Combined mandrel

Abstract

According to the technical scheme, the combined core shaft comprises a main body assembly, an upper shaft body, a first fixing piece, a limiting piece, an installation rod, a transmission piece, an installation disc, a connecting rod, a first spring, a release groove, a first installation piece, a second spring and a limiting column, the first fixing piece is located on the outer side of the upper shaft body, and the limiting piece is located on the outer side of the second spring; the limiting piece is located at the top of the first fixing piece, the mounting rod is located on the inner wall of the limiting piece, and the transmission piece is fixed to the outer side of the mounting rod. By arranging the connecting assembly, the length of the combined mandrel can be conveniently adjusted, so that the universality and the flexibility of the mandrel are improved, and the combined mandrel can meet the requirements of products of different sizes or specifications.

Description

Technical Field

[0001] This utility model relates to the field of mandrel technology, and in particular to a combined mandrel. Background Technology

[0002] The mandrel assembly, a key component in an extruder, primarily supports and houses other rotating parts, ensuring the extruder's normal operation. It provides stable support for components such as the screw, enabling the extrusion process to proceed smoothly. During production, if product specifications change and the mandrel length cannot be adjusted, a mandrel of a different length must be replaced. This not only increases the time and cost of mandrel replacement but may also affect the continuity and stability of the production line, thus reducing production efficiency. If the upper and lower shafts of the mandrel assembly are difficult to disassemble, more time and manpower will be required for equipment maintenance or component replacement. This not only increases the complexity of maintenance work but also raises maintenance costs. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] In view of the problems existing in the above and / or existing combined mandrels, this utility model is proposed.

[0005] Therefore, the problem to be solved by this utility model is that the length of the mandrel cannot be adjusted and the disassembly of the upper and lower shafts is difficult in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a combined mandrel, comprising a main body assembly including an upper shaft, a mounting plate, a connecting rod, a first spring, a release groove, a first mounting component, a second spring, and a limiting post. The mounting plate is fixed to the bottom of the upper shaft, the connecting rod slides on the inner wall of the mounting plate, the first spring is disposed on the outer side of the connecting rod, the release groove is formed on the inner wall of the mounting plate, the first mounting component is located on the inner wall of the upper shaft, the second spring is disposed at the bottom of the first mounting component, and the limiting post is located at the bottom of the first mounting component; and...

[0007] A connecting assembly is located at the bottom of the upper shaft body and includes a lower shaft body, a telescopic rod, a limiting rod, a limiting hole, and a second fixing member. The lower shaft body is fixed to the bottom of the mounting plate, the telescopic rod slides on the inner wall of the lower shaft body, the limiting rod is engaged with the inner wall of the lower shaft body, the limiting hole is opened in the inner wall of the lower shaft body, and the second fixing member is installed on the outer side of the lower shaft body.

[0008] In a preferred embodiment of the combined mandrel of this utility model, the main body component further includes a first fixing member, a limiting member, a mounting rod, and a transmission member. The first fixing member is located on the outside of the upper shaft body, the limiting member is located on the top of the first fixing member, the mounting rod is located on the inner wall of the limiting member, and the transmission member is fixed to the outside of the mounting rod.

[0009] In a preferred embodiment of the combined mandrel of this utility model, the connecting assembly further includes a support member, a first connector, a second mounting member, and a second connector. The support member is disposed on the inner wall of the telescopic rod, the first connector is located on the inner wall of the telescopic rod, the second mounting member is located on the outer side of the telescopic rod, and the second connector is located at one end of the telescopic rod.

[0010] In a preferred embodiment of the combined mandrel described in this utility model, the first fixing member includes a support ring and a connecting post, the support ring being fixed to the outer side of the upper shaft body, and the connecting post being fixed to the inner wall of the support ring.

[0011] In a preferred embodiment of the combined mandrel described in this utility model, the limiting component includes a limiting disc and a limiting ring. The limiting disc is installed at one end of the upper shaft body, and the inner wall of the limiting disc is fixedly connected to the outer side of the connecting column. The limiting ring is fixed to the top of the limiting disc.

[0012] In a preferred embodiment of the combined mandrel described in this utility model, the transmission component includes a gear, which is fixed to the outside of the mounting rod.

[0013] In a preferred embodiment of the combined mandrel described in this utility model, the first mounting component includes a first bolt and a mounting block. The first bolt is fixed to the inner wall of the upper shaft body, and the mounting block is mounted on the inner wall of the upper shaft body. The outer side of the first bolt is fixedly connected to the inner wall of the mounting block.

[0014] In a preferred embodiment of the combined mandrel described in this utility model, the second fixing member includes a fixing plate and a fixing bolt. The fixing plate is disposed on the outer side of the lower shaft body, and the inner wall of the fixing plate is slidably connected to the outer side of the limiting rod. The fixing bolt is threadedly connected to the inner wall of the fixing plate, and the outer side of the fixing bolt is threadedly connected to the inner wall of the lower shaft body.

[0015] In a preferred embodiment of the combined mandrel described in this utility model, the support member includes a limiting block, which is fixed to the inner wall of the telescopic rod.

[0016] In a preferred embodiment of the combined mandrel of this utility model, the first connecting member includes a worm gear fixed to the outside of the telescopic rod; the second mounting member includes a connecting disc and a connecting plate, the connecting disc being fixed to the outside of the telescopic rod and the connecting plate being mounted on one side of the connecting disc; the second connecting member includes a screw fixed to the bottom of the connecting plate.

[0017] The beneficial effects of this utility model are as follows: by setting the main component, it is easy to install and disassemble the upper and lower shafts, thereby reducing the time and manpower required when maintaining the equipment or replacing parts. By setting the connecting component, it is easy to combine the non-adjustable length of the mandrel, thereby improving the versatility and flexibility of the mandrel, so that it can adapt to the needs of products of different sizes or specifications. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is a structural diagram of the combined mandrel.

[0020] Figure 2 This is another perspective view of the overall structure of the combined mandrel.

[0021] Figure 3 This is a structural diagram of the first mounting component of the combined mandrel.

[0022] Figure 4 for Figure 3 The enlarged structural diagram at point A is shown.

[0023] Figure 5 This is a structural diagram of the first connecting component of the combined mandrel.

[0024] Figure 6 for Figure 5 A magnified structural diagram of point B is shown.

[0025] Figure labels: 100, Main component; 101, Upper shaft; 102, First fixing component; 102a, Support ring; 102b, Connecting column; 103, Limiting component; 103a, Limiting plate; 103b, Limiting ring; 104, Mounting rod; 105, Transmission component; 105a, Gear; 106, Mounting plate; 107, Connecting rod; 108, First spring; 109, Release groove; 110, First mounting component; 110a, First bolt; 110b, Mounting block; 111 112. Second spring; 203. Limiting post; 204. Connecting assembly; 205. Lower shaft; 206. Telescopic rod; 207. Limiting rod; 208. Limiting hole; 209. Second fixing part; 200. Fixing plate; 200. Fixing bolt; 201. Support part; 202. Limiting block; 203. First connecting part; 204. Worm gear; 205. Second mounting part; 206. Connecting plate; 207. Second connecting part; 208. Threaded rod. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Example 1

[0030] Reference Figures 1-6 This is the first embodiment of the present invention, which provides a combined mandrel including a main body component 100 and a connecting component 200.

[0031] The main component 100 includes an upper shaft 101, a connecting rod 107, a first spring 108, a release groove 109, a first mounting member 110, a second spring 111, and a limiting post 112. The first fixing member 102 is located on the outside of the upper shaft 101, the limiting member 103 is located at the top of the first fixing member 102, the mounting rod 104 is located on the inner wall of the limiting member 103, the transmission member 105 is fixed to the outside of the mounting rod 104, the mounting plate 106 is fixed to the bottom of the upper shaft 101, the connecting rod 107 slides on the inner wall of the mounting plate 106, the first spring 108 is located on the outside of the connecting rod 107, the release groove 109 is formed on the inner wall of the mounting plate 106, the first mounting member 110 is located on the inner wall of the upper shaft 101, the second spring 111 is located at the bottom of the first mounting member 110, and the limiting post 112 is located at the bottom of the first mounting member 110; and...

[0032] By setting the upper shaft 101, the first fixing member 102 can be easily installed. By setting the mounting plate 106, the connecting rod 107 can be easily installed. By setting the connecting rod 107, the first spring 108 can be easily installed. The cooperation between the first spring 108 and the connecting rod 107 can easily fix the two sets of mounting plates. By setting the release groove 109, the connecting rod 107 can be easily rotated to release the two sets of mounting plates 106. By setting the first mounting member 110, the second spring 111 and the limiting post 112 can be easily installed. By setting the second spring 111, the telescopic rod 202 can be easily pushed to move, thereby changing the shaft length. By setting the limiting post 112, the telescopic rod 202 can be kept stable when it moves, preventing the telescopic rod 202 from tilting when it moves.

[0033] The connecting assembly 200 is located at the bottom of the upper shaft 101 and includes a lower shaft 201, a telescopic rod 202, a limiting rod 203, a limiting hole 204, and a second fixing member 205. The lower shaft 201 is fixed to the bottom of the mounting plate 106. The telescopic rod 202 slides on the inner wall of the lower shaft 201, and one end of the telescopic rod 202 is connected to one end of the second spring 111 through a rotating shaft. The limiting rod 203 is engaged with the inner wall of the lower shaft 201. The limiting hole 204 is opened on the inner wall of the lower shaft 201. The second fixing member 205 is installed on the outer side of the lower shaft 201.

[0034] By setting the lower shaft 201, the telescopic rod 202 can be easily installed. By setting the telescopic rod 202, the overall length can be easily changed. By setting the limiting rod 203, the telescopic rod 202 can be easily limited, thereby maintaining the stability of the telescopic rod 202 after adjustment and preventing the telescopic rod 202 from sliding up and down. By setting the limiting hole 204, the telescopic rod 202 can be easily limited in conjunction with the limiting rod 203. By setting the second fixing part 205, the limiting rod 203 can be easily fixed, thereby fixing the telescopic rod 202 and preventing the telescopic rod 202 from sliding up and down after adjustment.

[0035] Example 2

[0036] Reference Figure 2 , Figure 3 and Figure 4 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0037] Specifically, the main component 100 also includes a first fixing member 102, a limiting member 103, a mounting rod 104, and a transmission member 105. The first fixing member 102 is located on the outside of the upper shaft 101, the limiting member 103 is located on the top of the first fixing member 102, the mounting rod 104 is located on the inner wall of the limiting member 103, and the transmission member 105 is fixed to the outside of the mounting rod 104.

[0038] By providing the first fixing member 102, the limiting member 103 can be easily installed. By providing the limiting member 103, the shaft center can be kept stable, preventing the mounting rod 104 from tilting. By providing the mounting rod 104, it is easy to connect other components. By providing the transmission member 105, power can be easily transmitted.

[0039] Specifically, the connecting assembly 200 also includes a support member 206, a first connector 207, a second mounting member 208, and a second connector 209. The support member 206 is disposed on the inner wall of the telescopic rod 202, the first connector 207 is located on the inner wall of the telescopic rod 202, the second mounting member 208 is located on the outer side of the telescopic rod 202, and the second connector 209 is located at one end of the telescopic rod 202.

[0040] By setting the support member 206, it is easy to cooperate with the limiting post 112 to limit the stroke of the telescopic rod 202 and prevent damage to the shaft. By setting the first connecting member 207, it is easy to change the direction of transmission when needed. By setting the second mounting member 208, it is easy to install the second connecting member 209. By setting the second connecting member 209, it is easy to install the whole.

[0041] Specifically, the first fixing member 102 includes a support ring 102a and a connecting post 102b. The support ring 102a is fixed to the outer side of the upper shaft 101, and the connecting post 102b is fixed to the inner wall of the support ring 102a.

[0042] By setting the support ring 102a, the connecting column 102b can be easily installed, and by setting the connecting column 102b, the limiting plate 103a can be easily installed.

[0043] Specifically, the limiting component 103 includes a limiting disk 103a and a limiting ring 103b. The limiting disk 103a is installed at one end of the upper shaft 101, and the inner wall of the limiting disk 103a is fixedly connected to the outer side of the connecting column 102b. The limiting ring 103b is fixed to the top of the limiting disk 103a.

[0044] By setting the limiting plate 103a, it is easy to install the limiting ring 103b. By setting the limiting ring 103b, it is easy to limit the mounting rod 104 and prevent the mounting rod 104 from tilting when rotating or pushing.

[0045] Specifically, the transmission component 105 includes a gear 105a, which is fixed to the outside of the mounting rod 104.

[0046] By setting gear 105a, it is easy to transmit power to other components when needed.

[0047] Specifically, the first mounting component 110 includes a first bolt 110a and a mounting block 110b. The first bolt 110a is fixed to the inner wall of the upper shaft 101, and the mounting block 110b is installed on the inner wall of the upper shaft 101. The outer side of the first bolt 110a is fixedly connected to the inner wall of the mounting block 110b.

[0048] By setting the first bolt 110a, the mounting block 110b can be installed easily. By setting the mounting block 110b, the second spring 111 and the limiting post 112 can be installed easily.

[0049] Example 3

[0050] Reference Figure 5 and Figure 6 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0051] Specifically, the second fixing member 205 includes a fixing plate 205a and a fixing bolt 205b. The fixing plate 205a is disposed on the outer side of the lower shaft 201, and the inner wall of the fixing plate 205a is slidably connected to the outer side of the limiting rod 203. The fixing bolt 205b is threadedly connected to the inner wall of the fixing plate 205a, and the outer side of the fixing bolt 205b is threadedly connected to the inner wall of the lower shaft 201.

[0052] By setting the fixing plate 205a, the vertical stroke of the limiting rod 203 can be easily fixed to prevent it from shaking after it is fixed. By setting the fixing bolt 205b, the fixing plate 205a can be easily fixed, thereby making it easier to fix the limiting rod 203, and in turn, making it easier to fix the telescopic rod 202.

[0053] Specifically, the support member 206 includes a limiting block 206a, which is fixed to the inner wall of the telescopic rod 202.

[0054] By setting the limit block 206a, the stroke of the telescopic rod 202 can be limited to prevent damage to the inside of the shaft.

[0055] Specifically, the first connecting member 207 includes a worm gear 207a, which is fixed to the outside of the telescopic rod 202; the second mounting member 208 includes a connecting plate 208a and a connecting plate 208b, which is fixed to the outside of the telescopic rod 202 and mounted on one side of the connecting plate 208a; and the second connecting member 209 includes a screw 209a, which is fixed to the bottom of the connecting plate 208b.

[0056] By incorporating the worm gear 207a, the direction of power transmission can be easily changed, facilitating the provision of power to other components when needed. The connecting plate 208a facilitates the installation of the connecting plate 208b, which in turn facilitates the installation of the second connecting piece 209. The screw 209a facilitates the overall assembly and also makes disassembly more convenient.

[0057] When using the device, first bring it to the desired installation location and adjust it to the appropriate length. Then, rotate the fixing bolt 205b to release the locking rod 203. After releasing the telescopic rod 202, rotate it and then press it down. The rotation of the telescopic rod 202 will cause the locking rod 203 to disengage from the limiting hole 204. Then, push the telescopic rod 202 up and down to move the locking rod 203 to the next limiting hole 204 for positioning. After adjusting the height, rotate the fixing bolt 205b again to move the fixing plate 205. Fixing the limiting rod 203 completes the height adjustment. Once everything is ready, align the screw 209a with the instrument to be installed, then rotate the whole assembly to tighten the screw 209a to complete the installation of the spindle. After the work is completed, when it is necessary to disassemble the upper shaft 101 and the lower shaft 201, first rotate the connecting rod 107 until it fits the shape of the release groove 109, then release it. At this time, the first spring 108 will lift the connecting rod 107. Then, rotate the connecting bolts on the inner wall of the mounting plate 106 to complete the disassembly.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A combination mandrel characterized by: The utility model relates to a kind of main body assembly (100), including upper shaft body (101), mounting disc (106), connecting rod (107), first spring (108), release slot (109), first mounting (110), second spring (111) and limit column (112), the mounting disc (106) is fixed on the bottom of the upper shaft body (101), the connecting rod (107) is slid in the inner wall of the mounting disc (106), the first spring (108) is arranged on the outside of the connecting rod (107), the release slot (109) is opened in the inner wall of the mounting disc (106), the first mounting (110) is located in the inner wall of the upper shaft body (101), the second spring (111) is arranged on the bottom of the first mounting (110), and the limit column (112) is located in the bottom of the first mounting (110). The utility model relates to a kind of connecting assembly (200), and the connecting assembly (200) is located in the bottom of the upper shaft body (101), including lower shaft body (201), telescopic rod (202), limit rod (203), limit hole (204) and second fixing (205), the lower shaft body (201) is fixed on the bottom of the mounting disc (106), the telescopic rod (202) is slid in the inner wall of the lower shaft body (201), the limit rod (203) is connected in the inner wall of the lower shaft body (201), the limit hole (204) is opened in the inner wall of the lower shaft body (201), and the second fixing (205) is installed on the outside of the lower shaft body (201). The main body assembly (100) further includes first fixing (102), limit piece (103), mounting rod (104) and transmission part (105), the first fixing (102) is located on the outside of the upper shaft body (101), the limit piece (103) is located on the top of the first fixing (102), the mounting rod (104) is located in the inner wall of the limit piece (103), and the transmission part (105) is fixed on the outside of the mounting rod (104).

2. The combination mandrel of claim 1 wherein: The connecting assembly (200) further includes support (206), first connecting piece (207), second mounting (208) and second connecting piece (209), the support (206) is arranged in the inner wall of the telescopic rod (202), the first connecting piece (207) is located in the inner wall of the telescopic rod (202), the second mounting (208) is located on the outside of the telescopic rod (202), and the second connecting piece (209) is located in one end of the telescopic rod (202).

3. The combination mandrel of claim 1 wherein: The first fixing (102) includes support ring (102a) and connecting column (102b), the support ring (102a) is fixed on the outside of the upper shaft body (101), and the connecting column (102b) is fixed in the inner wall of the support ring (102a).

4. The combination mandrel of claim 2 wherein: ​ 5. The combination mandrel of claim 2 wherein: The limiting piece (103) comprises a limiting disc (103a) and a limiting ring (103b), the limiting disc (103a) is installed at one end of the upper shaft body (101), and the inner wall of the limiting disc (103a) is fixedly connected with the outer side of the connecting column (102b), the limiting ring (103b) is fixed to the top of the limiting disc (103a).

6. The combination mandrel of claim 2 wherein: The transmission member (105) comprises a gear (105a), and the gear (105a) is fixed to the outer side of the mounting rod (104).

7. The combination mandrel of claim 1 wherein: The first mounting member (110) comprises a first bolt (110a) and a mounting block (110b), the first bolt (110a) is fixed to the inner wall of the upper shaft body (101), the mounting block (110b) is installed on the inner wall of the upper shaft body (101), and the outer side of the first bolt (110a) is fixedly connected with the inner wall of the mounting block (110b).

8. The combination mandrel of claim 1 wherein: The second fixing member (205) comprises a fixing plate (205a) and a fixing bolt (205b), the fixing plate (205a) is arranged on the outer side of the lower shaft body (201), the inner wall of the fixing plate (205a) is slidably connected with the outer side of the limiting rod (203), the fixing bolt (205b) is threadedly connected with the inner wall of the fixing plate (205a), and the outer side of the fixing bolt (205b) is threadedly connected with the inner wall of the lower shaft body (201).

9. The combination mandrel of claim 3 wherein: The supporting member (206) comprises a limiting block (206a), and the limiting block (206a) is fixed to the inner wall of the telescopic rod (202).

10. The combination mandrel of claim 3 wherein: The first connecting member (207) comprises a worm (207a), the worm (207a) is fixed to the outer side of the telescopic rod (202), the second mounting member (208) comprises a connecting disc (208a) and a connecting plate (208b), the connecting disc (208a) is fixed to the outer side of the telescopic rod (202), the connecting plate (208b) is installed on one side of the connecting disc (208a), and the second connecting member (209) comprises a screw rod (209a), and the screw rod (209a) is fixed to the bottom of the connecting plate (208b).

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