Cylinder core protection device for pressurizing oil cylinder of continuous press

Abstract

The utility model discloses a cylinder core protection device for a pressurizing oil cylinder of a continuous press, which comprises a piston cylinder and a plunger type cylinder, and is characterized by further comprising a cylinder core protection steel sleeve arranged on the piston cylinder or the plunger type cylinder, the cylinder core protection steel sleeve is made of metal materials, and the piston cylinder and the plunger type cylinder are arranged on the cylinder core protection steel sleeve. A cylinder core on the piston cylinder or the plunger cylinder penetrates through the cylinder core protection steel sleeve, and an oil collecting tray installed on the cylinder core on the piston cylinder or the plunger cylinder is located in the cylinder core protection steel sleeve. The cylinder core protection steel sleeve made of metal is used for protecting the cylinder core on the pressurizing oil cylinder, so that the pressurizing oil cylinder is long in service life, attractive and elegant, and the rusting risk of the cylinder core cannot be increased; meanwhile, the cylinder core protection steel sleeve can prevent steam released when the MDI glue artificial board is pressed from touching the cylinder core of the pressurizing oil cylinder, and glue particles or glue layers cannot be formed on the surface of the cylinder core.

Description

Technical Field

[0001] This utility model relates to the field of continuous press press cylinder technology, and in particular to a cylinder core protection device used in continuous press press cylinders. Background Technology

[0002] Currently, the pressure cylinders used in continuous presses for producing engineered wood products are divided into piston cylinder 1 and plunger cylinder 3. Piston cylinder 1 not only applies pressure but also lifts the hot press plates, while plunger cylinder 3 only applies pressure. In the production of engineered wood products (including but not limited to particleboard, fiberboard, and oriented strand board) using continuous presses, due to the increasing demand for environmental protection in recent years, formaldehyde-free MDI adhesives are widely used in engineered wood products. See also... Figures 1 to 5 In the diagram, markings 1f and 3b indicate oil collection trays. When the continuous press 2 presses MDI-bonded engineered wood panels, the steam released can cause adhesive particles or layers to form on the surface of the piston cylinder 1's core 1a or the plunger cylinder 3's core 3a. This can lead to oil leakage from the piston cylinder 1 or plunger cylinder 3, or even the adhesive particles entering the interior of the piston cylinder 1 or plunger cylinder 3, causing hydraulic valve blockage and malfunction. Currently, common practice is to add a flexible bellows-style cylinder core protective cover (commonly known as a "leather bellows") to the protruding end of the piston cylinder 1's core 1a or the plunger cylinder 3's core 3a, or to bind oil-resistant and high-temperature-resistant flexible board material to the protruding end of the piston cylinder 1's core 1a or the plunger cylinder 3's core 3a. However, these temporary measures have short lifespans, are unsightly, and may even increase the risk of corrosion of the piston cylinder 1's core 1a or the plunger cylinder 3's core 3a. Utility Model Content

[0003] The technical problem to be solved by this utility model is to address the problems caused by adding a flexible bellows-type cylinder core protective cover, commonly known as a "leather bellows," to the cylinder core extension end of the pressurizing cylinder of a continuous press, or by binding oil-resistant and high-temperature resistant flexible plate material to the cylinder core extension end. The present invention provides a cylinder core protection device for the pressurizing cylinder of a continuous press that has a long service life, is aesthetically pleasing, and does not increase the risk of cylinder core corrosion.

[0004] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0005] A cylinder core protection device for a continuous press press cylinder includes a piston cylinder and a plunger cylinder. The device is characterized by further including a cylinder core protection steel sleeve installed on the piston cylinder or plunger cylinder. The cylinder core protection steel sleeve is made of metal, and the cylinder core on the piston cylinder or plunger cylinder passes through the cylinder core protection steel sleeve.

[0006] In a preferred embodiment of the present invention, a cylinder core hole is provided at the bottom of the cylinder core protective steel sleeve for the cylinder core of the piston cylinder or plunger cylinder to pass through. A flange base plate is provided around the cylinder core hole, and an oil pipe outlet hole is provided on the flange base plate. The oil drain pipe on the oil collection plate passes through the oil pipe outlet hole.

[0007] In a preferred embodiment of the present invention, a guide groove is provided on the sleeve wall of the cylinder core protective steel sleeve, and a guide component is also provided on the cylinder body of the pressurizing cylinder. The guide component is embedded in the guide groove to guide the cylinder core protective steel sleeve during installation and to prevent the cylinder core protective steel sleeve from rotating or shifting during operation.

[0008] In a preferred embodiment of the present invention, a second slot is provided on each of the left and right sides of the guide groove, and a second protective cover is also provided, with the left and right sides of the second protective cover inserted into the second slot.

[0009] In a preferred embodiment of the present invention, at least one clearance notch is provided circumferentially on the sleeve wall of the cylinder core protective steel sleeve to avoid the venting connector, oil inlet / outlet connector and oil pipe on the pressurized oil cylinder.

[0010] In a preferred embodiment of the present invention, the top of the clearance notch is open.

[0011] In a preferred embodiment of this utility model, a first protective cover is also included, which is equal in number to the clearance notch. A first slot is provided on each of the left and right sides of the clearance notch. The left and right sides of the first protective cover are inserted into the first slot. When it is necessary to replace the venting connector and oil inlet / outlet connector on the pressurizing cylinder, the first protective cover can be pulled out to replace the venting connector and oil inlet / outlet connector of the pressurizing cylinder.

[0012] In a preferred embodiment of this utility model, the cylinder core protective steel sleeve adopts a two-half structure design, and the two halves are fixed together by fasteners.

[0013] Due to the adoption of the above technical solution, this utility model uses a metal cylinder core protective steel sleeve to protect the cylinder core on the pressurized oil cylinder, which has a long service life, is aesthetically pleasing and does not increase the risk of cylinder core corrosion; at the same time, the cylinder core protective steel sleeve can prevent the steam released when pressing the artificial board with MDI glue from hitting the cylinder core of the pressurized oil cylinder, and will not form glue particles or glue layers on the cylinder core surface. Attached Figure Description

[0014] Figure 1 This is a schematic diagram showing the installation of the piston cylinder and plunger cylinder of an existing pressurized hydraulic cylinder in a continuous press.

[0015] Figure 2This is a schematic diagram showing the state of an existing plunger cylinder without a cylinder core protection device when it is closed.

[0016] Figure 3 This is a schematic diagram showing the working state of an existing plunger cylinder without a cylinder core protection device.

[0017] Figure 4 This is a schematic diagram showing the state of an existing piston cylinder without a cylinder core protection device when it is closed.

[0018] Figure 5 This is a schematic diagram showing the working state of an existing piston cylinder without a cylinder core protection device.

[0019] Figure 6 This is a schematic diagram of the cylinder core protection device used in the plunger cylinder of Embodiment 1 of this utility model.

[0020] Figure 7 This is an exploded view of the cylinder core protection device used in the plunger cylinder of Embodiment 1 of this utility model.

[0021] Figure 8 This is a schematic diagram of the cylinder core protection device used in the piston cylinder of Embodiment 1 of this utility model when the piston cylinder is closed.

[0022] Figure 9 for Figure 8 Top view.

[0023] Figure 10 This is a schematic diagram of the cylinder core protection device used in the continuous press plunger cylinder of Embodiment 1 of this utility model when the plunger cylinder is in operation.

[0024] Figure 11 for Figure 10 Top view.

[0025] Figure 12 This is a schematic diagram of the cylinder core protection device used in the piston cylinder of Embodiment 2 of this utility model.

[0026] Figure 13 This is an exploded view of the cylinder core protection device used in the piston cylinder of Embodiment 2 of this utility model.

[0027] Figure 14 This is a schematic diagram of the piston cylinder protection device used in Embodiment 2 of this utility model when the piston cylinder is closed.

[0028] Figure 15 for Figure 14 Top view.

[0029] Figure 16 This is a schematic diagram of the piston cylinder protection device used in Embodiment 2 of this utility model when the piston cylinder is in operation.

[0030] Figure 17 for Figure 16 Top view. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] Example 1

[0033] See Figures 6 to 11 The figure shows a cylinder core protection device for a plunger cylinder, including a plunger cylinder 3 and a cylinder core protection steel sleeve 100a installed on the plunger cylinder 3. The cylinder core protection steel sleeve 100a is made of metal. The cylinder core 3a on the plunger cylinder 3 passes through the cylinder core protection steel sleeve 100a, so that the steam released by the continuous press 2 when pressing the artificial board with MDI glue will not enter the cylinder core protection steel sleeve 100a and come into contact with the cylinder core 3a of the plunger cylinder 3, and will not form glue particles or glue layers on its surface, thereby preventing oil leakage from the plunger cylinder 3 or even glue particles entering the interior of the plunger cylinder 3, causing the hydraulic valve to become blocked and unable to work.

[0034] The specific structure of the cylinder core protective steel sleeve 100a is as follows: The cylinder core protective steel sleeve 100a adopts a structure design of two half cylinder core protective steel sleeves 110a and 120a, and the two half cylinder core protective steel sleeves 110a and 120a are fixed together by fasteners 130a.

[0035] Each semi-cylinder core protective steel sleeve 110a, 120a consists of a flange base plate 111a, 121a and sleeve walls 112a, 122a that connect to the outer edge of the flange base plate 111a, 121a and extend upward. After the two semi-cylinder core protective steel sleeves 110a, 120a are assembled by fasteners 130a, the flange base plates 111a, 121a form a complete circular flange base plate. At the same time, the flange base plates 111a, 121a form a cylinder core hole 140a, so that the cylinder core hole 140a is located at the bottom of the cylinder core protective steel sleeve 100. During installation, the cylinder core 3a on the plunger cylinder 3 passes through, so that the steam released by the continuous press 2 when pressing the MDI glue artificial board will not come into contact with the cylinder core 3a of the plunger cylinder 3, and will not form glue particles or glue layers on the surface of the cylinder core 3a on the plunger cylinder 3, which would cause oil leakage from the plunger cylinder 3 or even glue particles entering the interior of the plunger cylinder 3, causing the hydraulic valve to become blocked and unable to work.

[0036] In order to facilitate the extension of the oil drain pipe 3c from the oil collection plate 3b to the cylinder core protective steel sleeve 100a, an oil pipe outlet hole 111aa is provided on the flange base plate 111a, through which the oil drain pipe 3c passes.

[0037] Additionally, a guide groove 112aa is provided on the sleeve wall 112a of the semi-cylinder core protective steel sleeve 110a, and a guide component 3e is also included, which is installed on the cylinder body 3d of the plunger cylinder 3. The guide component 3e is embedded in the guide groove 112aa to guide the installation of the cylinder core protective steel sleeve 100a and prevent the cylinder core protective steel sleeve 100a from rotating or shifting during operation. A slot 112ab (the aforementioned second slot) is also provided on each of the left and right sides of the guide groove 112aa, and a protective cover 160c (the aforementioned second protective cover) is also inserted into the pair of slots 112ab on the left and right sides.

[0038] Example 2

[0039] See Figures 12 to 17 The figure shows a piston cylinder core protection device, which includes a piston cylinder 1 and a core protection steel sleeve 100 installed on the piston cylinder 1. The core protection steel sleeve 100 is made of metal. The cylinder core 1a on the pressurized oil cylinder 1 passes through the core protection steel sleeve 100, so that the steam released by the continuous press 2 when pressing the artificial board with MDI glue will not enter the core protection steel sleeve 100 and come into contact with the cylinder core 1a of the pressurized oil cylinder 1, and will not form glue particles or glue layers on its surface, which would cause the pressurized oil cylinder 1 to leak oil or even glue particles to enter the interior of the pressurized oil cylinder 1, causing the hydraulic valve to be blocked and unable to work.

[0040] The specific structure of the cylinder core protective steel sleeve 100 is as follows: The cylinder core protective steel sleeve 100 adopts a structure design of two half cylinder core protective steel sleeves 110 and 120, and the two half cylinder core protective steel sleeves 110 and 120 are fixed together by fasteners 130.

[0041] Each semi-cylinder core protective steel sleeve 110, 120 consists of a flange base plate 111, 121 and sleeve walls 112, 122 that connect to the outer edge of the flange base plate 111, 121 and extend upward. After the two semi-cylinder core protective steel sleeves 110, 120 are assembled by fasteners 130, the flange base plates 111, 121 form a complete circular flange base plate, which also serves as the flange base plate for the oil collection chamber. At the same time, the flange base plates 111, 12 form a cylinder core hole 140, so the cylinder core hole 140 is located at the bottom of the cylinder core protective steel sleeve 100. During installation, the cylinder core 1a on the piston cylinder 1 passes through, so that the steam released by the continuous press 2 when pressing the MDI glue artificial board will not come into contact with the cylinder core 1a of the piston cylinder 1, and will not form glue particles or glue layers on the surface of the cylinder core 1a on the piston cylinder 1, which would cause oil leakage from the piston cylinder 1 or even glue particles entering the interior of the piston cylinder 1, causing the hydraulic valve to become blocked and unable to work.

[0042] In order to facilitate the extension of the oil drain pipe 1g from the oil collection pan 1f out of the cylinder core protective steel sleeve 100a, an oil pipe through hole 111a is provided on the flange base plate 111, and the oil drain pipe 1g passes through the oil pipe through hole 111a.

[0043] To avoid the venting connector 1d and oil inlet / outlet connectors 1e on the underside of piston cylinder 1 (see also...) Figure 1 and Figure 2 The oil pipe and the sleeve wall 112, 122 of the two half cylinder core protective steel sleeves 110, 120 are each provided with a clearance notch 112a, 122a in the circumferential direction. The top of the clearance notch 112a, 122a is open.

[0044] A slot 112b and a slot 122b (the aforementioned first slot) are provided on the left and right sides of the clearance notches 112a and 122a respectively. In addition, the half cylinder core protective steel sleeves 110 and 120 each include a protective cover 160a and a protective cover 160b (the aforementioned first protective cover) in the same number as the clearance notches 112a and 122a. The left and right sides of the protective covers 160a and 160b are respectively inserted into a pair of slots 112b and 122b. When it is necessary to replace the venting connector and the oil inlet / outlet connector of the pressurized oil cylinder 1, the venting connector and the oil inlet / outlet connector of the pressurized oil cylinder 1 can be replaced by pulling out the protective covers 112b and 122b.

[0045] Additionally, a guide groove 112c is provided on the sleeve wall 112 of the semi-cylinder core protective steel sleeve 110, and a guide component 1c is also included, which is installed on the cylinder body 1b of the piston cylinder 1. The guide component 1c is embedded in the guide groove 112c to guide the installation of the cylinder core protective steel sleeve 100 and prevent the cylinder core protective steel sleeve 100 from rotating or shifting during operation. A slot 112d (the aforementioned second slot) is also provided on each of the left and right sides of the guide groove 112c, and a protective cover 160c (the aforementioned second protective cover) is also inserted into the pair of slots 112d on the left and right sides.

Claims

1. A cylinder core protection device for a continuous press press hydraulic cylinder, comprising a piston cylinder and a plunger cylinder, characterized in that, It also includes a cylinder core protective steel sleeve installed on the piston cylinder or plunger cylinder. The cylinder core protective steel sleeve is made of metal. The cylinder core on the piston cylinder or plunger cylinder passes through the cylinder core protective steel sleeve. The oil collection plate on the cylinder core installed on the piston cylinder or plunger cylinder is located inside the cylinder core protective steel sleeve.

2. The cylinder core protection device for a continuous press press cylinder according to claim 1, characterized in that, A cylinder core hole is provided at the bottom of the cylinder core protective steel sleeve for the cylinder core of the piston cylinder or plunger cylinder to pass through. A flange base plate is provided around the cylinder core hole, and an oil pipe outlet hole is provided on the flange base plate. The oil drain pipe on the oil collection plate passes through the oil pipe outlet hole.

3. The cylinder core protection device for a continuous press press cylinder according to claim 2, characterized in that, At least one clearance notch is provided circumferentially on the sleeve wall of the cylinder core protective steel sleeve to avoid the venting joint, oil inlet / outlet joint and oil pipe on the piston cylinder.

4. The cylinder core protection device for a continuous press press cylinder according to claim 3, characterized in that, The top of the clearance gap is open.

5. The cylinder core protection device for a continuous press press cylinder according to claim 3, characterized in that, It also includes a first protective cover equal in number to the clearance notch. A first slot is provided on each of the left and right sides of the clearance notch. The left and right sides of the first protective cover are inserted into the first slot. When it is necessary to replace the venting connector and oil inlet / outlet connector on the pressurizing cylinder, the first protective cover can be pulled out to replace the venting connector and oil inlet / outlet connector of the pressurizing cylinder.

6. A cylinder core protection device for a continuous press press cylinder according to claim 5, characterized in that, A guide groove is provided on the sleeve wall of the cylinder core protective steel sleeve, and a guide component is also provided on the cylinder body of the pressurizing cylinder. The guide component is embedded in the guide groove to guide the cylinder core protective steel sleeve and prevent the cylinder core protective steel sleeve from rotating or shifting during operation.

7. A cylinder core protection device for a continuous press press cylinder according to claim 6, characterized in that, A second slot is also provided on each of the left and right sides of the guide groove, and a second protective cover is also provided, with the left and right sides of the second protective cover inserted into the second slot.

8. A cylinder core protection device for a continuous press press cylinder according to any one of claims 1 to 7, characterized in that, The cylinder core protective steel sleeve adopts a two-half structure design, and the two halves are fixed together by fasteners.

Images