Drive mechanism for pulp molding machine

Abstract

The present invention relates to the technical field of pulp molding, and discloses a driving mechanism for a pulp molding machine, which is symmetrically arranged at both ends of a main shaft, and includes an active eccentric wheel installed at the end of the main shaft, two driven eccentric wheels for connecting an auxiliary shaft, a connecting rod and an auxiliary connecting rod arranged in parallel, the active eccentric wheel and the driven eccentric wheel are both hinged to the connecting rod through a connecting piece, and the active eccentric wheel is located in the middle of the connecting rod, and the two driven eccentric wheels are respectively located at both ends of the connecting rod, and three cranks are connected between the connecting rod and the auxiliary connecting rod, and one end of the crank is hinged to the auxiliary connecting rod, and the other end is fixedly connected to the connecting piece. The driving mechanism for a pulp molding machine provided by the present invention, when the connecting rod runs to a colinear position, the auxiliary connecting rod can provide a tangential force with a determined direction for the active eccentric wheel and the driven eccentric wheel, thereby ensuring the smooth and normal operation of the driving mechanism and simplifying the mechanical structure.

Description

Technical Field

[0001] The invention relates to the technical field of pulp molding, in particular to a driving mechanism for a pulp molding machine. Background Art

[0002] The current driving mechanism of pulp molding machines generally has the problem that when the driven connecting rod moves to the collinear position, the direction of the tangential force cannot be determined, resulting in the mechanism being unable to move and operate normally. The current conventional practice is to connect a set of four-bar linkages, which not only makes the transmission system more bloated, but also increases the energy consumption of the drive system. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a driving mechanism for a pulp molding machine, which ensures the smooth and normal operation of the mechanism, simplifies the mechanical structure, and saves energy consumption.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A driving mechanism for a pulp molding machine is symmetrically arranged at both ends of a main shaft, comprising an active eccentric wheel installed at the end of the main shaft, two driven eccentric wheels for connecting an auxiliary shaft, a connecting rod and an auxiliary connecting rod arranged in parallel, the active eccentric wheel and the driven eccentric wheel are both hinged to the connecting rod through a connecting piece, and the active eccentric wheel is located in the middle of the connecting rod, the two driven eccentric wheels are respectively located at both ends of the connecting rod, three cranks are connected between the connecting rod and the auxiliary connecting rod, one end of the crank is hinged to the auxiliary connecting rod, and the other end is fixedly connected to the connecting piece.

[0006] Preferably, first pins are rotatably inserted at both ends of the connecting rod, and both ends of the first pin are fixedly connected to the auxiliary connecting rod and the driven eccentric wheel respectively.

[0007] Preferably, a first crank is connected between the first pin and the auxiliary connecting rod, one end of the first crank is rotatably connected to the auxiliary connecting rod, and the other end is key-connected to the first pin.

[0008] Preferably, a second pin is rotatably inserted into the middle of the connecting rod, and two ends of the second pin are respectively fixedly connected to the auxiliary connecting rod and the active eccentric wheel.

[0009] Preferably, a second crank is connected between the second pin and the auxiliary connecting rod, one end of the second crank is rotatably connected to the auxiliary connecting rod, and the other end is key-connected to the second pin.

[0010] Preferably, a pull rod is rotatably connected to the second pin shaft, and the other end of the pull rod is used to connect to the product transfer mechanism.

[0011] Preferably, the pull rod is located between the active eccentric wheel and the connecting rod, and a counterweight is provided at one end of the pull rod away from the second crank.

[0012] Preferably, the upper end of the connecting rod is provided with a connecting hole for connecting to a cold extrusion device.

[0013] Compared with the prior art, the drive mechanism for pulp molding machine of the embodiment of the present invention has the following beneficial effects: by setting a connecting rod and an auxiliary connecting rod, and connecting a crank between the connecting rod and the auxiliary connecting rod, one end of the crank is hinged with the auxiliary connecting rod, and the other end is fixedly connected with the connecting piece. When the connecting rod runs to the collinear position, the auxiliary connecting rod can provide a tangential force with a determined direction for the active eccentric wheel and the driven eccentric wheel, which not only ensures the stable and normal operation of the drive mechanism, but also simplifies the mechanical structure and saves energy because there is no need to connect a set of four-bar connecting rods. The present invention has a simple structure, good use effect, and is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the driving mechanism for the pulp molding machine of the present invention.

[0015] Figure 2 It is a schematic structural diagram of the driving mechanism for the pulp molding machine of the present invention.

[0016] Figure 3 It is a cross-sectional view of the driving mechanism for the pulp molding machine of the present invention.

[0017] Among them: 1-main shaft, 2-driving eccentric wheel, 3-connecting rod, 4-auxiliary connecting rod, 5-driven eccentric wheel, 6-first pin shaft, 7-first crank, 8-key, 9-second pin shaft, 10-second crank, 11-pull rod, 12-counterweight block, 13-auxiliary shaft, 14-connecting hole. DETAILED DESCRIPTION

[0018] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] like Figure 1-3As shown, a driving mechanism for a pulp molding machine in a preferred embodiment of the present invention is symmetrically arranged at both ends of a main shaft 1, including an active eccentric wheel 2 installed at the end of the main shaft 1, two driven eccentric wheels 5 for connecting an auxiliary shaft 13, a connecting rod 3 and an auxiliary connecting rod 4 arranged in parallel, the active eccentric wheel 2 and the driven eccentric wheel 5 are both hinged to the connecting rod 3 through a connecting piece, and the active eccentric wheel 2 is located in the middle of the connecting rod 3, the two driven eccentric wheels 5 are respectively located at both ends of the connecting rod 3, three cranks are connected between the connecting rod 3 and the auxiliary connecting rod 4, and one end of the crank is hinged to the auxiliary connecting rod 4, and the other end is fixedly connected to the connecting piece. The auxiliary shaft 13 is a transmission shaft of other mechanisms, such as the rotating shaft of a drum and the rotating shaft of a drying line.

[0020] The driving mechanism for pulp molding machine based on the above technical features is provided with connecting rod 3 and auxiliary connecting rod 4, and a crank is connected between the connecting rod 3 and the auxiliary connecting rod 4, one end of the crank is hinged with the auxiliary connecting rod 4, and the other end is fixedly connected with the connecting piece. When the connecting rod 3 runs to the collinear position, the auxiliary connecting rod 4 can provide a tangential force with a certain direction for the active eccentric wheel 2 and the driven eccentric wheel 5, which not only ensures the stable and normal operation of the driving mechanism, but also simplifies the mechanical structure and saves energy because a set of four-bar connecting rod mechanisms are not externally connected. The present invention has a simple structure, good use effect, and is easy to promote and use.

[0021] In this embodiment, the connecting member between the driven eccentric wheel 5 and the connecting rod 3 is a first pin shaft 8, and the connecting member between the active eccentric wheel 2 and the connecting rod 3 is a second pin shaft 9. Specifically, the first pin shaft 8 is rotatably inserted at both ends of the connecting rod 3, and the two ends of the first pin shaft 8 are respectively fixedly connected to the auxiliary connecting rod 4 and the driven eccentric wheel 5; the second pin shaft 9 is rotatably inserted at the middle part of the connecting rod 3, and the two ends of the second pin shaft 9 are respectively fixedly connected to the auxiliary connecting rod 4 and the active eccentric wheel 2. At the same time, a first crank 7 is connected between the first pin shaft 6 and the auxiliary connecting rod 4, one end of the first crank 7 is rotatably connected to the auxiliary connecting rod 4, and the other end is connected to the first pin shaft 6 by a key 8; a second crank 10 is connected between the second pin shaft 9 and the auxiliary connecting rod 4, one end of the second crank 10 is rotatably connected to the auxiliary connecting rod 4, and the other end is connected to the second pin shaft 9 by a key 8. Thus, one end of the crank is hinged to the auxiliary connecting rod 4, and the other end is fixedly connected to the connecting piece, and the connecting rod 3 is hinged to the active eccentric wheel 2 and the driven eccentric wheel 5. Preferably, the rotation connection is all connected by bearings.

[0022] In addition, the first crank 7 and the second crank 10 may be the same or different.

[0023] In this embodiment, a pull rod 11 is rotatably connected to the second pin shaft 9, and the other end of the pull rod 11 is used to connect the product transfer mechanism to provide driving force for the product transfer mechanism. At the same time, the pull rod 11 is located between the active eccentric wheel 2 and the connecting rod 3, and a counterweight block 12 is provided at the end of the pull rod 11 away from the second crank 10. By providing the counterweight block 12, a certain auxiliary force can be applied during the product transfer process to offset the force exerted on the product transfer mechanism by the weight of a part of the product to be transferred, thereby improving the performance and reliability of the product transfer mechanism.

[0024] In this embodiment, the upper end of the connecting rod 3 is provided with a connecting hole 14 for connecting a cold extrusion device. In order to improve the surface quality of the product, a cold extrusion device can be provided on the pulp molding machine for deburring, and the cold extrusion device is connected by providing the connecting hole 14, so that the pulp molding machine uses a driving mechanism to provide power for the cold extrusion device.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A driving mechanism for a pulp molding machine is symmetrically arranged at both ends of a main shaft, characterized in that: It includes a driving eccentric wheel installed at the end of the main shaft, two driven eccentric wheels for connecting the auxiliary shaft, a connecting rod and an auxiliary connecting rod arranged in parallel, the driving eccentric wheel and the driven eccentric wheel are both hinged to the connecting rod through a connecting piece, and the driving eccentric wheel is located in the middle of the connecting rod, and the two driven eccentric wheels are respectively located at both ends of the connecting rod, three cranks are connected between the connecting rod and the auxiliary connecting rod, and one end of the crank is hinged to the auxiliary connecting rod, and the other end is fixedly connected to the connecting piece; A second pin is rotatably inserted in the middle of the connecting rod, and two ends of the second pin are respectively fixedly connected to the auxiliary connecting rod and the active eccentric wheel; A second crank is connected between the second pin shaft and the auxiliary connecting rod, one end of the second crank is rotatably connected to the auxiliary connecting rod, and the other end is key-connected to the second pin shaft; The second pin shaft is rotatably connected to a pull rod, and the other end of the pull rod is used to connect to a product transfer mechanism; The pull rod is located between the active eccentric wheel and the connecting rod, and a counterweight is provided at one end of the pull rod away from the second crank; The two ends of the connecting rod are respectively rotatably plugged with a first pin shaft, and the two ends of the first pin shaft are respectively fixedly connected to the auxiliary connecting rod and the driven eccentric wheel.

2. The driving mechanism for pulp molding machine according to claim 1, characterized in that: A first crank is connected between the first pin and the auxiliary connecting rod. One end of the first crank is rotatably connected to the auxiliary connecting rod, and the other end is key-connected to the first pin.

3. The driving mechanism for a pulp molding machine according to any one of claims 1 to 2, characterized in that: The upper end of the connecting rod is provided with a connecting hole for connecting a cold extrusion device.

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