Novel rubber expander

Abstract

The utility model relates to the technical field of rubber part expansion, in particular to a novel rubber expander. Comprising a bottom plate, two outer vertical plates arranged in parallel at intervals are arranged on the bottom plate, a main connecting rod is movably installed between the two outer vertical plates through a guide rail strip, one end of the main connecting rod is connected with a piston rod of an air cylinder, and the air cylinder is fixedly installed on an air cylinder flange plate on the bottom plate; a first expansion semi-cone is mounted at the lower end of the first auxiliary connecting rod; a second expansion semi-cone is mounted at the upper end of the second auxiliary connecting rod; a third expansion semi-cone is mounted at the upper end of the third auxiliary connecting rod; a fourth expansion semi-cone is installed at the end, away from the air cylinder, of the main connecting rod, and the first expansion semi-cone, the second expansion semi-cone, the third expansion semi-cone and the fourth expansion semi-cone define a conical shape. The device is simple in structure, convenient to use, rapid in expansion, time-saving and labor-saving, only needs one air cylinder, reduces cost, replaces traditional electronic elements with mechanical transmission parts, and is simple to control and low in failure rate.

Description

Technical field:

[0001] The utility model relates to the technical field of rubber piece expansion, in particular to a novel rubber expander. Background technology:

[0002] At present, when expanding the hole of a rubber part, an expander is generally used. For example, the patent application with the publication number CN212171301U discloses a rubber sleeve expander, whose structure is to install multiple cylinders on the fixed plate of the workbench, each cylinder drives an expansion rod respectively, and each cylinder moves synchronously, driving each expansion rod to expand synchronously, so as to expand the hole of the rubber part. This structural form has the following main disadvantages: first, multiple cylinders need to be set up, which increases the equipment cost; second, the synchronous action of multiple cylinders is not easy to control, the debugging work is cumbersome, the control is difficult, there are many electronic parts, the failure rate is high, and the shutdown maintenance is easy to affect the work efficiency.

[0003] In summary, the above-mentioned problems of rubber expansion machines have become technical problems that need to be solved urgently in the industry. Utility model content:

[0004] In order to make up for the deficiencies of the prior art, the utility model provides a novel rubber expander, which solves the problems of the previous expander requiring many cylinders, high cost, difficult control of cylinder synchronous action and high failure rate.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] A novel rubber expander comprises a bottom plate, two outer plates arranged in parallel and spaced apart are arranged on the bottom plate, a main connecting rod is movably installed between the two outer plates through a guide rail, one end of the main connecting rod is connected to the piston rod of a cylinder, and the cylinder is fixedly installed on a cylinder flange plate on the bottom plate;

[0007] The upper side of the main connecting rod is connected to the upper end of the first secondary connecting rod through a first connecting member, the middle part of the first secondary connecting rod is installed between the two outer vertical plates through a supporting shaft, and the lower end of the first secondary connecting rod is installed with a first expansion semi-cone;

[0008] The lower side of the main connecting rod is connected to the lower part of the second secondary connecting rod through a second connecting member, the middle part of the second secondary connecting rod is installed between the two outer vertical plates through a supporting shaft, and the upper end of the second secondary connecting rod is installed with a second expansion semi-cone;

[0009] The bottom end of the second connecting rod is connected to the bottom end of the third connecting rod through a third connecting member, the middle part of the third connecting rod is installed between the two outer plates through a supporting shaft, and the upper end of the third connecting rod is installed with a third expansion semi-cone;

[0010] A fourth expansion semi-cone is installed at one end of the main connecting rod away from the cylinder, and the first expansion semi-cone, the second expansion semi-cone, the third expansion semi-cone and the fourth expansion semi-cone form a cone shape.

[0011] The two outer panels are fixedly connected to the base plate via a plurality of fixing bolts at the bottom.

[0012] The main connecting rod is provided with a horizontally arranged long strip hole, and the guide rail is located in the long strip hole to guide the horizontal movement of the main connecting rod, and the length of the long strip hole is greater than the length of the guide rail.

[0013] One end of the main connecting rod is provided with a T-shaped slot, and the end of the piston rod of the cylinder is provided with a boss matched with the T-shaped slot.

[0014] A support plate is fixedly installed between the top of the cylinder flange plate and the two outer vertical plates.

[0015] The two ends of the first connecting member are connected to the main connecting rod and the first secondary connecting rod through a rotating shaft, the two ends of the second connecting member are connected to the main connecting rod and the second secondary connecting rod through a rotating shaft, and the two ends of the third connecting member are connected to the second secondary connecting rod and the third secondary connecting rod through a rotating shaft.

[0016] The first and second secondary connecting rods are both L-shaped, and the third secondary connecting rod is linear.

[0017] The first expansion semi-cone, the second expansion semi-cone, the third expansion semi-cone and the fourth expansion semi-cone are detachably connected to the first secondary connecting rod, the second secondary connecting rod, the third secondary connecting rod and the main connecting rod respectively through bolts.

[0018] The radii of the front ends of the first expanded semi-cone, the second expanded semi-cone, the third expanded semi-cone, and the fourth expanded semi-cone are smaller than the radii of the rear ends.

[0019] The first expanded semi-cone, the second expanded semi-cone, the third expanded semi-cone and the fourth expanded semi-cone are all integrally formed.

[0020] The utility model adopts the above scheme and has the following advantages:

[0021] By arranging a main connecting rod between the two outer plates, when the cylinder drives the main connecting rod to move, the main connecting rod can drive the first expansion semi-cone, the second expansion semi-cone, the third expansion semi-cone, and the fourth expansion semi-cone to open and close synchronously through the first connecting piece and the first sub-connecting rod, the second connecting piece and the second sub-connecting rod, and the third connecting piece and the third sub-connecting rod, thereby realizing the expansion of the rubber part. The utility model has a simple structure, is easy to use, expands quickly, saves time and effort, only requires one cylinder, and reduces costs. Mechanical transmission components are used instead of previous electronic components, so the control is simple and the failure rate is low. According to the inner diameter of the rubber part, the rubber part is sleeved at different heights of the expansion semi-cone, and has good versatility. Description of the drawings:

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0023] Figure 2 It is a three-dimensional structural schematic diagram of the internal parts of the utility model.

[0024] Figure 3 It is a schematic diagram of the expanded semi-conical three-dimensional structure of the utility model.

[0025] In the figure, 1, base plate, 2, outer plate, 3, guide rail, 4, main connecting rod, 5, cylinder, 6, cylinder flange plate, 7, first connecting piece, 8, first secondary connecting rod, 9, first expanded semi-cone, 10, support shaft, 11, second connecting piece, 12, second secondary connecting rod, 13, second expanded semi-cone, 14, third connecting piece, 15, third secondary connecting rod, 16, third expanded semi-cone, 17, fourth expanded semi-cone, 18, long hole, 19, T-slot, 20, support plate, 21, rotating shaft. Specific implementation method:

[0026] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0027] like Figure 1-3 As shown, a new type of rubber expander includes a bottom plate 1, on which two outer plates 2 are arranged in parallel and spaced apart, a main connecting rod 4 is movably installed between the two outer plates 2 through a guide rail 3, one end of the main connecting rod 4 is connected to the piston rod of a cylinder 5, and the cylinder 5 is fixedly installed on a cylinder flange plate 6 on the bottom plate 1;

[0028] The upper side of the main connecting rod 4 is connected to the upper end of the first secondary connecting rod 8 through the first connecting member 7, the middle part of the first secondary connecting rod 8 is installed between the two outer vertical plates 2 through the support shaft 10, and the lower end of the first secondary connecting rod 8 is installed with a first expansion semi-cone 9;

[0029] The lower side of the main connecting rod 4 is connected to the lower part of the second secondary connecting rod 12 through the second connecting member 11, the middle part of the second secondary connecting rod 12 is installed between the two outer plates 2 through the support shaft 10, and the upper end of the second secondary connecting rod 12 is installed with a second expansion semi-cone 13;

[0030] The bottom end of the second secondary connecting rod 12 is connected to the bottom end of the third secondary connecting rod 15 through the third connecting member 14. The middle part of the third secondary connecting rod 15 is installed between the two outer vertical plates 2 through the support shaft 10. The upper end of the third secondary connecting rod 15 is installed with a third expansion semi-cone 16.

[0031] A fourth expansion semi-cone 17 is installed at the end of the main connecting rod 4 away from the cylinder 5. The cross-sections of the first expansion semi-cone 9, the second expansion semi-cone 13, the third expansion semi-cone 16, and the fourth expansion semi-cone 17 are semi-conical, and the first expansion semi-cone 9, the second expansion semi-cone 13, the third expansion semi-cone 16, and the fourth expansion semi-cone 17 form a cone shape.

[0032] The two outer panels 2 are fixedly connected to the base plate 1 by a plurality of fixing bolts at the bottom, respectively, so as to facilitate disassembly.

[0033] The main connecting rod 4 is provided with a horizontally arranged long hole 18, and the guide bar 3 is fixed between the two outer panels 2 by screws. The guide bar 3 is located in the long hole 18 to guide the horizontal movement of the main connecting rod 4. The length of the long hole 18 is greater than the length of the guide bar 3 to reserve space for movement.

[0034] One end of the main connecting rod 4 is provided with a T-shaped slot 19, and the end of the piston rod of the cylinder 5 is provided with a boss matched with the T-shaped slot 19, and the boss can be clamped in the T-shaped slot 19 to facilitate disassembly and assembly.

[0035] A support plate 20 is fixedly installed between the top of the cylinder flange plate 6 and the two outer vertical plates 2 to reinforce and strengthen it.

[0036] The two ends of the first connecting member 7 are respectively connected to the main connecting rod 4 and the first secondary connecting rod 8 through the rotating shaft 21, the two ends of the second connecting member 11 are respectively connected to the main connecting rod 4 and the second secondary connecting rod 12 through the rotating shaft 21, and the two ends of the third connecting member 14 are respectively connected to the second secondary connecting rod 12 and the third secondary connecting rod 15 through the rotating shaft 21 to achieve a rotational connection.

[0037] The first and second auxiliary connecting rods 8 and 12 are both L-shaped, the support shaft 10 is disposed at the turning point of the L-shape, and the third auxiliary connecting rod 15 is linear.

[0038] The first expansion semi-cone 9, the second expansion semi-cone 13, the third expansion semi-cone 16, and the fourth expansion semi-cone 17 are detachably connected to the first secondary connecting rod 8, the second secondary connecting rod 12, the third secondary connecting rod 15, and the main connecting rod 4 through bolts, respectively.

[0039] The front end radius of the first expansion semi-cone 9, the second expansion semi-cone 13, the third expansion semi-cone 16, and the fourth expansion semi-cone 17 is smaller than the rear end radius. The rubber parts are mounted at different heights of the expansion semi-cones according to their inner diameters, which has good versatility.

[0040] The first expanded semi-cone 9, the second expanded semi-cone 13, the third expanded semi-cone 16, and the fourth expanded semi-cone 17 are all integrally formed.

[0041] Working principle:

[0042] During operation, when the cylinder 5 is extended and retracted, the piston rod of the cylinder 5 will drive the main connecting rod 4 to move left and right along the guide bar 3. When the main connecting rod 4 moves, the main connecting rod 4 can drive the first expansion semi-cone 9 through the first connecting member 7 and the first sub-connecting rod 8, drive the second expansion semi-cone 13 through the second connecting member 11 and the second sub-connecting rod 12, and the second sub-connecting rod 12 drives the third expansion semi-cone 16 through the third connecting member 14 and the third sub-connecting rod 15. The main connecting rod 4 itself drives the fourth expansion semi-cone 17 to open and close synchronously. According to the inner diameter of the rubber part, the rubber part is put on each expansion semi-cone to achieve the expansion of the rubber part.

[0043] The above-mentioned specific implementation manner cannot be used as a limitation on the protection scope of the present utility model. For those skilled in the art, any replacement, improvement or change made to the implementation manner of the present utility model falls within the protection scope of the present utility model.

[0044] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A new type of rubber expander, characterized by: It includes a bottom plate, two outer plates are arranged in parallel and spaced apart on the bottom plate, a main connecting rod is movably installed between the two outer plates through a guide rail, one end of the main connecting rod is connected to the piston rod of the cylinder, and the cylinder is fixedly installed on the cylinder flange plate on the bottom plate; The upper side of the main connecting rod is connected to the upper end of the first secondary connecting rod through a first connecting member, the middle part of the first secondary connecting rod is installed between the two outer vertical plates through a supporting shaft, and the lower end of the first secondary connecting rod is installed with a first expansion semi-cone; The lower side of the main connecting rod is connected to the lower part of the second secondary connecting rod through a second connecting member, the middle part of the second secondary connecting rod is installed between the two outer vertical plates through a supporting shaft, and the upper end of the second secondary connecting rod is installed with a second expansion semi-cone; The bottom end of the second connecting rod is connected to the bottom end of the third connecting rod through a third connecting member, the middle part of the third connecting rod is installed between the two outer plates through a supporting shaft, and the upper end of the third connecting rod is installed with a third expansion semi-cone; A fourth expansion semi-cone is installed at one end of the main connecting rod away from the cylinder, and the first expansion semi-cone, the second expansion semi-cone, the third expansion semi-cone and the fourth expansion semi-cone form a cone shape.

2. A novel rubber expander according to claim 1, characterized in that: The two outer panels are fixedly connected to the base plate via a plurality of fixing bolts at the bottom.

3. A novel rubber expander according to claim 1, characterized in that: The main connecting rod is provided with a horizontally arranged long strip hole, and the guide rail is located in the long strip hole to guide the horizontal movement of the main connecting rod, and the length of the long strip hole is greater than the length of the guide rail.

4. A novel rubber expander according to claim 1, characterized in that: One end of the main connecting rod is provided with a T-shaped slot, and the end of the piston rod of the cylinder is provided with a boss matched with the T-shaped slot.

5. A novel rubber expander according to claim 1, characterized in that: A support plate is fixedly installed between the top of the cylinder flange plate and the two outer vertical plates.

6. A novel rubber expander according to claim 1, characterized in that: The two ends of the first connecting member are connected to the main connecting rod and the first secondary connecting rod through a rotating shaft, the two ends of the second connecting member are connected to the main connecting rod and the second secondary connecting rod through a rotating shaft, and the two ends of the third connecting member are connected to the second secondary connecting rod and the third secondary connecting rod through a rotating shaft.

7. A novel rubber expander according to claim 1, characterized in that: The first and second secondary connecting rods are both L-shaped, and the third secondary connecting rod is linear.

8. A novel rubber expander according to claim 1, characterized in that: The first expansion semi-cone, the second expansion semi-cone, the third expansion semi-cone and the fourth expansion semi-cone are detachably connected to the first secondary connecting rod, the second secondary connecting rod, the third secondary connecting rod and the main connecting rod respectively through bolts.

9. A novel rubber expander according to claim 1, characterized in that: The radius of the front end of the first expanded semi-cone, the second expanded semi-cone, the third expanded semi-cone, and the fourth expanded semi-cone is smaller than the radius of the rear end.

10. A novel rubber expander according to claim 1, characterized in that: The first expanded semi-cone, the second expanded semi-cone, the third expanded semi-cone and the fourth expanded semi-cone are all integrally formed.

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