RTV screw unit convenient to maintain

Abstract

The RTV screw unit convenient to maintain comprises an outer shell and a screw shell, the screw shell is arranged in the outer shell, the outer shell comprises a front shell body, a middle shell body and a rear shell body, the middle shell body is arranged between the front shell body and the rear shell body, the front shell body, the middle shell body and the rear shell body form an installation cavity, the screw shell body is fixed to the inner side of the middle shell body, a discharging opening is formed in the middle shell body, and the screw shell body is fixed to the outer side of the middle shell body. Limiting holes are symmetrically formed in the ends of the middle shell, the mounting pipe is arranged on the side, close to the middle shell, of the front shell and penetrates through one limiting hole to extend into the middle shell, a mounting block is arranged on the side, close to the middle shell, of the rear shell, a mounting hole is formed in the mounting block, one side of the mounting block is inserted into one limiting hole in the middle shell, and the other side of the mounting block is inserted into the other limiting hole in the middle shell. A transverse pulling bolt is in threaded connection in the mounting hole, and one end of the transverse pulling bolt penetrates through the mounting hole and is in threaded connection to the mounting pipe; and through the design of the shell, the screw rod shell and the transverse pulling bolt, disassembly is easy and convenient, and maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of RTV production equipment, and more specifically to an RTV screw unit which is easy to maintain. Background Art

[0002] Room temperature vulcanized silicone rubber (RTV) has one or two functional groups at both ends of the molecular chain (sometimes in the middle as well). Under certain conditions (moisture in the air or an appropriate catalyst), these functional groups can react to form a high molecular weight cross-linked structure. Currently in the RTV production process, since the screw extruder has a heating part and a cooling part inside, the interior needs to be frequently inspected and maintained to ensure the normal operation of the heating part and the cooling part. However, the current screw extruder housing is generally provided with a single-side inspection port. However, this design has insufficient operating space for complex inspection and maintenance in the screw extruder, and is troublesome to disassemble and inspect. The utility model proposes a new solution to the above problems. Utility Model Content

[0003] In view of the problems existing in the prior art, the purpose of the utility model is to provide an RTV screw unit that is easy to maintain, so as to solve the technical problems mentioned in the background technology.

[0004] In order to solve the above problems, the utility model adopts the following technical solutions:

[0005] A RTV screw unit that is easy to maintain, comprises an outer shell and a screw shell, wherein the screw shell is arranged in the outer shell, the outer shell comprises a front shell, a middle shell and a rear shell, the middle shell is arranged between the front shell and the rear shell, the front shell, the middle shell and the rear shell form an installation cavity, the screw shell is fixed on the inner side of the middle shell, and the middle shell is provided with a discharge port, and the end of the middle shell is symmetrically provided with limiting holes, a mounting tube is provided on the side of the front shell close to the middle shell, and the mounting tube extends into the middle shell through one of the limiting holes, and a mounting block is provided on the side of the rear shell close to the middle shell, and a mounting hole is provided on the mounting block, one side of the mounting block is plugged into one of the limiting holes on the middle shell, a transverse pull bolt is threadedly connected in the mounting hole, and one end of the transverse pull bolt passes through the mounting hole and is threadedly connected to the mounting tube.

[0006] Preferably, a rubber column is provided between the mounting block and the mounting tube, and the transverse tension bolt passes through the rubber column.

[0007] In any of the above solutions, preferably, a sealing plug is inserted into the opening of the mounting hole.

[0008] In any of the above schemes, preferably, the screw housing is two sets of twin-screw lumens.

[0009] In any of the above schemes, preferably, the screw housing is a twin-screw lumen.

[0010] In any of the above solutions, preferably, the discharge port is arranged at a position on one side of the middle shell corresponding to the twin-screw tube cavity.

[0011] Compared with the prior art, the advantages of the present invention are:

[0012] The design of the housing, screw housing and transverse tension bolts in the utility model allows the housing parts to be separated quickly by removing the transverse tension bolts if the connection parts need to be maintained or replaced, thereby inspecting the components inside the housing, and the disassembly is simple and convenient; in addition, the transverse tension bolts also provide a certain transverse tension strength for the housing, reducing deformation of the housing at the joints. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the overall structure of an RTV screw unit that is easy to maintain.

[0014] Description of the numbers in the figure:

[0015] 1. Outer shell; 2. Screw shell; 101. Front shell; 102. Middle shell; 103. Rear shell; 104. Discharge port; 105. Limiting hole; 106. Mounting tube; 107. Mounting block; 108. Mounting hole; 109. Horizontal tension bolt; 110. Rubber column; 111. Sealing plug. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0017] Example:

[0018] See also Figure 1The invention discloses an RTV screw unit which is easy to maintain, comprising a housing 1 and a screw housing 2. The screw housing 2 is arranged in the housing 1. The housing 1 comprises a front housing 101, a middle housing 102 and a rear housing 103. The middle housing 102 is arranged between the front housing 101 and the rear housing 103. The front housing 101, the middle housing 102 and the rear housing 103 form an installation cavity. The screw housing 2 is fixed to the inner side of the middle housing 102, and a discharge port 104 is arranged on the middle housing 102. The end of the middle housing 102 is symmetrically provided with a limiting hole 105. The front housing 101 is close to the front housing 101. A mounting tube 106 is provided on one side of the middle shell 102, and the mounting tube 106 extends into the middle shell 102 through one of the limiting holes 105. A mounting block 107 is provided on one side of the rear shell 103 close to the middle shell, and a mounting hole 108 is provided on the mounting block 107. One side of the mounting block 107 is plugged into one of the limiting holes 105 on the middle shell 102, and a horizontal tension bolt 109 is threadedly connected in the mounting hole 108. One end of the horizontal tension bolt 109 passes through the mounting hole 108 and is threadedly connected to the mounting tube 106;

[0019] The design of the housing 1, the screw housing 2 and the transverse tie bolts 109 is such that if the connection parts need to be maintained or replaced, the parts of the housing 1 can be quickly separated by removing the transverse tie bolts 109, thereby inspecting the parts inside the housing 1, and the disassembly is simple and convenient; in addition, the transverse tie bolts 109 also provide a certain transverse tension strength for the housing 1, reducing the deformation of the housing 1 at the joints.

[0020] In this embodiment, a rubber column 110 is provided between the mounting block 107 and the mounting tube 106, and the horizontal tension bolt 109 passes through the rubber column 110; the rubber column 110 is used to increase the support points between the mounting block 107 and the mounting tube 106 to avoid excessive installation of the horizontal tension bolt 109 and deformation of the mounting block 107 and the mounting tube 106.

[0021] In this embodiment, a sealing plug 111 is inserted into the opening of the mounting hole 108 ; the sealing plug 111 is used to protect the mounting hole 108 to prevent contaminants from clogging the mounting hole 108 .

[0022] In this embodiment, the screw housing 2 is composed of two sets of twin screw lumens; the two sets of twin screw lumens can simultaneously produce two sets of RTV.

[0023] In this embodiment, the screw housing 2 is a twin-screw tube chamber; single-group RTV production can be performed.

[0024] In this embodiment, the discharge port 104 is disposed on one side of the middle shell 102 at a position corresponding to the screw cavity.

[0025] The working process of the utility model is as follows:

[0026] When it is necessary to disassemble and repair the interior of the shell 1, remove the sealing plug 111, then remove the transverse tension bolts 109, and then remove the front shell 101 and the middle shell 102 from both sides of the rear shell 103. After inspecting the equipment in the shell 1, reassemble it. The design of the shell 1, the screw shell 2 and the transverse tension bolts 109 is such that if maintenance or replacement of the connecting parts is required, the transverse tension bolts 109 can be removed to quickly separate the parts of the shell 1, so that the components in the shell 1 can be inspected, and the disassembly is simple and convenient. In addition, the transverse tension bolts 109 also provide a certain transverse tension strength for the shell 1, reducing the deformation of the shell 1 at the joints.

[0027] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. An RTV screw unit that is easy to maintain, comprising a housing (1) and a screw housing (2), wherein the screw housing (2) is arranged in the housing (1), and characterized in that: The housing (1) comprises a front housing (101), a middle housing (102) and a rear housing (103); the middle housing (102) is arranged between the front housing (101) and the rear housing (103); the front housing (101), the middle housing (102) and the rear housing (103) form a mounting cavity; the screw housing (2) is fixed to the inner side of the middle housing (102); a discharge port (104) is arranged on the middle housing (102); limiting holes (105) are symmetrically provided at the ends of the middle housing (102); a mounting tube (106) is provided on the side of the front housing (101) close to the middle housing (102); (106), the mounting tube (106) passes through one of the limiting holes (105) and extends into the middle shell (102); a mounting block (107) is provided on one side of the rear shell (103) close to the middle shell; a mounting hole (108) is provided on the mounting block (107); one side of the mounting block (107) is plugged into one of the limiting holes (105) on the middle shell (102); a horizontal tension bolt (109) is threadedly connected in the mounting hole (108); one end of the horizontal tension bolt (109) passes through the mounting hole (108) and is threadedly connected to the mounting tube (106).

2. The RTV screw unit easy to maintain according to claim 1, characterized in that: A rubber column (110) is provided between the mounting block (107) and the mounting tube (106), and the transverse tension bolt (109) passes through the rubber column (110).

3. The RTV screw unit easy to maintain according to claim 1, characterized in that: A sealing plug (111) is inserted into the opening of the mounting hole (108).

4. The RTV screw unit easy to maintain according to claim 1, characterized in that: The screw housing (2) comprises two sets of twin-screw cavities.

5. The RTV screw unit easy to maintain according to claim 1, characterized in that: The screw housing (2) is a twin-screw tube cavity.

6. The RTV screw unit easy to maintain according to claim 4 or 5, characterized in that: The discharge port (104) is arranged on one side of the middle shell (102) at a position corresponding to the twin-screw tube cavity.

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