Floating type lower top peg structure of internal mixer

Abstract

The utility model discloses a floating type lower top peg structure of an internal mixer, which comprises a gate seat and a gate top, and the gate top is connected with the gate seat in a floating manner, so that the gate top can float within a certain range; a first counter bore is formed in the top surface of the gate seat; a spring and a spring plug are mounted in the first counter bore; in a free state, the upper end of the spring plug is higher than the top surface of the gate seat; the door top is installed on the top face of the door seat and presses the spring plug. A positioning pin is arranged on the top face of the door seat, a second counter bore is formed in the position, corresponding to the positioning pin, of the door top, the upper end of the positioning pin is inserted into the second counter bore, and the diameter of the second counter bore is larger than that of the positioning pin. A gap a is reserved when the door seat and the door top are assembled, and the gap a ranges from 0.2 mm to 0.3 mm. The door seat and the door top are connected through a bolt and a nut, a gap b is formed between the door seat and the nut, and the gap b is 0.2-0.3 mm; the door top is connected with the door seat in a floating mode, when the door is closed, the door top can be automatically aligned, inclined face sealing of the door top and the mixing chamber is achieved, and the sealing effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of internal mixers, specifically to a floating bottom bolt structure for internal mixers. Background Technology

[0002] Currently, the generally known bottom bolt structure of an internal mixer typically consists of a top bolt, a seat, a locking pad, and a locking device. The top bolt and seat are connected by bolts and are fixed and cannot be moved. Figure 1 As shown. During the processing and assembly process, the precision requirements for the sealing slope between the top of the door and the mixing chamber are extremely high, necessitating secondary grinding and mixing of the sealing surface. If the grinding and mixing precision is insufficient, leakage of glue and powder will occur on the sealing slope during the rubber mixing process, resulting in serious waste and significant pollution to the working environment. Utility Model Content

[0003] The purpose of this utility model is to provide a floating bottom bolt structure for an internal mixer, which aims to improve the problem that the bottom bolt device of the existing internal mixer is fixed to the door seat with bolts and cannot be moved, which leads to the problem that the door top and the sealing slope of the mixing chamber are prone to leakage of glue and powder due to insufficient grinding precision.

[0004] This utility model is implemented as follows:

[0005] A floating bottom bolt structure for an internal mixer includes a gate seat and a gate top, wherein the gate top is floatingly connected to the gate seat, allowing the gate top to float within a certain range.

[0006] Preferably, the top surface of the door seat is provided with a first countersunk hole, and a spring and a spring plug are installed in the first countersunk hole.

[0007] Preferably, in the free state, the upper end of the spring plug is higher than the top surface of the door seat.

[0008] Preferably, the door top is mounted on the top surface of the door seat and presses down on the spring plug.

[0009] Preferably, a positioning pin is provided on the top surface of the door seat, and a second countersunk hole is provided on the top of the door corresponding to the position of the positioning pin. The upper end of the positioning pin is inserted into the second countersunk hole, and the diameter of the second countersunk hole is larger than the diameter of the positioning pin.

[0010] Preferably, a gap a is left when the door seat and the door top are assembled.

[0011] Preferably, the gap a is 0.2-0.3 mm.

[0012] Preferably, the door seat and the door top are connected by bolts and nuts.

[0013] Preferably, there is a gap b between the door seat and the nut.

[0014] Preferably, the gap b is 0.2-0.3 mm.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the top of the door and the door seat of this utility model are floatingly connected, and when the door is closed, the top of the door can automatically align itself, achieving a sloping seal between the top of the door and the mixing chamber, thus improving the sealing effect. Moreover, it eliminates the need for assembly and grinding, greatly reducing labor intensity and time. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the existing internal mixer's bottom top bolt structure;

[0017] Figure 2 This is a schematic diagram of the floating bottom bolt structure of the internal mixer provided by this utility model.

[0018] In the diagram: 1. Door seat; 2. Door top; 3. Positioning pin; 4. Spring; 5. Spring plug; 6. Bolt; 7. Nut; 8. Mixing chamber. Detailed implementation method:

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0021] Example 1

[0022] like Figure 2 As shown, a floating bottom bolt structure for an internal mixer includes a door seat 1, a door top 2, a positioning pin 3, a spring 4, a spring plug 5, a bolt 6, and a nut 7.

[0023] like Figure 2As shown, the top surface of the door seat 1 has two sets of first countersunk holes symmetrically formed, located on the left and right halves of the door seat 1 respectively. Each set of first countersunk holes includes at least one first countersunk hole, and each first countersunk hole is fitted with a spring 4 and a spring plug 5. In the free state, the upper end of the spring plug 5 is higher than the top surface of the door seat 1. The door top 2 is installed on the top surface of the door seat 1 and presses down on the spring plug 5. A gap a of 0.2mm is left when assembling the door seat 1 and the door top 2. A positioning pin 3 is provided on the top surface of the door seat 1, and a second countersunk hole is provided on the door top 2 corresponding to the position of the positioning pin 3. The upper end of the positioning pin 3 is inserted into the second countersunk hole, and the diameter of the second countersunk hole is slightly larger than the diameter of the positioning pin 3, which can be 1mm larger than the diameter of the positioning pin 3. The door seat 1 and the door top 2 are connected by multiple sets of bolts 6 and nuts 7, and there is a gap b of 0.2mm between the door seat 1 and the nuts 7. Through the above configuration, the top of the door 2 is floatingly connected to the door seat 1, allowing the top of the door 2 to float within a certain range. Sealing ramps are provided on both sides of the top of the door 2, and a matching ramp is provided on the mixing chamber 8 of the internal mixer to match the sealing ramps of the top of the door 2. Thus, when the door is closed, the sealing ramp of the top of the door 2 closely engages with the matching ramp of the mixing chamber 8, and since the top of the door 2 is floating, it can automatically align itself.

[0024] Example 2

[0025] like Figure 2 As shown, a floating bottom bolt structure for an internal mixer includes a door seat 1, a door top 2, a positioning pin 3, a spring 4, a spring plug 5, a bolt 6, and a nut 7.

[0026] like Figure 2 As shown, the top surface of the door seat 1 has two sets of first countersunk holes symmetrically formed, located on the left and right halves of the door seat 1 respectively. Each set of first countersunk holes includes at least one first countersunk hole, and each first countersunk hole is fitted with a spring 4 and a spring plug 5. In the free state, the upper end of the spring plug 5 is higher than the top surface of the door seat 1. The door top 2 is installed on the top surface of the door seat 1 and presses down on the spring plug 5. A gap a of 0.25mm is left when assembling the door seat 1 and the door top 2. A positioning pin 3 is provided on the top surface of the door seat 1, and a second countersunk hole is provided on the door top 2 corresponding to the position of the positioning pin 3. The upper end of the positioning pin 3 is inserted into the second countersunk hole, and the diameter of the second countersunk hole is slightly larger than the diameter of the positioning pin 3, which can be 1.5mm larger than the diameter of the positioning pin 3. The door seat 1 and the door top 2 are connected by multiple sets of bolts 6 and nuts 7, and there is a gap b of 0.25mm between the door seat 1 and the nuts 7. Through the above configuration, the top of the door 2 is floatingly connected to the door seat 1, allowing the top of the door 2 to float within a certain range. Sealing ramps are provided on both sides of the top of the door 2, and a matching ramp is provided on the mixing chamber 8 of the internal mixer to match the sealing ramps of the top of the door 2. Thus, when the door is closed, the sealing ramp of the top of the door 2 closely engages with the matching ramp of the mixing chamber 8, and since the top of the door 2 is floating, it can automatically align itself.

[0027] Example 3

[0028] like Figure 2 As shown, a floating bottom bolt structure for an internal mixer includes a door seat 1, a door top 2, a positioning pin 3, a spring 4, a spring plug 5, a bolt 6, and a nut 7.

[0029] like Figure 2 As shown, the top surface of the door seat 1 has two sets of first countersunk holes symmetrically formed, located on the left and right halves of the door seat 1 respectively. Each set of first countersunk holes includes at least one first countersunk hole, and each first countersunk hole is fitted with a spring 4 and a spring plug 5. In the free state, the upper end of the spring plug 5 is higher than the top surface of the door seat 1. The door top 2 is installed on the top surface of the door seat 1 and presses down on the spring plug 5. A gap a of 0.3mm is left when assembling the door seat 1 and the door top 2. A positioning pin 3 is provided on the top surface of the door seat 1, and a second countersunk hole is provided on the door top 2 corresponding to the position of the positioning pin 3. The upper end of the positioning pin 3 is inserted into the second countersunk hole, and the diameter of the second countersunk hole is slightly larger than the diameter of the positioning pin 3, which can be 2mm larger than the diameter of the positioning pin 3. The door seat 1 and the door top 2 are connected by multiple sets of bolts 6 and nuts 7, and there is a gap b of 0.3mm between the door seat 1 and the nuts 7. Through the above configuration, the top of the door 2 is floatingly connected to the door seat 1, allowing the top of the door 2 to float within a certain range. Sealing ramps are provided on both sides of the top of the door 2, and a matching ramp is provided on the mixing chamber 8 of the internal mixer to match the sealing ramps of the top of the door 2. Thus, when the door is closed, the sealing ramp of the top of the door 2 closely engages with the matching ramp of the mixing chamber 8, and since the top of the door 2 is floating, it can automatically align itself.

[0030] In summary, the door top 2 and door seat 1 of this invention are floatingly connected. When the door is closed, the door top 2 can automatically align itself, achieving a sloped seal between the door top 2 and the mixing chamber 8, thus improving the sealing effect. Moreover, it eliminates the need for assembly and fitting, greatly reducing labor intensity and time.

[0031] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A floating bottom bolt structure for an internal mixer, comprising a gate seat (1) and a gate top (2), characterized in that, The top of the door (2) is floatingly connected to the door seat (1), so that the top of the door (2) can float within a certain range; the top surface of the door seat (1) is provided with a first countersunk hole, in which a spring (4) and a spring plug (5) are installed; in the free state, the upper end of the spring plug (5) is higher than the top surface of the door seat (1); the top of the door (2) is installed on the top surface of the door seat (1) and presses down the spring plug (5); the top surface of the door seat (1) is provided with a positioning pin (3), and the top of the door (2) is provided with a second countersunk hole corresponding to the position of the positioning pin (3), the upper end of the positioning pin (3) is inserted into the second countersunk hole, and the diameter of the second countersunk hole is larger than the diameter of the positioning pin (3).

2. The floating bottom bolt structure for a mixing mill according to claim 1, characterized in that, The door seat (1) and the door top (2) are assembled with a gap a.

3. The floating bottom bolt structure for a mixing mill according to claim 2, characterized in that, The gap a is 0.2-0.3 mm.

4. The floating bottom bolt structure for a mixing mill according to claim 1, characterized in that, The door seat (1) and the door top (2) are connected by bolts (6) and nuts (7).

5. The floating bottom bolt structure for an internal mixer according to claim 4, characterized in that, There is a gap b between the gate seat (1) and the nut (7).

6. The floating bottom bolt structure for an internal mixer according to claim 5, characterized in that, The gap b is 0.2-0.3 mm.

Images