A step-by-step die for cutting and stretching flat caster bracket

Abstract

The present invention relates to the technical field of processing a flat caster bracket, and discloses a step-by-step die for cutting and stretching a flat caster bracket, comprising a base, two hydraulic rods are fixedly installed on both left and right sides of the top of the base, the tops of the four hydraulic rods are fixedly connected to a top plate, and a fixed die is placed on the top of the base and on the side opposite to the hydraulic rods on the left and right sides. The step-by-step die for cutting and stretching a flat caster bracket, by providing a positioning plate, when the fixed die needs to be replaced, the handle can be turned to move the screw to the left and right sides until the positioning plate is separated from the fixed die, and then the fixed die of different specifications can be replaced, and the fixed die is placed between the two positioning plates, and the handle is turned so that the two positioning plates are in contact with the fixed die, and the top surface is fixed and stabilized. This structure achieves the effect of convenient mold replacement, can save the cost of purchasing molds of different specifications, and is more convenient for users to use.

Description

Technical Field

[0001] The invention relates to the technical field of flat caster bracket processing, in particular to a flat caster bracket cutting and stretching stepping die. Background Art

[0002] Casters is a general term, including movable casters, fixed casters and movable casters with brakes. Movable casters are what we call universal wheels, and their structure allows 360-degree rotation; fixed casters are also called fixed casters, which have no rotating structure and cannot turn. Usually the two types of casters are used in combination. For example, the structure of a trolley is two fixed wheels in the front and two universal wheels in the back near the pushing armrest.

[0003] The existing flat caster bracket cutting and stretching step-by-step dies on the market have the advantages of simple structure and high precision. However, most of the existing flat caster bracket cutting and stretching step-by-step dies cannot replace the molds. When processing flat caster brackets of different specifications, different molds need to be used, which is very inconvenient, and molds of different specifications need to be purchased. Therefore, a flat caster bracket cutting and stretching step-by-step die is proposed to solve the above-mentioned problems. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the present invention provides a step-by-step die for cutting and stretching a flat caster bracket, which has the advantages of convenient mold replacement, etc., and solves the problem that most of the existing step-by-step dies for cutting and stretching a flat caster bracket cannot replace the mold, and different molds need to be used when processing flat caster brackets of different specifications, which is very inconvenient, and the problem that molds of different specifications need to be purchased.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose of convenient mold replacement, the present invention provides the following technical solutions: a flat caster bracket cutting and stretching stepping mold, comprising a base, two hydraulic rods are fixedly installed on the left and right sides of the top of the base, the tops of the four hydraulic rods are fixedly connected to the top plate, a fixed mold is placed on the top of the base and on the side opposite to the hydraulic rods on the left and right sides, and sliders that penetrate and extend to the top of the base are movably installed inside the base and on the left and right sides of the fixed mold, and positioning plates that contact the fixed mold are fixedly installed on the tops of the sliders on the left and right sides of the top of the base, and fixed plates are fixedly installed on the opposite sides of the sliders on the left and right sides of the top of the base, and screw rods that penetrate and extend to the opposite sides of the fixed plates on the left and right sides are movably installed on the opposite sides of the fixed plates on the left and right sides, the screw rods are threadedly connected, and handles are fixedly installed on the opposite sides of the screw rods on the left and right sides, and movable blocks fixedly connected to the positioning plates on the same side are movably installed on the opposite sides of the screw rods on the left and right sides, a movable mold is fixedly installed on the bottom of the top plate, and a push rod is fixedly installed on the top of the top plate.

[0008] Preferably, the movable mold is located above the fixed mold, and mold grooves are provided inside the movable mold and on the top of the fixed mold.

[0009] Preferably, a threaded hole matched with the screw rod is provided inside the fixing plate, and a bearing movably connected with the screw rod is fixedly installed inside the movable block.

[0010] Preferably, both left and right sides of the top of the base are provided with slide grooves adapted to the slider, and both the slide groove and the slider are T-shaped, and the top width of the slide groove and the slider is smaller than the bottom width.

[0011] Preferably, an anti-skid layer is provided on the outer side of the handle, and the anti-skid layer is a rubber layer, and anti-skid bumps are provided on the outer side of the anti-skid layer.

[0012] Preferably, limiting blocks are fixedly installed on opposite sides of the positioning plates on the left and right sides, and limiting grooves similar to the limiting blocks are opened on the left and right sides of the fixed mold.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the present invention provides a step-by-step die for cutting and stretching a flat caster bracket, which has the following beneficial effects:

[0015] The flat caster bracket cutting and stretching stepping die is provided with a positioning plate. When the fixed die needs to be replaced, the handle can be turned to move the screw rod to the left and right sides until the positioning plate is separated from the fixed die. At this time, the fixed die of different specifications can be replaced, and the fixed die is placed between the two positioning plates. The handle is turned so that the two positioning plates are in contact with the fixed die, and the top surface is fixed and stabilized. This structure achieves the effect of convenient mold replacement, can save the cost of purchasing molds of different specifications, and is more conducive to user use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle.

[0018] In the figure: 1 base, 2 hydraulic rod, 3 ejector plate, 4 fixed mold, 5 slider, 6 positioning plate, 7 fixed plate, 8 screw rod, 9 handle, 10 movable block, 11 movable mold, 12 ejector rod. DETAILED DESCRIPTION

[0019] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-2A flat caster bracket cutting and stretching stepping die comprises a base 1, two hydraulic rods 2 are fixedly installed on the left and right sides of the top of the base 1, the tops of the four hydraulic rods 2 are fixedly connected to the top plate 3, a fixed die 4 is placed on the top of the base 1 and on the side opposite to the hydraulic rods 2 on the left and right sides, and a slider 5 penetrating and extending to the top of the base 1 is movably installed inside the base 1 and on the left and right sides of the fixed die 4, and a slide groove matching the slide groove 5 is opened on the left and right sides of the top of the base 1, and the slide groove and the slide groove 5 are T-shaped, and the slide groove and the slide groove 5 is that its top width is smaller than its bottom width, the top of the left and right sliders 5 are fixedly installed with positioning plates 6 in contact with the fixed mold 4, the opposite sides of the positioning plates 6 on the left and right sides are fixedly installed with limit blocks, and the left and right sides of the fixed mold 4 are provided with limit grooves similar to the limit blocks, the left and right sides of the sliders 5 on the top of the base 1 are fixedly installed with fixed plates 7 on the opposite sides, and the opposite sides of the fixed plates 7 on the left and right sides are movably installed with screw rods 8 that penetrate and extend to the opposite sides of the fixed plates 7 on the left and right sides, and the screw rods 8 are threadedly connected to the fixed plates 7, and the left and right sides are fixedly installed with fixed plates 7 on the opposite sides. A handle 9 is fixedly installed on the opposite side of the screw rod 8, and an anti-skid layer is arranged on the outside of the handle 9, and the anti-skid layer is a rubber layer, and an anti-skid convex block is arranged on the outside of the anti-skid layer. A movable block 10 fixedly connected to the positioning plate 6 on the same side is movably installed on the opposite side of the screw rod 8 on the left and right sides, and a threaded hole adapted to the screw rod 8 is opened inside the fixed plate 7, and a bearing movably connected to the screw rod 8 is fixedly installed inside the movable block 10. A movable mold 11 is fixedly installed on the bottom of the top plate 3, and the movable mold 11 is located above the fixed mold 4, and the interior of the movable mold 11 and the fixed mold 4 are connected. A mold groove is opened on the top, and a push rod 12 is fixedly installed on the top of the top plate 3. By setting the positioning plate 6, when the fixed mold 4 needs to be replaced, the handle 9 can be turned to move the screw 8 to the left and right sides until the positioning plate 6 is separated from the fixed mold 4. At this time, the fixed mold 4 of different specifications can be replaced, and the fixed mold 4 is placed between the two positioning plates 6. The handle 9 is turned so that the two positioning plates 6 are in contact with the fixed mold 4, and the top surface 4 is fixed and stable. This structure achieves the effect of convenient mold replacement, can save the cost of purchasing molds of different specifications, and is more conducive to user use.

[0021] To summarize, the flat caster bracket cutting and stretching stepping mold, by setting the positioning plate 6, when the fixed mold 4 needs to be replaced, the handle 9 can be turned to make the screw 8 move to the left and right sides until the positioning plate 6 is separated from the fixed mold 4. At this time, the fixed mold 4 of different specifications can be replaced, and the fixed mold 4 is placed between the two positioning plates 6, and the handle 9 is turned so that the two positioning plates 6 are in contact with the fixed mold 4, and the top surface 4 is fixed and stable. This structure achieves the effect of convenient mold replacement, which can save the cost of purchasing molds of different specifications, is more conducive to user use, and solves the problem that most of the existing flat caster bracket cutting and stretching stepping molds cannot replace the mold. When processing flat caster brackets of different specifications, different molds need to be used, which is very inconvenient, and molds of different specifications need to be purchased.

[0022] It should be noted that the terms "include", "comprises" or any other variations 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, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0023] 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 step-by-step die for cutting and stretching a flat caster bracket, comprising a base (1), characterized in that: Two hydraulic rods (2) are fixedly installed on both left and right sides of the top of the base (1), and the tops of the four hydraulic rods (2) are fixedly connected to the top plate (3). A fixed mold (4) is placed on the top of the base (1) and on the side opposite to the hydraulic rods (2) on the left and right sides. Slide blocks (5) penetrating through and extending to the top of the base (1) are movably installed inside the base (1) and on both left and right sides of the fixed mold (4). Positioning plates (6) in contact with the fixed mold (4) are fixedly installed on the tops of the slide blocks (5) on the left and right sides. The slide blocks (5) on the top of the base (1) are opposite to each other. A fixing plate (7) is fixedly installed on one side of the left and right sides, a screw rod (8) penetrating and extending to the opposite side of the fixing plates (7) on the left and right sides is movably installed on the opposite side of the fixing plates (7) on the left and right sides, the screw rod (8) is threadedly connected to the fixing plates (7), a handle (9) is fixedly installed on the opposite side of the screw rods (8) on the left and right sides, a movable block (10) fixedly connected to the positioning plate (6) on the same side is movably installed on the opposite side of the screw rods (8) on the left and right sides, a movable mold (11) is fixedly installed on the bottom of the top plate (3), and a top rod (12) is fixedly installed on the top of the top plate (3); The movable mold (11) is located above the fixed mold (4), and mold grooves are provided inside the movable mold (11) and on the top of the fixed mold (4); The fixing plate (7) has a threaded hole adapted to the screw rod (8) formed inside, and a bearing movably connected to the screw rod (8) is fixedly installed inside the movable block (10); The left and right sides of the top of the base (1) are both provided with slide grooves adapted to the slider (5), and the slide groove and the slider (5) are both T-shaped, and the top width of the slide groove and the slider (5) is smaller than the bottom width; The outer side of the handle (9) is provided with an anti-skid layer, and the anti-skid layer is a rubber layer, and the outer side of the anti-skid layer is provided with anti-skid protrusions.

2. According to claim 1, a step-by-step die for cutting and stretching a flat caster bracket, characterized in that: Limit blocks are fixedly installed on opposite sides of the positioning plates (6) on the left and right sides, and limit grooves similar to the limit blocks are opened on the left and right sides of the fixed mold (4).

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