Production tool for automobile door lock stay wire sheath

Abstract

The utility model relates to the technical field of production tools, and discloses an automobile door lock stay wire sheath production tool which comprises a connecting plate, a plurality of sets of outer washing pipes are welded to the bottom end face of the connecting plate in an integrated forming mode, and inner washing pipes are fixedly installed at the positions, corresponding to the centers of the outer washing pipes, of the connecting plate. The connecting plate is further provided with an air inlet penetrating through the connecting plate, the air inlet is communicated with the inner flushing pipe, vent holes penetrating through the inner wall and the outer wall of the inner flushing pipe are evenly formed in the wall face of the inner flushing pipe from top to bottom, and an air blocking plate capable of sliding up and down in the inner flushing pipe is further movably installed in the inner flushing pipe. The diameter of the air blocking plate is the same as the inner diameter of the inner washing pipe. According to the automobile door lock stay wire protection sleeve mold, gas is distributed between the automobile door lock stay wire protection sleeve and the inner washing pipe through the ventilation holes from the inner washing pipe, meanwhile, the automobile door lock stay wire protection sleeve and the push plate are gradually pushed downwards through the sliding grooves, demolding is convenient, the automobile door lock stay wire protection sleeve structure is combined, shaft hole waste and the protection sleeve are demolded respectively, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of production tools, in particular to a production tool for a car door lock cable sheath. Background Art

[0002] The car door lock cable mainly includes the cable and the sheath. During the controlled pulling process, the cable will repeatedly rub against the outer wall, gradually cracking or even breaking. Therefore, it is necessary to install a protective sheath on the cable to effectively prevent the friction between the cable and the outer wall and extend the service life of the cable.

[0003] The existing polyurethane sponge sheath produced by using polyurethane sponge as raw material is usually bonded by utilizing the thermoplasticity of polyurethane sponge to aggregate the two long sides of the pre-cut rectangular strips to form a circular strip. The sheath processed by this bonding method is easy to crack at the bonding point when used.

[0004] Therefore, there is also a polyurethane foaming process that completes the shaping during the foaming process, but the production cost is relatively high.

[0005] After searching, Chinese patent publication No. CN202020179299.2 discloses a production tooling for a seamless automobile door lock wire sheath, including a rectangular compression frame, and an annular outer frame arranged in the compression frame, and an annular inner frame is provided in the annular outer frame; the annular outer frame is arranged in the compression frame in two ways.

[0006] Multiple sheaths can be produced at one time through stamping, which increases service life and reduces production costs. However, during the one-time stamping process, due to the elasticity of the polyurethane sponge and the length of the sheath, it is not easy to detach from the production tooling, affecting production efficiency.

[0007] To this end, we propose a production tooling for a car door lock cable sheath. Utility Model Content

[0008] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a production tool for a car door lock cable sheath.

[0009] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a production tool for a car door lock wire sheath, including a connecting plate, the bottom end surface of the connecting plate is integrally formed with multiple groups of outer punch tubes welded thereon, an inner punch tube is fixedly installed on the connecting plate corresponding to the center of the outer punch tube, an air inlet hole penetrating the connecting plate is also provided on the connecting plate, the air inlet hole is communicated with the inner punch tube, the wall surface of the inner punch tube is evenly provided with air holes penetrating the inner and outer walls of the inner punch tube from top to bottom, an air blocking plate which can slide up and down in the inner punch tube is movably installed in the inner punch tube, and the diameter of the air blocking plate is the same as the inner diameter of the inner punch tube.

[0010] Preferably, a slide groove is provided on the side wall surface of the outer punch tube, and the slide groove is axially opened on the surface of the outer punch tube from the top of the outer punch tube.

[0011] Preferably, a push plate that can slide up and down along the slide groove is movably installed in the slide groove, and a sliding hole that fits with the outer punch tube is opened in the push plate corresponding to the position of each group of outer punch tubes, and a disengagement plate is formed in the sliding hole corresponding to one of the outer punch tubes.

[0012] Preferably, the bottom of the inner punch tube is integrally formed with a cutout, and the cutout is an annular cutting edge.

[0013] Preferably, it further comprises a material frame, which is a rectangular frame with a hollow bottom, and a punching hole is provided at the top of the material frame at a position corresponding to the outer punching tube, and the diameter of the punching hole is the same as the outer diameter of the outer punching tube.

[0014] Preferably, the side wall surface of the material frame is also fixedly mounted with connecting screw holes.

[0015] Beneficial Effects

[0016] The utility model provides a production tool for a car door lock cable sheath, which has the following beneficial effects:

[0017] The connecting plate, the push plate and the material frame are connected to the stamping device, the external air source is connected to the air inlet, and the stamping device is started. First, the material frame cuts and limits the polyurethane sponge material placed in a suitable position to reduce the deformation of the polyurethane sponge during the stamping process. Then the connecting plate stamps the polyurethane sponge. Under the joint action of the outer punch tube and the inner punch tube, the polyurethane sponge is cut into multiple groups of car door lock cable sheaths of the same size at one time. Then the connecting plate is raised, and the outer punch tube and the inner punch tube are lifted at the same time to bring out the cut car cable sheath. At this time, the external air source is started to push out the shaft hole waste inside the inner punch tube, and then the push plate is pressed down. The gas is distributed between the car door lock cable sheath and the inner punch tube through the vent hole in the inner punch tube. At the same time, the opening of the slide groove makes the car door lock cable sheath and the push plate gradually push down, which is convenient for demoulding. One-time stamping and molding, as well as the combination of the car door lock cable sheath structure, the shaft hole waste and the sheath itself are demoulded separately to increase production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment in size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a disassembled diagram of the flushing pipe structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the flushing pipe structure of the utility model.

[0023] Legend:

[0024] 1. Connecting plate; 2. External punching pipe; 3. Air inlet hole; 4. Internal punching pipe; 5. Air vent; 6. Incision; 7. Slide groove; 8. Push plate; 9. Slide hole; 10. Escape plate; 11. Material frame; 12. Punching hole; 13. Connecting screw hole; 14. Air blocking plate. DETAILED DESCRIPTION

[0025] 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.

[0026] Embodiment 1:

[0027] A production tool for a car door lock cable sheath, such as Figure 1-Figure 3As shown, it includes a connecting plate 1, the bottom end surface of the connecting plate 1 is integrally formed with a plurality of groups of outer punching tubes 2 welded thereto, the outer punching tubes 2 are hollow circular tubes with an open lower end, the connecting plate 1 is fixedly installed with an inner punching tube 4 at a position corresponding to the center of the outer punching tube 2, the inner punching tube 4 is a hollow circular tube with an open lower end, the inner punching tube 4 is located inside the outer punching tube 2 and is coaxial with the outer punching tube 2, the connecting plate 1 is also provided with an air inlet 3 that penetrates the connecting plate 1, the air inlet 3 is communicated with the inner punching tube 4, when in use, the connecting plate 1 is installed on a punching machine, an external air source is communicated with the air inlet 3, and then a polyurethane sponge material is placed under the connecting plate 1, the punching machine is started, and the said part of the polyurethane sponge is pressed. The polyurethane sponge is punched and formed into a car door lock wire sheath in one go. After the punching is completed, the connecting plate 1 is lifted. At this time, the car door lock wire sheath is stored between the outer punch tube 2 and the inner punch tube 4. At this time, the external air source is started to ventilate into the air inlet 3 to punch out the polyurethane sponge in the center of the inner punch tube 4, so that there is no excess material in the center of the removed car door lock wire sheath. By changing the inner punch tube 4 with the axial hole of the car wire sheath from a solid column to a hollow tube, the car door lock wire sheath is additionally punched with an axial hole. As the punching approaches the end, the degree of deformation due to extrusion is gradually reduced, and the yield rate of the car wire sheath produced by stamping is higher.

[0028] The outer punching tubes 2 below the connecting plate 1 can be distributed in a dot matrix with equal spacing, or arranged in an equal and staggered manner.

[0029] Furthermore, ventilation holes 5 are evenly opened on the wall surface of the inner punching tube 4 from top to bottom, and the ventilation holes 5 penetrate the inner and outer walls of the inner punching tube 4. In the process of the high-pressure air source punching out the axial hole waste remaining in the inner punching tube 4, the high-pressure air source flows from the ventilation holes 5 to the inner wall of the automobile door lock wire sheath that has been stamped and formed, thereby reducing the friction between the automobile door lock wire sheath and the inner punching tube 4 and facilitating demoulding.

[0030] In order to ensure that the high-pressure air source can still be ejected from the vent hole 5 after the waste material in the axial hole in the inner flushing tube 4 is flushed out, an air blocking plate 14 that can slide up and down in the inner flushing tube 4 is movably installed in the inner flushing tube 4. The diameter of the air blocking plate 14 is the same as the inner diameter of the inner flushing tube 4, so that when the high-pressure air source is ejected, the waste material in the axial hole is completely discharged. After the air blocking plate 14 moves to the bottom of the inner flushing tube 4, the bottom of the inner flushing tube 4 is blocked to prevent the high-pressure air source from being completely discharged from the bottom of the inner flushing tube 4, and can only be sprayed from the vent hole 5 to the equipment door lock pull wire sheath.

[0031] Furthermore, the bottom of the inner punch tube 4 is integrally formed with a cutout 6, which is an annular cutting edge for facilitating cutting of the polyurethane sponge.

[0032] Furthermore, in order to facilitate the overall demolding of the automobile door lock wire sheath, a slide groove 7 is provided on the side wall of the outer punch tube 2. The slide groove 7 is axially opened on the surface of the outer punch tube 2 from the top of the outer punch tube 2, thereby reducing the contact area between the automobile door lock wire sheath and the outer punch tube 2 and reducing the demolding friction.

[0033] Furthermore, a push plate 8 is movably installed in the slide groove 7 and can slide up and down along the slide groove 7. The push plate 8 is provided with a sliding hole 9 that fits with the outer punch tube 2 at the position corresponding to each group of outer punch tubes 2. A release plate 10 is formed in the sliding hole 9 corresponding to an outer punch tube 2. When the push plate 8 slides up and down along the outer punch tube 2, the release plate 10 is used to push the automobile door lock wire sheath to be demolded from the outer punch tube 2.

[0034] In another embodiment, it also includes a material frame 11, which is a rectangular frame with a hollow bottom, and a punching hole 12 is opened at the top of the material frame 11 corresponding to the position of the outer punching tube 2. The diameter of the punching hole 12 is the same as the outer diameter of the outer punching tube 2. Before stamping, the material frame 11 is pressed down to cut and fix a complete polyurethane sponge material, and the outer punching tube 2 passes through the punching hole 12 to punch the polyurethane sponge inside the material frame 11 to reduce stamping deformation.

[0035] The side wall surface of the material frame 11 is also fixedly mounted with connecting screw holes 13 to facilitate fixed connection with the punching machine.

[0036] The working principle of the utility model is as follows: the connecting plate 1, the push plate 8 and the material frame 11 are connected to the stamping device, the external air source is connected to the air inlet 3, and the stamping device is started. First, the material frame 11 cuts and limits the polyurethane sponge material placed in a suitable position to reduce the deformation of the polyurethane sponge during the stamping process, and then the connecting plate 1 stamps the polyurethane sponge. Under the joint action of the outer punch tube 2 and the inner punch tube 4, the polyurethane sponge is cut into multiple groups of automobile door lock wire sheaths of the same size at one time, and then the connecting plate 1 is lifted, and the outer punch tube 2 and the inner punch tube 4 are lifted at the same time to bring out the cut automobile wire sheath. At this time, the external air source is started to push out the axial hole waste inside the inner punch tube 4, and then the push plate 8 is pressed down. The gas passes through the vent 5 from the inner punch tube 4 and is distributed between the automobile door lock wire sheath and the inner punch tube 4. At the same time, the opening of the slide groove 7 causes the automobile door lock wire sheath and the push plate 8 to be gradually pushed down, which is convenient for demoulding. One-time stamping and forming, combined with the automobile door lock cable sheath structure, the shaft hole waste and the sheath itself are demoulded separately to increase production efficiency.

[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A production tool for a car door lock cable sheath, comprising a connecting plate (1), the bottom end surface of the connecting plate (1) being integrally formed with a plurality of groups of outer punching tubes (2) welded thereto, an inner punching tube (4) being fixedly mounted on the connecting plate (1) at a position corresponding to the center of the outer punching tube (2), characterized in that: The connecting plate (1) is also provided with an air inlet hole (3) penetrating the connecting plate (1), the air inlet hole (3) being in communication with the inner flushing tube (4), the wall surface of the inner flushing tube (4) being evenly provided with air vents (5) penetrating the inner and outer walls of the inner flushing tube (4) from top to bottom, and the inner flushing tube (4) is also provided with an air blocking plate (14) movably mounted therein and capable of sliding up and down within the inner flushing tube (4), the diameter of the air blocking plate (14) being the same as the inner diameter of the inner flushing tube (4).

2. The production tooling for the automobile door lock cable sheath according to claim 1 is characterized in that: A slide groove (7) is provided on the side wall surface of the outer punch tube (2), and the slide groove (7) is axially opened on the surface of the outer punch tube (2) from the top of the outer punch tube (2).

3. The production tooling of the automobile door lock cable sheath according to claim 2 is characterized in that: A push plate (8) is movably installed in the slide groove (7) and can slide up and down along the slide groove (7). The push plate (8) is provided with a slide hole (9) corresponding to the position of each group of external punch tubes (2) and is fitted with the external punch tubes (2). A release plate (10) is formed in the slide hole (9) corresponding to one of the external punch tubes (2).

4. The production tooling of the automobile door lock cable sheath according to claim 1 is characterized in that: The bottom of the inner punch tube (4) is integrally formed with a cutout (6), and the cutout (6) is an annular cutting edge.

5. A production tool for a car door lock cable sheath according to any one of claims 1 to 4, characterized in that: It also comprises a material frame (11), which is a rectangular frame with a hollow bottom. A punching hole (12) is provided at the top of the material frame (11) at a position corresponding to the outer punching tube (2), and the diameter of the punching hole (12) is the same as the outer diameter of the outer punching tube (2).

6. The production tooling of the automobile door lock cable sheath according to claim 5, characterized in that: The side wall surface of the material frame (11) is also fixedly mounted with a connecting screw hole (13).

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