Lifting material pushing table for producing polycarbonate

Abstract

The utility model relates to a lifting material pushing table for producing polycarbonate, and belongs to the technical field of lifting material pushing tables. According to the technical scheme, the device comprises a bottom plate, four universal wheels are installed on the lower surface of the bottom plate, and a lifting mechanism is installed on the upper surface of the bottom plate; a storage box is arranged above the lifting mechanism, a box opening is formed in the upper portion of the storage box, the storage box comprises a main body and a movable plate, a discharging opening is formed in one side of the main body, the top of the movable plate is hinged to the top of the main body, the movable plate covers the discharging opening, and the lifting mechanism adjusts overall lifting of the storage box. The lifting mechanism adjusts the storage box to incline towards one side of the discharge port in a material pushing state to form a certain inclination angle, so that plastic particles are convenient to pour; according to the utility model, a certain inclination angle can be formed through the storage box, so that all plastics can be poured into the stirrer when the pushing operation is carried out, and the production efficiency is further improved through the use of the controller and the sensor.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting and pushing platforms, and in particular relates to a lifting and pushing platform for producing polycarbonate. Background Art

[0002] Polycarbonate, referred to as PC, is a non-crystalline thermoplastic. It is a general term for a class of polymer compounds containing carbonate structures in their molecular chains and various materials made based on them. PC is an engineering plastic widely used in many fields, mainly in electronics, automobiles, transportation and food packaging.

[0003] In the production process of polycarbonate, that is, plastic, it is necessary to put the plastic particles into a large mixer for mixing. This is called the loading process of plastic particles. In this process, a lifting pusher table is used to transport the plastic particles to the mixer. When in use, the operator loads the plastic particles onto the lifting pusher table, and then pushes it to the mixer feed port. The height of the pusher table is adjusted according to the height of the mixer feed port, and then the plastic on the pusher table is poured into the mixer feed port. This operation is called pushing.

[0004] A Chinese patent, with publication number CN214141410U, discloses a lifting platform with a pushing function, including a base plate, a push rod, a cylinder, a piston plate and a second spring. Four electric lifting rods and an air pump are arranged on the upper surface of the base plate, two second springs are arranged on the left surface of the push plate, a buffer plate is arranged on the left surface of the two second springs, a protective plate is arranged on the left surface of the buffer plate, and two limit rods are arranged on the right surface of the buffer plate, and the two limit rods are respectively arranged inside the two second springs. Compared with the prior art, the utility model has the following beneficial effects: through the arranged air pump, piston plate, cylinder, first spring and push rod, the objects placed on the lifting platform can be automatically pushed out, and the staff does not need to take them off the lifting platform.

[0005] In the above scheme, the push plate pushes the items from the storage board. Under the horizontal thrust of the push plate, lateral forces will be generated on both sides when encountering the items, which will cause the items near the edge of the storage board to fall, increasing the subsequent process. In addition, installing a push plate, a protective plate or a buffer plate at one end of the storage board is not conducive to the horizontal balance of the storage board. Utility Model Content

[0006] In order to solve the above problems existing in the prior art, the utility model provides a lifting and pushing table for producing polycarbonate, which solves the problem of the lifting and pushing table required for cooperating with a large mixer in the production process of polycarbonate.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A lifting and pushing platform for producing polycarbonate, comprising a bottom plate, four universal wheels are installed on the lower bottom surface of the bottom plate, a first electric push rod and a second electric push rod are symmetrically arranged at both ends of the upper surface of the bottom plate, when in a pushing state, the height of the second electric push rod is higher than the height of the first electric push rod, and in other states, the first electric push rod and the second electric push rod are at the same level;

[0009] A storage box is arranged above the first electric push rod and the second electric push rod, the push rods of the first electric push rod and the second electric push rod are hinged to the lower bottom surface of the storage box, a box opening is opened above the storage box, and a side plate of the storage box close to the first electric push rod is a movable plate, that is, the side edge of the movable plate is hinged to a side edge of the inner bottom surface of the storage box, and the lifting of the entire storage box is adjusted by the first cylinder and the second cylinder;

[0010] The storage box has a certain inclination angle when it is in the material pushing state, and is in a horizontal state when it is in the material non-pushing state.

[0011] Preferably, the four universal wheels are respectively installed around the lower bottom surface of the base plate, and the four universal wheels are hinged with limit plates, and the limit plates are used to limit the rotation of the universal wheels when the base plate is parked.

[0012] Preferably, a controller is further included, and the controller controls the extension and retraction of the first electric push rod and the second electric push rod respectively.

[0013] Preferably, the push rods of the first electric push rod and the second electric push rod are both hinged to the lower bottom surface of the storage box through hinged wheels.

[0014] Preferably, the movable plate is detachably connected between two side plates abutting against the storage box.

[0015] Preferably, a distance sensor is also included, which is used to measure the height of the lower bottom surface of the storage box close to the first electric push rod from the ground, and upload the height to the controller, and the controller controls the extension and retraction of the first electric push rod and the second electric push rod respectively.

[0016] The beneficial effects of the utility model are:

[0017] The design of the storage box can adapt to materials as small as plastic particles, and the tilt angle of the storage box is adjusted by a movable plate and a lifting mechanism, so that the new lifting pushing platform can push materials more accurately. The controller controls the height of the first electric push rod and the second electric push rod, and the distance sensor measures the height of the first electric push rod from the ground, making the new lifting pushing platform more intelligent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a simplified structural diagram of the utility model.

[0020] Main component symbols

[0021] In the figure: 1, bottom plate; 2, universal wheel; 3, storage box; 31, movable plate; 41, first electric push rod; 42, second electric push rod. DETAILED DESCRIPTION

[0022] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0023] See also Figure 1 The present embodiment provides a lifting and pushing platform for producing polycarbonate, comprising a bottom plate: 1, four universal wheels 2 are symmetrically installed at both ends of the lower surface of the bottom plate: 1, and the universal wheels 2 are used for the movement of the bottom plate: 1 in any direction to improve the flexibility of the lifting and pushing platform; a lifting mechanism is installed on the upper surface of the bottom plate: 1, and the lifting mechanism can be adjusted up and down, and a storage box 3 is arranged above the lifting mechanism, and a box opening is opened above the storage box 3. The storage box 3 includes a main body with a discharge port formed on one side and a movable plate 31. The top of the movable plate 31 is hinged to the top of the main body, so that the movable plate 31 can cover the discharge port when it is not in the pushing state. The movable range of the movable plate 31 is 0°-90°, which ensures that the plastic particles placed in the storage box 3 will not fall. The lifting and lowering of the lifting mechanism can both adjust the storage box as a whole The height of 3 can also be adjusted in the pushing state so that the storage box 3 is tilted toward the side of the discharge port to facilitate the pouring of plastic particles; when the lifting and pushing platform is not pushing materials, the storage box 3 is a box body with a box opening on the top, and the plastic particles required for production are placed in the box body. When the lifting and pushing platform reaches the feed port area of ​​the mixer, the lifting mechanism adjusts the storage box 3 to tilt toward the discharge port. Since the movable plate 31 and the main body of the storage box 3 are in a hinged state, when the storage box 3 is tilted, due to the gravity of the movable plate 31 itself and the force generated by the plastic particles in the box body after the storage box 3 is tilted, the movable plate 31 is opened, and the plastic particles in the storage box 3 can be poured out smoothly. The lifting mechanism here can be selected from a mechanism with an up and down height adjustment, such as a telescopic rod, an electric push rod or a cylinder, etc., which meets the needs of the present invention.

[0024] Continuing from the previous embodiment, this embodiment provides an application of a lifting mechanism, which includes a first electric push rod 41 and a second electric push rod 42. The first electric push rod 41 and the second electric push rod 42 are mirror images of each other and are symmetrically arranged at both ends of the bottom plate: 1. The first electric push rod 41 is installed at one end of the discharge port. When the lifting pusher pushes materials, the height of the second electric push rod 42 is higher than the height of the first electric push rod 41. When the lifting pusher is in other states, the heights of the first electric push rod 41 and the second electric push rod 42 are consistent; the push rods of the first electric push rod 41 and the second electric push rod 42 are both hinged to the lower surface of the storage box 3. When the second electric push rod 42 is modified to be higher than the height of the second electric push rod 42, the contact surface between the push rod of the cylinder and the storage box 3 will form a certain angle, which is not conducive to the structural stability and production safety of the lifting and pushing platform itself. All the push rods of the cylinders in the present invention are hinged to the lower surface of the storage box 3 using a hinge structure. The hinge structure can be hinged with an articulated wheel or other articulated structures to meet the needs; in order to balance the force, the first electric push rod 41 can include two cylinders with mirror-image structures, and the second electric push rod 42 is the same. The four cylinders are respectively located around the lower surface of the storage box 3 to ensure force balance.

[0025] Because in actual operation, it is difficult for the operator to accurately locate the moving range of the first electric push rod 41 and the second electric push rod 42 by naked eyes, that is, when the lifting and pushing platform reaches the feed inlet of the mixer, the height of the storage box 3 is determined. In order to improve the operation accuracy, in this embodiment, a controller is added, and the output end of the controller is electrically connected to the first electric push rod 41 and the second electric push rod 42 respectively, that is, the controller is used to control the extension and retraction of the corresponding cylinders. On the one hand, the height of the mixer is input in advance on the controller. When the lifting and pushing platform reaches the feed inlet of the mixer, the controller controls the overall height of the storage box 3. degree, that is, let the material outlet of the storage box 3 align with the material inlet of the mixer. On the other hand, the tilting height is input in advance in the controller, and the operator inputs the pushing instruction. The controller controls the first electric push rod 41 to keep the height unchanged, and slowly adjusts the height of the second electric push rod 42. The storage box 3 slowly tilts until the second electric push rod 42 is higher than the tilting height of the first electric push rod 41, and the push rod of the second electric push rod 42 stops extending. Here, the height of the second electric push rod 42 is equal to the height of the first electric push rod 41 (the height of the material inlet of the mixer) plus the tilting height, and the storage box 3 tilts toward the material outlet to achieve dumping;

[0026] The controller can achieve precise coordination between the height of the lifting and pushing platform and the height of the mixer; the tilt height here can be calculated in an experimental environment, and the experiment can be repeated to adjust the height of the second electric push rod 42 and the first electric push rod 41 to find the optimal tipping height. At this time, the tilt height is equal to the height of the bottom rod B minus the height of the second electric push rod 42.

[0027] Taking into account that the movable plate 31 is hinged to the top of the main body in the storage box 3, but the movable plate 31 needs to be able to cover the discharge port when the storage box 3 is loaded with plastic particles, the horizontal force on the movable plate 31 must be greater than the force on the discharge port of the storage box 3 by the plastic particles, so the movable plate 31 itself must have a certain counterweight. The specific weight can be considered in terms of the size of the storage box 3 and the weight of the plastic particles contained therein, and is specifically designed with reference to the dump box structure of the truck.

[0028] Further, in order to simplify the production process and improve the production intelligence, there is no need to manually measure the height of the mixer, thereby improving the production efficiency. Following the above embodiment, this embodiment adds a distance sensor, the distance sensor and the controller are electrically connected, and the distance sensor is used to measure the height of the mixer feed port from the ground, and the height is uploaded to the controller. The controller adjusts the push rod extension of the first electric push rod 41 and the second electric push rod 42 according to the height, so that the outlet of the storage box 3 is aligned with the mixer feed port. The tilt height is pre-stored in the controller. During the subsequent pushing operation, the controller controls the extension of the push rod of the second electric push rod 42 according to the first electric push rod 41 and the tilt height, so that the storage box 3 is tilted and the plastic particles are poured out. Further, the sensing distance can also be set in the distance sensor, that is, the distance sensor can also sense the mixer feed port, and upload the sensing signal to the controller. The controller directly controls the extension of the push rod of the second electric push rod 42 according to the signal, so that the storage box 3 is tilted, which is more intelligent.

[0029] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A lifting and pushing table for producing polycarbonate, characterized in that: It comprises a bottom plate, four universal wheels are installed on the lower surface of the bottom plate, and a lifting mechanism is installed on the upper surface of the bottom plate; A storage box is arranged above the lifting mechanism, and a box opening is opened above the storage box. The storage box includes a main body with a discharge port formed on one side and a movable plate. The top of the movable plate is hinged to the top of the main body so that the movable plate cover is buckled on the discharge port. The lifting mechanism adjusts the overall lifting of the storage box, and the lifting mechanism adjusts the storage box to tilt toward the discharge port in a pushing state, so that the storage box forms an inclination angle.

2. A lifting and pushing platform for producing polycarbonate according to claim 1, characterized in that: The lifting mechanism includes a first electric push rod and a second electric push rod. The first electric push rod and the second electric push rod are mirror images of each other and are symmetrically arranged at both ends of the bottom plate. The push rods of the first electric push rod and the second electric push rod are both hinged to the lower surface of the storage box.

3. The lifting and pushing platform for producing polycarbonate according to claim 2, characterized in that: It also includes a controller, which is electrically connected to the first electric push rod and the second electric push rod respectively, and the controller controls the extension and retraction of the first electric push rod and the second electric push rod respectively.

4. The lifting and pushing platform for producing polycarbonate according to claim 1, characterized in that: The four universal wheels are respectively installed around the bottom surface of the base plate, and the four universal wheels are hinged with limit plates, which are used to limit the rotation of the universal wheels when the lifting and pushing platform is parked.

5. The lifting and pushing platform for producing polycarbonate according to claim 1, characterized in that: The movable plate itself has a certain counterweight.

6. The lifting and pushing platform for producing polycarbonate according to claim 3, characterized in that: It also includes a distance sensor, which is electrically connected to the controller. The distance sensor is used to measure the height of the feed port of the mixer from the ground and upload the height to the controller.

Images