 200 are divided into two groups and are respectively connected to the two oil pumping pipelines 300 through the two L-shaped oil passages 110. Taking one oil pumping pipeline 300 as an example, the lubricant is divided into two groups through the oil pumping pipeline 300 with the help of the two L-shaped oil passages 110. The lubricant enters the two oil inlet chambers 230 separately. The lubricant entering the oil inlet chamber 230 enters the oil storage tank 210 through the connecting hole 240. Under the sleeve action of the guide sleeve, the lubricant flows to the bottom of the guide column body 200 through several annular grooves 220, thereby completing the lubricant covering operation on the assembly end surface of the guide column body 200. After closing the oil pump pipeline 300, in conjunction with the reciprocating action of the hydraulic rod or cylinder output end, the lubricant can be covered on the entire guide column body 200 surface. The injection mold guide column lubrication structure improves the guide column structure and opens an oil storage tank 210 at the top of the guide column body 200 assembly end. Under the action of the oil pump pipeline 300, with the help of several annular grooves 220, in conjunction with the guide sleeve, the lubricant can be diverted to the bottom of the guide column body 200, thereby improving the coverage of the lubricant on the surface of the guide column body 200 and ensuring the overall lubrication effect of the guide column body 200.

[0030] Furthermore, the oil pumping line 300 is composed of two connecting ports 310, respectively encapsulated at the side ports of two L-shaped oil passages 110 located on the same side, and a tee pipe 320 installed between the two connecting ports 310. The oil pumping line 300 is used to pump lubricant. The input end of the tee pipe 320 is connected to a lubricant storage container, and the two output ends of the tee pipe 320 are respectively connected to the side ports of the two L-shaped oil passages 110 located on the same side.

[0031] Furthermore, a plurality of annular grooves 220 are evenly spaced along the axial direction of the guide pillar body 200, and each of the annular grooves 220 has a wedge-shaped cross-section. The annular grooves 220 serve as a drainage path for lubricant in the oil reservoir 210 toward the bottom of the guide pillar body 200. The wedge-shaped structure reduces the dispersion of lubricant.

[0032] Furthermore, the mounting base 400 is enclosed at the front end of the L-shaped oil passage 110 for mounting the guide post body 200. The mounting base 400 is coaxially provided with a sunken groove 410 for accommodating the guide post body 200's assembly end. A coaxial projection 420 is provided within the sunken groove 410, with the outer wall of the projection 420 matching the inner wall of the oil inlet chamber 230. The mounting base 400 is used to assemble the guide post body 200 onto the mounting base 100. The combination of the sunken groove 410 and the projection 420 ensures a secure and stable assembly of the mounting base 400 onto the guide post body 200, while also ensuring a tight seal between the oil inlet chamber 230 and the L-shaped oil passage 110.

[0033] 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 apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold guide pin lubrication structure, characterized by: The invention comprises a mounting seat (100), four guide column bodies (200) arranged in a rectangular array and vertically assembled on the front of the mounting seat (100), and two oil pumping pipelines (300) respectively assembled on both sides of the mounting seat (100), wherein the four guide column bodies (200) are divided into two groups arranged on the left and right and are respectively connected to the two oil pumping pipelines (300); Two L-shaped oil passages (110) are provided on the left and right sides of the interior of the mounting seat (100) and are arranged in an upward and downward manner; The guide column body (200) is provided with an oil storage tank (210) near the top of its assembly end. The oil storage tank (210) is distributed along the length direction of the guide column body (200) and is provided with a plurality of annular grooves (220) coaxially distributed with the guide column body (200). The assembly end of the guide column body (200) is coaxially provided with an oil inlet cavity (230), and a connecting hole (240) connected to the oil storage tank (210) is provided at the top of the oil inlet cavity (230).

2. The injection mold guide post lubrication structure according to claim 1, characterized in that: The oil pump pipeline (300) is composed of two connecting ports (310) respectively encapsulated at the side ports of two L-shaped oil circuits (110) located on the same side, and a three-way pipe (320) assembled between the two connecting ports (310).

3. The injection mold guide post lubrication structure according to claim 1, characterized in that: The plurality of annular grooves (220) are evenly distributed at equal distances along the axial direction of the guide column body (200), and the cross sections of the plurality of annular grooves (220) are all wedge-shaped groove structures.

4. The injection mold guide post lubrication structure according to claim 1, characterized in that: The invention also includes a fixing seat (400) encapsulated at the front end of the L-shaped oil circuit (110) for assembling the guide column body (200), wherein a sinking groove (410) for accommodating the assembly end of the guide column body (200) is coaxially opened on the fixing seat (400), and a protrusion (420) coaxially distributed therewith is provided in the sinking groove (410), and the outer wall of the protrusion (420) is adapted to the inner wall of the oil inlet cavity (230).

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