Blank blanking tool

Abstract

The utility model discloses a blank blanking tool which comprises a pair of knife edges (2) arranged on a blank inner die core (1) and a pair of knife heads (4) arranged on a blank outer die sleeve (3), and a blow molding cavity is formed between the blank inner die core (1) and the blank outer die sleeve (3). And the tool bits (4) and the tool edges (2) are in one-to-one correspondence and can be matched with each other to divide the blow molding cavity into two independent parts. The blank blanking tool can prevent the single side of the blank from wrapping the middle die, reduces the diameter of the blanking port of the blank, saves the total weight of the blank, and controls the production and manufacturing cost.

Description

Technical Field

[0001] The utility model relates to the technical field of oil tank production and processing, in particular to a blank blanking tool. Background Art

[0002] At present, in the existing production process of built-in zero-emission fuel tanks, the blanks are C-shaped blanks to meet the production requirements of bonding support rods, wave-breaking plates and built-in valve components inside the fuel tank. Due to the limitations of the production process, the blanks need to be wrapped on one side of the middle mold to meet the production requirements. However, when using a large-diameter blank discharge port tooling, the total weight of the blank is relatively heavy, resulting in a large amount of waste material, thereby increasing production costs. Utility Model Content

[0003] The utility model aims to provide a blank blanking tool, which can avoid the blank from wrapping the middle mold on one side, reduce the blank blank blanking opening diameter tool, save the total weight of the blank, and control the production cost.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a blank blanking tool, which includes a pair of cutting edges arranged on the inner mold core of the blank and a pair of cutting heads arranged on the outer mold sleeve of the blank, a blow molding cavity is formed between the inner mold core of the blank and the outer mold sleeve of the blank, the cutting heads correspond one-to-one with the cutting edges and are arranged to cooperate with each other to divide the blow molding cavity into two independent parts.

[0005] Preferably, the knife edge is located at the outer edge of the inner mold core of the blank.

[0006] Preferably, a pair of the cutting edges are symmetrically arranged along the diameter of the inner mold core of the blank.

[0007] Preferably, the cutter head is located at the inner edge of the inner mold core of the blank.

[0008] Preferably, the inner edge of the inner mold core of the blank is recessed inward to form a cutter head installation groove, and the cutter head is detachably installed in the cutter head installation groove.

[0009] Preferably, the cutter head is mounted in the cutter head mounting groove by a plurality of bolts.

[0010] Preferably, the plurality of bolts are arranged to simultaneously fix the cutter head from at least two directions.

[0011] Preferably, a through hole is provided at the center of the inner mold core of the blank.

[0012] Preferably, a step is formed on the periphery of the through hole.

[0013] Preferably, a plurality of mounting holes are provided on the step, the inner mold core of the blank and the outer mold sleeve of the blank.

[0014] The existing blank feeding device has only one fixed cutter, and the blank becomes C-shaped at the discharge port. According to the above technical solution, the utility model adds another fixed cutter to the blank feeding device for cutting, so that the blank becomes a two-piece shape, and the blank does not need to be wrapped with a middle mold on one side. In this way, the diameter of the blank feeding port can be reduced, thereby saving the total weight of the blank, and thus greatly reducing the production cost.

[0015] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation to the present invention. In the accompanying drawings:

[0017] Figure 1 The utility model is a structural schematic diagram of a blank blanking tooling in use state.

[0018] Description of Reference Numerals

[0019] 1- Inner mold core of blank 2- Knife edge

[0020] 3-Outer mold sleeve of blank 4-Cutter head

[0021] 5-cutter head mounting slot 6-bolt

[0022] 7-Through hole 8-Step

[0023] 9-Mounting holes DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0025] In the present invention, unless otherwise stated, directional words such as "inside" and "outside" contained in a term merely represent the orientation of the term in normal use, or are common names understood by those skilled in the art, and should not be regarded as limitations on the term.

[0026] See also Figure 1The utility model provides a blank blanking tool, which includes a pair of cutting edges 2 arranged on a blank inner mold core 1 and a pair of cutting heads 4 arranged on a blank outer mold sleeve 3. A blow molding cavity is formed between the blank inner mold core 1 and the blank outer mold sleeve 3. The cutting heads 4 correspond to the cutting edges 2 one by one and are arranged to cooperate with each other to divide the blow molding cavity into two independent parts.

[0027] The existing blank feeding device has only one fixed cutter, and the blank becomes C-shaped at the discharge port. Through the above technical solution, a fixed cutter is added to the blank feeding device for cutting, and the blank becomes a two-piece shape, and the blank does not need to be wrapped with an intermediate mold on one side. In this way, the diameter of the blank discharge port can be reduced, thereby saving the total weight of the blank, and thus greatly reducing the production cost.

[0028] In this embodiment, in order to optimize the position of the cutting edge 2 for ease of machining and installation, preferably, the cutting edge 2 is located at the outer edge of the inner mold core 1 of the blank.

[0029] Furthermore, it is preferred that a pair of the cutting edges 2 are symmetrically arranged along the diameter of the blank inner mold core 1 .

[0030] Likewise, the cutter head 4 is preferably located at the inner edge of the inner mold core 1 of the blank.

[0031] Different blanks have different shapes, and the shapes of their ends are also different. In order to be able to produce blanks with different end surface shapes on the same blank mold, preferably, the inner edge of the blank inner mold core 1 is recessed inward to form a cutter head installation groove 5, and the cutter head 4 is detachably installed in the cutter head installation groove 5. In this way, the cutter head 4 installed in the cutter head installation groove 5 can be replaced according to the needs of specific use, and the cutter heads 4 of different shapes can cooperate with the blade 2 to form end surfaces of different shapes.

[0032] The above-mentioned detachable installation method can be any common connection method in the art that can achieve quick installation and disassembly. However, from the perspective of easy operation and cost control, it is preferred that the cutter head 4 is installed in the cutter head installation groove 5 by means of multiple bolts 6.

[0033] When using multiple bolts 6 to install and fix the cutter head 4, in order to constrain the cutter head 4 from at least two directions, ensure its stability during the molding process, and avoid the occurrence of defective products, preferably, the multiple bolts 6 are configured to simultaneously fix the cutter head 4 from at least two directions.

[0034] In addition, in this embodiment, in order to facilitate installation and save installation space for other components, a through hole 7 is preferably opened at the center of the blank inner mold core 1.

[0035] Likewise, preferably, a step 8 is formed on the periphery of the through hole 7 .

[0036] In order to improve the stability of the blank inner mold core 1 and the blank outer mold sleeve 3 after installation and ensure the structural stability after blow molding, preferably, the step 8, the blank inner mold core 1 and the blank outer mold sleeve 3 are all provided with a plurality of installation holes 9. In this way, the blank inner mold core 1 and the blank outer mold sleeve 3 can be more closely contacted through multiple installation and fixing, and the blow molding success rate in the internal cavity is higher.

[0037] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0038] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0039] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A blank blanking tool, characterized in that: The blank blanking tooling comprises a pair of cutting edges (2) arranged on the blank inner mold core (1) and a pair of cutting heads (4) arranged on the blank outer mold sleeve (3), a blow molding cavity is formed between the blank inner mold core (1) and the blank outer mold sleeve (3), and the cutting heads (4) correspond one-to-one with the cutting edges (2) and are arranged to cooperate with each other to divide the blow molding cavity into two independent parts.

2. The blank blanking tool according to claim 1, characterized in that: The knife edge (2) is located at the outer edge of the inner mold core (1) of the blank.

3. The blank blanking tool according to claim 2, characterized in that: A pair of knife edges (2) are symmetrically arranged along the diameter of the inner mold core (1) of the blank.

4. The blank blanking tool according to claim 1, characterized in that: The cutter head (4) is located at the inner edge of the inner mold core (1) of the blank.

5. The blank blanking tool according to claim 4, characterized in that: The inner edge of the inner mold core (1) of the blank is recessed inward to form a cutter head installation groove (5), and the cutter head (4) is detachably installed in the cutter head installation groove (5).

6. The blank blanking tool according to claim 5, characterized in that: The cutter head (4) is installed in the cutter head installation groove (5) via a plurality of bolts (6).

7. The blank blanking tool according to claim 6, characterized in that: The plurality of bolts (6) are arranged to simultaneously fix the cutter head (4) from at least two directions.

8. The blank blanking tool according to claim 1, characterized in that: A through hole (7) is provided at the center of the inner mold core (1) of the blank.

9. The blank blanking tool according to claim 8, characterized in that: A step (8) is formed on the periphery of the through hole (7).

10. The blank blanking tool according to claim 9, characterized in that: The step (8), the blank inner mold core (1) and the blank outer mold sleeve (3) are all provided with a plurality of mounting holes (9).

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