Injection molding opening sealing cover tool

Abstract

The utility model relates to a cover sealing tool for an injection molding opening. The cover sealing tool comprises an adjusting seat, a supporting plate, an adjusting rod, a hand wheel, a connecting seat and a plugging cover, the adjusting seat is adjustably connected with a positioning plate of the bracket-free hydraulic foaming platform; one end of the supporting plate is fixedly connected with the adjusting seat, and an adjusting hole penetrating through the upper end face and the lower end face of the supporting plate is machined in the supporting plate and is a threaded hole. The adjusting rod is located in the adjusting hole, and an external thread is machined on the outer wall of the adjusting rod and screwed with the adjusting hole in a threaded mode. The hand wheel is fixedly connected with the upper end of the adjusting rod; the connecting seat is connected with the lower end of the adjusting rod; and the plugging cover is fixed on the connecting seat. The operation is convenient, the production efficiency of the thermal insulation pipe is improved, and the quality and safety problems are effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal insulation pipe processing equipment, in particular to an injection molding port sealing tool. Background Art

[0002] When processing and producing polyurethane foam plastic direct buried insulation pipe, first use a pipe threading machine to insert the steel pipe into the protective pipe to make the protective pipe concentric with the steel pipe; then use a non-support hydraulic foaming platform to fill polyurethane in the gap between the sealed steel pipe and the protective pipe. Existing non-support hydraulic foaming platforms, such as the non-support hydraulic foaming platform disclosed in the utility model patent with publication number CN 208773935 U; do not have a structure for sealing the injection port, after the injection of the foaming layer is completed, the injection port is generally sealed by manually stepping on the injection port. Due to the long-term high-altitude operation of personnel, there are safety hazards, and the manual pressure strength, angle, and time are difficult to control, and the sealing effect is not good. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an injection port sealing tool which can seal the injection port of the insulation pipe and improve the foaming quality.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: an injection port capping tooling, comprising an adjusting seat, a supporting plate, an adjusting rod, a hand wheel, a connecting seat and a blocking cover;

[0005] The adjustment seat is adjustably connected to the positioning plate of the bracketless hydraulic foaming platform;

[0006] One end of the support plate is fixedly connected to the adjustment seat, and the support plate is processed with an adjustment hole that passes through the upper and lower end surfaces thereof, and the adjustment hole is a threaded hole;

[0007] The adjusting rod is located in the adjusting hole, and an external thread is processed on the outer wall of the adjusting rod, which is screwed with the thread of the adjusting hole;

[0008] The hand wheel is fixedly connected to the upper end of the adjusting rod;

[0009] The connecting seat is connected to the lower end of the adjusting rod;

[0010] The blocking cover is fixed on the connecting seat.

[0011] In the above-mentioned injection port capping tool, the positioning plate is a rectangular steel tube; the adjusting seat has a rectangular shape, one end of the adjusting seat is inserted into the inner cavity of the positioning plate, and the two can slide relative to each other; the other end extends out of the positioning plate.

[0012] In the above-mentioned injection port sealing tool, the adjustment seat is made of a rectangular steel pipe.

[0013] In the above-mentioned injection port sealing tool, the connecting seat is connected to the lower end of the adjusting rod through a ball head universal joint.

[0014] In the above-mentioned injection port sealing tool, the sealing cover is made of rubber.

[0015] In the above-mentioned injection port sealing tool, the sealing cover is an annular structure; an outwardly convex, annular clamping platform is arranged on the outer side wall of the connecting seat, and the number of the clamping platforms is two, and a clamping groove for accommodating and clamping the sealing cover is formed between the two clamping platforms.

[0016] In the above-mentioned injection port sealing tool, an auxiliary pressing component is provided on the upper side of the sealing cover for pressing the outer side of the sealing cover.

[0017] In the above-mentioned injection molding port sealing tool, the auxiliary pressing assembly includes a connecting sleeve, a pressing rod and an elastic element;

[0018] The connecting seat is cylindrical in shape, and a thread is processed on the outer wall thereof; the connecting sleeve is sleeved on the outer side of the connecting seat, and the two are threadedly connected;

[0019] The upper end of the pressure rod is hinged to the connecting sleeve;

[0020] The elastic element is located at the lower side of the connecting sleeve, the pressure rod and the elastic element correspond one to one, one end of the elastic element is connected to the connecting seat, and the other end is connected to the pressure rod.

[0021] In the above-mentioned injection port sealing tool, the elastic element is a spring.

[0022] In the above-mentioned injection port sealing tool, the number of the pressure rods and elastic elements is four.

[0023] Due to the adoption of the above technical solution, the injection molding port capping tooling has the following advantages:

[0024] The injection port capping tooling has a simple structure and is easy to manufacture and implement;

[0025] The injection port capping tooling has a reasonable structure, and directly uses the positioning plate of the non-bracket hydraulic foaming platform for support, adjustment and guidance, reducing the production cost of the tooling;

[0026] The injection port sealing tooling is easy to operate, improves the production efficiency of the insulation pipe, and effectively avoids the occurrence of quality and safety problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0029] Figure 2 It is a structural schematic diagram of the auxiliary pressing assembly in the embodiment of the utility model.

[0030] In the figure:

[0031] 1-adjusting seat; 2-supporting plate; 3-adjusting rod; 4-hand wheel; 5-connecting seat; 6-blocking cover; 7-card table; 8-lower connecting table; 9-elastic element; 10-pressing rod; 11-connecting sleeve; 12-upper connecting table. DETAILED DESCRIPTION

[0032] An injection molding mouth sealing tool such as Figure 1 As shown, it includes an adjusting seat 1, a supporting plate 2, an adjusting rod 3, a hand wheel 4, a connecting seat 5 and a blocking cover 6.

[0033] The adjustment seat 1 is used to connect the positioning plate of the bracketless hydraulic foaming platform. Since the positioning plate is in direct contact with the protective tube, the positioning plate is directly used to support the entire tooling, which can also simplify the equipment structure. Since rectangular steel pipes have the characteristics of good structural stability, the positioning plates of existing bracketless hydraulic foaming platforms generally use rectangular steel pipes. Therefore, the outer shape of the adjustment seat 1 is rectangular, which is adapted to the inner cavity shape of the rectangular steel pipe. One end of the adjustment seat 1 is inserted into the inner cavity of the positioning plate, and the two can slide relative to each other; the other end extends out of the positioning plate. The adjustment seat 1 can also use a rectangular steel pipe, or a solid cubic rod.

[0034] One end of the support plate 2 is fixedly connected to the adjustment seat 1, for example, by welding. The support plate 2 is processed with an adjustment hole that passes through the upper and lower end surfaces thereof, and the adjustment hole is a threaded hole.

[0035] The adjusting rod 3 is located in the adjusting hole, and an external thread is processed on its outer wall, which is screwed with the adjusting hole thread. The upper end of the adjusting rod 3 is fixedly connected to the hand wheel 4, and the lower end is connected to the connecting seat 5 through a ball joint. The structure of the ball joint is a prior art and will not be described in detail here. The blocking cover 6 is fixed on the connecting seat 5.

[0036] When performing the injection operation, the hand wheel 4 is turned to make the blocking cover 6 leave the protection tube a certain distance, and the adjusting seat 1 is pulled out to make the blocking cover 6 leave the injection port; after the injection is completed, the adjusting seat 1 is pulled out to make the blocking cover 6 correspond to the injection port, and the hand wheel 4 is turned again to make the blocking cover 6 fit the outer wall of the protection tube. Since the connecting seat 5 and the adjusting rod 3 are connected by a ball head universal joint, the blocking cover 6 can adapt well to the shape of the protection tube, so as to obtain a better blocking effect.

[0037] The plugging cover 6 is preferably made of rubber material, has a certain strength and deformation, can be well adapted to the shape of the protection tube, and achieve the expected plugging effect. The plugging cover 6 can adopt an annular structure, and an outwardly convex, annular clamping platform 7 is arranged on the outer side wall of the connecting seat 5. The number of the clamping platforms 7 is two, and a clamping groove for accommodating and clamping the plugging cover 6 is formed between the two clamping platforms 7.

[0038] The inventor found in practice that when the outer diameter of the pouring port and the sealing cover 6 are almost the same, the outer edge of the sealing cover 6 will curl up under the action of the internal pressure, and the sealing cannot be achieved well; therefore, the injection port sealing tooling is optimized, and an auxiliary clamping assembly is set on the upper side of the sealing cover 6 to press the outer side of the sealing cover 6, especially the outer area of ​​the pouring port, to achieve an ideal sealing effect.

[0039] like Figure 2 As shown, the auxiliary pressing assembly includes a connecting sleeve 11, a pressing rod 10 and an elastic element 9.

[0040] The connecting sleeve 11 is sleeved on the outer side of the connecting seat 5. The two can be fixedly connected, but preferably adjustable. For example, the connecting seat 5 is cylindrical in shape, and a thread is processed on the outer wall thereof. The connecting sleeve 11 is threadedly connected to the connecting seat 5, so that the connecting sleeve 11 can move axially relative to the connecting seat 5.

[0041] The upper end of the pressure rod 10 is hinged to the connecting sleeve 11, and the elastic element 9 is located at the lower side of the connecting sleeve 11. One end of the elastic element 9 is connected to the connecting seat 5, and the other end is connected to the pressure rod 10. The elastic element 9 can be an elastic rope body, a belt body, or a spring. Under the action of the elastic element 9, the lower end of the pressure rod 10 is always pressed on the upper side of the blocking cover 6.

[0042] Specifically, an upper connecting platform 12 is provided on the outer wall of the connecting sleeve 11, and the upper connecting platform 12 is preferably U-shaped; the upper end of the pressure rod 10 is rotatably mounted in the upper connecting platform 12. A lower connecting platform 8 is provided on the clamping platform 7 located on the upper side of the blocking cover 6 for connecting with the elastic element 9.

[0043] The pressure rods 10 and the elastic elements 9 correspond one to one. The number of the pressure rods 10 and the elastic elements 9 is preferably 4 and evenly distributed in the circumferential direction of the blocking cover 6, so that there are pressure points in the axial and radial directions of the protective tube.

[0044] When in use, the position of the lower end of the pressure rod 10 can be adjusted according to the diameter of the injection port; when adjusting, the elastic element 9 needs to be separated from the pressure rod 10; after adjusting to the right position, the elastic element 9 and the pressure rod 10 corresponding to the position are connected.

[0045] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An injection molding port capping tool, characterized in that: It comprises an adjustment seat (1), a support plate (2), an adjustment rod (3), a hand wheel (4), a connecting seat (5) and a blocking cover (6); The adjustment seat (1) is adjustably connected to the positioning plate of the support-free hydraulic foaming platform; One end of the support plate (2) is fixedly connected to the adjustment seat (1), and an adjustment hole penetrating the upper and lower end surfaces of the support plate (2) is processed, and the adjustment hole is a threaded hole; The adjusting rod (3) is located in the adjusting hole, and has an external thread processed on its outer wall, which is screwed into the thread of the adjusting hole; The hand wheel (4) is fixedly connected to the upper end of the adjusting rod (3); The connecting seat (5) is connected to the lower end of the adjusting rod (3); The blocking cover (6) is fixed on the connecting seat (5).

2. The injection molding port sealing tool as claimed in claim 1, characterized in that: The positioning plate is a rectangular steel tube; the outer shape of the adjustment seat (1) is rectangular; one end of the adjustment seat (1) is inserted into the inner cavity of the positioning plate, and the two can slide relative to each other; the other end extends out of the positioning plate.

3. The injection molding port sealing tool as claimed in claim 2, characterized in that: The adjustment seat (1) is made of a rectangular steel pipe.

4. The injection molding port sealing tool as claimed in claim 1, characterized in that: The connecting seat (5) is connected to the lower end of the adjusting rod (3) via a ball joint.

5. The injection molding port sealing tool as claimed in claim 1, characterized in that: The sealing cover (6) is made of rubber.

6. The injection molding port sealing tool as claimed in claim 5, characterized in that: The blocking cover (6) is of an annular structure; an outwardly convex annular clamping platform (7) is provided on the outer side wall of the connecting seat (5); the number of the clamping platforms (7) is two, and a clamping groove for accommodating and clamping the blocking cover (6) is formed between the two clamping platforms (7).

7. The injection molding port sealing tool as claimed in claim 5, characterized in that: An auxiliary pressing assembly is provided on the upper side of the blocking cover (6) for pressing the outer side of the blocking cover (6).

8. The injection molding port sealing tool as claimed in claim 7, characterized in that: The auxiliary pressing assembly comprises a connecting sleeve (11), a pressing rod (10) and an elastic element (9); The connecting seat (5) is cylindrical in shape, and has a threaded outer wall. The connecting sleeve (11) is sleeved on the outer side of the connecting seat (5), and the two are threadedly connected. The upper end of the pressure rod (10) is hinged to the connecting sleeve (11); The elastic element (9) is located at the lower side of the connecting sleeve (11), the pressure rod (10) and the elastic element (9) correspond one to one, one end of the elastic element (9) is connected to the connecting seat (5), and the other end is connected to the pressure rod (10).

9. The injection molding port sealing tool as claimed in claim 8, characterized in that: The elastic element (9) is a spring.

10. The injection molding port sealing tool as claimed in claim 8, characterized in that: The number of the pressure rods (10) and elastic elements (9) is four.

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