Core pulling rod for milk powder can cover mold and processing device of core pulling rod

Abstract

The utility model provides a core pulling rod for a milk powder can cover mold and a machining device of the core pulling rod, and belongs to the technical field of mold machining. The core-pulling rod for the milk powder can cover mold comprises a square pipe rod body, a rack, a spring baffle and a cylindrical rod head, the machining device of the core-pulling rod for the milk powder can cover mold comprises a bottom plate, a rod body limiting seat and a rod head limiting seat, the rod body limiting seat is fixed to the bottom plate, and a square hole allowing the square pipe rod body to be inserted is transversely formed in the rod body limiting seat; the upper end face of the rod body limiting seat is provided with an opening groove allowing the rack to be embedded in, the bottom plate is provided with a sliding groove formed in the length direction of the bottom plate, the bottom of the rod head limiting seat is provided with a sliding plate, the sliding plate is embedded in the sliding groove and slides along the sliding groove, the two ends of the sliding plate are provided with limiting assemblies for locking the sliding plate in the sliding groove, and the rod head limiting seat is provided with a round hole allowing the cylindrical rod head to be inserted in. And the round hole and the cylindrical rod head have the same diameter. According to the machining device, the rack, the spring baffle and the cylindrical rod head are welded to the square tube rod body at a time, welding point positions are accurate, and installation and adjustment are very convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of mold processing and relates to a core-pulling rod for a milk powder can cover mold and a processing device thereof. Background Art

[0002] Core pullers are used in injection molds to form horizontal or oblique slots in the product. After injection molding, before the product is ejected from the mold, the core puller needs to be withdrawn from the slot to release the product from the mold. In the injection mold for milk powder can lids, the inner side of the lid has an oblique buckle groove that allows for easy connection with the buckle block on the can body. This prevents the lid from separating from the can body and provides a good seal, ensuring long-term preservation of the milk powder. In some injection molds, the core puller is driven by the rotation of a gear. Therefore, a rack is installed on the side of the core puller, and a rod head that matches the slot is set at the front of the core puller. A spring is installed at the rear of the core puller to push the core puller forward and position the rod head precisely. Currently, there is a lack of a specialized tool for processing these core pullers on the market. Utility Model Content

[0003] The purpose of the utility model is to address the above-mentioned problems in the existing technology and propose a core-pulling rod for a milk powder can lid mold and a processing device thereof. Through this processing device, the rack, spring baffle and cylindrical rod head can be accurately welded to the square tube rod body at one time. The welding points are precise and there is no need to transfer the work station.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a core-pulling rod for a milk powder can lid mold, comprising a square tube rod body, a rack, a spring baffle and a cylindrical rod head, characterized in that the rack is welded to one side of the square tube rod body, the spring baffle has a square hole and is sleeved on the outside of the square tube rod body and fixed by welding, the cylindrical rod head comprises a square column, a support part and a cylinder, the square column is vertically connected to one side of the support part, and the cylinder is vertically connected to the other side of the support part, the square column can be inserted into the hole of the square tube rod body and fit with the hole wall, and the support part and the square tube rod body are abutted and welded together.

[0005] Furthermore, the cross section of the support portion is square and the four side surfaces are flush with the four side surfaces of the square tube shaft.

[0006] The utility model also discloses a processing device for a core-pulling rod for a milk powder can lid mold, comprising a base plate, a rod body limiting seat and a rod head limiting seat, characterized in that the rod body limiting seat is fixed on the base plate, a square hole is horizontally opened on the rod body limiting seat for inserting the square tube rod body, an open groove is opened on the upper end face of the rod body limiting seat for embedding the rack, a sliding groove is opened along its length direction on the base plate, a slide is provided at the bottom of the rod head limiting seat, the slide is embedded in the sliding groove and slides along the sliding groove, limiting components are provided at both ends of the slide to lock the slide in the sliding groove, a circular hole is opened on the rod head limiting seat for inserting the cylindrical rod head, and the circular hole has the same diameter as the cylindrical rod head.

[0007] Furthermore, the limiting assembly includes a bolt, a nut and a strip-shaped limiting hole that passes through the bottom of the slide, and bolt holes for the bolts to pass through are opened at both ends of the slide.

[0008] Furthermore, a semicircular welding groove is connected to the bottom of the open groove.

[0009] Unscrewing the nut allows the rod head limit seat to slide along the slide groove. At this time, the rod head limit seat can be adjusted to the required position to facilitate changing the welding position of the rack and spring baffle on the square tube rod body.

[0010] When welding, first, insert the cylindrical body of the cylindrical rod head into the circular hole of the rod head limit seat, so that the support part is in close contact with the side of the rod head limit seat. Adjust the rod head limit seat to the preset position, insert the square tube rod into the square hole of the rod body limit seat, continue to push the square tube forward, rotate the cylindrical rod head so that the square column can be accurately inserted into the front end of the square tube rod until the front end of the square tube rod is in close contact with the support part. Place the rack in the open slot, so that the front end of the rack is in close contact with the inner end of the open slot. Slide the spring baffle from the rear end of the square tube rod, and push the spring baffle until it contacts the side of the rod body limit seat. Start the welding gun and weld at each welding point.

[0011] Compared with the existing technology, the core-pulling rod and processing device for the milk powder can lid mold have the following advantages:

[0012] 1. After the various parts are welded together, the structure is very strong, and different cylindrical rod heads can be replaced and welded to the square tube rod body to form slots of different shapes and depths.

[0013] 2. The processing device is used to position the square tube rod body and the cylindrical rod head, and weld the rack, spring baffle and cylindrical rod head to the square tube rod body at one time. The welding points are precise and the installation and adjustment are very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional diagram of a core-pulling rod for a milk powder can lid mold.

[0015] Figure 2 It is a cross-sectional view of a core-pulling rod for a milk powder can lid mold.

[0016] Figure 3 This is an assembly drawing of a processing device for a core-pulling rod for a milk powder can lid mold.

[0017] Figure 4 It is a three-dimensional diagram of a processing device for a core-pulling rod for a milk powder can lid mold.

[0018] In the figure, 1. square tube rod body; 2. rack; 3. spring baffle; 4. cylindrical rod head; 41. square column; 42. support part; 43. cylinder; 5. bottom plate; 51. slide groove; 6. rod body limit seat; 61. square hole; 62. open groove; 63. welding groove; 7. rod head limit seat; 71. slide plate; 72. round hole; 8. bolt; 9. strip limit hole; 10. welding point. DETAILED DESCRIPTION

[0019] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0020] like Figure 1 、 Figure 2 As shown, the core-pulling rod for the milk powder can lid mold includes a square tube rod body 1, a rack 2, a spring baffle 3 and a cylindrical rod head 4, the rack 2 is welded to one side of the square tube rod body 1, the spring baffle 3 has a square hole 61 and is sleeved on the outside of the square tube rod body 1 and fixed by welding, the cylindrical rod head 4 includes a square column 41, a support part 42 and a cylinder 43, the square column 41 is vertically connected to one side of the support part 42, and the cylinder 43 is vertically connected to the other side of the support part 42, the square column 41 can be inserted into the hole of the square tube rod body 1 and fit with the hole wall, and the support part 42 is in contact with the square tube rod body 1 and welded together.

[0021] The cross section of the support portion 42 is square, and the four side surfaces thereof are flush with the four side surfaces of the square tube shaft 1 .

[0022] like Figure 3 、 Figure 4 As shown, the processing device of the core-pulling rod for the milk powder can lid mold includes a base plate 5, a rod body limiting seat 6 and a rod head limiting seat 7, and is characterized in that the rod body limiting seat 6 is fixed on the base plate 5, and the rod body limiting seat 6 is laterally provided with a square hole 61 for inserting the square tube rod body 1, and the upper end surface of the rod body limiting seat 6 is provided with an open groove 62 for embedding the rack 2, and the bottom of the open groove 62 is also connected to a semicircular welding groove 63.

[0023] A slide groove 51 is provided on the base plate 5 along its length direction, and a slide plate 71 is provided at the bottom of the rod head limiting seat 7. The slide plate 71 is embedded in the slide groove 51 and slides along the slide groove 51. Limiting components are provided at both ends of the slide plate 71 to lock the slide plate 71 in the slide groove 51. A circular hole 72 is provided on the rod head limiting seat 7 for inserting the cylindrical rod head 4, and the circular hole 72 has the same diameter as the cylindrical rod head 4.

[0024] The limiting assembly includes a bolt 8, a nut, and a strip-shaped limiting hole 9 that passes through the bottom of the slide 51. Bolt holes 8 are provided at both ends of the slide 71 for the bolt 8 to pass through. By loosening the nut, the rod head limiting seat 7 can be slid along the slide 51. At this time, the rod head limiting seat 7 can be adjusted to a desired position, making it convenient to change the welding position of the rack 2 and the spring baffle 3 on the square tube rod body 1.

[0025] During welding, first, insert the cylindrical body 43 of the cylindrical rod head 4 into the circular hole 72 of the rod head limiting seat 7, so that the support portion 42 is in close contact with the side of the rod head limiting seat 7, adjust the rod head limiting seat 7 to the preset position, insert the square tube rod body 1 into the square hole 61 of the rod body limiting seat 6, continue to push the square tube forward, rotate the cylindrical rod head 4 so that the square column 41 can be accurately inserted into the front end of the square tube rod body 1, until the front end surface of the square tube rod body 1 is in close contact with the support portion 42, put the rack 2 into the open groove 62, so that the front end of the rack 2 is in close contact with the inner end of the open groove 62, put the spring baffle 3 on the rear end of the square tube rod body 1, and push the spring baffle 3 until it is in contact with the side of the rod body limiting seat 6. Start the welding gun and weld at each welding point 10.

[0026] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A core-pulling rod for a milk powder can lid mold, comprising a square tube rod body, a rack, a spring baffle and a cylindrical rod head, characterized in that: The rack is welded to one side of the square tube rod body, the spring baffle has a square hole and is sleeved on the outside of the square tube rod body and fixed by welding, the cylindrical rod head includes a square column, a support part and a cylinder, the square column is vertically connected to one side of the support part, and the cylinder is vertically connected to the other side of the support part, the square column can be inserted into the hole of the square tube rod body and fit with the hole wall, the support part and the square tube rod body are abutted and welded together.

2. A core-pulling rod for a milk powder can lid mold according to claim 1, characterized in that: The cross section of the supporting portion is square, and the four side surfaces thereof are flush with the four side surfaces of the square tube shaft.

3. A processing device for a core-pulling rod for a milk powder can lid mold according to claim 1 or 2, comprising a bottom plate, a rod body limiting seat and a rod head limiting seat, characterized in that: The rod body limit seat is fixed on the base plate. A square hole is opened horizontally on the rod body limit seat for inserting the square tube rod body. An open groove is opened on the upper end surface of the rod body limit seat for embedding the rack. A slide groove is set along its length direction. The bottom of the rod head limit seat is provided with a slide plate, which is embedded in the slide groove and slides along the slide groove. Limiting components are provided at both ends of the slide plate to lock the slide plate in the slide groove. A round hole is opened on the rod head limit seat for inserting the cylindrical rod head. The round hole has the same diameter as the cylindrical rod head.

4. The processing device for the core-pulling rod for the milk powder can lid mold according to claim 3, characterized in that: The limiting assembly includes a bolt, a nut and a strip-shaped limiting hole that passes through the bottom of the slide, and bolt holes for the bolts to pass through are opened at both ends of the slide.

5. The processing device for the core-pulling rod for the milk powder can lid mold according to claim 3, characterized in that: The bottom of the open groove is also connected with a semicircular welding groove.

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