Device for heating thermal shrinkage knife handle

Abstract

The utility model relates to a device for heating a thermal shrinkage knife handle, which comprises a base, a knife handle seat and a heating part, and is characterized by further comprising a support arranged on the base and provided with a connecting piece capable of connecting the heating part on the support so as to keep a preset distance between the heating part and the base, the connecting piece comprises a connecting part which at least partially penetrates through the bracket and can slide in the bracket; a locking device used for locking the connecting part is further arranged on the support, and an operator can pull up or push down relative to the support by switching the relative locking state or the relative unlocking state of the locking device so that the heating part can move between the initial position and the heating position. Compared with the prior art, the heating device has the advantages that the support is used for replacing the arm of an operator, operation of the operator is facilitated, operation is safer, the mode that the heating part moves between the initial position and the heating position is achieved, and the heating device is simple in structure, low in cost and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting tools, in particular to a device for heating and shrinking a tool handle. Background Art

[0002] The heat shrinkable tool holder is an important component in high-speed finishing. It uses the principle of thermal expansion and contraction to load the tool into the tool holder, which can solve the extremely important problems of balance, runout accuracy and clamping strength in high-speed finishing, and has therefore been widely used. For example, the heat shrinkable tool holder provided in the Chinese utility model patent "A heat shrinkable combined tool with fast tool head replacement" with patent number CN201721246583.1 (publication number CN207615680U) can complete the loading and unloading of the tool by heating the clamping part of the heat shrinkable tool holder for a short time.

[0003] At present, knife handle heat shrinking machines are often used to heat heat shrink knife handles. The heating method is usually electromagnetic induction heating or warm air heating. Among them, the electromagnetic induction heating method has a fast heating speed and high efficiency, but it may reduce the service life of the heat shrink knife handle due to excessively high temperature, and it cannot heat materials with poor electromagnetic properties such as stainless steel well; correspondingly, the temperature of warm air heating is relatively low, but it is safer, and the knife handle cooling time is shorter, which is conducive to extending the life of the heat shrink knife handle. However, no matter which principle the knife handle heat shrinking machine adopts, it has a relatively expensive market price. For example, the heat shrink knife handle heating machine provided in the Chinese utility model patent "A Heat Shrink Knife Handle Heating Machine" with patent number CN202220243062.5 (publication number CN216939231U) adopts a driving mechanism such as a motor or a cylinder to move the heating component to the heating position. Considering other supporting control systems, the cost of this solution is relatively high.

[0004] To this end, in order to reduce costs, some employees choose to use portable heating devices such as handheld hot air guns, or hold the air outlet pipe of the company's original heating device to actively heat the heat shrink knife handle. However, this method requires the employee to operate the heating device with at least one hand to heat the heat shrink knife handle, and use the other hand to install the tool, which is inconvenient and easy to get burned by the heating device. Therefore, further improvement of the existing technology is needed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a device for heating a heat shrinkable tool handle which has a relatively low cost, can improve the safety of the operator's work and is easy to operate in view of the above-mentioned existing technical status.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: the device for heating the heat shrinkable tool handle includes:

[0007] Base;

[0008] A tool handle seat, arranged on the base, for placing a heat shrink tool handle;

[0009] A heating part, arranged above the tool handle seat, for heating the clamping end of the heat shrink tool handle;

[0010] It is characterized by also including:

[0011] A bracket is arranged on the base and is provided with a connecting member capable of connecting the heating part thereto so that the heating part maintains a preset distance from the base, wherein the connecting member includes a connecting portion that at least partially passes through the bracket and can slide therein:

[0012] A locking device is provided on the bracket and is used to lock the connecting part. An operator switches the relative locking or unlocking state of the locking device so as to pull up or push down relative to the bracket to realize the movement of the heating part between the initial position and the heating position.

[0013] In order to facilitate the operator to switch the state of the locking device, preferably, the locking device includes a pressing piece, and the operator can switch the locking device from a locked state to an unlocked state by pressing the pressing piece. Taking into account the need to save costs as a whole, the device is designed to be pressed by the operator. In addition, this design is also beneficial for the operator to keep the pressing piece continuously pressed while holding the locking device, that is, the locking device can be kept in an unlocked state while holding the locking device. In this way, the locking device can be conveniently held and the connecting piece and the heating part can be moved between the initial position and the heating position.

[0014] Further design, in order to realize the function of the locking device with a relatively simple structure, preferably, the pressing member includes a fixed end rotatably connected to the connecting member, and also includes a pressing end relative to the fixed end, and the middle part of the pressing member is also provided with an action portion that can be sleeved on the bracket, and the locking device also includes an elastic member, which is arranged between the pressing member and the connecting member, so that the pressing member and the connecting member always have a tendency to move away from each other, wherein the fixed end can be rotatably connected to the connecting member by means such as hinges, and the elastic member can be selected from, for example, a spring , rubber parts and other elastic parts. Under the action of the elastic parts, the pressing part and the connecting part always have a tendency to move away from each other, but due to the existence of the fixed end, the pressing part can only tilt around the fixed end, which will cause an interaction force between the action part and the bracket to lock the connecting part of the connecting part, so that the connecting part cannot move on the bracket. It should be noted that there are many functional schemes for realizing the locking device through elastic parts, for example, it can be realized through a relatively complex connecting rod mechanism, and the purpose of the design of this application is that the structure of the scheme is extremely simple, and it has the advantages of low cost, easy operation and simple maintenance.

[0015] In order to simplify the structure of the locking device and facilitate disassembly and maintenance, preferably, the locking device also includes a limiting member, which is fixedly connected to the connecting member, and the interior of the limiting member and the end surface corresponding to the connecting member together form a limiting space, and the fixed end is inserted in the limiting space. Such a design further simplifies the structure of the locking device and enables the pressing member to become an independent component that can be easily disassembled and maintained while meeting the function.

[0016] In order to facilitate the installation of the elastic part, preferably, the bracket is in the form of a support rod, and the elastic part is sleeved on the bracket. The bracket is set to be a support rod type considering that the elastic part usually does not have a large size, and the bracket is set to be a support rod type, which makes it easy for elastic parts with hollow interiors such as springs to be directly sleeved therein. This solution has a simple structure and is easy to disassemble and assemble. The elastic part cannot be separated from the locking device during operation, and is stable and reliable.

[0017] In order for the heating part to heat the clamping end of the heat shrink handle, preferably, it also includes a heat source for providing heat to the heating part, and the heat source is fixedly connected to the connecting piece. Correspondingly, the connecting piece includes a fixing part for fixing the heat source, wherein the heat source refers to a portable heating device such as a hot air gun, or a hose for blowing hot air extending from some small heating devices, or an electromagnetic heating device. In fact, the position of the heating part may be different depending on the heat source. For example, when the heat source is a hot air gun, the heating part may be installed on the air outlet of the hot air gun and indirectly connected to the connecting piece; when the heat source is a hose of the heating device, the heating part may be directly fixedly connected to the connecting piece and move with the hose.

[0018] Further design, in order to heat the clamping end of the heat shrink handle more efficiently, preferably, the heat source includes an output part for outputting heat, the heating part includes a matching part fixedly connected to the output part, and a heating space is formed inside the heating part, and the heating space can gather the heat provided by the heat source to heat the clamping end of the heat shrink handle. For example, when the heat source is a common hot air gun, the air outlet of the hot air gun is the output part, and the heating space is provided to gather the heat output by the hot air gun around the clamping end of the heat shrink handle, thereby improving the heating efficiency.

[0019] In order to facilitate operators to use the device, an operating table for placing the base is also included. In fact, the base can also be an operating table, but the base is designed to be a smaller structure and an additional operating table is provided to facilitate moving the device to other required places. With this design, even if the operating table is larger, it will not affect the transportation of the device itself.

[0020] It is further designed that in order to place items required for the operation, a storage slot for placing items is partially opened on the operating table. The storage slot can be used to place items such as a power strip for powering a heat source, and knives that are directly placed on a flat surface and are easy to roll.

[0021] Compared with the prior art, the advantages of the utility model are:

[0022] 1. Use the bracket to replace the operator's arm, so that the heating part maintains a preset distance from the base, which is convenient for employees to operate and safer;

[0023] 2. Through the connecting piece and the locking device, the operator can pull up or push down the bracket to move the heating part between the initial position and the heating position. The structure is simple, the cost is low, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of a device for heating a heat shrinkable tool handle in Example 1 of the utility model;

[0025] Figure 2 This is a schematic diagram of the exploded structure of the connecting piece and the locking device in Example 1 of the utility model;

[0026] Figure 3 This is a schematic diagram of the locking device in Example 1 of the utility model in a locked state;

[0027] Figure 4 This is a schematic diagram of the locking device in the unlocked state in Embodiment 1 of the utility model;

[0028] Figure 5 This is a schematic diagram of the state in which the heating part in Example 1 of the utility model is in the initial position;

[0029] Figure 6 This is a schematic diagram of the state in which the heating part in Embodiment 1 of the utility model is in the heating position;

[0030] Figure 7 This is a schematic diagram of the structure of the device for heating the heat shrinkable tool handle in Example 2 of the utility model. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with specific embodiments.

[0032] Example 1

[0033] like Figures 1 to 4 As shown, it is a preferred embodiment of the utility model. The device for heating the heat shrinkable handle in this embodiment includes a base 1, a handle seat 2 for placing the heat shrinkable handle 21 is arranged on the base 1, and a heating part 3 for heating the clamping end 22 of the heat shrinkable handle 21 is arranged above the handle seat 2. A bracket 4 is also arranged on the base, and a connecting member 41 for keeping the heating part 3 at a preset distance from the base 1 is arranged on the bracket 4, and the connecting member 4 includes a connecting part 411 that at least partially passes through the bracket 4 and can slide therein. Further, the device for heating the heat shrinkable handle in this embodiment also includes a locking device 5 arranged on the bracket, and the locking device 5 can lock the connecting part 411 in the locked state, so that the connecting part 41 cannot slide on the bracket 4. The operator switches the relative locking or unlocking state of the locking device 5 to pull up or push down relative to the bracket 4 to realize the movement of the heating part 3 between the initial position and the heating position.

[0034] Furthermore, the locking device 5 includes a pressing member 51, and the operator can switch the locking device 5 from the locked state to the unlocked state by pressing the pressing member 51. Specifically, the pressing member 51 includes a fixed end 511 rotatably connected to the connecting member 41, and also includes a pressing end 513 relative to the fixed end 511. The middle part of the pressing member 51 is also provided with an action portion 512 that can be sleeved on the bracket 4. The locking device 5 also includes an elastic member 52, which is arranged between the pressing member 51 and the connecting member 41, so that the pressing member 51 and the connecting member 41 always have a tendency to move away from each other. In order to facilitate the installation of the elastic member 52, the bracket 4 in this embodiment is a support rod type, so that the elastic member 52 can be sleeved on the bracket 4. The elastic member 52 in this embodiment is a more commonly used spring. In order to make the locking device 5 easy to disassemble and maintain, the locking device 5 in this embodiment further includes a limiting member 53, which is fixedly connected to the connecting member 41. The interior of the limiting member 53 and the end surface corresponding to the connecting member 41 together form a limiting space 531, and the fixed end 511 is inserted into the limiting space 531. Figure 3 Under the action of the elastic member 52, the pressing member 51 and the connecting member 41 always tend to move away from each other, but due to the existence of the fixed end 511, the pressing member 51 can only tilt around the fixed end 511, which will generate an interaction force between the action portion 512 and the bracket 4 to lock the connecting portion 411 of the connecting member 41, so that the connecting member 41 cannot move on the bracket 4. At this time, the locking device 5 is in a locked state; when the operator presses the pressing end 513, see Figure 4 The external force from the operator offsets the force of the elastic member 52, so that the action portion 512 and the bracket 4 are no longer in contact, that is, there is no action force between the action portion 512 and the bracket 4. At this time, the locking device 5 is in an unlocked state. While holding the locking device 5, the operator can keep the pressing member 51 continuously in a pressed state, that is, while keeping the locking device 5 in an unlocked state, the operator can conveniently hold the locking device 5 and carry the connecting member 41 and the heating portion 3 to move between the initial position and the heating position.

[0035] Considering that a certain amount of heat is required to heat the clamping end 22 of the heat shrink handle 21, the device for heating the heat shrink handle in this embodiment also includes a heat source 31 for providing heat to the heating part 3, and the heat source 31 is fixedly connected to the connecting member 41. Correspondingly, the connecting member 41 includes a fixing portion 412 for fixing the heat source 31. The heat source 31 in this embodiment is a hot air gun. This is because the heat shrink handle 21 in this embodiment is made of stainless steel, and its electromagnetic performance is relatively weak, so it is suitable to be heated by a hot air gun or other hot air heating tool. The heat source 31 includes an output portion 311 for outputting heat, that is, the air outlet of the hot air gun, and the heating part 3 includes a matching portion 32 fixedly connected to the output portion 311. A heating space 33 is formed inside the heating part 3. The heating space 33 can gather the heat provided by the heat source 31 to heat the clamping end 22 of the heat shrink handle 21. The heating space 33 can make the heating process more efficient.

[0036] Finally, in order to facilitate the operation of the operator, an operating table 6 is included for placing the base 1, and a storage slot 61 for placing items is partially opened on the operating table 6. The operating table 6 can provide a large operating space. If the base 1 is set to a larger structure, it will make the device as a whole difficult to move, and the storage slot can be used to place items such as a power strip for powering the heat source, and knives that are directly placed on a plane and easy to roll.

[0037] like Figures 5-6 The specific working process of the device for heating the heat shrinkable tool handle provided by this embodiment is shown as follows:

[0038] See also Figure 5 , the heating part 3 is located at the initial position, at this time, there is a large enough space between the heating part 3 and the handle seat 2 to place the heat shrink handle 21 on the handle seat 2. After placing the heat shrink handle 21, the operator will hold the locking device 5 and press the pressing member 51 to make the locking device 5 enter the unlocking state, and move the heating part 3 to the heating position; see Figure 6 At this time, the heating part 3 is in the heating position, that is, the clamping end 22 of the heat shrink handle 21 is in the heating space 33. Then, under the action of the heat source 31, the inner diameter of the clamping end 22 will increase. At this time, the operator can use tweezers or other tools to insert the tool 23 into the clamping end 22, and then turn off the heat source to complete the operation.

[0039] Example 2

[0040] See also Figure 7, which is basically the same as the structure of Example 1, except that the heat source 31 in this embodiment is a small heating device with an air outlet as a hose, and the matching portion 32 of the heating portion 3 in this embodiment is directly fixedly connected to the connecting piece 41. When the heating portion 3 moves up and down, the hose plugged into the matching portion 32 will move with the heating portion 3. This solution is more suitable for the case where the heating device already has an air outlet as a hose.

Claims

1. A device for heating a heat shrinkable tool handle, comprising: Base (1); A tool handle seat (2), arranged on the base (1) and used for placing a heat shrink tool handle (21); A heating portion (3) is disposed above the shank seat (2) and is used to heat the clamping end (22) of the heat shrinkable shank (21); It is characterized in that Also included are: A bracket (4) is arranged on the base (1) and is provided with a connecting member (41) capable of connecting the heating portion (3) thereto, so that the heating portion (3) maintains a preset distance from the base (1), wherein the connecting member (41) includes a connecting portion (411) that at least partially passes through the bracket (4) and is capable of sliding therein: A locking device (5) is arranged on the bracket (4) and is used to lock the connecting portion (411). An operator switches the relative locking or unlocking state of the locking device (5) so as to pull up or push down relative to the bracket (4) to achieve movement of the heating portion (3) between the initial position and the heating position.

2. The device according to claim 1, characterized in that: The locking device (5) comprises a pressing member (51), and an operator can switch the locking device (5) from a locked state to an unlocked state by pressing the pressing member (51).

3. The device according to claim 2, characterized in that: The pressing member (51) includes a fixed end (511) rotatably connected to the connecting member (41), and also includes a pressing end (513) relative to the fixed end (511). The middle part of the pressing member (51) is also provided with an action portion (512) that can be sleeved on the bracket (4). The locking device (5) also includes an elastic member (52). The elastic member (52) is arranged between the pressing member (51) and the connecting member (41), so that the pressing member (51) and the connecting member (41) always have a tendency to move away from each other.

4. The device according to claim 3, characterized in that: The locking device (5) further comprises a limiting member (53), wherein the limiting member (53) is fixedly connected to the connecting member (41), the interior of the limiting member (53) and the end surface corresponding to the connecting member (41) together form a limiting space (531), and the fixed end (511) is inserted into the limiting space (531).

5. The device according to claim 4, characterized in that: The support (4) is in the form of a supporting rod, and the elastic member (52) is sleeved on the support (4).

6. The device according to any one of claims 1 to 5, characterized in that: It also includes a heat source (31) for providing heat to the heating portion (3); the heat source (31) is fixedly connected to the connecting member (41); correspondingly, the connecting member (41) includes a fixing portion (412) for fixing the heat source (31).

7. The device according to claim 6, characterized in that: The heat source (31) includes an output portion (311) for outputting heat, the heating portion (3) includes a matching portion (32) fixedly connected to the output portion (311), and a heating space (33) is formed inside the heating portion (3), and the heating space (33) can gather heat provided by the heat source (31) to heat the clamping end (22) of the heat shrink handle (21).

8. The device according to claim 7, characterized in that: It also includes an operating table (6) for placing the base (1).

9. The device according to claim 8, characterized in that: The operating table (6) is partially provided with a storage slot (61) capable of storing items.

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