Pull rod shield of movable template of injection molding machine

Abstract

The utility model relates to a pull rod shield of a movable template of an injection molding machine, which belongs to the technical field of injection molding machines and comprises a sliding pull rod and a movable template slidably mounted on the surface of the sliding pull rod, four connecting through holes matched with the sliding pull rod are formed in one side of the movable template, and a mounting groove is formed in one end of each connecting through hole. According to the pull rod protective cover of the movable template of the injection molding machine, the pull rod protective cover is arranged on one side of the dustproof ring gland through the lengthened screw on the basis of the original dustproof ring gland, and the felt is arranged in the pull rod protective cover, so that residual lubricating oil on the surface of a sliding pull rod is scraped by the felt in the moving process of the movable template; the problems that dust is prevented from entering a copper sleeve through a dustproof ring gland, lubricating oil left on a pull rod in the reciprocating motion process of a movable mold plate cannot be well cleaned, the lubricating oil is accumulated on the pull rod after a long time, finally oil drops are formed and drop on a product or a mold, and the product is polluted are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a pull rod shield of an injection molding motor mold plate. Background Art

[0002] Injection molding machines, also known as injection molding machines or injection machines, are widely used equipment in the industrial field, mainly used to produce plastic products of various shapes and sizes. Its working principle is similar to that of a syringe for injections, which injects thermoplastic or thermosetting plastics into a mold and obtains a finished product after cooling and solidification. The importance of injection molding machines in modern manufacturing is self-evident, and they are widely used in many industries such as automobiles, home appliances, medical care, and packaging.

[0003] The movable platen of the injection molding machine, also called the mobile platen, is part of the mold clamping device of the injection molding machine. It is used in conjunction with the static platen to complete the opening and closing of the mold. The movable platen is usually driven by the mold clamping device to perform linear motion to achieve the closing and opening of the mold. A copper sleeve is provided at the tie rod hole position of the injection molding machine movable platen. The movable platen is assembled together through the copper sleeve and the tie rod. During the production process of the injection molding machine, the movable platen needs to continuously reciprocate along the tie rod. In order to reduce the mutual wear between the copper sleeve and the tie rod, lubricating oil needs to be regularly added between the copper sleeve and the tie rod during the production process to prevent wear.

[0004] Currently, only an O-ring or dust ring is provided on the outside of the pull rod and the copper sleeve to prevent dust from entering the copper sleeve. It is not able to effectively clean the lubricating oil remaining on the pull rod during the reciprocating motion of the movable template. Over time, the lubricating oil will accumulate on the pull rod and eventually form oil droplets, which will drip onto the product or the mold and cause pollution to the product. In view of this, the present application proposes a pull rod guard for an injection molding movable template. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a tie rod guard for an injection molding mobile mold plate, which has the advantages of scraping off the lubricating oil remaining on the surface of the tie rod during the reciprocating motion of the movable mold plate, and solves the problem that dust is prevented from entering the copper sleeve by a dustproof ring cover, but the lubricating oil remaining on the tie rod during the reciprocating motion of the movable mold plate cannot be cleaned well, and the lubricating oil will accumulate on the tie rod over time, eventually forming oil droplets that drip onto the product or the mold, causing pollution to the product.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rod shield for an injection molding mobile template, comprising a sliding rod and a movable template slidably mounted on the surface of the sliding rod, one side of the movable template is provided with four connecting through holes adapted to the sliding rod, one end of the connecting through hole is provided with a mounting groove, a dust ring pressure cover is arranged inside the mounting groove, the dust ring pressure cover is sleeved on the surface of the sliding rod, one side of the dust ring pressure cover is provided with a rod shield sleeved on the surface of the sliding rod, and the inner wall of the rod shield is provided with a felt in contact with the surface of the sliding rod;

[0007] The pull rod shield includes a mounting base plate arranged on one side of the dust ring pressure cover, a semicircular cover is fixedly mounted on one side of the mounting base plate, an annular baffle is fixedly mounted on one side of the semicircular cover, and the inner diameter of the annular baffle is larger than the outer diameter of the sliding pull rod and smaller than the outer diameter of the felt.

[0008] Furthermore, four threaded mounting holes are provided on one side of the mounting groove, and the dust ring gland and the mounting base plate are bolted to the inside of the mounting groove by bolts.

[0009] Furthermore, a butt-jointed side plate is fixedly mounted on one side opposite to the two semicircular covers, and the two butt-jointed side plates are bolted together by bolts and nuts.

[0010] Furthermore, a boss is fixedly mounted on one side of the mounting base plate that contacts the dust ring gland, and oil storage grooves are provided at the bottoms of the two upper mounting grooves.

[0011] Furthermore, a joint is fixedly installed on one side of the movable template, an oil inlet hole is opened at the bottom of the oil storage tank, and one end of the joint is connected to the oil inlet hole.

[0012] Furthermore, an oil guide pipe is fixedly installed at the bottom end of the joint, and the bottom end of the oil guide pipe extends to the bottom of the dynamic template.

[0013] Furthermore, an oil outlet pipe is fixedly installed on the top of the movable template, and the top end of the oil outlet pipe extends to the bottom of the two mounting grooves below.

[0014] Compared with the prior art, the utility model provides a tie rod shield for an injection molding motorized template, which has the following beneficial effects:

[0015] 1. The rod shield of the injection molding dynamic template is installed on one side of the dust ring gland by lengthening the screws on the basis of the original dust ring gland installation, and the felt is installed inside the rod shield. When the dynamic template is moving, the lubricating oil remaining on the surface of the sliding rod is scraped off by the felt, which solves the problem of preventing dust from entering the copper sleeve by the dust ring gland, but cannot effectively clean the lubricating oil remaining on the rod during the reciprocating motion of the dynamic template. Over time, the lubricating oil will accumulate on the rod and eventually form oil droplets, which will drip on the product or mold and cause pollution to the product.

[0016] 2. The tie rod guard of the injection molding motorized template is provided with a boss on one side of the mounting base so that a gap is left between the tie rod guard and the dust ring gland. The scraped lubricating oil flows into the oil storage tank through the gap, and the excess lubricating oil is led out to the oil receiving pot through the oil guide pipe and the oil outlet pipe to avoid the accumulation and overflow of the lubricating oil and contamination of the product.

[0017] 3. The tie rod guard of the injection molding dynamic template docks the semicircular cover through the docking side plate, so that when installing the tie rod guard, it is not necessary to penetrate from one end of the sliding rod. The screws for installing the dust ring cover can be directly unscrewed, and then the two parts of the tie rod guard are buckled on the sliding rod, and then the installation base plate and the dust ring cover are installed on the dynamic template together through the lengthened screws. The installation is very convenient and there is no need to disassemble other parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a side sectional view of the movable template of the utility model;

[0020] Figure 3 This is a schematic diagram of the installation of the pull rod guard of the utility model;

[0021] Figure 4 It is a three-dimensional schematic diagram of the pull rod guard of the utility model.

[0022] In the figure: 1. sliding rod; 101. connecting through hole; 102. mounting groove; 103. mounting threaded hole; 2. moving template; 3. dust ring pressure cover; 4. rod guard; 41. mounting base plate; 411. boss; 42. semicircular cover; 421. docking side plate; 43. annular baffle; 5. felt; 6. oil storage tank; 7. joint; 8. oil inlet hole; 9. oil inlet pipe; 10. oil outlet pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0024] Example 1: Please refer to Figures 1 to 4 A rod shield for an injection molding mobile template includes a sliding rod 1 and a movable template 2 slidably mounted on the surface of the sliding rod 1, one side of the movable template 2 is provided with four connecting through holes 101 adapted to the sliding rod 1, one end of the connecting through hole 101 is provided with a mounting groove 102, a dust ring pressure cover 3 is arranged inside the mounting groove 102, the dust ring pressure cover 3 is sleeved on the surface of the sliding rod 1, one side of the dust ring pressure cover 3 is provided with a rod shield 4 sleeved on the surface of the sliding rod 1, and the inner wall of the rod shield 4 is provided with a felt 5 in contact with the surface of the sliding rod 1.

[0025] The rod shield 4 includes a mounting base plate 41 disposed on one side of the dust ring gland 3, a semicircular cover 42 is fixedly mounted on one side of the mounting base plate 41, and an annular baffle 43 is fixedly mounted on one side of the semicircular cover 42, and the inner diameter of the annular baffle 43 is larger than the outer diameter of the sliding rod 1 and smaller than the outer diameter of the felt 5. When the movable plate 2 is moved by the felt 5, the lubricating oil remaining on the surface of the sliding rod 1 is scraped off to prevent the lubricating oil from accumulating on the surface of the sliding rod 1 and finally dripping onto the product to contaminate the product.

[0026] At the same time, four threaded mounting holes 103 are provided on one side of the mounting groove 102, and the dust ring gland 3 and the mounting base plate 41 are bolted to the inside of the mounting groove 102. When installing the tie rod shield 4, the four bolts for installing the dust ring gland 3 are removed, the tie rod shield 4 is placed on one side of the dust ring gland 3, and then the tie rod shield 4 and the dust ring gland 3 are installed in the mounting groove 102 together.

[0027] The two semicircular covers 42 are fixedly mounted with a butt-jointed side plate 421 on opposite sides thereof, and the two butt-jointed side plates 421 are bolted together by bolts and nuts. The rod shield 4 is connected to the two halves by the butt-jointed side plate 421, and it is not necessary to insert the sliding rod 1 from one end during installation, so that other components do not need to be disassembled during installation.

[0028] Embodiment 2: Based on the embodiment 1, a boss 411 is fixedly installed on the side of the mounting base 41 that contacts the dust ring gland 3, and an oil storage tank 6 is provided at the bottom of the two upper mounting grooves 102. A joint 7 is fixedly installed on one side of the moving plate 2, and an oil inlet hole 8 is provided at the bottom of the oil storage tank 6, and one end of the joint 7 is connected to the oil inlet hole 8.

[0029] The bottom end of the joint 7 is fixedly mounted with an oil inlet pipe 9, and the bottom end of the oil inlet pipe 9 extends to the bottom of the dynamic template 2. The lubricating oil scraped off the surface of the two upper sliding rods 1 flows into the oil storage tank 6 through the gap between the mounting base plate 41 and the dust ring gland 3, flows into the joint 7 through the oil inlet hole 8, and then flows out to the external oil receiving pot through the oil inlet pipe 9.

[0030] Secondly, an oil outlet pipe 10 is fixedly installed on the top of the moving plate 2, and the top of the oil outlet pipe 10 extends to the bottom of the two lower mounting grooves 102. The lubricating oil scraped off the surface of the two lower sliding rods 1 flows into the mounting groove 102 through the gap between the mounting bottom plate 41 and the dust ring gland 3, and directly flows out to the external oil receiving pot through the oil outlet pipe 10, preventing the oil from accumulating too much and leaking out to contaminate the product.

[0031] When this embodiment is in use, the screws of the dust ring cover 3 are removed, and then the dust ring cover 3 and the pull rod cover 4 are installed on the moving template 2 together. When the moving template 2 moves, the lubricating oil remaining on the surface of the sliding pull rod 1 is scraped off by the felt 5 to prevent the lubricating oil from dripping onto the product and causing contamination to the product.

[0032] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the article.

[0033] 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. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] 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. A rod shield for an injection molding mobile mold plate, comprising a sliding rod (1) and a movable mold plate (2) slidably mounted on the surface of the sliding rod (1), characterized in that: One side of the movable template (2) is provided with four connecting through holes (101) adapted to the sliding rod (1), one end of the connecting through hole (101) is provided with a mounting groove (102), a dust ring pressure cover (3) is provided inside the mounting groove (102), the dust ring pressure cover (3) is sleeved on the surface of the sliding rod (1), one side of the dust ring pressure cover (3) is provided with a rod shield (4) sleeved on the surface of the sliding rod (1), and the inner wall of the rod shield (4) is provided with a felt (5) in contact with the surface of the sliding rod (1); The pull rod shield (4) comprises a mounting base plate (41) arranged on one side of the dust ring gland (3), a semicircular cover (42) is fixedly mounted on one side of the mounting base plate (41), an annular baffle (43) is fixedly mounted on one side of the semicircular cover (42), and an inner diameter of the annular baffle (43) is larger than the outer diameter of the sliding pull rod (1) and smaller than the outer diameter of the felt (5).

2. The rod guard of the injection molding motorized template according to claim 1, characterized in that: Four mounting threaded holes (103) are provided on one side of the mounting groove (102), and the dust ring gland (3) and the mounting base plate (41) are bolted to the inside of the mounting groove (102) by means of bolts.

3. The rod guard of the injection molding motorized template according to claim 1, characterized in that: A butt-jointed side plate (421) is fixedly mounted on one side opposite to the two semicircular covers (42), and the two butt-jointed side plates (421) are bolted together by means of bolts and nuts.

4. The tie rod shield of the injection molding motorized template according to claim 1, characterized in that: A boss (411) is fixedly mounted on the side of the mounting base plate (41) that contacts the dust ring gland (3), and an oil storage groove (6) is provided at the bottom of the two upper mounting grooves (102).

5. The rod guard of the injection molding motorized template according to claim 4, characterized in that: A joint (7) is fixedly mounted on one side of the movable platen (2), an oil inlet hole (8) is provided at the bottom of the oil storage tank (6), and one end of the joint (7) is connected to the oil inlet hole (8).

6. The rod guard of the injection molding motorized template according to claim 5, characterized in that: An oil introduction pipe (9) is fixedly mounted on the bottom end of the joint (7), and the bottom end of the oil introduction pipe (9) extends to the bottom of the moving template (2).

7. The rod guard of the injection molding motorized template according to claim 1, characterized in that: An oil outlet pipe (10) is fixedly mounted on the top of the movable template (2), and the top end of the oil outlet pipe (10) extends to the bottom of the two mounting grooves (102) below.

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