Automatic hole shearing machine

Abstract

The utility model provides an automatic hole shearing machine, which is used for shearing holes in silica gel strips, and comprises a bearing table in a conveying mechanism, the bearing table is slidably arranged on a machine table along the width direction of the silica gel strips, and a plurality of silica gel strips connected along the width direction of the silica gel strips can be limited on the bearing table; the hole shearing mechanism is erected on the conveying mechanism and comprises a first hole shearing unit and a second hole shearing unit which are arranged in the width direction of the silica gel strip, the two hole shearing units are each provided with a shearing clamp and a pressing plate with a hollow hole, and the pressing plates can move in the thickness direction of the silica gel strip to extrude the silica gel strip. The cutting pliers are used for cutting off the protruding columnar bodies, so that blind holes are formed in the silica gel strip; the shearing pliers arranged on the first hole shearing unit and the shearing pliers arranged on the second hole shearing unit are arranged in a staggered mode in the length direction of the silica gel strip. The hollowed-out holes of the first hole shearing unit and the hollowed-out holes of the second hole shearing unit are arranged in a staggered mode in the length direction of the silica gel strip.

Description

Technical Field

[0001] The utility model belongs to the technical field of automated production, in particular to an automatic hole shearing machine. Background Art

[0002] There is a silicone door frame sealing strip product currently used in industrial water heaters to provide sealing and insulation. During the production process, a blind hole needs to be cut on the surface of the silicone strip, and then silicone glue is poured into the blind hole. Finally, a magnet is installed to fix it in the blind hole with the help of silicone glue, so that the silicone door frame sealing strip can be attached to the door frame of the water heater.

[0003] A single silicone strip needs to be fitted with eight magnets, requiring eight blind holes cut out for these magnets. Given the soft, difficult-to-control shape of this strip, and the production volume of millions of units, manually cutting the holes is a time-consuming and labor-intensive process. Furthermore, skilled labor is generally required for this process, but workers often work long hours, experience high fatigue, and the quality of the blind holes cut in this fatigued state may not meet design requirements. Furthermore, manual labor makes it difficult to precisely control the hole depth, significantly impacting product yield.

[0004] In response to the above problems, the patent application number CN202323193655.9 discloses an automatic hole cutting machine for silicone door frame sealing strips. Although it can realize automatic hole cutting, the hole cutting operation can only be performed on one silicone strip at a time. Therefore, the actual production involves high-frequency positioning and pick-up and placement actions. Moreover, since the 8 blind holes of a silicone strip are arranged in two staggered rows, the silicone strip needs to be displaced in the axial and radial directions respectively during the hole cutting operation. Although a controller is used for displacement control, the displacement accuracy will undoubtedly decrease after mass production, thereby affecting the hole cutting position accuracy. Utility Model Content

[0005] In view of the above-mentioned problems existing in the prior art, the main purpose of the present invention is to provide an automatic hole shearing machine, which can achieve high-precision continuous hole shearing, thereby significantly improving production efficiency.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] The utility model provides an automatic hole cutting machine for cutting holes in silicone strips, the automatic hole cutting machine comprising:

[0008] Machine;

[0009] A conveying mechanism, wherein the conveying mechanism includes a carrying platform slidably provided on the machine platform along the width direction of the silicone strip, and a plurality of silicone strips connected along their own width direction can be confined on the carrying platform;

[0010] A shearing mechanism is mounted on the conveying mechanism and includes a first shearing unit and a second shearing unit arranged along the width direction of the silicone strip. Both shearing units are provided with shearing pliers and a pressing plate containing a hollow hole. The pressing plate can move along the thickness direction of the silicone strip to squeeze the silicone strip so that the prefabricated columnar body inside the silicone strip protrudes from the silicone strip at the hollow hole. The shearing pliers is used to shear off the protruding columnar body to form a blind hole in the silicone strip.

[0011] The shearing clamps provided in the first shearing unit and the shearing clamps provided in the second shearing unit are staggered in the length direction of the silicone strip; the hollow holes of the first shearing unit and the hollow holes of the second shearing unit are staggered in the length direction of the silicone strip.

[0012] As a further description of the above technical solution, the first hole cutting unit is operated before the second hole cutting unit, so that the plurality of silicone strips form the blind holes in sequence;

[0013] In the width direction of the silicone strip, the moving direction of the supporting platform during the operation of the first hole cutting unit is opposite to the moving direction during the operation of the second hole cutting unit.

[0014] As a further description of the above technical solution, the plurality of shearing pliers included in each hole cutting unit are arranged along the length direction of the silicone strip;

[0015] Each cutting unit comprises a plurality of cutting pliers and hollow holes which are arranged in a one-to-one correspondence.

[0016] As a further description of the above technical solution, the first hole cutting unit is driven by a first driving unit, and the second hole cutting unit is driven by a second driving unit;

[0017] Each driving unit includes a cylinder and a conducting component connected between the cylinder and the hole cutting unit along the thickness direction of the silicone strip.

[0018] As a further description of the above technical solution, the conducting assembly includes a crossbeam extending along the length direction of the silicone strip, and the crossbeam is fixedly connected to the piston rod of the cylinder;

[0019] The crossbeam can be displaced along the thickness direction of the silicone strip under the drive of the cylinder;

[0020] The shearing pliers and the pressing plate in the same shearing hole unit are fixedly connected to the side of the beam facing away from the cylinder through a plurality of wall plates.

[0021] As a further description of the above technical solution, it also includes a support frame, the support frame including two side plates fixedly connected to the machine along the thickness direction of the silicone strip, and a cover plate fixedly connected to the two side plates along the length direction of the silicone strip;

[0022] The cylinders included in the two drive units are both installed on the cover plate;

[0023] In the thickness direction of the silicone strip, the crossbeam is located between the cover plate and the hole cutting unit.

[0024] As a further description of the above technical solution, a plurality of guide columns extending along the thickness direction of the silicone strip and passing through the crossbeam are further provided between the cover plate and the machine platform, and the guide columns are used to guide the displacement of the crossbeam.

[0025] As a further description of the above technical solution, a first sliding member is provided on the table surface of the machine facing the carrier platform, and a second sliding member is provided on a side of the carrier platform facing the machine platform;

[0026] The first sliding member and the second sliding member are slidably matched.

[0027] As a further description of the above technical solution, the supporting platform is provided with a plurality of positioning steps along the length direction of the silicone strip, and each of the positioning steps can be abutted against the side wall of the silicone strip to limit the silicone strip.

[0028] As a further description of the above technical solution, a plurality of positioning pins are further provided on a side of the carrier away from the machine, and the positioning pins extend along the thickness direction of the silicone strip;

[0029] The plurality of silicone strips connected along their width direction are further provided with positioning holes that match the positioning pins in a one-to-one correspondence.

[0030] By means of the above technical solutions, the outstanding effects of the present invention are:

[0031] The automatic hole cutting machine provided by the present invention comprises a machine platform, a conveying mechanism and a hole cutting mechanism; wherein, the conveying mechanism comprises a supporting platform which is slidably arranged on the machine platform along the width direction of the silicone strip, and a plurality of silicone strips connected along their own width direction can be limited on the supporting platform; the hole cutting mechanism is mounted on the conveying mechanism, and comprises a first hole cutting unit and a second hole cutting unit arranged along the width direction of the silicone strip, so that the two hole cutting units can perform hole cutting operations on a plurality of silicone strips in sequence along the width direction of the silicone strip; and both hole cutting units are provided with a shearing clamp and a pressing plate containing a hollow hole, and the pressing plate can move along the thickness direction of the silicone strip to squeeze the silicone strip, so that the columnar body prefabricated inside the silicone strip protrudes from the silicone strip at the hollow hole, and finally the shearing clamp shears off the protruding columnar body to form a blind hole in the silicone strip; in addition, the first and second hole cutting units are arranged along the width direction of the silicone strip, so that the first and second hole cutting units can perform hole cutting operations on a plurality of silicone strips in sequence along the width direction of the silicone strip; and the two hole cutting units are provided with a shearing clamp and a pressing plate containing a hollow hole, and the pressing plate can move along the thickness direction of the silicone strip to squeeze the silicone strip, so that the columnar body prefabricated inside the silicone strip protrudes from the silicone strip at the hollow hole, and finally the shearing clamp shears off the protruding columnar body to form a blind hole in the silicone strip; in addition, the first and second ... The shearing pliers of the first hole-cutting unit and the shearing pliers of the second hole-cutting unit are staggered in the length direction of the silicone strip; the hollow holes of the first hole-cutting unit and the hollow holes of the second hole-cutting unit are staggered in the length direction of the silicone strip; therefore, the two hole-cutting units can respectively form the required blind holes at different positions of multiple silicone strips; in summary, by utilizing the automatic hole-cutting machine provided by the utility model, there is no need for manual intervention, and the blind hole forming operation of multiple silicone strips can be achieved by means of mechanical devices, and the frequency of manual positioning and taking and placing of the silicone strips is low, which is more conducive to improving production efficiency; at the same time, the arrangement direction of the first hole-cutting unit and the second hole-cutting unit is consistent with the moving direction of the support platform, and the support platform only produces displacement in one direction during a blind hole forming process, and the hole cutting accuracy can be higher while continuously cutting holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a structural diagram of an automatic hole shearing machine from one perspective in an embodiment of the present utility model;

[0033] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0034] Figure 3 This is a structural diagram of an automatic hole shearing machine from another perspective in an embodiment of the present utility model;

[0035] Figure 4 This is a planar schematic diagram of a plurality of silicone strips connected along their width direction in an embodiment of the present invention;

[0036] Figure 5 This is a state diagram of a silicone strip in an embodiment of the present invention when it is conveyed along its width direction to a shearing unit and is not squeezed;

[0037] Figure 6 This is a diagram showing the state of a silicone strip after it is conveyed along its width direction to a shearing unit and squeezed in an embodiment of the present invention.

[0038] Description of Figure Numbers:

[0039] 1. Silicone strip; 2. Machine platform; 3. Loading platform; 4. Shearing pliers; 5. Hollow hole; 6. Press plate; 7. Column; 8. Cylinder; 9. Beam; 10. Piston rod; 11. Wall panel; 12. Side panel; 13. Cover plate; 14. Guide column; 15. First sliding member; 16. Second sliding member; 17. Positioning step; 18. Positioning hole. DETAILED DESCRIPTION

[0040] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "upper", "middle", "lower", "inside", "outside", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following describes the implementation of the present invention based on its overall structure.

[0042] See also Figures 1 to 6 The utility model discloses an automatic hole cutting machine for cutting holes in a silicone strip 1. The automatic hole cutting machine comprises:

[0043] Machine 2;

[0044] A conveying mechanism, wherein the conveying mechanism includes a carrying platform 3 slidably provided on the machine platform 2 along the width direction of the silicone strip 1, and a plurality of silicone strips 1 connected along their own width direction can be confined on the carrying platform 3;

[0045] A shearing mechanism is mounted on the conveying mechanism and includes a first shearing unit and a second shearing unit arranged along the width direction of the silicone strip 1. Both shearing units are provided with a shearing clamp 4 and a pressing plate 6 containing a hollow hole 5. The pressing plate 6 can move along the thickness direction of the silicone strip 1 to squeeze the silicone strip 1 so that the prefabricated columnar body 7 inside the silicone strip 1 protrudes from the silicone strip 1 at the hollow hole 5. The shearing clamp 4 is used to shear off the protruding columnar body 7 to form a blind hole in the silicone strip 1; wherein,

[0046] The shearing clamp 4 provided in the first shearing unit and the shearing clamp 4 provided in the second shearing unit are staggered in the length direction of the silicone strip 1; the hollow holes 5 of the first shearing unit and the hollow holes 5 of the second shearing unit are staggered in the length direction of the silicone strip 1.

[0047] With the above structure, when performing the hole cutting operation of the silicone strip 1, the operator only needs to place a plurality of silicone strips 1 connected along their own width on the carrier 3 included in the conveying mechanism, and then the carrier 3 will move along the width direction of the silicone strip 1 toward the hole cutting mechanism, so that the first hole cutting unit and the second hole cutting unit arranged along the width direction of the silicone strip 1 respectively cut the holes of the silicone strip 1. Both hole cutting units are provided with a shearing clamp 4 and a pressure plate 6 containing a hollow hole 5. When any hole cutting unit cuts the silicone strip 1, the pressure plate 6 can cut the holes of the silicone strip 1. During the hole-cutting process, the hollow hole 5 on the pressure plate 6 will be aligned with the position of the hole to be cut on the silicone strip 1 in the thickness direction, and then the pressure plate 6 moves along the thickness direction of the silicone strip 1 to squeeze the silicone strip 1, so that the silicone strip 1 is compressed and deformed except for the area corresponding to the hollow hole 5, and the prefabricated columnar body 7 corresponding to the hollow hole 5 protrudes upward from the hollow hole 5 of the silicone strip 1, so that the shearing clamp 4 cuts it off, so that the silicone strip 1 forms a blind hole of a preset size. The shearing clamp 4 provided with the first hole-cutting unit and the shearing clamp 4 provided with the second hole-cutting unit are staggered in the length direction of the silicone strip 1; the hollow holes 5 of the first hole-cutting unit and the hollow holes 5 of the second hole-cutting unit are staggered in the length direction of the silicone strip 1. It should be understood that the specific parameters of the staggered setting can be set according to actual needs (such as the spacing size of the blind holes, etc.), so as to form the required blind holes at different positions of multiple silicone strips 1. The above-mentioned forming process does not require manual intervention, and the blind hole forming operation of multiple silicone strips 1 is realized by means of mechanical devices. The frequency of manual positioning and placement of the silicone strips 1 is low, which is more conducive to improving production efficiency. At the same time, the arrangement direction of the first hole cutting unit and the second hole cutting unit is consistent with the moving direction of the supporting platform 3. The supporting platform 3 only produces displacement in one direction during a blind hole forming process, and the hole cutting accuracy can be higher while continuously cutting holes.

[0048] See also Figure 4 Specifically, in this embodiment, the six silicone strips 1 are all in the shape of long strips and are connected along their width direction (preferably, in order to facilitate the overall placement of the six silicone strips 1 and the subsequent separation of the silicone strips 1, the two silicone strips 1 are partially interconnected). For the convenience of explanation, the six silicone strips 1 are numbered AF in sequence along their width direction. The positions where blind holes need to be processed in each silicone strip 1 are on both sides of its top surface, that is, two columns along its own length direction, a total of 8 positions. Each position where a blind hole is to be processed is preset with a columnar body 7 inside. After the silicone strip 1 is deformed under pressure, the columnar body 7 will protrude from the surface of the silicone strip 1, which is convenient for shearing the columnar body 7. (For example, the blind hole positions on the A silicone strip 1 are A1-A4 and A5-A8, the blind hole positions on the B silicone strip 1 are B1-B4 and B5-B8, and the CF silicone strip 1 will not be explained in sequence. It should be understood that the numbers do not exist during actual production, but the positions of the blind holes to be formed are still staggered). The positions of the two rows of blind holes are staggered. After the prefabricated columnar body 7 at the corresponding position of each of the silicone strips 1 is cut off, the required blind holes can be formed.

[0049] See also Figures 1 to 6Specifically, in this embodiment, the first hole-cutting unit operates before the second hole-cutting unit, so that the plurality of silicone strips 1 are sequentially formed with the blind holes; in the width direction of the silicone strip 1, the direction of movement of the carrier 3 during the operation of the first hole-cutting unit is opposite to that during the operation of the second hole-cutting unit. More specifically, the six silicone strips 1 connected along their width direction are placed on the carrier 3 at a fixed position, and then the carrier 3 moves along the width direction of the silicone strip 1 toward the hole-cutting mechanism. The silicone strip 1 numbered A first arrives under the first hole-cutting unit, so that the columnar bodies 7 at positions A1-A4 are aligned with the hollow holes 5 of the first hole-cutting unit. The pressing plate 6 moves along the thickness direction of the silicone strip 1 numbered A to squeeze the silicone strip 1, so that the silicone strip 1 numbered A is compressed downward except for the area corresponding to the hollow holes 5, so that the prefabricated columnar bodies 7 A1-A4 on the silicone body numbered A protrude upward from the hollow holes 5 out of the silicone strip 1, and the shearing mechanism is pressed. The cutting pliers 4 cut off the silicone strip 1, thereby forming corresponding blind holes on the silicone strip 1, and then the supporting platform 3 continues to move forward, so that the remaining 5 silicone strips 1 reach the first hole cutting unit in the order of B→C→D→E→F to form blind holes; the supporting platform 3 moves forward, so that the silicone strip 1 numbered F reaches the second hole cutting unit, and forms blind holes F5-F8 before the silicone strip 1 numbered E, and then the supporting platform 3 runs in the reverse direction, so that the remaining 5 silicone strips 1 reach the second hole cutting unit in the order of E→D→C→B→A to form blind holes; then the supporting platform 3 continues to run in the reverse direction and resets to the loading starting point, and the operator can remove the 6 silicone strips 1 with formed blind holes. As a result, multiple pieces of the silicone strips 1 are loaded and unloaded at a time, which effectively reduces the frequency of positioning and taking and placing the silicone strips 1, and is more conducive to improving production efficiency; and in the process of forming all the blind holes of the 6 pieces of the silicone strips 1, the supporting platform 3 only moves forward and reverses along the width direction of the silicone strip 1, and does not involve multi-directional displacement, which can effectively ensure the operating error of the automatic hole shearing machine under long-term operation, thereby controlling the accuracy of hole shearing.

[0050] Specifically, in this embodiment, each cutting hole unit includes 4 cutting clamps 4 and 4 hollow holes 5. The 4 cutting clamps 4 are arranged along the length direction of the silicone strip 1, and each cutting clamp 4 is corresponding to a hollow hole 5, so that they can work synchronously and form a row of 4 blind holes on the silicone strip 1 at one time. Of course, in other embodiments, if the number of blind holes in a row on a piece of the silicone strip 1 is other, the same number of cutting clamps 4 and hollow holes 5 can also be set in each cutting hole unit. Figure 3As shown, the hollow hole 5 is set in the middle of the pressure plate 6, and its diameter is about 6mm. The diameter of the column 7 is about 4.0mm. Therefore, when the pressure plate 6 is pressed down, the protrusion of the column 7 will not be hindered by the pressure plate 6. Specifically, in this embodiment, the protrusion height of the column 7 is 2.45mm. The shearing pliers 4 adopts MS-10 gas-capped shearing pliers 4, which has a pressing force of 60kgf, an operating pressure of 4-5kgf / cm2, a maximum opening size of the blade of 5mm, and a net height of the inner cavity of the blade of 15mm. This type of shearing pliers 4 is powerful, the blade is strong and durable, has a long life and is not easy to deform. The cutter head is made of metal alloy, has high hardness, high cutting ability, and strong power output, which can efficiently and quickly cut the column 7.

[0051] Specifically, in this embodiment, the first shearing unit is driven by a first drive unit, and the second shearing unit is driven by a second drive unit. Each drive unit includes a cylinder 8 and a conductive assembly connected between the cylinder 8 and the shearing unit along the thickness direction of the silicone strip 1. For example, the cylinder 8 can be the AirTac SCJ80X25-20S adjustable cylinder 8, a dual-axis, double-acting, stroke-adjustable cylinder 8 that is easy to install and maintain and requires no additional accessories.

[0052] See also Figure 1 and Figure 3 Specifically, in this embodiment, the crossbeam 9 included in the conduction component extends along the length direction of the silicone strip 1, and the crossbeam 9 is fixedly connected to the piston rod of the cylinder 8. The crossbeam 9 can be displaced along the thickness direction of the silicone strip 1 under the drive of the cylinder 8. The shearing clamp 4 and the pressure plate 6 in the same hole cutting unit are fixedly connected to the side of the crossbeam 9 away from the cylinder 8 through multiple wall panels 11, so that the four shearing clamps 4 and the four pressure plates 6 of the same hole cutting unit can work downward synchronously. In one operation stroke, the parts of the four columns 7 in a row on a piece of silicone strip 1 can be pressed down at the same time. After the four columns 7 bulge outward synchronously, they are sheared by the four shearing clamps 4 at the same time, forming four blind holes accordingly.

[0053] Specifically, in this embodiment, two side plates 12 are fixedly connected to the machine 2 along the thickness direction of the silicone strip 1, and a cover plate 13 is fixedly connected to the two side plates 12 along the length direction of the silicone strip 1. The two side plates 12 and the cover plate 13 together constitute a support frame for installing the cylinder 8 included in the two driving units; in the thickness direction of the silicone strip 1, the beam 9 is located between the cover plate 13 and the hole shearing unit, so that the cover plate 13 also has a limiting effect on the reverse upward movement of the beam 9.

[0054] Specifically, in this embodiment, four guide columns 14 extending along the thickness direction of the silicone strip 1 and passing through the crossbeam 9 are provided between the cover plate 13 and the machine 2, so that the crossbeam 9 can be displaced along the extension direction of the guide columns 14 under the drive of the cylinder 8, thereby realizing the physical guiding effect on the two hole shearing units.

[0055] See also Figures 1 to 3 Specifically, in this embodiment, a first sliding member 15 is provided on the surface of the machine platform 2 facing the support platform 3, and a second sliding member 16 is provided on the surface of the support platform 3 facing the machine platform 2. The first sliding member 15 and the second sliding member 16 slidably cooperate with each other, thereby achieving a slidable connection between the support platform 3 and the machine platform 2. The sliding cooperation of the two sliding members can be achieved by an external power source, such as a servo motor. The specific connection between the servo motor and the two sliding members is conventional in the art and will not be further described here.

[0056] See also Figure 1 、 Figure 2 as well as Figure 4 Specifically, in this embodiment, because the silicone strips 1 are soft and easily deformed, the carrier 3 is further provided with three positioning steps 17 along the length of the silicone strips 1. Each positioning step 17 can abut against the side wall of the silicone strip 1 numbered F that faces away from the silicone strip 1 numbered A to position the six silicone strips 1. Furthermore, the carrier 3 is further provided with a plurality of positioning pins (not shown) on the side facing away from the machine 2. The positioning pins extend along the thickness direction of the silicone strips 1. Each silicone strip 1 connected along its width is also provided with a positioning hole 18 that corresponds one-to-one with the positioning pin. During operation, these holes cooperate with the positioning steps 17 to achieve a more stable limiting and fixing effect on the six silicone strips 1 on the carrier 3, avoiding deviation caused by shearing holes and improving the yield rate. For example, in this embodiment, the support platform 3 is provided with an elliptical positioning pin corresponding to the diagonal top of the silicone strips 1 numbered A, D, and F, respectively, to match the positioning holes 18 provided at the diagonal top of the silicone strips 1 numbered A, D, and F. It should be understood that the pressing plate 6 and the positioning pins should be offset in the thickness direction of the silicone strip 1 so that the positioning pins will not interfere with the pressing plate 6 when the pressing plate 6 presses down to cause the upper column 7 of the silicone strip 1 to bulge upward.

[0057] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any changes, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic hole cutting machine for cutting holes in silicone strips, characterized in that: include: Machine; A conveying mechanism, wherein the conveying mechanism includes a carrying platform slidably provided on the machine platform along the width direction of the silicone strip, and a plurality of silicone strips connected along their own width direction can be confined on the carrying platform; A shearing mechanism is mounted on the conveying mechanism and includes a first shearing unit and a second shearing unit arranged along the width direction of the silicone strip. Both shearing units are provided with shearing pliers and a pressing plate containing a hollow hole. The pressing plate can move along the thickness direction of the silicone strip to squeeze the silicone strip so that the prefabricated columnar body inside the silicone strip protrudes from the silicone strip at the hollow hole. The shearing pliers is used to shear off the protruding columnar body to form a blind hole in the silicone strip. The shearing clamps provided in the first shearing unit and the shearing clamps provided in the second shearing unit are staggered in the length direction of the silicone strip; the hollow holes of the first shearing unit and the hollow holes of the second shearing unit are staggered in the length direction of the silicone strip.

2. The automatic hole shearing machine according to claim 1, characterized in that: The first hole cutting unit operates before the second hole cutting unit, so that the plurality of silicone strips form the blind holes in sequence; In the width direction of the silicone strip, the moving direction of the supporting platform during the operation of the first hole cutting unit is opposite to the moving direction during the operation of the second hole cutting unit.

3. The automatic hole shearing machine according to claim 1, characterized in that: The plurality of shearing pliers included in each shearing unit are arranged along the length direction of the silicone strip; Each cutting unit comprises a plurality of cutting pliers and hollow holes which are arranged in a one-to-one correspondence.

4. The automatic hole shearing machine according to claim 1, characterized in that: The first hole cutting unit is driven by a first driving unit, and the second hole cutting unit is driven by a second driving unit; Each driving unit includes a cylinder and a conducting component connected between the cylinder and the hole cutting unit along the thickness direction of the silicone strip.

5. The automatic hole shearing machine according to claim 4, characterized in that: The conducting assembly includes a crossbeam extending along the length direction of the silicone strip, and the crossbeam is fixedly connected to the piston rod of the cylinder; The crossbeam can be displaced along the thickness direction of the silicone strip under the drive of the cylinder; The shearing pliers and the pressing plate in the same shearing hole unit are fixedly connected to the side of the beam facing away from the cylinder through a plurality of wall plates.

6. The automatic hole shearing machine according to claim 5, characterized in that: It also includes a support frame, the support frame including two side plates fixedly connected to the machine along the thickness direction of the silicone strip, and a cover plate fixedly connected to the two side plates along the length direction of the silicone strip; The cylinders included in the two drive units are both installed on the cover plate; In the thickness direction of the silicone strip, the crossbeam is located between the cover plate and the hole cutting unit.

7. The automatic hole shearing machine according to claim 6, characterized in that: A plurality of guide posts extending along the thickness direction of the silicone strip and passing through the crossbeam are further provided between the cover plate and the machine platform, and the guide posts are used to guide the crossbeam in displacement.

8. The automatic hole shearing machine according to claim 1, characterized in that: The table surface of the machine platform facing the supporting platform is provided with a first sliding member, and the side of the supporting platform facing the machine platform is provided with a second sliding member; The first sliding member and the second sliding member are slidably matched.

9. The automatic hole shearing machine according to claim 1, characterized in that: The supporting platform is provided with a plurality of positioning steps along the length direction of the silicone strip, and each of the positioning steps can abut against the side wall of the silicone strip to limit the silicone strip.

10. The automatic hole shearing machine according to claim 9, characterized in that: A plurality of positioning pins are further provided on the side of the carrier away from the machine, and the positioning pins extend along the thickness direction of the silicone strip; The plurality of silicone strips connected along their width direction are further provided with positioning holes that match the positioning pins in a one-to-one correspondence.

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