Sealing structure for charging door of internal mixer

Abstract

The utility model belongs to the technical field of internal mixers, and discloses a sealing structure of a charging door of an internal mixer. Comprising a left side plate, a charging door, a charging door shaft, a right side plate and a sealing plate automatically jacked by a spring, the left side plate and the right side plate are arranged on two sides of the charging door; the sealing plates automatically jacked by the springs are arranged on the two sides of the feeding door and are in contact with and pressed against the left side plate or the right side plate; one end of the charging door is connected with the charging door shaft, and the other end of the charging door rotates by taking the charging door shaft as a rotating shaft and can be opened and closed. The multiple sealing plates automatically jacked by the springs are symmetrically fixed to the two sides of the feeding door. The feeding door sealing structure has the advantages of being simple in structure, stable, reliable and the like, the two sides of the feeding door of the internal mixer can be well sealed, and the problem that use of the internal mixer is affected by dust leakage caused by sealing failure is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to internal mixer technical field especially relates to a kind of internal mixer feeding door sealing structure. BACKGROUND

[0002] Internal mixer is the equipment that rubber product enterprise universally adopts, material is all thrown to its inside by feeding door when internal mixer is used. The feeding door of internal mixer is frequently opened and closed in work, and the powder added in internal mixer is extremely easy to leak, so spring automatic taut sealing plate is designed on the both sides of feeding door, and the structure of using sealing plate to seal. When using a period of time, the sealing plate of elongated is easy to deform or shift and cause not to be sealed, and then cause the phenomenon of dust leakage of sealing failure. SUMMARY

[0003] The utility model aims at providing a kind of internal mixer feeding door sealing structure with simple structure, stable and reliable.

[0004] The technical scheme of the utility model is as follows: a kind of internal mixer feeding door sealing structure, including left side plate 1, feeding door 2, feeding door shaft 3, right side plate 4 and spring automatic taut sealing plate;Left side plate 1 and right side plate 3 are arranged on the both sides of feeding door 2;Spring automatic taut sealing plate is arranged on the both sides of feeding door 2, and is in contact with left side plate 1 or right side plate 3 and is pressed tightly;Feeding door 2 one end is connected with feeding door shaft 3, with feeding door shaft 3 as pivot, and the other end of feeding door 2 rotates.

[0005] Spring automatic taut sealing plate includes sealing plate 5, pressing plate 6, taut plate 7, spring 8 and guide rod 9;Guide rod 9 is fixed on the side surface of feeding door 2;Spring 8 one end is fixed on guide rod 9, and the other end contacts the end face of one end of taut plate 7;The other end of taut plate 7 is pressed on sealing plate 5, so that sealing plate 5 is taut on left side plate 1 and right side plate 4 respectively;Pressing plate 6 is fixed on the side surface of feeding door 2, and a notch and multiple through holes are formed on it;The through hole is communicated with the notch, and the other end of taut plate 7 passes through the through hole and taut sealing plate 5 in the notch.

[0006] Taut plate 7 is provided with multiple, and the other end of each taut plate 7 passes through a through hole, and sealing plate 5 can only move horizontally in the notch.

[0007] Sealing plate 5 is elongated whole board, divided into multiple sections, and the segmented position is provided with angle, and each section is taut by multiple taut plates 7, so that each section can be pressed tightly.

[0008] Sealing plate 5 is three-section type.

[0009] The length of the sealing plate is consistent with the length of the slot, and the length of the pressing plate 6 is greater than the length of the slot, the slot is open from one end of the pressing plate 6 to the other end of the pressing plate 6, and is not connected to the other end of the pressing plate 6, and the sealing plate 5 cannot move upward in the slot.

[0010] The two ends of the feeding door shaft 3 are respectively provided with a notch corresponding to one end of the pressing plate 6, and relative movement is not generated between the two, so that the sealing plate 5 cannot move downward.

[0011] The sealing structure of the feeding door of the internal mixer has the advantages of simple structure, stability and reliability, and can well seal both sides of the feeding door of the internal mixer, thereby avoiding the problem that dust leakage caused by sealing failure affects the use of the internal mixer. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a schematic view of a sealing structure of a feeding door of an internal mixer;

[0013] Figure 2 is Figure 1 a B-B sectional view of the sealing structure of the feeding door of the internal mixer;

[0014] Figure 3 is Figure 1 an A-A sectional view of the sealing structure of the feeding door of the internal mixer;

[0015] Figure 4 is a schematic view of a sealing plate structure;

[0016] In the drawings: 1. left side plate; 2. feeding door; 3. feeding door shaft; 4. right side plate; 5. sealing plate; 6. pressing plate; 7. tightening plate; 8. spring; 9. guide rod. DETAILED DESCRIPTION

[0017] The specific embodiments of the utility model are further explained below in combination with examples and drawings, but are not used to limit the utility model.

[0018] As Figure 1 shown, a sealing structure of a feeding door of an internal mixer includes a left side plate 1, a feeding door 2, a feeding door shaft 3, a right side plate 4, and a spring-automatically-tightened sealing plate. The spring-automatically-tightened sealing plate includes a sealing plate 5, a pressing plate 6, a tightening plate 7, a spring 8, and a guide rod 9. The left side plate 1 and the right side plate 3 are located on both sides of the feeding door 2, and the feeding door 2 can be opened and closed. The sealing plate 5, the pressing plate 6, the tightening plate 7, the spring 8, and the guide rod 9 are multiple pieces and are fixed symmetrically on both sides of the feeding door 2.

[0019] One end of the spring 8 is fixed on the guide rod 9, and the other end is abutted on the tightening plate 7, so that the tightening plate 7 abuts the sealing plate 5 on the left side plate 1 or the right side plate 4.

[0020] The pressure plate 6 is fixed on both sides of the feeding gate 2, and has a slot and multiple through holes. The through holes communicate with the slot, and the other end of the clamping plate 7 passes through the through holes to clamp the sealing plate 5 against the left side plate 1 or the right side plate 4. The sealing plate 5 can only move laterally within the slot.

[0021] The length of the sealing plate is the same as the length of the groove; the length of the pressure plate 6 is greater than the length of the groove. The groove starts from one end of the pressure plate 6 and opens towards the other end of the pressure plate 6, but does not connect to the other end of the pressure plate 6. The sealing plate 5 cannot move upward within the groove.

[0022] The feeding gate shaft 3 has a notch at each end, which matches the notch of the pressure plate 6, preventing the sealing plate 5 from moving downwards.

[0023] The sealing plate 5 is composed of a long, thin plate divided into three sections at a certain angle. Each section is reinforced by multiple clamping plates 7, ensuring that the sections press against each other. This allows the entire sealing plate 5 to fit tightly against the left side plate 1 and the right side plate 3. This avoids the problem of leakage caused by later deformation of the long, thin plate.

[0024] like Figure 2 As shown, the sealing plate 5 is limited by a pressure plate 6 at the top and a feeding door hinge 3 at the bottom, which avoids leakage caused by the sealing plate 5 moving around.

[0025] The technical solution adopted by this utility model to achieve the above objectives is as follows:

[0026] A sealing structure for the feeding door of an internal mixer includes a left side plate 1, a feeding door 2, a feeding door shaft 3, a right side plate 4, a sealing plate 5, a pressure plate 6, a top-tightening plate 7, a spring 8, and a guide rod 9. The left side plate 1 and the right side plate 3 are located on both sides of the feeding door 2, allowing the feeding door 2 to be opened and closed. Multiple sealing plates 5, pressure plates 6, top-tightening plates 7, springs 8, and guide rods 9 are symmetrically fixed on both sides of the feeding door 2.

[0027] One end of the spring 8 is fixed to the guide rod 9, and the other end is pressed against the top plate 7, so that the top plate 7 presses the sealing plate 5 against the left side plate 1 and the right side plate 4.

[0028] The pressure plate 6 is fixed on both sides of the feeding gate 2. One side of the pressure plate 6 has a groove, and the sealing plate 5 is installed in this groove and can only move laterally within the groove.

[0029] The pressure plate 6 has multiple through holes on the other side, which are connected to the slots on the other side, so that the clamping plate 7 can pass through the through holes to clamp the sealing plate 5 onto the left side plate 1 and the right side plate 4.

[0030] The groove on one side of the pressure plate 6 is not open at the top, so the sealing plate 5 inside the groove cannot move upward.

[0031] The two ends of the filling door shaft 3 are each provided with a notch, which is consistent with the notch of the pressing plate 6, so that the sealing plate 5 cannot move downward.

[0032] The sealing plate 5 is divided into three sections by an elongated whole plate, and the positions of the sections have a certain angle. Each section has multiple pressing plates 7 for pressing, so that the sections can be pressed against each other, and the whole sealing plate 5 can be closely attached to the left plate 1 and the right plate 3. In this way, the problem of leakage caused by poor sealing due to deformation of the elongated plate in the later stage is avoided.

[0033] The top of the sealing plate 5 is limited by the pressing plate 6, and the bottom is limited by the filling door shaft 3, so that the problem of leakage caused by the sealing plate 5 moving is avoided.

Claims

1. An internal mixer addition port seal structure characterized by, The sealing structure of the feeding door of the internal mixer comprises a left side plate (1), a feeding door (2), a feeding door shaft (3), a right side plate (4) and a spring-automatically-tightened sealing plate; the left side plate (1) and the right side plate (4) are arranged on the two sides of the feeding door (2); the spring-automatically-tightened sealing plate is arranged on the two sides of the feeding door (2) and is in contact with the left side plate (1) or the right side plate (4) to be pressed tightly; one end of the feeding door (2) is connected with the feeding door shaft (3), and the other end of the feeding door (2) rotates with the feeding door shaft (3) as the rotating shaft.

2. The internal mixer addition port seal structure according to claim 1, characterized by, The spring-automatically-tightened sealing plate comprises a sealing plate (5), a pressing plate (6), a tight plate (7), a spring (8) and a guide rod (9); the guide rod (9) is fixed on the side surface of the feeding door (2); one end of the spring (8) is fixed on the guide rod (9), and the other end is in contact with the end surface of one end of the tight plate (7); the other end of the tight plate (7) abuts against the sealing plate (5), so that the sealing plate (5) is tightly pressed on the left side plate (1) and the right side plate (4) respectively; the pressing plate (6) is fixed on the side surface of the feeding door (2), and a notch and a plurality of through holes are formed in the pressing plate (6); the through holes are communicated with the notch, and the other end of the tight plate (7) passes through the through hole to tightly press the sealing plate (5) in the notch.

3. The internal mixer addition port seal structure according to claim 2, characterized by, A plurality of tight plates (7) are arranged, and the other end of each tight plate (7) passes through a through hole, and the sealing plate (5) can only move horizontally in the notch.

4. The internal mixer addition port seal construction of claim 1 wherein, The sealing plate (5) is an elongated whole plate and is divided into multiple sections, and the segmented positions are provided with angles, and each section is tightly pressed by a plurality of tight plates (7), so that each section can be tightly pressed.

5. The internal mixer addition port seal structure according to claim 4, characterized by, The sealing plate (5) is a three-section type.

6. A banjo door seal for an internal mixer according to claim 4 or 5, characterized in that The length of the sealing plate (5) is consistent with the length of the notch; the length of the pressing plate (6) is greater than the length of the notch, the notch is opened from one end of the pressing plate (6) to the other end of the pressing plate (6) and is not connected to the other end of the pressing plate (6), and the sealing plate (5) cannot move upward in the notch.

7. The internal mixer addition port seal construction of claim 1 wherein, The feeding door shaft (3) is provided with a notch at each end, corresponding to one end of the pressing plate (6), and no relative movement is generated between the two, so that the sealing plate (5) cannot move downward.

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