Tank cover and can body hinging needle-threading connecting device

Abstract

The invention relates to a shaft needle threading device between a tank cover and a tank body in the field of mechanical automatic assembly. The device is characterized by comprising a second rack, a second rod frame, a collision block rod and an insertion rod, the second rack is provided with a second rotating shaft, the second rod frame is provided with a swing frame, a tank cover top frame and a second rod frame roller, the swing frame is provided with the collision block rod and the insertion rod, the collision block rod is provided with a collision block plate capable of transversely moving, and the insertion rod is provided with a first rotating shaft and a second rotating shaft. The second rotating shaft is provided with a collision block rod cam, an insertion rod cam and a second rod frame cam. The inserting rod is inserted between the collision block plate and the collision block rod to drive the collision block rod to move to push the shaft needle arranged in the iron can, so that a can cover and can body hinge needle penetrating connecting device mounted on a hinge structure between a can cover and a can body can be achieved; the assembling problem that an assembling worker penetrates a fine shaft needle into the space between a can cover and a can body and enables the two protruding ends of the installed shaft needle to be placed in an iron can is solved.

Description

Technical Field

[0001] The invention relates to an axis needle threading device between a can cover and a can body in the field of mechanical automatic assembly. Background Art

[0002] A common tin can filled with candies is provided with a can lid, which is connected to the can body by a strong and durable pin to form a hinged structure, so that the user can open the can and take out the candies easily, and can also close the can tightly after taking out the candies. In order to prevent the user from being scratched by the tiny pin, the two protruding ends of the installed pin are placed inside the can, so the user can directly open the can lid from the opening of the can body, and close the can lid tightly at the opening of the can body after use. However, the tin can is small, and the hinged structure between the can lid and the can body is small, which makes it difficult for the assembly workers to insert the tiny pin between the can lid and the can body and place the two protruding ends of the installed pin inside the tin can during the production process. Summary of the invention

[0003] The present invention inserts an insertion rod with an inclined surface between the impact block plate and the impact block rod to drive the impact block rod to move and push the pin placed in the iron can, so that the iron can completes the can cover and can body hinged needle connection device in which the hinged structure between the can cover and the can body is installed, thereby solving the assembly problem of the assembler inserting the tiny pin between the can cover and the can body and placing the protruding two ends of the installed pin in the iron can.

[0004] The present invention discloses a technical solution, a can cover can body hinged needle threading connection device, comprising a second frame, characterized in that the second frame is equipped with a second rod frame that can move up and down on the second frame, and a second cam shaft that can rotate on the second frame, the second rod frame is equipped with a collision block rod and an insertion rod, the collision block rod and the insertion rod can both swing on the second rod frame, and the swinging direction of the collision block rod is consistent with that of the insertion rod, the collision block rod is movably equipped with a collision block plate, a collision block rebound device is installed between the collision block plate and the collision block rod, the second rotating shaft is fixedly equipped with a collision block rod cam, an insertion rod cam, and a second rod frame cam, the collision block rod cam contacts the collision block rod, the insertion rod cam contacts the insertion rod, the second rod frame cam contacts the second rod frame, a collision block rod rebound device is installed between the collision block rod and the second frame, an insertion rod rebound device is installed between the insertion rod and the second frame, and a rod frame rebound device is installed between the second rod frame and the second frame. The rod frame rebound device can make the second frame rebound upward, ensuring that the second rod frame can rise and reset after the second rod frame cam no longer drives the second rod frame to descend. The second rod frame is provided with a second rod frame roller, and the contact between the second rod frame cam and the second rod frame is achieved by the contact between the second rod frame cam and the second rod frame roller.

[0005] The iron can subjected to the needle threading process by this device is composed of a hinged structure formed by a can cover and a can body with a round rod-shaped axis pin inserted between them, and the can cover is provided with a can cover axis pin hole, and the can body is provided with two can body axis pin holes on the side facing the can cover, the two can body axis pin holes are distributed on the side of the can body, one on the left and one on the right, and an axis pin hole wall concave toward the inner side of the can body is provided between the two can body axis pin holes, and the axis pin hole wall cooperates with the can cover axis pin hole.

[0006] A vertically movable guide rail slider device is installed between the second frame and the second rod frame, so that the second rod frame can move up and down. A gap is left between the collision block plate and the collision block rod in a natural state, and the rebound of the collision block rod installed in the gap can be a spring.

[0007] The rotation axes of the insert rod and the impact block rod in the swinging motion coincide with each other, and the rotation axes of the insert rod and the impact block rod in the swinging motion are perpendicular to the up-and-down motion direction of the second rod frame.

[0008] Preferably, the collision block rod is provided with a rod sliding hole, the middle end of the collision block plate is installed in the rod sliding hole, and the left and right sides are exposed outside the rod sliding hole, one end of the collision block plate exposed from the rod sliding hole is provided with a collision block plate rebound boss, and the other end of the collision block plate exposed from the rod sliding hole is provided with a collision block plate insertion boss. The collision block plate insertion boss has an inclined surface on one side facing the collision block rod, and a smaller groove for inserting the insertion rod is formed between the inclined surface and the collision block rod, and the inclined surface cooperates with the insertion rod, so that when the insertion rod swings toward the collision block plate and the collision block rod, it can ensure that the insertion rod is smoothly inserted between the collision block plate and the collision block rod, thereby driving the collision block plate to move on the collision block rod.

[0009] Preferably, the collision block rod is provided with a can body top groove in the direction toward the second rod frame, and the second rod frame is provided with a top frame groove, and the top frame groove faces the collision block rod. When the axial needle is threading, the can body top groove presses against the can body axial needle hole, and the top frame groove presses against the can cover axial needle hole, thereby further fixing the can body and the can cover to ensure the threading work.

[0010] Preferably, a collision block protrusion is provided on one of the side surfaces of the collision block plate. The side of the collision block protrusion facing the can body axis pin hole is a flat surface, thereby ensuring that the collision block protrusion can push the axis pin to pass the axis pin between the can cover axis pin hole and the can body axis pin hole during the needle threading process. The collision block protrusion is used to push the axis pin in the iron can to move it to a suitable final assembly position, and the collision block is provided on the side surface, and the collision block is a convex structure with a side similar to an arc surface, so that the collision block can hit the axis pin as close as possible to the inner side surface of the can body, thereby driving the axis pin to move.

[0011] Preferably, the second frame is provided with a rocker arm rebound frame, and the rocker arm rebound frame is surrounded by the second rod frame, and the block rod rebound rod and the insertion rod rebound rod are both installed on the rocker arm rebound frame. A rubber cushion rebound cap is installed at one end of the structure of the block rod rebound rod and the insertion rod rebound rod, and the rubber cushion rebound cap is tightly attached to the side of the block rod and the insertion rod. The main purpose of the block rod rebound rod and the insertion rod rebound rod is to reset the block rod and the insertion rod when the block rod cam and the insertion rod cam no longer act on the block rod and the insertion rod. The block rod cam and the block rod rebound rod respectively press against the front and rear ends of the block rod, and press against the block rod in a "clamping" state; the insertion rod cam and the insertion rod rebound rod respectively press against the front and rear ends of the insertion rod, and press against the insertion rod in a "clamping" state.

[0012] The second rod frame cam is a shape composed of a half semicircular arc and a half inwardly concave shape. The initial position of the second rod frame roller is located at the concave part of the second rod frame cam. When the second rod frame cam rotates, the second rod frame will be pushed down by the second rod frame roller to accelerate the second rod frame, push the second rod frame down to the lowest point, and then let the second rod frame rest at the lowest point. Then the second rod frame cam rotates until it no longer presses against the second rod frame. Under the action of the rebound device on the second rod frame, the second rod frame actively presses against the second rod frame cam, so that the second rod frame is accelerated to be pushed up to the highest point and returns to the initial position.

[0013] The shape of the impact rod cam is mainly composed of two arcs of different diameters, wherein the transition surface between the two arcs is an arc surface. The initial position of the impact rod is on one end of the arc with a smaller diameter of the impact rod cam. When the impact rod cam rotates to the end of the arc with a larger diameter and pushes the impact rod tightly, under the action of the impact rod rebound rod, the impact rod swings forward at the upper end and backward at the lower end, so that the top groove of the can body is close to the pinhole of the can body axis. When the insertion rod moves to be inserted between the impact rod and the impact plate, and the needle is threaded, the impact rod cam rotates, causing the impact rod to swing backward at the upper end and forward at the lower end. At this time, the impact rod is located on the end face of the arc with a smaller diameter of the impact rod cam, and the impact rod returns to the initial position.

[0014] The shape of the plunger cam is mainly composed of two arcs of different diameters, and the end face area of ​​the arc with a larger diameter is smaller, wherein the transition surface between the two arcs is an arc surface. The initial position of the plunger is on one end of the arc with a smaller diameter of the plunger cam. When the plunger cam rotates to the end of the arc with a larger diameter and pushes the plunger tightly, the top groove of the can body on the impact block rod is close to the pinhole of the can body axis. Under the action of the plunger rebound rod, the plunger makes a swinging motion with its upper end forward and its lower end backward, so that the plunger is inserted between the impact block rod and the impact block plate to complete the needle threading. Then the plunger cam continues to rotate, making the plunger make a swinging motion with its upper end backward and its lower end forward. At this time, the plunger is located on the end face of the arc with a smaller diameter of the plunger cam, and the plunger returns to its initial position.

[0015] Compared with the prior art, the can cover and can body hinged needle-threading connection device of the present invention, the impact block rod places the impact block plate into the can mouth of the iron can body, and the insertion rod is inserted between the impact block plate and the impact block rod to drive the impact block plate to move, so that the impact block can directly push the can body in the can cover, allowing the assembly worker to easily insert the small axis pin between the can cover and the can body to complete the installation of the hinged structure between the can cover and the can body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an exploded view of the can cover and can body hinged needle connection device of the present invention.

[0017] Figure 2 It is a three-dimensional view of the second frame 11 of the can cover and can body hinged needle connection device of the present invention.

[0018] Figure 3 It is a stereoscopic view of the collision block plate 31 of the can cover and can body hinged needle connection device of the present invention.

[0019] Figure 4 It is a stereoscopic view of the collision block rod 3 of the can cover and can body hinged needle connection device of the present invention.

[0020] Figure 5 It is a three-dimensional view of the impact block rod 3 with the impact block plate 31 installed in the can cover and can body hinged needle connection device of the present invention from another direction.

[0021] Figure 6 It is a stereoscopic view of the insertion rod 4 of the can cover and can body hinged needle connection device of the present invention.

[0022] Figure 7 It is a combined diagram of the can cover and can body hinged needle connection device of the present invention.

[0023] In the figure: the second frame 11, the second cam shaft 12, the impact block rod cam 13, the insertion rod cam 14, the rod frame cam 15, the rocker arm rebound frame 16, the impact block rod rebound rod 17, the insertion rod rebound rod 18, the second rod frame 2, the rod frame roller 21, the top frame groove 22, the impact block rod 3, the impact block plate 31, the rod sliding hole 32, the impact block plate rebound boss 33, the impact block plate insertion boss 34, the can body top groove 35, the impact block boss 36, the insertion rod 4, the can body 5, and the second needle threading motor 6. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] Reference Figure 1-Figure 7The second needle threading device for the can body of the present invention comprises a second frame 11, the second frame 11 is provided with a can cover and can body frame, the can cover and can body frame is provided with a can body axis pinhole, the second frame 11 is provided with a second rod frame 2 and a second cam shaft 12, the second rod frame 2 is provided with a collision block rod 3 and an insertion rod 4, and the swing direction of the collision block rod 3 is consistent with that of the insertion rod 4, the collision block rod 3 is movably provided with a collision block plate 31, and the left and right sides of the collision block plate 31 are respectively provided with a collision block plate rebound boss 33 and a collision block plate insertion boss 34, the A block rebound device is installed between the block plate 31 and the block rod 3. A block convex 34 is provided on one side of the block plate 31. The second cam shaft 12 is fixedly installed with a block rod cam 13, an insertion rod cam 14, and a second rod frame cam 15. The block rod cam 13 contacts the block rod 3, the insertion rod cam 14 contacts the insertion rod 4, the second rod frame cam 15 contacts the second rod frame 2, and the swing arm rebound frame 16 surrounds the second rod frame 2. The block rod rebound rod 17 and the insertion rod rebound rod 18 are both installed on the swing arm rebound frame 16. A pulley is installed between the second needle threading motor 6 and the second cam shaft 12, and the belt drive is used to give the second cam shaft 12 a rotational force when the second needle threading motor 6 is working and rotating.

[0026] The initial positions of the components of the device are as follows: the second rod frame 2 is located at the uppermost end of the motion track, the collision block rod 3 and the insertion rod 4 are both tilted, and the inclination angle of the insertion rod 4 is larger than that of the collision block rod 3, and the lower end of the insertion rod 4 is located on the outer edge of the collision block plate 31, that is, at this time, the lower end of the insertion rod 4 is not placed between the collision block plate insertion and pushing boss 34 and the collision block rod 3. The contact point between the rod frame roller 21 and the rod frame cam 15 is closest to the rotation axis of the second cam shaft 12, the contact point between the collision block rod 3 and the collision block rod cam 13 is closest to the rotation axis of the second cam shaft 12, and the contact point between the insertion rod 4 and the insertion rod cam 14 is closest to the rotation axis of the second cam shaft 12.

[0027] The following is a specific implementation method of the one-time can needle insertion process.

[0028] First, the worker inserts the pin with the axis into the pin hole of the can cover, and one end of the pin is exposed from the pin hole of the can cover, and the other end is completely placed in the pin hole of the can cover. Then the worker inserts the end of the pin exposed from the pin hole of the can cover into the pin hole of the can body 5, and places the iron can in the can cover and body rack in front of the second rack 11, completing the preparation work.

[0029] The first step is that the second rod frame 2 descends to drive the impact rod 3, the impact plate 31, and the insertion rod 4 to descend and be placed in the can mouth of the can body 5: the second needle threading motor 6 works, and the belt connection between the second needle threading motor 6 and the second cam shaft 12 makes the rotation of the second needle threading motor 6 drive the second cam shaft 12 to rotate, driving the impact rod cam 13, the insertion rod cam 14, and the second rod frame cam 15 installed on the second cam shaft 12 to rotate. The rotation of the second rod frame cam 15 makes the contact point with the rod frame roller 21 The distance from the rotation axis of the second cam shaft 12 becomes larger, causing the second rod frame cam 15 to push the second rod frame 2 downward, causing the impact rod 3, the impact plate 31, and the insertion rod 4 to descend and enter the can mouth of the can body 5.

[0030] The second step is that the impact block rod 3 drives the impact block plate 31 to swing until the impact block protrusion 34 is located on the edge of the axis pin, and the top groove 35 of the can body is attached to the side of the axis pin hole of the can body: the rotation of the second cam shaft 12 causes the impact block rod cam 13, the insertion rod cam 14, and the second rod frame cam 15 to continue to rotate. When the second rod frame cam 15 rotates to the point where the contact point with the rod frame roller 21 is at the maximum distance from the rotation axis of the second cam shaft 12, the second rod frame 2 is pushed down to the lowermost end of its motion trajectory and then remains relatively stationary. The collision block rod cam 13 rotates so that the contact point with the collision block rod 3 becomes the largest from the rotation axis of the second cam shaft 12, so that the collision block rod 3 makes a swinging motion with its lower end constantly approaching the can body axis pin hole, and finally the can body top groove 35 hits the can body axis pin hole and pushes the can body 5 to the can cover axis pin hole matched with the can body axis pin hole and is pushed to the top frame groove 22 opened on the second rod frame 2, thereby fixing the can cover axis pin hole and the can body axis pin hole relatively to ensure smooth needle threading in the needle threading process. At this time, the collision block protrusion 36 is facing one of the axis pins on the lateral end surface.

[0031] The third step is that the insertion rod 4 swings between the collision block plate insertion and pushing boss 34 and the collision block rod 3, thereby driving the collision block plate 31 to push, so that the collision block boss 34 pushes the shaft pin to pass between the can cover shaft pin hole and the can body shaft pin hole: the second cam shaft 12 continues to rotate, so that the collision block rod cam 13, the insertion rod cam 14, and the second rod frame cam 15 continue to rotate. At this time, the contact point between the second rod frame cam 15 and the rod frame roller 21 is still at the maximum distance from the rotation axis of the second cam shaft 12, so that the second rod frame 2 continues to maintain a relatively static state, and the contact point between the collision block rod cam 13 and the collision block rod 3 is still at the maximum distance from the rotation axis of the second cam shaft 12, so that the collision block rod 3 is in a relatively static state. In this state, the insertion rod cam 14 rotates first so that the distance between the contact point with the insertion rod 4 and the rotation axis of the second cam shaft 12 suddenly changes from the minimum to the maximum, so that the insertion rod 4 makes a swinging motion in the direction of constantly approaching the collision block plate 31, until the lower end of the insertion rod 4 with a sloped structure is directly inserted between the collision block plate insertion and pushing boss 34 and the collision block rod 3, and under the action of the sloped structure at the lower end of the insertion rod 4, the collision block plate 31 makes the collision block plate insertion and pushing boss 34 move away from the collision block rod 3, causing the collision block boss 36 to hit the end face of the shaft pin, driving the shaft pin to penetrate the can cover shaft pin hole and the can body shaft pin hole together, so that the can cover and the can body form a hinged structure, and at this time, the collision block rebound device is pushed and compressed by the collision block plate rebound boss 33. Then, the insertion rod cam 14 rotates so that the distance between the contact point with the insertion rod 4 and the rotation axis of the second cam shaft 12 changes from the maximum to the minimum, and the insertion rod cam 14 removes the active pushing effect on the insertion rod 4. At this time, the insertion rod rebound rod 18 actively pushes the insertion rod 4 to make the insertion rod 4 stick to the insertion rod cam 14 again, so that the insertion rod 4 makes a swinging motion with its lower end away from the collision block plate 31, so that the collision block plate 31 can be pushed back to the collision block plate pushing boss 34 under the rebound action of the collision block rebound device and re-approach and stick to the side of the collision block rod 3.

[0032] The fourth step is to reset each component: the second cam shaft 12 continues to rotate, so that the block rod cam 13, the plug rod cam 14, and the second rod frame cam 15 continue to rotate. At this time, the distance between the contact point of the plug rod cam 14 and the plug rod 4 and the rotation axis of the second cam shaft 12 is still the smallest, so that the plug rod 4 continues to remain relatively static. The block rod cam 13 rotates so that the distance between the contact point with the block rod 3 and the rotation axis of the second cam shaft 12 gradually changes from the largest to the smallest. The block rod cam 13 no longer actively pushes the block rod 3. At this time, the block rod rebound rod 17 actively pushes the block rod 3 to make the block rod 3 stick to the block rod cam 13 again, so that the block rod 3 makes a swinging motion with its lower end away from the pinhole of the can body axis, and when the distance between the contact point of the block rod cam 13 and the block rod 3 and the rotation axis of the second cam shaft 12 returns to the smallest point, the block rod 3 returns to the initial position. The second rod frame cam 15 rotates so that the distance between the contact point with the second rod frame 2 and the rotation axis of the second cam shaft 12 changes from the maximum to the minimum. The second rod frame cam 15 no longer actively pushes the second rod frame 2 downward, and the second rod frame 2 is pulled back upward under the rebound action of the rod frame rebound device, and the rod frame roller 21 contacts the second rod frame cam 15 again, so that the second rod frame 2 can gradually return from the lower end of its motion trajectory to the upper end of the initial position along the side profile of the second rod frame cam 15, and drive the collision block rod 3, the collision block plate 31, and the insertion rod 4 to rise and separate from the can body 5. When the worker takes out the iron can with the needle threaded, the can needle threading process is completed.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A can cover and can body hinged needle connection device, comprising a second frame (11), characterized in that: The second frame (11) is provided with a second rod frame (2) capable of moving up and down on the second frame (11), and a second cam shaft (12) capable of rotating on the second frame (11); the second rod frame (2) is provided with a collision block rod (3) and an insertion rod (4); both the collision block rod (3) and the insertion rod (4) are capable of swinging on the second rod frame (2), and the swinging direction of the collision block rod (3) is consistent with that of the insertion rod (4); the collision block rod (3) is movably provided with a collision block plate (31); a collision block rebound device is provided between the collision block plate (31) and the collision block rod (3); the second shaft (1 2) A collision block rod cam (13), an insertion rod cam (14), and a second rod frame cam (15) are fixedly installed; the collision block rod cam (13) contacts the collision block rod (3), the insertion rod cam (14) contacts the insertion rod (4), the second rod frame cam (15) contacts the second rod frame (2), a collision block rod rebound device (17) is installed between the collision block rod (3) and the second frame (11), an insertion rod rebound device (18) is installed between the insertion rod (4) and the second frame (11), and a rod frame rebound device is installed between the second rod frame (2) and the second frame (11).

2. The can cover and can body hinged needle connection device according to claim 1, characterized in that: The collision block rod (3) is provided with a rod sliding hole (32), the middle end of the collision block plate (31) is installed in the rod sliding hole (32), and the left and right sides are exposed outside the rod sliding hole (32), one end of the collision block plate (31) exposed from the rod sliding hole (32) is provided with a collision block plate rebound boss (33), and the other end of the collision block plate (31) exposed from the rod sliding hole is provided with a collision block plate insertion boss (34).

3. The can cover and can body hinged needle connection device according to claim 1, characterized in that: The collision block rod (3) is provided with a tank body top groove (35) in the direction toward the second rod frame (2).

4. The can cover and can body hinged needle connection device according to claim 1, characterized in that: The second rod frame (2) is provided with a top frame groove (22), and the top frame groove (22) is directly opposite to the collision block rod (3).

5. The can cover and can body hinged needle connection device according to claim 1, characterized in that: A collision block protrusion (36) is provided on one of the side surfaces of the collision block plate (31).

6. The can cover and can body hinged needle connection device according to claim 1, characterized in that: The second frame (11) is provided with a swing rod rebound frame (16), the swing rod rebound frame (16) is surrounded by the second rod frame (2), and the collision block rod rebound rod (17) and the insertion rod rebound rod (18) are both installed on the swing rod rebound frame (16).

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