Push-and-pull integrated push-and-pull head

Abstract

The utility model discloses a push-and-pull integrated push-and-pull head, which comprises a driving chain and a plurality of delivery rollers, the delivery rollers are symmetrically arranged on two sides of the driving chain, delivery trays are arranged on the delivery rollers, a push-and-pull head is fixed on the driving chain, and the push-and-pull head is used for pushing or pulling the delivery trays; the push-and-pull head comprises a base and a push-and-pull hook, the base is in a frame shape, the push-and-pull hook penetrates through the base and is hinged to the base, the push-and-pull hook comprises a hook and a balancing weight which are fixed to each other, the weight of the side, close to the balancing weight, of the hinged position of the push-and-pull hook and the base is slightly larger than that of the side of the hook, and a limiting strip is arranged on the inner side of the hook. The limiting strip abuts against the base, so that the push-pull hook is kept horizontal in a conventional state, an arc-shaped block is fixed to the outer side of the hook, the side, close to the hook, of the push-pull hook can rotate downwards, and the push-pull hook device is simple in structure, good in performance, low in failure rate, novel in design and high in efficiency and is of a pure mechanical structure without other components.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for loading and unloading materials in workshops, and in particular to a push-pull integrated push-pull head. Background Technology

[0002] The push-pull head is the connecting component between the drive equipment and the conveyor tray. The drive equipment pulls or pushes the tray through the push-pull head. Push-pull heads are frequently used in loading and unloading materials and handling workpieces in the workshop.

[0003] In the existing workshop, some simple push-pull heads are manually connected by pins, while some push and pull heads are separate. The drive equipment is equipped with two sets of mechanisms for both push and pull heads, which is inconvenient to use and inefficient. When the automatic push-pull head switches between push and pull modes, it uses a steering mechanism, which has a complex structure and a high failure rate. These are the existing problems. Utility Model Content

[0004] To address the aforementioned shortcomings, this utility model provides a push-pull integrated push-pull head with a simple structure, good performance, a purely mechanical structure without other components, low failure rate, novel design, and high efficiency, thereby improving the existing problems.

[0005] This utility model is achieved through the following technical solution:

[0006] A push-pull integrated push-pull head includes a drive chain and several conveyor rollers, characterized in that: the conveyor rollers are symmetrically arranged on both sides of the drive chain, and a conveyor tray is provided on the conveyor roller; the push-pull head is fixed on the drive chain, and the push-pull head is used to push or pull the conveyor tray; the push-pull head includes a base and a push-pull hook, the base is frame-shaped, the push-pull hook passes through the base and is hinged to the base, the push-pull hook includes a hook and a counterweight fixed to each other, the weight of the push-pull hook near the counterweight at the hinge point with the base is slightly greater than that of the hook side, a limiting strip is provided on the inner side of the hook, the limiting strip abuts against the base, so that the push-pull hook remains horizontal in the normal state, an arc-shaped block is fixed on the outer side of the hook, and the push-pull hook near the hook side can rotate downward.

[0007] Further optimized, the maximum downward angle that the push-pull hook can rotate near the hook side is 30 degrees.

[0008] Further optimized, the counterweight has a groove, and a hinge ring is fixed to the bottom of the upper frame of the base. The hinge ring extends into the groove, and the counterweight is hinged to the hinge ring and the base by a pin.

[0009] Further optimized, the hook is an inverted ladder groove, with the inner edge of the ladder groove inclined at 30 degrees.

[0010] Further optimized, the height of the outer groove edge of the hook is 1 / 2 of the height of the inner groove edge.

[0011] In a further optimized configuration, a square steel beam is fixed to the bottom of the conveying tray, and the push-pull head pushes or pulls the conveying tray through the square steel beam.

[0012] The beneficial effects of this utility model are:

[0013] This new type of structure is simple, performs well, is purely mechanical, has no other components, has a low failure rate, is novel in design, and is highly efficient.

[0014] In this new type of push-pull head, the initial state is the pull state, the push-pull hook is kept horizontal, and it moves towards the conveyor tray. When it contacts the steel beam at the bottom of the conveyor tray, the outside of the push-pull hook tilts downward under the guidance of the arc plate. The stepped groove of the push-pull hook is stuck on the steel beam, and the conveyor tray can be pulled back in the opposite direction.

[0015] After the material tray loading and unloading is completed, the push-pull head begins to push the steel beam. At this time, the push-pull hook of the push-pull head will tilt further downward under the action of the pushing force until the inner side of the push-pull hook groove contacts the steel beam, which means it has changed to the pushing state. After the conveyor tray is pushed to the designated position, the push-pull hook can be pulled out by the reverse movement. The push-pull head returns to the original position to wait for the next push-pull. During the return process, under the vibration of the drive chain, the tilted push-pull hook automatically lifts up and returns to the horizontal pulling state. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the push-pull head of this utility model. Figure 1 .

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the push-pull head of this utility model. Figure 2 .

[0019] Figure 4 This is a three-dimensional structural diagram of the push-pull hook in the push-pull head of this utility model.

[0020] Figure 5 This is a three-dimensional structural diagram of the base in the push-pull head of this utility model.

[0021] Figure 6 This is a schematic diagram of the pull conveyor tray of this utility model.

[0022] Figure 7 This is a schematic diagram of the material conveying tray of this utility model.

[0023] In the diagram: 1. Conveyor roller; 2. Drive chain; 3. Push-pull head; 4. Steel beam; 5. Conveyor tray; 31. Push-pull hook; 32. Base; 33. Limiting strip; 34. Arc block; 311. Counterweight block; 3111. Groove; 3112. Pin; 312. Hook; 3121. Inner groove edge; 3122. Outer groove edge; 321. Hinge ring. Detailed Implementation

[0024] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. In the description of this invention, it should be noted that the terms "left," "right," "front," "rear," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0025] like Figure 1 As shown, this utility model provides a push-pull head that integrates push and pull, including a drive chain 2 and several conveying rollers 1. The conveying rollers are symmetrically arranged on both sides of the drive chain 2. The conveying rollers 1 are provided with conveying trays. The push-pull head 3 is fixed on the drive chain 2. The drive chain drives the push-pull head to reciprocate. The push-pull head is used to push or pull the conveying trays 5.

[0026] like Figure 2-5 As shown, the push-pull head includes a base 32 and a push-pull hook 31. The base 32 is frame-shaped, and the push-pull hook 31 passes through the base 32 and is hinged to the base. The push-pull hook 31 includes a hook 312 and a counterweight 311 that are fixed to each other. The weight of the side of the push-pull hook 31 closer to the counterweight 311 at the hinge point with the base 32 is slightly greater than that of the side of the hook 312. A limiting strip 33 is provided on the inner side of the hook 312, and the limiting strip 33 abuts against the base 32, so that the push-pull hook 31 remains horizontal in the normal state. Since the weight of the counterweight side is slightly greater than that of the hook side, vibration will naturally occur during the movement of the push-pull head driven by the drive chain, which will cause the tilted push-pull hook to automatically return to horizontal.

[0027] like Figure 3 As shown, an arc-shaped block 34 is fixed on the outer side of the hook 312. The push-pull hook 31 can rotate downward on the side near the hook 312. When the push-pull hook touches the steel beam, the outer side of the push-pull hook rotates downward and tilts under the guidance of the arc plate. The ladder groove of the push-pull hook is stuck on the steel beam, which can pull the conveyor tray.

[0028] As a preferred implementation method, such as Figure 4 , 7As shown, the maximum downward angle that the push-pull hook 31 can rotate near the hook 312 is 30 degrees. When pushing the transmission tray, the push-pull hook tilts at 30 degrees, and the inner groove edge 3121 of the hook is in a vertical state and connects with the steel beam.

[0029] As a preferred implementation method, such as Figure 4 , 5 As shown, the counterweight 311 has a groove 3111, and the bottom of the upper frame of the base 32 is fixed with a hinge ring 321. The hinge ring 321 extends into the groove 3111, and the counterweight 311 is hinged to the hinge ring and the base 32 by a pin.

[0030] In a preferred embodiment, the hook 312 is an inverted ladder groove, with the inner edge 3121 of the ladder groove inclined at 30 degrees. The height of the outer edge 3122 of the hook is half the height of the inner edge 3121.

[0031] In a preferred embodiment, a square steel beam 4 is fixed to the bottom of the conveying tray 5, and the push-pull head 3 pushes or pulls the conveying tray 5 through the square steel beam 4.

[0032] More specifically:

[0033] Combination Figure 1 , 6 As shown in Figure 7, the detailed working process is as follows.

[0034] 1. The push-pull head remains in the pulled state in the initial position, that is, the push-pull hook remains horizontal;

[0035] 2. The drive chain drives the push-pull head to move towards the conveyor tray. When the push-pull head contacts the steel beam at the bottom of the conveyor tray, the outside of the push-pull hook tilts downward under the guidance of the arc plate. The ladder groove of the push-pull hook is stuck at the bottom of the steel beam. Then the push-pull head pulls the conveyor tray back in the opposite direction.

[0036] 3. Loading and unloading of materials into and out of the tray is complete;

[0037] 4. The push-pull head begins to push the material tray back. At this time, the push-pull hook of the push-pull head will tilt further downward under the action of the pushing force until the inner side of the push-pull hook ladder groove contacts the steel beam, that is, it changes to the pushing state (i.e., from). Figure 6 Become Figure 7 The conveyor tray is pushed back to its original position;

[0038] 5. Then, the push-pull hook is pulled out in the reverse motion, and the push-pull head returns to its original position to wait for the next push-pull. During the return process, under the vibration of the drive chain, the tilted push-pull hook automatically lifts up and returns to the horizontal pull state.

[0039] All aspects not detailed in this utility model are well-known to those skilled in the art. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and not to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A push-pull integrated push-pull head, comprising a drive chain and a plurality of transmission rollers, characterized in that: The conveying rollers are symmetrically arranged on both sides of the drive chain. The conveying rollers are equipped with conveying trays. The drive chain is fixed with push-pull heads, which are used to push or pull the conveying trays. The push-pull head includes a base and a push-pull hook. The base is frame-shaped, and the push-pull hook passes through the base and is hinged to the base. The push-pull hook includes a hook and a counterweight that are fixed to each other. The weight on the side of the push-pull hook near the counterweight at the hinge point with the base is slightly greater than that on the side of the hook. A limiting strip is provided on the inner side of the hook. The limiting strip abuts against the base so that the push-pull hook remains horizontal in the normal state. An arc-shaped block is fixed on the outer side of the hook. The side of the push-pull hook near the hook can rotate downwards.

2. The push-pull integrated push-pull head according to claim 1, characterized in that: The maximum downward angle that the push-pull hook can rotate near the hook side is 30 degrees.

3. The push-pull integrated push-pull head according to claim 1, characterized in that: The counterweight has a groove, and a hinge ring is fixed to the bottom of the upper frame of the base. The hinge ring extends into the groove, and the counterweight is hinged to the hinge ring and the base by a pin.

4. The push-pull integrated push-pull head according to claim 1, characterized in that: The hook is an inverted ladder groove, with the inner edge of the ladder groove inclined at 30 degrees.

5. The push-pull integrated push-pull head according to claim 2, characterized in that: The height of the outer groove edge of the hook is 1 / 2 of the height of the inner groove edge.

6. The push-pull integrated push-pull head according to claim 1, characterized in that: A square steel beam is fixed to the bottom of the conveyor tray, and the push-pull head pushes or pulls the conveyor tray through the square steel beam.

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