Screen printing machine for special-shaped container

Abstract

The invention relates to the field of screen printing equipment, in particular to a special-shaped container screen printing machine which comprises a rack, a positioning assembly and a transferring assembly. The positioning assembly and the transferring assembly are both arranged on the rack. The positioning assembly comprises a positioning cylinder base, a floating cone block, a floating elastic piece and a positioning rod piece, a sliding cavity is formed in the positioning cylinder base, the floating cone block is in sliding fit with the sliding cavity, the floating cone block is in clearance fit with the inner wall of the sliding cavity, and the two sides of the floating elastic piece are installed on the positioning cylinder base and the floating cone block correspondingly; the positioning rod piece is mounted on the floating conical block; a floating ring is mounted on the positioning cylinder seat, a floating taper hole is formed in the floating ring in a penetrating manner, the floating taper hole communicates with the sliding cavity, and the floating taper block is inserted into the floating taper hole in a matched manner; the transferring assembly is used for enabling the bottle opening of the container to move towards the positioning rod piece. The silk-screen printing device has the effect that in the silk-screen printing process of the container, the situation that the bottle opening is damaged due to the fact that the positioning rod piece abuts against the bottle opening is not prone to occurring.

Description

Technical Field

[0001] The present application relates to the field of screen printing equipment, and in particular to a screen printing machine for special-shaped containers. Background Art

[0002] Silk screen printing is a common printing process in modern industry, which is usually completed by screen printing and scraper printing. The screen is provided with a perforated area and a non-perforated area, and the shape of the perforated area is set corresponding to the pattern to be printed, so that the perforated area and the non-perforated area are covered on the surface of the object, and a pattern with the same shape as the perforated area is printed.

[0003] When performing silk screen printing, the bottom of the silk screen needs to be laid on the surface of the fixed object, and then the paint is placed on the top of the silk screen. Finally, the paint on the top of the silk screen is scraped back and forth with a scraper so that the paint passes through the perforated area of ​​the silk screen and prints a pattern on the surface of the object.

[0004] In the existing related technologies, the equipment used for screen printing can refer to the invention patent announced as CN 118061665 A, which discloses a multi-module cold stamping machine, including a plurality of screen printing mechanisms, screen printing gluing mechanisms, cold stamping mechanisms and discharging mechanisms arranged on the outer side of the inner casing in sequence along the rotation direction. The invention patent uses a rotary mechanical synchronous transmission system to complete multi-color printing of various containers after each container is plugged into each positioning rod, and has the technical advantage of fast printing speed.

[0005] Regarding the above-mentioned related technologies, for special-shaped containers with complex shapes, their surfaces usually have large undulations. For example, various bottles or vases with strong decorative properties are usually pear-shaped and have the characteristics of a small bottle mouth and a large bottle body. For such pear-shaped containers, positioning deviation often occurs due to their shape and the center of gravity being biased towards the bottom. This makes it difficult for the positioning rod to be plugged into such containers, and it is easy for the positioning rod to press against the bottle mouth, resulting in scratches or pitting on the bottle mouth, causing damage to the container. Summary of the invention

[0006] In order to prevent the positioning rod from pressing against the bottle mouth and causing damage to the bottle mouth during the silk-screen printing process, the present application provides a silk-screen printing machine for special-shaped containers.

[0007] The present application provides a special-shaped container screen printing machine adopts the following technical solution: A screen printing machine for special-shaped containers, comprising a frame, a positioning component and a transfer component; The positioning assembly and the transfer assembly are both arranged on the frame; The positioning assembly includes a positioning cylinder seat, a floating cone block, a floating elastic member and a positioning rod. The positioning cylinder seat is provided with a sliding chamber inside. The floating cone block is slidingly matched in the sliding chamber, and the floating cone block is gap-matched in the inner wall of the sliding chamber. The two sides of the floating elastic member are respectively mounted on the positioning cylinder seat and the floating cone block. The positioning rod is mounted on the floating cone block. The positioning rod is used to be plugged and matched with the bottle mouth of the container. The positioning cylinder seat is equipped with a floating ring, the floating ring is penetrated by a floating cone hole, the floating cone hole is connected to the sliding chamber, and the floating cone block is plugged and matched with the floating cone hole; The floating cone hole is provided with an enlarged opening and a reduced opening, and the diameter of the enlarged opening of the floating cone hole is larger than the diameter of the reduced opening; The floating cone block is provided with an enlarged end and a reduced end, the enlarged end of the floating cone block is adapted to the enlarged opening of the floating cone hole, and the reduced end of the floating cone block is adapted to the reduced opening of the floating cone hole; The transfer assembly is used to move the mouth of the container toward the positioning rod.

[0008] By adopting the above technical solution, when there is no deviation in the positioning of the container, the transfer assembly causes the bottle mouth of the container to move toward the positioning rod, and the floating cone block abuts and fits against the inner wall of the floating cone hole under the elastic action of the floating elastic member, so that the positioning rod is accurately inserted and fitted into the bottle mouth, reducing the situation where the positioning rod abuts against the bottle mouth and causes damage to the bottle mouth.

[0009] When the positioning of the container deviates, the transfer assembly causes the mouth of the container to move toward the positioning rod, so that the positioning rod abuts against the mouth of the container and is difficult to insert. When the positioning rod abuts against the mouth of the container, the container pushes the floating cone block through the positioning rod to overcome the elastic force of the floating elastic member and move away from the floating cone hole, so that the matching state of the floating cone block and the floating cone hole changes from a plug-in matching state to a clearance matching state. After changing to a clearance matching state, the swing of the floating cone block and the positioning rod is not easily limited by the inner wall of the floating cone hole, and the degree of freedom of the floating cone block increases with the increase of the deviation, thereby allowing the positioning rod to deflect its own axis and slide along the inner wall of the mouth of the bottle, and finally plug-in to the mouth of the bottle, which is beneficial to ensure the plug-in accuracy and reduce the occurrence of the situation where the positioning rod abuts against the mouth of the bottle and causes the mouth of the bottle to be damaged.

[0010] In addition, by abutting and fixing the mouth and bottom of the container through the transfer assembly, it can also be applied to containers with more complex shapes, such as pear-shaped, spherical, oblate spherical and polyhedral containers, and has good applicability. Moreover, it is also convenient to replace small batches of containers with different shapes, and the operation and debugging are relatively simple.

[0011] Optionally, the inner wall of the floating cone hole is arranged straight, and the outer wall of the floating cone block is arranged straight.

[0012] By adopting the above technical solution, during the process of the matching state of the floating cone block and the floating cone hole changing from the plug-in matching state to the clearance matching state, the distance between the floating cone block and the floating cone hole increases smoothly, which is beneficial for the floating cone block to adjust its posture accordingly according to the deviation size, thereby facilitating taking into account the accuracy and freedom of the positioning rod.

[0013] Optionally, the frame is equipped with a rotation driving member, and the rotation driving member is used to drive the positioning rod to rotate.

[0014] By adopting the above technical solution, it is convenient to perform screen printing on containers of various shapes from various angles. For example, screen printing can be performed on multiple surfaces of a multi-faceted container at a single station.

[0015] Optionally, a rotation locking ring is installed inside the sliding chamber, and the rotation locking ring is provided with a rotation locking groove, and the rotation locking groove faces the enlarged end of the floating cone block; The enlarged end of the floating cone block is provided with a rotation locking block, and the rotation locking block is plugged into and matched with the rotation locking groove; The inner wall of the rotation locking groove is provided with a groove body locking plane, and the outer wall of the rotation locking block is provided with a block body locking plane.

[0016] By adopting the above technical solution, after the bottle mouth of the container is plugged into the positioning rod, the transfer assembly continues to move the container in the same direction, so that the floating cone block overcomes the elastic force of the floating elastic member and moves away from the floating cone hole until the rotating locking block is plugged into the rotating locking groove, so that the floating cone block, the positioning rod and the positioning cone barrel will rotate at the same time under the action of the rotating drive member, thereby facilitating the precise control of the rotation angle of the container, thereby ensuring the accuracy of the container pattern position and clarity during the silk screen printing process.

[0017] Optionally, the floating cone block is equipped with an abutment ring, the diameter of which is larger than the diameter of the mouth of the container, and when the positioning rod is in a state of being plugged into the mouth of the container, the abutment ring abuts against the mouth of the container.

[0018] By adopting the above technical solution, the bottle mouth of the container is abutted against the abutment ring with a larger diameter and then acts on the floating cone block, which is beneficial to improving the stability of the container during rotation and ensuring that the rotation locking block is accurately inserted into the rotation locking groove before the container rotates, thereby ensuring that the floating cone block, the positioning rod and the positioning cone barrel will rotate simultaneously under the action of the rotating drive member, thereby ensuring the accuracy of the container pattern position and clarity during the silk screen printing process.

[0019] Optionally, the positioning rod is an expansion shaft, and when the positioning rod is in a state of being plugged into and fitted into the bottle mouth of a container, the diameter of the positioning rod increases.

[0020] The adoption of the above technical solution is conducive to improving the ability of the positioning rod to pass through the bottle mouth and to insert and fix containers of various diameters, thereby improving the applicability of the positioning rod.

[0021] Optionally, the special-shaped container screen printing machine further includes a fixing assembly, wherein the fixing assembly includes a bottle bottom push plate and a push plate driving member; The bottle bottom push plate is used for abutting and cooperating with the bottle bottom of the container, and the push plate driving member is used for driving the bottle bottom push plate to approach or move away from the positioning rod.

[0022] By adopting the above technical solution, while the positioning rod fixes the bottle mouth of the container, the bottle bottom push plate is assisted by the bottle bottom for fixation, which is beneficial to improve the stability of the container during the silk screen printing process, thereby meeting the subsequent silk screen printing, hot stamping, varnish and other functional requirements.

[0023] Optionally, the transfer assembly includes a conveyor belt, a container clamp, a vertical drive member, a horizontal drive member, and a flip drive member; The conveyor belt is used to horizontally convey the container to be screen-printed, the container clamp is used to fix the container conveyed by the conveyor belt, the vertical drive is used to drive the container clamp to move vertically, the horizontal drive is used to drive the container clamp to move horizontally, and the flip drive is used to drive the container clamp to rotate.

[0024] By adopting the above technical solution, it is convenient to adjust the posture of the container through the vertical drive member, the horizontal drive member and the flip drive member according to the type or shape of the container, thereby ensuring that the bottle mouth of the container can be accurately aligned with the positioning rod.

[0025] Optionally, the rack is equipped with a posture detector, which is used to detect whether the axis of the positioning rod is in an accurate state or a deviation state; The detection result of the posture detector is that when the axis of the positioning rod is in an accurate state, the axis of the positioning rod coincides with the axis of the bottle mouth of the container; The detection result of the posture detector is that when the axis of the positioning rod is in a deviation state, the axis of the positioning rod intersects, is parallel to, or is not in the same plane as the axis of the bottle mouth of the container; The posture detector is electrically connected to the transfer component.

[0026] By adopting the above technical solution, the transfer assembly can correspondingly correct the posture of the container according to the detection result of the posture detector, thereby further ensuring that the bottle mouth of the container can be accurately aligned with the positioning rod.

[0027] Optionally, the positioning rod is provided with a plug connector, and the surface of the plug connector is arranged in an arc shape.

[0028] By adopting the above technical solution, during the process of inserting the positioning rod into the bottle mouth of the container, the positioning rod can be smoothly inserted into the bottle mouth through the arc surface of the plug connector, thereby reducing the friction between the positioning rod and the bottle mouth.

[0029] In summary, the present application includes at least one of the following beneficial technical effects: 1. When there is no deviation in the positioning of the container, the transfer assembly moves the bottle mouth of the container toward the positioning rod, and the floating cone block abuts against the inner wall of the floating cone hole under the elastic action of the floating elastic member, so that the positioning rod is accurately inserted and matched with the bottle mouth, reducing the situation where the positioning rod abuts against the bottle mouth and causes damage to the bottle mouth; 2. When the positioning of the container deviates, the transfer assembly causes the mouth of the container to move toward the positioning rod, so that the positioning rod abuts against the mouth of the container and is difficult to insert. When the positioning rod abuts against the mouth of the container, the container pushes the floating cone block through the positioning rod to overcome the elastic force of the floating elastic member and move away from the floating cone hole, so that the matching state of the floating cone block and the floating cone hole changes from a plug-in matching state to a clearance matching state. After changing to a clearance matching state, the swing of the floating cone block and the positioning rod is not easily limited by the inner wall of the floating cone hole, and the degree of freedom of the floating cone block increases with the increase of the deviation, thereby allowing the positioning rod to deflect its own axis and slide along the inner wall of the bottle mouth, and finally plug-fit to the bottle mouth, which is beneficial to ensure the plug-in accuracy and reduce the situation where the positioning rod abuts against the bottle mouth and causes damage to the bottle mouth; 3. After the bottle mouth of the container is plugged into the positioning rod, the transfer assembly continues to move the container in the same direction, so that the floating cone block overcomes the elastic force of the floating elastic member and moves away from the floating cone hole until the rotating locking block is plugged into the rotating locking groove, so that the floating cone block, the positioning rod and the positioning cone barrel will rotate at the same time under the action of the rotating drive member, thereby facilitating the precise control of the rotation angle of the container, thereby ensuring the accuracy of the container pattern position and clarity during the silk screen printing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is an overall schematic diagram of the positioning component, the transfer component and the fixing component of the embodiment of the present application.

[0031] Figure 2 It is an overall schematic diagram of the transfer component of the embodiment of the present application.

[0032] Figure 3 It is the first overall schematic diagram of the positioning component and the fixing component of the embodiment of the present application.

[0033] Figure 4It is a second overall schematic diagram of the positioning component and the fixing component of the embodiment of the present application.

[0034] Figure 5 It is an overall schematic diagram of the positioning component of an embodiment of the present application.

[0035] Figure 6 This is the first exploded schematic diagram of the positioning component of the embodiment of the present application.

[0036] Figure 7 It is a second exploded schematic diagram of the positioning component of the embodiment of the present application.

[0037] Figure 8 It is a cross-sectional schematic diagram of the positioning component of the embodiment of the present application.

[0038] Explanation of the accompanying drawings: 1. Transfer assembly; 11. Conveyor belt; 12. Container clamp; 13. Vertical drive member; 131. Vertical slide; 14. Horizontal drive member; 141. Horizontal slide; 15. Flip drive member; 2. Fixed assembly; 21. Bottle bottom push plate; 22. Push plate drive member; 221. Fixed slide; 3. Positioning assembly; 31. Positioning cylinder seat; 311. Sliding chamber; 32. Floating cone block; 321. Abutment ring; 33. Floating elastic member; 34. Positioning rod; 341. Plug connector; 35. Floating ring; 351. Floating cone hole; 36. Rotation locking ring; 361. Rotation locking groove; 37. Rotation locking block; 4. Rotation drive member; 5. Posture detector. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-8 This application is described in further detail.

[0040] The present application embodiment discloses a screen printing machine for special-shaped containers. Figure 1 The special-shaped container screen printing machine includes a frame, a transfer component 1, a fixing component 2 and a positioning component 3, and the transfer component 1, the fixing component 2 and the positioning component 3 are all arranged on the frame.

[0041] Reference Figure 1 The transfer assembly 1 includes a conveyor belt 11, a container clamp 12, a vertical drive member 13, a horizontal drive member 14 and a flip drive member 15. The conveyor belt 11 is used to horizontally convey the container to be screen-printed. The container is pear-shaped, and the diameter of the mouth of the container is larger than the diameter of the bottle body. The material of the container can be glass, resin, porcelain, pottery, stone and / or metal. Specifically, in the embodiment of the present application, the conveyor belt 11 is used to convey containers whose material is glass. In addition, a rejection cylinder and a container sensor (not shown in the figure) are fixedly installed at the output end of the conveyor belt 11. When the container sensor detects that there are defects such as cracks or pitting on the surface of the container, the rejection cylinder extends the output rod to horizontally push the container away from the conveyor belt 11, so that the container after screen printing is not prone to obvious appearance defects.

[0042] Reference Figure 1 and Figure 2 The container clamp 12 is used to fix the container conveyed by the conveyor belt 11, the vertical driving member 13 is used to drive the container clamp 12 to move vertically, the horizontal driving member 14 is used to drive the container clamp 12 to move horizontally, and the flip driving member 15 is used to drive the container clamp 12 to rotate. Therefore, after the container clamp 12 fixes the container, the vertical driving member 13, the horizontal driving member 14 and the flip driving member 15 are used to adjust the posture of the container, so that containers of various types and shapes can be adjusted to a suitable posture to facilitate subsequent positioning and fixing.

[0043] Reference Figure 2 Specifically, in the embodiment of the present application: the type of the vertical driving member 13 is a linear cylinder, and the vertical driving member 13 is fixedly mounted on the frame. The output rod of the vertical driving member 13 is fixedly mounted with a vertical slide 131, and the vertical slide 131 is slidably matched with the frame in the vertical direction through a slide rail. The type of the horizontal driving member 14 is a motor, and the horizontal driving member 14 is fixedly mounted on the vertical slide 131. In addition, in the present application, the type of the motor can be preferably a servo motor to ensure the smooth operation of the equipment and reduce the noise generated during the operation, which will not be described later. The output shaft of the horizontal driving member 14 is vertically arranged, and the horizontal driving member 14 is installed with a horizontal slide 141 through a synchronous belt and two synchronous wheels. The horizontal slide 141 is fixedly mounted on the synchronous belt so that the horizontal slide 141 can be driven to move horizontally by the horizontal driving member 14. The type of the flip driving member 15 is a motor, and the flip driving member 15 is fixedly mounted on the horizontal slide 141. A rotary damper is fixedly installed at the bottom of the horizontal slide 141, and the output shaft of the flip driver 15 is arranged horizontally. The flip driver 15 is connected to the output shaft of the rotary damper through a synchronous belt and two synchronous wheels, so that the rotation of the flip driver 15 is smoother through the rotary damper. The container clamp 12 is a finger cylinder, and the container clamp 12 is fixedly installed on the output shaft of the rotary damper, so that the container clamp 12 is driven to rotate through the flip driver 15 and the rotary damper. The two clamping claws of the container clamp 12 are used to fix the clamping jig (not shown in the figure), and the inner side of the clamping jig is arranged corresponding to the type and shape of the container, so that the container is fixed by clamping the surface of the container through the inner side of the clamping jig.

[0044] Reference Figure 3 and Figure 4 The fixing assembly 2 includes a bottle bottom push plate 21 and a push plate driving member 22. The bottle bottom push plate 21 is used to abut against the bottle bottom of the container, and the push plate driving member 22 is used to drive the bottle bottom push plate 21 to move horizontally, so as to improve the stability of the container during the screen printing process by abutting against the bottle bottom.

[0045] Specifically, in the embodiment of the present application: the push plate driving member 22 is a cylinder, and the push plate driving member 22 is fixedly mounted on the frame, and the output rod of the push plate driving member 22 is arranged horizontally. The output rod of the push plate driving member 22 is fixedly mounted with a fixed slide 221, and the fixed slide 221 is slidably matched with the frame in the horizontal direction through a slide rail. The bottle bottom push plate 21 is arranged in a circular shape, and the bottle bottom push plate 21 is rotatably matched with the fixed slide 221, so that the bottle bottom push plate 21 can be moved horizontally by the push plate driving member 22.

[0046] Reference Figure 4 and Figure 5 The frame is fixedly mounted with a rotating drive member 4, which is a motor, and the output shaft of the rotating drive member 4 is horizontally facing the bottle bottom push plate 21; the positioning assembly 3 includes a positioning cylinder seat 31, a floating cone block 32, a floating elastic member 33 and a positioning rod 34. The positioning cylinder seat 31 is coaxially fixedly mounted on the output shaft of the rotating drive member 4, so that the rotating drive member 4 drives the driving cylinder seat to rotate.

[0047] Reference Figures 5 to 8 The interior of the positioning cylinder seat 31 is provided with a sliding chamber 311, and the sliding chamber 311 extends in the horizontal direction. The floating cone block 32 is slidingly matched in the sliding chamber 311, and the floating cone block 32 is gap-matched with the inner wall of the sliding chamber 311, so that during the sliding process of the floating cone block 32, the floating cone block 32 deflects in the sliding chamber 311 and changes its own orientation. The positioning cylinder seat 31 is fixedly mounted with a floating ring 35, and the floating ring 35 is arranged away from the rotating drive member 4.

[0048] The floating ring 35 is provided with a floating cone hole 351, the inner wall of the floating cone hole 351 is straight, and the floating cone hole 351 is provided with an enlarged opening and a reduced opening, and the diameter of the enlarged opening of the floating cone hole 351 is larger than the diameter of the reduced opening; the floating cone block 32 is plugged into the floating cone hole 351, and the outer wall of the floating cone block 32 is straight. The floating cone block 32 is provided with an enlarged end and a reduced end, and the diameter of the enlarged end of the floating cone block 32 is larger than the diameter of the reduced end, and the enlarged end of the floating cone block 32 is adapted to the enlarged opening of the floating cone hole 351, and the reduced end of the floating cone block 32 is adapted to the reduced opening of the floating cone hole 351. In addition, specifically in the embodiment of the present application, the floating cone hole 351 and the floating cone block 32 are both arranged in a truncated cone shape, so that after the floating cone block 32 is plugged into the floating cone hole 351, the outer wall of the floating cone block 32 is closely fitted to the inner wall of the floating cone hole 351.

[0049] The two sides of the floating elastic member 33 are respectively fixedly mounted on the inner wall of the sliding chamber 311 and the floating cone block 32, so that the floating cone block 32 is tightly fitted to the inner wall of the floating cone hole 351 by the elastic force of the floating elastic member 33, so that the floating cone block 32 is not easy to shake in the floating cone hole 351. In the embodiment of the present application, the type of the floating elastic member 33 is a linear spring, and the axis of the floating elastic member 33 is arranged along the extension direction of the sliding chamber 311.

[0050] The positioning rod 34 is used to be plugged into the mouth of the container. The shape of the positioning rod 34 can be set according to the shape of the mouth of the bottle, so that the container is firmly fixed to the positioning rod 34, and the container is fixed by the positioning rod 34. The positioning rod 34 is fixedly installed on the reduced end of the floating cone block 32 through a connecting rod, and the positioning rod 34 is located outside the sliding chamber 311 and the floating cone hole 351. Specifically, in the embodiment of the present application, in order to improve the applicability of the positioning rod 34, the type of the positioning rod 34 is a pneumatic expansion shaft, so that after the positioning rod 34 is inserted into the mouth of the bottle, the positioning rod 34 expands its own diameter and fits tightly against the inner wall of the mouth of the bottle, thereby fixing containers of different specifications. In addition, the positioning rod 34 is fixedly installed with a plug connector 341, and the surface of the plug connector 341 is arranged in an arc shape, so that when the positioning rod 34 is inserted into the bottle mouth of the container, the plug connector 341 passes through the arc surface, and in the embodiment of the present application, it is arranged in a spherical surface, so that the positioning rod 34 can be smoothly inserted into the bottle mouth, thereby reducing the friction between the positioning rod 34 and the bottle mouth.

[0051] Reference Figure 7 and Figure 8 A rotation locking ring 36 is installed inside the sliding chamber 311. The rotation locking ring 36 is penetrated by a rotation locking groove 361, and the rotation locking groove 361 faces the enlarged end of the floating cone block 32. The inner wall of the rotation locking groove 361 is provided with six groove body locking planes, and the six groove body locking planes make the rotation locking groove 361 hexagonal. The enlarged end of the floating cone block 32 is fixedly installed with a rotation locking block 37, and the rotation locking block 37 is plugged into the rotation locking groove 361. The outer wall of the rotation locking block 37 is provided with six block body locking planes, and the six block body locking planes make the rotation locking block 37 hexagonal, so that after the rotation locking block 37 is plugged into the rotation locking groove 361, the six block body locking planes are respectively pressed against each groove body locking plane, and the positioning cylinder seat 31, the floating cone block 32 and the positioning rod 34 are rotated at the same time under the action of the rotation driving member 4, thereby driving the container fixedly set on the positioning rod 34 to rotate, so as to print the surface of the container from multiple angles.

[0052] The floating cone block 32 is fixedly mounted with an abutment ring 321, which is circular and has a diameter greater than the diameter of the mouth of the container. When the positioning rod 34 is in a state of being plugged into the mouth of the container, the abutment ring 321 abuts against the mouth of the container, so that the container is more stably fixed to the positioning rod 34, and the container is convenient for pushing the rotation locking block 37 to be plugged into the rotation locking groove 361 by abutting against the abutment ring 321, so that after the container is accurately positioned, the rotation locking is completed at the same time during the fixing process, reducing the occurrence of the situation where the rotation angle of the positioning rod 34 is not synchronized with the rotation drive member 4.

[0053] Reference Figure 1 , the frame is installed with a posture detector 5, which is used to detect whether the axis of the positioning rod 34 is in an accurate state or a deviation state. The detection result of the posture detector 5 is that when the axis of the positioning rod 34 is in an accurate state, the axis of the positioning rod 34 coincides with the axis of the bottle mouth of the container; the detection result of the posture detector 5 is that when the axis of the positioning rod 34 is in a deviation state, the axis of the positioning rod 34 intersects, is parallel to, or is not in the same plane as the axis of the bottle mouth of the container. The posture detector 5 is electrically connected to the vertical drive member 13, the horizontal drive member 14, and the flip drive member 15 of the transfer assembly 1, so that based on the detection result of the posture detector 5, the posture of the container fixedly set on the container clamp 12 is adjusted by the vertical drive member 13, the horizontal drive member 14, and the flip drive member 15.

[0054] Specifically, in the embodiment of the present application, the type of the posture detector 5 is a visual camera. The posture detector 5 compares the axis of the positioning rod 34 with a preset axis state to obtain a result that the axis of the positioning rod 34 is in an accurate state or a deviation state.

[0055] The implementation principle of a screen printing machine for special-shaped containers in the embodiment of the present application is as follows: S1, the conveyor belt 11 conveys the container to be screen-printed to the output end.

[0056] S2, the container clamp 12 clamps and fixes the container at the output end of the conveyor belt 11, and then transfers the container to between the positioning rod 34 and the bottle bottom push plate 21 through the vertical driving member 13, the horizontal driving member 14 and the flip driving member 15. Moreover, when the container is between the positioning rod 34 and the bottle bottom push plate 21, the bottle mouth is horizontally facing the positioning rod 34, and the bottle bottom is horizontally facing the bottle bottom push plate 21.

[0057] S3, the horizontal driving member 14 drives the bottle mouth of the container to move toward the positioning rod 34, until the positioning rod 34 is plugged into the bottle mouth through the plug connector 341 and abuts against the abutting ring 321.

[0058] When the container is transferred to between the positioning rod 34 and the bottle bottom push plate 21 in the expected posture, the floating elastic member 33 makes the floating cone block 32 fit tightly against the floating cone surface, so that the positioning rod 34 is also inserted into the bottle mouth in the expected posture, reducing the situation where the positioning rod 34 presses against the bottle mouth and causes damage to the bottle mouth.

[0059] When the container is not transferred to the position between the positioning rod 34 and the bottle bottom push plate 21 in the expected posture, the plug connector 341 of the positioning rod 34 first abuts against the bottle mouth and pushes the floating cone block 32 to move in the direction away from the floating cone groove, so that the fitting state of the floating cone block 32 and the floating cone hole 351 is changed from a plug-in fitting state to a clearance fitting state, thereby allowing the axis of the floating cone block 32 and the positioning rod 34 to autonomously adapt to the current posture of the container and allowing the positioning rod 34 to be smoothly inserted into the bottle mouth, thereby further reducing the situation where the positioning rod 34 abuts against the bottle mouth and causes damage to the bottle mouth.

[0060] In addition, when the bottle mouth moves toward the positioning rod 34, the posture detector 5 detects the axial posture of the positioning rod 34 in real time, and feeds back the signal to the vertical drive 13, the horizontal drive 14 and the flip drive 15, so that the posture of the container is adjusted in real time through the vertical drive 13, the horizontal drive 14 and the flip drive 15.

[0061] S4, the positioning rod 34 extends out of the pneumatic key and expands its own diameter until the pneumatic key of the positioning rod 34 is tightly fitted against the inner wall of the bottle mouth, so that the container is fixedly plugged into the positioning rod 34.

[0062] S5. The horizontal driving member 14 continues to drive the container to move horizontally, and pushes the floating cone block 32 and the rotation locking block 37 toward the rotation locking ring 36 through the container and the positioning rod 34 until the rotation locking block 37 is inserted and fitted into the rotation locking groove 361.

[0063] S6. The push plate driving member 22 retracts its output rod, so that the bottle bottom push plate 21 is tightly fitted against the bottle bottom.

[0064] S6. The container clamp 12 releases the container, so that the container is firmly and accurately fixed between the positioning rod 34 and the bottle bottom push plate 21.

[0065] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A screen printing machine for special-shaped containers, characterized by: It comprises a frame, a positioning component (3) and a transfer component (1); The positioning component (3) and the transfer component (1) are both arranged on a frame; The positioning assembly (3) comprises a positioning cylinder seat (31), a floating cone block (32), a floating elastic member (33) and a positioning rod (34); a sliding chamber (311) is provided inside the positioning cylinder seat (31); the floating cone block (32) is slidingly matched in the sliding chamber (311), and the floating cone block (32) is clearance-matched in the inner wall of the sliding chamber (311); two sides of the floating elastic member (33) are respectively mounted on the positioning cylinder seat (31) and the floating cone block (32); the positioning rod (34) is mounted on the floating cone block (32); and the positioning rod (34) is used for plugging and matching with the bottle mouth of the container; The positioning cylinder seat (31) is provided with a floating ring (35), the floating ring (35) is penetrated by a floating cone hole (351), the floating cone hole (351) is connected to the sliding chamber (311), and the floating cone block (32) is plugged into and matched with the floating cone hole (351); The floating tapered hole (351) is provided with an enlarged opening and a reduced opening, and the diameter of the enlarged opening of the floating tapered hole (351) is larger than the diameter of the reduced opening; The floating cone block (32) is provided with an enlarged end and a reduced end, the enlarged end of the floating cone block (32) is adapted to the enlarged opening of the floating cone hole (351), and the reduced end of the floating cone block (32) is adapted to the reduced opening of the floating cone hole (351); The transfer assembly (1) is used to move the mouth of the container toward the positioning rod (34).

2. The screen printing machine for special-shaped containers according to claim 1, characterized in that: The inner wall of the floating cone hole (351) is arranged straight, and the outer wall of the floating cone block (32) is arranged straight.

3. The screen printing machine for special-shaped containers according to claim 1, characterized in that: The frame is equipped with a rotating drive member (4), and the rotating drive member (4) is used to drive the positioning rod member (34) to rotate.

4. The screen printing machine for special-shaped containers according to claim 3, characterized in that: A rotation locking ring (36) is installed inside the sliding chamber (311), and the rotation locking ring (36) is provided with a rotation locking groove (361), and the rotation locking groove (361) faces the enlarged end of the floating cone block (32); A rotation locking block (37) is installed at the enlarged end of the floating cone block (32), and the rotation locking block (37) is plugged into and matched with the rotation locking groove (361); The inner wall of the rotation locking groove (361) is provided with a groove body locking plane, and the outer wall of the rotation locking block (37) is provided with a block body locking plane.

5. A screen printing machine for special-shaped containers according to claim 3 or 4, characterized in that: The floating cone block (32) is provided with an abutment ring (321), the diameter of which is greater than the diameter of the mouth of the container. When the positioning rod (34) is in a state of being inserted and fitted with the mouth of the container, the abutment ring (321) abuts and fits with the mouth of the container.

6. The screen printing machine for special-shaped containers according to claim 1, characterized in that: The positioning rod (34) is an expansion shaft. When the positioning rod (34) is in a state of being plugged into and fitted into the bottle mouth of a container, the diameter of the positioning rod (34) increases.

7. The screen printing machine for special-shaped containers according to claim 1, characterized in that: It also includes a fixing assembly (2), wherein the fixing assembly (2) includes a bottle bottom push plate (21) and a push plate driving member (22); The bottle bottom push plate (21) is used to abut against the bottle bottom of the container, and the push plate driving member (22) is used to drive the bottle bottom push plate (21) to approach or move away from the positioning rod (34).

8. The screen printing machine for special-shaped containers according to claim 1, characterized in that: The transfer assembly (1) comprises a conveyor belt (11), a container clamp (12), a vertical drive member (13), a horizontal drive member (14) and a flip drive member (15); The conveyor belt (11) is used to horizontally convey containers to be screen-printed, the container clamp (12) is used to fix the containers conveyed by the conveyor belt (11), the vertical driving member (13) is used to drive the container clamp (12) to move vertically, the horizontal driving member (14) is used to drive the container clamp (12) to move horizontally, and the flip driving member (15) is used to drive the container clamp (12) to rotate.

9. The screen printing machine for special-shaped containers according to claim 8, characterized in that: The frame is equipped with a posture detector (5), and the posture detector (5) is used to detect whether the axis of the positioning rod (34) is in an accurate state or a deviation state; The detection result of the posture detector (5) is that when the axis of the positioning rod (34) is in an accurate state, the axis of the positioning rod (34) coincides with the axis of the bottle mouth of the container; The detection result of the posture detector (5) is that when the axis of the positioning rod (34) is in a deviation state, the axis of the positioning rod (34) intersects, is parallel to, or is not in the same plane as the axis of the bottle mouth of the container; The posture detector (5) is electrically connected to the transfer component (1).

10. The screen printing machine for special-shaped containers according to claim 1, characterized in that: The positioning rod (34) is provided with a plug connector (341), and the surface of the plug connector (341) is arranged in an arc shape.

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