A mold assembly for positioning a guide post to prevent wear

Abstract

The utility model provides a positioning guide pillar anti -wear's mould assembly relates to guide pillar guide bush assembly technical field, including base, the top fixed connection of base has lower mould, the both ends fixed connection of base has fixed plate, the top fixed connection of fixed plate has limit stop, the top fixed connection of limit stop has guide pillar, the outside wall of guide pillar is equipped with the rolling contact groove symmetrically, the rolling contact groove is inserted and is installed with guide bush piece, the surface rotation is connected with the ball of guide bush piece, this positioning guide pillar anti -wear's mould assembly adds lubricating oil to oil storage groove, and lubricating oil drops into the rolling contact groove through the oil leakage hole, when guide bush moves on the guide pillar, drives the ball to rotate in the guide bush piece, the ball in the rolling contact groove contacts lubricating oil, can reduce the contact area between guide bush and guide pillar, reduces the friction, reduces the abrasion situation, improves the wear resistance of guide bush, increases the life.

Description

Technical Field

[0001] This utility model relates to a mold assembly for preventing wear on positioning guide pillars, specifically a mold assembly for preventing wear on positioning guide pillars, belonging to the technical field of guide pillar and guide sleeve assemblies. Background Technology

[0002] A mold refers to a set of molds and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. In short, a mold is a tool used to create shaped objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly achieves the processing of the object's shape by changing the physical state of the material being molded. Guide pillars and guide bushings are used to guide the moving mold plate, facilitating the sealing of the mold before injection molding production.

[0003] Chinese patent publication number CN219188372U discloses a "guide post and guide sleeve assembly for precision molds," comprising a base, a guide sleeve fixedly connected to the upper surface of the base, a guide post slidably connected inside the guide sleeve, and a fixing plate fixedly connected to the end of the guide post away from the guide sleeve. A bolt is threaded into the fixing plate. This precision mold guide post and guide sleeve assembly, through the installation of a first spring, a movable plate, and a second spring, allows the lower surface of the guide post to fit against the lower surface of the movable plate when the guide post extends into the guide sleeve. This allows the movable plate to compress the first spring, and one side of the movable plate to move upwards to pull the second spring. When the guide post separates from the guide sleeve, the second spring, no longer pulled by the movable plate, rebounds and pulls the movable plate downwards. The side of the movable plate connected to the first spring can move upwards, allowing the movable plate to lift the guide post upwards. This enables rapid separation of the guide post and guide sleeve, allowing for quick demolding of the molded object.

[0004] This patent addresses the issue that existing stamping dies have a guide post and guide sleeve mechanism between the upper and lower dies, which plays a positioning and guiding role when the die moves up and down, making the stamping process more precise. However, during long-term operation, the friction between the metals will cause wear on the guide post and guide sleeve equipment, reducing the processing accuracy.

[0005] Therefore, a mold assembly with wear-resistant positioning guide pillars is proposed here. Utility Model Content

[0006] This invention proposes a mold assembly for preventing wear on positioning guide pillars, in order to solve the problem in the prior art where friction between metals during long-term operation causes wear on guide pillar and guide sleeve equipment, reducing processing accuracy.

[0007] This utility model is achieved through the following technical solution: a mold assembly for anti-wear positioning guide post, including a base, a lower mold fixedly connected to the top of the base, fixed plates fixedly connected to both ends of the base, a limit plate fixedly connected to the top of the fixed plate, a guide post fixedly connected to the top of the limit plate, rolling contact grooves symmetrically provided on the outer side wall of the guide post, a guide sleeve block inserted into the rolling contact groove, and a ball bearing rotatably connected to the surface of the guide sleeve block.

[0008] Furthermore, the outer wall of the guide post is symmetrically provided with strip grooves, and a slider is slidably connected inside the strip groove. A telescopic spring is connected between the bottom of the slider and the bottom of the inner side of the strip groove.

[0009] Furthermore, a matching guide sleeve is fitted around the guide post, and the inner wall of the guide sleeve is fixedly connected to the slider.

[0010] Furthermore, a top plate is fixedly connected to the upper end of the guide post, a cylinder is fixedly connected to the top of the top plate, the output end of the cylinder is fixedly connected to the upper mold through the top plate, and the two sides of the upper mold are fixedly connected to the guide sleeve through connecting rods.

[0011] Furthermore, a limiting ring is fixedly connected to the top of the guide post, and an oil storage groove is provided at the upper edge of the limiting ring.

[0012] Furthermore, the bottom of the oil storage tank is provided with a number of oil leakage holes arranged in an array, and the oil leakage holes are located directly above the rolling contact groove.

[0013] Furthermore, the top of the limiting plate is provided with an oil receiving groove, which is located at the bottom of the rolling contact groove.

[0014] This utility model provides a mold assembly with wear-resistant positioning guide pillars, which has the following beneficial effects: 1. The mold assembly for preventing wear of the positioning guide post is made by fitting a guide sleeve and setting a ball inside the guide sleeve. When the guide sleeve moves on the guide post, it can contact the side surface of the ball and drive the ball to rotate inside the guide sleeve block. This reduces the contact area between the guide sleeve and the guide post, reduces friction, reduces wear, improves the wear resistance of the guide sleeve, and increases its service life.

[0015] 2. The mold assembly for preventing wear of the positioning guide post is lubricated by adding lubricating oil to the oil reservoir. The lubricating oil drips into the rolling contact groove through the oil leakage hole. When the guide sleeve moves on the outside of the guide post, the balls in the rolling contact groove come into contact with the lubricating oil, thereby achieving lubrication and reducing the friction between the guide post and the guide sleeve. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the guide post and guide sleeve structure from perspective 1 of this utility model; Figure 3 This is a schematic diagram of the guide post and guide sleeve structure from perspective 2 of this utility model; Figure 4 This is a schematic diagram of the guide sleeve block structure of this utility model; Figure 5 This is a schematic diagram of the limiting plate structure of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 100, base; 110, lower mold; 120, fixing plate; 130, limiting plate; 131, oil receiving groove; 140, guide post; 150, rolling contact groove; 160, guide sleeve block; 161, ball bearing; 170, strip groove; 171, slider; 172, telescopic spring; 180, guide sleeve; 200, Top plate; 210, Cylinder; 220, Upper mold; 230, Limiting ring; 240, Oil reservoir; 250, Oil leakage hole. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0019] Please see Figures 1-5This utility model provides a mold assembly for wear-resistant positioning guide pillars, including a base 100. A lower mold 110 is fixedly connected to the top of the base 100. Fixed plates 120 are fixedly connected to both ends of the base 100. A limit plate 130 is fixedly connected to the top of the fixed plate 120. A guide pillar 140 is fixedly connected to the top of the limit plate 130. Rolling contact grooves 150 are symmetrically provided on the outer side wall of the guide pillar 140. A guide sleeve block 160 is inserted into the rolling contact groove 150. A ball bearing 161 is rotatably connected to the surface of the guide sleeve block 160. A strip groove 170 is symmetrically provided on the outer side wall of the guide pillar 140. A slider 171 is slidably connected inside the strip groove 170. The bottom of the slider 171 is connected to the strip groove. A telescopic spring 172 is connected between the inner bottom of the 170 and the guide post 140. A matching guide sleeve 180 is sleeved on the outside of the guide post 140. The inner wall of the guide sleeve 180 is fixedly connected to the slider 171. An oil receiving groove 131 is provided on the top of the limiting plate 130. The oil receiving groove 131 is located at the bottom of the rolling contact groove 150. By sleeved with the guide sleeve 180 and set with a ball 161 inside the guide sleeve 180, when the guide sleeve 180 moves on the guide post 140, it can contact the side surface of the ball 161 and drive the ball 161 to rotate inside the guide sleeve block 160. This reduces the contact area between the guide sleeve 180 and the guide post 140, reduces friction, reduces wear, improves the wear resistance of the guide sleeve 180, and increases its service life.

[0020] In summary, the friction between the guide post and the guide sleeve changes from a surface-to-line contact to a line contact, greatly reducing the degree of wear.

[0021] Please refer to this carefully. Figures 1-5 A top plate 200 is fixedly connected to the upper end of the guide post 140. A cylinder 210 is fixedly connected to the top of the top plate 200. The output end of the cylinder 210 passes through the top plate 200 and is fixedly connected to the upper mold 220. The two sides of the upper mold 220 are fixedly connected to the guide sleeve 180 through connecting rods. A limit ring 230 is fixedly connected to the top of the guide post 140. An oil storage groove 240 is provided at the upper edge of the limit ring 230. Several oil leakage holes 250 arranged in an array are provided at the bottom of the oil storage groove 240. The oil drain hole 250 is located directly above the rolling contact groove 150. By adding lubricating oil to the oil storage tank 240, the lubricating oil drips into the rolling contact groove 150 through the oil drain hole 250. The cylinder 210 is activated to drive the upper mold 220 to move downward to squeeze the material in the lower mold 110. The upper mold 220 drives the guide sleeve 180 to slide outside the guide post 140, thereby achieving lubrication of the guide post 140 and the guide sleeve 180 and reducing the friction between the guide post 140 and the guide sleeve 180.

[0022] In summary, the contact between the ball bearings and the lubricating oil achieves a lubrication effect, thereby reducing the friction between the guide post and the guide sleeve.

[0023] In use, when the guide sleeve 180 moves up and down outside the guide post 140, lubricating oil is first added to the oil reservoir 240. The lubricating oil drips into the rolling contact groove 150 through the oil drain hole 250. When the guide sleeve 180 moves outside the guide post 140, the rolling balls 161 in the rolling contact groove 150 come into contact with the lubricating oil, thereby achieving lubrication and reducing the friction between the guide post 140 and the guide sleeve 180. By fitting the guide sleeve 180 and setting the rolling balls 161 inside the guide sleeve 180, when the guide sleeve 180 moves on the guide post 140, it can contact the rolling balls 161. The side surface contact causes the ball bearing 161 to rotate inside the guide sleeve block 160, which reduces the contact area between the guide sleeve 180 and the guide post 140, reduces friction, reduces wear, improves the wear resistance of the guide sleeve 180, and increases its service life. The telescopic spring 172 set in the strip groove 170 reduces the impact force when the guide sleeve 180 moves downward, preventing the guide sleeve 180 from being worn. By inserting the guide sleeve block 160 on the outer wall of the guide post, the problem of not having to replace the entire guide sleeve 180 when a small area is damaged, which is costly, is solved.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mold assembly with wear-resistant positioning guide pillars, characterized in that: Includes a base (100), a lower mold (110) is fixedly connected to the top of the base (100), a fixing plate (120) is fixedly connected to both ends of the base (100), a limiting plate (130) is fixedly connected to the top of the fixing plate (120), a guide post (140) is fixedly connected to the top of the limiting plate (130), a rolling contact groove (150) is symmetrically provided on the outer side wall of the guide post (140), a guide sleeve block (160) is inserted into the rolling contact groove (150), and a ball bearing (161) is rotatably connected to the surface of the guide sleeve block (160).

2. The mold assembly for wear-resistant positioning guide pillars according to claim 1, characterized in that: The outer side wall of the guide post (140) is symmetrically provided with a strip groove (170), and a slider (171) is slidably connected inside the strip groove (170). A telescopic spring (172) is connected between the bottom of the slider (171) and the bottom of the inner side of the strip groove (170).

3. The mold assembly for wear-resistant positioning guide pillars according to claim 2, characterized in that: The guide post (140) is fitted with a matching guide sleeve (180), and the inner wall of the guide sleeve (180) is fixedly connected to the slider (171).

4. The mold assembly for wear-resistant positioning guide pillars according to claim 3, characterized in that: The top end of the guide post (140) is fixedly connected to a top plate (200), and the top of the top plate (200) is fixedly connected to a cylinder (210). The output end of the cylinder (210) passes through the top plate (200) and is fixedly connected to an upper mold (220). The two sides of the upper mold (220) are fixedly connected to the guide sleeve (180) through connecting rods.

5. A mold assembly for wear-resistant positioning guide pillars according to claim 4, characterized in that: A limiting ring (230) is fixedly connected to the top of the guide post (140), and an oil storage groove (240) is provided at the upper edge of the limiting ring (230).

6. A mold assembly for wear-resistant positioning guide pillars according to claim 5, characterized in that: The bottom of the oil storage tank (240) is provided with a number of oil leakage holes (250) arranged in an array, and the oil leakage holes (250) are located directly above the rolling contact groove (150).

7. A mold assembly for wear-resistant positioning guide pillars according to claim 6, characterized in that: The top of the limiting plate (130) is provided with an oil receiving groove (131), which is located at the bottom of the rolling contact groove (150).

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